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Flock Safety

We are the first public safety operating system empowering over 2500 cities to eliminate crime.

Senior Software Engineer – Backend/Investigative Agent

Backend EngineerSoftware EngineerOtherRemoteSeniorTeam 501-1,000Since 2017H1B SponsorCompany SiteLinkedIn

Location

California + 4 moreAll locations: California, Colorado, Illinois, Massachusetts, Texas

Posted

2 days ago

Salary

$170K - $200K / year

Seniority

Senior

Job Description

• Design the orchestration backend that manages complex LLM interactions. • Develop high-performance integration pipelines connecting our AI to Flock's massive data platform. • Build the agentic framework that allows Nightshift to "act" on behalf of investigators. • Solve the reliability and scaling challenges of deploying AI in high-stakes, real-time investigative workflows. • Partner with ML engineers on agentic workflows and platform teams to design robust APIs that ground AI in truth, ensuring our system remains performant as we process billions of data points daily. • Familiarize yourself with Flock’s investigative workflows and the massive data pipelines that power our platform. • Pair with ML (agentic systems), Data Engineering (investigative datasets), and Platform teams to understand the existing API landscape. • Complete your first push to production. Pick up initial sprint tickets focused on API integrations, backend bug fixes, or performance tuning for LLM streaming. • Implement the backend orchestration layer for LLM tool calling and multi-step reasoning. • Design and build the "connectors" that allow Night Shift to securely and efficiently query Flock’s core data services. • Stand up robust tracing and logging for the AI system to monitor agentic decision-making and reliability. • Own end-to-end backend features that connect the LLM to our internal APIs, ensuring low-latency responses for investigators. • Lead the development of a core Nightshift capability—like automated lead generation or cross-camera correlation—that demonstrably closes cases faster. • Establish best practices for testing and deploying AI agents within a microservices environment. • Influence the product direction by identifying how new backend capabilities or AI breakthroughs can solve untapped investigator pain points.

Job Requirements

  • Love for writing clean, performant code and a track record of building production-grade backend systems.
  • Strong proficiency in Python and TypeScript (Node) for building scalable web services, open to Go as well.
  • Experience with agentic patterns, including function calling, tool use (MCP), and orchestrating multi-step LLM workflows.
  • Ability to write and optimize complex SQL queries and data access patterns to ensure LLMs are grounded in real-time data without sacrificing latency or system performance.
  • Deep understanding of OpenAI/Anthropic/Gemini APIs, prompt engineering, and managing complex conversation state/context.
  • Proven ability to build seamless API integrations with LLMs, managing the bridge between unstructured model outputs and structured internal services through robust error handling and schema validation.
  • Strong database confidence with PostgreSQL, OLAP Databases, and Redis. You know how to use the right tool for the job to ensure fast retrieval.
  • Experience with microservice-oriented architecture and designing for scale (we handle 1B+ images daily).
  • Proficient with AWS services, Kubernetes (EKS), Docker, and CI/CD build tooling.
  • You thrive in "zero-to-one" environments, taking ambiguous problems and turning them into technical roadmaps.
  • Experience with LLM evaluation (LangSmith/Langfuse), vector search/RAG, or infrastructure-as-code (Terraform).

Benefits

  • Flexible PTO: We seriously mean it, plus 11 company holidays.
  • Fully-paid health benefits plan for employees: including Medical, Dental, and Vision and an HSA match.
  • Family Leave: All employees receive 12 weeks of 100% paid parental leave. Birthing parents are eligible for an additional 6-8 weeks of physical recovery time.
  • Fertility & Family Benefits: We have partnered with Maven, a complete digital health benefit for starting and raising a family. Flock will provide a $50,000-lifetime maximum benefit related to eligible adoption, surrogacy, or fertility expenses.
  • Spring Health: Spring Health offers a variety of mental health benefits, including therapy, coaching, medication management, and digital tools, all tailored to each individual's needs.
  • Caregiver Support: We have partnered with Cariloop to provide our employees with caregiver support.
  • Carta Tax Advisor: Employees receive 1:1 sessions with Equity Tax Advisors who can address individual grants, model tax scenarios, and answer general questions.
  • ERGs: We want all employees to thrive and feel like they belong at Flock. We offer three ERGs today - Women of Flock, Flock Proud, and Melanin Motion. If you are interested in talking to a representative from one of these, please let your recruiter know.
  • WFH Stipend: $150 per month to cover the costs of working from home.
  • Productivity Stipend: $300 per year to use on Audible, Calm, Masterclass, Duolingo, Grammarly and so much more.
  • Home Office Stipend: A one-time $750 to help you create your dream office.

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