Job
- Level
- Experienced
- Job Field
- Web, Full Stack, Back End
- Employment Type
- Full Time
- Contract Type
- Permanent employment
- Location
- Oldenburg
- Working Model
- Hybrid, Onsite
Job Summary
In this role, you will develop scalable web apps and data pipelines using TypeScript, Next.js, and React, working on both internal and external projects while leveraging AI tools like Claude and Cursor to enhance solutions.
Job Technologies
Your role in the team
- We currently cover the full spectrum of an AI engineering studio: automation, web app development, agent architectures, infrastructure. You will receive the areas where you are strongest - and grow in the fields that excite you with new challenges.
- Specifically, you work in two worlds:
- Internal Development - our own products and infrastructure. Here, you build systems that we use daily ourselves and expand into scalable platforms in the long term. Stack breadth: TypeScript, Next.js, React, Electron, Supabase, SQLite, n8n.
- External Development - Solutions for our clients in Asset Management, FinTech, and Mid-Market. Here, you translate business requirements into productive software - from web apps and data pipelines to agent architectures, depending on the task and project.
- What exactly you do depends on your profile. Are you more of an automation person who builds clean pipelines and workflows? Strong in frontend, with an eye for UX and performance? Most comfortable with backend architectures? Or are agent systems and LLM orchestration what excite you the most?
- We want to leverage your strengths, not box you into a predefined role. Learning on the job is built-in – not just promised.
- Optional: If you feel like it, you can participate in technical workshops, architecture reviews, or on-site meetings with clients. No obligation.
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Our expectations of you
Qualifications
- Good knowledge of Next.js, React, and a modern database (Supabase, Postgres, or comparable).
- Production mindset: Tests, CI/CD, monitoring are standard for you, not 'we'll do it later'.
- Playful curiosity about AI and agent tools – you try out Claude, Cursor, new models, even if you don't work with them daily.
- Very good German and English (our clients are international).
- 'Just a chill guy/ girl'.
Experience
- 4+ years of professional experience as a Full-Stack Developer with expertise in TypeScript / JavaScript, Python & Rust.
- Backend experience beyond 'creating API endpoints' - data modeling, authentication, performance, caching.
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What we offer
- Direct founder access & co-creation - you work daily with Felix, shaping the stack, architecture, and engineering culture.
- Learn AI and Agent Engineering on the job - you work productively with Cursor, Claude Code, Anthropic API, and Multi-Agent Setups, and learn from the start what many developers only learn in our training sessions.
- Greenfield + 2026 Tech Stack - no legacy, no process theater.
- Top hardware + all the tools you need.
- Learning & Conference Budget - €2,000 / year for books, courses, conferences.
- 30 vacation days.
- On-site phase transitioning to hybrid - first approximately 3-6 months of presence in the office (Oldenburg, August-Hanken-Straße) for onboarding and building trust, then we switch to hybrid (2-3 days in the office, the rest remote).
- Flexible working hours - we measure success by results, not by clock-in times.
- Production over Demos - what you build runs in live operation with customers and in our products.
- Real impact - not a 200-person corporation where your work gets lost in a subproject.
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Benefits
Work-Life-Integration
Topics You Will Work On
Job Locations
About Your Employer
Helios & Eos UG
Helios & Eos is an innovative AI engineering studio based in Oldenburg, specializing in the development and integration of generative AI solutions. The company also offers training and automation solutions and is involved in web app development as well as process automation. Since its founding in 2020, Helios & Eos has established itself as a growing startup in the IT consulting sector.
Description
- Company Type
- Startup
- Working Model
- Hybrid, Onsite
- Industry
- Internet, IT, Telecommunication
Full-Stack Engineer
- Location
- Oldenburg
- Working Model
- Hybrid, Onsite
- Diversity
- Open for all genders
