Mid-Level Full Stack Software Engineer

Who we are, what we do

Sensat is a geospatial AI business that powers advanced and highly functional digital twins for the world's most critical infrastructure projects. We partner with the world's largest construction, engineering and critical infrastructure companies, including National Grid, Network Rail, Heathrow and Severn Trent Water. We enable our customers to fight the costly and high-risk "Status Quo" of siloed data, people and processes.

Our AI-powered digital twins help teams digitally visualise, plan and manage projects, providing Project Confidence Through Clarity.

We are a high trust, high impact team, who offer purpose driven work. We operate with autonomy and flexibility in an agile, flat structure. We look for highly talented, adaptable and curious individuals who love solving meaningful problems and who share our resilient team spirit when facing challenges!

We are on track to more than double ARR in 2025, with a strong pipeline that positions us for another year of 100%+ ARR growth in 2026. Backed by over £25 million in funding from blue-chip investors like National Grid Partners and with imminent US market entry representing a significant value inflection point, this is an exciting time to join the Sensat team!

Data is at the core of our digital twin platform, bringing together vast, messy, multi-format project information and turning it into something that makes immediate sense. You’ll be part of a team of innovators helping organisations see risks earlier, coordinate better, and make decisions with confidence.

We’re looking for someone to bridge the gap between our massive geospatial datasets and a seamless user experience.

This is a high-trust, high-impact role. Sensat engineers solve problems rather than solely implement solutions. You’ll define the direction of our knowledge model, contribute across the platform to ensure our customers have a well rounded experience, and help the team continuously raise the bar.

If you’re after autonomy, developing novel solutions, and delivering real-world value, you’ll thrive here.

• Build responsive, accessible user interfaces that make complex geospatial and 2D/3D/4D spatial data intuitive to interact with.

• Collaborate with Product and Design to refine ideas and turn them into scalable, performant, and maintainable software solutions.

• Design and implement APIs to process and serve data, using Protocol Buffers and gRPC for service contracts.

• Work with relational databases (e.g.
  PostgreSQL
  ) to design schemas, write efficient queries, and ensure data integrity.

• Contribute to and improve the standards for software engineering, such as code quality, automated testing, documentation / knowledge sharing, and broader team processes.

• Contribute to maintaining the reliability of Sensat’s enterprise platform.

• You’ll have solid experience building full-stack web applications, with hands-on work across frontend, API, and database layers.

• Strong experience in a modern frontend framework (e.g.
  Angular 17+, React, or Vue) for building complex, data-rich applications.

• You’ll have significant experience with data-oriented web applications.

• Understanding of data modelling in a production context.

• Experience with backend languages for building scalable production systems. We use Go in our stack but experience in any language is welcome.

• You demonstrate a strong attention to detail and a commitment to clean code, balancing technical excellence with the practical outcomes required.

• You are an independent problem-solver who takes initiative on features, collaborates openly, and pitches in wherever the team needs support.

• You actively share your knowledge with the team, help onboard new members, and consistently look for ways to improve our day-to-day development workflow.

• 2+ years commercial development experience, demonstrating your ability to build, test, and ship reliable code.

• Hands on experience with gRPC and Protocol Buffers for API design and defining service contracts.

• Side-projects or participation in open source projects in a related field.

• Prior work in geospatial, web…