Senior Full-Stack Engineer, Contract

Xcelirate
London

Who Are We?

Xcelirate develops technologically-advanced platforms which are accessed by thousands of users every minute! We are proud to offer a workplace where the sharpest developers come together to strategically plan and swiftly execute practices which see us maintain our existing market dominance and attain global expansion. We owe our success to our customers who have seen us grow across a decade, and our talented team who have made that growth possible!

What are we looking for?

You’re a full-stack dev - you’ve been around the block, and you know your way through both backend trenches and frontend battlefields. PHP? Still your reliable sidekick. JavaScript? Sometimes a mischievous friend, sometimes a chaos gremlin, but you’ve learned how to keep it in line.

You work best with fierce independence. You don’t need hand-holding - you’re the one who does the hand-holding when it’s needed. You don’t wait for direction; you are the direction. To twist a phrase: you’re not the one who knocks, you’re the one who delivers.

You live for making things work. Whether that’s a clean new feature, a quirky legacy bug fix, or tracking down why that button refuses to do what it’s told. You like code that’s neat and maintainable, but you’re also practical - you know sometimes duct tape is exactly what the situation calls for.

Building apps is your thing - you tinker, refactor, and optimize because you can’t help yourself. You get a kick out of speeding things up, cleaning things up, and occasionally wondering what exactly your predecessor was drinking when they wrote that function.

And yes, you’re not afraid to dive into the relics. That PHP app last touched in 2010? It still needs love. The JavaScript file with 1,200 lines and no semicolons? You’ll wrestle it into submission.

What will you be doing?
  • Manage your own time while adhering to priorities set by the company.
  • Build new features and improve existing ones across our platforms.
  • Refactor and enhance applications to keep them performant, scalable, and maintainable.
  • Write tests (unit, integration, and end-to-end) to ensure software reliability.
  • Be involved in every phase of the software lifecycle, from ideation to deployment.
  • Participate in deep technical discussions and help shape our applications and infrastructure.
  • Get hands-on with all elements of the stack, from backend logic to frontend interactions.
  • Identify inefficiencies and help streamline workflows, reducing unnecessary work.
  • Take ownership of your work, ensuring high-quality results and maintainable solutions.

Requirements

What will you bring along?

  • 10+ years of PHP development, with expertise in at least one framework (Symfony, Zend preferred).
  • 12+ years of web application development experience: you’ve seen the evolution of web tech and know how to build for the future.
  • 6+ years working with frontend frameworks/libraries like Vue.js, React, Nuxt, or Next.js.
  • Deep understanding of scalable web architectures: monolithic, microservices, or hybrid, you know when to use what.
  • Strong communication skills, with the ability to explain technical concepts to both engineers and non-engineers.
  • Passion for automated testing (unit, integration, and end-to-end) and test-driven development (TDD).
  • Hands-on experience building and maintaining CI/CD pipelines.
  • Strong expertise in PHP development, debugging, and algorithm/software design.
  • Knowledge of agile development tools, techniques, and principles.
  • Familiarity with Ansible and Terraform for infrastructure automation.
  • Experience deploying, managing, and scaling applications in cloud environments (AWS, Azure, Google Cloud).
  • Strong grasp of web security: encryption, authentication, authorization, and everything in between.

We are always looking for the best candidates, so if you think you would be a good fit even if you don't meet 100% of the requirements, we would love to hear from you!

Benefits

How We Support Our Contractors

  • €60/hour + retention bonus scheme: Competitive contractor rate with a generous bonus paid every 6 months based on your time with us.
  • Top-Notch Workstation: We provide the latest MacBook, branded merchandise, and everything you need for an optimal work environment.
  • Global Co-Working Access: Work from a global network of co-working spaces to keep your work-life dynamic and flexible.
  • Flexibility: Enjoy full flexibility in work location and hours, supporting a work-life balance tailored to your needs.
  • Events and Gatherings: Participate in exciting events throughout the year, including team gatherings, cultural events, and other fun activities.
Posted 2025-11-12

Recommended Jobs

Real Estate Finance Senior Lawyer

Michael Page
City of London, Greater London

You'll be involved in a broad range of transactional real estate finance matters, including: Investment and development finance Senior/mezzanine secured lending Investment-grade borrowing …

View Details
Posted 2025-09-24

Buyer in London Area

London

Job description Are you a product-obsessed buyer who lives and breathes running and sports? We're partnering with one of the most exciting new brands in the performance lifestyle space - and they'…

View Details
Posted 2025-11-06

Senior Project Manager - Health

Flagship Consulting
London

THE COMPANY One of the UK’s leading Property Consultancies is looking to recruit a Senior Project Manager to deliver a range of major Health sector projects across London. My client is one of the mo…

View Details
Posted 2025-10-21

Legal Billing Assistant (6-month FTC) - London

London

We are delighted to be supporting a Top Law Firm in their search for a Legal Billing Assistant to join their supportive London office on a 6-month FTC. This is an excellent opportunity to work within…

View Details
Posted 2025-10-09

Quantity Surveyor

Madigan Gill
London

About the Role We are seeking an Intermediate Quantity Surveyor to join our commercial team on a long-term freelance basis. The role offers a great balance of site-based and remote working, providing …

View Details
Posted 2025-10-27

Art Technician - Good School - Romford, Essex

Marchant Recruitment
Romford, Greater London

Are you a creative, practical and organised individual looking to support students in developing their artistic confidence and skills? A Good Secondary School in Romford is recruiting a full-time …

View Details
Posted 2025-11-06

Inspiring Sociology Teacher - Merton - January Start -...

Marchant Recruitment
Merton, Greater London

Are you a passionate and dedicated Sociology Teacher eager to inspire students up to A-Level? Join a vibrant and supportive learning community in "Outstanding" school in Merton, starting this January…

View Details
Posted 2025-11-06

Early Years Practitioner in Crystal Palace

Ethos Education
Crystal Palace, Greater London

Make a difference to children's development from a young age as an Early Years Practitioner in an inclusive and vibrant nursery located in Crystal Palace .     The suitable Early Years Prac…

View Details
Posted 2025-10-30

General Manager - Premium Sports & Lifestyle Venue

Love Recruitment
London

General Manager – Premium Sports & Lifestyle Venue  Earls Court - London £50,000 + 10% bonus Are you a natural leader who thrives in vibrant, community-focused environments? This is your ch…

View Details
Posted 2025-11-04

Register Your Interest - 2026 Apprenticeship Programmes

Isio
London

We are an industry-leading challenger, providing pensions, employee benefits and wealth services – ensuring better outcomes for our clients. What we offer at Isio? We offer Apprenticeship opport…

View Details
Posted 2025-11-04