Back End Engineer

MANUAL; Greater London; Hybrid; GBP 70,000 - 110,000; Full time

Job summary

VOY is hiring an experienced Backend Engineer to join our growing global team. You will build core backend functionality across customer-facing and internal products, and design extensible platforms to rapidly launch new products. You will own APIs powering web and mobile platforms and integrate with third-party systems.

Join a fast-growing Healthtech scale‑up committed to improving patients' lives, with a hybrid work model and opportunities to influence architecture and product direction.

Qualifications

• Experience building web backends in Node.js/TypeScript or a willingness to learn on the job.
• Familiarity with scalable cloud architectures, design patterns and best practices.
• Practical experience with CI/CD and IaC (Infrastructure-as-code).
• Experience with databases & data management practices — relational databases & search engines.
• Experience with TDD and testable code — unit / integration / performance testing.
• Great verbal and written communication skills and the ability to explain complex ideas in a simple way to non‑engineering teammates.
• Ability to zoom in and out — balance low-level details with big‑picture tradeoffs.

Responsibilities

• Develop core functionality for customer-facing and internal products, systems and data platforms, and e-commerce capabilities using modern frameworks.
• Develop extensible platforms and architectures to quickly launch new products and lines of business.
• Develop and maintain integrations with third‑party systems.
• Develop the APIs powering the web & mobile platforms for our product portfolio.
• Collaborate with engineers, designers, QAs, product managers and stakeholders.
• Own your work end-to-end from scoping to production deployment and operations.

Skills

Node.js

TypeScript

Cloud architectures

CI/CD

IaC

Databases

TDD

Testing

Communication

Education

CS degree or equivalent

Job description

Overview

VOY is a fast growing Healthtech scale‑up, aiming to be the healthcare provider that millions of people trust as their partner to a long and healthy life. Our platform allows users to quickly and safely diagnose possible conditions, get treatment and support them afterwards to live a higher quality life. To do this we are building an all‑in‑one healthcare platform which brings together world‑leading medical expertise and technical excellence.

We are looking for an experienced Backend Engineer to join our growing global team and contribute to our mission to improve our patients' health and their lives.

Who You Are

• You have a genuine enthusiasm for software engineering and enjoy finding the right solution to the problem at hand and making practical tradeoffs.
• You are excited about contributing to a product that can drive positive change to the lives of millions of people around the world.
• You have a strong ownership mindset — “you build it, you run it”.
• You’re eager to continuously learn, grow and step out of your comfort zone.
• The idea of working in a successful, high‑growth startup in a fast‑paced role excites you.

What You Will Do

• Develop core functionality for our own customer‑facing and internal products, systems and data platforms, and e‑commerce capabilities using modern frameworks.
• Develop extensible platforms and architectures that make it possible to quickly and efficiently launch new products and lines of business.
• Develop and maintain integrations with third‑party systems.
• Develop the APIs powering the web & mobile platforms for our product portfolio.

Drive Impact in a Team Environment

• You’ll work with other software engineers, designers, QAs, product managers, business stakeholders and domain experts.
• You’ll drive impact and own your work end‑to‑end — from scoping & planning, architectural design decisions, implementation and testing, to production deployment and operations.

What We Need From You

• Experience building web backends in Node.js / TypeScript or a willingness to learn on the job.
• Familiarity with scalable cloud architectures, design patterns and best practices.
• Practical experience with CI/CD and IaC (Infrastructure‑as‑code).
• Experience with databases & data management practices — relational databases & search engines.
• Experience with TDD and testable code — unit / integration / performance testing.
• Great verbal and written communication skills and the ability to explain complex ideas in a simple way to non‑engineering teammates.
• Ability to zoom in and out — be comfortable with getting into the relevant low‑level details while also making the optimal tradeoffs for achieving the “big picture” goals.
• This is a hybrid role requiring 3 days per week in the office.

Experience You May Have

• A degree in CS or equivalent is a plus.
• Practical experience with building scalable & highly reliable cloud systems that support products used by millions of users around the world 24/7.
• Familiarity with modern JavaScript frameworks.
• Experience working in cross‑functional teams.
• An eye for user behaviour and design and attention to detail.

Healthcare is broken. We’re fixing it — and we need your help. Back in 2019, we launched MANUAL to tackle men’s health (starting with hair loss and sexual health). A few years later, we launched Voy with a focus on weight loss. But our ambition has always been bigger. Healthcare too often treats conditions in isolation, not people as a whole, and we’re on a mission to prove there’s a better way.

In 2025, we evolved from MANUAL into Voy, a brand built for the long game: supporting people through every stage of life, not just a single diagnosis. Today, we support over 1 million members across the UK, Germany and Brazil, delivering personalized care across weight loss, menopause, hair loss and TRT (with more categories on the way).

Ready to join us and change how healthcare feels for millions of people?