Senior Software Engineer (PHP)

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

Our Tech Stack

Core:

PHP (Laravel)

ReactJS

JavaScript

Relational databases

Kubernetes

Docker

Linux

Desirable:

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.

We occasionally close vacancies early in the event that we receive a high volume of applications. Therefore we recommend you apply as soon as possible.

INDLOW

As one of the UK’s largest privately held software companies, IRIS Software Group exists to simplify the lives of businesses, schools and organisations.

IRIS provides software solutions and services that substantially enhance operational compliance, efficiency and accuracy, empowering the users of our technology to look forward with certainty and confidence.

Over 4 million parents use our software to connect with their child’s school, 18% of UK employees are paid via an IRIS payroll solution, 50,000 SMEs use IRIS cloud bookkeeping and 21,000 firms rely on us for legislative compliance.

Our operational software is the invisible but essential beating heart of our customers’ businesses, supporting them in a range of objectives, from maintaining legislative compliance to boosting engagement with stakeholders and enhancing productivity.

It’s vital these mission-critical functions work first time, every time.

That’s why IRIS helps businesses run the tough stuff, stay compliant and get operational tasks done right first time, every time – so they can focus on productivity and growth.

IRIS is a company built on hiring the best people; our people are our greatest assets.

They enable us to be the innovative, market-leading, and high-performing company that we are today.

We’re delighted to be certified as a Great Place to Work and one of the UK’s Best Workplaces for Women.

These accolades confirm that our employees have a consistently positive experience at IRIS, with the certifications considering employee wellbeing, diversity and inclusion, trust in management, effective communication and recognition/reward.

IRIS is committed to engaging, rewarding and empowering our employees, and this is central to what we do.

This is why we work to create an environment where employees feel like they are part of a team.

Email: IRIS.HR@iris.co.uk

Phone: 0344 815 5500