Must have

• Cloud

• Machine learning

• RAG

• Python

• MCP

• LLM

• Docker

• Kubernetes

• Frontend

• Backend

• Azure

• Architecture

• English (B2)

Nice to have

• Polish (B2)
• German (B2)

Requirements description

To excel in this role, you'll bring the following expertise and experience:

• Polyglot Programming: Production experience with multiple programming languages, their ecosystems, and major libraries; ability to switch seamlessly between paradigms and navigate diverse open-source technologies.
• Architecture & Design: Proven experience applying design principles, architectural patterns, and system design concepts; ability to create and implement scalable, maintainable architectures.
• AI Implementation: Hands-on experience with LLMs, prompt engineering techniques, and coding agents; working knowledge of RAGs, MCPs, and optimization strategies for latency and token costs across AI providers.
• Code Excellence: Demonstrated ability to write reliable, secure, and performant code with comprehensive tests across multiple languages; expertise in conducting thorough code reviews that identify correctness issues, security vulnerabilities, and performance bottlenecks before production.
• Full-Stack & Cloud Development: Strong proficiency across the entire stack i.e. frontend, backend, data processing, and infrastructure as code; extensive experience with cloud platforms and cloud-native architectures.
• Exceptional Problem-Solving: Sharp analytical thinking with meticulous attention to detail; proven ability to decompose complex problems, identify hard-to-find bugs, and communicate technical concepts clearly to diverse audiences.
• Technical Leadership: Demonstrated experience as team lead, tech lead, or staff engineer; proven ability to structure, plan, and prioritize complex work; strong track record of mentoring and developing engineering talent.
• Academic Foundation: Computer Science degree from a rigorous institution preferred (UW, UJ, PW, AGH, UWr, PWr, or equivalent international university).
• Language Proficiency: Fluent English required for effective communication and technical documentation; Polish or German proficiency considered an asset.

Offer description

Join us if you believe in designing and implementing holistic solutions (keyword: AI swarm) rather than fighting another merge-conflict alone. We at Perelyn are building developer tooling that fuses cutting-edge LLMs with classic software-craft principles: Think pair-programming with a super-powered copilot that never sleeps, shipping production-ready code at a pace humans alone can’t match. Perelyn is a growing AI powerhouse in Europe serving customers like Zeiss, Rewe, Roche, Deutsche Bahn and E.ON. Our current crew includes PhDs in machine learning, ex-tech-lead founders and a rubics cube european champion.

• Compensation: 35 000 - 40 000 PLN gross/month (B2B) or equivalent (UoP).
• Remote-first: we operate primarily remotely (with occasional visit to our clients), but there are options for onsite work in Warsaw or Poznań
• Regular company events across Europe

We at Perelyn are a leading consulting company in the field of artificial intelligence, and develop innovative and lasting solutions for our clients and partners. From conceptualisation to implementation, we cover the entire spectrum of artificial intelligence products, services, and strategy. Over the years, we have assisted companies like MunichRe, ProSiebenSat.1, T-Systems, Deutsche Bank and Zeiss Semiconductor in their digital transformation. Beyond that, we develop our own products and services and foster an entrepreneurial spirit with high aspirations to have societal impact that benefits humans and nature alike.

Perelyn values diversity in experiences: At Perelyn, we bring the right people with diverse backgrounds and capabilities together and continuously invest in the development of our employees, fostering engagement in line with their personal goals.

Thus, even if you do not meet all the qualifications and skills listed in the job description, we encourage you to apply if the job and our mission resonates with you.

Your responsibilities

1. You will be the architect and driving force behind our augmented coding framework. Your work will focus on:
2. Designing and implementing a robust framework for AI-assisted software development, later used to deliver applications from high-level business requirements.
3. Exploring, integrating, and optimizing state-of-the-art AI coding agents, MCPs, LLMs, and prompt-engineering techniques.
4. Building scalable, cloud-ready solutions that streamline the full software lifecycle, from architecture to deployment.
5. Shaping the future of how our teams develop software, enabling rapid, high-quality application delivery.
6. Once the foundation is established, you will lead small engineering teams, guide technical direction, and mentor developers in leveraging augmented coding for high-efficiency software delivery for our clients.