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Contract Testing Jobs in Massachusetts (NOW HIRING)

MuleSoft QA Engineer

Wilmington, MA · Hybrid

$94K - $125K/yr

Contract testing frameworks such as Pact, Dredd, Schemathesis * Conduct load and performance testing using Apache JMeter to assess scalability of MuleSoft integrations. * Perform security and ...

MuleSoft QA Engineer

Wilmington, MA · Hybrid

$94K - $125K/yr

Contract testing frameworks such as Pact, Dredd, Schemathesis * Conduct load and performance testing using Apache JMeter to assess scalability of MuleSoft integrations. * Perform security and ...

Set the standard - Define and enforce best practices for data modeling, CI/CD, testing, and code quality across the data engineering function, including the contract-testing and schema-evolution ...

Set the standard - Define and enforce best practices for data modeling, CI/CD, testing, and code quality across the data engineering function, including the contract-testing and schema-evolution ...

Stability Coordinator

Lexington, MA

$22.25 - $30.50/hr

Collaborate with contract laboratories to ensure timely completion of testing and delivery of QC deliverables for stability programs * Review and approve laboratory data and results, ensuring their ...

Prepare paperwork for and submit samples to contract testing laboratories and off-site storage partners. * Work with shipping department to record the receipt and shipment of all study samples.

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Showing results 1-20

Contract Testing information

What is the difference between Contract Testing vs Software Tester?

AspectContract TestingSoftware Tester
Primary FocusVerifies interactions between services or components based on predefined contractsEnsures overall software quality through manual or automated testing of functionalities
Skills & CertificationsKnowledge of API testing, contract frameworks, possibly some automation toolsTesting methodologies, scripting, automation, certifications like ISTQB
Work EnvironmentOften in Agile teams, working closely with developers and QACan vary from manual testing to automation, in various development environments

Contract Testing specializes in validating interactions between services based on contracts, while Software Testers focus on overall software quality through various testing methods. Both roles require testing skills but differ in scope and focus.

What are some common challenges faced by professionals working in contract testing, and how can they be addressed?

Professionals in contract testing often encounter challenges such as ensuring clear communication between frontend and backend teams, maintaining up-to-date test suites when APIs evolve, and managing test flakiness due to changes in dependencies. Addressing these challenges typically involves regular collaboration with development teams, implementing automation for contract verification, and using robust mocking tools. Being proactive in reviewing contract changes and participating in cross-functional meetings can greatly enhance the reliability and efficiency of contract testing processes.

What is contract testing?

Contract testing is a software testing approach used to ensure that different services or components in a system interact correctly according to a set of agreed-upon rules, known as contracts. It is especially useful in microservices architectures, where independent services must communicate reliably. By verifying that the provider and consumer of an API adhere to the same contract, contract testing helps prevent integration issues and reduces the risk of breaking changes during development.

What are the key skills and qualifications needed to thrive as a contract tester?

To thrive as a Contract Tester, you need a solid understanding of software testing principles, API interactions, and experience with contract testing frameworks like Pact or Postman, often supported by a background in computer science or QA. Familiarity with version control systems such as Git, CI/CD pipelines, and relevant certifications like ISTQB can be highly beneficial. Strong analytical thinking, attention to detail, and effective communication are crucial soft skills for collaborating with development teams and stakeholders. These skills are essential to ensure seamless integration between services, reduce bugs, and deliver reliable software systems.
What are the most commonly searched types of Testing jobs in Massachusetts? The most popular types of Testing jobs in Massachusetts are:
Infographic showing various Contract Testing job openings in Massachusetts as of August 2026, with employment types broken down into 1% As Needed, 84% Full Time, 10% Part Time, 4% Contract, and 1% Nights. Highlights an 88% Physical, 3% Hybrid, and 9% Remote job distribution.

MuleSoft QA Engineer

Unifirst

Wilmington, MA • Hybrid

$94K - $125K/yr

Full-time

Medical, Life, Retirement, PTO

Re-posted 19 days ago


UniFirst rating

6.5

Company rating: 6.5 out of 10

Based on 133 frontline employees who took The Breakroom Quiz

146th of 251 rated facilities management


Job description

This is a hybrid role with 50% on-site requirement in Wilmington, MA.

We are seeking a dedicated MuleSoft QA Engineer to ensure the quality, performance, and security of enterprise integration solutions built on the MuleSoft Anypoint Platform. The ideal candidate will validate mUnit code coverage, create test cases from Functional Solution Documents (FSDs), and develop automated test suites covering end-to-end scenarios, contract testing, load testing, penetration testing, and security testing.

The role requires proficiency in modern API test automation tools, API contract testing frameworks (Pact, Dredd, Schemathesis), testing MuleSoft application with Azure Services, and integration with CI/CD pipelines for continuous quality validation. The candidate will also document QA processes in Confluence, log issues in JIRA, and work closely with developers, reporting managers, and project managers to identify risks, communicate challenges, and ensure timely resolution.

Responsibilities: 

Quality Assurance & Testing (80%)

  • Validate mUnit test suites to ensure high code coverage and compliance with enterprise quality standards for MuleSoft APIs, STL flows, and P2P integrations.
  • Review FSDs to design and develop comprehensive manual and automated test cases for APIs and ETL processes.
  • Write and maintain automated test scripts for end-to-end scenarios, API contract testing, and functional validation using:
     
    • Postman/Newman, SoapUI/ReadyAPI, RestAssured, Karate DSL, Cypress (API mode)
    • Contract testing frameworks such as Pact, Dredd, Schemathesis
  • Conduct load and performance testing using Apache JMeter to assess scalability of MuleSoft integrations.
  • Perform security and penetration testing for protocols like SFTP, TLS mutual authentication, and OAuth 2.0-based APIs.
  • Execute positive, negative, and edge case scenarios to validate error handling and robustness.
  • Integrate automated API test suites into CI/CD pipelines (Azure DevOps, Jenkins, GitHub Actions) for continuous regression testing.
  • Develop and maintain standardized QA frameworks and reusable testing utilities for MuleSoft projects.
  • Log and track defects in JIRA, including detailed reproduction steps and severity classification.
  • Maintain test plans, test cases, and execution reports in Confluence for audit readiness.
  • Test Azure-integrated flows involving APIM-managed APIs, Service Bus/Event Grid messaging, Blob Storage file operations, Azure Functions triggers, and data interactions with Azure SQL and Cosmos DB.

Collaboration & Reporting (20%)

  • Partner with QA Leads, developers, and project managers to identify and mitigate risks early in the delivery cycle.
  • Participate in Agile/Scrum ceremonies, providing quality status updates and highlighting key risks.
  • Use JIRA and Monday.com for task tracking, sprint planning, and defect resolution coordination.
  • Communicate testing outcomes effectively to technical and business stakeholders, ensuring alignment on release readiness.

The estimated salary for this position ranges from $94,636 to $125,929 yearly. Actual compensation will vary based on factors including but not limited to the candidate's skills, experience, and qualifications. Geographic differentials may also apply depending on the position's location. There is no application deadline for this role; recruitment will remain open until the position is filled. 

Requirements

  • Bachelor’s degree in computer science, Information Systems, or a related field (required).
  • 5 years in Quality Assurance, with 2 years focused on testing MuleSoft Anypoint Platform integrations.
  • Strong experience validating mUnit test suites and achieving high coverage.
  •  Expertise in automated API testing using Postman/Newman, SoapUI/ReadyAPI, RestAssured, Karate DSL, Cypress.
  • Experience with API contract testing tools like Pact, Dredd, Schemathesis.
  • Hands-on JMeter for performance and load testing.
  • Understanding of security testing for SFTP, TLS, and OAuth 2.0 APIs.
  • Proficient in testing positive, negative, and edge cases.
  • Experience integrating API tests into CI/CD pipelines (Azure DevOps, Jenkins, GitHub Actions).
  • Skilled in JIRA for defect management and Confluence for QA documentation.
  • Familiarity with Agile/Scrum delivery models.
  • Familiarity with Azure integration services: APIM, Service Bus, Event Grid, Blob Storage, Azure Functions, Azure SQL, Cosmos DB.
  • Strong analytical and problem-solving skills with a keen attention to detail.
  • Excellent communication skills for documenting issues and collaborating with cross-functional teams.
  • Ability to work independently and manage multiple priorities in a fast-paced environment.
  • Proactive approach to identifying risks and proposing solutions.

Benefits & Perks:

401K with Company Match, Profit Sharing, Health Insurance, Employee Assistance Program, Life Insurance, Paid Time Off, Tuition Reimbursement, 30% Employee Discount, Employee Referral Bonuses.

UniFirst is an international leader in garment & Uniform services industry. We currently employ over 14,000 team partners who serve 300,000 business customer locations throughout the U.S., Canada, and Europe.

We were included in the top 10 of Selling Power magazine’s “Best Companies to Sell For” list and recognized on Forbes magazine’s “Platinum 400 – Best Big Companies” list. As an 80-year old company focused on annual growth, there’s never been a better time to join our team. 

UniFirst is an equal opportunity employer. We do not discriminate in hiring or employment against any individual on the basis of race, color, gender, national origin, ancestry, religion, physical or mental disability, age, veteran status, sexual orientation, gender identity or expression, marital status, pregnancy, citizenship, or any other factor protected by anti-discrimination laws


What UniFirst employees say

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About UniFirst

Sourced by ZipRecruiter

The year was 1936 and Aldo Croatti had a vision: to serve the men and women who put in a hard day’s work. He founded a laundry business to clean clothes of factory workers and others in the heavy-soil business. With UniFirst, he created an entirely new concept: uniform rental services. This business concept gained popularity because it delivered on a key customer need: helping businesses work safer and smarter while presenting a better business image. Aldo’s vision spurred the growth of an entire industry. Since then, UniFirst has evolved into a leader in the uniform rental services industry. With headquarters located in Wilmington, MA, UniFirst operates 260-plus facilities throughout North and Central America and Europe. We serve over 300,000 customers and outfit over 2 million workers across a variety of industries—from automotive to transportation and warehousing, construction, and everything in between. We proudly serve nearly half of Fortune 500 companies and their hardworking employees.

Industry

Manufacturing

Company size

10,000+ Employees

Headquarters location

Wilmington, MA, US

Year founded

1936