Jest automation testing services
Open new horizons with our Jest testing expertise.
Hire Jest developers backed by DeviQA’s 15 years of experience to enhance your testing framework with modular, reusable test cases that scale as your product grows.
Trusted by
When Jest test automation
is the right choice
You build React or JavaScript-heavy applications and need a test framework that speaks your language.
You want fast, reliable unit and integration testing with zero configuration.
You need snapshot testing to catch unintended UI changes early.
You’re aiming for high test coverage without slowing down development.
You want built-in mocking and isolation to keep tests focused and clean.
You’re working in a CI/CD environment and need instant test feedback at every commit.
You need seamless integration with TypeScript, Babel, or custom setups.
You want a mature, well-documented, and widely adopted testing solution your team can trust.
Jest automation testing services
We provide end-to-end Jest automation testing services to help you build fast, reliable tests for JavaScript and React apps.
Consulting on Jest test automation
We help you choose the best approach to leverage Jest for fast, reliable JavaScript and React app testing.
Jest test framework setup
We set up a tailored Jest framework that fits your codebase, tooling, and development workflow.
Optimizing existing test automation
We enhance your current Jest test setup to improve speed, reliability, and test coverage.
Jest test script development
We write clean, modular Jest tests to validate app functionality and catch bugs early.
Integrating tests into CI/CD pipelines
We integrate Jest tests into your CI/CD process — using tools like GitHub Actions or GitLab — for faster feedback and smoother releases.
Jest test support & maintenance
We keep your Jest tests updated as your app evolves and offer ongoing support to ensure long-term test health.
Can’t find engineers who actually know Jest inside out?
Our team brings deep expertise in Jest architecture, mocking, and performance tuning.
Global healthcare giant
90%
Test coverage
1.6k+
Test cases created
X18
Faster regression testing run
“They treat our automated testing project as a development effort rather than a testing effort, always anticipating next steps and improvements. Whenever we need changes, they’re able to respond quickly. They take on current problems and address future issues as well. “
Collaboration on your terms
Backed by 15+ years of expertise, DeviQA offers three flexible models for Jest automation services to fit your project’s needs, timeline, and budget.
Staff augmentation
Boost your in-house team with experienced Jest test engineers on demand.
Advantages:
Quick ramp-up with zero onboarding hassle
Flexibility to scale resources up or down
Retain full control over execution
Best for:
Teams needing extra expertise without long-term commitments.
Dedicated QA team
A fully managed team focused solely on your Jest automation testing efforts.
Advantages:
Seamless integration with your internal processes
Full control over priorities and communication
Scales with your product roadmap
Best for:
Companies building long-term test automation capabilities in-house.
Project-based outsourcing
We handle your entire Jest automated testing initiative — from setup to execution.
Advantages:
Clear deliverables, timelines, and ownership
No need to manage daily operations
Cost-effective and fully hands-off
Best for:
Companies looking to delegate Jest test automation while focusing on core product development.
Why choose us for Jest test automation services?
Over 600,000 project man-days successfully delivered.
We take full accountability for our work.
A range of value-added services at no extra cost.
Free test trial. Try us before making any payment.
Our engineers are senior Jest developers with strong autonomy and self-starting ability.
With a 96% retention rate, we offer stable teams, compared to the industry average of 80%.
Extensive testing lab with a wide range of environments, platforms, and devices.
Access to a technology community of over 1000 QA engineers and experts.
Experience the DeviQA difference
From initial consultation to full-scale QA implementation, we deliver results.
Our approach to Jest test automation
A strategic, end-to-end process designed to ensure fast, reliable, and maintainable test automation with Jest.
Test strategy & planning
We assess your codebase, architecture, and business goals to define a tailored Jest testing strategy aligned with your development lifecycle.
Environment setup
We configure the Jest testing environment with your tech stack — including Babel, TypeScript, or custom setups — ensuring full compatibility and performance.
Test architecture design
We build a scalable test structure with clear separation of unit, integration, and snapshot tests to support maintainability and clarity.
Test development
Our engineers write clean, modular, and high-coverage Jest test cases, focusing on logic validation, UI behavior, and reusable components.
CI/CD integration & optimization
We integrate Jest into your CI/CD pipelines to run tests on every commit, optimizing for speed, reliability, and actionable feedback.
Maintenance & scaling
We continuously update, refactor, and scale your Jest test suite as your application grows — keeping it efficient, relevant, and easy to manage.
Here’s what people are saying
about DeviQA
“It was so easy to integrate your people with us and we didn't have any problems.”
Janosch Greber
VP of engineering at RealTyme
Questions & answers
Can I hire Jest developers who can also refactor my legacy Mocha tests?
Yes — our engineers migrate specs to Jest, replace outdated assertions, and preserve historical coverage so you keep traceability while gaining speed.
What’s the typical turnaround from kickoff to green CI when I hire a Jest expert?
For most React or Node projects we achieve a passing baseline suite integrated into CI/CD within two weeks, then grow coverage iteratively alongside your sprints.
How does Jest automation testing fit into a mono‑repo with mixed TypeScript and Babel projects?
We configure project‑based runners, custom ts‑jest presets, and path aliases so each package tests independently while reporting unified coverage.
Will snapshot testing in Jest automation create maintenance overhead for a fast‑changing UI?
We set guardrails — such as targeted directory conventions, size limits, and review hooks—so snapshots add value without turning into noise.
Can I hire a Jest engineer just to design mocking utilities for complex third‑party SDKs?
Absolutely, our specialists craft reusable factory mocks and dependency‑injection helpers that slash setup code across your entire suite.
How do you prevent flakiness in Jest test automation when tests hit async APIs?
We enforce deterministic data fixtures, global retry logic, and lifecycle hooks that wait on network stabilizers before assertions run.
What reporting stack do you recommend for enterprise‑grade Jest automation?
We pair Jest’s JSON output with custom Grafana dashboards and Slack alerts, giving product owners real‑time insight without drowning developers in logs.
If I hire Jest developers, can they own test governance as well as coding?
Yes — our team defines coding standards, linting rules, and merge‑gate criteria so quality stays consistent even after we hand off.
How do you balance unit vs. integration depth when delivering Jest automation testing under tight deadlines?
We prioritize critical business logic with high‑value integration paths first, then fill unit gaps using risk‑based matrices to deliver maximum confidence per sprint hour.