Principal Software Engineer

The Role

We’re looking for experienced Principal Software Engineers who enjoy solving complex technical problems, shaping architecture, and leading the design and delivery of high-quality software in production environments.

This role is suited to someone who combines strong hands‑on engineering capability with technical leadership. You’ll work across backend systems, cloud infrastructure, and distributed architectures, helping teams make sound technical decisions while staying close enough to the code to guide delivery in a practical way.

It’s a strong fit for someone who takes ownership, sets a high engineering bar, and enjoys influencing how systems are designed, built, and evolved over time.

• Design and deliver robust, scalable software systems using technologies like Java, C#/.Net, Type Script or Python.
• Lead architectural decisions across services, platforms, and cloud-native systems
• Build and guide the development of backend services, APIs, and event‑driven systems
• Work across AWS, Azure, or GCP to design reliable and secure cloud‑based solutions
• Apply agentic ways of working, using AI tools to support design, development, testing, and delivery
• Help teams adopt effective patterns for integrating AI into engineering workflows and systems
• Provide technical leadership to engineering teams, helping shape direction and unblock delivery
• Contribute hands‑on where needed, particularly in complex or high‑impact areas of implementation
• Drive improvements in engineering practices, system design, deployment processes, and operational maturity
• Support teams with technical mentoring, design reviews, and problem‑solving across the software lifecycle
• Collaborate with platform, product, and delivery teams to ensure systems are scalable, maintainable, and production‑ready
• Help define technical standards and influence how engineering is done across projects and teams

• Strong experience designing and delivering production‑grade software systems using technologies such as Java, C#/.Net, Type Script or Python.
• Significant experience working with cloud platforms such as AWS, Azure, or GCP
• Strong background in system design, architecture, and building scalable distributed systems
• Experience designing and building APIs, backend platforms, and event‑driven services
• Proven ability to make sound technical decisions and guide teams through complex engineering challenges
• Comfortable working across the full software delivery lifecycle, from design through to deployment and operation
• Strong grasp of software engineering fundamentals, patterns, and best practices
• Experience adopting agentic ways of working, using AI tools to enhance engineering productivity and delivery
• Ability to balance hands‑on delivery with technical leadership and strategic thinking
• Strong communication skills and the ability to work effectively with engineers, stakeholders, and cross‑functional teams

• Experience with frontend technologies such as React, Angular, or Vue
• Familiarity with infrastructure‑as‑code tools such as Terraform or Cloud Formation
• Experience with containerisation and orchestration using Docker and Kubernetes
• Exposure to CI/CD tooling such as Git Hub Actions, Git Lab CI, or similar
• Experience building or integrating AI‑driven features or systems
• Experience working in consulting, product, or cross‑functional delivery environments
• Interest in improving engineering standards, mentoring others, and shaping technical culture
• Experience working across multiple teams or projects in a senior technical leadership capacity

• Recognition That Matters
  : A discretionary annual performance bonus that rewards your impact and contribution to our success.
• Flexibility Built In
  :
  Flexible working arrangements and summer hours, because life isn’t 9 to 5, and balance matters.
• Financial Security
  : A highly competitive pension scheme with generous employer contributions, private healthcare, and life assurance for peace of mind.
• Health & Wellbeing
  :
  Employee Assistance Programme, mental health support, cycle‑to‑work scheme, and regular social events to keep our culture vibrant.
• Time to Recharge
  : 35 days holiday, enhanced maternity pay, and…