Jobs Companies Newxel Backend Engineer (NXJ-191)

Sobre este puesto de Backend Engineer (NXJ-191) en Newxel

Newxel · Híbrido · Poland (Hybrid/Entity)

The Role

You will take ownership of the video-analysis pipeline and auto-tagging engine—the high-throughput indexing backbone that powers the product's core intelligence. This is pure backend engineering at peak scale: managing 30+ microservices operating in elastic Kubernetes clusters, optimizing high-performance compute workloads under severe traffic spikes, and integrating production ML models directly into the pipeline.

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.

Technology Stack: The infrastructure runs on cloud microservices deployed to Kubernetes, leveraging pub-sub architectures built with Kafka or Azure ServiceBus for real-time event routing. Storage and data access rely on relational SQL databases optimized for high-throughput, low-latency querying. Development workflows embrace modern tooling like Git and CI/CD pipelines, alongside AI-assisted tools such as Claude and Cursor integrated into the daily delivery cycle.

What You’ll Be Doing

  • Own the video-analysis pipeline and auto-tagging engine, driving end-to-end performance from architectural design to production operation

  • Integrate ML and AI inference models into backend services to handle automated real-time video indexing

  • Redesign backend microservices and APIs to improve throughput, latency, and resource utilization during peak traffic surges

  • Implement pub-sub event architectures using Kafka or ServiceBus to process video streams asynchronously

  • Establish system observability, runbooks, and incident response tooling to ensure 24/7 uptime for critical backend services

  • Mentor backend engineers, drive code review standards, and lead technical design across 30+ active microservices

What We Expect

Must-have

  • 5+ years of experience building and scaling high-throughput backend systems in cloud/SaaS environments

  • Proven expertise in a mainstream backend language (such as C#, Java, or Python) with strong distributed systems principles

  • Hands-on experience designing relational SQL schemas and optimizing complex data access patterns

  • Practical experience with pub-sub and event-driven messaging systems (Kafka, Azure ServiceBus, or equivalent)

  • Track record of leveraging CI/CD pipelines and AI-assisted engineering tools (Claude, Cursor) in daily workflows

  • Degree in CS/Software Engineering or equivalent real-world depth

Nice-to-have

  • Production experience with .NET Core within a large microservices estate

  • Deep cloud platform experience (Azure hyperscaler, networking, cost/performance trade-offs)

  • Background handling asynchronous batch processing or high-scale ML model deployment pipelines

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

  • Deep integration with AI/ML engineering—you are building the actual infrastructure that serves, monitors, and runs machine learning inference models on live data

  • High-autonomy environment with modern workflows where AI tools (Claude, Cursor) are embraced to eliminate boilerplate and keep focus on architecture

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