Mantle Development is a growing software company building bespoke digital products and ecommerce solutions for ambitious clients. Our work ranges from greenfield builds to evolving existing platforms, which means no two projects are the same.
We care about clean code, pragmatic solutions, and continuous learning. Our applications are fully containerised and deployed to AWS ECS and EKS, and we're always improving how we build, ship, and scale software.
Our strapline, "At the Core of Your Business", is reflective of how we pride ourselves on excellent user experiences, holistic approaches to problem solving, and building long-term dependable relationships with our clients.
We are looking for a passionate person to join our team and grow with us, aligned with our values of being: cooperative; holistic; proactive; pragmatic; and to have fun with their work.
The Role
We're looking for a
Junior to Mid-level Software Engineer
with some experience in PHP and some exposure to Symfony and/or Laravel, who's excited about building real products and growing their skills.
You'll be part of a small, collaborative team where your input matters. You'll work across bespoke systems and ecommerce platforms, contribute to technical decisions, and learn modern development and deployment practices along the way.
This role is perfect for someone who's curious, proactive, and wants to move beyond "just coding" into understanding how software is built, shipped, and scaled.
What You'll Be Doing
Building and maintaining backend features using PHP
Working on custom-built applications and ecommerce solutions
Writing clean, readable, and maintainable code
Collaborating in code reviews and pair programming
Helping shape solutions and technical approaches
Learning to build and run containerised applications (Docker)
Contributing to deployments on AWS ECS / EKS with support from the team
Debugging issues and improving performance and reliability
Taking part in sprint planning, estimation, and retrospectives
Maintaining and improving documentation
What We're Looking For
You Have:
Experience with PHP in a commercial or personal project setting
Some hands-on experience with Symfony and/or Laravel
A solid grasp of web fundamentals (HTTP, REST APIs, MVC)
Experience using Git in a team environment
Basic experience with relational databases (MySQL, PostgreSQL, etc.)
A growth mindset -- you enjoy learning new tools and approaches
Good communication skills and a team-first attitude
Bonus Points If You Have:
Experience with ecommerce platforms or integrations
Exposure to Docker or container-based development
Any experience with AWS, ECS, or Kubernetes (EKS)
Familiarity with automated testing (PHPUnit, Pest, etc.)
Startup or agency experience
What We Offer
A strong focus on learning and mentorship
Exposure to a wide variety of projects and technologies
Hands-on experience with modern cloud infrastructure
A collaborative, low-ego engineering culture
Flexible working hours and location (role-dependent)
Experience with different use cases across a diverse client base
Growth & Progression
We actively support progression. In this role, you'll have the opportunity to:
Level up your Symfony and Laravel skills
Learn how to design, deploy, and operate containerised systems
Gain real-world experience with AWS services
Grow into a Mid or Senior Software Engineer role over time
Job Type: Full-time
Pay: Up to 34,000.00 per year
Benefits:
Canteen
Company pension
Employee discount
Flexitime
Free parking
On-site parking
Work from home
Ability to commute/relocate:
Leeds: reliably commute or plan to relocate before starting work (required)
Work Location: In person
Expected start date: 02/03/2026
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