Senior Software Engineer - Serverless

We’re looking for a Senior Software Engineer 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

Deep experience building distributed and high-performance systems

Strong programming skills in PHP or Go

Proven track record of designing and delivering scalable backend systems and APIs

Understanding of asynchronous workloads, queues, and streaming data

Experience working with cloud and bare-metal infrastructure

Excellent grasp of system design, performance optimisation, and scalability principles

Clear communicator who leads technical projects and collaborates effectively across teams

Passionate about mentoring others and raising engineering standards

Proactive problem-solver who balances short-term progress with long-term vision

European time zone

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.

Generous paid time off – vacation, sick days, public holidays

Meaningful stock options – share in the upside you create

Remote-first setup – work from home anywhere we can employ you

Flexible hours – own your schedule outside core collaboration blocks

Family leave – paid maternity, paternity, and caregiver time

Company retreats – twice-yearly gatherings in inspiring locations