Five open positions across Britain's hard tech sector this week — two software, two hardware, one ops.
Software Engineering & AI
Applied ML Researcher (Force Fields and Simulation) — CuspAI
Build machine learning force fields and molecular simulation infrastructure at CuspAI, the Cambridge founded materials discovery company that raised a $450M Series B and runs an AI Materials Foundry with NVIDIA and Samsung.
- Location: London (Hybrid)
Machine Learning Engineer — Gigaton
Work on deep reinforcement learning that autonomously controls cement kilns and other heavy industrial processes. Gigaton is a UCL and Cambridge spinout that raised a $26M Series A led by Plural in June 2026.
- Location: London (Hybrid)
Hardware Engineering
Laser Architect — Olix
Own the laser architecture behind Olix's Optical Tensor Processing Unit, a photonic AI accelerator aiming to ship in 2027. The London company is valued above $1B and has grown past 70 staff.
- Location: London (On-site)
- Salary: £235,000/yr
Senior CFD Engineer - Plasma Specialist — PhysicsX
Model plasma physics inside PhysicsX's AI native simulation platform, which uses neural operators to cut engineering simulation from days to seconds. The London company raised a £225M Series C in 2026.
- Location: London (Hybrid)
Commercial & Operations
Brand Manager - Marketing & Communications — Helsing
Shape the brand of Europe's most valuable defence tech company, now €12B valued, with a London HQ, a Plymouth factory building autonomous submarine hunting gliders, and £350M committed to UK investment.
- Location: London (Hybrid)
Browse the full board at hardtechuk.com/jobs. New roles added throughout the week.