Sixtyfour

Intelligence Infrastructure on People and Entities

Y Combinator

Discussion

aienterprise-software

https://www.sixtyfour.ai/ ↗

Company facts

HiringEarly-stage

Founded: 2025
Employees: 12
Headquarters: United States

About

Sixtyfour deploys AI agents that investigate people and companies across the open and dark web, official records, proprietary databases, and unstructured sources. We resolve identities, map entity relationships, and surface risk signals for teams where data quality is essential.

2 jobs

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2 jobs Posted Sort

Sixtyfour

2 months ago

Senior Software Engineer - Infrastructure

Open 45d On-siteNorth AmericaSenior

United States

Senior Software Engineer builds and scales backend infrastructure, APIs, billing systems, and LLM-powered workflows for a compliance-focused data platform in San Francisco.

AI API Api Design AWS CloudWatch +10 skills

Sixtyfour

last year

AI Engineer — Research Agents (Full-Stack)

Open 43d On-siteNorth America

United States

What you’ll do Design and ship agentic systems (tool calling, multi-agent workflows, structured outputs) that reliably fetch, extract, and normalize data across the web and APIs. Build and operate search/indexing…

Agentic AI API AWS CI/CD CloudWatch +25 skills

Sixtyfour

Senior Software Engineer - Infrastructure

AI Engineer — Research Agents (Full-Stack)

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