Senior Serverless Engineer — Remote, Flexible Hours, Stock Options

Runware; France; Remote; EUR 120,000 - 150,000; Full time

Benefits offered by this job

Generous paid time off

Meaningful stock options

Remote-first setup

Flexible hours

Family leave

Company retreats

Job summary

Runware is seeking a Senior Software Engineer to transform ambitious AI ideas into production systems that delight developers and deliver real business impact. You will own from design to delivery, building robust backends, SDKs, and tools that accelerate AI integration across the stack.

You’ll mentor peers, shape architecture, and collaborate across teams to ensure performance, reliability, and developer-centric experiences. Remote-first with core hours and annual in-person meetups.

Qualifications

• 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.

Responsibilities

• 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.

Skills

Distributed systems

Go

PHP

Backend APIs

Asynchronous workloads

Cloud infrastructure

Mentoring

System design

Observability

Performance optimisation

Tools

Cloud platforms

Job description

Runware is seeking a Senior Software Engineer to transform ambitious AI ideas into production systems that delight developers and deliver real business impact. You will own from design to delivery, building robust backends, SDKs, and tools that accelerate AI integration across the stack.

You’ll mentor peers, shape architecture, and collaborate across teams to ensure performance, reliability, and developer-centric experiences. Remote-first with core hours and annual in-person meetups.