Founding Lead Software Engineer - Backend at Agenta AI (Berlin, Germany)
Agenta AI· Berlin, Germany·
Role details
Job description
About Us: Agenta is an open-source LLM developer platform that builds AI applications powered by Large Language Models (LLMs). We streamline each step of the development lifecycle, enabling teams to develop reliable LLM-powered apps more quickly.
Our product equips teams with necessary tools for collaboration and building reliable LLM applications: prompt management, evaluation and testing, and observability and monitoring.
Visit our GitHub repository: github.com/agenta
About the Role: As our fourth engineering hire, you will have full ownership over major product features. You will play a significant role in shaping our engineering team's culture and work closely with the founders.
Our Stack: Our backend uses Python+FastAPI, with MongoDB (and potentially Clickhouse) for our database. We use NextJS+React for our frontend and manage deployments with Kubernetes and Docker Compose for management. Our stack primarily runs on AWS using Terraform. You can check out our code at github.com/agenta
Why Join Us:
- Your work will significantly impact our customers.
- You will help build the company and product's foundation.
- There are massive growth opportunities, not only technically but also professionally.
- Public work exposure through contributions and collaborations on open-source projects. Sample Projects for the First Few Months:
- Designing a scalable observability architecture for tracing LLM calls and integrating it with OTel.
- Optimizing and enhancing the latency of our observability dashboard for analytics.
- Improving the design of our SDK for prompt management.
About You:
- You have 5+ years of experience in software development and broad knowledge in various technologies (AWS, CI/CD, Kubernetes…).
- Python is your second language
- You're a 10x Engineer, considered a top engineer in your previous roles.
- You possess excellent communication skills, both written and spoken.
Bonus Points:
- Experience in founding a startup or working in an early-stage startup.
- Experience in ML and building LLM applications.
- DevOps or infrastructure experience.
- Some frontend development knowledge (React, NextJS).
Our Company Culture Hard Work Makes a Difference:
- While working extensive hours doesn't guarantee success, working too few can lead to failure. We value our work ethic and believe it makes a significant difference. Ownership:
- Every engineer at Agenta plays both the role of a project manager and a developer. This encompasses designing features, interacting with customers, overseeing deployment, and managing bug reports.
What We Offer:
- Opportunity to work on a challenging problem in a highly competitive market.
- A smart and talented team.
- Ownership and rapid growth opportunities.
- Competitive salary and significant equity in the company
Interested? Please contact us on careers@agenta.ai
Why work at Agenta AI
- Remote-first culture: Team is distributed across 5 countries (Germany, France, Malta, Bangladesh, Pakistan), suggesting a flexible, async-first work environment.
- High-impact, small team: With only 5-9 employees, you'll have outsized ownership and influence over product direction.
- Cutting-edge domain: Work at the forefront of LLMs, agents, and AI infrastructure — one of the fastest-moving areas in tech.
- Open-source community: Opportunity to engage with and grow a community of 100+ contributors and thousands of users.
- Berlin headquarters: Based in Berlin's Betahaus coworking space, a hub for European tech startups.
- Technical team: 30% of the team is in technical roles; the CTO (Juan Pablo Vega) is actively building.
- Recent product velocity: The team ships frequently and visibly — a strong signal of engineering culture and execution focus.