Software Engineer (£50k-£100k+ + Equity) at Opfyx Ltd

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers.

She will pick the best candidates from Jack's network.

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Job Title

Software Engineer

Salary

£50k-£100k+ + Equity

Company Description

Opfyx Ltd is a venture-backed London and New York startup founded in 2023, building a modern AI-enabled operations platform to replace legacy infrastructure for the world's largest airports, airlines, and ground handlers.

Job Description

Join a small, high-impact engineering team at Opfyx Ltd to architect mission-critical systems that replace decades-old aviation infrastructure. You will build and scale distributed architectures across the full stack, working directly on products used in live airport environments to optimize global air travel for billions of passengers.

Location

London, UK

Why this role is remarkable

• Shape the future of global aviation by replacing fragmented legacy systems with a modern, AI-enabled platform used by major international players.
• Join a well-capitalized, venture-backed startup in its early stages where you will work directly with a CTO who is an Apache Arrow and DataFusion contributor.
• Enjoy high ownership and visibility in a small team of three engineers, ensuring your architectural decisions have an immediate, massive impact on real-world operations.

What You Will Do

• Design, build, and operate highly available, mission-critical software for live aviation environments using Rust and Flutter.
• Collaborate with product stakeholders to develop distributed and federated architectures that support complex, real-world operational workflows.
• Improve reliability, performance, and user experience across the Opfyx AIR platform while helping to shape engineering practices as the team scales.

The ideal candidate

• A self-starter with strong technical instincts across the full stack and the ability to own projects end-to-end in a fast-moving environment.
• Experience or a strong willingness to master a high-performance stack including Rust, Flutter/Dart, gRPC, Arrow, and Postgres.
• A user-first mindset with the technical caliber to build scalable systems for an industry that moves billions of people annually.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.

Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.

We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.