Senior DevOps Engineer - Remote

🏢 Summary: B2B .NET Developer role focused on developing and maintaining a web-based platform hosted in Azure, including building new features and integrating third-party APIs. The position involves working in a small, independent team delivering increments in short cycles with CI/CD practices. Hybrid work model with one day per week in the office. 🗂️ Requirements: Minimum 2 years experience in web application development, Experience with C# and .NET, Experience with Azure, Experience with AzureFunctions, Experience integrating third-party APIs, Knowledge of CI/CD pipelines, Experience with AzureDevOps 📃 Skills: C#, .NET, Azure, AzureFunctions, AzureDevOps, CI/CD, APIs, Web 🏢 Description: Salary: 500 - 900 PLN / day (B2B) Remote: Hybrid from Gdańsk or Warsaw (1 day from office per week) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis The Jit community will bring you a nice time during regular integration meetings Project We are looking for a .NET Developer to join our team to develop new functionalities and maintain our Client's web-based platform hosted in Azure. The tasks will include expanding the platform as well as integrating with third-party APIs. We offer work in an independent team focused on delivering value to the Clients in short cycles. Responsibilities you'll have Design, develop, and maintain software using C# Effectively communicate in an English-speaking environment Build and deploy code using CI/CD pipelines Expected competences and knowledge Minimum 2 years of experience in developing web applications Experience in working with Azure, especially Azure Functions and Azure Experience in integrating with third-party APIs Great communications skills Willingness to propose improvements and new solutions Knowledge of CI/DD pipelines in Azure DevOps is a plus Technologies you'll work with .Net Azure API Client – why choose this particular client from the Jit portfolio? Our client is a pioneering Norwegian startup specializing in shore power and energy infrastructure optimization. They transform manual and error-prone operations into automated, accurate, and seamless experiences. With their solutions, ports can automate processes to reduce manual errors, monitor real-time energy consumption, and centralize the management of power connections and billing. This comprehensive approach enhances operational efficiency and reduces costs, positioning our client as an innovative partner in the maritime sector. About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams. Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.

🏢 Summary: The offer is for a DevOps Engineer in a financial project focused on building and maintaining a secure API Management platform within a large banking environment. The role centers on automating infrastructure on AWS, developing CI/CD pipelines, and managing containerized environments to ensure stable and efficient API Gateway operations. You will work with modern DevOps tools to enhance monitoring, logging, and infrastructure as code practices. 🗂️ Requirements: Strong experience with AWS, Experience with Terraform for infrastructure provisioning, Hands-on experience with Docker, Hands-on experience with Kubernetes, Experience building and maintaining CI/CD pipelines, Experience with Ansible, Knowledge of monitoring and observability tools, Understanding of DevOps principles and best practices 📃 Skills: AWS, EKS, Terraform, Ansible, Docker, Kubernetes, CI/CD, Grafana, Prometheus, VictoriaMetrics, Splunk, Kong 🏢 Description: Salary: 1100 - 1450 PLN/day on B2B Work model: hybrid from Gdynia / Gdańsk / Warszawa / Łódź (2/3 days per week from the office) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit) The Jit community will bring you a nice time during regular integration meetings Project You will be involved in a financial project focused on enabling fast and secure integrations within a large banking environment and with external partners through a new API Management platform. In this role, you will automate infrastructure provisioning (e.g., EKS) using Terraform and build CI/CD pipelines for API deployments and configuration updates. You will also implement monitoring and logging solutions to ensure platform stability and performance. Additionally, you will support the development of an API Catalogue Portal and work with containerized applications in Kubernetes. The position includes maintaining and improving the API Gateway environment with a strong focus on automation and DevOps best practices. Responsibilities you'll have Automating infrastructure provisioning (e.g., EKS clusters) using Terraform and supporting infrastructure-as-code best practices Building, maintaining, and optimizing CI/CD pipelines for API deployments and configuration changes Managing and improving containerized environments based on Docker and Kubernetes Implementing and enhancing monitoring and logging solutions (e.g., Grafana, Prometheus/Victoria Metrics, Splunk) Supporting the development and operation of the API Gateway platform, including automation and performance improvements Contributing to infrastructure migration activities and continuous improvement of DevOps processes Assisting in the setup and maintenance of the API Catalogue Portal, including deployment pipelines and environment configuration Expected competences and knowledge Strong experience with AWS and infrastructure provisioning using Terraform Hands-on expertise in Docker and Kubernetes, including managing containerized environments Solid understanding of CI/CD pipelines and automation tools Experience with configuration management tools such as Ansible Knowledge of monitoring and observability tools (e.g., Grafana, Prometheus/Victoria Metrics, Splunk) Good understanding of DevOps principles and best practices Nice to have: familiarity with API gateway solutions such as Kong Gateway or similar Technologies you'll work with AWS (including EKS and cloud-native services) Terraform, Ansible Docker, Kubernetes CI/CD tools and pipelines Grafana, Prometheus / Victoria Metrics, Splunk API Gateway solutions (e.g., Kong Gateway or similar) Client – why choose this particular client from the Jit portfolio? Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture , which is conducive to people who place emphasis on work-life balance and feedback culture . Furthermore, all projects are executed in international teams, giving constant exposure to the English language. About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams. Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.

🏢 Summary: Hybrid QA Engineer role focused on testing advanced energy applications for electrical power networks, combining manual and automated QA in an international Agile environment. The position involves Python-based test automation, CI/CD integration, and collaboration with cross-functional teams to support innovative energy solutions. Candidates will work with modern QA tools and gain expertise in both software quality assurance and power systems. 🗂️ Requirements: 3+ years of Software Quality Assurance experience, Experience with test automation in Python, Knowledge of QA methodologies and test design techniques, Experience with testing tools, Experience working in Agile/Scrum environments, Knowledge of SDLC, Experience with Git, Strong analytical and problem-solving skills, English level B2 or higher 📃 Skills: Python, Azure, DevOps, Zephyr, Git, Docker, Kubernetes, Gherkin, OPC, IEC60870-5-104, MODBUS, IEEEC37.118, Agile, Scrum, CI/CD 🏢 Description: Salary: 500-800 PLN/day on B2B Work model: hybrid from Kraków (1-2 days per week from the office) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis The Jit community will bring you a nice time during regular integration meetings Work on cutting-edge technologies supporting the global energy transition Collaborate with international teams and industry experts Grow your technical expertise in both Software QA and Power Systems Project We are looking for a QA Engineer to join a global product team developing advanced energy applications that support the operation and reliability of electrical power networks. You'll work alongside software developers, scientists, and product managers to deliver innovative solutions that contribute to a smarter and greener energy future. Responsibilities you'll have Plan and execute software testing strategies based on business and functional requirements Design, develop, and maintain automated and manual test cases Perform functional and non-functional testing of customer-facing solutions Integrate automated tests into CI/CD pipelines using Azure DevOps Validate real-life scenarios using laboratory equipment Manage test execution and reporting through Zephyr Scale and Azure DevOps Collaborate with development teams to identify, troubleshoot, and resolve issues Drive continuous improvements in QA processes, testing standards, and product quality Participate actively in Agile/Scrum ceremonies and advocate testing best practices Build expertise in Power Systems and support the product throughout its lifecycle Mentor team members and promote a quality-first mindset across the organization Expected competences and knowledge 3+ years of experience in Software Quality Assurance Hands-on experience with test automation in Python Strong understanding of QA methodologies , test design techniques, and testing tools Experience working in Agile/Scrum environments Familiarity with SDLC and version control systems ( Git ) Strong analytical and problem-solving skills Good command of English (at least B2) Nice to have Knowledge of Power Systems Experience with industrial communication protocols (OPC, IEC 60870-5-104, MODBUS, IEEE C37.118) Docker and Kubernetes experience BDD testing approaches (Gherkin) ISTQB certification Experience with performance , security , or compliance testing Technologies you'll work with Python Azure DevOps Zephyr Git Docker Kubernetes Gherkin Client – why choose this particular client from the Jit portfolio? Our Client is an established global technology leader driving the digital transformation and innovation required to accelerate the transition toward a carbon-neutral future . Serving customers across the utility, industry, and infrastructure sectors, they provide cutting-edge solutions and services across the entire energy value chain. The organization is actively evolving the worlds energy systems to make them more sustainable, flexible, and secure, while precisely balancing social, environmental, and economic value. With a proven track record and an unparalleled installed technological base spanning well over 100 countries, the company operates on a massive global scale. About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams. Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.

🏢 Summary: Senior Backend Java Developer role in a long-term project building scalable, high-performance backend systems integrated with AWS cloud services. The position focuses on clean architecture, batch processing, and containerized deployments within an agile environment. Opportunity to shape technical decisions while working on a business-critical enterprise system. 🗂️ Requirements: Minimum 8 years of experience in Java backend development, Strong proficiency in Java, Solid knowledge of PostgreSQL, Experience with database optimization, Hands-on experience with Hibernate Criteria API, Experience with Spring Boot, Experience with Spring Batch, Experience with batch processing, Practical knowledge of AWS services (ECS, S3, RDS), Experience with Docker, Knowledge of REST API design, Understanding of clean architecture principles 📃 Skills: Java, Spring, SpringBoot, SpringBatch, Hibernate, PostgreSQL, AWS, ECS, S3, RDS, Docker, REST, SQL, AI 🏢 Description: Salary: 1200 - 1600 pln/md on B2B Hybrid model : hybrid from Gdynia (2 day working from the office, final details to be discussed with the team) Why choose this offer? Be part of a development team working on a long-term project Opportunity to shape technical decisions and best practices from the start Work on a scalable, high-performance system with a strong focus on clean architecture Gain hands-on experience with cloud technologies and containerization Project This project will focus on developing scalable backend solutions for high-demand business operations, integrating cloud services, and ensuring system reliability. You will work in an agile environment with a strong emphasis on code quality, clean architecture, and performance optimization. Expected competences and knowledge Min. 8 years of experience and proficiency in Java and backend development principles Solid understanding of PostgreSQL and database optimization techniques Hands-on experience with Hibernate Criteria API for efficient data queries Experience with Docker for containerization and deployment In-depth knowledge of the Spring ecosystem ( Spring Boot, Spring Batch) Experience in batch processing using Spring Batch Practical knowledge of AWS services , including ECS, S3, and RDS Openness to adopting and working with AI tools What you'll be doing Developing new application modules based on business requirements Reviewing and improving code , ensuring high maintainability and scalability Designing and implementing efficient backend solutions Writing clean, structured, and scalable code following best practices Technologies you'll work with Java Spring (Boot, Batch) Hibernate REST API PostgreSQL AWS (ECS, S3, RDS) Docker AI Client – why choose this particular client from the Jit portfolio? We have partnered with our Client, a leading HR company with over 60 years of experience and a presence in multiple countries around the world. Our Client provides a wide range of recruitment and job placement services and is dedicated to helping individuals achieve their career goals. In Poland, our Client has been operating for over 20 years and is at the forefront of digitization in the HR services industry. Our team has been building the Time tracking system for our Client since 2019 , a complex tool for registering and settling the working time of full-time and temporary employees working under different legal and organizational conditions, supporting on-boarding processes, and integrating with the employee portal and mobile app. As a member of Jit Team, you will have the opportunity to work on a modern, complex enterprise-class system built in modern technologies such as Java and the AWS cloud . With a business-critical operation, the Work Time system settles working time for tens of thousands of employees every month and contributes to our Client's revenue. About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams. Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.

🏢 Summary: Full Stack Developer role focused on building and modernizing a cloud-based SaaS platform in Microsoft Azure for managing and optimizing district heating and energy systems. The position involves end-to-end development across Node.js backend services and React frontend applications, working with real-time data, integrations, and distributed cloud environments. The offer includes ownership of features from development to production in a quality-driven, Agile team. 🗂️ Requirements: Minimum 3 years commercial experience as Full Stack Developer, Strong experience with Node.js and TypeScript, Strong experience with React and TypeScript, Experience building and maintaining REST APIs, Experience with MySQL and MongoDB, Experience with InfluxDB, Experience with automated unit and integration testing, Experience with Git and pull request workflows, Ability to work within large existing codebases, Understanding of safe data operations and data integrity, Experience working in Agile/Scrum environments, Good written and spoken English 📃 Skills: Node.js, TypeScript, React, REST, MySQL, MongoDB, InfluxDB, MQTT, Docker, Kubernetes, Azure, AzureDevOps, CI/CD, YAML, Grafana, Sentry, Cypress, Git, pnpm 🏢 Description: Salary: 700 - 850 PLN/MD on B2B Work model: hybrid from Gdańsk / Warszawa / Kraków / Rzeszów Why choose this offer? Work on a modern SaaS platform hosted in the cloud (including Microsoft Azure), used to manage and optimize district heating and energy systems Join a distributed team working across the full technology stack, from backend services to frontend applications Take ownership of features from development through production deployment Work in an environment that values automated testing, code quality, and peer code reviews Contribute to a platform with a real-world impact on energy efficiency and operational optimization Project The project is a cloud-based SaaS platform hosted in Microsoft Azure that supports the management and optimization of district heating networks, heating substations, and other components of heating infrastructure. The application collects and processes data from meters, sensors, network measurements, and controllers, enabling remote monitoring, configuration, and control of connected devices. It provides real-time and historical analysis of energy consumption and operational parameters , along with reporting, alerting, dashboards, maps, and data visualizations that help operators efficiently oversee entire heating networks. The platform also integrates with external data sources, such as weather forecasts and optimization systems, to improve operational efficiency and decision-making. The successful candidate will initially focus on modernizing and improving internal tools before moving into feature development and platform-related initiatives. The role involves broad full-stack development across Node.js backend services and React-based frontend applications, working within a large, established codebase and contributing to solutions used in a distributed, cloud-native environment. Expected competences and knowledge Minimum 3 years of commercial experience as a Full Stack Developer working with Node.js, TypeScript and React Strong experience with Node.js and TypeScrip t for building and maintaining backend services and REST APIs Strong experience with React and TypeScript , including modern hooks-based development and component design Experience working with MySQL, MongoDB, and ideally InfluxDB , with a solid understanding of data modelling, querying, performance optimization, and maintaining data integrity across relational and document databases Ability to work effectively within a large existing codebase, following established patterns and safely extending applications and services built by other engineers Practical experience with automated testing , including unit and integration testing as a standard part of the development process Experience working with Git and pull request-based workflows , including participating in code reviews and providing constructive feedback Understanding of safe and reliable data operations , including idempotency, handling partial failures, and minimizing risks associated with data modifications Good written and spoken English skills , enabling effective collaboration within a distributed, international team Experience working in Agile/Scrum environments , including estimation, stand-ups, sprint planning, and sprint commitments Proactive, self-organized approach to work , with the ability to identify and communicate blockers early Strong ownership mindset and accountability for delivering features from development through production Nice to have: Experience with microservices and event-driven architectures, including message brokers, queues, and pub/sub patterns Familiarity with MQTT and systems processing telemetry or IoT device data Experience with Docker and basic knowledge of Kubernetes Experience working in monorepo environments and with pnpm workflows Familiarity with Microsoft Azure and Azure DevOps CI/CD pipelines Understanding of observability concepts, including logs, metrics, and traces, with tools such as Grafana and Sentry Experience with Cypress or other end-to-end testing frameworks Experience with event sourcing architectures Knowledge of IoT, industrial protocols, or domains such as energy management, district heating, building management systems, or smart infrastructure solutions Technologies you'll work with Node.js TypeScript React REST APIs MySQL MongoDB InfluxDB MQTT Job Queues Docker Kubernetes pnpm Monorepo Architecture Microsoft Azure Azure DevOps CI/CD Pipelines (YAML) Grafana Sentry Cypress Git Automated Testing (Unit, Integration, E2E) Client – why choose this particular client from the Jit portfolio? Our Client engineers technologies that enable the world of tomorrow to do more with less. They meet the growing need for infrastructure, food supply, energy efficiency and climate-friendly solutions . Their products and services are used in areas such as refrigeration, air conditioning, heating, motor control and mobile machinery. They are also active in the field of renewable energy as well as district heating infrastructure for cities and urban communities. Their innovative engineering dates back to 1933 and today our Client is a world-leader , employing more than 27,000 employees and serving customers in more than 100 countries . They are still privately held by the founding family. About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams. Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.

🏢 Summary: DevOps Engineer role in an international banking project focused on developing and supporting Data Products. The position involves building and maintaining CI/CD pipelines, automating infrastructure, and supporting Kubernetes-based deployments in an agile environment. You will collaborate with development and QA teams to improve testing, deployment, and delivery processes. 🗂️ Requirements: Strong experience with CI/CD pipelines, especially Jenkins, Experience with Terraform and Ansible, Good Linux administration skills, Scripting skills in Shell and Python, Basic experience with Kubernetes and containerization, Proficiency with Git, Basic programming skills in Python or Groovy, Experience working in agile environments 📃 Skills: Jenkins, JobDSL, Groovy, Terraform, Ansible, Linux, Shell, Python, Kubernetes, Docker, Git, Bitbucket, Scala, Kafka, Airflow, AWS, Hadoop, Spark, SonarQube, PostgreSQL, Tekton 🏢 Description: Salary: 1000 - 1200 PLN/day on B2B Work model: elastic hybrid (1-2 days per week from the office in Warszawa/ Gdańsk/ Gdynia/ Łódź) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit) The Jit community will bring you a nice time during regular integration meetings Project You will be involved in a financial project focused on supporting the development of Data Products as a DevOps Engineer within an international banking environment . The role centers on designing and maintaining CI/CD pipelines using Jenkins, as well as building automation solutions with Terraform and Ansible. You will collaborate closely with developers and QA engineers, providing tools, scripts, and support to improve testing, deployment, and delivery processes . Additionally, you will troubleshoot Kubernetes-based deployments and act as a key point of contact for DevOps-related topics across teams. The project follows an agile approach and requires strong communication and collaboration skills. Responsibilities you'll have Develop and maintain CI/CD pipelines using Jenkins (JobDSL, Groovy) Build and manage infrastructure automation with Terraform and Ansible Create and maintain scripts in Shell and Python to support development processes Develop small tools and utilities to improve CI/CD pipelines and support developers and QA engineers Troubleshoot deployment issues in Kubernetes environments Collaborate with internal and external teams as a DevOps point of contact Support and enable developers and testers by promoting DevOps best practices Contribute to knowledge sharing through internal trainings, demos, and presentations Optionally develop container-based microservices and support AI-related solutions in the Data area Expected competences and knowledge Strong experience in CI/CD, particularly with Jenkins or similar automation tools Solid knowledge of infrastructure as code tools, especially Terraform and Ansible Good Linux administration skills and strong scripting abilities (Shell, Python) Basic experience with Kubernetes and containerization concepts Proficiency with Git (preferably Bitbucket) Basic programming skills (Python, Groovy) Understanding of agile methodologies and experience working in distributed teams Strong communication skills and a collaborative mindset Nice to have Experience with Kafka, Airflow, AWS, Hadoop, or Spark Familiarity with SonarQube, PostgreSQL, or Tekton Technologies you'll work with Jenkins (JobDSL, Groovy) for CI/CD pipeline development Terraform and Ansible for infrastructure automation Linux environment with Shell and Python scripting Kubernetes and Docker for containerization Git (Bitbucket) for version control Scala and Python-based application ecosystems Kafka, Airflow, AWS, Hadoop, Spark SonarQube, PostgreSQL, Tekton Client – why choose this particular client from the Jit portfolio? Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture , which is conducive to people who place emphasis on work-life balance and feedback culture . Furthermore, all projects are executed in international teams, giving constant exposure to the English language. About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams. Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.

🏢 Summary: Senior software engineering role focused on developing high-performance, real-time solutions for power grid automation using modern C++ and cross-platform technologies. The position involves designing scalable and secure systems, optimizing low-latency applications, and contributing to mission-critical energy infrastructure projects in an international agile environment. Hybrid work from Kraków with long-term product development and collaboration across global R&D teams. 🗂️ Requirements: University degree in computer science, engineering, or related field, 8+ years of experience in senior technical roles, Advanced C++17/20 knowledge, Experience with multithreading and synchronization, Experience with asynchronous I/O and real-time systems, Cross-platform development for Windows and Linux, Knowledge of CMake and Visual Studio, Experience with Docker and Kubernetes, Experience with microservices architecture, Performance profiling and optimization experience, Knowledge of software architecture and secure system design, Understanding of unit and integration testing, Knowledge of scalability, performance, and security requirements, Experience with power grid management systems, Knowledge of SCADA, IED, and RTU systems 📃 Skills: C++, C#, .NET, Rust, CMake, VisualStudio, Windows, Linux, Docker, Kubernetes, Microservices, SCADA, IED, RTU, STL, RAII, Agile 🏢 Description: Salary: 1100-1400 pln/md on B2B Remote: hybrid from Kraków (1-2 days per week from the office) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis The Jit community will bring you a nice time during regular integration meetings Work on cutting-edge technologies supporting the global energy transition Collaborate with international teams and industry experts Project The project is part of the Grid Automation domain, focused on developing innovative solutions for the power systems of the future. The team is responsible for designing and building high-performance, secure, and reliable software applications using modern C++ (C++17/20) , with a strong emphasis on real-time operation, system resilience, and long-term product support. As part of this initiative, engineers develop mission-critical software that supports energy infrastructure worldwide. The solutions are designed to meet demanding requirements for reliability, efficiency, cybersecurity, and continuous operation in real-time environments. The role offers close collaboration with global R&D and technology teams, bringing together specialized expertise and advanced engineering capabilities. Team members have a direct impact on the development of next-generation products that help ensure the stability, safety, and modernization of critical power systems. This is an opportunity to work on complex, cutting-edge technologies while contributing to software that delivers long-term value and supports essential infrastructure on a global scale. Responsibilities you'll have Develop system design in areas like multithreading, synchronization, I/O, and latency requirements for real-time operation Develop high-performance C++ cores to managed runtime services (.NET, RUST) with minimal latency overhead Implement performance optimization and scalability : profile threading behavior, minimizing lock contention, reducing memory allocations in critical paths, and ensure predictable latency at scale Maintain high code quality through code reviews, unit testing, and adherence to SOLID, KISS, DRY and industry best practices Participate in system design, best practices and maintaining code quality in performance-critical sections Participate in technical architecture reviews, design documentation, and roadmaps for feature development, refactoring initiatives, and legacy code modernization, collaborate with engineering, product, and business stakeholders to transform requirements into clear architectural designs Support strategic technology decisions on dependencies, build tooling, dependency management, and secure software supply chain practices, maintain cross-platform support: drive modernization of build systems, ensure consistency across multiple deployment environments, and support Linux/Windows compatibility Practical Linux development and deployment strategies Contribute to achieving business goals by designing, developing, and delivering high-quality software solutions Continuously enhance existing systems and contribute to the creation of new features Work effectively within an agile environment, continually expanding your technical expertise and understanding of the business domain, actively participate in a cross-disciplinary team and contribute to shared objectives Expected competences and knowledge University degree in computer science, engineering, or a related technical field 8+ years of experience in senior technical roles Advanced proficiency in modern C++ (C++17/20) with deep understanding of RAII, smart pointers, STL, concurrency, and memory management Practical knowledge of C# development in plus Strong experience with multithreading, synchronization primitives, asynchronous I/O and real-time system design Proficiency with building systems (CMake, Visual Studio) and cross-platform development for Windows and Linux Experience with containerization technologies (Docker, Kubernetes) and microservices architecture patterns Demonstrated experience with performance profiling, optimization, and low-latency systems Understanding of software architecture principles and secure, scalable system design Excellent problem-solving skills and the ability to tackle complex technical challenges Good understanding of unit and integration testing techniques and testing frameworks Knowledge of non-functional requirements (performance, scalability, security) Practical experience developing systems for power grid management and monitoring Understanding of power grid operations and applicable standards Experience with industrial automation systems (SCADA, IED, RTU) Technologies you'll work with C++ 17/20 RAII, smart pointers, STL C# .NET, RUST CMake, Visual Studio Windows, Linux Docker, Kubernetes Microservices SCADA, IED SOLID, KISS, DRY Agile Client – why choose this particular client from the Jit portfolio? Our Client is an established global technology leader driving the digital transformation and innovation required to accelerate the transition toward a carbon-neutral future . Serving customers across the utility, industry, and infrastructure sectors, they provide cutting-edge solutions and services across the entire energy value chain. The organization is actively evolving the worlds energy systems to make them more sustainable, flexible, and secure, while precisely balancing social, environmental, and economic value. With a proven track record and an unparalleled installed technological base spanning well over 100 countries, the company operates on a massive global scale. About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams. Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.

🏢 Summary: Senior .NET Developer role focused on building scalable, cloud-native platforms for intelligent heating and energy management systems in the smart building industry. The position involves developing event-driven services, cloud infrastructure, and user-facing applications supporting distributed energy devices. The project centers on sustainable, efficient heating and cooling solutions. 🗂️ Requirements: Minimum 5 years experience with C# and .NET, Experience with Azure cloud ecosystem, Experience with MongoDB, Experience with event-driven architecture, English proficiency at B2 level or higher, Ability to work independently and in cross-functional team 📃 Skills: C#, .NET, Azure, MongoDB, PostgreSQL, Kafka, Kubernetes, React, TypeScript, Python, Microservices 🏢 Description: Salary: 1000 - 1500 PLN/MD + VAT Remote: flexible hybrid from Gdynia / Kraków / Warszawa / Rzeszów Why choose this offer? You will have the opportunity to develop and improve a software tool which helps provide customers all over the world with tailor-made heating and cooling solutions Your work will help create more sustainable, cost-efficient and environment friendly heating and cooling solutions The Jit community will bring you a nice time during regular integration meetings Project We are looking for experienced Senior .Net Developer who will be part of a team developing modern software solutions for the energy and smart building industry, focused on intelligent heating and hot water management systems. The project involves building scalable cloud-native platforms that support monitoring, optimization, and automation of distributed energy devices used in residential and commercial environments. You’ll work closely with backend, frontend, and platform engineers to design and develop event-driven services, cloud infrastructure, and user-facing applications. Expected competences and knowledge Strong experience with C# / .NET - min. 5 years of experience Knowledge of Azure cloud ecosystem Experience with MongoDB Experience with event-driven architecture English proficiency at a minimum B2 level Ability to work independently and as part of a cross-functional engineering team Nice to have : Experience with Kafka Experience with Kubernetes Familiarity with React / TypeScript Familiarity with PostgreSQL Experience with migration and platform transformation projects Technologies you'll work with C# / .NET Azure Cloud React, TypeScript MongoDB, PostgreSQL Kafka Python Kubernetes Event-driven microservices architecture Client – why choose this particular client from the Jit portfolio? Our Client engineers technologies that enable the world of tomorrow to do more with less. They meet the growing need for infrastructure, food supply, energy efficiency and climate-friendly solutions . Their products and services are used in areas such as refrigeration, air conditioning, heating, motor control and mobile machinery. They are also active in the field of renewable energy as well as district heating infrastructure for cities and urban communities. Their innovative engineering dates back to 1933 and today our Client is a world-leader , employing more than 27,000 employees and serving customers in more than 100 countries . They are still privately held by the founding family. About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams. Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.

🏢 Summary: Senior .NET Developer role focused on building cloud-native, data-intensive platforms for intelligent heating and smart building systems. The position involves developing event-driven services, scalable analytics, and real-time operational insights using modern backend, cloud, and data technologies. Flexible hybrid work is available from multiple Polish cities. 🗂️ Requirements: 5+ years commercial experience with C#, .NET experience, Experience with Kubernetes, Basic Azure knowledge, Practical Python experience, Strong PostgreSQL experience, Experience with event-driven architecture, Experience with asynchronous messaging systems, English level B2 or higher, Ability to work in cross-functional teams 📃 Skills: C#, .NET, Python, Kafka, Iceberg, PostgreSQL, GreptimeDB, React, TypeScript, Kubernetes, Azure, SpiceDB, Microservices 🏢 Description: Salary: 1250 - 1500 PLN/MD + VAT Remote: flexible hybrid from Gdynia / Kraków / Warszawa / Rzeszów Why choose this offer? You will have the opportunity to develop and improve a software tool which helps provide customers all over the world with tailor-made heating and cooling solutions Your work will help create more sustainable, cost-efficient and environment friendly heating and cooling solutions The Jit community will bring you a nice time during regular integration meetings Project We are looking for experienced Senior .Net Developer who will be part of a team developing modern software solutions for the energy and smart building industry, focused on intelligent heating and hot water management systems. You will join a team building modern data-intensive and cloud-native software platforms focused on scalable analytics, distributed event processing, and real-time operational insights. You’ll work closely with backend, frontend, and platform engineers to design and develop event-driven services, cloud infrastructure, and user-facing applications. Expected competences and knowledge Strong experience with C# / .NET – min. 5 years of commercial experience Hands-on experience with Kubernetes and basic Azure cloud knowledge Practical experience with Python Strong practical experience with PostgreSQL Experience with event-driven architecture and asynchronous messaging systems English proficiency at a minimum B2 level Ability to work independently and as part of a cross-functional engineering team Nice to have : Experience with migration and platform transformation projects React / TypeScript skills Python skills focused on data engineering, analytics, ETL, and data processing Hands-on experience with Kafka Experience with modern data platform ecosystems Experience designing and developing cloud-native architectures Technologies you'll work with C# / .NET Python Apache Kafka Apache Iceberg PostgreSQL GreptimeDB / Time-series databases React, TypeScript Kubernetes Azure Cloud SpiceDB / ReBAC Event-driven microservices architecture Client – why choose this particular client from the Jit portfolio? Our Client engineers technologies that enable the world of tomorrow to do more with less. They meet the growing need for infrastructure, food supply, energy efficiency and climate-friendly solutions . Their products and services are used in areas such as refrigeration, air conditioning, heating, motor control and mobile machinery. They are also active in the field of renewable energy as well as district heating infrastructure for cities and urban communities. Their innovative engineering dates back to 1933 and today our Client is a world-leader , employing more than 27,000 employees and serving customers in more than 100 countries . They are still privately held by the founding family. About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams. Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.

🏢 Summary: Senior .NET Developer role focused on building scalable, cloud-native platforms for intelligent heating and energy management systems in the smart building industry. The position involves developing event-driven services, cloud infrastructure, and user-facing applications within a distributed energy environment. Fully remote or hybrid work with competitive daily rate. 🗂️ Requirements: Minimum 5 years experience with C# and .NET, Strong knowledge of Azure cloud ecosystem, Experience with MongoDB, Experience with event-driven architecture and NATS, Familiarity with React and TypeScript, Experience with ReBAC and SpiceDB, Familiarity with PostgreSQL and EF Core, English proficiency at B2 level or higher, Understanding of optimization and data workloads in Python, Ability to work independently and in cross-functional teams 📃 Skills: C#, .NET, Azure, MongoDB, NATS, React, TypeScript, SpiceDB, ReBAC, PostgreSQL, EFCore, Python, Kafka, Kubernetes 🏢 Description: Salary: 1000 - 1280 PLN/MD + VAT Remote: flexible hybrid from Gdynia / Kraków / Warszawa / Rzeszów Why choose this offer? You will have the opportunity to develop and improve a software tool which helps provide customers all over the world with tailor-made heating and cooling solutions Your work will help create more sustainable, cost-efficient and environment friendly heating and cooling solutions The Jit community will bring you a nice time during regular integration meetings Project We are looking for experienced Senior .Net Developer who will be part of a team developing modern software solutions for the energy and smart building industry, focused on intelligent heating and hot water management systems. The project involves building scalable cloud-native platforms that support monitoring, optimization, and automation of distributed energy devices used in residential and commercial environments. You’ll work closely with backend, frontend, and platform engineers to design and develop event-driven services, cloud infrastructure, and user-facing applications. Expected competences and knowledge Strong experience with C# / .NET - min. 5 years of experience Deep knowledge of Azure cloud ecosystem Experience with MongoDB Experience with event-driven architecture and NATS Familiarity with React / TypeScript Experience with ReBAC / SpiceDB Familiarity with PostgreSQL / EF Core English proficiency at a minimum B2 level Understanding of optimization and data-related workloads in Python Ability to work independently and as part of a cross-functional engineering team Nice to have : Experience with Kafka Experience with Kubernetes Technologies you'll work with C# / .NET Azure Cloud React, TypeScript MongoDB, PostgreSQL Kafka Python Kubernetes Event-driven microservices architecture Client – why choose this particular client from the Jit portfolio? Our Client engineers technologies that enable the world of tomorrow to do more with less. They meet the growing need for infrastructure, food supply, energy efficiency and climate-friendly solutions . Their products and services are used in areas such as refrigeration, air conditioning, heating, motor control and mobile machinery. They are also active in the field of renewable energy as well as district heating infrastructure for cities and urban communities. Their innovative engineering dates back to 1933 and today our Client is a world-leader , employing more than 27,000 employees and serving customers in more than 100 countries . They are still privately held by the founding family. About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams. Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.