Senior .NET Developer

🏢 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: 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: Remote Senior .NET Engineer role focused on developing, optimizing, and maintaining enterprise applications built on ASP.NET, .NET Core, and .NET Framework. The position involves performance tuning, database optimization, production troubleshooting, and contributing within a cross-functional agile team. Strong emphasis on system reliability, CI/CD practices, and collaboration in an English-speaking environment. 🗂️ Requirements: Bachelor’s degree in Computer Science or related field, Strong experience with .NET technologies (ASP.NET, .NET Core, .NET Framework), Solid experience with MSSQL databases and SQL, Experience with stored procedures and query optimization, Proven experience in debugging and performance optimization, Experience troubleshooting production systems, Familiarity with CI/CD tools (Jenkins, TeamCity, or Azure DevOps), Ability to work in cross-functional agile teams, Strong English communication skills 📃 Skills: C#, .NET, ASP.NET, MSSQL, SQL, StoredProcedures, Jenkins, TeamCity, AzureDevOps, CICD, Debugging, Performance, Git, DevOps 🏢 Description: Salary: up to 1300 PLN/MD on B2B Work model: remote Why choose this offer? Work in an agile and self-sufficient team with autonomy over development Collaborate with an English-speaking, multicultural team The client is one of the European leaders in its field and is building a completely new platform using the latest technologies The Jit community will bring you a nice time during regular integration meetings Enjoy work-life balance in a company that values flexibility and innovation Project We are looking for a highly skilled Senior .NET Engineer to join our dynamic team. In this role, you will focus on developing, improving, maintaining, troubleshooting, and optimizing applications built with ASP.NET, .NET Core, and .NET Framework. Your expertise in MSSQL databases, debugging, and performance improvement will be crucial in ensuring smooth system operations. Our teams follow a T-shaped, cross-functional setup , meaning engineers contribute beyond their primary expertise. You should be comfortable taking on small tasks in different areas , including bug fixes, PR reviews, or DevOps contributions . We value collaboration and adaptability over rigid role definitions. What you'll be doing Develop, improve, maintain and support applications developed in ASP.NET, .NET Core, and .NET Framework Identify and resolve software and database performance issues Optimize SQL queries and stored procedures to improve system efficiency Collaborate with cross-functional teams to debug and resolve production issues Implement performance improvements and ensure application reliability Work with build and deployment tools (e.g., Jenkins, TeamCity, Azure DevOps) Communicate progress and technical updates to stakeholders and team members Expected competences and knowledge Bachelor's degree in Computer Science, Engineering, or a related field Strong development experience in .NET technologies (ASP.NET, .NET Core, .NET Framework) Expertise in troubleshooting production system issues Solid experience with MSSQL databases, SQL, and stored procedures A proactive, problem-solving mindset Previous experience in debugging and performance optimization Familiarity with CI/CD tools such as Jenkins, TeamCity, or Azure DevOps Strong communication skills to interact with both technical and non-technical stakeholders Technologies you'll work with .NET Framework, .NET Core, ASP.NET MSSQL CI/CD Tools Debugging & Performance Optimization Version Control DevOps Contributions Client – why choose this particular client from the Jit portfolio? Our client is a Scandinavian supplier of software and services for purchasing and tendering processes in highly formalized conditions, such as orders in accordance with public procurement law at the level of the European Union or individual member states. The delivery center is located in Utrecht. Client’s platforms allow to announce tenders and conduct the entire procedure of collecting and evaluating offers at every stage of the purchasing process. They are used both by public administration bodies at various levels in European countries and by purchasing departments of large companies and corporations. 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 500 experienced experts . We create highly specialised teams for clients from all over the world. We offer team members developmental projects, a wide range of benefits and a proprietary professional development programme. Behind our maxim are also charitable and educational activities. We support pupils and students by donating learning equipment. We offer internships to help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We are a Polish company and we share what we have achieved over 15 years of activity . By supporting indigenous initiatives, we ensure the circulation of good energy.

🏢 Summary: Senior .NET Developer role focused on building cloud-native, data-intensive platforms for intelligent heating and energy management systems. The position involves developing scalable event-driven services, real-time analytics solutions, and distributed systems in a modern cloud environment. You will collaborate with cross-functional teams to design and deliver robust backend and cloud infrastructure components. 🗂️ Requirements: Minimum 5 years commercial experience with C# and .NET, Hands-on experience with Kubernetes, Basic knowledge of Azure cloud, Strong practical experience with PostgreSQL, Experience with event-driven architecture, Experience with asynchronous messaging systems, English proficiency at B2 level or higher, Ability to work independently and in cross-functional teams 📃 Skills: C#, .NET, Kubernetes, Azure, PostgreSQL, Kafka, Python, React, TypeScript, Iceberg, GreptimeDB, SpiceDB 🏢 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. 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 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 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.

🏢 Summary: Senior .NET Developer role in a data-intensive, cloud-native project for intelligent heating and energy management systems. The position focuses on building scalable analytics platforms, event-driven services, and real-time data processing solutions in a distributed environment. Fully remote or hybrid work with modern technologies in the energy and smart building domain. 🗂️ Requirements: Minimum 5 years commercial experience with C# and .NET, Strong Python skills in data engineering, ETL, and analytics, Experience with Apache Iceberg and modern data platforms, Hands-on experience with Kubernetes, Basic knowledge of Azure Cloud, Strong practical experience with PostgreSQL, Hands-on experience with Kafka, Experience with event-driven architecture and asynchronous messaging systems, Experience with time-series databases, Experience with React and TypeScript, Knowledge of advanced authorization systems such as ReBAC or SpiceDB, English proficiency at B2 level or higher 📃 Skills: C#, .NET, Python, Kafka, Iceberg, PostgreSQL, GreptimeDB, Kubernetes, Azure, React, TypeScript, SpiceDB, ReBAC, NATS 🏢 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. 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 Strong Python skills focused on data engineering, analytics, ETL, and data processing Experience with Apache Iceberg and modern data platform ecosystems Hands-on experience with Kubernetes and basic Azure cloud knowledge Strong practical experience with PostgreSQL Hands-on experience with Kafka Experience with event-driven architecture and asynchronous messaging systems (Kafka / NATS during transition period) Experience with GreptimeDB or other time-series databases React / TypeScript skills Experience with ReBAC / SpiceDB or advanced authorization 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 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 Test Automation Engineer role focused on designing, scaling, and maintaining automated test suites in a C#/.NET 8 environment, covering both UI and API layers. The position involves building robust test architecture, implementing CI/CD automation, and ensuring advanced failure diagnostics. Work is delivered in an international, hybrid setup with strong emphasis on high-quality automated testing. 🗂️ Requirements: 5+ years of test automation experience in .NET environments, Strong proficiency in C#, Hands-on experience with .NET 8, Experience in UI automation with Playwright, Experience in API automation using HttpClient or RestSharp, Experience with JSON validation and schema testing, Experience with NUnit and test runners, CI/CD automation experience with Bitbucket or Bamboo, Strong knowledge of Git and code review practices, Experience designing scalable and maintainable test architecture 📃 Skills: C#, .NET, Playwright, HttpClient, RestSharp, JSON, NUnit, Bitbucket, Bamboo, Git, CI/CD, Pega 🏢 Description: Salary: 800 - 1100 PLN/day on B2B Work model: elastic hybrid from Gdynia / Gdańsk / Warszawa (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 We are looking for a Senior Test Automation Engineer who will take ownership of designing, scaling, and maintaining automated test suites within a C# / .NET 8 environment. This role requires strong hands-on experience in both UI and API test automation , as well as the ability to design robust, maintainable test architecture and support advanced failure diagnostics. Responsibilities you'll have Design, develop, and maintain automated test suites in C# / .NET 8 Implement UI automation using Playwright with Page Object Model Develop API automation using HttpClient / RestSharp Perform JSON validation and schema checks Build scalable and maintainable test architecture Conduct failure diagnostics and debugging Maintain and improve CI/CD test pipelines Expected competences and knowledge 5+ years of experience in test automation within .NET environments Strong proficiency in C# Hands-on experience with .NET 8 test automation Solid experience in UI automation using Playwright Strong experience in API automation (HttpClient / RestSharp) Experience with JSON validation and schema testing Experience with NUnit and test runners CI/CD automation experience ( Bitbucket, Bamboo ) Strong Git knowledge, including code review practices and maintaining test pipelines Proven experience designing scalable and stable test architecture Nice to have Experience working with Pega Technologies you'll work with C# Playwright Git JSON NUnit Bitbucket Bamboo RestSharp Pega 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 700 experienced experts . We create highly specialised teams for clients from all over the world. We offer team members developmental projects, a wide range of benefits and a proprietary professional development programme. Behind our maxim are also charitable and educational activities. We support pupils and students by donating learning equipment. We offer internships to help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We are a Polish company and we share what we have achieved over 15 years of activity . By supporting indigenous initiatives, we ensure the circulation of good energy.

🏢 Summary: Senior Fullstack Developer role focused on building and evolving a banking web application (Economic Profitability Calculator) using .NET and Angular. The position involves designing and implementing business processes, integrations, and frontend-heavy features while contributing to architectural decisions. You will work in an Agile team, ensuring high code quality and maintaining CI/CD pipelines. 🗂️ Requirements: 6+ years commercial software development experience, 4+ years experience with .NET and C# web development, 4+ years experience with Angular, Strong knowledge of SQL, Practical experience with Docker, Experience with CI/CD pipelines and automation, Experience working in Agile environment, English proficiency minimum B2 📃 Skills: .NET, C#, Angular, TypeScript, SQL, MSSQL, Dapper, Docker, Kubernetes, Kafka, Git, Jira, Bamboo, Confluence, Bitbucket 🏢 Description: Salary: 900 - 1200 PLN/day on B2B Work model: elastic hybrid from Gdynia / Gdańsk (at least 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 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 We are looking for a Senior Fullstack Developer to join our client’s team working on the Economic Profitability Calculator (EPC) — a web application used in the banking domain. As part of the EPC team, you will collaborate closely with business experts and have a real impact on the product by contributing to both frontend and backend development, as well as solution design. Responsibilities you'll have Implementing EPC business processes and integrations with other banking systems Contributing to solution design and technical decisions Designing and developing application features with a strong focus on frontend Ensuring high code quality through test automation, code reviews, and pair programming Working in an Agile setup Cooperating closely with the Product Owner and Subject Matter Experts Maintaining and extending CI/CD pipelines and automation Expected competences and knowledge 6+ years of commercial experience in software development 4+ years of experience in .NET (C#) web development 4+ years of experience with Angular Strong knowledge of SQL Practical experience with Docker Good communication skills, including communication in English (min. B2 level) Nice to have Experience with Kubernetes (K8s) Experience with Kafka or other messaging systems Experience with CI/CD tools (e.g. Bamboo) Experience with AI coding assistants Experience with UI test automation Technologies you'll work with Backend: .NET 10 / C# Frontend: Angular 21, TypeScript Infrastructure: Docker, Kubernetes Database: MS SQL Server, Dapper Messaging: Kafka Tooling: Git, Jira, Bamboo, Confluence, Bitbucket 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 700 experienced experts . We create highly specialised teams for clients from all over the world. We offer team members developmental projects, a wide range of benefits and a proprietary professional development programme. Behind our maxim are also charitable and educational activities. We support pupils and students by donating learning equipment. We offer internships to help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We are a Polish company and we share what we have achieved over 15 years of activity . By supporting indigenous initiatives, we ensure the circulation of good energy.

🏢 Summary: Senior Frontend Developer with strong .NET background to design and build a financial web application (Economic Profitability Calculator) in an Agile environment. The role focuses on Angular-based frontend development with backend support in .NET, ensuring high code quality and CI/CD automation. Hybrid work model with close collaboration with Product Owner and domain experts. 🗂️ Requirements: 8+ years of experience with Angular, 5+ years of experience in web development (HTML, JavaScript, TypeScript, CSS), 3+ years of experience in .NET and C# web development, 3+ years of experience with SQL, 2+ years of experience with Docker and Kubernetes, Experience with CI/CD process automation, Experience working in Agile environment, English proficiency minimum B2 level 📃 Skills: Angular, TypeScript, HTML, JavaScript, CSS, .NET, C#, SQL, Docker, Kubernetes, MSSQL, Dapper, Git, JIRA, Bamboo, Confluence, Bitbucket 🏢 Description: Salary: 900 - 1200 PLN/day on B2B Work model: elastic hybrid from Gdynia / Gdańsk (at least 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 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 We are looking for a passionate developer with a strong focus on frontend development and a background in .NET to join the Economic Profitability Calculator Team of our financial sector client. You will play a valuable role in designing and building an EPC web application, working closely with Subject Matter Experts and having a real influence on the product. Responsibilities you'll have Designing and implementing EPC business processes with a strong focus on the frontend part Ensuring code quality through high test automation coverage, code reviews, and pair programming Working in an Agile setup Cooperating closely with the Product Owner and Subject Matter Experts Maintaining and extending CI/CD process automation Expected competences and knowledge 8+ years of experience with Angular 5+ years of experience in web development ( HTML, JavaScript, TypeScript, CSS ) 3+ years of experience in .NET and C# web development 3+ years of experience with SQL 2+ years of experience with Docker and Kubernetes Technology enthusiast focused on high product quality and good UX Passion for frontend development with experience in backend development Team-player mindset Willingness to continuously improve competences Good communication skills, including communication in English (min. B2 level) Nice to have Experience with UI test automation Experience with CI/CD tools (Bamboo) Experience using an AI coding assistant Technologies you'll work with Angular TypeScript HTML JavaScript CSS .NET C# Docker Kubernetes MS SQL Server Dapper Git Atlassian Stack (JIRA, Bamboo, Confluence, Bitbucket) 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 700 experienced experts . We create highly specialised teams for clients from all over the world. We offer team members developmental projects, a wide range of benefits and a proprietary professional development programme. Behind our maxim are also charitable and educational activities. We support pupils and students by donating learning equipment. We offer internships to help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We are a Polish company and we share what we have achieved over 15 years of activity . By supporting indigenous initiatives, we ensure the circulation of good energy.