Senior Software Engineer (PHP)

New Today

Permanent full time
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.
Please note:
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
Apply
Location:
SL3, Langley Marish, Slough
Job Type:
FullTime
Category:
IT

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