Principal Full Stack Engineer - 8 Month Ftc in West Bromwich

Principal Full Stack EngineerWho We Are:We’re on a mission to close the world’s tech skills gap. We help organisations navigate the future of technology, combining human expertise, emerging tech and AI to deliver better outcomes, faster. Since 2014, we’ve worked side-by-side with clients to solve complex challenges, build high-performing teams, and create lasting capability. As technology continues to evolve, we believe the most successful organisations will be those that combine the best of both: human ingenuity AND intelligent technology. That belief is embedded in everything we do. We call it the genius of the AND: deep expertise AND practical delivery, innovation AND responsibility, ambitious work AND sustainable careers. Through our Guide, Build and Equip approach, we help organisations embrace change, deliver meaningful impact, and develop the skills they need to thrive in an increasingly agentic world.About you:You care deeply about producing high-quality work that delivers real valueYou’re comfortable navigating ambiguity and solving complex problems collaborativelyYou bring strong expertise in your craft, alongside a willingness to keep learningYou communicate clearly and build trust quickly with clients and teammatesYou’re pragmatic, adaptable and outcome-focusedYou enjoy sharing knowledge and helping others growYou value low-ego collaboration and enjoy working as part of multidisciplinary teamsWhat you’ll bring to the table:Lead the architectural vision and engineering standards across the full modern web stack, balancing cutting-edge tooling with scalable, resilient, and maintainable systemsDeep hands-on expertise with React 19, Node.Js and TypeScript, crafting performant, accessible, and responsive user interfacesProven track record architecting distributed web applications using Micro Frontends (MFE) and Vite Module Federation within scalable Nx monorepos (managed via pnpm)Strong mastery of modern UI styling, routing, and client state: leveraging Tailwind CSS v4, React Router v7, Zustand v5 for global state, and TanStack Query v5 for server-state caching and synchronizationExtensive experience designing and building robust API / BFF layers using Node.js with Express 5, automated type generation (Hey API / OpenAPI, zod-to-openapi, Swagger UI), and interfacing with legacy or on-prem systems (exposure to or knowledge of PHP is advantageous)Expertise in end-to-end type safety, runtime schema validation, and contract-driven development using Zod across both frontend applications and backend servicesFull-lifecycle testing leadership across unit, integration, and end-to-end layers using Vitest, Playwright, and Mock Service Worker (MSW v2)High commitment to developer experience (DX) and code quality standards using Oxlint, ESLint, Prettier, and HuskyPractical experience with progressive rollout strategies, targeted experimentation, and runtime configuration using LaunchDarklyEnd-to-end ownership of full-stack observability and telemetry leveraging Grafana Faro for client-side monitoring alongside Pino, AWS CloudWatch, and Grafana for backend systemsHands-on proficiency with cloud infrastructure and DevOps practices, including Terraform (IaC), AWS services (ECS Fargate, ALB, API Gateway), and automated GitLab CI/CD deployment pipelinesWhy join AND Digital?We’re building a culture where talented people can do meaningful work, continue growing, AND enjoy the journey along the way. Our model is designed to build belonging and connection: we’re organised into regional ‘Clubs’ of no more than 80 people, so you (and our clients) get the benefits of that small company feel while also being connected to a larger whole. Our Practice Areas act as a ‘second home’ for our ANDis - a place where you can innovate and learn with like-minded experts who care deeply about their craft, support each other generously, and believe the best ideas come from collaboration, not hierarchy. Our culture is rooted in our values of Wonder, Share and Delight, and shows up through five traits that we celebrate and nurture in all our ANDis: we value curiosity, ambition and a growth-mindset. We are deeply client-centric. Most important of all we are human - we create an inclusive environment where people feel trusted, supported and able to be themselves.By joining AND, we’ll provide:25 days bookable holiday + flexible