Senior Software Engineer - Flights

About Us

Perk (formerly Travel Perk) is the intelligent platform for travel and spend management. Built to tackle the time-consuming, manual work that gets in the way of real work, our tools automate everything from travel bookings to expenses, invoice processing, and more. By eliminating this shadow work that wastes hours, erodes morale, and saps innovation, we’re on a mission to power real work, with real impact.

We’re trusted by more than 10,000 companies worldwide, including Wise, On Running, Breitling, and Fabletics, and we’re tackling the 7 hours of lost productivity per employee each week, a $1.7 trillion problem
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Founded in 2015, Perk has grown into a global company of more than 1,800 people across 12 offices globally, with headquarters in London and Boston. We combine innovation, control, and simplicity to transform how businesses work and how people feel at work.

At Perk, we’re driven by our values, like being an owner, delivering a 7-star experience, and working as one team. We value curiosity, purpose, and mindset, not just knowledge, to unlock the power in your potential. Our talent team brings together leading minds from the travel and SaaS industries, representing over 70 countries. If you’re excited about having a real impact and shaping how millions of people experience work, we’d love you on the team.

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At Perk, we know that we feel most fulfilled when we can own the problem and the solution. This means taking responsibility for the entire lifecycle of a feature, from being part in understanding what our customers' pains are with our product team, design documents, coding to deployment, and measuring impact. You will see how your technical decisions move the needle for our customers daily.

We prioritize autonomy and pragmatism, giving you the space to solve complex problems without unnecessary friction. Engineering excellence here is measured by the reliability and simplicity of the systems you build to power a global platform.

Flights is one of Perk's fastest-growing engineering areas — expanding from one team to four since 2025, with more growth ahead.

The domain is genuinely complex. A single flight booking involves far more steps, suppliers, and failure modes than most people realise. Our job is to hide that complexity and deliver a seamless customer experience. We're not there yet — and that's the opportunity.

You'll be working across mission-driven teams tackling core platform reliability, self-serve post-booking, booking error recovery, and airline inventory scaling. Each team is cross-functional, so you'll work alongside product, design, and operations — not just engineers.

We know where we want to get to. We don't have all the answers for how to get there — and we want the people we hire to help us figure that out.

At Perk, we believe the best work happens when great people come together in small teams, with a shared sense of purpose. You'll join a cross-functional squad where you have real ownership of a piece of Perk’s domains, a genuine say in what gets built, and the autonomy to make it happen. Each team to decide how to contribute to Perk’s company goals.

We care about impact, and we trust our people to deliver it.

AI is embedded in how we work and what we build. On the engineering side, it spans the whole workflow: our Notion, Jira, Git Hub and Slack are AI-connected so you get up to speed fast, and day-to-day it helps with specifying features, writing and reviewing code, and automated AI PR review on every pull request. When something goes wrong in production, AI surfaces context across systems quickly.

We also embrace agentic coding, using AI as an active collaborator, not just a prompt-by-prompt co-pilot.

We expect candidates to use AI tools in our coding interviews. The bar is understanding your code and owning what you produce. That reflects how we work every day.

• Shape the bigger picture. You won't just build features, you'll refine the what to build and why. At Perk, senior engineers are…