Salary: £45,000 - 85,000 per year Requirements: 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 Responsibilities: Writing high quality code Driving end-to-end feature delivery Partnering with Product on roadmap and prioritization 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 Technologies: AI CI/CD Cloud DevOps Web Docker GitLab JavaScript Jenkins Kubernetes Laravel Linux MariaDB PHP React React Native More: We are IRIS, one of the UKs largest privately held software companies and a major European provider of payroll and HR solutions. We are looking for a Senior Software Engineer to join our Dataplan team. This hands-on senior role combines deep technical contributions with delivery ownership and mentoring responsibility. You will help shape and scale a cloud-based payroll and HR platform serving thousands of customers, with opportunities to influence technical direction and exposure to enterprise-scale systems, along with clear progression opportunities. last updated 14 week of 2026