Integration testing services
Integration testing for APIs and connected systems.
DeviQA provides integration testing for APIs, microservices, databases, cloud services, payment systems, and third-party platforms. Since 2010, we have tested system integrations for Tipalti, ChargeAfter, Mimecast, SoftNAS, and Sprinklr. Our engineers validate data exchange, service contracts, authentication, error handling, and end-to-end workflows using Postman, REST Assured, Faraday, and other integration testing tools. DeviQA is certified to ISO 9001, ISO/IEC 27001, and ISO/IEC 20000-1 and tests integrations across web, mobile, desktop, and cloud environments.
Trusted by
Integration testing challenges addressed by DeviQA
DeviQA helps teams detect broken API contracts, incorrect data exchange, authentication failures, service dependency issues, and third-party integration defects before release.
Software integration testing services provided by DeviQA
DeviQA provides functional, data, and automated integration testing for APIs, services, databases, system modules, and third-party platforms. We verify how connected components exchange data, handle errors, and complete cross-system workflows.
Functional integration testing
We test interactions between APIs, services, application modules, and third-party systems to verify requests, responses, business rules, and end-to-end workflows.
Data integration testing
We validate data mappings, formats, transformations, field values, and consistency as information moves between source and target systems.
Automated integration testing
We automate repeatable API and cross-system workflows and integrate them into CI/CD pipelines to detect integration failures after code or configuration changes.
Abbott Laboratories is a global healthcare giant
90%
Test coverage
1.6k+
Test cases created
X18
Faster regression testing run
Compass is the first modern real estate platform
85%
Test coverage
2k+
Test cases created
2.5x
Faster regression testing run
Arklign is a dental practice platform
95%
Test coverage
5k+
Test cases created
3k+
Number of critical bugs logged
Tipalti is a payment automation platform
12
Years of cooperation
100%
Covered performance
2x
Faster regression testing time
Xola is a booking system for tours and attractions
90%
Test coverage
3.2k+
Automation test scripts created
1-2h
Time of regression
Experience the DeviQA difference
From initial consultation to full-scale QA implementation, we deliver results
DeviQA’s AI advantage
At DeviQA, we use AI to make testing smarter and simpler. Our ecosystem is built to deliver faster, smarter, and more cost-efficient results — so your team can do more in less time.
DeviQA AI ecosystem
AI-powered IDE assistant
Reduces test script writing time
QA companion
Provides suggestions for test optimization and addresses gaps
Automated code review
Flags unused variables, improper loops, and other common errors
AI for API testing in Postman
Streamlines API test case creation and response validation
Features
Test case creation
Code review
Exploratory planning
Log analysis
without AI
6 hrs
3 hrs
2 hrs
2 hrs
with DeviQA AI
4 hrs (33% saved)
2 hrs (33% saved)
45 min (60% saved)
1 hr (50% saved)
Our integration testing
strategies
DeviQA selects an integration testing strategy based on the system architecture, component dependencies, development sequence, and available test environments.
Big-bang integration testing
We connect all system components and test them together after the complete build is available. This approach validates end-to-end behavior but can make the source of integration failures harder to isolate.
Bottom-up integration
testing
We test lower-level modules, services, and data components first before progressively adding higher-level functionality. Test drivers simulate unavailable higher-level components when required.
Top-down integration
testing
We begin with high-level workflows and progressively integrate lower-level services and components. Stubs or mocks simulate dependencies that are not yet available.
Hybrid or sandwich integration testing
We combine top-down and bottom-up testing to validate high-level workflows and foundational components in parallel before connecting them at the intermediate layer.
Integration testing engagement models
DeviQA offers three engagement models for integration testing services: staff augmentation, a dedicated QA team, and project-based outsourcing.
Staff augmentation
Integration testing engineers join your existing team while you manage their tasks, priorities, tools, and technical decisions.
Advantages:
Add integration testing specialists without running a separate hiring process
Scale testing capacity as integration requirements change
Retain control over the testing scope, backlog, and delivery priorities
Best for:
Teams that need temporary integration testing capacity or expertise with specific APIs, services, or platforms.
Dedicated QA team
A stable QA team manages ongoing integration testing across your APIs, services, databases, and third-party systems.
Advantages:
Manage the team’s daily priorities and testing scope
Adjust the team structure as the number and complexity of integrations change
Maintain a consistent team familiar with your system architecture, dependencies, and release process
Best for:
Products with continuous development and long-term integration and regression testing requirements.
Project-based outsourcing
DeviQA takes ownership of a defined integration testing project from planning and environment setup through execution and reporting.
Advantages:
One team manages test planning, integration mapping, test data, execution, defect reporting, and final delivery
Minimize the day-to-day testing management required from your internal team
Work against an agreed scope, schedule, deliverables, and acceptance criteria
Best for:
Defined API releases, platform migrations, integration rollouts, or other projects with a fixed scope and deadline.
Book a call to prevent costly
integration failures
Why choose DeviQA for system integration testing 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 QA professionals 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 4000 QA engineers and experts.
DeviQA’s integration testing process
DeviQA follows a six-step integration testing process covering system analysis, integration mapping, test design, environment preparation, execution, defect management, and final reporting.
Analyze the system and integration scope
We review the system architecture, interface specifications, API contracts, dependencies, data mappings, and acceptance criteria to define the testing scope and priorities.
Design the integration testing strategy
We select the appropriate integration strategy and create positive, negative, boundary, error-handling, and end-to-end scenarios for critical integration points.
Prepare the integration test environment
We configure the required application builds, endpoints, databases, third-party services, credentials, mocks, stubs, and test data in an environment aligned with production.
Execute integration tests
We verify requests and responses, data exchange, authentication, transaction integrity, error handling, and workflows spanning multiple connected components.
Report, investigate, and retest defects
Each defect report includes the affected integration, severity, reproduction steps, request and response data, logs, and environment details. The team collaborates with developers and integration owners to investigate issues and retest fixes.
Report results and integration risks
The final report summarizes the tested integrations, passed and failed scenarios, coverage, open defects, remaining risks, and recommendations. These results support the client’s production release decision.
Book a call to uncover integration risks before they disrupt reliability and trust
Here’s what people are saying
about DeviQA
34 reviews
34 reviews
9 reviews
“It was so easy to integrate your people with us and we didn't have any problems.”
Janosch Greber
VP of engineering at RealTyme
“DeviQA has always brought us really high quality candidates for us to be able to seamlessly mesh into our team.”
Danny He
CEO and founder at Soapbox
“You guys have always been genuine, flexible and personable.”
Ryan Austin
CEO and founder at Cognota
“In fact, they have been a part of our success story, helping us grow from six workers 11 years ago to about 1200 workers now.”
Raanan Tauber
QA manager at Tipalti
“They can take my lack of knowledge and I can trust that they will be able to produce something of value.”
Ray Alde
Co-founder & cto at Arklign
“To me, that's above and beyond, I did not expect that to be so smooth and so easy.”
Mark Levine
Chief product officer at CYDEF
“They know what they're doing because the people that they send to us are quality people.”
Charles Chase
Chief technology officer at Returnmates
“There is also very good follow up on the engineers and the job they're doing.”
Olivier Mayot
Chief technology officer at SimpliField
Collaboration process overview
- 01
Initial contact. We start by understanding your testing needs and aligning them with your goals.
- 02
Assessment. Our experts analyze your current process and propose a tailored improvement plan.
- 03
PoC. Try a free proof of concept to see our capabilities in action.
- 04
Trial & evaluation. We conduct a trial phase and review the results together.
- 05
Contract & QA implementation. Once satisfied, we sign the contract and begin full-scale QA.
- 06
Flexible partnership. DeviQA offers scalable solutions to adapt to your business needs.
