Senior Software Engineer – Node.js / Backend Development – London (Hybrid, 3 days onsite)
Are you the kind of Senior Software Engineer who enjoys taking something fast‑and‑scrappy and turning it into something scalable, elegant, and genuinely robust?
This is a chance for a Senior Software Engineer to join a small, but ambitious tech‑for‑good / IoT start‑up based in the London City Centre that’s building products to make sense of massive data streams. You’ll be part of a tight‑knit team (around ten people total, five software engineers), working on a genuinely greenfield platform with a modern stack and zero legacy.
The focus now is on maturing the codebase – re‑architecting, refactoring, testing, and scaling. As a Senior Software Engineer, you’ll play a key role in helping the team evolve from early‑stage speed to long‑term stability, with the freedom to influence both product direction and engineering quality.
What you’ll be doing:
- Building and scaling a Node.js application that sits at the core of the product.
- Designing and implementing new features for different sectors and use cases.
- Helping drive improvements in code quality, architecture, and testing practices.
- Working closely with product and engineering to prioritise, shape, and deliver features.
- Introducing best practices and guiding a shift towards cleaner, more maintainable code.
What we’re looking for:
- Strong hands‑on experience with Node.js – backend software development.
- Comfortable working across or picking up other tech as needed – e.g. AWS, React (experience with AWS & React is a bonus).
- Enthusiasm for writing clean, tested, production‑ready code.
- Experience (or interest) in data‑heavy systems, IoT, or connected devices.
- Ultimately, this is a backend focussed position, so as a Senior Software Engineer you’ll have to be comfortable with the backend nature of the role.
Seniority level
Mid‑Senior level
Employment type
Full‑time
Job function
Information Technology
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Senior Software Engineer employer: FYRE Global
At FYRE Global, we pride ourselves on fostering a dynamic and collaborative work culture that empowers our employees to take ownership of their roles. Located in Cookstown, we offer competitive benefits, opportunities for professional growth, and the chance to make a significant impact in a rapidly expanding SaaS environment. Join us to be part of a team that values innovation and hands-on problem-solving.
