For a load test that actually predicts what happens live
Hire Performance Testers
A load test can pass cleanly at ten times expected traffic while production falls over at twice that load. That gap almost always means the test never modelled real traffic. These testers are evaluated on catching that exact mismatch, then placed to give your team a capacity number they can genuinely trust.
- Profiles typically within two business days
- Replacement Assurance: If an engineer is not the right fit, a replacement from our own team starts within ten business days of your request, at no extra cost
- You interview before placement if you want to
- At least four hours a day inside your core working hours. Two hours plus a daily written handover for the US West Coast
- 14-Day Risk-Free Trial: For your first engineer on a time-and-materials engagement. Up to 14 calendar days or 80 logged working hours, whichever comes first. End within the trial and pay nothing for trial hours. Continue beyond it and those hours are billed at the agreed rate. Unpaid trial work remains ours if you stop
How we evaluate a performance tester
The tasks, the signals and the onboarding, walked through by the people who run them.
90 secSample frame · video pending01Published, not promised
The assessment behind every tester we send.
The performance testing bar is published, not assumed: five competencies, the exact task behind each, and the shortcut that ends a candidacy. Most interviews ask about tools. This one asks whether the test would actually predict production behaviour.
What we listen forWhether the test models real traffic, not an easy synthetic pattern.
A load test passes cleanly at ten times expected traffic, but the site falls over at twice expected traffic in production. Diagnose the mismatch.
- What strong sounds like
- Investigates whether the synthetic load pattern actually resembles real user behaviour, such as think time, request mix and concurrency shape.
- What gives us pause
- Assumes the production infrastructure must be misconfigured, without questioning whether the load test itself modelled real traffic accurately.
JMeter · k6 · Gatling
Grafana · Datadog · New Relic
Profiling · Capacity Modeling · APM
CI/CD Integration · Docker · Cloud Load Generators
02Who you actually meet
The bench, priced by seniority.
Three seniority tiers, priced honestly, and the engineers who fill each one today. Real names and photos take their place as soon as we can share them, and the standard stays exactly the same.
Engineer
Features scoped tightly enough to ship inside your review bar, every time.
The right first hire when your seniors already set the standard.
$2,200–2,800per month
Senior
The hard module nobody else wants to own, taken end to end.
Ownership of a surface, without adding a manager to your headcount.
$3,100–3,900per month
Lead
The workstream's decisions, made daily, so nothing waits on a meeting.
One accountable voice for a pod or initiative that can't afford to drift.
$4,200–5,300per month
Performance tester
3 yrs · US East overlap
Rebuilt a load test to model real transaction patterns after production capacity kept surprising the team
- JMeter
- k6
- Grafana
Senior performance tester
6 yrs · UK + EU hours
Traced a throughput ceiling to a connection-pool limit nobody had measured directly
- Gatling
- APM
- Capacity Modeling
Lead performance engineer
9 yrs · EU + US split
Owns the automated regression-detection standard catching slowdowns before customers notice
- Architecture
- Datadog
- CI/CD Integration
Indicative ranges, representative profiles. Exact figures and named engineers arrive with your shortlist.
Weighing this against a freelancer, a direct hire or a marketplace? See the honest comparison
03From stated problem to first change
Four steps, each closing on evidence.
This process tests capacity judgement, not familiarity with a load-testing tool's syntax. You can stop at any point owing nothing.
Define the capacity problem
We map where your system's load testing or capacity confidence is actually thin. The brief names that gap, not a list of load-testing tools to know.
A brief your leads signMatch against your systems
Candidates are screened against your actual traffic patterns, your infrastructure and your review culture. Three testers who understand your systems beat thirty who list a load tool on a CV.
Three fits, not thirty CVsAssess on the real tasks
Your team can watch the bottleneck-diagnosis and capacity-planning exercises directly. What shows up is honest analysis, not a confident-sounding but unsupported number.
Evaluation you can watchOnboard inside your process
Access, standards and a first real load test against a genuine bottleneck. Continuity cover keeps a departure from ever becoming your capacity blind spot.
A merged change in week one
04Evidence and proof
Testers who made the capacity number trustworthy.
Performance proof is a prediction that held up in production, not a benchmark that looked good in isolation. Every record here waits for written client approval before production.
Explore case studies
A capacity number leadership could finally trust.
Vela Ledger's previous load tests had confidently predicted capacity that production never actually reached. An embedded performance tester rebuilt the test to model real transaction patterns, giving leadership a capacity figure that finally held up.
- Capacity estimate accuracy
- Corrected to match production
- Time to rebuilt test
- One sprint
He found the exact connection-pool limit that was silently capping our throughput for months.
Sample · pending client approval
The regression alerts she set up caught a slowdown before a single customer complained about it.
Sample · pending client approval
05Three shapes, one standard
Add a tester, a capacity pod, or a practice.
Most teams start with one tester validating capacity for an existing system. Some need a pod that owns performance confidence across every release. Where a platform needs building for scale from the ground up, we point you to the practice instead.
- Team extension
One named tester
A single performance specialist inside your direction and your reviews. The smallest commitment, and the usual first step.
- Delivery pods
A capacity pod
A pod with its own lead that owns load testing and capacity planning across every release. You set priorities while the pod carries delivery.
- Data & Cloud
The practice, not the person
Where a platform needs building for scale from the ground up, data and cloud engineering takes that scope on instead.
06Straight answers
Asked before a performance testing hire is signed.
01What does a performance tester actually do day to day?
Designs load tests that model real traffic honestly, traces bottlenecks to the specific resource at fault, and builds automated detection so a slow drift gets caught before it compounds. The unglamorous majority of the work is making a capacity number something leadership can actually rely on.
02Do you hire for a specific load-testing tool?
Matched to your actual stack. Judgement about realistic load modelling transfers across JMeter, k6 and Gatling, then the evaluation confirms familiarity with whichever you run.
03Can we run our own interviews as well?
Yes, the published tasks are built to be reused directly. Several clients now run the bottleneck-diagnosis exercise themselves in later hiring rounds.
04How fast can a performance tester start?
A shortlist arrives within days from a bench evaluated continuously. Onboarding speed after that depends mostly on how quickly your side can grant infrastructure access.
05Who manages the tester day to day?
Your leads set priorities and hold the release standards. We hold the administrative load beneath it: payroll, continuity, and stepping in if a transition is ever needed.
06What if the tester is not the right fit?
Tell us in the first few weeks and we cover the replacement at no cost. The next tester starts already briefed on the exact gap, which keeps a repeat mismatch rare.
07Do your performance testers use AI tools?
Yes, for drafting test scripts and repetitive scenario scaffolding. The load modelling and bottleneck judgement stay entirely with the tester.
08How does pricing work for a hired performance tester?
The bands above frame the honest range; the shortlist fixes the precise figure once scope is agreed. Monthly billing, no placement fee, notice-period exit only.