Principal Engineer / Lead Full Stack Engineer

Remote - Hybrid. UK Only. 4-6 office visits per year.

TypeScript | Node.js | Microservices | SaaS Platform

We''re partnering with a high-growth UK SaaS business that is investing heavily in its engineering function and looking for an experienced Principal or Lead Engineer to help shape the future of its customer-facing platforms.

This is a hands-on technical leadership role where you''ll work closely with Product, Engineering and Business stakeholders to design, build and scale modern software solutions used by thousands of customers.

Working within a mature engineering environment, you''ll help drive architectural decisions, influence engineering standards, mentor developers and lead the delivery of high-quality software across a modern cloud-based platform.

Tech Stack

• TypeScript
• js & Microservices
• js
• Redis
• SQL Server & SingleStore
• AWS
• CI/CD & DevSecOps

What You''ll Be Doing

• Leading solution design, architecture and technical decision-making
• Collaborating with Product teams to shape requirements and delivery plans
• Building and deploying production software in a fast-paced environment
• Driving engineering best practices, code quality and maintainability
• Supporting systems in production and improving platform performance
• Acting as a senior technical leader within an AI-enabled engineering environment

What We''re Looking For

• Strong commercial experience with TypeScript and modern JavaScript development
• Previous experience in a Staff Engineer, Principal Engineer, Lead Engineer or Senior Technical Leadership role
• Experience building and scaling SaaS or product-led platforms
• Strong understanding of software architecture, design patterns and clean code principles
• Experience working in cloud-native, CI/CD and DevSecOps environments
• Passion for engineering excellence, mentoring others and solving complex technical challenges
• Interest in AI-assisted software development and modern engineering practices

What''s On Offer

• Competitive salary (-80k100k) plus benefits
• Flexible remote-first working with limited onsite requirements
• Significant technical influence across products and platform direction
• Modern engineering culture focused on quality, innovation and continuous improvement
• Opportunity to join a successful and growing UK technology company at an exciting stage of growth

For more information, please contact Spectrum IT Recruitment.

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.