Senior Full Stack Web Developer

i4 Recruitment; Cardiff; On-site; GBP 60,000 - 69,000; Full time

Job summary

A leading company in Cardiff seeks a Senior Full Stack Web Developer to lead development initiatives and mentor junior developers. This role requires expertise in Symfony and Vue.js, with a focus on building high-performance web applications. Enjoy a modern work environment, competitive salary up to £60,000, and various perks that promote well-being and work-life balance.

Benefits

Annual salary reviews and performance-based bonuses

Free Bupa healthcare and dental plans

Flexible working hours

Regular team socials

£1,000 referral bonus

Free city centre parking

Qualifications

• Proven experience leading development projects and mentoring developers.
• Strong technical skills in Symfony, Vue.js, and MySQL.
• Comfortable working with and improving legacy code.

Responsibilities

• Leading the development of new features and refining existing systems.
• Mentoring junior developers and conducting code reviews.
• Driving scalable, efficient, and maintainable solutions from concept to deployment.

Skills

Symfony

Vue.js

HTML

SCSS

JavaScript

MySQL

Git

APIs

Problem Solving

Communication

Tools

Composer

NPM

CI/CD pipelines

Automated testing frameworks

Job description

Senior Full Stack Web Developer
Location: Fully in-house, Cardiff
Salary: Up to £60,000 per annum

We’re looking for a Senior Full Stack Developer to take a key leadership role in building and maintaining high-performance web applications.Working in-house from our Cardiff office, you’ll collaborate closely with designers, marketers, and other teams to deliver exceptional digital experiences using Symfony, Vue.js, Craft CMS, and MySQL.

What You’ll Be Doing

• Leading the development of new features and refining existing systems to ensure a seamless user experience.
• Driving scalable, efficient, and maintainable solutions from concept through to deployment.
• Mentoring junior developers, conducting code reviews, and maintaining high technical standards across the team.
• Collaborating across the business to ensure best practices and cross-functional alignment.
• Using tools like Webpack, Composer, and NPM to optimise workflows.
• Contributing to continuous integration and deployment improvements.
• Supporting the modernisation of our tech stack and development processes.

We value a strong, in-person, team-driven culture where developers collaborate, share knowledge, and support each other’s growth.

What We’re Looking For

• Proven experience leading development projects and mentoring other developers.
• Strong technical skills in Symfony, Vue.js, HTML, SCSS, JavaScript, and MySQL.
• Solid understanding of Git, APIs, and package managers (e.g.Composer, NPM).
• Comfortable working with and improving legacy codebases.
• A proactive problem-solver who performs well under pressure.
• Strong communication and collaboration skills.
• Passion for building scalable, maintainable applications.
• A commitment to diversity, equity, and inclusion—we value different perspectives and experiences.

Bonus Skills

• Experience with CI/CD pipelines and DevOps environments.
• Familiarity with automated testing frameworks.
• Knowledge of the home-buying or moving industry.
• Relevant software development certifications.
• Interest in sustainability and eco-conscious technology.

Why You’ll Love Working Here

• Modern, well-equipped office space built for collaboration and innovation
• Annual salary reviews and performance-based bonuses
• Free Bupa healthcare and dental plans to support your wellbeing
• Your birthday, workiversary, and two weeks off at Christmas – time off that matters
• Regular team socials and monthly takeaway Fridays
• £1,000 referral bonus and long-service rewards
• Free city centre parking for convenience
• Flexible working hours between 6 AM and 8 PM – work at your best pace