MASS
Senior Hardware-in-the-Loop Engineer

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Senior HIL Engineer (RF) – St Neots (PE19)
Permanent | On-site
£50,000 - £65,000
- 25 days annual leave inclusive of up to 3 days Christmas shut-down
- Buy or sell up to 5 days’ annual leave
- Annual Wellbeing allowance
- Two pension schemes to choose from
- Private Medical Insurance + discounts for additional family members
- Life Assurance scheme up to 4 x salary
- Share Save scheme
- Electric/Hybrid Car leasing scheme
- Cycle to work scheme
- Retail discounts
- Career development support
About the Role
Come and join our expanding Electronic Warfare Operations Support Group (EWOS) which is made up of 80+ electronic warfare specialists. From all manner of backgrounds, our engineers, scientists, and ex-military personnel combine their experience to help our customers achieve true operational potential and help keep their people and platforms safe.
Are you looking for a role that can design and build analogue RF circuits to integrate complex RF systems? Do you enjoy deploying and testing hardware models? This role will allow you to use your skills integrating and verifying novel conceptual, in-service, and legacy RF systems in a cutting-edge, first-of-its-kind synthetic range.
With the continual improvement in COTS RFSoC technologies and associated RF waveform performance, the proliferation through our synthetic range of these payloads will only increase. Combined with a drive for more synthetic trials to assure performance, train operators, and design tactics and procedures, this is an excellent growth area for your career.
Reasons to use Rodeo
I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?
Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.
Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.
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Graduate Consultant — 2026 Scheme
Why you're a good match
StrongYour economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.
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Why you're a good match
You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.
Experience fit
Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.
Only hits
No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.
Working full-time at our St Neots site, you will help deliver high-importance synthetic trials to a variety of government and industry partners, each with their own requirements to be verified. Your ability to ensure automated and repeatable solutions will greatly impact the success of these trials.
The invaluable experience you’ll bring, to help us achieve more.
Responsibilities
- Strong knowledge of RF analogue designs and testing (e.g. trade-offs between bandwidth and signal purity).
- Scaling and calibration activities to ensure synthetic environments are correctly represented to real-time HIL systems.
- Experience writing test automation scripts for real-time systems (MATLAB, Python, LabView etc.).
- Ability to solve problems in a methodical manner.
- STEM degree.
Desirable
- Experience using test bench equipment (signal generators, spectrum analysers, oscilloscopes, network analysers, power meters) to assure repeatable integration activities.
- Generation of test harnesses for hardware model interfaces (Analogue RF, Digital IQ, TCP/IP, UDP, JTAG, UART etc.)
- Familiarity with synchronisation and timing architectures.
- Network debugging and fault-finding (package/port level).
- Experience implementing ICDs/APIs and reviewing documentation for customer System-Under-Test (SUT).
- Experience with PCB design and manufacture.
- Safety-conscious approach when working with RF equipment.
- Knowledge of EW systems.


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Wellbeing
Wellbeing is at the core of our culture, allowing employees to flourish and to achieve their full potential. Our people are important to us, and we take pride in our wellbeing programmes and policies that support individuals including, mental health first aiders and readily available support through our extensive employee assistance programme.
Our Non-negotiables
Due to the highly secure nature of the projects that you will be involved with, you must be:
- A UK National and eligible to work in the UK
- Eligible to obtain and maintain a UK Government SC-level security clearance
Apply today to see how working for MASS could work for you!
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