Find a job 
Featured Companies 
Featured Universities 
For Companies At a Glance
- Tasks: Design and develop web applications while mentoring junior developers.
- Company: Join a dynamic e-commerce team focused on innovation and collaboration.
- Benefits: Competitive salary, flexible work options, and opportunities for professional growth.
- Why this job: Make an impact in e-commerce development with cutting-edge technologies.
- Qualifications: 3-5 years of experience in PHP and Symfony development.
- Other info: Collaborative environment with excellent career advancement opportunities.
The predicted salary is between 30000 - 42000 £ per year.
The Role
As a Mid-Level Backend Symfony Developer, you’ll play a key role in designing, developing, and optimising our web applications. You will work independently on features, mentor junior developers, and contribute to architectural decisions. This is an excellent opportunity to further your career in e-commerce development within a collaborative and innovative environment.
Experience:
Mid-level developers typically have 3–5 years of experience, with a solid foundation in Symfony and PHP development.
Key Responsibilities
- Development
- Independently develop and optimise features for web applications.
- Refactor and improve existing code for maintainability and performance.
- Write comprehensive unit and functional tests to ensure high-quality code.
- Mentor junior developers, providing guidance and reviewing their code.
- Maintain high code quality by following Symfony best practices (PSR-12, SOLID principles, dependency injection).
- Optimise database queries and caching strategies for performance.
- Implement security best practices (prevent SQL injection, XSS, CSRF, and other vulnerabilities).
- Perform code reviews and ensure adherence to best practices.
- Work closely with the seniors, team leads, designers, and frontend developers to deliver robust solutions.
- Participate in technical discussions and contribute to architectural decisions.
- Assist in estimating project timelines and ensure timely delivery.
What We’re Looking For
- Technical Skills
- PHP & Symfony Expertise
- Strong understanding of PHP 8+ and Symfony framework (6/7).
- Proficient in Symfony components (Routing, Forms, Twig, Doctrine, Console, Security, etc.).
- Experience with Symfony Event Listeners, Subscribers, and Middleware.
- Advanced SQL knowledge (MySQL/PostgreSQL).
- Deep understanding of Doctrine ORM (custom queries, migrations, entity relationships).
- Experience optimising database queries and implementing caching (Redis).
- Experience building and maintaining RESTful APIs and working with GraphQL (nice to have).
- Proficient in API authentication (JWT, OAuth).
- Familiarity with API Platform (a plus).
- Understanding of Twig, JavaScript, and CSS.
- Familiarity with modern frontend frameworks (NextJs/React is a plus).
- Strong Git workflow (branching strategies, pull requests, rebasing).
- Familiarity with Docker or cloud platforms (AWS etc.).
- Problem-Solving Mindset – Ability to debug complex issues efficiently.
- Autonomy & Proactiveness – Work independently while collaborating with the team.
- Attention to Detail – Writing clean, maintainable, and scalable code.
- Mentorship – Support and guide junior developers to enhance team productivity.
Mid-level Backend Symfony Developer in Liverpool employer: Velstar
Contact Detail:
Velstar Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Mid-level Backend Symfony Developer in Liverpool
✨Tip Number 1
Network like a pro! Reach out to your connections in the tech world, especially those who work with Symfony or PHP. A friendly chat can lead to job opportunities that aren't even advertised yet.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your best projects, especially those involving Symfony and PHP. This gives potential employers a taste of what you can do and sets you apart from the crowd.
✨Tip Number 3
Prepare for interviews by brushing up on common technical questions related to Symfony and PHP. Practice coding challenges and be ready to discuss your past projects and how you tackled challenges.
✨Tip Number 4
Don't forget to apply through our website! We love seeing applications directly from candidates who are excited about joining our team. It shows initiative and helps us get to know you better.
We think you need these skills to ace Mid-level Backend Symfony Developer in Liverpool
Some tips for your application 🫡
Tailor Your CV: Make sure your CV highlights your experience with Symfony and PHP. We want to see how your skills align with the role, so don’t be shy about showcasing relevant projects or achievements!
Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you’re excited about the role and how you can contribute to our team. Keep it conversational but professional – we love a bit of personality!
Showcase Your Problem-Solving Skills: In your application, mention specific examples where you've tackled complex issues or optimised code. We’re looking for that problem-solving mindset, so let us know how you’ve made an impact in your previous roles.
Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you don’t miss out on any important updates from our team!
How to prepare for a job interview at Velstar
✨Know Your Symfony Inside Out
Make sure you brush up on your Symfony knowledge before the interview. Be ready to discuss specific components like Routing, Forms, and Doctrine. They might ask you to explain how you've used these in past projects, so have some examples ready!
✨Show Off Your Problem-Solving Skills
Prepare to tackle some coding challenges or hypothetical scenarios during the interview. Think about how you would debug complex issues or optimise database queries. Demonstrating a clear problem-solving mindset will impress them!
✨Highlight Your Mentorship Experience
Since mentoring junior developers is part of the role, be prepared to share your experiences in guiding others. Talk about how you've helped junior team members improve their skills and what strategies you used to support their growth.
✨Discuss Collaboration and Communication
This role involves working closely with various teams, so be ready to talk about your collaboration experiences. Share examples of how you've contributed to architectural decisions or participated in technical discussions to show you're a team player.
