Principal Go Backend Developer

Principal Go Backend Developer

Utrecht, NetherlandsOn site, 5 days per week, office first environment

The opportunity

Balanz Energy is looking for a Principal Go Backend Developer to help shape the backend architecture of a growing energy technology platform.

You will join a small engineering team building systems that support automated energy trading, renewable asset optimisation, forecasting, and market decision making. The work sits at the intersection of software engineering and the physical energy market, where system performance and decision quality have a direct commercial impact.

This is a hands on Principal role. You will remain close to the code while taking ownership of architectural decisions, technical standards, and the evolution of the platform.

About Balanz Energy

Balanz Energy is building infrastructure to help renewable energy providers operate their assets more intelligently.

As solar and wind generation continues to grow, energy production becomes increasingly dependent on weather conditions. Balanz Energy combines forecasting, market data, automated trading, and asset optimisation to help customers make better decisions in real time.

The company recently went live in the Dutch market and is building towards significant growth. This creates an opportunity to join at an early stage and have genuine influence over how the technology develops.

Engineering environment

The engineering team is intentionally small and highly autonomous, with approximately five developers expected by the end of the year.

The stack is evolving alongside the product and currently includes:

• Go as the primary backend language

• Python for machine learning workloads and scripting

• Kubernetes for infrastructure and orchestration

• PostgreSQL and ClickHouse for data storage and analytics

• Redis for caching and fast data access

• NATS JetStream for messaging and event driven communication

• Svelte on the frontend

AI assisted development is part of the team's normal workflow, with coding agents and other AI tooling used to accelerate development and reduce repetitive work.

The expectation is that engineers use these tools intelligently while retaining ownership of design, implementation, testing, and technical decisions.

What you will do

• Shape the architecture and technical direction of the backend platform

• Design and develop high performance services in Go

• Build systems capable of handling large volumes of market, weather, and asset data