sandbox.vetted · 2026 cohort

Core systems engineers,
sourced and sandbox-vetted

We don't ship resumes. We ship engineers who have already booted, instrumented, and shipped patches inside a replica of your stack. Every candidate is validated in our isolated laboratory before they reach your inbox.

94%
first-shortlist hire rate
11d
median time to validated slate
1,200+
kernel-tier candidates sandboxed
sandbox://candidate/eng-0742
labs@sandbox~$boot --image kernel-6.8 --probe cgroup-v2
[ ok ] init complete in 1.42s
[ ok ] cgroup v2 hierarchy mounted
labs@sandbox~$vet run --suite kernel.regression
running 184 assertions ...
pass 184/184 · p99 latency -12.3%
labs@sandbox~$shortlist push --client acme
candidate eng-0742 promoted → tier:staff
_
pipeline.verification
live
01brief.parse()
Intake
02graph.traverse()
Source
03vm.boot()
Sandbox
04assert.kernel()
Vet
05rank.deliver()
Shortlist
~/why

Hiring at the kernel layer is not a keyword search.

The engineers who keep autonomous fleets, embedded radios, and hyperscale control planes alive cannot be filtered by a recruiter scanning buzzwords. They are identified by reading their patches, instrumenting their code, and watching how they reason under live faults. That is the entire point of TechHire Labs.

Each engagement begins by mirroring your environment — language, runtime, build system, on-call topology — into an isolated sandbox. Candidates we have already pre-graded are then dropped into your replica and asked to perform real work: tracing a regression, hardening a syscall path, instrumenting a latency budget, or designing a failure-isolation boundary. We watch the work; you read the report.

The result is a shortlist where every name has been observed solving a problem shaped exactly like yours. No more 6-round loops that end in a withdrawn offer. No more staff-level interviewers burning a week per requisition. You receive three to five validated humans and a complete evidence packet for each.

~/competency

Advanced system competency matrix

system.competency.matrix
v4.12 · 6 vectors
vectorjrmidsrstaff
Kernel & Drivers
Distributed Systems
Performance Engineering
Embedded / RTOS
Security & Cryptography
Observability & SRE
~/domains

Where our engineers ship

domain
Autonomous vehicles

Perception runtimes, deterministic schedulers, sensor-fusion pipelines under hard real-time budgets.

domain
Embedded infrastructure

RTOS, baseband, secure boot, and constrained-device firmware shipped at industrial scale.

domain
Enterprise cloud

Control planes, multi-tenant data paths, observability spines, and SRE platforms operating at 9s.

~/initiate

Hand us the requisition. We'll hand you the engineers.

Send a brief and we'll mirror your stack into the lab within 72 hours.