Senior Backend Software Engineer
This is a role that TechTree is recruiting for on behalf of one of our clients. TechTree is an AI-driven recruitment platform working with high-growth companies. When you apply, our AI Agent matches you not just to this role, but to other relevant opportunities across our network, so one application can unlock multiple roles. Senior Backend Software Engineer — Own complex backend systems at the intersection of AI and insurance data. Remote (US, Canada).Our client's platform ingests billions of unstructured data points every day, extracts precise information from them, and surfaces the insights insurers rely on for high-stakes decisions. You'll join a high-ownership team responsible for business-critical infrastructure: the services, data models, pipelines and evals at its core, plus the external APIs that power customers' core workflows. What You'll Do→ Lead the design and delivery of complex Python services, data models and asynchronous pipelines on AWS→ Build and scale LLM-based systems that process large volumes of unstructured documents with precision and explainability→ Design external-facing APIs and integrations that customers depend on→ Own database performance as data volume grows What We're Looking For→ 5+ years of building and operating backend systems in production→ Strong Python, AWS serverless (Lambda, Step Functions) and asynchronous workflow experience→ Strong relational database and PostgreSQL performance tuning skills→ Experience building external-facing APIs or third-party integrations
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LLMs in production, document pipelines, distributed systems, or insurance/fintech experience. What is TechTree? TechTree combines AI agents with a human support team to give candidates a better, more transparent hiring experience. Our AI Agent gets to know your background, experience, and what you're optimising for. It continuously matches you to live roles across our network where there's genuine alignment, not just keyword overlap. Our Human Team is there to support you through the process — answering questions, adding context, and making sure you're never left guessing or ghosted. We only post real jobs. Every role on TechTree is a live, active hire.