We are looking for a Senior C# / .NET Developer who's eager to embark on an exciting new opportunity! About KWAN We connect IT professionals with projects that match their skills, professional experience, and goals, then we offer a career progression program, delivered by in‐house specialists - our People Experience Partners - to guide them through our journey with us. What you'll be doing: Develop and maintain microservices in .NET / ASP.NET Core. Design and expose high‐performance, secure, and scalable RESTful APIs. Implement messaging solutions based on Kafka or Solace, ensuring resilience, idempotence, and event ordering. Apply concurrency and parallelism patterns using the Task Parallel Library (TPL), prioritizing efficiency and performance. Develop automated tests (unit, integration, and contract), ensuring continuous quality and adequate coverage. Work with relational or NoSQL databases (e.g., SQL Server, PostgreSQL, MongoDB), ensuring efficient modeling and best practices for data access. Contribute to the evolution of cross‐functional libraries (chassis framework), ensuring consistency in logging, telemetry, security, and configuration. Participate in code reviews, standard setting, and continuous improvement of the development cycle. Collaborate with DevOps, QA, and Architecture teams to ensure robust and observable deliveries. What you bring to the table: 5+ years of experience with C# / .NET 8. Hands‐on experience with microservices, REST APIs, and messaging (Kafka, Solace, RabbitMQ, or similar). Experience with containers (Docker) and CI/CD pipelines (GitHub Actions, Azure DevOps, etc.). Familiarity with logging, observability, and tracing (OpenTelemetry, Grafana, Prometheus). Strong foundation in design patterns, SOLID, and Domain‐Driven Design (DDD). Knowledge of TPL (Task Parallel Library) and asynchronous programming is a plus. Do you meet most of the position requirements? Then grab this opportunity and apply now! https://form.typeform.com/to/PYqxT8NO?opportunity=Patricia%20Moura&channel=ITJobs What we offer: A project that matches your skills and ambitions, as well as your preferences for working policies and culture. A competitive salary with awesome benefits and opportunities to leverage your knowledge and network to earn additional income. An empowering and respectful work culture enriched with social and learning events. A People Experience Partner specially assigned to you - your go‐to career guide, responsible for supporting your growth, facilitating training, and ensuring your work‐life balance at KWAN. Some Words From Our Colleagues "At KWAN, they make sure that I feel comfortable with the client I'm working for and that what I'm doing aligns with my career aspirations." — Luis Caldeira, DevOps @ KWAN #J-18808-Ljbffr