.Net Developer (desktop apps)

🏢 Summary: 12-month remote contract for a .NET Developer in the e-commerce/FinTech domain, focused on building and developing scalable .NET solutions and integrations with external systems. The role involves designing and maintaining high-quality REST services and applications, working in an Agile team. The project emphasizes performance, stability, and continuous development of existing and new functionalities. 🗂️ Requirements: Minimum 5 years of experience as .NET Developer, Very good knowledge of C# (version 9+), Strong experience with .NET Core and ASP.NET, Experience in building REST API and service applications, Good knowledge of SQL and relational databases, Basic knowledge of NoSQL databases (e.g. MongoDB), Knowledge of OOP, SOLID principles and design patterns, Focus on code quality, refactoring and best programming practices 📃 Skills: C#, .NET, .NETCore, ASP.NET, REST, SQL, MongoDB, NoSQL, OOP, SOLID 🏢 Description: Dla naszego klienta z branży e-commerce poszukujemy osoby na stanowisko .Net Developer. Preferowane doświadczenie w obszarze FinTech . Model pracy: praca zdalna Czas trwania: 12 msc (z możliwością przedłużenia) Zakres obowiązków Tworzenie i rozwój rozwiązań w obszarze .NET, w tym integracji z systemami zewnętrznymi (partnerzy, Fintech) Projektowanie skalowalnych i stabilnych aplikacji oraz dbanie o ich jakość i wydajność Utrzymanie i rozwój istniejących serwisów oraz budowa nowych funkcjonalności Monitorowanie działania systemów, definiowanie metryk oraz udział w dyżurach (ok. raz na 10 dni, przez 48h) Współpraca z zespołem (PM, designerzy, developerzy) przy planowaniu i realizacji zadań Udział w spotkaniach Agile (planowanie, daily, refining, demo) Oczekiwania Min. 5 lat doświadczenia na stanowisku .Net Developer Bardzo dobra znajomość C# (min. wersja 9+) oraz platformy .NET Core / ASP.NET Doświadczenie w budowie REST API i aplikacji usługowych Dobra znajomość SQL i relacyjnych baz danych (modelowanie danych, złożone zapytania) Podstawowa znajomość NoSQL (np. MongoDB) Znajomość zasad OOP, SOLID oraz wzorców projektowych Dbałość o jakość kodu, refaktoryzację i dobre praktyki programistyczne Mile widziane: Doświadczenie z chmurą (Azure, GCP) Znajomość Kubernetes i CI/CD (np. GitHub Actions) Oferujemy Stałe wsparcie osobistego agenta , dbającego o Twoją ciągłość projektową, kontakt z klientem, niezbędne formalności, komfort pracy oraz rozwój, Consultant Development Program – doradztwo w planowaniu kariery w oparciu o najnowsze trendy i potrzeby rynku IT, obejmujące m.in . konsultacje z agentami i mentorami kariery , Dostęp do 7N Learning & Development – platformy rozwojowo-edukacyjnej z webinarami, biblioteką artykułów i raportów branżowych oraz regularnymi zaproszeniami na jednorazowe i cykliczne wydarzenia rozwojowe – techniczne, biznesowe oraz life-stylowe, Spektakularne eventy integracyjne , zarówno dla Ciebie (np. coroczny wyjazd Kick-Off , imprezy świąteczne czy sportowe Letnie Igrzyska), jak i dla Twoich bliskich (np. pikniki rodzinne, premiery filmowe), Rozwój zawodowy nie tylko podczas projektu – możesz zaangażować się w przekazywanie wiedzy innym w ramach oferty 7N Services kierowanej do klientów 7N, Relacje i dostęp do wiedzy najbardziej doświadczonych ekspertów IT na rynku – średni staż zawodowy naszego Konsultanta w Polsce to ponad 10 lat. Pakiet benefitów zaplanowany od A do Z , czyli dofinansowanie do opieki medycznej, ubezpieczenia na życie, karty sportowej dla Ciebie i Twoich bliskich, a także zniżki do sklepów w Polsce i za granicą O 7N Ciągłe poszukiwanie projektów, trudne negocjacje stawek, brak wsparcia w rozwoju – brzmi znajomo? W 7N zyskujesz nie tylko stabilność kontraktów, ale też zaangażowanie osobistego opiekuna dbającego o Twój komfort zawodowy i stały dostęp do inicjatyw rozwojowych. Naszym celem jest zapewnienie Ci stabilnej i komfortowej współpracy, która przyczyni się do sukcesu Twojego jako eksperta IT oraz naszych klientów. Budujemy trwałe relacje, bazując na skandynawskich wartościach i 30-letnim doświadczeniu w tworzeniu rozwiązań IT dla ponad 200 organizacji.

🏢 Summary: Remote Senior Android Developer role in the logistics industry focused on building and maintaining complex mobile applications through Kotlin and modern Android practices. The project runs until the end of 2026 with possible extension and includes responsibilities such as code reviews, mentoring, architecture design, testing, and CI/CD processes. The position emphasizes high code quality, scalability, and collaboration within an experienced development team. 🗂️ Requirements: 5+ years of Android development experience, Strong Kotlin expertise, Experience designing complex mobile applications, Experience with code reviews and pair programming, Mentoring experience, Knowledge of MVVM, Knowledge of Clean Architecture, Knowledge of SOLID principles, Experience with automated testing, Experience with CI/CD, Experience managing release processes, Knowledge of Git, Understanding of Material Design and UI/UX best practices, Advanced English (B2+) 📃 Skills: Android, Kotlin, MVVM, CI/CD, Git, SOLID, Material, UI/UX 🏢 Description: About the Project We are looking for Senior Android Developer to join a project from logistics industry . Work Mode: remote Start of the project: ASAP Duration of the project: till the end of December 2026, with an option to extend Job Responsibilities Take part in code reviews and pair programming to uphold high code quality while consistently applying industry standards and best practices Lead and promote continuous improvements within the team Support and mentor junior team members, helping them strengthen their skills and deepen their understanding of best practices Improve and optimize existing code to enhance its quality, performance, maintainability, and scalability Evaluate and interpret user requirements and business goals to effectively steer the development process and define project direction Assist in creating and maintaining thorough project documentation Provide ongoing maintenance and support for software applications, resolving issues in a timely manner Develop and implement automated tests to ensure reliability and proper functionality of the code Expectations Min. 5 years of experience Strong, hands-on experience with Android development and deep knowledge of the Kotlin programming language, including modern Android development tools and best practices Proven experience designing and architecting complex mobile applications Hands-on experience with code reviews, pair programming, and mentoring other developers Strong knowledge of mobile software architecture patterns, including MVVM, Clean Architecture, and SOLID principles A strong advocate of automated testing and test-driven practices Experience with Continuous Integration and Continuous Deployment (CI/CD) , as well as managing release processes . Solid understanding of Git version control Good grasp of UI/UX best practices and Material Design guidelines English on an advanced level (min. B2) We offer Ongoing support from a dedicated agent , taking care of your project continuity, client contact, necessary formalities, work comfort and development Consultant Development Program – advice on growth planning based on the latest trends and market needs in IT, including consultations with agents and growth mentors Access to 7N Learning & Development – a development and educational platform with webinars, a library of articles and industry reports, and regular invitations to one-time and recurring development events – technical, business, and lifestyle Spectacular integration events , both for you (e.g., annual Kick-Off trip , Christmas parties, or Summer Olympics sports events) and for your loved ones (e.g., family picnics, movie premieres) Professional development not only during the project – you can get involved in knowledge transfer to others within the 7N Services offering directed at 7N clients Relationships and access to the knowledge of the most experienced IT experts in the market – the average professional tenure of our consultants in Poland is over 10 years A complete benefits package , including funding for medical care, life insurance, sports cards for you and your loved ones, as well as discounts in stores in Poland and abroad About 7N Constantly searching for projects, difficult rate negotiations, lack of development support – sounds familiar? At 7N, you gain not only stability of contracts but also the personal involvement of a dedicated agent who ensures your professional comfort and continuous access to development initiatives. Our mission is to provide stable and rewarding collaborations that drive your success as an IT expert and the success of our clients. We build long-lasting relationships based on Scandinavian values and 30 years of experience creating IT solutions for over 200 organizations.

🏢 Summary: Mid/Senior .NET Developer role focused on designing and developing modern web and enterprise backend systems in a microservices architecture. The position involves building and maintaining APIs, working with databases, implementing tests, and supporting CI/CD and containerized environments. Opportunity to contribute to system architecture, refactoring, and .NET migrations in an Agile setup. 🗂️ Requirements: Minimum 4 years experience with .NET (C#), Experience with .NET Core / .NET 8+ and ASP.NET, Experience with Entity Framework, Experience with MSSQL, MySQL, PostgreSQL or MongoDB, Ability to design and implement microservices, Experience building REST and/or GraphQL APIs, Experience with Docker and Kubernetes, Experience with CI/CD pipelines, Experience with Git and Azure DevOps, Knowledge of Agile/Scrum, Ability to write unit and integration tests, English level B2/C1 📃 Skills: C#, .NET, .NETCore, .NET8, ASP.NET, EntityFramework, MSSQL, MySQL, PostgreSQL, MongoDB, REST, GraphQL, Docker, Kubernetes, CICD, Git, AzureDevOps, Jira, Agile, Scrum 🏢 Description: .NET Developer (mid/senior) – 4+ lata doświadczenia Opis stanowiska Do naszego zespołu poszukujemy doświadczonego .NET Developera , który będzie uczestniczyć w tworzeniu i rozwijaniu nowoczesnych aplikacji webowych i systemów enterprise. Jeśli masz pasję do pisania czystego, skalowalnego kodu, doświadczenie w pracy z mikroserwisami i chcesz wpływać na kierunek projektów – to stanowisko jest dla Ciebie. Zakres obowiązków Projektowanie, rozwój i utrzymanie aplikacji backendowych w .NET (C#). Tworzenie i konsumowanie RESTful i/lub GraphQL API. Budowa i utrzymanie mikroserwisów. Współpraca z zespołem frontendowym (React/Angular/Vue) w celu implementacji funkcjonalności full-stack. Udział w projektowaniu architektury systemów, refaktoryzacji oraz migracji do nowszych wersji .NET. Tworzenie i utrzymywanie testów jednostkowych, integracyjnych i e2e. Wsparcie procesów CI/CD i DevOps (Docker, Kubernetes, Azure/AWS). Dokumentowanie rozwiązań i współpraca w metodykach Agile/Scrum. Wymagania Minimum 4 lata doświadczenia w pracy z .NET (C#). Znajomość .NET Core / .NET 8+ , ASP.NET, Entity Framework. Doświadczenie z bazami danych : MSSQL, MySQL, PostgreSQL, MongoDB. Umiejętność projektowania i implementacji mikroserwisów . Znajomość REST i/lub GraphQL API . Doświadczenie w pracy z Dockerem, Kubernetes, CI/CD . Znajomość systemów kolejkowych (RabbitMQ, Kafka – mile widziane). Doświadczenie w pracy z frameworkami frontendowymi (React, Angular, Vue) – plus. Znajomość metodologii Agile/Scrum i narzędzi typu Jira, Git, Azure DevOps . Umiejętność pisania testów jednostkowych i integracyjnych. Dobra znajomość języka angielskiego (min. B2/C1). Mile widziane Doświadczenie w tworzeniu systemów rozproszonych i chmurowych . Znajomość DDD (Domain-Driven Design) . Umiejętność mentorowania młodszych programistów. Oferujemy Stabilne zatrudnienie w dynamicznie rozwijającej się firmie SaaS. B2B lub UoP, możliwość pracy w 100% zdalnej. Pracę w międzynarodowym zespole ekspertów. Możliwość rozwoju kompetencji w obszarze chmury, mikroserwisów i nowoczesnych technologii. Elastyczne godziny pracy i możliwość pracy zdalnej. Budżet szkoleniowy i wsparcie w certyfikacjach.

🏢 Summary: Senior .NET Developer role focused on building and evolving ATS systems with strong emphasis on architecture, distributed systems, and AI‑assisted engineering. The position combines hands‑on backend development with architectural ownership, promoting responsible and effective use of AI tools in daily development. You will design scalable, secure, and production‑ready systems aligned with real business processes. 🗂️ Requirements: 10+ years experience in backend or distributed systems development, Strong architectural design experience, Hands-on experience with .NET backend development, Experience designing modular monoliths and microservices, Experience with event-driven architectures, Experience integrating external systems with resiliency patterns, Knowledge of DDD, Knowledge of OAuth2 and JWT, Experience ensuring system reliability and scalability, Active use of AI tools in software development, Fluent English (C1+) 📃 Skills: .NET, C#, Microservices, DistributedSystems, EventDriven, DDD, OAuth2, JWT, REST, AI, Architecture, Observability, Scalability, Reliability, Microservices, ModularMonolith 🏢 Description: We are looking for an experienced .NET Developer to join our team working on ATS products for the 7N Group . You will play a key role in building and evolving systems that support real recruitment and business processes at scale. This role goes beyond hands‑on development. We’re looking for someone who will act as an AI advocate within the development team — a person who not only believes in the future of AI‑assisted software engineering, but also understands how to use AI tools effectively, responsibly, and pragmatically in day‑to‑day engineering and architectural work. You will help shape how AI is adopted across the team: accelerating development, improving design quality, and raising engineering standards — while keeping human judgment and accountability at the center. Tasks Use AI tools to accelerate architecture exploration, prototyping, and boilerplate creation Critically evaluate AI‑generated code , especially for distributed‑systems edge cases Own architectural decisions and guide system evolution Design and evolve modular monoliths and microservices , including event‑driven architectures Build reliable integrations with external systems (retries, circuit breakers, versioning) Apply DDD to align system architecture with real business processes Design secure‑by‑default systems (OAuth2, JWT, managed identities, rate limiting) Ensure production readiness through observability and ownership of incidents Expectations 10+ years of experience building backend and/or distributed systems Strong architectural mindset with hands‑on engineering experience Fluent++ English , with the ability and willingness to discuss complex technical topics Actively coding with AI tools and confident they represent the future of software engineering Deep understanding of system reliability, scalability, and failure modes High degree of ownership, self‑motivation, and proactivity in solving problems We offer Consultant Development Program – advice on growth planning based on the latest trends and market needs in IT, including consultations with agents and growth mentors, Access to 7N Learning & Development – a development and educational platform with webinars, a library of articles and industry reports, and regular invitations to one-time and recurring development events – technical, business, and lifestyle, Spectacular integration events, both for you (e.g., Admin and Christmas parties, or Summer Olympics sports events) and for your loved ones (e.g., family picnics, movie premieres), Professional development not only during the project – you can get involved in knowledge transfer to others within the 7N Services offering directed at 7N clients, Relationships and access to the knowledge of the most experienced IT experts in the market – the average professional tenure of our consultants in Poland is over 10 years, A complete benefits package, including funding for medical care, life insurance, sports cards for you and your loved ones, as well as discounts in stores in Poland and abroad. Consultant Development Program – advice on growth planning based on the latest trends and market needs in IT, including consultations with agents and growth mentors,

🏢 Summary: Mid-Level .NET Developer role focused on building and enhancing large-scale core banking systems in a hybrid work model. The position involves developing new functionalities, improving existing applications, and ensuring high quality through automated testing within a digital banking environment. 🗂️ Requirements: Minimum 3 years of software development experience, Experience in financial technology sector, Proficiency in C#, Proficiency in .NET and .NET Core, Experience with MS SQL, Experience with PostgreSQL, Understanding of object-oriented programming, Knowledge of design patterns, Experience with Docker, Experience with Kubernetes, Knowledge of automated testing, Familiarity with SOLID principles, Communicative Polish proficiency, Legal right to work in the European Union 📃 Skills: C#, .NET, .NETCore, MSSQL, PostgreSQL, OOP, SOLID, Docker, Kubernetes, Agile 🏢 Description: Ignite the future of digital banking — develop innovative solutions that transform financial services! Warszawa-based opportunity with hybrid work model (2 days in the office / 4 days remote per week). As a Mid-Level .NET Developer , you will be working for our client, a leading player in the online banking sector dedicated to developing and maintaining large-scale financial systems that support daily digital banking operations. Join a forward-thinking team building solutions that shape the future of financial services, offering exciting opportunities for growth and innovation. Your main responsibilities: Implement new functionalities and system improvements in applications developed in the .NET environment. Participate in development work within projects related to the core banking system. Develop and maintain automated tests to ensure high-quality solutions. Collaborate with analysts and business users to support requirements analysis and clarification. Participate in internal software testing and verification processes. Create and update technical and functional documentation for developed solutions. Support the development team in maintaining system stability and performance. You're ideal for this role if you have: At least 3 years of experience in software development, preferably within the financial technology sector. Good knowledge of C#, .NET, .NET Core. Experience with MS SQL and PostgreSQL. Understanding of object-oriented programming principles and design patterns. Hands-on experience with Docker and Kubernetes. Knowledge of automated testing techniques. Ability to work effectively in a team environment. Strong communication skills and attention to detail. Good organizational skills and the ability to quickly learn new technologies. Proficiency in working with technical documentation in English. Familiarity with software development best practices (e.g., SOLID). It is a strong plus if you have: Knowledge of Agile methodologies. Language Required for the role: Communicative Polish proficiency. 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: Mid-Level .NET Developer role focused on building and maintaining online banking applications in a hybrid work model. The position involves developing scalable financial systems, integrating APIs, and ensuring high code quality in an Agile environment. You will contribute to digital transformation initiatives within modern fintech projects. 🗂️ Requirements: Minimum 3 years of experience with C# and .NET (Core, 5/6, Framework), Strong experience with MSSQL, Experience implementing REST APIs, Experience writing unit tests using xUnit and xRay, Knowledge of message queuing systems (RabbitMQ or Kafka), Knowledge of OOP and SOLID principles, Basic knowledge of Kubernetes and Docker, Experience with CI/CD tools, Familiarity with Agile/Scrum methodology, Communicative English proficiency, Legal right to work in the European Union 📃 Skills: C#, .NET, .NETCore, .NET5, .NET6, .NETFramework, MSSQL, REST, xUnit, xRay, RabbitMQ, Kafka, Kubernetes, Docker, OOP, SOLID, CICD, Bitbucket, JIRA, TeamCity, Agile, Scrum 🏢 Description: Unleash Innovation in Financial Technology — Shape the Future of Online Banking! Łódź-based opportunity with a hybrid work model (2 days in the office per month) As a Mid-Level .NET Developer , you will be working for our client, a leader in online banking, on cutting-edge financial technology projects designed to enhance user experience and system efficiency. Join a fast-paced environment where your expertise drives digital transformation and financial innovation. Your main responsibilities: Develop and maintain applications using C#, .NET Core Implement and integrate RESTful APIs Write unit tests to ensure code quality Follow and apply design patterns and best practices such as OOP and SOLID Work with MSSQL databases Collaborate with cross-functional teams using tools like Bitbucket, JIRA, and TeamCity Participate in Agile/Scrum meetings and contribute to sprint planning and review Troubleshoot and resolve complex technical issues You're ideal for this role if you have: At least 3 years of experience with C#, .NET Core, .NET 5/6, or .NET Framework Solid experience with MSSQL Basic knowledge of Kubernetes and Docker Experience in implementing REST APIs Proficiency in writing unit tests with xUnit and xRay Experience with message queuing systems (e.g., RabbitMQ, Kafka) Knowledge of design patterns and best practices (OOP, SOLID) Familiarity with Agile/Scrum methodologies Proficiency with CI/CD tools Strong problem-solving skills and attention to detail It is a strong plus if you have: (optional) Basic knowledge of COBOL Knowledge of WCF, WinForms Language required for the role: Communicative proficiency in English Communicative proficiency in Polish Eligibility to work in Europe: 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: Long-term remote B2B opportunity for an experienced .NET Developer to build and maintain cloud-native applications using modern Microsoft technologies in an international Agile team. The role focuses on developing REST APIs, microservices, and Azure-based solutions with strong emphasis on scalability, security, and CI/CD practices. 🗂️ Requirements: 3 to 5+ years of professional experience in .NET development, Strong knowledge of .NET 10, Strong knowledge of C#, Strong knowledge of ASP.NET Core, Experience building REST APIs, Experience building microservices, Experience with Microsoft SQL Server, Experience with Microsoft Azure services, Experience with Azure Kubernetes Service, Experience with Azure Functions, Experience implementing CI/CD pipelines using Azure DevOps, Familiarity with GitHub Copilot, Experience working in Agile/Scrum environments, Very good English skills, EU citizenship, Residence in Poland, Location in Wrocław 📃 Skills: .NET, C#, ASP.NET, REST, Microservices, SQL, Azure, AKS, AzureFunctions, AzureDevOps, GitHub, Copilot, Docker, Kubernetes 🏢 Description: At Cyclad, we work with top international IT companies to help them deliver cutting-edge technologies that shape the future. We are currently looking for an experienced .NET Developer to join an international team responsible for developing and maintaining modern cloud-native applications. In this role, you will contribute to building scalable, secure, and high-performance solutions using the latest Microsoft technologies while collaborating with international teams in an Agile environment. Project information: Type of project: It services Office location: Wrocław, Poland (candidate must be located in Wrocław) Work mode: Remote Budget: 90–120 PLN net/hour – B2B Project length: Long-term Only candidates with citizenship in the European Union and residence in Poland Start date: ASAP (depending on the candidate's availability) Project scope: Develop and maintain cloud-native applications using .NET 10, ASP.NET Core, and C# Build, develop, and maintain REST APIs and microservices Deploy and support applications running on Azure Kubernetes Service (AKS) and Azure Functions Design, optimize, and maintain Microsoft SQL Server databases Implement and improve CI/CD pipelines using Azure DevOps Leverage GitHub Copilot to increase development productivity Collaborate with cross-functional teams in an Agile/Scrum environment Ensure application performance, scalability, security, and reliability Participate in code reviews and contribute to software engineering best practices Competence demands: 3 to 5+ years of professional experience in .NET development Strong knowledge of .NET 10, C#, and ASP.NET Core Hands-on experience building REST APIs and microservices Experience working with Microsoft SQL Server Practical experience with Microsoft Azure services, including AKS and Azure Functions Experience implementing CI/CD pipelines using Azure DevOps Familiarity with GitHub Copilot Experience working in Agile/Scrum environments Strong analytical and problem-solving skills Good communication skills and ability to work effectively within distributed teams Very good English skills Nice to have: Experience with Docker and Kubernetes Experience developing cloud-native applications Knowledge of modern DevOps practices We offer: Fully remote working model Full-time job agreement based on B2B Private medical care with dental care (covering 70% of costs) Multisport card (also for an accompanying person) Life insurance Recruitment process: Introductory call Technical interview Final decision

🏢 Summary: The offer is for a Senior .NET Developer with 5+ years of experience to design, develop, and maintain scalable backend applications using modern .NET technologies. The role focuses on building high-quality APIs, contributing to architectural decisions, and ensuring application reliability in cloud-based environments. It involves close collaboration with cross-functional teams and strong engagement in testing, CI/CD, and production support. 🗂️ Requirements: Minimum 5 years of experience with .NET development, Strong experience with C# and .NET Core, Solid understanding of REST APIs, Experience with Entity Framework Core, Strong knowledge of SQL, Experience with cloud platforms (Azure or AWS), Experience with CI/CD pipelines, Experience with Git version control, Experience with unit and integration testing, Experience with message broker systems, Familiarity with agile development practices 📃 Skills: C#, .NET, .NETCore, REST, EntityFramework, SQL, Azure, AWS, CI/CD, Git, UnitTesting, IntegrationTesting, MessageBroker, Angular, Docker, Kubernetes, Microservices 🏢 Description: Summary: We’re looking for a highly skilled .NET Developer with a minimum of 5 years of experience. This role focuses on solving complex problems, building high-quality software, and contributing to a collaborative engineering culture. The candidate should be passionate about clean architecture, modern .NET development, and delivering impactful solutions. Responsibilities: Analyze, design, develop, and maintain applications using .NET / .NET Core. Build scalable backend services (APIs). Collaborate with cross-functional teams (Business, Dev, Infra, etc.). Participate in code reviews to elevate engineering standards. Contribute to architectural decisions and technical roadmaps. Provide business support and monitor applications (level 2 support, incident resolution, and troubleshooting). Key Requirements: Strong experience with C# and .NET Core. Solid understanding of REST APIs, Entity Framework Core, and SQL. Familiarity with cloud platforms (Azure or AWS). Experience with CI/CD pipelines and version control (Git). Strong testing culture: unit tests, integration tests, and production validation. Familiarity with agile development practices. A mindset focused on quality, performance, and maintainability. Experience with a message broker. Nice to Have: Knowledge of microservices architecture. Experience with front-end frameworks (Angular). Background in distributed systems or high-availability environments. Knowledge of Docker & Kubernetes. Experience with Azure functions. Other Details: This position allows for flexibility and may accommodate remote work arrangements. Candidates should be prepared for collaborative team engagements with a focus on delivering high-quality software solutions.

🏢 Summary: Mid-Level Fullstack .NET Developer role focused on building and maintaining scalable web applications within a microservices architecture. The position involves developing robust REST APIs, implementing automated testing, and contributing to CI/CD processes in a hybrid work model. You will work with modern .NET and Angular technologies to deliver high-quality, enterprise-grade systems. 🗂️ Requirements: Minimum 3 years of full stack development experience, Strong knowledge of C# and .NET Core, Practical experience with Angular, Experience with REST API development, Experience with microservice architecture, Experience with automated testing (unit, E2E), Knowledge of SOLID principles and design patterns, Experience with Docker and Kubernetes, Experience with MSSQL and PostgreSQL, Experience with CI/CD pipelines and related tools, Familiarity with JIRA, TeamCity, Jenkins, git, Communicative Polish, Legal right to work in the EU 📃 Skills: C#, .NET, Angular, REST, Microservices, Docker, Kubernetes, MSSQL, PostgreSQL, Git, Jenkins, TeamCity, JIRA, CI/CD, SOLID 🏢 Description: Ignite the Future of Digital Innovation — Shape Powerful, Scalable Systems with Cutting-Edge Technologies! Warszawa-based opportunity with hybrid work model (up to 4 days remote per week). As a Mid-Level Fullstack .NET Developer , you will be working for our client, a forward-thinking leader in the software industry dedicated to delivering innovative solutions. Your expertise will contribute to designing and implementing robust, microservice-based systems, empowering businesses to thrive in a digital landscape. Join us and be part of a dynamic environment where your skills fuel impactful projects and career growth. Your main responsibilities: Develop and maintain scalable web applications using .NET Core, C#, and Angular. Write automated unit and E2E tests to ensure high-quality deliverables. Apply SOLID principles, design patterns, IoC, and DI to create maintainable code. Design and implement REST APIs within microservice architecture. Collaborate with cross-functional teams utilizing JIRA, TeamCity, Jenkins, and version control systems like git/bitbucket. Support and optimize database interactions with MSSQL and PostgreSQL. Participate in continuous integration and delivery processes (SSDLC, CI/CD tools). You're ideal for this role if you have: Minimum of 3 years of professional experience in full stack development. Practical knowledge of C#, .NET Core, Angular. Experience with Docker and Kubernetes. Experience with automated testing, SOLID, design patterns, and REST API development. Familiarity with MS SQL, PostgreSQL, and microservice architecture. Knowledge of SSDLC, CI/CD pipelines, and tools such as JIRA, TeamCity, Jenkins, and git. It is a strong plus if you have: (optional) Certifications in cloud technologies or microservice architectures. Language Required for the role: Polish (Communicative level) 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 in English or Polish, along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: The offer is for a .NET Developer responsible for building and enhancing scalable backend systems and REST APIs for global travel platforms. The role involves contributing to architecture, optimizing performance, and collaborating in an agile environment to deliver reliable, high-quality software. It includes hybrid work, international projects, and professional development opportunities. 🗂️ Requirements: Minimum 3 years of commercial experience with .NET development, Strong knowledge of ASP.NET MVC, Experience developing REST APIs, Experience working in agile software development teams, Good knowledge of MS SQL, Good knowledge of Elasticsearch, Experience with CI/CD tools (Git, TeamCity or similar), Experience writing unit and integration tests, Ability to write clean, maintainable, and well-tested code, Very good English communication skills 📃 Skills: .NET, ASP.NET, MVC, REST, MS SQL, Elasticsearch, Git, TeamCity, CI/CD, UnitTesting, IntegrationTesting, Umbraco, Angular, AWS 🏢 Description: We are looking for a .NET Developer to join our team and help build scalable, high-quality solutions that power our global travel platforms. In this role, you will work on the development and enhancement of backend systems, contribute to architectural decisions, and collaborate with cross-functional teams to deliver reliable and efficient software used by customers worldwide. Your responsibilities Design, develop, and maintain applications using .NET technologies Translate business requirements into scalable and maintainable technical solutions Develop and enhance REST APIs and backend services Maintain, troubleshoot, and improve existing applications Refactor and optimize code to improve performance, scalability, and maintainability Write clean, well-structured, and testable code following best practices Participate in code reviews and contribute to improving development standards Identify and resolve performance bottlenecks and system issues Contribute to application architecture, technical design, and system documentation Collaborate closely with developers, QA engineers, Product Owners, and other stakeholders in an agile environment Our requirements At least 3 years of commercial experience with .NET development Strong knowledge of ASP.NET MVC and REST APIs Experience working within agile software development teams Good knowledge of MS SQL and Elasticsearch Experience with CI/CD tools and practices (Git, TeamCity or similar) Experience writing unit and integration tests Ability to write clean, maintainable, and well-tested code Very good English communication skills Nice to have Experience with Umbraco CMS Experience with Angular Knowledge of AWS services and cloud-based solutions How we work Clean Code principles Design patterns and software engineering best practices Code reviews and knowledge sharing Static code analysis Continuous Integration and Continuous Deployment (CI/CD) Agile and collaborative development environment What we offer Hybrid work model (1–2 days per week in our Katowice office) Opportunity to work on international, large-scale projects Attractive remuneration paid in EUR Flexible working hours Individual development budget Partially or fully funded training and certifications English lessons Mentoring and support from experienced technical leaders Participation in conferences in Poland and abroad A culture focused on learning, collaboration, and knowledge sharing Space to innovate and bring your own ideas to life Support for IT community initiatives