Lead Fullstack Engineer (Typescript/Node.js) with German

You will join the development of an advanced digital twin platform for the energy transition , designed to unify energy and climate-related data into a single, comprehensive solution. The platform supports stakeholders involved in energy transformation by providing data-driven insights and decision-making tools. It addresses key challenges such as CO₂ balancing, renewable energy expansion, power grid planning, and municipal heating strategies.

Built on a modular and scalable architecture, the solution enables complex analytics and supports real-time insights in a rapidly evolving energy sector.

Tech stack: TypeScript & Node.js (core technologies) Golang (microservices, gRPC-based services) Python (ETL-related components) PostgreSQL Redis (Key-Value stores) gRPC & REST APIs Docker & Kubernetes AWS (cloud infrastructure) RabbitMQ / AWS SQS (event-driven architecture) NestJS Angular / Svelte (collaboration exposure) About Spyrosoft Spyrosoft is an authentic, cutting-edge software engineering company, established in 2016. In 2021 and 2022, we were among the fastest growing technology companies in Europe, according to the Financial Times. We were founded by a group of tech experts with established backgrounds in software engineering, who created an ‘engineer-to-engineer’ workplace, powered by enthusiasm, fairness and authentic relationships. Having a unique offering, which bridge the gap between technology and business, we specialise in technology solutions for industry 4.0, automotive, geospatial, healthcare & life sciences, employee experience & education and financial services industries.

Daily tasks

• Design, develop, and maintain scalable microservices using Node.js, Golang, and Python
• 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 experience in backend development Strong commercial experience with TypeScript and Node.js (key requirement) Experience designing and developing scalable backend services and microservices Fluent German (C1/C2) – mandatory , with the ability to communicate confidently with business stakeholders and clients Experience working directly with clients , including requirements gathering, solution discussions, and ongoing collaboration 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 Nice to have Experience with Golang Experience with Python (especially in ETL processes) Familiarity with NestJS framework Knowledge of event-driven architectures (RabbitMQ, AWS SQS) Exposure to Angular or Svelte frontend technologies Knowledge of the energy or electric energy industry domain Experience working within highly agile environments Experience using AI tools in day-to-day work

Must have: Backend, TypeScript, Node.js, Scalable backend services, Microservices, AWS, PostgreSQL, Docker, Kubernetes, REST, gRPC, Communication skills, Problem-Solving

Nice to have: Golang, Python, ETL processes, NestJS, RabbitMQ, AWS SQS, Angular, Svelte