---
title: ".NET Backend Developer — 6-Month Project (NXJ-204)"
company: "Newxel"
company_url: "https://www.remjobs.works/companies/newxel"
url: "https://www.remjobs.works/job/newxel-net-backend-developer-6-month-project-nxj-204-1b05592a-c1c9-4211-b8f8-3183952052ce"
apply_url: "https://jobs.ashbyhq.com/newxel/b8d1a38d-b53d-4e0f-90d0-3abfc7c1c947"
workplace: hybrid
location: "Poland (Hybrid/Entity)"
employment_type: full-time
seniority: mid
role: software-engineering
region: europe
skills: ["azure", "csharp", "kafka", "kubernetes", "sql"]
date_posted: 2026-09-14T12:59:50.102Z
first_seen_by_remjobs: 2026-09-19T22:13:14.322Z
---

# .NET Backend Developer — 6-Month Project (NXJ-204)

**Newxel** · Poland (Hybrid/Entity)

Apply: https://jobs.ashbyhq.com/newxel/b8d1a38d-b53d-4e0f-90d0-3abfc7c1c947

## About Newxel

Accelerate growth with Newxel’s dedicated teams, staff augmentation, and R&D setup. Pre-screened engineers ready in 2–4 weeks, fully managed.

## About the role

#### The Role

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.

#### About the Product

The product is an *AI*-powered sports media platform used by major sports organizations to transform live broadcasts into personalized digital content at scale. Every live stream is continuously ingested, analyzed, and enriched with *AI*-generated metadata, enabling automatic detection of key moments, intelligent video indexing, and near real-time content creation.

Behind the scenes, the platform processes massive volumes of live and archived video 24/7, powering personalized fan experiences across web, mobile, social, and broadcast channels. The backend infrastructure is built for extreme throughput, low-latency processing, and elastic scaling, combining distributed microservices with production-grade ML inference pipelines to deliver reliable performance under unpredictable traffic peaks.

**Team Structure & Collaboration:**

You will join a focused backend squad consisting of four developers, one QA, and one PM, led by the engineering manager. This squad sits within a larger group of two backend teams and two algorithm teams. Because the index layer relies heavily on algorithm signals, you will work in close daily collaboration with the *AI* and algorithm teams.

#### What You’ll Be Doing

- Video Indexing & Auto-Tagging: Build and maintain the C#/.NET backend infrastructure that interprets algorithm signals to index videos and auto-tag live sports events

- Technical Leadership: Elevate the team by actively participating in design discussions, driving code review standards, and mentoring fellow developers

- On-Call Rotation: 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

- Proactivity: Execute tasks independently, demonstrate strong problem-solving skills, and maintain prompt, proactive communication via Slack with the Israel-based team

#### What We Expect

- 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

#### Why This Role Is Worth Your Time

- 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

---

Source: Newxel's own career page, read by RemJobs. Canonical HTML version: https://www.remjobs.works/job/newxel-net-backend-developer-6-month-project-nxj-204-1b05592a-c1c9-4211-b8f8-3183952052ce