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About the role
As a Principal Backend Engineer , you’ll be a technical leader responsible for architecting, building, and scaling the core backend systems that power our agentic platform. You’ll drive the design of high-throughput services, resilient data pipelines, real time agent clouds, and integrations with mission-critical third-party providers. You’ll translate complex requirements into robust, elegant systems that support rapid growth.
What they're looking for
- 8+ years of backend engineering experience
- Experience with high velocity agentic coding under strict security requirements
- Bachelor’s degree in Computer Science, Software Engineering, or equivalent practical experience
- Strong expertise in backend languages and frameworks (Node.js/TypeScript, Go, Python, or similar)
- Experience designing scalable distributed systems, microservices, and event-driven architectures
- Deep experience with third-party integrations, REST/GraphQL APIs, webhooks, and rate-limited services
More about this role
Extuitive is a Flagship Pioneering–backed startup reimagining product innovation for the AI era. Our mission is to revolutionize go to market for planning and execution for the agentic age. Based in Cambridge, MA, we operate like a special ops unit—fast-moving, data-driven, and relentlessly focused on impact.
As a Principal Backend Engineer , you’ll be a technical leader responsible for architecting, building, and scaling the core backend systems that power our agentic platform. You’ll drive the design of high-throughput services, resilient data pipelines, real time agent clouds, and integrations with mission-critical third-party providers. You’ll translate complex requirements into robust, elegant systems that support rapid growth. You’ll be a key contributor to our technical strategy, helping evolve our platform architecture to maintain security and reliability as we scale.
- All things AI agents – from harness selection to prompt optimization and eval system, you’ll work side by side with your teammates to deliver best in class agent experiences.
- Own Core Backend Systems – Design, build, and maintain scalable services, APIs, and platform infrastructure. Ensure reliability,...
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