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Senior Full Stack Engineer (React+TypeScript)

Senior Full Stack Engineer (React+TypeScript)

Hybrid

Leuven, Belgium

Senior

Full Time

12-12-2025

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Skills

Python JavaScript TypeScript PostgreSQL Docker Prioritization Machine Learning Azure react AWS NodeJs JavaScript/TypeScript

Job Specifications

The shift to solar energy is the fastest energy transition in history. The scale at which it’s happening is unprecedented and can only succeed with the right solutions to drive it forward. That’s where Sitemark comes in. Our all-in-one platform enhances productivity, quality, and performance across every stage of renewable energy projects, powered by drones and AI. Leading renewable energy companies trust Sitemark for over 10,000 projects in more than 82 countries.

Tasks

You will lead the end-to-end development of impactful features and projects - from initial speccing and prioritization through development, testing, and deployment. You will work closely with the product team and your engineering peers to help shape both what we build and how we build it. This includes actively contributing to product refinement, brainstorming, and prioritization sessions. Your work will have a direct impact on the quality, performance, and evolution of our platform.

Requirements

Strong fluency in modern JavaScript/TypeScript and React/NodeJS

Solid understanding of, or a strong interest in, full stack development and cloud infrastructure (PostgreSQL, Azure, AWS, Docker…).

Passionate about writing clean, maintainable, and reusable code, with a focus on best practices, testing, and long-term scalability.

Eagerness and ability to quickly learn and adapt to new technologies.

A strong drive to continuously improve software craftsmanship and actively share knowledge within the team.

A collaborative mindset, able to work autonomously in a small, fast-paced team.

Experience with Python and/or Machine Learning is a plus.

This role is a hybrid position, and it is preferred that you can come to the office two days a week.

Benefits

An exciting job that will offer you technical challenges every day

Ownership over areas within your expertise and development opportunities in other areas

Impact on the technical direction of the implementation and product itself

A competitive salary with fringe benefits

Opportunity to work in an internationally focused, fast-paced technology start-up in the renewable energy sector

Working (and playing) with a great team

About the Company

Sitemark provides an AI and robotics-powered platform designed to connect solar site data, teams, and processes across the entire project lifecycle—from design and construction to operation and maintenance. By empowering Asset Managers, EPCists, and O&M Teams to enhance quality, productivity, and performance at every stage, Sitemark ensures that solar sites are constructed to the highest standards and continue to deliver exceptional results throughout their lifecycle. With over 10,000 solar sites, 150 GWp, and deployments... Know more