Lead Full-Stack Engineer (TypeScript/Node.js)

Quick Facts

• Role: Lead Full-Stack Engineer focused on backend services
• Domain: Digital twin platform for the energy transition
• Collaboration: Direct work with German-speaking clients and stakeholders

Description

You will help develop an advanced digital twin platform that unifies energy and climate-related data into one solution for analytics and decision-making. The platform supports CO₂ balancing, renewable energy expansion, power grid planning, and municipal heating strategies. Built on a modular and scalable architecture, it enables complex analytics and real-time insights.

Role description

You will design, develop, and maintain scalable backend services primarily with TypeScript/Node.js, and contribute to microservices built with Golang and Python.

Responsibilities

• Design, develop, and maintain scalable backend services using TypeScript/Node.js
• Contribute to microservices built with Golang and Python components
• Collaborate directly with German-speaking clients and stakeholders to gather requirements and propose technical solutions
• Build and optimize PostgreSQL data models and queries
• Develop and maintain APIs using gRPC and REST
• Containerize applications with Docker and manage deployments on Kubernetes (AWS)
• Contribute to architecture decisions for distributed systems
• Ensure system scalability, performance, and reliability
• Collaborate with frontend (Angular) and backend (NestJS) teams
• Work independently from concept to production delivery
• Participate in agile ceremonies, code reviews, and continuous improvement initiatives

Requirements

• 5+ years of backend development experience
• Strong commercial experience with TypeScript and Node.js
• Experience designing and developing scalable backend services and microservices
• Fluent German (C1/C2) to communicate confidently with business stakeholders and clients
• Experience working directly with clients, including requirements gathering and solution discussions
• Experience with AWS services and cloud-based environments
• Solid knowledge of PostgreSQL and database design for scalable, high-performance systems
• Good understanding of Docker and Kubernetes
• Experience designing and developing REST and/or gRPC APIs
• Ability to work independently, take ownership, and drive solutions from concept to delivery
• Strong communication and problem-solving skills
• Very good command of English

Benefits

• Work on a modular, scalable digital twin platform for the energy transition
• Build real-time insights and data-driven decision tools for stakeholders
• Contribute across distributed systems, APIs, microservices, and cloud deployments