.NET Backend Developer (6-Month Project)

Quick Facts

• Role: .NET Backend Developer (6-Month Project)

• Focus: Backend indexing and auto-tagging for AI-driven sports video

Description

As a Backend Engineer, you will build the C#/.NET infrastructure for the video indexing layer that interprets algorithm signals to auto-tag live sports events with accurate start and end times. You’ll work on scalable, low-latency microservices in a highly collaborative, AI-integrated environment, partnering closely with AI and algorithm teams. The role includes participation in a shared on-call rotation with occasional escalation response requirements.

Responsibilities

• Build and maintain the backend infrastructure for video indexing and auto-tagging based on algorithm signals

• Drive technical design discussions, uphold code review standards, and mentor fellow developers

• Participate in a shared on-call pool (~one week every five weeks) and respond to operational escalations

• Work independently on tasks with proactive communication in a distributed setup

Requirements

• 5+ years of commercial .NET experience with strong C# proficiency

• Hands-on Azure experience

• Familiarity with and daily usage of AI-assisted engineering tools (e.g., Claude, Cursor)

• Experience with event-driven messaging services such as Azure Service Bus or Kafka

• Working knowledge of SQL databases

• Basic familiarity with DevOps terminology and Kubernetes

• Hybrid availability: 3 days from the office in Warsaw

• Strong interpersonal skills, including mentoring and design leadership

• Autonomy and proactive communication for distributed collaboration

• Ability to be reachable during on-call and respond using a laptop

Benefits

• Direct ownership of backend compute at scale—no full-stack scope, focused on high-load microservices and real-time processing

• High-autonomy environment with modern workflows that leverage AI tools to reduce boilerplate and keep focus on architecture