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Electrical Engineer | Harwell, Oxfordshire | Competitive Salary + Equity Most engineering roles ask you to optimise within known constraints. This one asks you to push beyond them. IONECH is a seed-stage energy hardware start-up based at Harwell, Oxfordshire. We're developing the Air Voltaic (AV) Cell — an energy-harvesting device that uses controlled interactions between electrons and oxygen in air to capture subtle natural differences in the environment, converting available exergy into electrical power. At scale, it sits at the base of the energy stack: a platform power source that reduces grid dependence across virtually every electrical use case. The science is novel, the engineering is hard, and the technology pushes at the boundaries of current understanding. We're looking for an Electrical Engineer who wants to work at that frontier. The work You'll own the full hardware development cycle from initial simulation in LTspice through PCB layout, prototyping, and structured experimentation. You’ll be working directly alongside scientists and engineers in our Harwell lab. This is hands-on work in a small, collaborative team, so you'll need to be self-motivated, adaptable, and comfortable with ambiguity. When something doesn't behave as expected, you'll be the person who figures out why. • Design and develop analogue and digital circuits for power electronics and energy management applications, • Perform circuit simulation using LTspice to validate designs before physical prototyping, • Create and iterate on PCB layouts, managing designs from schematic capture to Gerber output, • Develop current limiting, voltage protection, and safe shutdown mechanisms, • Consider EMI, grounding, isolation, and layout best practice in all designs, • Specify and integrate appropriate measurement and sensing systems, • Build, assemble, and solder prototype hardware in the laboratory, including surface-mount and through-hole components, • Assist in the design and running of structured experiments to characterise and validate hardware performance, • Conduct systematic failure analysis and root cause investigation, • Accurately document and analyse developmental progress, outcomes, and key findings, • Prepare technical reports, presentations, and documentation for internal and external audiences, • Identify knowledge gaps and opportunities for innovation and optimisation, • Ensure compliance with safety, environmental, and regulatory standards, and contribute to a safe, well-organised lab environment What we're looking for You'll need: • A degree (or equivalent experience) in Electrical Engineering, Electronic Engineering, or a closely related discipline, • Hands-on laboratory experience designing and building experiments, with the ability to take a circuit from concept to working prototype independently, • Practical soldering skills, including SMD and through-hole components, and the ability to rework and repair PCBs, • Proficiency in LTspice for circuit simulation, including transient, AC, and DC operating point analysis, • Experience in PCB design using a professional EDA tool (Altium Designer, KiCad, or Eagle), covering schematic capture, layout, DRC, and Gerber generation, • Strong analytical and problem-solving skills with a methodical approach to debugging and testing You'll stand out if you have: • Experience using a Ridley Engineering box for power supply loop gain and frequency response measurements, • Experience designing and fabricating custom inductors and transformers, • A background in power electronics design, including switch-mode power supplies, DC-DC converters, or inverter topologies, • Experience designing systems at or above 300 V DC, • Familiarity with elevated-voltage safety practices and isolation design, • Experience working in a start-up or product development environment What we offer • Competitive salary benchmarked to your experience and background., • Equity — you share in what we're building, • Private medical healthcare, • Company pension, • Flexible, trust-based working culture, • A well-equipped lab at the Harwell Science and Innovation Campus, • A small team where your work is visible and consequential from day one How to apply Send your CV and a covering letter (one page maximum) explaining why this problem interests you and which parts of your experience are most relevant to the essential criteria. We read every application. We don't use screening software.

Experimental Physicist | Harwell, Oxfordshire | Competitive Salary + Equity This is a role for a rare kind of physicist: one who is energised, not unsettled, by exploring unanswered questions. IONECH is a seed-stage energy hardware start-up based at Harwell, Oxfordshire. We're developing the Air Voltaic (AV) Cell — an energy-harvesting device that uses controlled interactions between electrons and oxygen in air to capture subtle natural differences in the environment, converting available exergy into electrical power. At scale, it sits at the base of the energy stack: a platform power source that reduces grid dependence across virtually every electrical use case. The science is novel, the engineering is hard, and the technology pushes at the boundaries of current understanding. Not every question has an answer yet and that's the point. We're looking for an Experimental Physicist who can make confident progress in that environment: someone who knows when to move, when to ask, and how to extract signal from incomplete information as the full picture gradually emerges. The work You'll design, build, and iterate on physical prototypes in our Harwell lab, working directly alongside chemists and engineers on a problem that sits at the intersection of plasma physics, field emission, and energy conversion. This is a ground-floor experimental role. Your hands-on work will directly shape the direction of the technology. You'll need to be comfortable designing and running experiments without a complete theoretical picture in hand, drawing on your own judgement while actively tapping into the range of specialisms around you; physicists, chemists, and engineers who each hold a piece of the puzzle. The team is collaborative by design; knowing when to seek input is a strength here, not a gap. • Design and fabricate experimental energy cell components and prototypes, • Develop and refine field emitter design, geometries, morphologies, and materials, iterating to optimise reactive oxygen species (ROS) yield, • Characterise field emission behaviour using Fowler-Nordheim analysis, • Manage low-energy plasma conditions (pressure, gas composition, ionisation density) to reliably generate ROS, • Work closely with chemists and physicists to investigate the ROS generation-consumption cycle, identifying catalytic surfaces and environments that maximise exothermic yield, • Build and maintain a diagnostic suite including vacuum/pressure systems, high-voltage emission measurement, mass spectrometry or optical emission spectroscopy, calorimetry, and thermal imaging, • Maintain rigorous experimental records, analyse results quantitatively, and contribute to internal technical reports, IP documentation, grant applications, and investor materials, • Identify knowledge gaps and opportunities for innovation and optimisation, • Ensure compliance with safety, environmental, and regulatory standards, and contribute to a safe, well-organised lab environment What we're looking for You'll need: • A PhD in experimental physics, plasma physics, applied physics, or a closely related field (candidates with a Master's degree plus substantial relevant industry experience will be considered), • Demonstrated hands-on experience building and operating vacuum or low-pressure plasma systems, • Strong working knowledge of field emission theory and cold cathode device physics, • Experience with high-voltage electronics design and safe operating practice, • Proficiency in experimental data acquisition and analysis (Python, MATLAB, or equivalent), including quantitative uncertainty estimation, • The ability to design and fabricate experimental apparatus independently You'll stand out if you have: • Familiarity with reactive oxygen species chemistry, electrochemical cells, or plasma-assisted catalysis, • Experience with thermoelectric or other solid-state energy conversion devices, • A background in nano-structured emitter fabrication, • Knowledge of optical emission spectroscopy or mass spectrometry for plasma diagnostics, • Prior start-up or small-team research experience, • Contributions to patents or commercialisation of laboratory technology What we offer • Competitive salary benchmarked to your experience and background, • Equity — you share in what we're building, • Private medical healthcare, • Company pension, • Flexible, trust-based working culture, • A well-equipped lab at the Harwell Science and Innovation Campus — on the doorstep of one of Europe's leading concentrations of physics and energy research, and close to the communities of RAL, UKAEA, and the broader Harwell deep tech ecosystem, • A small team where your work is visible and consequential from day one How to apply Send your CV and a covering letter (one page maximum) explaining why this problem interests you and which parts of your experience are most relevant to the essential criteria. We read every application. We don't use screening software.

Job Type Full-time Description At CloudHQ, our mission is to deliver flexible, efficient, and resilient data center solutions to businesses worldwide. Founded by a pioneer in data center REITs, we are a rapidly growing organization with state-of-the-art data center sites Globally in locations such as Ashburn, London, Frankfurt, Paris, Milan, Osaka and São Paulo. As we embark on an exciting phase of global growth, we are looking for top-tier talent to drive our success and shape the future of CloudHQ. Role Overview The Mechanical Project Manager will oversee the construction design, delivery, installation, testing, and commissioning of mechanical systems for data center construction projects across Europe. This role requires the management of all aspects of mechanical system delivery, including HVAC systems, cooling infrastructure, fire suppression systems, and fuel delivery systems. Operating as part of CloudHQ’s Construction Management team, the Mechanical Project Manager ensures the successful execution of mechanical scopes while maintaining safety, schedule adherence, and compliance with industry regulations. The candidate will work closely with contractors, vendors, consultants, and stakeholders to ensure seamless delivery of reliable and scalable mechanical systems for mission-critical facilities. Key Responsibilities Project Oversight for Mechanical Systems • Plan and manage the installation, testing, and commissioning of mechanical systems., • Ensure all mechanical systems meet CloudHQ’s technical standards, tenant-specific requirements, and compliance with local codes and sustainability regulations., • Troubleshoot and resolve construction challenges during installation, ensuring mechanical scopes stay aligned with project schedules., • Oversee and monitor project-specific plans for mechanical scopes, including detailed timelines, resource allocation, and cost management., • Coordinate with general contractors to ensure mechanical equipment procurement, delivery, and installation align with construction milestones., • Conduct on-site inspections, monitoring progress and ensuring work adheres to designs, contracts, and applicable building codes., • Facilitate regular project meetings, ensuring risks are identified early and mitigation plans are implemented effectively., • Manage relationships with general contractors, vendors, and suppliers for mechanical systems, ensuring proper execution and adherence to contracts., • Ensure mechanical equipment is delivered on time and meets quality standards specified in the project scope., • Ensure all electrical construction activities fully comply with local building codes, health and safety regulations, and CloudHQ standards for safety and performance., • Enforce strict adherence to contractor safety protocols during both installation and commissioning phases., • Promote a culture of safety on site and work closely with HSE teams to implement and monitor safety practices., • Provide subject matter expertise in mechanical construction design and installation phases., • Oversee factory witness testing and on-site commissioning of critical systems., • Lead value engineering efforts to optimize mechanical system costs while maintaining energy efficiency, performance, and reliability., • Safety & Regulatory Compliance, • Enforce strict compliance with building codes, health and safety standards, and CloudHQ’s corporate protocols for mechanical construction., • Monitor site activities to ensure contractors and subcontractors adhere to environmental sustainability practices and follow fire impairment safety processes., • Provide regular progress updates to senior management and stakeholders, detailing risks, opportunities, and milestones for mechanical system installations during construction phases., • Maintain comprehensive records for project schedules, compliance activities, and metrics related to mechanical scopes. Required Skills & Experience Technical Expertise in Mechanical Systems • Extensive knowledge of design, installation, and testing of mechanical systems for data centers or other mission-critical facilities., • Familiarity with mechanical redundancy principles and energy efficiency strategies for scalable infrastructure., • Construction Management Knowledge, • Proven experience managing large-scale mechanical scopes during the construction phase of data centers or similar industrial facilities., • Familiarity with building codes, permitting systems, and sustainability regulations governing mechanical systems for critical infrastructure projects., • Ability to independently manage complex construction schedules and risk strategies while delivering mechanical systems on time and within scope., • Strong ability to lead multidisciplinary teams, including contractors, suppliers, and CloudHQ stakeholders, during construction execution., • Effective communicator capable of providing actionable insights and recommendations to technical and non-technical audiences. Education: Degree in Mechanical Engineering, Construction Management, or Building Services Engineering. Experience: Minimum 5 years’ experience in construction management roles focusing on mechanical systems for data centers, industrial facilities, or other large-scale projects.Experience in commissioning processes for mechanical systems in high-tech or mission-critical environments. At CloudHQ, we are global leaders in data center construction, delivering world-class facilities that power the digital economy. As a Mechanical Project Manager, you will be at the forefront of managing critical systems that ensure operational reliability and efficiency for hyperscale infrastructure. Join our innovative team to work on cutting-edge projects, refine your expertise, and play a key role in shaping the next generation of mission-critical facilities across Europe.

A leading global reinsurance company based in Greater London is seeking a Power Engineer to provide risk engineering support to their Power Generation Underwriting Team. The ideal candidate should have extensive experience in power generation and risk engineering, alongside a degree in Electrical or

Responsibilities include assessing risk quality and conducting site surveys, while the ideal candidate will have a university degree and several years of experience in the Power Generation industry. A leading insurance provider is looking for a Power Risk Engineer to join their risk engineering team

This role involves fulfilling installation and commissioning activities in a power generation setting.

An engineering degree and experience in the Power Generation industry are essential for this dynamic role. A leading insurance provider in the UK is seeking a Power Risk Engineer to ensure risk engineering is commercially viable, providing excellent customer service and implementing policies. You wi

A power generation company is looking for an experienced Senior Power Generation Project Manager to lead major projects across the UK. The ideal candidate has 5+ years in project management within the power generation sector and familiarity with critical installations.

Site Quality Manager – Power Generation. Track record of working on EPC projects within Energy from Waste, power generation, or similar heavy industrial facilities.

A reputable engineering firm in the Greater London area is seeking an experienced Controls Engineer to contribute to large-scale power generation projects.

The successful candidate will work on large-scale power industry projects, focusing on the design and implementation of advanced control systems.

The role would suit a recruiter with a background in power generation seeking a career path into management or a permanent recruiter seeking a crossover into the global energy sector. Power Generation sectors are seeking a Permanent Consultant to join the team at their recently opened London office.

A leading recruitment firm seeks a Power Generation Risk Engineer to join a respected insurance company in London. This role involves surveying operational power plants, producing reports, and advising on engineering risks to shape smarter insurance decisions. Applicants should have over 10 years of

Mechanical, Electrical or Process engineer with several years asset-based experience in the Power Generation industry (design, installation/construction, commissioning, maintenance, or inspection superintendent, etc. Knowledge and experience with Thermal Power Generation (including Energy from Waste

We are seeking an experienced and innovative Senior Power Generation and Storage Technologist to join our dynamic energy solutions team, reporting to the Senior Director of Energy Solutions & Development. This collaborative role is integral to both shaping and delivering advanced power generation an

A leading engineering firm is seeking a Site Quality Manager for a power generation project in South East London.

A leading engineering recruitment firm is seeking a Power Generation Engineer in the United Kingdom. This role involves supporting underwriting decisions through assessing mechanical integrity and operational reliability of power generation assets.

The role involves supervising the installation of piping systems in a power generation setting, ensuring compliance with safety standards and project specifications.

Candidates should have significant industrial experience in power generation and excellent communication skills. A global insurance firm in London seeks a Power Generation Risk Engineer.

A leading engineering firm is seeking a Site Quality Manager in London to oversee all quality activities on-site.The role involves ensuring compliance with standards and management of Quality Control processes.The ideal candidate will have extensive experience in plant engineering or construction, a

Extensive industry experience as a Power Engineer with power generation companies. Provides risk engineering support to the SCOR SBS Power Generation Underwriting Team. He / she may support other SCOR underwriting lines where Power Generation, Utilities, and Machinery Breakdown perils are prevalent.

Specialist Risk Engineer - Power Generation. You will be a subject matter expert to Zurich underwriting, claims and the global risk engineering network on both traditional thermal power and renewable power related areas. Mechanical, Electrical or Process engineer with several years asset-based exper

Risk Engineer Power Generation page is loaded## Risk Engineer Power Generationlocations: Londontime type: Full timeposted on: Posted 2 Days Agojob requisition id: JR2600273Join us as a Power Generation Risk Engineer and join a world class team with a truly global business. Other advantageous

A leading global insurance provider is seeking a Specialist Risk Engineer specialized in Power Generation.

A recruitment firm specializing in energy and engineering sectors is seeking a Permanent Consultant to manage client relationships and recruit for various roles in the power generation industry.

The role involves designing detailed electrical schematics, integrating advanced components, and supporting innovative R&D projects in power generation.

Knowledge/experience of a range of power station types including conventional thermal, nuclear & renewable power generation facilities. Experience of power generation design/construction projects. Join us as a Power Generation Risk Engineer and join a world class team with a truly global business.

A leading global insurance firm seeks a Power Generation Risk Engineer in London. The successful candidate will have substantial experience in the power sector, communication expertise, and a solid engineering background.

Have you built your career inside power generation plants and know exactly where operational risks hide? Ready to step away from shift patterns or site pressure and use your expertise to shape smarter, safer decisions across global energy projects? If so, this Power Generation Risk Engineer role cou

Proven track record in power generation or related equipment sales. To drive profitable growth of Trime UK’s power generation product range by developing strong commercial relationships with rental companies, distributors, and contractors, expanding market share, and delivering consistent sales pe