Toolmill Briefswhat companies are building, read from their hiring

Company brief · updated 2026-10-19

KERNEL

kernel.sh · B2B · browser infrastructure for ai agents and web automations. anti-bot detection, reusable sessions, fast spin-up, and autoscaling browsers.

9open roles
1new in 30 days
0closed in 30 days
0remote-eligible
freezehiring velocity

What they're building

Core browser infrastructure: distributed systems, autoscaling, low latency and observability weak signal

Today: autoscaling cloud browsers with browser pools, on-demand sessions, live view, replays, logs and telemetry (kernel.sh)

Roles: Infrastructure Engineer

Requirements mention: scaling and designing distributed systems · microVMs / unikernels · low latency · autoscaling · observability · core infrastructure

No inference drawn; one role only. The role has been open since 2025-12-04.

Browser security and sandboxing of the Chromium-based runtime weak signal

Today: isolated cloud Chromium browsers for work that requires a real website (kernel.sh)

Roles: Browser Security Engineer

Requirements mention: Chromium internals · browser sandboxes · container isolation · renderer/network stacks

No inference drawn; one role only.

Developer-facing content, samples, SDKs, CLI and docs for agent builders moderate signal

Today: openapi api, official typescript, python, and go sdks, the KERNEL cli and a hosted mcp server (kernel.sh)

Roles: Developer Advocate · DevRel Engineer · Technical Content Engineer · Product Engineer

Requirements mention: code samples, demos, and lightweight apps · developer documentation · tutorials, guides, and demos · MCP servers · SDK · CLI · hands-on builder with LLMs and agents

Inference: four roles asking for tutorials, sample apps and SDK or CLI work point to more investment in developer onboarding and education for agent builders on the existing product.

Technical sales coverage for browser infrastructure moderate signal

Today: cloud browser infrastructure for AI agents, with managed auth, proxies and SDKs (kernel.sh)

Roles: Account Executive · Solutions Engineer

Requirements mention: full sales cycle · API-first products · technical sales · solution design · Playwright · CDP · MCP server

Inference: an Account Executive and a Solutions Engineer opened four days apart suggest Kernel is adding an assisted, technical sales motion alongside developer self-serve.

Where the headcount is going

DepartmentOpen
Engineering7
People1
Sales1

Eight open roles, seven in Engineering and one in Sales, all in San Francisco and none remote, with no new roles in the last 30 days and three opened in the prior 30 days.

Who they need

Seniority: Two senior roles and one mid-level role; five roles have no seniority stated.

Skills named most: browser automation, secure browsers, browser-based agents, autoscaling, observability, SDK, AI agents, developer documentation, developer tools, browser infrastructure, demos, MCP server

Locations: All eight roles are listed as San Francisco; no remote roles.

How to use this

If you're applying: Apply only if you are in San Francisco or willing to relocate, since no roles are remote. The browser security and infrastructure roles ask for deep systems skills. The developer advocate, DevRel and content roles ask for hands-on building with agents and writing docs and tutorials. The Infrastructure Engineer role has been open since December 2025, so a direct approach to the team may help.

If you're selling or recruiting: Eight open roles, all in San Francisco. The velocity flag is freeze because no roles opened in the last 30 days, though three opened in the prior 30. Hiring is mostly engineering: systems and browser security, plus four developer-facing roles. The Account Executive and Solutions Engineer pair is the only go-to-market hiring, and both want candidates who understand browser automation and API-first developer tools.

Get told when KERNEL opens new roles.

Weekly, only when something changed. One click to stop.

Open roles (9)

TitleDepartmentLocationPosted
People Operations LeadPeopleSan Francisco2026-10-20
Technical Content EngineerEngineeringSan Francisco2026-09-17
Account ExecutiveSalesSan Francisco2026-09-12
Solutions EngineerEngineeringSan Francisco2026-09-08
Browser Security EngineerEngineeringSan Francisco2026-08-13
Developer AdvocateEngineeringSan Francisco2026-06-08
DevRel EngineerEngineeringSan Francisco2026-06-06
Product EngineerEngineeringSan Francisco2026-02-27
Infrastructure EngineerEngineeringSan Francisco2025-12-04