Available Vacancies
Senior Design Engineer
Effective Date: 11th May 2026
Department: Engineering
Office: Letchworth – Hertfordshire
Summary of Functions
To adopt in full the Design Gate Status for each design engineering project being delivered and present status and evidence of compliance as required, to project teams, management, and customer. Undertake manufacturing engineering investigations of facilities and processes with the aim of improving productivity, quality and/or resolving manufacturing problems. Ensure that the deliverables from design to Operations are packaged and presented in line with the Product Realisation and in the correct format. Identify and implement workplace standards ensuring a standardised way of working, whilst ensuring good housekeeping is applied by all engineers and that this standard is fully maintained. Participate in independent Peer reviews, results captured and communicated for product designs, both electronic and mechanical as needed.
Mentor and develop the NPI engineers, design engineers, graduate engineers, technical apprentices, and other production staff in manufacturing engineering competencies. Support design, quality, projects, procurement, and any other relevant department, as necessary.
Key Duties and Responsibilities
Responsible for ensuring design projects are effectively managed to deliver to specification and project budget. Working with Sales to ensure technical and non-technical requirements are understood, and within capability and working with the Design Engineers to interpret and deliver on the Technical Sales requirements. Assisting with Production in a Technical role to optimise manufacturing and test processes to design in efficiency and quality. This includes undertaking associated re-approval exercises as necessary and ensuring that the design, development and use of process, plant and equipment is safe, cost effective, controlled, and configured with company standards, customer specification and current legislation.
- Supporting the Head of Engineering.
- Customer engagement as required.
- Controlling design.
- Documentation and sign off.
- System level block diagram.
- Generation and approvals.
- Schematic Capture.
- PCB Layout.
- Simulations & analysis.
- Component analysis and selection.
- Generation of data packs.
- ATP generation and validation.
- Test verification.
- FAI / FAT.
- VCRM compilation.
- Support production with debug.
- Component Library Management.
Knowledge
- Design engineering of Digital/Analogue Power Supply Modules.
- Experience in developing, capturing, and reviewing system level power requirements.
- Power supply magnetics design experience, planar magnetics design experience.
- Experience with low and high-power levels and frequency ranges, isolated and non-isolated DC/DC and AC/DC power conversion designs (topologies, components, control, packaging).
- Familiarity with EMC/EMI, thermal stress, and other environmental issues and their impact on design methodology.
- Detailed knowledge of manufacturing techniques and processes, mechanical assembly, cable assembly, electronics testing, PCB assembly, etc.
- Knowledge of design of PCBs, mechanical housings and manufacture, good knowledge and experience of process document generation.
- Knowledge of manufacturing systems and knowledge of MRP/ERP systems. Practical knowledge in managing projects and project activity.
- Application of company design and drawing standards. Application of quality standards and procedures.
- Configuration management and application of configuration.
- Ability to produce or assist in the production of technical product specifications (drawings, reports, instructions, specifications, etc).
- Experience of product testing and product qualification documentation.
Skills & Experience
- People, team management & development.
- Proven track record and a wide range of manufacturing engineering experience, preferably in high value, low volume industries.
- Excellent interpersonal skills and an ability to interact at all levels.
- Competent in writing technical reports and in presenting technical information.
- Display leadership skills and is confident to work in multi-discipline team environments.
- Able to work effectively with others towards common objectives.
- Determination to succeed and a high degree of flexibility.
- Able to effectively prioritise conflicting demands.
- Clear and unambiguous in technical communication.
- Able to solve logical problems and analyse complex technical data.
- Schematic and PCB layout skills, preferably using Altium PCB Designer.
- Familiarity with Solidworks 3D Designer an advantage.
Qualifications
Essential: HNC/D in appropriate discipline or equivalent experience.
Preferred: Degree in appropriate discipline or equivalent experience, incorporated engineer with experience in relevant industry.
On-systems employee core values:
- Team player sharing in the 'greater good of the company'
- Happy person with a 'can do' attitude
- To be fair, helpful, respectful and likeable
- Act in a professional manner with honesty and integrity
- Be proactive and organised, with a focus on the customer
- Be process driven with good, reliable communication
- Have a commitment for self-improvement
Special Requirements
Willing and able to obtain full security clearance.
Reasons to work for On-systems
We offer 25 days holiday every year plus 8 bank holidays, giving you plenty of time to recharge. If you want extra days off, you can request them with your line manager’s permission. To make your birthday even better, we give you an additional day off to celebrate, on us!
Planning for the future is important. That’s why we contribute 5% to your pension while you contribute 3%. It’s a straightforward way to help boost your savings over time without you having to think too much about it.
We believe in giving back. When agreed with your manager, you’re encouraged to take volunteer days to support causes close to your heart or help out in your local community. It’s a great chance to make a positive impact outside of work.
Every year we carry out pay reviews and link bonuses to both how well the business performs and your personal development. Annual appraisals give you a chance to discuss your progress, set goals and ask for training opportunities to help you grow your skills and career.
When the company hits its targets, we’re keen to reward our team with a bonus. It’s our way of sharing success and recognising the hard work everyone puts in throughout the year.
We understand life can be busy, so we offer flexible hours. For office teams, core hours run from 8:30am to 3pm, and for production, it’s 8am to 4:30pm. Plus, everyone gets a half-day off on Fridays to start the weekend early and unwind.
With your line manager’s agreement, you can work from home occasionally. This offers a balance between office life and working remotely, so you can manage your time in a way that suits you best.
Your health matters to us. We provide private healthcare cover, which can be extended to your family if you’d like, giving peace of mind when it comes to medical care.
We invest in your future by funding courses that help you develop professionally and personally. Whether it’s building new skills or advancing current ones, we want to support your progress.
If you’re unwell, you’ll receive paid sick leave for up to two weeks each year. It’s important you take the time to recover fully without worrying about your income.
Every week, you can send a little treat in a mug to a colleague who’s gone above and beyond. It’s a simple but meaningful way to say thank you and celebrate everyday efforts.
Our monthly awards shine a spotlight on those who have really stood out. You’ll get to vote for your peers, and winners receive a gift of their choice as a token of appreciation.
We believe working together should be fun. Departments hold offsite meetings with lunches, and we organise social events like escape rooms or go-karting to help build strong team bonds outside the office.
To keep you fuelled, we provide free coffee and tea daily. Plus, parking is free on-site, saving you time and hassle when you come to work.