Do you want to work with the 15th fastest-growing startup in Europe? If so, you're in the right place.
AssetCool is one of Europe's fastest-growing startups, building the fastest path to more power on the grid.
We're tackling one of the most urgent challenges in the global energy transition: grid congestion. Electricity demand is rising fast; driven by electrification, AI and data centres. While traditional grid upgrades take years, demand exists today. The grid isn't ready.
AssetCool delivers robotic grid upgrades that physically increase the capacity of existing transmission lines by up to 30%, without rebuilding infrastructure. Using advanced robotics and proprietary photonic coatings, we unlock data-centre-scale capacity in weeks to months, not years and at a fraction of the cost and disruption of conventional approaches.
Our technology goes beyond capacity. We reduce losses, prevent corrosion, cut corona noise and generate high-value operational data that supports smarter grid operation and maintenance. Our systems are already deployed globally, and we just raised a big funding round from leading energy and climate investors.
AssetCool is one of the most innovation-driven companies in the UK energy sector and we're scaling fast If you're ambitious, mission-driven and excited to work on real deployments that strengthen the industry that really matters, AssetCool is where you can make it happen.
Role Overview
This is a senior technical role within AssetCool's robotics engineering team, leading the mechanical design of systems that operate directly on live high-voltage transmission lines.
You will take ownership of mechanical architecture from concept through to field deployment and production, working closely with electronics, embedded software, materials and high-voltage engineering teams.
This is a hands-on role suited to an engineer who enjoys solving real-world mechanical challenges in complex outdoor environments.
Key Responsibilities
Mechanical architecture & system design
Lead the design of conductor-traversing robots and drone-deployed payloads
Develop mechanisms capable of navigating transmission line hardware and harsh outdoor environments
Drive system design from concept through prototype, field testing and production
Design for high-voltage environments
Ensure mechanically robust designs suitable for operation in high electric-field environments
Support safe integration of mechanical, electrical and low-voltage subsystems
Materials, structures & validation
Lead materials selection and structural design for durability, environmental exposure and fatigue
Perform FEA, tolerance analysis and define validation strategies
Analyse field feedback and drive design improvements
Manufacturing & scaling
Apply DFM/DFA principles and support transition from prototype to production
Work with suppliers and manufacturing partners to optimise fabrication and assembly
Cross-functional collaboration
Work closely with electronics, embedded, coatings and field teams
Contribute to system design reviews, risk assessments and mentoring of junior engineers
Required Skills & Experience
BEng / MEng in Mechanical Engineering or related discipline.
7+ years professional experience in mechanical design of complex systems.
Ownership of products deployed in harsh or outdoor environments.
Strong CAD proficiency (SolidWorks, Fusion 360, or equivalent).
Experience with:
Precision mechanisms
Gear systems and motor integration
Structural analysis (FEA)
Composite material design
Strong understanding of:
Tolerance stack-up
Fatigue and durability
Environmental sealing
Experience designing for vibration and shock.
Hands-on prototype development and debugging experience.
Ability to make pragmatic engineering trade-offs in fast-moving environments.
Preferred Skills & Experience
Experience in robotics, aerospace, automotive or industrial systems
Experience designing for high-voltage or electrically sensitive environments
Knowledge of composite materials and galvanic isolation
Experience with IP-rated enclosure design
Experience working with overseas manufacturing partners
Experience integrating payloads with drones
Why Join AssetCool?
Work on groundbreaking technology revolutionizing the power grid.
Fast-growing startup with significant industry traction and large-scale projects.
Collaborative, innovation-driven team with exciting career growth opportunities.
Competitive salary, and flexible work options
Research shows that some candidates may hesitate to apply unless they meet every listed requirement. If this role excites you but your experience doesn't align perfectly with every qualification, we still encourage you to apply. You might be exactly who we're looking for, either for this role or another opportunity within our team.
We're proud to be an equal opportunities employer and welcome applications from people of all backgrounds. We're committed to building an inclusive, supportive workplace where everyone can thrive, regardless of age, disability, gender identity, marital or civil partnership status, pregnancy or maternity, race, religion or belief, sex, or sexual orientation.
If you have a disability or any specific requirements and need adjustments at any stage of the recruitment process, just let us know and we'll do our best to accommodate your needs.
We may close this vacancy early if we receive a high volume of applications. We encourage you to apply as soon as possible to avoid missing out.
We are not looking for agency support currently.