Node.js / TypeScript Developer (Backend-Focused)

💰 £60,000 - £90,000 | 🏠 Hybrid (4 days remote) | 📍 London

We’re supporting a purpose-driven tech company operating at the intersection of data, software, and healthcare, a business using technology to drive better health outcomes on a global scale.

They’re now looking for a Node Developer (Backend) who’s excited by the opportunity to build scalable, high-performing systems that make a tangible difference.

You’ll play a key role in shaping the technology that powers their modular platform — working closely with cross-functional teams to deliver new features, improve existing systems, and accelerate the product roadmap. This is a team that values ownership, creativity, and pragmatic problem-solving (sometimes the best solution isn’t starting from scratch).

The Opportunity:

In this role, you’ll be building and optimising backend systems and APIs that underpin the platform, working closely with cross-functional teams to deliver secure, scalable, and high-quality software.

You’ll have the freedom to take ownership of your projects, challenge how things are done, and use modern AI-driven tools to accelerate delivery and boost performance.

It’s a great fit for someone who enjoys autonomy, thrives in collaborative teams, and understands that building smarter doesn’t always mean building from scratch.

What You’ll Bring:

• Solid commercial experience with Node.js and TypeScript
• Strong understanding of API development (REST)
• Background working with SQL and NoSQL databases
• At least 3 years’ experience in backend software engineering
• Previous experience within healthcare (FHIR, HL7, EHRs, or LIMS) or exposure to Software as a Medical Device (SaMD) is highly desirable
• A proactive mindset and ability to adapt within a fast-moving environment

What’s on Offer:

• £60k–£90k salary (depending on experience)
• Flexible, remote-first setup (4 days WFH)
• “Take what you need” time off policy
• Private health insurance
• 14” MacBook Pro
• Pension contributions
• Equity options

At MRJ, we make efforts to truly do things differently. In partnering closely with this client, you’ll get the inside track on the opportunity, the team culture, and what it takes to land the role. We’ll be with you every step of the way.

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