[Hiring] Principal Software Engineer @TPXimpact

Role Description

We’re looking for a Principal Software Engineer to shape the technical direction of high-profile projects and lead the delivery of modern, scalable software. We use technology to create impactful, human-centred solutions that make a difference to users and organisations. We believe great engineering happens when teams collaborate, learn, and build with purpose.

You’ll provide hands-on technical leadership, working closely with senior stakeholders, mentoring engineers across multiple teams, and line managing a small group of engineers while helping shape our approach to software delivery, architecture, and engineering culture.

Qualifications

• Extensive experience in software engineering, with a focus on large-scale, complex systems.
• Polyglot engineer comfortable working across multiple languages and frameworks (e.g., Python, Java, Kotlin, Node.js, C#, JavaScript, Express, React, Next.js).
• Passion for learning new technologies and helping others do the same.
• Proven track record of leading software architecture design and strategic technology initiatives.
• Strong expertise in cloud platforms, microservices, and modern software development practices.
• Experience with direct line management and mentoring junior to senior engineers.
• Excellent communication skills, with the ability to communicate complex technical concepts clearly to both technical and non-technical stakeholders.

Requirements

• Experience working in a consultancy environment, managing client relationships at a senior level.
• Experience delivering government or public sector projects.
• Eligible for (or holding) SC security clearance.
• Knowledge of AI, machine learning, or other emerging technologies relevant to software engineering.
• Experience promoting knowledge sharing through mentoring, blogs, talks, or internal communities.

Benefits

• 30 days holiday + bank holidays
• 2 volunteer days for causes that you are passionate about
• Working from home allowance
• Maternity Leave: 6 months, Paternity Leave: 3 months
• Life assurance
• Employer pension contribution of 5%
• Health cash plan
• Personal learning and development budget
• Employee Assistance Programme
• Access to equity in the business through a Share Incentive Plan
• Green incentive programmes including Electric Vehicle Leasing and the Cycle to Work Scheme
• Financial advice
• Health assessments