We’re looking for a FullStack Engineer to join our R&D team and help build the infrastructure powering the next generation of AI products.

In this role, you’ll work across our APIs, SDKs, CLI tools, and applications, building developer-first infrastructure that enables companies to meter, monetise, and govern AI usage at scale.

What you’ll do

• Own feature development end-to-end — from understanding customer and business needs to delivering scalable, production-ready solutions
• Build reliable, fault-tolerant systems designed to operate at scale from day one
• Develop APIs, SDKs, CLI tools, and integrations that fit seamlessly into customers’ applications and deliver an excellent developer experience
• Contribute actively to architectural and technical decisions across the product
• Collaborate closely with product, engineering, and other stakeholders to turn complex requirements into simple, robust solutions
• Help shape engineering standards and best practices as the platform grows

What will help you succeed

• 5+ years of full-stack software development experience, with a strong backend orientation
• Hands-on experience with Node.js, TypeScript, and React
• Proven experience designing and building APIs, microservices, and distributed systems
• Strong understanding of messaging and queueing technologies such as SQS, Kafka, or RabbitMQ
• Experience with Docker, serverless architectures, and cloud infrastructure, preferably AWS
• Familiarity with modern AI development tools and agentic development workflows
• Strong communication and collaboration skills; English — Upper Intermediate
• A proactive, ownership-driven mindset and a practical, can-do approach

Bonus points

• Experience building SDKs, CLI tools, developer platforms, or developer infrastructure
• Experience working with high-scale, high-throughput, or low-latency systems
• Experience building new products, platforms, or technical systems from the ground up
• Strong product and engineering judgment, with the confidence to express and challenge technical opinions constructively
• Curiosity and the ability to quickly evaluate, learn, and bring new technologies from research into production

If you enjoy building infrastructure that developers depend on, solving complex systems challenges, and shaping products at the intersection of AI, monetization, and developer tooling, we’d love to hear from you.