Mid - Full Stack Developer

Position Summary As a Mid-Level fullstack developer at CST Training, you will design, build and maintain web applications across the entire stack. Joining a small but talented development team and reporting directly to the Lead Developer, you will ship features end-to-end - from database schema design through to building full applications including APIs, backend services and polished, responsive user interfaces. This is a hands-on role where your work will have a direct, visible impact on our learners and operations., * Build and maintain fullstack web applications using React (TSX/JSX) on the frontend.

• Develop APIs and backend services using Node.js to support frontend functionality.
• Design, implement, and optimise MySQL databases, including schema design, queries, and performance tuning.
• Write clean, maintainable, well-tested code that scales.
• Collaborate with stakeholders to translate business requirements into technical solutions.
• Troubleshoot, debug, and resolve issues across the stack.
• Participate in planning, estimation, and architectural discussions., * Stay up to date with the latest developments in the React, Node.js, and wider web ecosystem.
• Receive mentorship and code review from the Lead Developer.
• Participate in relevant training and certification programs.
• Contribute to the improvement of internal engineering practices and tooling.
• Opportunity to progress into senior development roles or specialise in areas such as backend architecture, DevOps, or technical leadership.

Career Growth

• Advance to a Senior Fullstack Developer position.
• Specialise in key areas such as backend systems, frontend architecture, or DevOps.
• Take ownership of larger projects and contribute to technical direction.
• Gain recognition as a technical expert within CST Training and beyond.

Do you have experience in REST?, * 3+ years of professional experience as a fullstack developer.

• Strong proficiency in React with TypeScript (TSX) and/or JSX.
• Solid experience with Node.js and a backend framework such as Express (or NestJS, Fastify) for building APIs and services.
• Hands-on experience with Next.js or similar modern React frameworks.
• Solid experience designing and working with MySQL databases (schema design, joins, indexing, query optimisation).
• Experience building and consuming RESTful APIs.
• Familiarity with state management (Redux, Zustand, React Query, or similar).
• Experience with automated testing (Jest, Vitest, Playwright, or Cypress).
• Familiarity with version control (Git) and collaborative development workflows.
• Strong problem-solving skills and the ability to work independently.
• Excellent written and verbal communication.

Nice to Haves

• Experience with cloud platforms (AWS, Azure, GCP, or Hetzner).
• Exposure to CI/CD pipelines and DevOps practices.
• Background in the EdTech or training sector.
• Experience in Linux environments
• Familiarity with Docker or other containerisation tools.
• Experience with authentication/authorisation systems (OAuth, JWT, SSO)., * Problem Solving - Takes a proactive approach to resolving technical challenges across the stack.
• Teamwork - Works collaboratively within a small development team.
• Communication - Clearly articulates technical decisions and progress to both technical and non-technical stakeholders.
• Time Management - Manages workload effectively to deliver features on schedule.
• Attention to Detail - Ensures code quality, accuracy, and consistency.
• Accountability - Takes ownership of assigned features and sees them through to delivery.
• Adaptability - Adjusts to changing requirements and evolving technologies.
• Confidentiality - Maintains discretion when handling sensitive data and systems.
• Proactiveness - Seeks out opportunities to improve code, processes, and products.

Physical Demands & Working Conditions

• Primarily a remote-based role with ability to commute to CST Training office (Bexley DA5 1JX) when required, requiring extended periods working on a computer.