Senior Backend Engineer - Profitable SaaS | TypeScript, NodeJS, AWS

ZipRecruiter; London; Hybrid; GBP 70,000 - 90,000; Full time

Job summary

A leading company in the food tech space seeks a Senior Backend Engineer to enhance and scale their product used by over 500 restaurants. This role offers significant equity opportunities, a supportive engineering culture, and the chance for real ownership and growth. Candidates are expected to have strong skills in TypeScript, NodeJS, and PostgreSQL, among other technologies, while embracing a collaborative team spirit.

Benefits

33 days holiday

Visa sponsorship available

Fortnightly team dinners

1-on-1 with founder

Access to roadmaps

Qualifications

• Proficient in TypeScript and NodeJS.
• Strong experience with containerised and serverless infrastructure (e.g. ECS, Lambda).
• Confident working with GraphQL APIs and performance optimisation.
• Expertise in relational databases, especially PostgreSQL.

Responsibilities

• Take ownership to tackle complex data challenges.
• Work with the founder and engineering team to improve the product.
• Deliver real outcomes while solving problems in small teams.

Skills

TypeScript

NodeJS

containerised and serverless infrastructure

GraphQL APIs

relational databases

PostgreSQL

AI technologies

Job description

Job Description

Profitable VC‑backed SMB SaaS | 1–3 % equity | UK visa sponsor | Build core product used by 500+ restaurants

About Jelly

Jelly is rebuilding the operating system for food businesses from the ground up. Kitchens in Michelin stars, pubs, cafes and hotels still run core ops on pen & paper; we give them a modern operating system. 500 + sites use Jelly today and we’re profitable.

Why Now

Jelly’s profitable and demand is outpacing what we can ship. We’re investing in stronger foundations to unlock more velocity, but we’re stretched. This is the moment for you to help us move faster, raise the bar, and shape how we build as we grow.

The Mission

Take real ownership, work with the founder and engineering team to tackle complex data challenges at the heart of our product, improving the product and the codebase as we scale.

You’ll Work With

Founder (product) • Engineers (shipping code) • Part-time Designer (UI/UX) • Customer Success Manager (Insight)

You might be a fit if

* You’ve shipped real things and dealt with their consequences

* You’ve worked in small teams and like solving problems end to end

* You know when to refactor and when to move on

* You care about users and outcomes more than abstractions

* You want to grow with a company, not just do a tour of duty

What You’ll Get

* Real ownership from day one

* £70–90k depending on experience

* Significant equity (1–3 %) and long‑term career upside

* A culture that values engineers, with protected time for cleanup and craft

* 1-on-1 with founder; access to roadmaps

* 33 days holiday, Hybrid London (Bank), Visa sponsorship available

* Fortnightly team dinners at customer restaurants

Minimum requirements:

* Proficient in TypeScript and NodeJS

* Strong experience with containerised and serverless infrastructure (e.g. ECS, Lambda)

* Confident working with GraphQL APIs, performance optimisation, and data design

* Expertise in relational databases, especially PostgreSQL, including performance tuning

* Exposure to or interest in AI technologies, including personal or side projects

Bonus preferences:

* PostgreSQL features, triggers and stored procedures.

* Experience with strictly typed such as GoLang.

* Experience with AWS solutions and services including ECS, Lambda and RDS.

* Experience with NoSQL and big data.

* Experience with Nexus GraphQL.

* Implementing AI APIs in an ETL pipeline or similar workflows

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)

Apply here or DM me (JJ) on WhatsApp [phone] with a real data or system tradeoff you’ve made under pressure and what you’d do differently now.

https://getjelly.notion.site/senior-backend-engineer-jelly