Senior Backend Engineer, Jelly

London, United Kingdom

Jelly

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About Jelly

Today, from Michelin-starred restaurants to your neighbourhood cafes, pen & paper and spreadsheets still rules over core operations - from costing menus, checking inventory to managing supplies. These operations are hidden from consumers’ eyes in what’s known as the Back-of-House, the beating heart of any food businesses.

While the Front-of-house - think point of sale, bookings, and food delivery - has attracted billions in investment, the Back has being left behind.

That’s where Jelly begins.

We are building a new system from the ground up for the Back-of-House - to change everything.

Since raising seed funding from Tier 1 venture investors, including those that put first monies into Revolut, Transferwise and Just Eat, we’ve reached profitability with a 10x growth in our customer base. 500+ food businesses now rely on us every day.

This is your opportunity to join our tight-knit team at a moment of inflection, where your impact will be magnified and your work seen across the industry.

Position

Jelly is entering its most important chapter. We process millions of messy food-industry transactions and turn them into powerful actions 500+ restaurants rely on every day.

Your goal is to build high-leverage systems that help automate the industry and reduce manual work to zero.

This isn’t a role for someone looking to coast. You’ll have ownership, visibility, and influence across the stack. Expect shipping to users every sprint then tighten them in the following sprints.

Why now

Product demand is outpacing us today
We’re profitable and stable, but the team is stretched
We’re investing in stronger foundations to unlock more velocity
You’ll shape not just what we build, but how we build as we grow

Who you’ll work with

JJ (Founder) brings full context and fast decision loop
Robert & Dol (Engineers) - your core teammates
Raul (Part-time Designer) - for UI/UX support
Abbie (Customer Success) - fast customer feedback loop

You might be a fit if

You turn big, messy problems into a working demo within two weeks.
You jump in to unblock a teammate instead of letting them spin.
You look out for new tools and share what works.
You leave both code and process cleaner than you found them.
You’ve stuck with at least one product for 3+ years and driven it forward.
You’re looking for a long-term home where shipping fast and building well both matter.

What You’ll Get

Real ownership from day one
A startup that’s shipping weekly, profitable, and in motion
Significant equity upside and long-term trajectory
A culture that values engineers, with protected ‘Engineer-Owned-Sprint’ for tech-debt
A team that’s honest, hungry, and playing for the long game

Your qualification

4+ years of TypeScript and NodeJS
4+ years commercial experience shipping and maintaining production-level software
Proficiency in software design patterns
Strong experience with containerised and serverless infrastructure
Expertise in relational databases

Will be a plus

GraphQL: built and consumed APIs at scale
Latest tooling: we use AI and computer vision to speed up internal data workflows
Ownership mindset: scope, build, test, and ship without hand-holding
Agile instincts: comfortable iterating fast and making smart tradeoffs
Testing culture: experience writing effective, maintainable automated tests

What we offer

Compensation

£70-90k salary depending on experience
UK Visa sponsor license available
Significant equity options reflecting the importance of this role, more than you would find elsewhere
33 days of paid leave per year (25 holidays + 8 bank holidays)

Perks

In-office 3+ days/week (Old Street, London), flexibility to work from home as needed
One-on-one mentorship from founder
Work directly with top chefs, restauranteurs, makers
Real product, real users, real feedback, every day
Fortnightly social dinners at our customer restaurants