Senior PHP Developer

We’re looking for PHP Developers of all levels who thrives on turning ambitious ideas into production systems that delight developers and deliver real business impact.

You’ll work across the stack, from backend APIs and orchestration to SDKs, dashboards, and developer tools. You’ll take ownership from start to finish, understanding user needs, designing elegant solutions, and delivering outcomes that make building with AI faster, simpler, and more creative.

You’ll collaborate across the company to build systems that are robust, performant, and a joy to work on. This role combines technical depth, product intuition, and leadership, making it ideal for engineers who want to shape both how things are built and why they matter.

Is this role a fit for you?

You are motivated by impact. You thrive on transforming complex AI systems into products that developers love to use. You think holistically about architecture, user experience, and business outcomes, and you take pride in delivering systems that are both elegant and dependable.

You are equally comfortable designing APIs, building scalable backend services, and improving developer-facing experiences. You set a high bar for quality, mentor others to reach it, and drive alignment between product ambition and technical reality.

What this role could entail

• Lead the design and implementation of core systems powering Runware’s AI platform
• Build and evolve backend APIs, SDKs, and developer tools that make AI integration seamless
• Integrate and optimise image and video models while supporting new modalities such as audio and custom LLMs
• Architect scalable, reliable systems for inference orchestration and workload optimisation
• Partner with platform and infrastructure teams to drive performance, reliability, and observability improvements
• Shape technical direction through architectural discussions and long-term planning
• Mentor engineers through code and design reviews, fostering technical excellence and growth
• Contribute to documentation, tooling, and SDKs that enhance the overall developer experience
• Drive initiatives that improve how we build, deploy, and maintain our platform

Requirements

Benefits

We’re a remote-first collective, meeting in person twice a year to plan, brainstorm, celebrate wins, and enjoy some face-to-face time. We have core hours for cooperative working and calls, but outside of that your calendar is yours. Work the hours that let you perform at your peak while also building a healthy life.

Our release cycles are fast and intense, but they’re followed by real downtime. After big pushes we expect the team to unplug, recharge, and come back ready & stronger than ever for the next leap.

Please note : We are unable to offer visa sponsorship in the UK at this time. Candidates must have existing right to work in the UK.