Senior .NET WPF Developer (f/m/x)

🏢 Summary: Senior .NET/WPF Developer role focused on designing, developing, and maintaining advanced desktop applications in a hybrid work model. The position involves working with modern .NET technologies, reporting tools, and MS SQL Server, while collaborating with database teams and participating in client interactions. 🗂️ Requirements: 8+ years of experience with .NET technology stack, Strong expertise in WPF, .NET Framework 4.6+ proficiency, Strong knowledge of C#.NET, Experience with Unity Framework, Experience with Entity Framework 6, Experience with MS SQL Server, Experience with reporting tools: Crystal Reports, RDLC, Aspose, Excel, Proficiency with Visual Studio 2015/2017 Professional, Experience with SSDT, Fluent Polish and English, Availability for hybrid work (2–3 days onsite) 📃 Skills: WPF, .NET, C#, Unity, EntityFramework, MSSQL, CrystalReports, RDLC, Aspose, Excel, VisualStudio, SSDT 🏢 Description: Location: Łódź or Warsaw, Poland. Hybrid 2/3 days per week. Language Requirements: English & Polish About the Role: We are looking for an experienced Senior .NET/WPF Developer to join the team. This role involves developing and maintaining advanced desktop applications and contributing to high-quality software solutions. Key Responsibilities: Design, develop, and maintain desktop applications using WPF , .NET Framework 4.6+ , C#.NET , and Unity Framework . Work with Entity Framework 6 for database interactions. Develop, customize, and maintain reports using Crystal Reports , RDLC , Aspose , and MS Excel . Collaborate with database teams using MS SQL Server . Use Visual Studio 2015/2017 Professional and SSDT for development and database management. Participate in client interactions Requirements: 8+ years of experience with the technology stack listed above. Strong expertise in WPF, .NET Framework 4.6+, C#.NET, Unity Framework, Entity Framework 6 . Solid experience with MS SQL Server and reporting tools ( Crystal Reports, RDLC, Aspose, Excel ). Proficient with Visual Studio 2015/2017 Professional and SSDT . Fluent in Polish and English (both written and spoken). Ability to work 2–3 days per week onsite , and full-time during client visits (1 week) as required.

🏢 Summary: Senior .NET Developer role focused on building and enhancing a custom industrial application supporting end-to-end production and logistics processes. The position involves backend development in .NET, frontend development with Angular, and designing microservices-based solutions deployed in AWS. The project emphasizes scalability, traceability, and continuous product improvement. 🗂️ Requirements: Minimum 5 years of commercial experience as a .NET Developer, Strong hands-on experience with .NET in backend development, Practical experience with Angular in frontend development, Experience with microservices-based architecture, Experience with AWS cloud services 📃 Skills: .NET, Angular, AWS, Microservices 🏢 Description: We are looking for a Senior .NET Developer to join a long‑term product development project in the industrial and manufacturing domain. The role focuses on building and maintaining a custom‑built application that supports end‑to‑end production and logistics processes for industrial clients. The project uses modern technologies and follows an innovation‑driven approach, with strong emphasis on process traceability, scalability, and continuous improvement. Your tasks Develop and maintain backend solutions using .NET for a custom industrial application Implement new product functionalities according to business and process requirements Build and extend frontend features using Angular Design and develop solutions based on a microservices architecture Develop, deploy, and maintain solutions in an AWS cloud environment Requirements Minimum 5 years of commercial experience as a .NET Developer Strong hands‑on experience with .NET in backend development Practical experience with Angular in frontend development Experience working with microservices‑based architectures Experience working with AWS cloud services Fluency in English Residing in Poland required

🏢 Summary: Senior Software Engineer role focused on developing and maintaining C#/.NET desktop applications for manufacturing and testing systems, including GUI development and hardware integration. The position combines desktop software engineering with Python-based test automation and parallel execution support in complex technical environments. 🗂️ Requirements: Strong experience with C# and .NET, Experience in desktop application development, Experience with WPF and MVVM, Experience with hardware integration and instrument control, Experience integrating Python scripts with .NET applications, Knowledge of multithreading and thread safety, Ability to troubleshoot using logs and system traces 📃 Skills: C#, .NET, WPF, MVVM, Python, Multithreading, GUI, Desktop, Hardware, Automation 🏢 Description: We are looking for a Senior Software Engineer to join a team developing advanced desktop applications for manufacturing and testing environments. This role is a good fit for someone who has strong experience with C#/.NET, enjoys solving complex technical problems, and is interested in combining software development with Python based test automation and hardware integration. ✅ Your responsibilities: Develop and maintain C# / .NET desktop applications for manufacturing and testing systems Build GUI features using WPF / MVVM Work with hardware integration, instrument control and automated test execution Integrate Python-based test scripts into .NET applications Support parallel execution, thread safety and application stability Troubleshoot issues using logs, traces and system data 🧠 Our requirements: Develop and maintain C# / .NET desktop applications for manufacturing and testing systems Build GUI features using WPF / MVVM Work with hardware integration, instrument control and automated test execution Integrate Python-based test scripts into .NET applications Support parallel execution, thread safety and application stability Troubleshoot issues using logs, traces and system data 🌟 What we offer: Private healthcare Multisport Life insurance Real influence on technical decisions Opportunity to work on a modern AI / ML product platform

🏢 Summary: Senior Software Engineer role focused on developing and maintaining advanced C#/.NET desktop applications for manufacturing and testing environments. The position combines WPF/MVVM GUI development, hardware integration, and integration of Python-based test automation within .NET systems. It involves ensuring application stability, parallel execution, and troubleshooting complex technical issues. 🗂️ Requirements: Strong experience with C# and .NET, Experience developing desktop applications, Proficiency in WPF, Knowledge of MVVM pattern, Experience with hardware integration, Experience with instrument control, Experience with automated test execution, Ability to integrate Python scripts with .NET applications, Understanding of multithreading and thread safety, Ability to troubleshoot using logs and traces 📃 Skills: C#, .NET, WPF, MVVM, Python, Multithreading, Threading, GUI, Hardware, Automation 🏢 Description: We are looking for a Senior Software Engineer to join a team developing advanced desktop applications for manufacturing and testing environments. This role is a good fit for someone who has strong experience with C#/.NET, enjoys solving complex technical problems, and is interested in combining software development with Python based test automation and hardware integration. ✅ Your responsibilities: Develop and maintain C# / .NET desktop applications for manufacturing and testing systems Build GUI features using WPF / MVVM Work with hardware integration, instrument control and automated test execution Integrate Python-based test scripts into .NET applications Support parallel execution, thread safety and application stability Troubleshoot issues using logs, traces and system data 🧠 Our requirements: Develop and maintain C# / .NET desktop applications for manufacturing and testing systems Build GUI features using WPF / MVVM Work with hardware integration, instrument control and automated test execution Integrate Python-based test scripts into .NET applications Support parallel execution, thread safety and application stability Troubleshoot issues using logs, traces and system data 🌟 What we offer: Private healthcare Multisport Life insurance Real influence on technical decisions Opportunity to work on a modern AI / ML product platform

🏢 Summary: Senior .NET Developer role focused on building and enhancing distributed microservices for digital banking systems in a European financial environment. The position involves designing scalable, high-quality solutions using C# and .NET, implementing asynchronous communication, and ensuring robust automated testing practices. Remote-first model with collaboration on complex financial platforms. 🗂️ Requirements: 5+ years of experience in C# and .NET development, Strong experience with microservices architecture, Knowledge of CQRS, REST, OOP, EventSourcing, Experience with RabbitMQ or Kafka, Experience with NoSQL and relational databases, Experience with automated testing (unit, integration, contract), Knowledge of DomainDrivenDesign principles, Understanding of BPMS workflows, Experience with Git, Good command of Polish, Legal right to work in the EU 📃 Skills: C#, .NET, Microservices, CQRS, REST, OOP, EventSourcing, RabbitMQ, Kafka, Git, NoSQL, SQL, Docker, Testcontainers, Pact, DomainDrivenDesign, BPMS 🏢 Description: Unleash innovation — revolutionize financial systems with expert .NET development! Wroclaw-based opportunity with remote work model (5 remote days per week). As a Senior .NET Developer , you will be working for our client, a leading financial organization committed to transforming the digital banking experience. You’ll contribute to building and enhancing distributed microservices that enable seamless financial operations across Europe, driving innovation and operational excellence. Your main responsibilities: Develop and maintain scalable, high-quality microservices using C# and .NET technologies following Domain-Driven Design principles. Design and implement asynchronous communication patterns with RabbitMQ or Kafka to ensure system robustness. Collaborate with cross-functional teams to create automated tests, including unit, integration, and contract tests, utilizing Docker, Testcontainers, and Pact. Optimize code for performance, scalability, and reliability, adhering to Clean Code standards. Implement RESTful APIs and work with NoSQL and relational databases for effective data management. Contribute to the continuous improvement of development processes and best practices. Engage proactively in team collaboration, sharing knowledge and solving complex technical challenges. You're ideal for this role if you have: Minimum of 5 years of experience in C# and .NET development in a senior role. Understanding of workflows in BPMS platforms. Strong knowledge of microservices architecture, CQRS, REST, OOP, and Event Sourcing. Practical experience with asynchronous messaging (RabbitMQ/Kafka), Git, NoSQL databases, and relational databases. Familiarity with automated testing frameworks, including unit, integration, and contract testing. Good understanding of Domain-Driven Design (DDD) principles and clean code practices. Excellent team collaboration skills and a responsible, engaged work attitude. It is a strong plus if you have: Experience with Polish language communication skills. Knowledge of automated testing tools and frameworks. Language Required for the role: Polish: Good command Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior .NET Developer role focused on building and maintaining extended functionalities within a distributed, cloud-based system. The position involves working with modern .NET technologies, Angular, cloud platforms, and microservices architecture in an Agile/Scrum environment. The role requires close collaboration with stakeholders while applying clean code and best development practices. 🗂️ Requirements: Bachelor’s degree or Microsoft .NET certification, Strong experience with .NET and C#, Experience with ASP.NET Core and Web API, Experience with Angular (2+), Experience with Azure or AWS, Experience with microservices and distributed systems, Experience with PostgreSQL and SQL Server, Experience with database migrations, Experience with GitHub, Knowledge of SOLID and DRY principles, Fluent English (written and spoken) 📃 Skills: .NET, C#, ASP.NET, Angular, Azure, AWS, Microservices, Kafka, PostgreSQL, SQL, GitHub, WebAPI 🏢 Description: We are looking for a Senior .Net Developer . Responsibility: Develop and maintain extended functionalities Collaborate closely with internal and external consultants, as well as key business stakeholders Work with technologies including Angular (2+), Azure/AWS Cloud, and the .NET stack (.NET 8/9, ASP.NET Core, C#, Web API), along with microservices and distributed systems, Kafka (or similar messaging tools), and databases such as PostgreSQL and SQL Server Actively participate in daily stand-ups, sprint reviews, and planning sessions with Danish colleagues, contributing to continuous improvement of the Scrum process To succeed in this role, you: Hold a relevant bachelor’s degree or a Microsoft certification related to .NET Apply clean code principles and best practices such as SOLID and DRY, with a strong object-oriented mindset Have proven experience in Microsoft .NET (C#), GitHub, PostgreSQL, and database migrations Communicate fluently in English, both written and spoken

🏢 Summary: Development of professional medical software in C++ within a Scrum team, focused on designing and implementing complex system functionalities and integrations. The role involves building APIs, working with databases, integrating external systems, and ensuring high code quality in a Windows environment. The position requires strong ownership of technical solutions and contribution to architectural decisions. 🗂️ Requirements: Minimum 6 years of experience in C++ development or 2 years in senior role, Very good knowledge of C++17 or newer, Experience in Windows application development, Very good knowledge of SQL and PostgreSQL, Experience with SOAP Web Services, Knowledge of multithreaded programming, Ability to design normalized database schemas and understand indexing, Experience working with legacy code and safe refactoring, Knowledge of defensive programming, English level B2 or higher 📃 Skills: C++, SQL, PostgreSQL, Windows, SOAP, Multithreading, Refactoring, Legacy, Defensive, APIs 🏢 Description: Senior C++ Developer (F/M) O NAS: Tworzymy produkty dla branży medycznej, z których korzystają tysiące lekarzy i personelu medycznego w Polsce. Szukamy kolejnego członka zespołu rozwijającego profesjonalne oprogramowanie dla przychodni i gabinetów NFZ. Rozwijamy aplikację zespole Scrumowym, z naciskiem na jakość, przewidywalność i ciągłe dostarczanie wartości. System obsługuje złożone procesy medyczne i integruje się z wieloma systemami zewnętrznymi. Dużą wagę przykładamy do tego, aby dostarczane rozwiązania realnie działały u użytkowników i odpowiadały na ich potrzeby. Chcesz mieć wpływ na to, co robisz? Chcesz brać odpowiedzialność za rozwiązania i współtworzyć produkt, z którego korzystają ludzie, których znasz? Aplikuj do nas! ZA CO BĘDZIESZ ODPOWIEDZIALNY/A: Projektowanie i implementację funkcjonalności; Tworzenie API i komunikację z bazą danych; integrację z systemami zewnętrznymi; analizę i rozwiązywanie problemów technicznych; dbanie o jakość kodu (code review, testy); aktywny udział w decyzjach technicznych; wspieranie zespołu w podejmowaniu decyzji technicznych i dzielenie się wiedzą; współpracę QA i Product Ownerem. OCZEKIWANE UMIEJĘTNOŚCI: Szukamy osoby, która: Ma minimum 6 lat doświadczenia w tworzeniu aplikacji w C++ lub 2 lata na stanowisku seniora; Potrafi samodzielnie zaprojektować rozwiązanie dla złożonego problemu i rozbić je na etapy realizacji; Rozumie kontekst biznesowy rozwiązań i bierze odpowiedzialność za ich działanie w praktyce (nie tylko za implementację); Nie ogranicza się do realizacji zadań – interesuje się tym, czy rozwiązanie spełnia potrzeby użytkownika; Aktywnie identyfikuje problemy, proponuje rozwiązania i usprawnienia; Jasno się komunikuje i potrafi uzasadniać decyzje techniczne; Potrafi wspierać innych członków zespołu, dzielić się wiedzą i pomagać w podejmowaniu decyzji technicznych; Projektuje rozwiązania z myślą o utrzymywalności i rozwoju systemu; Zna język angielski na poziomie co najmniej B2. Wymagania techniczne: Bardzo dobra znajomość C++ 17 (lub nowszego); Doświadczenie z tworzeniem aplikacji dla systemu Windows; Bardzo dobra znajomość SQL (najlepiej w kontekście PostgreSQL); Umiejętność projektowania dobrych i znormalizowanych schematów baz danych, rozumienie indeksów; Doświadczenie z SOAP Web Services; Znajomość problematyki programowania wielowątkowego; Doświadczenie w pracy z kodem legacy, umiejętność bezpiecznego refaktoringu bez ryzyka regresji; Znajomość programowania defensywnego. Mile widziane: Wykształcenie wyższe techniczne (preferowane informatyczne); Znajomość języków Python, C#, Lua, HTML/Javascript; Doświadczenie z FastReport Studio; Znajomość metodologii Scrum. CO W ZAMIAN? Bezpośredni wpływ na rozwój produktu, mającego realny wpływ na codzienną pracę lekarzy i personelu medycznego; Realny wpływ na decyzje techniczne i architekturę systemu; Decyzyjność w zakresie realizacji zadań (narzędzia, podejście, implementacja); Pracę w środowisku stawiającym na jakość i pragmatyczne podejście do procesu; Elastyczne godziny pracy oraz możliwość pracy zdalnej; Regularną ewaluację jako element Twojego rozwoju; Możliwość udziału w szkoleniach i konferencjach; Opiekę medyczną (LuxMed) oraz karnet Benefit Multisport; Stabilne zatrudnienie w oparciu o B2B lub umowę o pracę.

🏢 Summary: Development role focused on designing and building complex desktop ERP applications in C#/.NET using a 3-tier architecture and MVVM pattern. The position involves full lifecycle development, architectural decision-making, code quality assurance, and collaboration in a Scrum team. The candidate will work on expanding and maintaining advanced business systems. 🗂️ Requirements: Commercial experience in C# and .NET, Experience with MVVM pattern and 3-tier architecture, Experience in desktop application development (WinForms or WPF), Knowledge of Oracle or PostgreSQL databases, Strong SQL skills, Experience with Git (branching, merge, Gitflow), Knowledge of APIs and web technologies, Understanding of OOP and design patterns, Experience with multithreading and asynchronous programming, Experience with CI/CD pipelines, Experience with unit testing 📃 Skills: C#, .NET, MVVM, WinForms, WPF, Oracle, PostgreSQL, SQL, Git, Gitflow, API, OOP, CI/CD, TDD, Scrum 🏢 Description: 💻 Mid / Senior C# / .NET Developer (Desktop / ERP) Szukamy doświadczonego developera C# / .NET, który ma realne doświadczenie w budowie aplikacji desktopowych w architekturze 3-warstwowej i wzorcu MVVM. Jeśli pracowałeś przy złożonych systemach (np. ERP) i lubisz mieć wpływ na architekturę — to rola dla Ciebie. 🚀 Twoja rola Projektowanie i rozwój aplikacji (od koncepcji po wdrożenie) Tworzenie nowych funkcjonalności i rozwój istniejących systemów Debugowanie i rozwiązywanie problemów Code review i dbanie o jakość kodu Tworzenie testów jednostkowych Współpraca w zespole Scrumowym Udział w decyzjach architektonicznych Dokumentacja techniczna i dzielenie się wiedzą 🧠 Kluczowe wymagania (must-have) C# / .NET – bardzo dobra znajomość + doświadczenie komercyjne Doświadczenie w MVVM + aplikacjach 3-warstwowych (WARUNEK KONIECZNY) Doświadczenie w aplikacjach desktopowych (WinForms / WPF) Znajomość baz danych (Oracle / PostgreSQL) + SQL Praca z GIT (branching, merge, Gitflow) Znajomość API i technologii webowych Zrozumienie: OOP, clean code, dobrych praktyk wielowątkowości, async, zarządzania pamięcią architektury aplikacji i wzorców projektowych Doświadczenie z CI/CD i testami (TDD mile widziane) ⭐ Mile widziane DevExpress (WinForms) Docker / konteneryzacja Doświadczenie w systemach ERP (kadry/płace/finanse) SCRUM + narzędzia (Jira, Confluence, Bitbucket) CQRS, DDD GitHub / portfolio 🎁 Co oferujemy Krótki, 14-dniowy termin płatności faktury Bogaty pakiet prywatnej opieki medycznej Dostęp do platformy kafeteryjnej MyBenefit ( m.in . Multisport, karty przedpłacone: Ikea, Zalando, Notino i inne)

🏢 Summary: Long-term remote role for a Senior .NET Developer with AI expertise to design and deliver AI-driven solutions within the Microsoft ecosystem. The position focuses on building and deploying AI agents in Microsoft Teams and integrating solutions with Azure AI and OpenAI services. The role covers end-to-end development, deployment, and production support of scalable intelligent systems. 🗂️ Requirements: Strong experience with C# and .NET, Proven experience building AI solutions in Microsoft ecosystem, Hands-on implementation of AI agents in Microsoft Teams, Experience with Azure AI, OpenAI, Cognitive Services, M365, Understanding of agent-based architecture and AI design patterns, Experience deploying and supporting production-grade solutions, Basic frontend experience with React or similar, Ability to work in English and Polish 📃 Skills: C#, .NET, Azure, OpenAI, CognitiveServices, M365, MicrosoftTeams, React, AI, AgentArchitecture 🏢 Description: We are looking for a Senior .NET Developer with AI experience to design and deliver cutting-edge solutions within the Microsoft ecosystem. This role is ideal for someone who combines strong backend engineering in C#/.NET with hands-on AI expertise , particularly in building and deploying AI agents Location: Remote Language: Polish and English Key Responsibilities Design and develop scalable AI-driven solutions using C# / .NET Build and deploy AI agents within Microsoft Teams (end-to-end ownership) Develop and implement agent-based architectures and intelligent systems Integrate solutions with Azure AI, OpenAI, and Microsoft services Deploy, monitor, and support solutions in production environments Collaborate with business and product teams to translate requirements into technical solutions Drive best practices in AI engineering, performance, and scalability Required Skills & Experience Strong experience as a .NET Developer (C#) – must-have Proven experience building AI solutions within Microsoft ecosystem Hands-on experience implementing AI agents in Microsoft Teams (critical requirement) Experience with Azure AI / OpenAI / Cognitive Services / M365 Understanding of agent-based architecture and AI design patterns Basic frontend experience ( React or similar ) Experience deploying and supporting production-grade solutions Strong problem-solving mindset and ability to work in fast-paced environments This is an long term project !!! If interested and available please send your CV for an immiediate consideration

🏢 Summary: Senior .NET Developer role focused on designing, extending, and modernising critical banking and securities systems in a fully remote B2B model. The position involves full-stack development, system integration, and cloud scaling within distributed, business-critical environments. The role requires close collaboration with business stakeholders and ownership of end-to-end application delivery. 🗂️ Requirements: 5+ years experience as .NET / C# Developer, Experience in banking or investment banking sector, Full-stack development experience, Knowledge of SOLID design principles, Experience with document-based databases, Experience with event-driven messaging frameworks, Experience with unit and integration testing, End-to-end application development experience, Ability to work during UK business hours, Based in Poland 📃 Skills: .NET, C#, MongoDB, SOLID, Messaging, UnitTesting, IntegrationTesting, Docker, Kubernetes, Cloud 🏢 Description: Work model: 100% remote (candidates must be based in Poland) Contract type: B2B Industry: Banking / Investment Banking We are looking for an experienced Senior .NET Developer to join a distributed engineering team working on critical banking systems. The role focuses on extending and modernising applications used across securities and banking operations, with a strong emphasis on system design, scalability, and cloud transformation. You will work end-to-end on business-critical systems, closely collaborating with Business Analysts, without a separate QA team. A solid background in banking or financial services is essential. Main Responsibilities: Design, develop, and extend .NET-based systems supporting multiple banking entities Contribute to the integration of securities and core banking platforms Support and enhance a portfolio of ~17 applications across product control and risk management Work with an in-house development framework in a full-stack capacity Participate in scaling applications for cloud-based, containerized environments Collaborate closely with business stakeholders to deliver robust solutions Ensure high code quality through unit and integration testing Key Requirements: 5+ years of professional experience as a .NET / C# Developer Hands-on experience in the banking or investment banking sector (mandatory) Full-stack development experience (backend-focused, frontend included) Strong understanding and practical application of SOLID design principles Experience with document-based databases (e.g. MongoDB) Experience with event-driven / event-based messaging frameworks Solid knowledge of unit and integration testing Experience working end-to-end on applications (development, testing, support) Ability to work independently in a fast-paced, regulated environment Availability during UK business hours Nice to Have: Experience with cloud platforms and application migration to cloud Experience with container technologies (e.g. Docker, Kubernetes) Exposure to systems such as Murex or large in-house banking platforms Background in securities, risk, or product control systems Other Details: This role is 100% remote with candidates required to be located in Poland. The contract is on a B2B basis within the banking and investment banking industry.