Freelance Senior Full Stack Developer

EVERGREEN- Freelance Senior Full Stack Developer

At Talon, our mission is to unlock the full potential of out of home, making it more effective, creative, measurable and sustainable than ever.

We're passionate about OOH and are on a mission to drive the growth of this sector within the media industry. In just over a decade, our desire to offer intelligent, creative, technology-led OOH solutions and a full-service OOH offering saw us grow into a team of over 450+ people located in key cities across the globe. In that time, we have been awarded for our approach to our people, our clients and our industry. We hire the finest talent to help us unlock the full potential of the Out of Home (OOH) environment for our clients; and pride ourselves on the individuals who represent our business.

THE ROLE

Funding: This advert is part of our evergreen freelance talent pool. We'll review applications on an ongoing basis and contact candidates when relevant work becomes available. The role sits outside IR35.

Grand Visual is seeking a talented freelance Senior Full Stack Developer to join our London team on an ad-hoc project basis, to play a key role in the development, delivery, and ongoing evolution of Grand Visual's DCO (Dynamic Creative Optimisation) platform. This role is to support the building and maintaining the systems that enable real-time, data driven creative across digital out-of-home campaigns, while ensuring stability and reliability during live delivery.

Focusing on operational delivery, the Senior Full Stack Developer owns significant technical responsibilities of the software stack, supports live dynamic campaigns, and works closely with leadership to ensure solutions are scalable, robust, and aligned with the wider creative and commercial goals of the business.

RESPONSIBILITIES AND RELATIONSHIPS

• Join the team on a freelance basis to provide additional senior level development capacity when required
• Take on more complex or time sensitive development tasks within existing systems, working within established patterns and architectures
• Deliver well scoped features, integrations, and campaign builds without introducing unnecessary changes to core platform architecture

Live support & problem solving

• Provide experienced development support during campaigns, helping diagnose and resolve issues quickly and pragmatically
• Assist with troubleshooting production issues, identifying root causes, and implementing safe fixes under the direction of the permanent team
• Support QA and testing of complex dynamic builds ahead of launch when additional senior oversight is required

Collaboration & working relationships

• Work closely with Creative Technology Director to understand technical constraints, delivery expectations, and priorities
• Collaborate with permanent Senior and Junior developers, fitting into existing workflows and ways of working
• Liaise with Production and Creative teams as needed to ensure technical delivery aligns with campaign requirements

WHAT WE'RE LOOKING FOR

• BOLD:
  • Ability to work autonomously and as part of a team
• HUMAN:
  • Excellent communication and collaboration skills
• SMART:
  • Detail-oriented and organised, able to manage multiple tasks simultaneously

YOUR EXPERIENCE AND QUALIFICATIONS

• Strong experience with Laravel, Vue.js, MySQL, and GIT workflows
• Solid understanding of full stack development, including server side logic, frontend integration, and data flow
• Experience working with APIs and real-time data integrations
• Strong debugging, problem-solving, and production support skills
• Familiarity with cloud based environments (e.g. AWS) and deployment considerations
• Proven experience as a Senior Full Stack Developer or similar role in a production environment
• Experience delivering and supporting live systems where reliability and uptime are critical
• Demonstrable experience working with data driven or dynamic content systems
• Experience collaborating with creative, production, or multidisciplinary teams
• Exposure to DOOH, advertising technology, or creative technology environments is beneficial but not essential

WHY US

" The best thing about working at Talon is the space, time and expertise I've been given over the years to grow and develop my skills." Client Director at Talon

OUR VALUES AND HOW WE WORK TOGETHER WE ARE BOLD

As industry provocateurs and pioneers, we respectfully challenge the status quo, take pride in our people, big ideas and partnerships.

• We challenge respectfully
• We lead the way

WE ARE HUMAN

We are a diverse collective of changemakers who value respect, fairness, and integrity and expect the same in return.

• We value collaboration and togetherness
• We are empathetic

WE ARE SMART

Our trailblazing spirit and learning centric culture ensures our knowledge provides maximum value to each other and our clients.

• We grow and learn
• We are trusted
• We are mission possible

Talon is an equal opportunities employer. We celebrate diversity and are committed to creating an inclusive environment where all individuals can thrive. We seek to employ and develop a workforce representative of the markets that we serve and brands that we represent.