Principal Software Engineer

Principal Software Engineer

Salary: £80,000 - £85,000 + Benefits

Location: Hybrid 1 day every other week - Milton Keynes

We are currently looking for a Principal Software Engineer to join a growing, technology-led SaaS organisation that is investing heavily in its engineering capability and modern cloud platform. This is an opportunity to join a collaborative, forward-thinking engineering team where you'll have genuine influence over technical direction rather than simply delivering features.

Reporting into the CTO, the Principal Software Engineer will play a pivotal role in shaping software architecture, establishing engineering best practice, and mentoring other engineers across the business. This is a hands-on technical leadership position where you'll work closely with Product, Engineering and business stakeholders to solve complex technical challenges whilst ensuring the platform remains scalable, secure and fit for future growth.

If you enjoy balancing strategic thinking with hands-on engineering, influencing technical decisions and helping teams deliver high-quality software, this Principal Software Engineer opportunity offers the chance to make a significant impact within a business where technology is central to its success.

The Opportunity

As the Principal Software Engineer, you'll provide technical leadership across multiple projects while helping to shape the future direction of the engineering function.

Key responsibilities include:

Designing and delivering scalable, secure and maintainable software solutions.

Leading architectural decisions that balance innovation, performance and long-term sustainability.

Driving engineering best practice, coding standards and software quality across development teams.

Working closely with Product Managers and stakeholders to translate business requirements into robust technical solutions.

Mentoring and coaching engineers, helping to raise technical capability across the wider team.

Championing modern software engineering practices, automation and continuous improvement.

Exploring and adopting AI-powered development tools where they add measurable value.

Supporting the delivery of reliable, cloud-native SaaS products within a security-focused environment.

This role offers the opportunity to influence both technology strategy and engineering culture while remaining technically hands-on.

What's in it for you?

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