Principal Software Engineer

iO Associates; London; On-site; GBP 65,000 - 75,000; Full time

Job summary

A leading recruitment consultancy is seeking a Principal Software Engineer to shape the future of digital services for a major public-sector organization. The role involves setting technical direction, solution design, and collaborating with platform engineering. Strong expertise in JavaScript and cloud platforms is crucial. Join a forward-thinking team committed to delivering impactful, user-friendly services.

Qualifications

• Strong software engineering expertise, ideally with JavaScript (React preferred).
• Experience in solution design and delivering end-to-end digital services.
• Background in consultancy.
• Knowledge of containerisation tools (Docker or Kubernetes) is a plus.
• A proactive, 'get things done' mindset.

Responsibilities

• Set the technical direction of software engineering.
• Take a hands-on role in solution design and development.
• Collaborate closely with platform engineering.
• Build new tools to improve access to services.

Skills

JavaScript (React preferred)

Cloud platforms (AWS, Azure, Cloudflare)

Solution design

Containerisation tools (Docker or Kubernetes)

Proactive mindset

Job description

Principal Software Engineer (Permanent)

Salary: £65,000 - £75,000

Location: UK-based

iO Associates is supporting a large public-sector organisation. They are looking for a Principal Software Engineer to help shape the future of digital services. You'll join a forward-thinking Head of Engineering who is transforming the team to deliver smarter, more efficient solutions for residents and staff.

What you'll be doing

• Setting the technical direction of software engineering and helping to define best practice.
• Taking a hands-on role in solution design and development.
• Collaborating closely with platform engineering to create robust, scalable services.
• Building new tools internally to improve access to services, automate processes, and enhance systems in housing and property services.

What we're looking for

• Strong software engineering expertise, ideally with JavaScript (React preferred) and knowledge of cloud platforms (AWS, Azure, Cloudflare).
• Experience in solution design and delivering end-to-end digital services.
• Background in consultancy
• Knowledge of containerisation tools (Docker or Kubernetes) is a plus.
• A proactive, "get things done" mindset with the confidence to challenge the status quo.
• Technically hands-on!

Why join?

• Influence how digital services are built for a major public-sector organisation.
• Work under a leader with central government and defence experience, committed to investing in automation and engineering talent.
• Help create functional, resident-focused tools that make real-world impact - no flashy gimmicks, just effective, user-friendly services.

Ready to take the lead and help build the future of digital services? Apply now to shape the engineering strategy and make a real impact.