Backend Engineer - AI (Agent Systems)

Backend Engineer – AI (Agent Systems)

Miejsce pracy: Warszawa

Technologies we use

Optional

• Python
• Node.js
• PyTorch
• OpenAI
• Anthropic
• Kubernetes
• Docker
• SQL
• NoSQL

Operating system

• macOS

About the project

Imagine building the infrastructure behind an AI product designed to help billions of people get things done faster and smarter.

We’re looking for a Backend Engineer – AI to develop the systems that power every AI interaction behind the scenes. You’ll build the orchestration and inference layer that transforms cutting-edge AI models into reliable, production-ready services used by real users every day.

If you’re passionate about distributed systems, high-performance backend engineering, and the future of AI…

Feel invited! This is your chance to help shape the next generation of intelligent products.

This is how we organize our work

This is how we work

• at the client's site

Your responsibilities

• Design, build, and operate backend systems powering AI-driven product features
• Develop inference pipelines and orchestration layers for Large Language Models
• Build scalable APIs that connect AI capabilities with web and mobile applications
• Improve system performance by optimising latency, throughput, caching, batching, and streaming
• Ensure production reliability through monitoring, logging, alerting, and incident response
• Collaborate closely with Machine Learning, Product, and Frontend teams to deliver end-to-end solutions
• Continuously improve platform scalability, observability, and operational excellence
• Drive engineering best practices across AI infrastructure and backend services

Our requirements

• Has strong commercial experience in Backend Engineering
• Has built and maintained production-grade distributed systems
• Understands scalable backend architecture and API design
• Has experience with high-throughput, low-latency applications
• Is familiar with AI inference, Large Language Models (LLMs), embeddings, or multimodal systems
• Enjoys solving performance, reliability, and scalability challenges
• Takes ownership and thrives in fast-moving, product-focused environments
• Is proactive, pragmatic, and enjoys learning from real production systems
• Communicates effectively and enjoys collaborating with cross-functional teams

Optional

• Experience with Python, Node.js, PyTorch
• Familiarity with OpenAI, Anthropic, or open-source LLMs
• Experience with Kubernetes, Docker, SQL, and NoSQL databases
• Exposure to AI infrastructure, model serving, or inference optimisation

What we offer

• Full-time employment
• 100% remote work
• Opportunity to build an AI-native product with global ambitions
• Work with state-of-the-art AI technologies and modern backend infrastructure
• High ownership and autonomy from day one
• Collaboration with an exceptional engineering team passionate about innovation
• Fast-paced environment where your ideas have real impact
• Opportunity to solve complex engineering challenges at scale

This is how we work on a project

• documentation
• issue tracking tools
• testing environments

Congrats! If you want to build the AI infrastructure powering intelligent products used by millions, this role is ideal for YOU!

NTIATIVE sp. z o.o.

NTIATIVE is one of the best Polish recruitment agencies because we specialise in IT and IT only and avoid all other distractions.

We want to provide a unique and unforgettable experience by matching tech talent with great employers.

Our team delivers to the commitments we gave to each other, our candidates and our clients.