Lead Backend Engineer (Node.js/Golang/AWS) with German

O projekcie:
Tech Stack:- 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)- NestJSProject Description:
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.

Wymagania:
Required Qualifications:- 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 skillsNice 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

Codzienne zadania:
- 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