[Hiring] Principal Engineer @IRIS

Role Description

As a Principal Engineer, you will be a senior technical leader responsible for shaping the architecture, engineering standards, and technical direction of our products. This is a highly hands-on role where you will lead from the front, working closely with engineering teams to deliver new features, integrations, platform enhancements, technical debt reduction initiatives, and high-quality customer outcomes.

You will collaborate with Product, Architecture, DevOps, Support, and other stakeholders across the business to ensure solutions are scalable, secure, and maintainable. Alongside driving technical excellence, you will mentor engineers, champion modern software development practices, and help teams continuously improve how they build and deliver software.

Working across a range of technologies and product domains, you will play a key role in modernising legacy platforms, solving complex technical challenges, and building cloud-native solutions that support our growing customer base.

Qualifications

• Significant experience in software engineering, including leadership of complex technical initiatives and distributed teams.
• Strong expertise within the Microsoft technology ecosystem, including C#, .NET, SQL Server, Azure, and related technologies.
• Experience designing and delivering scalable, cloud-native applications and services.
• Strong understanding of microservices, distributed systems, and modern software architecture principles.
• Ability to write, review, and guide the development of high-quality, well-tested, production-grade code.
• Experience working across multiple programming languages and technology stacks, demonstrating adaptability and a broad technical perspective.
• Deep understanding of software engineering best practices, development lifecycles, and agile delivery methodologies.
• Excellent problem-solving, communication, and stakeholder management skills.

Requirements

• Cloud platform certifications (Azure, AWS, or GCP).
• Experience with observability, monitoring, and performance optimisation practices.
• Experience modernising legacy applications and driving large-scale technical transformations.

Benefits

• Your work will influence millions globally.
• Continuous learning and career development opportunities.
• A culture that celebrates diversity and empowers every individual.

Company Description

IRIS Software Group is one of the UK's largest privately held software companies, trusted by 100,000+ businesses, schools and accountancy firms to keep their operations running. Our software pays 1 in 6 UK employees, supports over 12,000 schools, and is relied on by 91 of the top 100 UK accountancy firms.

We're a Great Place to Work® certified employer, recognised for our commitment to well-being, inclusion and development - and we're growing fast.