MintMCP helps enterprises safely do more with Agents (e.g., governance around MCP tools and agents like Claude Code / Cowork, and others). We're building an MCP gateway as the foundation with the proper abstractions that enterprises need to allow long running agents to be safely deployed across an entire organization; organizations can easily and clearly limit the blast radius of what an agent can do, while giving it the right combination of tools to be useful. We're a small team of humans with dozens of agents; our company operates on the infrastructure we build for enterprises. We're looking for agent-forward engineers and GTM folks to help solve scaling problems, maintain the highest standards for security, make agents and MCPs usable and useful. Problems we're solving right now: Agent Identity, ReBaC for tool resources, scalable hosting of private MCP servers, and our agent platform that vertically integrates with the foundational MCP gateway layer. If you have experience in infra, security, and agents, and MCPs, you might find the problems we're working on exciting!

Mintlify (YC W22) powers the documentation of 2,500+ companies including Anthropic, Pinecone, and Zapier, to over 20% of the last YC batch.

Be the 2nd technical hire for a greenfield platform for securities lending, repo and delta-1 trading. Python ETL + Java, Postgres, working directly with traders and ops to replace workflows that don't scale.

Mission Control empowers explorers to advance their space missions. We innovate to make modern software viable to use in space, unlocking the potential of new scientific and commercial opportunities on Earth, Moon, Mars, and Beyond.

Missive brings inbox collaboration to teams that run on email. This isn’t your typical SaaS; it’s a full-fledged app users live in all day. We integrate with dozens of APIs and servers, process 10M+ emails, 100M+ requests per day serving thousands of users who collaborate in real-time. Missive started over a decade ago. It is mature, still 100% founder-owned and highly profitable. We’re in it for the long run; a small, dedicated team building a product customers genuinely love. We keep our stack simple and that doesn’t mean boring. The backend is a Rails monolith, Postgres, plus a few tiny services in Ruby, Node or Bun.

We’re building Mithril to be the cloud compute platform AI developers actually want—no more battling procurement, limited quotas, or clunky tooling. Our platform gives ML engineers frictionless access to high-performance GPUs, clean APIs, and modern infra primitives to train, fine-tune, and serve state-of-the-art models. Backed by Sequoia, Lightspeed, and founders of Databricks, Google Brain, and Scale.

Mitte is an AI creative suite. We've built our own media agent and we're hiring engineers who want this to be the best work of their career. Founded by an ex-Superhuman lead engineer. Lean startup and unix philosophy run deep at Mitte. We ship every day and like to design systems, be thoughtful about patterns and primitives before scaling the codebase, especially with AI. We're hiring two roles: Backend Engineer (Elixir, Go) and Full-Stack Engineer (Go, TypeScript, Redux Toolkit).

MixRank processes petabytes of data every month from web crawling. We have hundreds of customers using our data products including Google, Amazon, Facebook, Intel, and Adobe, across industries including Finance, Recruiting, Sales, Marketing, and Security. We’re a fully-remote company with a global footprint in over 20 countries. We are growing, profitable, employee-owned, with no dependence on outside funding.

Mixpeek provides configurable data replication pipelines, handling replication, inference, durability, and consistency for building RAG apps.