Senior Software Engineer (PHP/Symfony)

True9; Saltaire; Hybrid; GBP 50,000 - 65,000; Full time

Benefits offered by this job

Hybrid role

Remote flexibility

34 days off incl. holidays

Birthday off

Home office setup

£500 development budget

On-site parking

Team events

Culture and growth

Job summary

True9 is a Saltaire-based technology consultancy hiring a Senior Software Engineer (PHP/Symfony). You will write clean PHP (Symfony/Laravel), refactor legacy code, and own platform areas while guiding architectural decisions. You’ll join a collaborative team that values quality and long-term maintainability.

The role blends office time in Saltaire with remote work flexibility, and offers support for growth with a dev budget and ongoing learning opportunities.

Qualifications

• Strong experience with PHP, OOP and modern frameworks.
• Comfortable working with large or legacy systems.
• Strong focus on quality, testing and long-term maintainability.
• Autonomy, trust and thoughtful decision-making.
• Clear communication and valuing clarity over ego.

Responsibilities

• Write clean, maintainable PHP (primarily Symfony and Laravel).
• Refactor legacy codebases, improve boundaries and quality.
• Own areas of the platform and improve them incrementally.
• Contribute to architectural decisions and refactoring strategies.
• Improve developer experience through better tooling, tests and workflows.
• Collaborate with delivery and QA throughout the lifecycle.

Skills

PHP

Symfony

Laravel

OOP

Modern frameworks

Job description

Hybrid with Remote Working (UK) | £50,000 - £65,000 | Full-time

True9 is an eleven-year-old, independent technology consultancy based in Saltaire, West Yorkshire.

Senior Software Engineer (PHP/Symfony)

We're looking for a Senior Software Engineer (PHP/Symfony) who enjoys working on established, business-critical systems - and taking the time to improve them properly.

Much of our work involves long-lived platforms that have delivered value for years. The challenge comes from improving structure, reducing risk and enabling teams to move faster with confidence.

If you enjoy untangling complex systems, improving legacy codebases without burning them down, and leaving software in a better state than you found it, you'll feel at home here.

What you’ll be doing:

• Writing clean, maintainable and well-tested PHP (primarily Symfony and Laravel)
• Working hands-on with legacy codebases: refactoring, improving boundaries and raising quality
• Owning areas of the platform and improving them incrementally
• Contributing to architectural decisions and refactoring strategies
• Improving developer experience through better tooling, tests and workflows
• Collaborating closely with delivery and QA throughout the lifecycle

We believe great software comes from people who are supported, trusted and given room to grow.

In this role, you’ll:

• Have time and space to improve the codebase, not just add features
• Be encouraged to take ownership and influence technical direction
• Learn through real-world problems, not artificial exercises
• Share knowledge and mentor others (and be mentored yourself)

How we work:

• A supportive, low-ego environment where people are trusted to do the right thing
• Pragmatic, delivery-focused engineering
• Clear communication and collaboration across engineering, delivery and QA

Our office is based in Salts Mill, Saltaire - a historic, light-filled space that's become a natural hub for collaboration, focus and shared problem-solving. We value the energy and connection that come from spending time together, while recognising that remote working remains useful for focused work and flexibility.

This is an important role within the business, working closely with some of our largest clients. We're looking for someone who values spending time with the wider team and can join us in our Saltaire office a couple of days a week.

This role is a great fit if you:

• Have strong experience with PHP, OOP and modern frameworks
• Are comfortable working with large or legacy systems
• Care about quality, testing and long-term maintainability
• Prefer autonomy, trust and thoughtful decision-making
• Enjoy working with people who value clarity over ego

What we offer:

• Competitive salary ( £50,000 - £65,000 ) with annual performance-based reviews
• Hybrid role, office-based with remote working flexibility
• 34 days off, including Bank Holidays, plus your birthday off every year
• Home office setup - we'll provide the right equipment to get you started
• A £500 annual personal development budget for learning that matters to you
• A genuinely supportive, down-to-earth team
• On-site parking and direct train and bus routes
• 2x offsite whole-team activity days per year
• 6x in-office whole-team days, held every other month
• 6x virtual whole-team catch-up events, held every other month
• A vibrant and innovative work culture where your ideas genuinely matter

Want to know more about how we work?

You can explore the full role details, our culture and how we support your professional growth on our website: https://www.true9.co.uk/culture-and-careers/senior-software-engineer-php/