Leading Fire Safety and Data Intelligence SaaS Firm | Software Engineer | London (Hybrid) | £55-65k + bonus

About the Company

Our client is a fast-scaling B2B SaaS business that’s transforming fire safety and building compliance across the UK. With a platform already recognised as the most comprehensive and user-friendly in its space, they have doubled in size every 12 months and growth is only accelerating!

Their platform is the most comprehensive data-driven solution on the market, transforming the way organisations manage residential fire and building safety. That impact is fuelling their growth and it’s why so many are choosing to work with them.

With a powerful data backbone, they offer real opportunities to drive new features and insights using Data Science and AI.

They’re building the foundations of that capability in-house and looking for smart, technically curious people to join them on the journey. They\'re a brilliant, people-first team with a culture of personal and professional growth; if you\'re looking to boost your career and learn from some of the best - all the while shipping market-leading products - then this could be the role for you.

About the Role

This is a hands-on engineering role with exposure to a range of systems and technologies. You’ll help shape the future of their tech stack as they move from a monolithic PHP codebase to a modern, service-based NodeJS environment. You’ll work alongside experienced engineers on architectural decisions, back-end services, and iterative improvements to legacy systems.

You don’t need to be an expert in everything yet – but you do need solid practical experience, strong problem-solving skills, and a willingness to get stuck in. This is a perfect role for an engineer who wants to grow fast in a high-impact environment. They don’t even necessarily need you to have extensive commercial experience in the languages they already use – they’re looking for people with an engineering mindset who love to solve real-world problems with software. If that means building a Kafka queue one moment and fiddling with some C++ another, so be it.

Responsibilities

• Develop and maintain backend services using NodeJS.
• Contribute to architectural decisions as they decouple legacy systems.
• Work collaboratively on a shared codebase with Git, CI/CD, and DevOps tools.
• Engage with their PHP monolith as needed, helping reduce technical debt and fix bugs that affect their customers.
• Work closely with product, design, and data teams to build new features.
• Share knowledge through code reviews, pair programming, and mentoring.
• Support ongoing improvements in testing, deployment, and code quality

Requirements

• Exposure to or understanding of service-based or loosely coupled architecture.
• Familiarity with message brokers (e.g., Kafka, SNS, or similar) is a bonus.
• Willingness to engage with legacy PHP code when required.
• Strong understanding of version control, Git, and collaborative workflows.
• Interest in or experience with AWS, CI/CD pipelines, and DevOps best practices.
• Experience with data workflows, ETL pipelines, or data warehousing tools (e.g. BigQuery, RedShift) is a plus.

The Person

They\’re looking for someone who:

• Is passionate about software and technology.
• Communicates clearly and confidently – in person and in writing.
• Works well independently and manages their own time effectively.
• Takes ownership of challenges and thrives on solving real problems.
• Is curious, analytical, and data aware.
• Welcomes feedback and views mistakes as learning opportunities.
• Wants to grow their technical and professional skills in a supportive team

Compensation and Benefits

• Salary of £55 – 65K
• Hybrid working arrangement (London-based with office presence 2 days per week).
• Supportive, fast-moving team environment with mentoring and growth opportunities.

If you’re a driven engineer who wants to grow fast, contribute meaningfully, and work in a collaborative, mission-led team – we’d love to hear from you!