Full-Stack Software Engineer (Backend-Leaning)

We’re looking for a Full-Stack Engineer (Backend-leaning) to design and build the systems and user-facing features that power Collate. You’ll spend most of your time on backend challenges-APIs, services, and infrastructure-but you’ll also ship end-to-end features.

This is an opportunity to help define our technical foundation, collaborate directly with design and product, and shape how our users experience Collate from day one., Collate uses a modern tech stack, targeting a highly reliable and available platform. We use Go for scalable backend services, TypeScript & React for frontend development, and Python for AI & ML services. Our infrastructure is hosted on AWS with Kubernetes for orchestration and Terraform + Argo CD for configuration management. Key systems include S3, PostgreSQL, Kafka, OpenSearch, LLMs, and other AI models., * Design and scale backend services, APIs, and data pipelines that power Collate’s products.

• Deliver end-to-end, production-ready features in partnership with product, design, and AI engineering.
• Balance iteration speed with technical rigor to ensure systems scale reliably.
• Create internal tools and workflows that accelerate engineering productivity.
• Share responsibility for production systems, including participating in on-call rotation.

• Have experience building across the stack, with deeper strength in backend systems.
• Enjoy taking features from idea * backend architecture * polished UI.
• Care deeply about both technical robustness and the end user experience.
• Are motivated by ambiguity, eager to pick up missing knowledge, and excited to solve novel problems.
• Value speed, pragmatism, and scrappiness but know when to design for robustness.
• Have been an early-stage engineer or startup founder-or aspire to work at that level of ownership.

The base salary range for this role is $150,000-$350,000 USD annually, depending on experience and level (Tier 1, San Francisco). #J-18808-Ljbffr

Our CEO Surbhi Sarna is a former General Partner at Y Combinator. Surbhi founded nVision Medical, which developed a new method to detect ovarian cancer and was acquired by Boston Scientific. Our CTO Nate Smith is a former Visiting Partner at Y Combinator and founder of Lever. Our AI researchers, engineers, and designers have worked at Google, Nvidia, Meta, Netflix, Amazon, AirBnB, Hippocratic AI, and Grail, and 40% of our team are former founders.

We’re a small, elite team, with over $30M in seed funding from top investors (Redpoint, First Round Capital, Conviction, and Y Combinator) and leaders in healthcare and AI. This is a rare chance to join at the ground floor of a company with world-changing potential, experienced founders, and resources to execute at scale.