Backend Engineer

• Design and maintain LLM pipelines through extensive prompt engineering, ensuring solutions work seamlessly across a wide variety of recruiter use cases without requiring clients to manually configure or adjust settings
• Deliver a frictionless onboarding experience - the goal is one onboarding call where clients can define how they want the product to work, and it works
• Build robust two-way integrations with email, calendar, and recruiting platforms, including custom work on proprietary client tooling and the latest API and MCP-based integrations
• Develop and refine systems to guarantee high reliability and data security - covering queuing, retries, idempotency, per-firm data isolation, and review-before-send approval flows
• Collaborate closely with product and engineering teams to shape the core architecture and quickly deliver impactful solutions, with significant data expansion on the horizon
• Continuously improve automation systems that help recruiters save time and increase productivity

• Hands-on experience building with LLMs in production, including orchestration and evaluation of non-deterministic systems - with a heavy emphasis on prompt engineering across a wide range of use cases
• Strong backend fundamentals using Python: API design, data modeling, async/event-driven patterns, and PostgreSQL databases
• Proven track record of shipping highly reliable software in high-ownership environments (startup experience a plus)
• Comfort with real-world software integrations: OAuth, webhooks, rate limits, proprietary APIs, and modern tooling including MCPs
• Deep understanding of reliability and data security; proactive about handling failure modes
• A genuine eagerness to learn and adapt - candidates who are unwilling to grow need not apply

Backend Engineer Must-Have Tools & Skills

• Claude Code or Codex
• Familiarity with Temporal for workflow orchestration and Braintrust for QA/evaluation

Backend Engineer Preferred Background & Skills

• Experience with agent/tool-use orchestration or eval-driven development
• Previous work integrating with calendar, email, CRM, ATS, or TRM platforms
• General data modeling experience (entity-relationship or equivalent)
• Python, Postgres, GitHub

• Strong six figure competitive compensation and meaningful equity stake
• Opportunity to take ownership of critical backend systems impacting major search firms
• Work with a forward-thinking, collaborative founding and engineering team
• Build solutions held to the highest security standards (SOC 2 Type 2, ISO 27001, GDPR, CCPA)

Join an innovative technology startup building AI-driven tools for the staffing and recruiting industry. This is a unique opportunity to shape the core infrastructure of a VC-backed team delivering meaningful productivity gains for recruiters at enterprise clients. Collaborate closely with a visionary founding team and help deliver secure, real-world automations that redefine how search firms operate.