Senior Mechanical Engineer

LOCATION: CALMSDEN, CIRENCESTER, UK - WITH FIELD TRAVEL AS REQUIREDON-SITE: 5 DAYS THE LAST FRONTIERThe Arctic is a place of extremes: unforgiving, untamed, and undergoing rapid change. A literal defrosting reveals a multi-trillion-dollar opportunity spanning energy, defence, logistics, research, and infrastructure. Arctic Research and Development (ARD) was founded on a paradox. The Arctic is both the next great economic frontier and one of the most hostile environments on Earth. Rich in resources and strategically vital, yet bone-chillingly cold, dark for months, and fundamentally inhospitable to humans. This paradox—an explosion of activity in a place that resists human presence—is why we exist. Our solution is autonomy.We build systems that operate reliably and intelligently in the Arctic, so that humans don't always have to. Founded by record-holding pioneers with decades of polar experience, we take calculated risks on hard problems that matter. If you want to build and deploy ground-up technology with real-world impact, at an inflection point in history that won’t reappear, we’d like to talk. THE ROLEWe’re looking for a Senior Mechanical Engineer to own the design, build, and deployment of cold-hardened hardware — from field-ready energy systems to autonomous surface and sub-surface platforms. You’ll work from first principles to engineer real-world solutions that operate where failure isn’t an option. You’ll be responsible for end-to-end design, push hardware and material limits, and take your work into the field — from the workshop to the Arctic. CORE RESPONSIBILITIESDesign, test, and deliver Arctic-ready hardware from cradle to deployment for ARD’s product-lineDrive materials choices, joinery, sealing, and reliability under thermal/mechanical stressRun cold-chamber and durability testing, along with Test Engineer, to ensure performance in sub-zero climatesIntegrate closely with electrical, software, and deployment teams (systems, software, GIS, RF)Set QA standards to ensure our systems stay bulletproof in the harshest conditionsTravel to the Arctic for R&D field testing and meetings with industry repsREQUIRED EXPERIENCE5+ years industry experience developing hardware for extreme environmentsA degree in Mechanical or Aerospace Engineering with a portfolio of high-fidelity hardware developmentAdvanced skills in 3D CAD (SolidWorks, PDM)Experience with taking a product from concept design to production, with a strong grasp of DfMAHands-on prototype and testing experience, working alongside multi-disciplinary engineering teamsReadiness to operate in safe but cold environments while conducting R&D prototype field tests DESIRABLE SKILLSKnowledge of environmental and reliability testing (e.g. thermal cycling, vibration, shock)Familiarity of electrical systems to ensure a holistic approach to hardware designBasic understanding of RF systems and componentsPrevious experience working within an R&D workshopWHAT WE OFFERCompetitive compensationEquity: meaningful options as an early employee at an early-stage companyPrivate Healthcare for you and your family, including dental and opticalEnhanced maternity & paternity leaveReal field exposure: travel to Arctic sites and Outposts when needed (genuinely, not as a gimmick)Mission-driven culture: focus on impact, not hours loggedSmall team, real ownership: what you build matters and ships A note on who we want to hear fromWe're building for one of the most demanding environments on Earth and we believe diverse teams build more resilient systems. We actively welcome applications from people who are underrepresented in engineering - whether that's by gender, ethnicity, disability, or background. If you're not sure you meet every requirement, apply anyway and tell us what excites you about the problem.Find Jobs in United Kingdom on Arbeitnow