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Lumina • England, United Kingdom
Role & seniority: Senior Test & Development Engineer
Stack/tools: HV/LV electrical testing, hydraulic test rigs, ECU bring-up, CAN bus diagnostics (CANalyzer/CANoe), oscilloscope, multimeter, power supplies, electronic loads, flashing/calibration tools, electrical/hydraulic schematics, labcar/prototype rigs, vehicle/subsystem test benches
Plan, execute and own HV, LV and hydraulic tests on labcars, prototypes, and test rigs; manage test assets across facilities
Support prototype build, commissioning, and launch (HV safe bring-up, hydraulic flushing, pressure setting, functional verification)
Develop test plans/criteria, install instrumentation, diagnose electrical/hydraulic issues, and generate detailed test reports with actionable feedback
5+ years in automotive/off-highway/construction machinery electrical testing, prototype/build support
Practical experience with automotive or heavy machinery electrical systems; ECU bring-up; CAN diagnostics
High-pressure hydraulic system build/commissioning; electrical/hydraulic test rig development
Strong hands-on lab/workshop capability; familiarity with HV safety and risk assessments
Proficiency with diagnostic tools, scopes, meters, and wiring/ hydraulic schematics
Experience with turnkey test asset ownership and external test facilities
Cross-functional collaboration with hardware/software teams; experience feeding back i
Job Title: Senior Test & Development Engineer
Department: Testing & Development
Location: Hybrid – Onsite when required – Midlands area.
We are LUMINA a start-up redefining the future of heavy machinery through next-generation electrification and advanced technology. Our mission is to create high-performance, safe, and efficient heavy equipment that leads the industry in capability and sustainability.
We are motivated, highly accountable, and work together to deliver at pace. We offer likeminded individuals the opportunity to truly own their own area and role within the team; shaping strategy and being fully responsible for delivery.
Role Overview
We are seeking a Senior Test & Development Engineer to support the prototype build, setup, commissioning, testing, and troubleshooting of vehicle and machine electrical and hydraulic systems at bench (machine-to-bench/yellow board/Labcar), rig, and early prototype Machine level.
The role requires an engineer who is equally comfortable working hands-on in the lab environment and workshop, collaborating with hardware and software engineering teams to diagnose issues, identify root causes, and drive robust system solutions through to maturity and development.
This position is critical to ensuring early prototype build and control quality, fast issue resolution, and effective feedback into design and software development loops.
What You’ll Do
Key Responsibilities
Plan and execute HV, LV and hydraulic testing on the labcar, prototype machines and subsystem test rigs. Full ownership of LUMINA test assets and execution whilst at internal and external test facilities. Support prototype build, commissioning and launch, including HV safe bring-up, hydraulic flushing, pressure setting and functional verification. Define, build and operate electrical, thermal and hydraulic test rigs for component and sub-system validation prior to vehicle integration. Develop test plans, procedures and acceptance criteria; install and manage HV-safe electrical instrumentation and hydraulic pressure, flow and temperature measurement. Perform functional, performance, thermal and durability testing under representative load cases and fault conditions. Diagnose and resolve electrical and hydraulic issues (e.g. isolation faults, inverter trips, pre-charge failures, CAN issues, leaks, pressure instability, valve response). Ensure compliance with HV and hydraulic safety procedures, risk assessments and safe working practices. Generate detailed test reports, summarizing test results, issues encountered, and recommendations for improvement. Engage with cross-functional teams to provide feedback and support ongoing development based on test outcomes.
What You’ll Bring
Required Skills and Competencies
Strong practical experience with automotive and/or construction machinery electrical systems Prototype electrical build and rework. High-pressure hydraulic system build and commissioning. ECU bring-up and commissioning CAN bus systems (diagnostics, logging, message analysis) Power distribution, relays, fusing, and grounding strategies Electrical schematics and wiring diagrams Hydraulic schematics
Experience using: Diagnostic tools (e.g. CANalyzer/CANoe or equivalent) Oscilloscope, multimeter, power supplies, electronic loads Flashing and calibration tools. Understanding of embedded systems interaction (HW/SW boundaries)
Experience
5+ years in Automotive, off-highway, construction machinery, agricultural, or heavy vehicle electrical, test and development, Vehicle commissioning, prototype and build support.
Qualifications
A bachelor's degree in electrical/mechanical engineering, Product Design Engineering or a related field. Applicants without a degree will also be considered if they have extensive relevant design/test and development experience.
Why Join Us?
Ground-breaking electrification of off-highway machines Collaborate with a world-class engineering team, solving unique challenges in machine and vehicle electrification. Work in a fast-paced, innovative start-up with full design ownership Predominantly working on-site, with flexibility for home-working where possible
We're building a team of driven individuals who take ownership, move fast, and hold themselves and each other to a high standard — and we know the best ideas come from diverse perspectives. Whatever your background or life experience, if you're excited by the role and ready to make an impact, we’d love to hear from you.
Our recruitment process is a quick call with our Talent Manager, followed by a Teams Interview with the Hiring Manager and other relevant team members.