Intern - C# / .NET

🏢 Summary: The role involves developing and maintaining international .NET applications for industry-leading thermal imaging software. You will build new components, enhance existing ones, ensure code quality, and create unit and integration tests. The position offers hands-on experience with modern .NET technologies in a hybrid work model. 🗂️ Requirements: Minimum 1 year professional experience as C#/.NET developer, Practical knowledge of C# and .NET, Experience with .NET Framework 4.7, Experience with .NET 8, Ability to write unit and integration tests, Fluency in English (min. B2) 📃 Skills: C#, .NET, NETFramework, .NET8, WPF, EntityFrameworkCore, ASP.NETCore, Blazor, WebAPI, JavaScript 🏢 Description: Are you a .NET/C# developer with at least 1 year of professional full-time working experience? Would you like to gain experience working on international projects? Join the SENSE Software team! We are producing industry-leading software for thermographers and cooperating closely with nr 1 manufacturer of thermal cameras. Must haves: Minimum 1 year of experience as a C#/.NET developer Practical knowledge of C#/.NET: .NET Framework 4.7, .NET 8 The ability to think analytically and creatively Fluency in English (min. B2) Personal culture and ability to work in a team Nice to have: WPF; Entity Framework Core; ASP.NET Core: Blazor, Web API; JavaScript; With us you will: Work on international .NET projects Write new components as well as improve existing ones Cooperate with our PM Take care of the quality of the source code Create unit and integration tests Prepare technical documentation What do we offer? Employment based on a contract of your choice Hybrid work – 3 days in the office, 2 days from home The opportunity to raise professional qualifications and gain experience Participation in ongoing activities and co-creation of new projects Office in the center of Sopot

🏢 Summary: Junior .NET/C# Developer role focused on building and enhancing components in international projects related to thermal imaging and AI-driven solutions. The position involves developing, testing, and maintaining .NET applications while contributing to high-quality, production-grade software. 🗂️ Requirements: Minimum 6 months of professional experience as a software developer, Practical knowledge of C#, Practical knowledge of .NET, English proficiency at B2 level or higher 📃 Skills: C#, .NET, Blazor, WPF, JavaScript 🏢 Description: Are you a .NET/C# developer with at least 6 months of professional working experience? Would you like to gain experience working on international projects? Join the SENSE Software team! We are a leader in thermal imaging software development. Our products are used in electrical and building inspections, manufacturing, automation and drone applications. Among our clients is the world leader in manufacturing of thermal imaging cameras. We have vast experience with AI vision in thermal, especially in drone imagery. What do we offer? Employment based on a contract of your choice The opportunity to raise professional qualifications and gain experience Participation in ongoing activities and co-creation of our projects Hybrid work – 3 days in the office, 2 days from home Office in the center of Sopot Requirements: Minimum 6 months of experience as a software developer Practical knowledge of C#/.NET The ability to think analytically and creatively Fluency in English (min. B2) Personal culture and ability to work in a team Nice to have: Blazor, WPF and Javascript; Scope of responsibilities : Work on international .NET projects Write new components as well as improve existing ones Cooperate with our PM Take care of the quality of the source code Create unit and integration tests Prepare technical documentation

🏢 Summary: Development of scalable, cloud-native applications using C#/.NET in a microservices architecture on Microsoft Azure. The role focuses on building high-performance, containerized systems, ensuring quality through CI/CD practices, and optimizing performance in modern cloud environments. Position requires strong engineering expertise and experience in travel-related solutions. 🗂️ Requirements: 5+ years experience with C# and .NET, 3+ years experience developing travel-related solutions, Experience with modern cloud architectures, Expertise in Microsoft Azure, Experience with containerized applications, Experience with SQL and NoSQL databases, Strong knowledge of microservices architecture, Understanding of API design principles, Knowledge of clean architecture and SOLID principles, Experience with CI/CD practices 📃 Skills: C#, .NET, Azure, SQL, NoSQL, Microservices, Containers, APIs, CI/CD, SOLID 🏢 Description: Our Client is a rapidly growing European technology company developing advanced digital solutions used by thousands of customers worldwide. The organization focuses on building scalable platforms and innovative products that support operational efficiency and business growth. Their engineering teams work in modern cloud environments and emphasize quality, user experience, and continuous delivery. The company operates internationally and continuously invests in product development and technology excellence. 📍 Location: Warsaw - once per week in the office 🚀 Your responsibilities Develop clean, scalable code using C# / .NET in microservices architecture and cloud-native environments Test and deploy systems and applications on Microsoft Azure Monitor and optimize system performance , identifying and resolving issues proactively Act as a technical expert for the system and support other internal teams Work in an Agile squad , with strong focus on user experience, quality assurance, and CI/CD practices Contribute to the engineering culture by sharing knowledge and applying best practices Work on projects that directly impact the company’s growth and product development 🎯 Our requirements 5+ years of professional experience in software development using C# / .NET and modern cloud architectures 3+ years of experience developing travel-related solutions Strong understanding of core software engineering principles and API design Proven expertise in building and managing high-performance containerized applications on Microsoft Azure Experience designing and managing SQL and NoSQL databases Deep understanding of microservices architecture, clean code, clean architecture, and SOLID principles Professional English proficiency ⭐ Nice to have Working knowledge of Angular / AngularJS Familiarity with AI tools supporting development workflows Experience working in Agile / Scrum environments Thank you for all applications. We will contact selected candidates. TQLO Sp. z o.o. – Employment Agency (KRAZ 33580)

🏢 Summary: Senior .NET Developer role focused on designing and maintaining high-performance backend services using .NET and Azure for a scalable electronic components platform. The position involves building resilient cloud solutions, setting up test automation from scratch, and leveraging AI coding assistants in daily development. This is a 100% remote role requiring close collaboration with a US-based Agile team. 🗂️ Requirements: Minimum 8 years of professional experience in .NET development, Strong experience with C#, Experience with Azure cloud ecosystem, Experience with CosmosDB, Practical experience using AI tools in software development, Fluent English, Availability to attend meetings between 17:00 and 19:00 CET, Residence in Poland or eligibility to work in Poland 📃 Skills: .NET, C#, Azure, CosmosDB, Playwright, Selenium, GitHubCopilot, ChatGPT, Cursor, CI/CD, Git, TypeScript, JavaScript 🏢 Description: Join us as Senior .NET Developer We are part of an international organization listed on Nasdaq Stockholm, operating in 11 countries. In Poland, we work with full autonomy. We independently choose our technologies, processes, and ways of working while maintaining the highest professional standards. We deliver a wide range of IT projects in Poland and internationally, across multiple domains and technologies. This allows our consultants to develop their competencies and gain experience aligned with their professional ambitions. Our collaboration is built around the CARE philosophy. For us, it means responsible project matching, transparent cooperation, and a long-term approach to professional growth. Your responsibilities Designing, developing, and maintaining high-performance back-end services using .NET and C# for an established, scalable system used for selecting electronic components and integrating with manufacturer databases. Working extensively with Azure cloud services and CosmosDB to build, maintain, and monitor resilient solutions. Setting up test automation structures and frameworks from scratch using tools like Playwright or Selenium. Actively leveraging AI coding assistants such as GitHub Copilot, ChatGPT, or Cursor to enhance productivity and troubleshooting, while proactively sharing AI-assisted development practices with the team. Collaborating directly with the US-based team in an Agile environment, actively participating in code reviews, sprint planning, and architectural discussions. Communicating with business stakeholders to understand requirements and translate them into effective technical solutions. Requirements Minimum 8 years of professional experience in .NET development, demonstrating a senior-level mindset and problem-solving capabilities. Experience with C#, the Azure cloud ecosystem, and CosmosDB. Practical experience in using modern AI tools in daily software development and a willingness to promote these practices. Fluency in English to ensure seamless communication with US managers and developers. Flexibility to align with US working hours, specifically attending daily meetings between 17:00 and 19:00 CET. You need to live in Poland and/or be eligible to work here. Nice to have: Background or interest in Electrical Engineering. General understanding of testing practices, CI/CD pipelines, and Git version control. Knowledge in TypeScript or JavaScript. What we offer 100% remote work Work in a Scandinavian culture built on logic and dialogue. Health and sports benefits tailored to your needs. Speed Coaching – short sessions that provide new perspectives and solutions. Sports training, an internal team, and opportunities to take part in competitions. Team events and development-focused meetups.

🏢 Summary: Offer for a .NET Developer to design and implement C#/.NET functionality and build a UI for an internal industrial automation tool, collaborating with firmware teams. The role emphasizes clean code practices and active participation in Scrum-based development. Remote B2B cooperation with competitive hourly rate. 🗂️ Requirements: 2-3 years of commercial or open-source software development experience, Proficiency in C# and .NET, Experience with UI development, Knowledge of data structures, Understanding of object-oriented design, Knowledge of design patterns, Experience working in Scrum/Agile, English level B2 minimum 📃 Skills: C#, .NET, Angular, TypeScript, Scrum, Agile, OOP, UI, Git 🏢 Description: For a company in the industrial automation sector we are looking for a person for the position of .NET Developer who will cooperate with firmware teams. Key responsibilities Designing and implementing functionality using .NET / C# for application Creating and developing the user interface (UI) for an internal company tool Ensuring high code quality (clean code, code reviews, refactoring) Participating in the software development process in accordance with Scrum / Agile, including Scrum ceremonies (daily meetings, sprint planning) Ideal candidate profile 2-3 years of experience in development of commercial or open-source software (preferably experience in the industrial automation sector) Required programming languages: C# (.NET) Optional programming languages: Angular/TypeScript are a plus Experience working with data structures, object-oriented design and design patterns Agile software development using Scrum Very good knowledge of English, minimum level B2 Conditions Location: Katowice Working mode: remote Form of cooperation: B2B Salary: 100-125 PLN / h Benefits: private medical care, life insurance, Multisport Recruitment Steps Initial call with a recruiter (20 min) Interview with the manager (90 min) Decision and feedback

🏢 Summary: The role involves designing, developing, and maintaining applications on the .NET platform, including building new solutions and optimizing existing systems. It focuses on delivering high-quality, secure, and scalable software aligned with business needs in an international environment. The position requires active participation in architecture design, performance optimization, and continuous integration and deployment processes. 🗂️ Requirements: Minimum 3 years of experience in .NET development, Knowledge of MVC, Knowledge of REST API, Experience in team-based software development, Strong knowledge of MS SQL, Strong knowledge of ElasticSearch, Experience with Continuous Integration tools, Experience with Continuous Delivery approach, Knowledge of unit testing, Knowledge of integration testing, Very good command of English 📃 Skills: .NET, MVC, REST, MS SQL, ElasticSearch, Git, TeamCity, CI, CD, UnitTesting, IntegrationTesting 🏢 Description: Your responsibilities Design, create and maintain applications using the .NET platform and environment Understand requirements and transform them into functional applications in line with business objectives Maintain and upgrade existing applications and fix issues Rewriting/making changes in existing code structure to increase efficiency and performance Ensure error-free code that adheres to best coding practices Test, monitor, and make better solutions through incremental updates/new features/app optimization Identify bottlenecks and address issues to ensure the best performance Create architecture, specifications, and user interfaces of .Net applications Innovate and build high-quality software solutions leveraging the versatility of the .NET platform Implement best practices and methodologies for security, quality, and development approach Our requirements Min. 3 years of experience in working in the .NET environment; Knowledge of MVC, Rest API; Experience in team software development; Good knowledge of MS SQL and ElasticSearch; Using Continuous Integration tools (Git,Team City) and the Continuous Delivery approach; Knowledge of unit and integration tests; Very good command of the English language (work as part of an international team); Optional Knowledge of Umbraco, Angular, AWS This is how we work on a project Clean Code code quality measures code review design patterns static code analysis Continuous Deployment Continuous Integration Development opportunities we offer conferences abroad conferences in Poland development budget external training industry-specific e-learning platforms intracompany training mentoring soft skills training space for experimenting substantive support from technological leaders support of IT events technical knowledge exchange within the company the company supports open source projects time for development of your ideas What we offer Opportunities for constant development and work on exciting projects, Working in an international environment, English lessons, Attractive remuneration in Euro, Flexible working hours, Fully or partially paid training and development. Benefits sharing the costs of sports activities sharing the costs of foreign language classes sharing the costs of professional training & courses remote work opportunities flexible working time integration events corporate gym corporate sports team corporate library no dress code coffee / tea drinks parking space for employees leisure zone sharing the costs of tourist services sharing the costs of tickets to the movies, theater employee referral program charity initiatives family picnics

🏢 Summary: Development of an innovative web platform for the financial industry using C# and modern web technologies. The role involves designing, building, and enhancing product features with .NET Core, React.js, and SQL databases. The position offers real impact on product evolution through hands-on technical contribution. 🗂️ Requirements: Minimum 5 years of experience in object-oriented programming, Solid experience in C# and .NET Core development, Experience in building web applications using MVC framework, Hands-on experience with SQL databases, Working knowledge of React.js, Practical experience with Entity Framework 📃 Skills: C#, .NET, .NETCore, MVC, SQL, MSSQL, Oracle, React, EntityFramework, OOP 🏢 Description: We are looking for a skilled C# Developer to join our team working on an innovative web platform for the financial industry . If you enjoy working with modern technologies like .NET Core, Azure, and React.js/Angular , and want to be part of a collaborative team. We’d love to hear from you! Your role As a C# Developer , you will work alongside experienced engineers, contributing to the development of new product features and enhancing existing ones. You’ll have a direct impact on the product's evolution, with the freedom to bring in your own ideas and solutions. Offer A real opportunity to make an impact — we truly value ideas and suggestions from the team, and we encourage you to bring them to life, Attractive salary and the chance to work with modern technologies, Occasional international travel (mainly to London, UK), A modern office in the center of Wrocław. Requirements Minimum 5 years of experience in object-oriented programming, Solid experience in designing, coding, and debugging in C# / .NET Core , Experience in building web applications using the MVC framework , Hands-on experience with SQL databases (e.g., MS SQL, Oracle), Working knowledge of React.js , or Angular Practical understanding of Entity Framework , Strong communication skills in English (both written and spoken) and the ability to collaborate effectively in a team, Proactive attitude, enthusiasm, and a results-driven mindset — we’re looking for people who love learning and using new technologies to build great products. Nice to have: Familiarity with design patterns , Experience with CSS frameworks (e.g., Bootstrap), Knowledge of Microsoft Azure , Understanding of CI/CD processes , including automated deployments with Azure DevOps.

🏢 Summary: C# Developer role focused on building and enhancing a modern web platform for the financial industry using .NET Core, React, and cloud technologies. The position involves developing new features, maintaining existing functionality, and contributing to architectural decisions within a collaborative engineering team. The offer includes impactful product work with modern tech stack and international collaboration. 🗂️ Requirements: Minimum 5 years of experience in object-oriented programming, Strong experience with C#, Commercial experience with DotNetCore, Experience building web applications using MVC, Hands-on experience with SQL databases, Experience with MSSQL or Oracle, Working knowledge of React, Practical experience with EntityFramework 📃 Skills: C#, DotNetCore, MVC, SQL, MSSQL, Oracle, React, EntityFramework, Azure, AzureDevOps, CICD, OOP 🏢 Description: We are looking for a skilled C# Developer to join our team working on an innovative web platform for the financial industry . If you enjoy working with modern technologies like .NET Core, Azure, and React.js , and want to be part of a collaborative team. We’d love to hear from you! Your role As a C# Developer , you will work alongside experienced engineers, contributing to the development of new product features and enhancing existing ones. You’ll have a direct impact on the product's evolution, with the freedom to bring in your own ideas and solutions. Offer A real opportunity to make an impact — we truly value ideas and suggestions from the team, and we encourage you to bring them to life, Attractive salary and the chance to work with modern technologies , Occasional international travel (mainly to London, UK), A modern office in the center of Wrocław . Requirements Minimum 5 years of experience in object-oriented programming, Solid experience in designing, coding, and debugging in C# / .NET Core , Experience in building web applications using the MVC framework , Hands-on experience with SQL databases (e.g., MS SQL, Oracle), Working knowledge of React.js , Practical understanding of Entity Framework , Strong communication skills in English (both written and spoken) and the ability to collaborate effectively in a team, Proactive attitude, enthusiasm , and a results-driven mindset — we’re looking for people who love learning and using new technologies to build great products. Nice to have: Familiarity with design patterns , Experience with CSS frameworks (e.g., Bootstrap), Knowledge of Microsoft Azure , Understanding of CI/CD processes , including automated deployments with Azure DevOps.

🏢 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 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.