Newxel is an IT staffing and engineering services provider that helps businesses build and operate dedicated software development teams and turnkey R&D centers. Its services span IT recruitment, staff augmentation, offshore development centers, and legal, financial, and operational support for scaling engineering operations across more than 10 countries. Newxel works with specialists in web and mobile development, AI and machine learning, big data, game development, quality assurance, embedded software, cybersecurity, and blockchain, supporting long-term business partnerships and distributed technical teams.
Backend Developer C# .NET Warsaw Hybrid
Develop C# and .NET microservices that ingest live sports data and support automated highlight creation and publishing for international media audiences.
Description
- Join a Data Ingestion team comprising 5 developers, 1 QA specialist, and 1 Product Manager.
- Develop backend features while handling bug fixes and support, with time divided approximately evenly between development and maintenance.
- Define task scope independently, design solutions, and lead technical initiatives.
- Use system design and architecture principles to build low-latency, event-driven microservices.
- Create reliable deployment pipelines for bringing ML models into production.
- Manage complete service delivery from RFC design through zero-downtime deployment and post-release telemetry.
- Diagnose distributed performance issues and scale compute clusters supporting concurrent, continuous media processing.
- Evaluate third-party REST APIs and build C#/.NET 8 ingestion managers and parsers.
- Map JSON data to internal MS SQL Server models.
- Extend pipeline functionality to support rosters, coaching staff, event lineups, and related data.
- Build dependable error handling for malformed or unexpected provider data.
- Analyze production defects by comparing provider payloads in Azure Blob Storage with database records and Coralogix logs.
- Manage development work, pull requests, code reviews, and deployments through GitHub Actions and Azure DevOps pipelines.
- Work with technical leads to refine architectures, clarify Jira requirements, and document systems in Confluence.
Requirements
- At least 5 years of backend development experience.
- Advanced proficiency in C# and .NET Core 6 or later, ideally .NET 8.
- Practical experience building microservices and working with SQL.
- Demonstrated ability in system design and software architecture.
- A university degree in Computer Science or a closely related technical discipline.
- Daily hands-on use of AI coding tools such as Claude or Cursor, or experience with ML frameworks.
- Strong independence, including the ability to scope complex work and take ownership without micromanagement.
- A stable employment record demonstrating sustained tenure.
- Experience with messaging queues, event-driven architecture, and modern design patterns is desirable.
- Full-stack or frontend development experience is desirable.
- Cloud infrastructure experience is desirable, preferably with Azure; AWS or GCP experience is also acceptable.
Benefits
- Hybrid arrangement with 3 days each week in the Warsaw office.
- Monday-to-Friday schedule, approximately 9 AM to 6 PM.
- Quiet, meeting-free Fridays are often available for focused work.
- No on-call responsibilities.
- A predictable work-life balance.
- Exposure to modern AI engineering practices and AI coding assistants.
- Ownership of, and direct influence over, live broadcast-level media products.
- A team culture centered on knowledge sharing.