Software Engineer – Fullstack, AI

🕒 April 6

🏢🏡 Berlin – Hybrid

⏰ Full Time

🟡 Mid-level

🟠 Senior

🧑‍💻 Full-stack Engineer

🗣️🇩🇪 German Required

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Logo of admi

admi

WebsiteLinkedIn

11 - 50 employees

⚡ Energy

🔬 Science

Energy • Science • Consulting

admi is a company focused on facilitating the expansion of photovoltaic (PV) systems for municipalities. They offer comprehensive planning and implementation services to help communities efficiently and effectively install PV systems on public buildings. Their expertise lies in minimizing internal resource requirements and ensuring rapid project completion, often within three months. admi acts as an external project manager, addressing challenges in PV project financing, planning, and maintenance, thereby enabling municipalities to lead in the energy transition, reduce CO2 emissions, and lower energy costs. They provide a full-service solution from potential analysis and planning to construction and public relations, having supported numerous municipalities in becoming pioneers of renewable energy.

📋 Description

• End-to-end feature development: Build and own product features from concept to production, moving confidently between our backend (Kotlin/Spring Boot) and frontend (React). • AI implementation: Drive our AI roadmap by integrating LLM APIs (OpenAI, Gemini, Anthropic) and turning them into tangible product value. • Agentic systems & workflows: Design and implement advanced agentic patterns, including tool/function calling, ReAct loops, multi-step orchestration, and intelligent memory systems. • Collaborative engineering: Work closely with our Data Engineer on data-to-product integration and contribute to our CI/CD pipelines to ensure reliable, high-quality deployments. • Security & reliability: Apply security best practices with a focus on prompt-injection defenses, output validation, and data privacy.

🎯 Requirements

• JVM & Python proficiency: Experienced in — or highly motivated to make your primary language — Kotlin/JVM (Spring Boot, Hibernate) and solid in Python (FastAPI). • AI expertise: Hands-on experience integrating LLM APIs into production products. Familiarity with RAG, context management, and reasoning patterns. Experience with LangGraph is a strong plus. • Tech stack foundations: Comfortable with PostgreSQL and have basic knowledge of TypeScript (React/Redux). Familiarity with GCP is an advantage. • Security mindset: Build with a security-first approach (OWASP Top 10) and understand the specific challenges of LLM-based applications. • Language: Strong English is required; proficient German skills are a plus.

🏖️ Benefits

• Benefits program, team offsites, office parties, and team working days. • Competitive compensation.

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