Senior Software Engineer (PHP)

Company: IRIS Software Group
Apply for the Senior Software Engineer (PHP)
Location: Greater London
Job Description:

Build software used by thousands. Influence technical direction. Mentor others.

IRIS is one of the UK’s largest privately held software companies and a major European provider of payroll and HR solutions. We’re now looking for a Senior Software Engineer to join our Dataplan team.

This is a hands on senior role combining deep technical contribution with delivery ownership and mentoring responsibility.

You’ll help shape and scale a cloud-based payroll and HR platform serving thousands of customers.

The Role

You’ll spend the majority of your time writing high quality code while also:

  • Driving end-to-end feature delivery
  • Partnering with Product on roadmap and prioritisation
  • Mentoring and supporting junior engineers
  • Leading best practice adoption (testing, CI/CD, observability)
  • Contributing to architectural decisions
  • Managing technical debt and platform health
  • Supporting incident resolution and continuous improvement

Core:

  • PHP (Laravel)
  • ReactJS
  • Relational databases
  • Docker
  • React Native
  • MariaDB
  • Jenkins
  • GitLab

About You

  • 5+ years’ experience in software engineering
  • Strong experience building and shipping scalable web applications
  • Comfortable in Agile environments with sprint-based delivery
  • Strong knowledge of CI/CD and DevOps principles
  • Experience supporting production systems
  • Passion for mentoring and raising engineering standards

Bonus points for experience in regulated sectors (finance, health, govtech) or working with AI tools to improve engineering productivity.

What You’ll Get

  • Opportunity to influence technical direction
  • Exposure to enterprise scale systems
  • Clear progression opportunities

If you’re a senior engineer who enjoys owning delivery, shaping solutions, and developing others — we’d love to hear from you.

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Posted: March 11th, 2026