Senior Fullstack Engineer (AI)

Salary :

€2 monthly

Unternehmen : Autarc Gmbh

Auftragstyp : Vollzeit

Berlin, Germany

Arbeitsbeschreibung - Senior Fullstack Engineer (AI)

Company

Founded in Berlin, autarc is a ~40 person start-up who were part of Y Combinator’s S24 batch in San Francisco. Our team consists of people in Sales, Tech and Operations, with the Engineering & Product department currently ~20 people, as we continue to grow throughout the year.

Role description

This role is to join our AI team, where you will ship production AI features end-to-end across web/mobile clients and Backend services. This is an applied AI Engineering role: integrating modern models into reliable product workflows, not training models from scratch.

You will work on features such as Computer Vision workflows for energy installers, voice agents, AI-powered automations and help scale new Backend services being built in Go. Further responsibilities include building and owning AI-powered product features from UI to Backend, integrating LLM and multimodal API's (OpenAI, Anthropic, Mistral etc.) with structure outputs, guardrails and prompt/version management.

Other responsibilities include:

Develop and maintain Backend services in Typescript and Go
Build reliable async flows (webhooks, retries, idempotency, failure handling)
Build CV/image/document analysis pipelines used in real installer workflows
Ship product-quality UX in React/Tailwind where needed, in close collaboration with Design
Instrument features with logs/metrics/tracing and improve reliability
Contribute to testing strategy across Frontend and Backend

The role is Fullstack, with a 40/60 split between Frontend & Backend.

Requirements

5+ years of professional experience in building SaaS
Hands-on experience integrating LLM/multimodal APIs into production systems
Strong Fullstack experience with TypeScript, React, Node and ideally NestJS
Professional experience working Go and readiness to own new Go endpoints/services
Solid SQL/Postgres skills and familiarity with object storage
Product mindset: you can turn ambiguous requirements into stable, user-facing features
Based in Berlin with a willingness to work 3 days hybrid (office in Mitte)
Fluent in English (German is a plus)

What we offer

Freedom to choose your own equipment (within a budget)
26 paid vacation days
An annual team retreat
The choice between Dance or JobRad for mobility
The choice between Classpass or Urban Sports Club for fitness
Regular team events, lunches and activities

Next steps

If your application is successful, you will participate in the following:

Screening call with Louis (Recruiter)
Culture fit call with a Senior Engineer
Pair programming/live coding exercise
Final on-site interview with Marius (CTO) and the team

About us

Right now, 25% of CO2 emissions in Europe are caused by heating our buildings. In order for this to be reduced, the transition towards renewable energy needs to be simplified and made more accessible. There are too few installers to meet the growing demand for heat pumps, and a solution to match this trend needs to be brought to the market.
autarc is developing the leading operating system (OS) for heat pump installers, enabling a more digital and efficient installation process for heat pumps.
Through this, autarc is reducing the hurdles to decarbonizing single-family homes and small apartment buildings in Europe, with the goal to help with the planning and designing of 1 million heat pumps by 2030.

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