Senior Backend Engineer, Jelly

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

Additional details

Interview process

• Stage 1: Quick intro call with founder (15min)
• Stage 2: Technical interview (2 hours) on a real problem
• Stage 3: Conversation with team + founder (2hrs)