[Hiring] Senior Full-Stack Developer @Athlon

Role Description

We're on the hunt for a Senior Full-Stack Developer, who will play a key role in delivering end-to-end solutions across a range of projects. Building high-quality user experiences while engineering the systems, APIs, and integrations that make them robust, scalable, and secure.

You’ll work across both front-end and back-end systems, taking ownership of technical delivery from initial discovery through to deployment. You’ll collaborate closely with designers, project managers, and clients to translate requirements into scalable, maintainable, and well-structured technical solutions.

You are confident working with modern development workflows and use AI tools as an accelerator to improve speed, exploration, and efficiency while maintaining responsibility for code quality, correctness, and long-term maintainability. You pair this with strong full-stack fundamentals, clean coding practices, and a sharp eye for quality.

This role requires clear communication and the ability to operate comfortably in ambiguous, fast-moving project environments. You will also act as a technical point of contact for clients, helping guide decisions and shape project direction.

You have a methodical approach to problem-solving and a genuine passion for technology and the evolving development landscape.

Qualifications

• 6–8 years of full-stack development experience, with solid fundamentals across front end and back end.
• 2+ years actively using AI tools for code development — daily use of LLM-based coding tools in a professional or substantial personal project context.
• Demonstrable experience applying spec-driven development and/or vibe coding methodologies.
• Experience working in an agency or client-facing environment preferred.
• Full-stack development skills, with a flexible tech-agnostic mindset.

Requirements

• Frontend languages (e.g. HTML, CSS/SCSS/Tailwind, JavaScript/TypeScript, frameworks like React and Next).
• Experience with Backend languages (Node.js or PHP).
• Strong experience in one of WordPress (PHP) or modern JavaScript/Next.js headless CMS ecosystems.
• API Integration (REST, GraphQL).
• GIT workflows, CI/CD automation.
• Cloud services (e.g. AWS, GCP, or Azure).
• Solid understanding of software architecture and system design principles.
• AI coding tools — hands-on proficiency with tools such as Claude, Cursor, GitHub Copilot, or similar LLM-assisted development environments.
• Spec-driven development — writing structured prompts, technical specs, and implementation plans that guide AI-assisted workflows effectively.
• Vibe coding - comfortable using AI to rapidly prototype, iterate, and explore solutions in fast-moving creative or technical contexts.

Benefits

• This is a fully remote role.
• Your line manager is the Technical Lead.
• You will work in the Engineering Team.
• The chance to work on innovative, high-profile projects that make an impact.
• A flexible work set-up - remote, hybrid, or whatever helps you do your best work.
• A competitive salary with a benefits package to match.
• Room to grow your career within a fast-growing international design.