Senior Machine Build Engineer

Senior Machine Build Engineer (Mechanical/Electrical/Commissioning)

Location: Portsmouth/Onsite

Hours: 39 Hours/week

Are you an experienced Senior Machine Build Engineer looking for your next career move? Do you want to work for a manufacturing company specialising in the innovative design and production of electrical / electronic components?

Harwin plc is a Portsmouth-based, family-owned precision engineering company on an ambitious global growth journey. With a strong international presence and a well-established partner network, the organisation has built a reputation over decades for quality, reliability, and long-term thinking.

As an employer, Harwin offers a distinctive environment shaped by its heritage and forward‑looking mindset. The business is currently investing significantly in technology, digital transformation, and ways of working, alongside the development of a new headquarters and state‑of‑the‑art manufacturing facility in Portsmouth.

This is a period of meaningful growth and evolution, with a clear ambition to scale capabilities and strengthen its global impact. At the same time, the values associated with family ownership remain central — fostering a culture that emphasises collaboration, accountability, and sustained success.

For those looking to develop their careers, Harwin provides the opportunity to contribute to a growing organisation while being part of a team that values both innovation and long‑term perspective.

You will take a lead role in machine build projects, ensuring high‑quality delivery from assembly through to commissioning:

• Build and assemble special purpose automated machinery to engineering drawings
• Manufacture and assemble sub‑assemblies with a high level of precision and attention to detail
• Work closely with design engineers on new automation developments and R&D challenges
• Follow electrical schematics and support electrical build, wiring, and fault finding
• Integrate and fault‑find pneumatic systems to specification
• Collaborate with commissioning teams to deliver fully operational machines
• Prove and test machinery post‑build, ensuring performance meets design requirements
• Support machine sequencing and optimisation for production efficiency
• Work to project timelines and deadlines set by Project Management
• Take ownership of specific machine builds, including commissioning and delivery

• Extensive experience in mechanical machine assembly and fitting
• Ability to interpret engineering drawings, CAD models, and assembly documentation
• Experience with pneumatic and electromechanical system integration
• Strong understanding of PLC‑controlled machinery and automation systems
• Ability to fault‑find across mechanical, electrical, and pneumatic systems
• Experience with sensors, actuators, motion systems, and control equipment
• Knowledge of machine build processes, commissioning, and validation
• Understanding of Design for Assembly (DFA) and Design for Manufacture (DFM) principles
• Hands‑on machining experience using mills, lathes, and other toolroom equipment
• Electrical wiring skills including crimping, terminating, and following schematics
• Strong problem‑solving skills with a proactive and collaborative approach

• Competitive Salary
• 25 days holiday plus bank/public holidays
• Additional 3 days off over the festive period
• Employee Assistance Programme
• Company pension scheme
• Life Cover 3x salary
• Company bonus scheme
• Cycle to Work Scheme

Please apply today with your CV for this exciting role of Senior Machine Build Engineer.