Required skills
Job description
Project overview
Tech Stack:
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.
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.
- Node.js
- 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
- Design, develop, and maintain scalable backend services using Node.js as the primary technology stack
- Contribute to the development of microservices built with Golang and Python
- Collaborate directly with German-speaking clients and stakeholders to understand requirements and propose technical solutions
- Leading a development team of up to 10 members
- 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 professional experience in backend development at a Senior Software Engineer level
- Strong commercial experience with Node.js
- Fluent German (C1/C2) – mandatory, with the ability to communicate confidently with business stakeholders and clients
- Very good command of English
- Experience working directly with clients, including requirements gathering, solution discussions, and ongoing collaboration
- Experience designing and developing scalable backend services and microservices
- 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
Nice to have
- Experience with frontend technologies such as Angular, Svelte, and TypeScript is a plus
- Experienced in using AI tools in day-to-day workflow
- Knowledge of the energy or electric energy industry domain
- Experience working within highly agile environments
Project details
- Start: ASAP
- Location: Remote, Wrocław, Germany, DE, Brussels, PL
- Rate: 150-220 EUR/h
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