Mid-Level Full-stack Developer (Symfony & Next.js/React) in Leeds

Mid‑Level Full-stack Developer (Symfony & Next.js/React)

Velstar | Shopify Platinum Partner Agency invites you to apply for this role. The position is office based at least 3 days per week. Your primary focus will be on building robust, scalable APIs using Symfony API Platform and crafting modern, high‑performant user interfaces with Next.js and React.

Key Responsibilities

• Backend Development: Design and implement new API endpoints and business logic using Symfony (PHP) & API Platform, ensuring high performance and security.
• Frontend Development: Build responsive, user‑friendly features and components using Next.js and React (including hooks, functional components, and state management).
• Data Management: Work with our database (e.g., MySQL) and Doctrine ORM to optimise data retrieval and storage.
• Testing & Quality: Write unit, integration, and functional tests (PHPUnit, Jest) to maintain high code quality and prevent regressions, following best practices (PSR‑12, SOLID principles, dependency injection).
• Collaboration: Participate in planning meetings, architectural discussions, and provide constructive feedback during code reviews.
• Deployment: Use Git and Docker to manage your code and contribute to our continuous integration and deployment pipelines.

What We\’re Looking For

• 4+ years of professional experience in full‑stack web development.
• Strong practical experience with the Symfony framework (v5/v6/v7).
• A solid grasp of services, routing, security, and Doctrine.
• Proficiency in React and Next.js, comfortable building complex UIs and leveraging Next.js features such as routing and API routes.
• A good understanding of modern JavaScript (ES6+), HTML5, and CSS.
• Experience with relational databases (e.g., MySQL or PostgreSQL).
• Experience with containerization (Docker).
• Familiarity with Git version control and common development workflows.
• Problem‑solving mindset and ability to debug complex issues efficiently.
• Attention to detail and the ability to write clean, maintainable, and scalable code.

Bonus Points If You Have

• Familiarity with cloud platforms (AWS).
• Knowledge of asynchronous tasks/queues (e.g., Symfony Messenger).

Seniority Level

Mid‑Senior level

Employment Type

Contract

Job Function

Engineering and Information Technology

Industries

Software Development