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Principal Software Engineer – Ruby on Rails

Cambridge
Posted about 19 hours ago
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Leading technology company in the compute platform space are looking to hire a Senior/Principal Software Engineer to join their web platform team in Cambridge.

This is a hybrid role, so you must live within commutable distance of Cambridge.

They are looking for a highly experienced software engineer with expertise in Ruby on Rails to take ownership of pivotal design, architecture, and development work on this key platform – which is the main portal for their customers, in terms of collaboration and sales.

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.

Start with a chat, not a search bar

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.

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Graduate Consultant — 2026 Scheme

PwC·London, UK
£35,000/yr

Why you're a good match

Strong

Your 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.

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Strong

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.

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Strong

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.

This is an individual contributor role for an experienced, hands-on engineer who leads through influence: setting technical direction, raising the bar through code review, and shipping production code every week alongside the rest of the team.

Key Skills/experience Required

  • Expertise in building and operating Ruby applications in production, with a track record of leading Ruby projects from design through to production operations
  • Experience scaling complex web applications
  • An ability to develop technical strategy, both individually and as part of a team

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Highly desirable:

  • Experience building and operating real-time services (e.g. WebRTC, Server-Sent Events)
  • Experience with monoliths, microservices, and everything in between
  • Experience with Go or React
  • Involvement in open source software, whether as a maintainer or a contributor

Great opportunity to be a core member of a highly skilled team, working on key projects!

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Skills

Ruby on Rails
Web Applications
Technical Strategy
Real-Time Services
WebRTC
Server-Sent Events
Monoliths
Microservices
Go
React
Open Source Software
Code Review
Production Code
Design
Architecture
Development

Location

Cambridge, England, United Kingdom

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