Full stack software developer, developer python

End-to-End Feature Development: You build and own product features from scratch, moving confidently between our backend ( Kotlin/Spring Boot ) and frontend ( React )

You integrate LLM APIs (OpenAI, Gemini, Anthropic) and transform them into real-world product value

Collaborative Engineering: You work closely with our Data Engineer on data-to-product integration and contribute to our CI/CD pipelines to ensure high-quality deployments

Security & Reliability: You implement security best practices, with a specific focus on prompt injection defense, output validation, and data privacy

JVM & Python Proficiency: You are experienced - or have a strong desire to make it your primary language -in Kotlin/JVM (Spring Boot, Hibernate) and you are solid in Python (FastAPI)

AI Expertise: You have Hands-On experience integrating LLM APIs into live products. Tech Stack Foundations: You are comfortable with PostgreSQL and have basic knowledge of TypeScript (React/Redux) - Familiarity with GCP is an advantage

Security Mindset: You build with a "security-first" approach (OWASP Top 10) and understand the unique challenges of LLM-based applications.

Language: Strong English is mandatory - Proficient German skills are a plus

Startup Culture: Attractive Compensation: We offer an attractive salary package

Flexibility: You value the flexibility of remote work but are excited to join us in the Berlin office as well

Benefit Program and Team Offsites, Office Parties and Team working days

We provide an unique professional development approach as well as a broad network of mentors

Wir unterstützen Städte und Gemeinden dabei, ihre Liegenschaften wirtschaftlich und zukunftsfähig zu modernisieren – von der Energieberatung über die technische Planung bis zur Umsetzung konkreter Maßnahmen. Als spezialisierter Partner der öffentlichen Hand bringen wir Struktur, Tempo und Verlässlichkeit in die energetische Modernisierung kommunaler Infrastruktur. Unsere Arbeit hilft Kommunen, Energiekosten zu senken, Investitionen besser zu steuern und ihre Liegenschaften langfristig zukunftsfähig zu machen.

Gleichzeitig verpflichtet die EU-Gebäuderichtlinie (EPBD 2024) die öffentliche Hand dazu, ihre Liegenschaften systematisch zu modernisieren. Damit aus politischen Zielen konkrete Projekte werden, braucht es Partner, die Planung und Umsetzung zusammenbringen.