Lead Full Stack Engineer

About JustPark

JustPark is the premier partner offering both B2B solutions for destinations and B2C services for drivers, giving us the best of both worlds. We simplify the entire parking experience. From venues and councils to private driveways, our platform makes it simple for drivers to find, book, and pay for parking, while empowering our operating partners to deliver exceptional parking experiences.

We've always believed parking should be easier, from end to end. That's why we, two trailblazing companies - ParkHub and JustPark - have come together to make that vision a reality.

ParkHub revolutionized event parking in the US, optimizing venue operations for a smoother, stress-free experience. JustPark transformed parking in the UK, turning the hunt for a spot into a simple, seamless task.

Now, as one unified company, we're combining expertise to offer a full-service, frictionless parking solution for both businesses and consumers.

About The Role

The Lead Full Stack Engineer drives technical excellence across JustPark's frontend and backend systems. This role combines architectural oversight, hands-on development, and technical leadership to deliver high-quality solutions that serve millions of users globally.

This role is best suited for engineers who are comfortable working across the full stack, with deeper expertise in some areas and a willingness to grow in others. Whether you're an established senior engineer ready to step into a leadership role, or an early-stage lead looking to grow your impact, we're interested in talking to you. You should be someone who thrives when working across boundaries, enjoys the variety of context-switching between user-facing features and backend services, and is eager to develop as a technical leader.

What You'll Be Working On

To give you more of an idea of the kind of projects you'll be working on, here are initiatives similar to what our engineering teams deliver:

• Internationalisation and white-labelling of products across frontend and backend systems to support customers in multiple countries

Strong technical background in modern frontend frameworks (e.g. React, Vue, or similar), JavaScript/TypeScript, and the broader frontend ecosystem

Commercial experience with PHP & Laravel (or similar frameworks like Symfony), along with proven experience in Go

Experience with relational databases, in-memory data stores, and query optimisation

Strong understanding of both frontend architecture patterns and backend system design

Experience with server-side rendering (SSR) and API design

Familiarity with observability, telemetry, and high-volume system monitoring

Strong testing practices across the stack (Cypress, Jest, React Testing Library, PHPUnit)

Understanding of CI/CD pipelines and containerisation

Understanding of web performance optimisation and core web vitals

A performance-focused mindset, particularly with reservation systems or transactional platforms

Experience breaking down projects into small, incremental, shippable releases

Strong problem-solving skills and attention to detail

Bonus Experience

• Experience with monorepo management and tooling (Yarn workspaces, Turborepo)
• Knowledge of payment systems integration
• Experience scaling applications for international markets
• Previous experience in the parking or mobility sector
• Experience with GraphQL and modern API integration patterns
• Knowledge of micro-frontend architectures
• Familiarity with time-series databases
• Experience working with distributed teams across different time zones
• Prior experience working in a startup or scaleup environment
  
  

What to Expect

In your first week:

Orientation and onboarding, setting up equipment and tools, meeting the team and understanding workflows. You'll review technical documentation, get familiar with our architecture across frontend and backend systems, and ship your first pull request to Production.

In your first month:

Contributing across the stack to get familiar with the codebase and workflow. Attending team meetings, sprint planning, and stand-ups. Learning about key projects, stakeholders, and technical practices. Starting to participate in code reviews and architectural discussions.

By the end of your 3rd month:

Delivering significant features spanning frontend and backend. Gaining a deep understanding of our system architecture. Actively contributing to planning, retrospectives, and technical strategy. Building strong working relationships and beginning to shape engineering practices across the team.

Growth Opportunities

• Opportunity to shape the full-stack strategy for a rapidly growing international company
• Increasing involvement in strategic technical decision-making
• Development of broader technology leadership skills
• Experience mentoring engineers across the stack
• Opportunity to influence engineering practices across the organisation
• Potential progression into Principal Engineer or broader engineering leadership roles
  
  

Benefits

Recharge your batteries

• Generous holiday policy: 25 days + bank holidays + managers can grant up to 5 extra days for high performance (total of 38 days a year)
• Free lunch on all office days via Feedr with daily meal choice
• Free snacks & drinks on all office days
  
  

Investment in you and your wellbeing

• Private Medical Insurance with Vitality
• Life assurance through YuLife
• £25 credit for eye tests per year
• Free O2 concert tickets through our partnership with the O2
  
  

Simplifying journeys so you can breathe easier

• £50 parking credit per month via JustPark
• Cycle-to-work salary sacrifice scheme
• EV salary sacrifice car scheme via Octopus Energy