Senior Full Stack Developer

Senior Full Stack Developer – Contract Position – HIRING ASAP

Location: London, 3 days in office per week & 2 days remote per week Start Date: ASAP Duration: 6-9 months (extension after) Daily Rate: £500 – £550 per day outside IR35

Key Responsibilities Delivery?focused development support

• 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

Required Skills & Experience

• Strong experience with Laravel (PHP), Linux, AWS, 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
• 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

Nice to have skills

• Exposure to DOOH, advertising technology, or creative technology environments is beneficial but not essential

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