.NET backend developer in high-load systems
Build and maintain the C#/.NET high-load backend that turns algorithm-team signals into video indexing and auto-tagging of live sports events, on Azure with event-driven messaging (Service Bus/Kafka). Hybrid role in Warsaw (3 days/week) collaborating with an Israel-based team in an AI-assisted workflow, with periodic on-call duty.
- Compensation
- Not disclosed
- Location
- Warszawa, Poland
- Work setup
- Hybrid
- Seniority
- Not specified
- Employment
- Not specified
- Experience
- 5+ years
- Category
- Backend
- Posted
Skills
Must have
- Strong proficiency in C# and .NET, 5+ years of commercial .NET experience
- Hands-on experience developing within Azure cloud environments
- Familiarity with and daily use of AI-assisted engineering tools (e.g., Claude, Cursor)
- Excellent interpersonal skills; ability to mentor peers and lead design discussions
- High autonomy, independent task execution, and proactive communication for distributed collaboration
- Familiarity with event-driven messaging services such as Azure Service Bus or Kafka
- Working knowledge of SQL databases (general proficiency)
- Basic familiarity with DevOps terminology and Kubernetes (operational expertise not required)
- Willingness to work hybrid, 3 days per week from the Warsaw office
Full description
Описание
As a Backend Engineer at our client, you will contribute directly to the core index layer, processing video indexing based on signals from the algorithm team. Your work will power the auto-tagging engine—the system that splits sports games into distinct events and accurately assigns start and end times to each action. You will balance deep feature development with critical problem-solving in a highly collaborative, AI-integrated environment.
Задачи
Build and maintain the C#/.NET backend infrastructure that interprets algorithm signals to index videos and auto-tag live sports events Elevate the team by actively participating in design discussions, driving code review standards, and mentoring fellow developers Participate in a shared on-call pool (approximately one week every five weeks). While critical nighttime or weekend outages are rare, you must remain reachable and have access to a laptop to respond to operations team escalations Execute tasks independently, demonstrate strong problem-solving skills, and maintain prompt, proactive communication via Slack with the Israel-based team
Требования
Strong proficiency in C# and .NET, with 5+ years of commercial .NET experience Hands-on experience developing within Azure cloud environments Familiarity with and daily use of AI-assisted engineering tools (e.g., Claude, Cursor) Excellent interpersonal skills with a proven ability to mentor peers and lead design discussions High autonomy, independent task execution, and proactive communication habits for effective distributed collaboration Familiarity with event-driven messaging services such as Azure Service Bus or Kafka Working knowledge of SQL databases (general proficiency; specific engines do not matter) Basic familiarity with DevOps terminology and Kubernetes (operational expertise is not required) Willingness to work in a hybrid mode, 3 days from the office in Warsaw
Условия
Direct ownership of pure backend compute at scale—no full-stack dilution, focusing entirely on high-load microservices, indexing engines, and real-time processing High-autonomy environment with modern workflows where AI tools (Claude, Cursor) are embraced to eliminate boilerplate and keep focus on architecture