Mendral Logo Mendral
Mendral Logo

Founding Engineer

💰 $180,000 - $220,000 🌍 San Francisco, California 📅 05/19/2026

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Job Description

Mendral is The AI DevOps Engineer. Three always-on agents handle security,
reliability, and performance, plus custom automations for anything else
specific to your stack. From the team behind Docker and Dagger (YC W19).

We run in production at PostHog, Metabase, Luminai, Inngest, Clipboard Health,
Blaxel, among others. Across millions of CI jobs, 73% of failures auto-match
to known issues. PostHog accepted 104 fixes from Mendral in a single month.

**The role**
We're looking for our a full-time engineer who thinks and operates like a co-
founder. Someone who understands what we're building, why it matters, and can
make high-quality technical decisions without waiting for direction.

You'll own large surface areas of the product and infrastructure. You'll ship
fast. You'll make architectural choices that pay off for years. The
expectation isn't to write every line of code yourself. It's to make the right
calls on what gets built, how, and why.

**What you 'll work on**

* Agent architecture and orchestration across hundreds of concurrent CI runs
* Multi-model routing across Anthropic and OpenAI, picking the right model per task
* The log ingestion pipeline (ClickHouse, billions lines of log ingested per week) that powers agent investigations
* Sandboxed execution, where each agent gets a full dev environment
* New agents (custom automations, security workflows, performance analyses) and the framework they share
* The GitHub App, Slack, and the integrations layer pulling signal from infrastructure (Datadog, Sentry, GCP, AWS, etc…)

**What we 're looking for**

* **Builder mindset.** You've shipped real products, not just features. You've made hard tradeoffs with incomplete information and lived with the consequences.
* **AI-native workflow.** You actively use AI coding agents every day. You understand prompt engineering, context management, and running multiple agent instances in parallel.
* **Taste over volume.** We care more about architecture decisions, system design, and technical judgment than lines of code.
* **CI/CD and infrastructure fluency.** Real experience with GitHub Actions, CI pipelines, containers, and cloud infrastructure.
* **High agency.** You enjoy a high level of autonomy and know how to use it.

**Why now**
Seed-funded with named customers in production. Founders with a decade of
DevOps experience (Docker, Dagger). You'll be one of the first full-time hire,
and the equity reflects that.

_Based in the SF Bay Area is preferred, or remote in a compatible timezone._

**About Mendral**
Mendral is The AI DevOps Engineer. Three always-on agents handle security,
reliability, and performance, plus custom automations for anything else
specific to your stack. From the team behind Docker and Dagger.

CI was built for humans. AI coding tools now generate hundreds of PRs a day
per team, and traditional pipelines can't keep up. Flaky tests, slow builds,
supply chain risk, noisy alerts: all of it lands on the engineers who least
want to be looking at it. Mendral handles that work autonomously, so shipping
isn't gated on humans staring at CI.

We're two engineers who spent the last decade building developer
infrastructure. Sam was Docker's first hire and VP of Engineering, scaling the
team from 3 to 100+. Andrea authored Docker's first commit. We co-founded
Dagger (YC W19) with Solomon Hykes, then started Mendral (YC W26) to solve the
reliability problem we kept hitting at every team we worked with.

Today Mendral runs in production at PostHog, Metabase, Luminai, Inngest,
Clipboard Health, Blaxel among others. Across millions of CI jobs, 73% of
failures auto-match to known issues. PostHog accepted 104 fixes from Mendral
in a single month. Anyshift pinned the safe Trivy version two weeks before the
supply chain attack, so they didn't have to rotate keys across their infra.