# Senior Software Engineer, Intelligence

**Company:** [AngelList](https://hotfix.jobs/companies/angellist)
**Location:** San Francisco, CA
**Role:** Backend Engineering
**Experience:** 4+ years
**Skills:** Go, Opensearch, Elasticsearch, LLMs, Semantic Search, Agent Orchestration, Retrieval, Embeddings, Data Pipelines
**Posted:** 2025-11-13

> Builds and operates services for retrieval, semantic search, agent orchestration, model integrations, and data pipelines using proprietary private-market data. Requires 4+ years experience with Go, production search systems like OpenSearch, and LLMs.

## Job Description

## Responsibilities
- Design, build, and operate services for retrieval, semantic search, agent orchestration, model integrations, and data pipelines.
- Work with private-market datasets to surface high-value signals for investors.
- Design and operate OpenSearch-backed retrieval and semantic search systems.
- Build and run agent orchestration, model integrations, and safety layers for LLM-driven workflows.
- Prototype new AI-driven features and productionize them in a Go-first codebase.
- Own large features end-to-end and improve testing, observability, and operational practices.

## Requirements
- Full-stack generalist or backend specialist with 4+ years building large-scale web applications or backend services.
- Comfortable writing clean, production-quality Go (Golang) code, including services, libraries, and tests.
- Experienced in production search systems such as OpenSearch, Elasticsearch, or comparable platforms.
- Excited about LLMs, agents, embeddings, and retrieval; able to turn prototypes into reliable services.
- Experience with LLM APIs, tokenizers, or cloud GenAI SDKs is a plus.
- Self-starter with experience starting something meaningful (startup, open-source project, etc.).

## Success Measures
- Delivers high-quality, well-tested code meeting goals and timelines.
- Contributes to team discussions with technical perspectives.
- Mentors and supports other engineers.

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