.NET Developer – 2nd Line Support (On-call / Standby)

🏢 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: Remote Full Stack .NET Developer role focused on building and maintaining enterprise-grade applications using Angular 20+ and ASP.NET Core (.NET 9+) within a Microsoft and Azure ecosystem. The position involves designing scalable solutions, integrating authentication and external systems, and deploying cloud-native applications using Docker, Kubernetes, and CI/CD pipelines. Long-term B2B project for EU citizens residing in Poland. 🗂️ Requirements: Strong commercial experience as Full Stack .NET Developer, Hands-on experience with Angular 20+, Very good knowledge of ASP.NET Core and modern .NET, Experience designing and developing RESTful APIs, Experience with Microsoft Azure services, Strong knowledge of Microsoft SQL Server, Experience with Entity Framework Core, Experience with Docker and containerized environments, Understanding of Kubernetes, Experience building and maintaining CI/CD pipelines, Strong SQL skills, Knowledge of authentication and authorization mechanisms including Azure AD, Experience in Agile environments, Very good English skills, EU citizenship, Residence in Poland 📃 Skills: Angular, ASP.NET, NET, C#, REST, Azure, MSAL, AzureAD, SQL, SQLServer, EntityFramework, Docker, Kubernetes, CI/CD, Vitest, xUnit, Moq, AzureDevOps 🏢 Description: In Cyclad, we work with top international IT companies in order to boost their potential in delivering outstanding, cutting-edge technologies that shape the world of the future. We are currently looking for an experienced Full Stack .NET Developer to join a remote international team delivering enterprise-grade applications using modern Microsoft and Angular technologies. In this role, you will be responsible for designing, developing, and maintaining scalable applications while collaborating closely with cross-functional teams in an agile environment. Project information: Type of project: It services Office Location: Poland Work mode: Remote from Poland Budget: 120-140 PLN net/ h- B2B Project length: Long term Only candidates with citizenship in the European Union and residence in Poland Start date: ASAP (depending on candidate’s availability) Project scope: Design and develop enterprise applications using Angular 20+ on the front end and ASP.NET Core (.NET 9+) on the back end Implement standalone components and signals-based architecture to build responsive and maintainable user interfaces Integrate Azure MSAL authentication, RESTful APIs, and external systems Build and optimize data access layers using Entity Framework Core and manage relational data in Microsoft SQL Server Ensure application security through authentication, authorization, and data protection mechanisms based on Azure Active Directory Deploy and manage application environments using Docker, Kubernetes, and CI/CD pipelines Develop and maintain comprehensive unit and integration tests for both front-end and back-end components using Vitest, xUnit, and Moq Collaborate with cross-functional teams to maintain shared libraries and continuously improve product functionality based on user feedback Troubleshoot, debug, and optimize applications to ensure scalability, reliability, and high performance Participate actively in code reviews by reviewing and approving Pull Requests from team members Document project progress, architectural decisions, and implementation outcomes using Azure DevOps Boards and Wiki Contribute to continuous improvement initiatives and promote development best practices across the team Competence demands: Strong commercial experience as a Full Stack .NET Developer Proven hands-on experience with Angular and .NET technologies Very good knowledge of ASP.NET Core and modern .NET development practices Experience designing and developing RESTful APIs Practical experience with Microsoft Azure services and cloud-native applications Strong knowledge of Microsoft SQL Server and relational database design Experience with Entity Framework Core Experience working with Docker and containerized environments Good understanding of Kubernetes and container orchestration Experience building and maintaining CI/CD pipelines Strong SQL skills and experience optimizing database queries Understanding of authentication and authorization mechanisms, including Azure AD integrations Experience working in Agile development environments Strong communication and collaboration skills Proactive approach, ownership mindset, and ability to independently lead feature implementations High attention to detail and commitment to code quality Very good English skills, both written and spoken We offer: Remote working model from Poland 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: Senior .NET (Web) role focused on development and maintenance of CRM systems with extended support coverage and after-hours monitoring. The position combines backend development in .NET with cloud-based solutions on AWS in a long-term, fully remote B2B engagement. The engineer will handle production issues, contribute to system improvements, and work closely with a US-based team. 🗂️ Requirements: Strong experience with .NET Web development, Experience with ASP.NET Web API, Hands-on experience with AWS services, Experience with SQL databases, Ability to handle production incidents and after-hours support, Experience with CI/CD pipelines, Very good English (written and spoken), Availability for flexible and weekend on-call schedule 📃 Skills: .NET, ASP.NET, AWS, CDK, Lambda, SQL, SQLServer, PostgreSQL, Kafka, Docker, GitHubActions, Terraform, DesignPatterns 🏢 Description: For one of our clients, we are looking for a Senior .NET (Web). Key Expectations: Availability to work in flexible after‑hours schedules, including some overlap with the US team (exact hours to be agreed individually). Weekend availability in a mixed monitoring/on‑call setup — final structure to be aligned with the candidate. Monitoring/on-call is not the main duty; the candidate must also contribute to regular development and maintenance tasks. Strong technical expertise and exceptional problem‑solving skills. Very good written and spoken English. Example schedule: Monday–Friday: 2 pm-9 pm Eastern -> 20:00–03:00 (CET/CEST) (active monitoring, distributed across shifts) Saturday: 9 am–5 pm ET (active monitoring), 5 pm–9 pm ET (on‑call for urgent escalations) Sunday: 9 am – 5 pm ET (on‑call) First onboarding month -9-17 PL Time Weekends after a few months of cooperations The final timetable will be adapted once the candidate is onboarded and aligned with the team’s needs. Tech Stack: .NET (Web), ASP.NET Web API AWS (CDK, Lambdas) SQL, SQL Server, PostgreSQL Kafka Docker GitHub Actions Terraform Design Patterns Responsibilities: Maintenance and development of existing CRM functionalities. Extending the support coverage window for the team. Handling after‑hours requests and urgent issues when needed. Working with modern cloud technologies in AWS. Offer: B2B contract (via Shimi) Rate up to: 170pln/h net+VAT 100% remote Start: ASAP Longterm cooperation

🏢 Summary: Long-term fully remote B2B contract for a .NET Developer focused on maintaining and developing applications based on .NET Framework 4.7 and WinForms. The role involves designing, optimizing, deploying, and supporting software solutions in production environments. The position emphasizes system improvement, code quality, and close collaboration within cross-functional teams. 🗂️ Requirements: Experience with .NET Framework (preferably 4.7), Experience with WinForms, Strong knowledge of SQL, Strong knowledge of Entity Framework, Experience in application deployment, Experience in production support, Ability to maintain and optimize existing systems, Experience in code refactoring and code quality improvement, Experience with technical documentation, Familiarity with Jira or similar issue-tracking tools, Strong debugging skills 📃 Skills: .NET, WinForms, SQL, EntityFramework, Jira, Debugging, Refactoring 🏢 Description: We are looking for a .NET Developer : Key Details: Long-term B2B contract (140–170 PLN/hour) Fully remote work Tech stack: .NET Framework (mainly 4.7), WinForms, SQL, Entity Framework Requirements: Experience with .NET Framework (preferably version 4.7) and WinForms Strong knowledge of SQL and Entity Framework Ability to design and develop software solutions aligned with user needs Experience with deploying applications and supporting them in production environments Skills in maintaining, improving, and optimizing existing systems (performance, security, functionality) Ability to collaborate effectively with cross-functional teams (engineers, designers, analysts, Product Managers) Experience in writing and maintaining technical documentation Familiarity with Jira or similar tools for tracking issues and feedback Experience with refactoring code and improving code quality Willingness to share knowledge and support team development Strong debugging and problem-solving skills to ensure application stability and reliability

🏢 Summary: Long-term remote contract for a Senior .NET Web Developer combining system development, maintenance, and flexible after-hours/weekend support for a CRM system built on AWS. The role focuses primarily on coding and maintaining existing functionalities, with additional monitoring and on-call duties aligned with US team hours. The position requires night shifts and weekend availability after the onboarding period. 🗂️ Requirements: Senior-level experience in .NET Web development, Strong experience with ASP.NET Web API, Experience with AWS (CDK, Lambda), Experience with SQL databases (SQL Server, PostgreSQL), Experience with Kafka, Experience with Docker, Experience with GitHub Actions, Experience with Terraform, Knowledge of design patterns, Fluent English (minimum B2), Availability for night shifts and weekend on-call support 📃 Skills: .NET, ASP.NET, WebAPI, AWS, CDK, Lambda, SQL, SQLServer, PostgreSQL, Kafka, Docker, GitHubActions, Terraform, DesignPatterns 🏢 Description: Senior .NET (Web) Developer (Night Shifts & Support) Dla naszego Klienta poszukujemy doświadczonego Senior .NET Developer do pracy w modelu łączącym rozwój oprogramowania, utrzymanie oraz elastyczne wsparcie po godzinach / w weekendy. Kluczowe informacje o projekcie: Start: ASAP (od zaraz) Długość współpracy: Kontrakt 12+ miesięcy (długofalowa współpraca) Model pracy: Maintenance + Development + Flexible after-hours/weekend support Lokalizacja: 100% zdalnie Tech Stack .NET (Web), ASP.NET Web API AWS (CDK, Lambdas) SQL, SQL Server, PostgreSQL Kafka Docker GitHub Actions Terraform Design Patterns (Wzorce projektowe) Model pracy i kluczowe oczekiwania Elastyczny grafik po godzinach: Gotowość do pracy w niestandardowych godzinach, w tym częściowe pokrycie czasu pracy z zespołem z USA (dokładne godziny do ustalenia indywidualnie). Dostępność weekendowa: Praca w weekendy w mieszanym systemie monitoringu oraz dyżurów (on-call) – ostateczna struktura zostanie dopasowana wspólnie z wybranym kandydatem. Rozwój systemu to podstawa: Monitoring i dyżury (on-call) nie są Twoim głównym obowiązkiem. Do Twoich kluczowych zadań należeć będzie regularne pisanie kodu (development) oraz utrzymanie systemu (maintenance). Przykładowy grafik: Poniedziałek – Piątek: 20:00 – 03:00 czasu polskiego (odpowiednik 2 pm – 9 pm ET) – aktywny monitoring rozłożony w ramach zmian zespołu. Sobota: 15:00 – 23:00 czasu polskiego (9 am – 5 pm ET): aktywny monitoring, 23:00 – 03:00 czasu polskiego (5 pm – 9 pm ET): dyżur pod telefonem (on-call) na wypadek pilnych awarii. Niedziela: 15:00 – 23:00 czasu polskiego (9 am – 5 pm ET): dyżur pod telefonem (on-call). *Pierwszy miesiąc wdrożenia (onboarding) odbywa się w standardowych godzinach: 9:00 – 17:00 czasu polskiego. Dostępność weekendowa wchodzi w życie dopiero po kilku miesiącach współpracy. Uwaga: Ostateczny harmonogram zostanie dostosowany i elastycznie dopasowany do potrzeb Twoich oraz zespołu po zakończeniu okresu wdrożenia. Twoje zadania Rozwój oraz bieżące utrzymanie istniejących funkcjonalności w systemie CRM. Rozszerzenie okna wsparcia technicznego dla systemów Klienta. Obsługa zgłoszeń po godzinach (after-hours) oraz szybkie reagowanie na krytyczne i pilne awarie (urgent issues). Praca z nowoczesną architekturą chmurową opartą o AWS. Wymagania i oczekiwania Bardzo dobra znajomość języka angielskiego (minimum B2) – warunek konieczny (płynna komunikacja w mowie i piśmie, codzienna współpraca z zespołem z USA). Silne kompetencje techniczne (Senior level) i wyjątkowe umiejętności rozwiązywania problemów (problem-solving). Gotowość do pracy w elastycznych godzinach popołudniowych/nocnych oraz w wybrane weekendy (zgodnie z ustalonym grafikiem).

🏢 Summary: 100% remote B2B opportunity to lead a development team in building and maintaining scalable applications within an agile environment. The role combines hands-on full-stack development with strategic technical leadership, focusing on robust system architecture and faster delivery of new solutions. Long-term cooperation with a two-stage recruitment process including a technical test. 🗂️ Requirements: Proficiency in .NET, Proficiency in C#, Experience in full-stack development, Experience with front-end technologies, Experience with document-based databases, Knowledge of event-based messaging frameworks, Experience with cloud services, Experience with containerization, Ability to lead development teams, Experience working in agile environment 📃 Skills: .NET, C#, Angular, MongoDB, Cloud, Docker, Microservices, REST, Git 🏢 Description: Work model: 100% remote Start date: Flexible Rate: up to 215 PLN/h netto + VAT Contract : B2B, long-term cooperation (12-month contract up front + extensions) Recruitment process : 2 stages, including a technical test estimated to take 2-4 hours. Summary: The role focuses on leading the development team to create new solutions and maintain systems within an agile environment, emphasizing the importance of robust applications and strategic direction. Main Responsibilities: Lead the development team in creating and maintaining applications. Adopt wider technology practices and address the speed of new application delivery. Engage in hands-on development while guiding the strategic direction of projects. Collaborate with teams to gather specifications and perform technical analysis. Navigate complex systems and ensure they are built to scale. Manage developer quality and capacity amidst organizational constraints. Key Requirements: Proficient in .NET and C#. Experience with full-stack development, including front-end technologies. Familiarity with document-based databases. Knowledge of event-based messaging frameworks. Experience with cloud services and containerization. Nice to Have: Prior experience in the banking or financial services sector. Familiarity with Angular or other modern front-end frameworks. Experience with MongoDB or similar environments. Other Details: Environment: .NET, C#, Angular, MongoDB, moving towards cloud solutions. Team Structure: Full Stack Developers working closely with Business Analysts.

🏢 Summary: Mid-Level Fullstack .NET Developer role focused on building and maintaining scalable, microservice-based web applications in the online banking domain. The position involves developing REST APIs, implementing automated testing, and contributing to CI/CD processes within a hybrid work model. You will work with modern .NET and Angular technologies to deliver high-quality, robust 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, Hands-on experience with Docker and Kubernetes, Experience with automated testing (unit and E2E), Knowledge of SOLID principles and design patterns, Experience with MS SQL and PostgreSQL, Familiarity with CI/CD pipelines and SSDLC, Experience with Git-based version control, Good command of Polish, Legal right to work in the EU 📃 Skills: C#, .NET, Angular, REST, Microservices, Docker, Kubernetes, MSSQL, PostgreSQL, Git, Jenkins, TeamCity, JIRA, CI/CD, SSDLC 🏢 Description: Ignite the future of digital innovation — shape powerful, scalable systems with cutting-edge technologies! Warsaw-based opportunity with hybrid work model (2 days in the office / month). As a Mid-Level Fullstack .NET Developer , you will be working for our client, a leader in the online banking 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. Hands-on experience with Docker and Kubernetes. Experience with automated testing, SOLID principles, 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) Experience with cloud platforms like Azure or AWS. Certifications in microservices or cloud technologies. Language required for the role: Good command of 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: Fully remote .NET Developer role focused on designing and developing modern backend systems based on microservices architecture. The position involves building scalable REST APIs, implementing event-driven solutions, and deploying cloud-native applications on Microsoft Azure using containerized environments. The role also includes working with enterprise integrations, security standards, and database optimization within Agile teams. 🗂️ Requirements: Experience with .NET Core and .NET 8/9, Experience with ASP.NET Core, Experience in microservices architecture, Experience building RESTful APIs, Experience with Apache Kafka, Experience with Docker and Kubernetes, Experience with Microsoft Azure cloud services, Knowledge of OAuth 2.0 and OpenID Connect, Experience with SQL Server and Oracle, Knowledge of event-driven architecture, Experience with container orchestration and Helm, Understanding of SOLID principles and design patterns 📃 Skills: .NET, ASP.NET, Kafka, Docker, Kubernetes, OpenShift, Helm, Azure, SQL, Oracle, OAuth2, OIDC, TLS, AzureAD, REST 🏢 Description: Job Description We are looking for an experienced .NET Developer to design and develop modern backend solutions based on microservices architecture. The role is fully remote in Poland. Responsibilities: Design and develop microservices using .NET (Core / 8/9) and ASP.NET Core Build scalable RESTful APIs and backend services Implement event-driven architecture using Apache Kafka Deploy and maintain applications in containerized environments using Docker, Kubernetes, OpenShift, and Helm Design cloud-native solutions leveraging Microsoft Azure services Integrate applications with enterprise systems and external data sources Apply SOLID principles and modern design patterns Implement security standards including OAuth 2.0, OpenID Connect (OIDC), TLS, and Azure AD (Entra ID) Work with SQL Server and Oracle databases , including performance optimization Conduct code reviews and mentor junior developers Collaborate within Agile development teams Tech Stack: .NET Core / .NET 8/9 ASP.NET Core Apache Kafka Docker, Kubernetes, OpenShift, Helm Microsoft Azure (cloud-native services) SQL Server, Oracle OAuth 2.0, OpenID Connect, Azure AD (Entra ID) REST APIs, microservices architecture

🏢 Summary: Senior .NET (Web) Developer role combining development and maintenance of a CRM system with flexible after-hours and weekend support in a 100% remote model. The position involves working with AWS-based cloud architecture and collaborating with a US team during overlapping hours. Long-term contract focused primarily on coding and system enhancement, with additional on-call responsibilities. 🗂️ Requirements: Senior-level experience in .NET web development, Experience with ASP.NET Web API, Experience with AWS cloud services, Experience with SQL databases, Ability to work flexible evening/night hours, Availability for weekend on-call support, English proficiency at minimum B2 level, Strong problem-solving skills 📃 Skills: .NET, ASP.NET, WebAPI, AWS, CDK, Lambda, SQL, SQLServer, PostgreSQL, Kafka, Docker, GitHubActions, Terraform, DesignPatterns 🏢 Description: co.brick talents — powered by AI, powered by people. Senior .NET (Web) Developer (Night Shifts & Support) Dla naszego Klienta poszukujemy doświadczonego Senior .NET Developer do pracy w modelu łączącym rozwój oprogramowania, utrzymanie oraz elastyczne wsparcie po godzinach / w weekendy. Kluczowe informacje o projekcie: Start: ASAP (od zaraz) Długość współpracy: Kontrakt 12+ miesięcy (długofalowa współpraca) Model pracy: Maintenance + Development + Flexible after-hours/weekend support Lokalizacja: 100% zdalnie Tech Stack .NET (Web), ASP.NET Web API AWS (CDK, Lambdas) SQL, SQL Server, PostgreSQL Kafka Docker GitHub Actions Terraform Design Patterns (Wzorce projektowe) Model pracy i kluczowe oczekiwania Elastyczny grafik po godzinach: Gotowość do pracy w niestandardowych godzinach, w tym częściowe pokrycie czasu pracy z zespołem z USA (dokładne godziny do ustalenia indywidualnie). Dostępność weekendowa: Praca w weekendy w mieszanym systemie monitoringu oraz dyżurów (on-call) – ostateczna struktura zostanie dopasowana wspólnie z wybranym kandydatem. Rozwój systemu to podstawa: Monitoring i dyżury (on-call) nie są Twoim głównym obowiązkiem. Do Twoich kluczowych zadań należeć będzie regularne pisanie kodu (development) oraz utrzymanie systemu (maintenance). Przykładowy grafik: Poniedziałek – Piątek: 20:00 – 03:00 czasu polskiego (odpowiednik 2 pm – 9 pm ET) – aktywny monitoring rozłożony w ramach zmian zespołu. Sobota: 15:00 – 23:00 czasu polskiego (9 am – 5 pm ET): aktywny monitoring, 23:00 – 03:00 czasu polskiego (5 pm – 9 pm ET): dyżur pod telefonem (on-call) na wypadek pilnych awarii. Niedziela: 15:00 – 23:00 czasu polskiego (9 am – 5 pm ET): dyżur pod telefonem (on-call). *Pierwszy miesiąc wdrożenia (onboarding) odbywa się w standardowych godzinach: 9:00 – 17:00 czasu polskiego. Dostępność weekendowa wchodzi w życie dopiero po kilku miesiącach współpracy. Uwaga: Ostateczny harmonogram zostanie dostosowany i elastycznie dopasowany do potrzeb Twoich oraz zespołu po zakończeniu okresu wdrożenia. Twoje zadania Rozwój oraz bieżące utrzymanie istniejących funkcjonalności w systemie CRM. Rozszerzenie okna wsparcia technicznego dla systemów Klienta. Obsługa zgłoszeń po godzinach (after-hours) oraz szybkie reagowanie na krytyczne i pilne awarie (urgent issues). Praca z nowoczesną architekturą chmurową opartą o AWS. Wymagania i oczekiwania Bardzo dobra znajomość języka angielskiego (minimum B2) – warunek konieczny (płynna komunikacja w mowie i piśmie, codzienna współpraca z zespołem z USA). Silne kompetencje techniczne (Senior level) i wyjątkowe umiejętności rozwiązywania problemów (problem-solving). Gotowość do pracy w elastycznych godzinach popołudniowych/nocnych oraz w wybrane weekendy (zgodnie z ustalonym grafikiem).

🏢 Summary: Full-time B2B contract for a .NET Developer to maintain and enhance an existing self-service portal based on legacy ASP.NET Web Forms. The role focuses on stabilizing, hosting, and gradually developing new features in a poorly documented codebase. The project runs until the end of 2026 with possible extensions and is fully remote. 🗂️ Requirements: Proficiency in ASP.NET Web Forms and classic .NET, Experience with IIS hosting and configuration, Strong understanding of legacy authentication methods, Ability to work with and stabilize poorly documented codebases, Experience maintaining and supporting existing web applications 📃 Skills: ASP.NET, WebForms, .NET, IIS, Authentication, SQL, T-SQL, MS SQL 🏢 Description: Industry: debt collection Remote work: 100% Project language: English FTE: full-time (if you're interested in part-time, it's also ok) Project length: until the end of 2026 + prolongations Start: ASAP Assignment type: B2B Remuneration: up to 180 PLN/h Job Summary: The .NET Developer will be primarily responsible for maintaining and developing an existing self-service portal used by customers and clients, which incorporates legacy code as well as newer components. Responsibilities: Maintain and stabilize an existing ASP.NET application, ensuring uptime and functionality. Perform IIS hosting and configuration for the application. Understand legacy authentication patterns to facilitate secure access. Work with poorly documented codebases, improving clarity and stability. Periodically develop new features as required by the project. Must Haves: Proficient in ASP.NET Web Forms / classic .NET technology (e.g., client_login.aspx). Experience with IIS hosting and configuration. Strong understanding of legacy authentication methods. Ability to read and stabilize poorly documented codebases. Nice to Have: Familiarity with newer development practices and components (e.g., ASP.NET MVC Core). Experience with MS SQL, including queries and stored procedures. Knowledge of application maintenance workflows.