Design and build the software that turns large language models into reliable, production-grade
products. You'll work across the full stack — backend services, AI tooling, and user-facing interfaces
— shipping features that let AI agents reason over data and act safely on behalf of users.
Responsibilities & Duties
- Implement and design features: Develop high-quality software components — both conventional services
and AI/LLM-powered capabilities — that align with established architectural patterns and business
requirements.
- Task decomposition: Break down assigned features into manageable technical tasks and provide reliable
estimates for delivery timelines.
- Code ownership: Write, maintain, and optimize clean, modular code, ensuring performance, scalability,
and (for AI features) cost and context efficiency are considered during implementation.
- Quality assurance: Participate actively in code reviews, provide constructive feedback to peers, and
adhere to defined coding standards and quality protocols. Evaluate AI features for correctness, safety,
and regressions.
- Cross-functional collaboration: Coordinate with colleagues to clarify requirements and ensure
seamless integration of new features.
- Knowledge sharing: Contribute to internal documentation to promote team-wide understanding of the
codebase and AI system behavior.
- Process contribution: Identify opportunities for technical-debt reduction and suggest improvements to
the development workflow or toolset to increase efficiency.
Must have
- Strong experience in at least one backend language and ecosystem (e.g. Python, TypeScript, Go, Java,
or C#/.NET).
- Deep understanding of software design fundamentals — OOP, SOLID, and separation of concerns.
- Expertise in developing RESTful web services and web applications.
- Solid knowledge of SQL and database/data modeling.
- Comprehensive knowledge of version control systems, particularly Git.
- Experience writing automated tests (unit and integration).
- Communication skills, with the ability to synchronize effectively within a team.
- Proven experience working with scalable, high-performance systems.
AI / ML engineering
- Hands-on experience building LLM-powered applications — prompt design, tool/function calling,
structured outputs, or RAG.
- Understanding of how to make AI features reliable and evaluable — handling non-determinism, context
limits, latency, and cost.
- Familiarity with agent patterns and orchestrating multi-step AI workflows.
Nice to have
- Knowledge and experience with cloud technologies (Azure, AWS, or GCP); infrastructure-as-code (Bicep,
Terraform) a plus.
- Experience with vector databases, embeddings, or retrieval pipelines.
- Experience with model evaluation / observability tooling (e.g. tracing, prompt management, eval
frameworks).
- Understanding of cyber security essentials (auth, secrets management, least-privilege access).
- Experience developing and maintaining microservices.
- Frontend experience (e.g. React/TypeScript) for building AI-driven user interfaces.
We could tell you about the free breakfast, the drinks in the fridge, and the 30 vacation days. Or that flexible hours and remote work are part of the deal. But honestly? That’s just standard.
Here’s what makes working with us in Frankfurt extra special:
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Work from (almost) anywhere– Take your job with you on a workation and get inspired bynew places.
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Time for growth–A career framework to support your professional and personal growth with up to 6 extra days off per year foryourdevelopment.
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Social Day– One paid day per year to give back: volunteer, support a cause, or attend an environmental event.
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Bike leasing– Stay fit and sustainable.We’llhandle the contract and insurance.
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Pick yourperk– Choose the benefit that fits your life best: fitness membership, public transport pass, retirement plan, or a monthly bonus.
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Dog Friendly Office-Bring your furry coworker along. Just make sure theydon'tsteal anyone’s lunch.
Hybrid work is a natural part of how we operate, but we also believe in the power of coming together. That’s why we regularly connect in the office - whenever it makes sense.
And that’s just the beginning. Ask us what else is waiting for you!
Send us your application IN ENGLISH, including your salary requirements and earliest possible starting date, directly through our online portal via the "APPLY NOW" button. If you have any questions, please do not hesitate to contact Diane Djongoue.
We would like to know that MATRIX42 can only accept applications online via the applicant portal in connection with our applicant management system because of the currently valid EU data protection regulations.
We are an equal opportunity employer. We welcome applications from all genders and do not discriminate on the basis of gender, gender identity, age, disability, ethnic origin, religion or belief, or sexual orientation.
Our ambition is to be the European choice in service management!
By using our platform, customers can manage IT and business processes, assets, endpoints, and identities for improved productivity, agility, security, and employee experience. By enabling digital working environments and IT self-service through holistic integration and automated processes, we digitalize and automate our customers' everyday tasks. Join our diverse team of 600 professionals spread across Europe.
Our high performers culture is built on strong values (We love customers, Make it happen, Better every day, With respect), with customer success as our top priority. We support your personal and professional growth, helping you reach your full potential through personalized goals. Join us on a journey where you can thrive in both your career and life.
We are committed to building an inclusive and diverse workplace, and we welcome applications from all individuals, regardless of gender, age, disability, ethnic or social origin, religion or belief, sexual orientation, or identity.
