Full Stack Engineer – Generative AI & Agents

Deyan7 GmbH & Co. KG; Köln, Bochum, Mainz; On-site; USD 69,000 - 110,000; Full time

Benefits offered by this job

Flexible hours

Unlimited home office

EU workation (20 days)

Job summary

Deyan7 in Germany seeks a Full Stack Engineer to join our Generative AI & Agents team. Work across Cologne/Bochum/Mainz or remotely, with flexible hours and the choice of full- or part-time.

You will implement AI workflows, build frontends and backends, collaborate with clients, and drive features end-to-end using modern AI tools. German language at C2 level is required; you will shape our AI-native software in a fast, collaborative environment.

Qualifications

• Proficiency in an object-oriented, strongly typed language.
• Experience with backend development, databases, or system integration.
• Genuine interest in generative AI, language models, and AI-native software development.
• Confidence using modern AI and coding agents as part of workflow.
• Ability to structure requirements and make technical decisions independently.

Responsibilities

• Implement modern AI workflows with language models, retrieval, search, and coding agents effectively.
• Build frontends that make complex AI functionality understandable and usable.
• Develop backends and integrations that reliably connect data, models, and systems.
• Structure requirements and derive robust technical solutions from them.
• Drive projects or sub-projects independently.
• Make pragmatic decisions together with clients and the team, and execute quickly.
• Continuously improve our internal tools, frameworks, and development processes.

Skills

German C2

OOP language

Backend development

Databases

Generative AI

AI agents workflow

Independent work

Client collaboration

Job description

Full Stack Engineer
Generative AI & Agents (gn)

Cologne / Bochum / Mainz / Remote · Full- or Part-time

We're Hiring!

Speculative application

You can build software that works? Great.

You can use coding agents productively to deliver better results faster? Even better.

If you're also excited about building modern AI systems for German enterprises, then read on.

Software development has changed — and so has the way we work. We combine solid software engineering with modern coding agents, language models, and AI-powered workflows to build productive software for real use cases.

• Implement modern AI workflows with language models, retrieval, search, and coding agents effectively
• Build frontends that make complex AI functionality understandable and usable
• Develop backends and integrations that reliably connect data, models, and systems
• Structure requirements and derive robust technical solutions from them
• Drive projects or sub-projects independently
• Make pragmatic decisions together with clients and the team, and execute quickly
• Continuously improve our internal tools, frameworks, and development processes

Your Profile

• German at C2 level
• Strong proficiency in at least one object-oriented, strongly typed language
• Experience with backend development, databases, or system integration
• Genuine interest in generative AI, language models, search technologies, and AI-native software development
• Confidence in using modern AI and coding agents as part of your workflow
• Enjoyment in achieving visible progress every week while working cleanly
• The ability to structure requirements, make technical decisions, and implement topics independently
  • Productive software over AI demos — pragmatic, fast, and with high quality standards.
  • Modern AI tools and coding agents are an integral part of our daily workflow.
  • Take responsibility early, work closely as a team and near our clients.

What You Get on Top

• Flexible hours, unlimited home office, and 20 days of workation within the EU
• Cutting-edge tools on your device of choice (MacBook Pro / ThinkPad) with admin rights
• Individual development support, annual salary reviews, and 30 vacation days

We're not looking for a perfect checklist. We value people who think technically strong, take responsibility, and want to build productive AI software in an ambitious environment. If you're already confident in some areas and still growing in others, we'd love to hear from you.

Your Path to Deyan7

Our short entry challenge — show us how you think and work.

• Interview with HR — Getting to know each other — we check if we’re a good fit.
• A more detailed case study with real work relevance.
• Assessment + Team — Assessment of your challenge results and getting to know the team.
• Decision — We make a decision together — fast and transparent.

Cutting-Edge AI Stack

Work with the latest LLMs, coding agents, and AI workflows.

Full Ownership

Own features end-to-end, from planning to production. You shape what we build.

Remote, flexible hours, 30 vacation days, and 20 days of workation within the EU.