Let us break it — index

Your software fails eventually. Let's pick the date.

We run your product past its limits — race conditions, load cliffs, auth edges, the paths your tests never take — and hand your engineers reproducible failures instead of opinions. Pre-launch, or every sprint.

Start a conversation01 / 03 services available

incident_042 / checkout-worker LIVE

$ ./replay --scenario=double-submit --concurrency=2

[fail] invariant violated: order.status -> paid twice
request_id: req_7f3a / req_7f3b

- if (order.status === "pending") {+ if (await lock(order.id)) {chargeCard(order.total)+ }}

reproduction rate100% / 100 runs

patch verified against replay suite

edge case found

Pillar 01

Depth, not coverage theater

Architecture, concurrency, state, load, and the seams between services. Where real outages actually start.

Pillar 02

Evidence over opinion

Every claim ships with a repro, a trace, and a blast-radius call. If we can't break it, we say so.

Pillar 03

Adversarial by design

We model the worst-case user and the attacker behind them. Assumption-hunting, not checklist-clearing.

Pillar 04

Built for velocity

Findings land in your tracker as reproducible tickets with owners and severity — same day. No 60-page PDF nobody opens.

Specimen — severity card

Checkout drops writes above 340 rps

SEV-1repro: 4/4trace attachedowner: payments

Connection pool saturates before the queue backs off. Orders acknowledge to the client and never persist. Reproduced on staging with production-shaped traffic.

Time-boxed audit

Pre-Launch Offensive Audits

Time-boxed stress testing before critical releases. We turn your launch checklist into a list of things that can actually fail.

release gates · abuse paths Monthly retainer

Embedded QA Retainers

A senior QA brain in your GitHub PRs and sprint cycles, finding the edge cases that a happy-path suite cannot see.

PR reviews · weekly cadence Ongoing capability

Break & Concurrency Labs

Synthetic load, state desync, API limits, and race conditions. We make production pressure reproducible while it is still cheap.

load tests · race conditions

Field notes

Field notes.

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Sep 15, 2026

One reset link. Three logins. Zero alerts.

A password reset link still worked 31 hours after the password had been changed. The token had an expiry. It did not have a use count.

Traditional QA says — on the offer

We provide comprehensive quality assurance services tailored to your business needs.

We say

We break your product on a schedule you choose, then tell you exactly how.

Traditional QA says — on a finding

A potential issue was identified in the payment module that may impact users under certain conditions.

We say

Checkout drops writes above 340 rps. Orders confirm to the user and never persist. Repro attached, 4 for 4.

Traditional QA says — on scope

Our test coverage improvement initiative will drive measurable quality outcomes.

We say

Coverage isn't the goal. We go after the six paths that take you down, and we ignore the rest.

Traditional QA says — on communication

We maintain proactive stakeholder communication throughout the engagement lifecycle.

We say

You get a Slack channel and our unfiltered opinion. No status meetings you didn't ask for.

Traditional QA says — on a false positive

Our rigorous validation process minimizes false positives to ensure actionable findings.

We say

If we can't reproduce it, we don't file it. No maybes, no "might happen under load."

Start a conversation

Break it here. Not in prod.

Tell us where it hurts. We will come back with a point of view, a proposed attack surface, and zero theater.

response_time < 2 business days
engagements remote / worldwide