Senior/Staff Software Engineer - Graphics

Sensat; City Of London; On-site; GBP 80,000 - 100,000; Full time

Job summary

A leading geospatial AI company in London seeks a skilled engineer to design and develop functionalities for large-scale 3D datasets. The role involves creating impactful solutions, mentoring team members, and contributing to the platform's standards. With 5+ years of experience in web and geospatial technologies, you will thrive in an innovative, high-trust environment that values autonomy. This position offers substantial personal development and benefits including a flexible working environment.

Benefits

30 days of annual leave

Flexible working environment

£500 personal development fund

Regular social events

Mental health support

Corporate health and wellbeing cash plan

MacBook and WFH setup allowance

Pension plan with employer contribution

Gym access through office membership

Cycle to work scheme

Qualifications

• Experience with relational databases, Golang, cloud infrastructure.
• Participation in open source projects in a related field is a plus.
• Prior work in geospatial, web mapping or construction industries.

Responsibilities

• Lead design and development of functionality for complex datasets.
• Stay updated on graphics and geospatial processing tech.
• Act as a bridge between Sensat Labs and production platform team.
• Contribute to software engineering standards like code quality.
• Help maintain reliability of Sensat’s enterprise platform.

Skills

Experience of rendering and optimising large scale 3D datasets

Significant expertise in 3D, WebGL/OpenGL

Experience with GPU-based rendering libraries

Keen eye for detail

Creative problem-solving

Ability to mentor others

5+ years commercial development experience

Tools

three.js

luma.gl

deck.gl

Babylon.js

Unreal Engine

GLUT

Job description

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!

The role - why it exists & why it’s interesting

Visualisation is a core pilar of our digital twin platform, bringing together vast, messy, multi-format project data 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 who will take end-to-end ownership, pushing the boundaries of what’s achievable via a web browser — processing geospatial & CAD datasets; deciding on optimal mezzanine formats and storage; and rendering them quickly, accurately, and beautifully.

This is a high-trust, high-impact role. Sensat engineers solve problems rather than solely implement solutions. You’ll own the roadmap for this pillar, 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, innovating at the cutting edge, and literally seeing your work deliver real-world value, you’ll thrive here.

Please note we are considering candidates at both Senior and Staff level.

What you’ll do

• Lead the design and development of functionality to serve large, complex 2D, 3D, and 4D datasets over the web.
• Keep on top of developments in graphics and geospatial processing tech, feed these into your roadmap, carry out spikes/research, and in turn influence the overall priorities of the platform.
• Act as a bridge between Sensat Labs (applied research) and the production platform team.
• 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.

What you'll bring

• Experience of rendering and optimising large scale 3D datasets from binary to server to web client.
• Significant expertise in 3D, WebGL/OpenGL, and a systems programming language (e.g. C, C++, Rust).
• Hands‑on experience with a GPU‑based rendering library such as three.js, luma.gl, deck.gl, Babylon.js, Unreal Engine, GLUT.
• You have a keen eye for detail, promote high standards, and have strong opinions but strike the right level of pragmatism.
• You’re a creative solver who learns fast, dynamically picking up the right new tech or habits that actually move the needle.
• You’ve actively mentored others on technical and operational matters, raising the bar and ensuring sustainable ways of working.
• 5+ years commercial development experience, demonstrating your ability to build, test, and ship reliable code.

Bonus Points For

• Side‑projects or participation in open source projects in a related field.
• Prior work in geospatial, web mapping or construction industries.
• Hands‑on experience with relational databases, Golang, cloud infrastructure, Angular 17+, OpenLayers.

What we’ll bring:

• 🌴 Take a break using your 30 days of annual leave (in addition to bank holidays)
• 🌍 A flexible working environment
• 🎓 Continue learning every day through your £500 personal development fund
• 🥳 Regular social events! We’ve been to the theatre, racing around the tracks go‑karting, had movie nights, watched the London Symphony Orchestra, line dancing lessons and murder mystery...
• ❤️ We’ve got your back, be it immediate access to mental health support through Spill or enhanced Family Leave for those welcoming a new arrival, we support you throughout your journey here.
• We care about our people and want to make essential healthcare accessible and affordable. That’s why we have an Opt‑in Corporate health and wellbeing cash plan provided through BHSF.
• 💻 We want to enable you to do your best work without having to think about whether your tech will work, so we’ll set you up with a MacBook, mouse & keyboard and £250 towards setting up your WFH environment.
• 💸 Pension: with Penfold. Employer contribution of 3%, employee contribution set at 5% but can be increased (relief at source or salary sacrifice).
• Access to the benefits of our Fora office membership, including access to their gyms and fitness classes, events and dog friendly office 🐶
• Other benefits including cycle to work scheme, season ticket loans, eye‑care vouchers, payroll giving

At this time, we are only able to accept applications from those who have a right to work in the United Kingdom. Our office is in Old Street, London.

Equality, Diversity and Inclusion

We are an equal opportunities employer and are committed to creating a diverse and inclusive workplace. We welcome applications from all individuals regardless of age, disability, gender, marriage or civil partnership status, pregnancy or maternity, race, religion or belief, sex or sexual orientation. All employment decisions are made on the basis of qualifications, merit, and business need, and our recruitment processes are conducted in accordance with the Equality Act 2010. If you require any adjustments during the recruitment process, please let us know.