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08

QA & Performance

We implement complete testing strategies and performance optimization. Automated tests, Core Web Vitals audits, and continuous monitoring to guarantee product quality. We use Playwright for E2E tests, Jest for unit tests, and Lighthouse CI for performance. The goal is that every deploy has confidence that nothing broke and load times stay within Google's standards.

Datos del sector

Un bug detectado en producción cuesta hasta 100 veces más que si se detecta en la fase de diseño o desarrollo (IBM Systems Sciences Institute)

Google reporta que cada segundo adicional de tiempo de carga reduce las conversiones aproximadamente un 7% en e-commerce

La inversión en QA temprana y performance tiene retornos muy claros: menos bugs, mejor experiencia, más conversión. Es de los servicios con mejor ROI demostrable.

What's included

Deliverables

Unit and integration test suite
E2E tests with Playwright / Cypress
Core Web Vitals audit
LCP, INP & CLS optimization
Continuous performance monitoring
Automated QA pipeline in CI
Tech Stack
PlaywrightJestLighthouseSentryGitHub Actions
How we do it

Process

01

Diagnosis

We identify product areas without test coverage and performance bottlenecks.

02

Strategy

We define what to test, with which tools, and performance thresholds.

03

Implementation

We write tests, configure Lighthouse CI and Sentry.

04

Automation

We integrate everything into the CI pipeline to run on every PR.

By location

QA & Performanceby city

QA & Performance en Buenos AiresQA & Performance en CABAQA & Performance en CórdobaQA & Performance en RosarioQA & Performance en MendozaQA & Performance en Mar del PlataQA & Performance en La PlataQA & Performance en TucumánQA & Performance en MadridQA & Performance en BarcelonaQA & Performance en ValenciaQA & Performance en SevillaQA & Performance en MálagaQA & Performance en BilbaoQA & Performance en ZaragozaQA & Performance en ParisQA & Performance en LyonQA & Performance en ToulouseQA & Performance en BordeauxQA & Performance en LilleQA & Performance en NantesQA & Performance en Ciudad de MéxicoQA & Performance en GuadalajaraQA & Performance en MonterreyQA & Performance en BogotáQA & Performance en MedellínQA & Performance en LimaQA & Performance en Ciudad de PanamáQA & Performance en MontevideoQA & Performance en SantiagoQA & Performance en São PauloQA & Performance en Rio de JaneiroQA & Performance en Belo HorizonteQA & Performance en CuritibaQA & Performance en Porto AlegreQA & Performance en BrasíliaQA & Performance en FlorianópolisQA & Performance en RecifeQA & Performance en LondonQA & Performance en ManchesterQA & Performance en BirminghamQA & Performance en EdinburghQA & Performance en BristolQA & Performance en LeedsQA & Performance en DublinQA & Performance en CorkQA & Performance en GalwayQA & Performance en AmsterdamQA & Performance en RotterdamQA & Performance en The HagueQA & Performance en EindhovenQA & Performance en UtrechtQA & Performance en New YorkQA & Performance en San FranciscoQA & Performance en AustinQA & Performance en MiamiQA & Performance en Los AngelesQA & Performance en ChicagoQA & Performance en SeattleQA & Performance en Boston
Frequently asked questions

FAQ

What are Core Web Vitals?

They're Google's metrics that measure user experience: LCP (Largest Contentful Paint — load speed), INP (Interaction to Next Paint — responsiveness), and CLS (Cumulative Layout Shift — visual stability). They directly affect SEO.

Can you do QA on a product you didn't develop?

Yes. We do quality and performance audits on any web product, regardless of who built it. We deliver a report with prioritized findings and recommendations.

What test coverage do you recommend?

We don't chase arbitrary percentages. We prioritize tests on critical business paths (checkout, auth, payments) and code that changes frequently. 70-80% coverage on the core is usually a good target.

Do you use Playwright or Cypress for E2E?

We prefer Playwright for its native multi-browser support, better performance, and more modern API. But if the project already uses Cypress, we work with what's there without forcing an unnecessary migration.

Have an idea? Let's make it real.

No strings attached. Just an honest conversation about your project.