93 api test engineer jobs at 61 companies in Concord, MA
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Blockchain Lead Test Engineer
Tampa or Jersey City or Dallas or Boston or Coppell
$75k-$150k/yr HybridFull Time
5+ YOE5+ years in QA/quality engineering for enterprise software, experience testing blockchain and distributed-ledger platforms, strong manual and automated testing skills, test framework development, API and web app testing, CI/CD experience.
Playwright, Selenium, Cypress, Postman, Hyperledger Besu, CI/CD, REST
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Software Test Engineer
Cambridge, Massachusetts, United States
$115k-$182k/yr HybridFull Time
4+ YOE4+ years testing real-time distributed client-server applications; experience with C#/.NET, Visual Studio, Azure DevOps, GitHub, Microsoft Windows, API/web/mobile testing, networking tools (Wireshark, TCP/IP, DNS, DHCP), BDD/Gherkin, SAFe; Bachelor’s required, Master’s preferred.
C#, .NET, Microsoft Visual Studio, Microsoft Azure DevOps Service, Microsoft GitHub, Microsoft Windows, Gherkin, BDD, Wireshark, TCP/IP, WLAN, DNS, DHCP, API
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Robotics Automation Software Test Engineer
Boston, Massachusetts, United States
$125k-$175k/yr RemoteFull Time
3+ YOEBachelor's degree and 3+ years in software quality assurance, test automation, or systems validation; distributed systems, API and integration testing, troubleshooting, and Java or Kotlin proficiency required.
Java, Kotlin, Flutter, Dart, API, CI/CD, Autonomous Mobile Robots (AMRs), Warehouse Management Systems (WMS), Warehouse Execution Systems (WES), PLC, Barcode scanners, Label printers, Conveyor systems, digital twins, Third-party APIs
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Software Engineer in Test
Smithfield, Rhode Island, United States
$69k-$153k/yr OnsiteFull Time
6+ YOE6+ years QA test automation engineering experience building API and UI automation using Karate/RestAssured and Playwright/Cypress; strong Java/JavaScript/TypeScript skills; CI/CD and SQL experience.
Karate, RestAssured, Playwright, Cypress, Java, JavaScript, TypeScript, Jenkins, GitHub Actions, Azure DevOps, SQL, AWS Lambda, S3, CloudWatch, API Gateway, JMeter, Gatling, Docker, Kubernetes
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Principal Software Development Engineer in Test
Mansfield, Massachusetts, United States
$152k-$190k/yr RemoteFull Time
8+ YOE8–15 years SDET/automation engineering experience; strong Playwright with C#/.NET; API and database testing; CI/CD and Docker experience; leadership and mentoring.
Playwright, C#/.NET, REST API, SQL, Docker, AWS, CI/CD, Git, Bitbucket, Jira, Confluence
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Software Development Engineer in Test (SDET), AVP (Wealth Custody & Clearing)
Boston or Princeton or Clifton or Austin
$90k-$158k/yr OnsiteFull Time
7+ YOE7+ years in software quality engineering, SDET, or test automation; experience designing automated testing for complex enterprise or regulated systems; proficiency with automation frameworks, APIs, microservices, CI/CD, and test development languages.
Selenium, Cypress, Playwright, Java, JavaScript, CI/CD
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Senior Test Manager (Performance Testing, Salesforce & Integrations)
Acton or San Diego
$154k-$231k/yr HybridFull Time
10+ YOE10+ years in software testing and quality engineering with enterprise performance testing leadership; deep Salesforce and MuleSoft integration testing experience; hands-on JMeter, K6, LoadRunner, API testing, CI/CD integration, observability and telemetry analysis; strong communication and people leadership.
Salesforce, MuleSoft, JMeter, K6, LoadRunner, Karate, Postman, RestAssured, Playwright, Jenkins, Copado, Azure DevOps, Dynatrace, Splunk, Datadog, Grafana, AppDynamics
5d
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Senior Software Engineer
Merrimack, New Hampshire, United States
OnsiteFull Time
8+ YOEBachelor’s degree and 8+ years of software development experience, including 5+ years with .NET and Angular. Requires AI-assisted development, full-stack engineering, cloud, APIs, testing, and Agile experience.
.NET Core, C#, ASP.NET MVC, Web API, NHibernate, Oracle, Angular, HTML5, CSS3, TypeScript, OAuth, JWT, AWS, LLM, NLP, Git, xUnit, NUnit, Jasmine, Docker, Kubernetes, GitHub Copilot, Cursor, Claude Code
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Senior Software Engineer (Fullstack), Digital Storefront
Boston or New York City or United States
$125k-$254k/yr HybridFull Time
5+ YOE5+ years fullstack web development; frontend React/Angular and CSS frameworks; backend Java/Kotlin or NodeJS; AWS, Docker, Git; Figma and testable code; API design and testing experience.
React, Angular, Tailwind, Bootstrap, Java, Kotlin, NodeJS, AWS, Docker, Git, Figma
5d
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Senior Python Developer
Montreal or India or Boston or Brossard
HybridFull Time
5+ YOESenior Python engineering experience required, with Python, FastAPI, Pydantic, AWS, cloud-native systems, databases, APIs, automated testing, CI/CD, and Generative AI or agentic framework experience.
Python, FastAPI, Pydantic, AWS, PostgreSQL, NoSQL, CI/CD, Generative AI, API, microservices
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Principal Software Engineer
Wilmington, Massachusetts, United States
$144k-$216k/yr OnsiteFull Time
8+ YOE3+ MgmtBachelor's degree or equivalent,8+ years quality engineering experience,3+ years technical leadership,proficiency in test automation,CI/CD,API testing,Agile.
Java, Python, C#, JavaScript, Selenium, Cypress, Playwright, Appium, RestAssured, MS Copilot, Jenkins, GitHub Actions, Azure DevOps, JMeter, Gatling, k6, Docker, Kubernetes, AWS, Azure
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Senior Full Stack Developer
Nashua or New Hampshire
$97k-$165k/yr HybridFull Time
4+ YOEBachelor's degree in CS or equivalent experience, 4+ years professional software development, full-stack web app delivery, API integration, frontend framework proficiency, SQL schema and query design, Git, and automated testing.
ASP.NET Core, Blazor, MudBlazor, C#, SQL Server, Dapper, FluentValidation, Git, HTML, CSS, JavaScript, TypeScript, CI/CD, Active Directory
3w
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Principal Software Engineer/Developer
Smithfield, Rhode Island, United States
$132k-$166k/yr OnsiteFull Time
3+ YOEBachelor's degree plus 5 years or master's degree plus 3 years in software engineering, API testing, and automation scripting within financial services; expertise with automation, DevOps, databases, and CI.
Selenium WebDriver, Selenium Grid, TestNG, Java, JavaScript, JUnit, Cucumber BDD, Rest Assured, Karate, Playwright, MongoDB, PostgreSQL, Jenkins, Git, Jira, Qtest, Data Dog, Maven, JMeter, Appium, Redis, Kafka, Eclipse, IntelliJ IDEA
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Principal Quality Engineer
Boston, Massachusetts, United States
$120k-$140k/yr HybridFull Time
10+ YOE10+ years in test automation/software engineering with 5+ years in principal/lead roles; hands-on TypeScript, Playwright, Cucumber, CI/CD, cloud-native testing, performance and API testing, and strong communication and leadership skills.
TypeScript, Playwright, Cucumber, CI/CD pipelines, GitHub Actions, Jenkins, Azure DevOps, Artificial Intelligence (AI), SAFe
2mo
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Software Engineer, Agentic AI
Somerville or Germany or Hungary or Singapore or Israel
$100k-$150k/yr HybridFull Time
3+ YOE3+ years software engineering experience; strong TypeScript proficiency; experience integrating LLM APIs (Anthropic, OpenAI); familiarity with agentic patterns, RESTful API design, and testing/debugging practices.
TypeScript, ReactJS, LLM APIs, Anthropic, OpenAI, RESTful
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Software Engineer: Web Developer
Cambridge, Massachusetts, United States
$110k/yr OnsiteFull Time
Bachelor's degree in CS or related; strong HTML, CSS, JavaScript; experience with Vue, React or Angular; CMS knowledge (WordPress/Joomla); UI/UX and graphic design skills; REST API development; Agile and test-driven practices.
HTML, CSS, JavaScript, Vue, React, Angular, WordPress, Joomla, REST API, CI/CD, git, GitHub, GitLab, Jenkins
3d
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Strong Junior QA Manual Engineer
Romania or Boston
RemoteFull Time
1.5+ YOERequires 1.5+ years in QA or software engineering, manual web and mobile testing, QA methodology knowledge, REST API and browser DevTools experience, and upper-intermediate English. SQL and AI familiarity are preferred.
REST API, DevTools, Postman, SQL, LLMs, RAG, RBAC
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Senior Software Developer - Integration
Boston, Massachusetts, United States
$78k-$133k/yr OnsiteFull Time
4+ YOEBachelor's in CS/Software Engineering or equivalent,4+ years software development with focus on system integration,API and integration design,knowledge of REST,JSON,XML,HL7/FHIR,testing and troubleshooting distributed systems.
APIs, REST, JSON, XML, HL7/FHIR
2w
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Frontend Engineer
Boston or Jersey City or New York
$85k-$135k/yr OnsiteFull Time
4+ YOERequires 4+ years of frontend engineering, deep Angular and strong TypeScript skills, Python API experience, Figma fluency, testing expertise, reactive state management, and daily AI coding assistant use.
Angular, TypeScript, RxJS, Angular CDK, Python, FastAPI, Figma, Jasmine, Jest, Cypress, Playwright, NgRx, Akita, WebSocket, SSE, D3.js, Chart.js, ngx-charts, CodeMirror, Monaco, Angular Material, Kendo UI, Module Federation, Nx, Storybook, CI, Figma Dev Mode
1w
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SDET Automation Engineer (Hammer & Cyara)
Hartford or Wellesley
$55k-$96k/yr OnsiteFull Time
5+ YOERequires 5+ years software engineering experience, 3+ years in SDET/test automation, Java or Node.js, API testing, automation frameworks, CI/CD, conversational AI testing, and full-stack testing.
Java, Node.js, JUnit, Jest, SoapUI, Postman, Bruno, Playwright, Selenium, Cucumber, Hammer, Cyara, GitHub Actions, REST, Object-Oriented Design (OOD), LLM-as-a-Judge
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