iO Associates
Senior Rust Engineer | Outside IR35 | Hybrid

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Senior Rust Engineer | Outside IR35 | Hybrid
If you're a Rust Engineer who enjoys getting under the hood of complex systems and figuring out how things actually work, this could be an interesting one.
iO Associates are working with a technology business on a new contract requirement for an experienced Rust Engineer.
This isn't a standard backend build. You'll be working with a complex existing system that interacts directly with specialist physical hardware. A key part of the challenge will be reverse engineering the existing system, understanding how the different components interact and helping engineer what comes next.
It's the sort of project that needs someone who enjoys investigating difficult problems rather than simply picking up predefined tickets.
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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Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.
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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Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.
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.
What you'll be doing
- Working hands-on with a complex Rust-based system
- Reverse engineering and understanding existing system behaviour
- Investigating how the software interacts with specialist physical hardware
- Getting under the hood of an unfamiliar system and understanding how the different components work together
- Diagnosing and solving complex engineering problems
- Developing and improving the existing solution
- Working directly with the physical equipment when required
- Collaborating with the wider engineering team throughout the project
What we're looking for
- Strong commercial Rust experience
- Experience working with complex production software systems
- Comfortable reverse engineering existing systems
- Strong investigative and problem-solving skills
- Comfortable getting into an unfamiliar codebase and figuring out how it works
- Happy working with software that interacts with physical hardware
- Able to travel into Greater Manchester when access to the equipment is required


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The contract
- Outside IR35
- 5 days per week
- Hybrid, Greater Manchester
- Typically 1-2 days onsite when required, although this won't necessarily be every week
This is a particularly interesting opportunity for someone who likes the more challenging side of software engineering and wants a Rust project with a genuine real-world element to it.
If that sounds like your kind of challenge, apply or get in touch with Michael Collins at iO Associates for more information.
“It took my CV and asked me questions relevant to understanding what kind of jobs to suggest for me. Suggestions were almost perfect. Jobs were exactly what I’ve been looking for.”
Jessica, London
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