2,607 api test engineer jobs at 1,214 companies in United States
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API Engineer
Boulder, Colorado, United States
$80k-$110k/yr HybridFull Time
1+ YOEExperience building and maintaining APIs, data schemas/versioning, testing and CI/CD; proficiency with Git, Linux, and modern programming languages; Master's or Bachelor's plus 1-2 years API/pipeline experience.
Python, REST, JSON, OpenAPI, JSON Schema, Git, Linux, Docker, Terraform, CloudFormation, GitHub Actions, GeoJSON, GeoParquet, R, Shiny, Rust, AWS
1w
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Java API Engineer
Irving, Texas, United States
$90k-$110k/yr OnsiteFull Time
8+ YOERequires 8+ years of experience with Java, Spring Boot, microservices, REST APIs, cloud platforms, messaging, databases, web development, testing, security, Docker, Kubernetes, and CI/CD.
Java, Spring Boot, REST API, AWS, Microsoft Azure, Google Cloud, Apache Kafka, AMQP, RabbitMQ, ActiveMQ, DB2, PostgreSQL, HTML5, React.js, CSS, Node.js, webpack, Jest, Selenium, Cucumber, Apigee, TLS, mTLS, OAuth 2.0, Docker, Kubernetes, Jenkins, Fortify, SonarQube, Black Duck
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Senior API Developer
Tacoma, Washington, United States
$100k-$160k/yr OnsiteFull Time
7+ YOE7+ years API development experience, strong API design and security knowledge, proficiency with Java/Python/JavaScript and frameworks, CI/CD and testing experience, DoD clearance preferred.
Java, Python, JavaScript, Spring, Flask, Node.js, OAuth 2.0, JWT
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API QA / 508 / Test Engineer
United States
RemoteFull Time
5+ YOETop Secret clearance, bachelor\u0002s degree, 5+ years QA/API testing experience, accessibility (Section 508/WCAG) expertise, experience with Postman/SoapUI/ReadyAPI, JSON/OpenAPI, OAuth2/JWT/SAML, and CI/CD integration.
Postman, SoapUI, ReadyAPI, OpenAPI, Swagger, OAuth2, JWT, SAML
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Senior API Security Engineer
Atlanta or Charlotte or Raleigh
OnsiteFull Time
7+ YOEBachelor's or equivalent, 7+ years security engineering experience, deep API security and penetration testing knowledge, familiarity with OAuth2/OIDC/mTLS/JWT, Python and cloud platforms, and experience with API security tools.
Akamai, Salt Security, ReadyAPI, Traceable, Data Theorem, OWASP ZAP, SoapUI, Burp Suite, Python, AWS, Microsoft Azure, OAuth 2.0, OpenID Connect (OIDC), mTLS, JSON Web Tokens (JWT)
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Test Engineer
Bucharest or Leawood
OnsiteFull Time
5+ YOE5+ years in quality engineering or software testing, test design and execution, automated UI/API testing, SQL and API validation, experience with AI-assisted testing and responsible AI principles.
SQL, REST, SOAP, Playwright
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Test Engineer 3
Annapolis Junction or Maryland or Virginia or Colorado or Texas or Utah or Alaska or Hawaii
$63-$112/hr OnsiteFull Time
8+ YOETS/SCI required,8+ years test engineering experience, bachelor's in related field (or equivalent), strong Linux/Bash, Python/Pytest, Docker/Podman, Jenkins/GitLab, REST API and UI automation skills.
Linux, Bash, Python, Pytest, Docker, Podman, Jenkins, GitLab, Robot Framework, Selenium, SQL Developer, Microsoft Playwright
2w
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Automation Test Engineer
San Diego, California, United States
$105k-$200k/yr OnsiteFull Time
1+ YOERequires a bachelor's degree in electrical engineering, computer engineering, physics, or equivalent and 1–8 years' experience, with programming, embedded Linux, RF testing, networking, and automated test development skills.
VB.NET, C#, Python, C, C++, Linux, Windows, Microsoft .NET, Raspberry Pi, FDMA, TDMA, OSI, API, PC, printer, telephone, spectrum analyzers, oscilloscopes, signal generators, radio emulators, network analyzers, RF switch matrixes, multimeters
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Test Engineer AVP
Whippany, New Jersey, United States
$190k-$195k/yr OnsiteFull Time
Design and execute automated test strategies for web, API, middleware and infra migrations using automation frameworks; strong knowledge of authentication, security, monitoring, and CI/CD integration.
Selenium, Playwright, Rest Assured, Java, Maven, Node.js, Kibana, Splunk, TeaLeaf, AppDynamics, Groovy, Jenkins, Chef, Docker, TWS, AMQ, Kafka, Ab Initio, TSYS, Oracle 19c, Tomcat, AEM
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Performance Test Engineer
United States
RemoteFull Time
3+ YOE3+ years in performance testing or related roles; experience designing and executing load/stress tests, analyzing metrics, and integrating tests into CI/CD; familiarity with web architectures and REST APIs.
JMeter, LoadRunner, k6, Gatling, REST APIs
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Software Test Engineer
United States or Chesapeake
$75k-$158k/yr HybridFull Time
5+ YOEU.S. citizen with Secret clearance (or ability to obtain),5+ years software testing experience, automated testing, API and DB/SQL testing, scripting (Python/JavaScript), Jira/Bugzilla, Agile experience.
AWS, Playwright, mabl, testRigor, SQL, Python, JavaScript, Jira, Bugzilla, Docker, Kubernetes, Git, Bash, Jenkins, GitLab CI
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Test Engineer Level 3
Annapolis Junction, Maryland, United States
$185k-$200k/yr OnsiteFull Time
8+ YOEU.S. citizen with active TS/SCI+Poly required; 8+ years test engineering experience for HPC systems; Linux, Bash, Python, REST API, SQL/Splunk, CI/CD (GitLab CI); Bachelor's degree or substitution with additional experience.
Linux, Bash, Python, REST APIs, SQL, Splunk, Kibana, Grafana, GitLab CI, Jira, Confluence, Ansible, Git
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Software Test Engineer
United States or Chesapeake
$75k-$158k/yr RemoteFull Time
5+ YOEU.S. citizen with Secret clearance (or ability to obtain), 5+ years software testing experience, API/DB testing, automated testing tools, SQL, familiarity with at least one scripting language, Agile experience.
AWS, Playwright, mabl, testRigor, Python, JavaScript, Jira, Bugzilla, SQL, Docker, Kubernetes, Git, Bash, Jenkins, GitLab CI
2mo
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Test Lab Engineer
Shreveport, Louisiana, United States
OnsiteFull Time
Associate degree in engineering/industrial technology required; mechanical aptitude, familiarity with API/HI/ASME/ANSI standards, pneumatic/hydraulic and low-voltage circuitry knowledge, vibration analysis, test procedure development, and ability to lift 25 lbs.
1mo
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Senior Software Test Engineer
Henderson, Nevada, United States
$107k-$116k/yr OnsiteFull Time
5+ YOEBachelor's degree,5+ years software testing experience,lead test strategies,mentor junior engineers; proficiency with Docker,Python,TypeScript,React,AWS services,API testing,automated frameworks,CI/CD,network protocols and debugging tools.
Docker, Python, TypeScript, React, S3, DynamoDB, RDS, IOT/Core, Lambda, API Gateway, RESTful, Postman, PyTest, Playwright, Git, GitHub, CI/CD, MQTT, TCP/IP, VS Code, J1939, CANopen, RS-485
2w
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Test Engineer
Arlington, Virginia, United States
$100k-$115k/yr HybridFull Time
4+ YOEBachelor's degree in computer science or related field, 4+ years of test or QA engineering experience, active DoD Secret clearance, and experience with automated testing, APIs, web applications, CI/CD, and defect tracking.
Selenium, Cypress, Postman, Newman, JUnit, NUnit, Jest, Azure DevOps, Jira, GitHub Actions, Docker, Kubernetes, OpenTelemetry, App Insights, MuleSoft Anypoint Platform, .NET, Java, NestJS, MuleSoft, REST APIs, Microsoft Azure DevOps
3w
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Test Engineer
Stafford or Virginia
OnsiteContract
1+ YOERequires active Secret clearance, 1+ year automation testing experience, automated test development, manual and integration testing, web/API/database testing, and agile team experience.
Microsoft .NET, Selenium, Playwright, Appium, Robot, Cucumber, JMeter, K6, Loadrunner, SAFe, Scrum, XP, Kanban, Xray, TestRail, Angular, React, Blazor, Azure, AWS
3mo
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Software Test Engineer
Fort Lauderdale, Florida, United States
OnsiteFull Time
1+ YOEBS/MS in CS/CE or related field; 1+ years as Test Engineer; scripting in C/C++/C#/Dart; Jenkins; API testing; test management; Atlassian tools; GitHub; load/performance testing.
Jenkins, API testing, Test Management Software, JIRA, Confluence, Bitbucket, GitHub, Load testing, Performance testing, C, C++, C#, Dart
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Test Engineer
Rochester or Buffalo or Utica or DeWitt or Albany
$60k-$177k/yr OnsiteFull Time
0+ YOEAssociate degree in computer science, information technology, or related field, or 3 years related experience. Experience requirements vary by level from 0 to 10 years; testing, databases, APIs, and software development lifecycle knowledge required.
Databases, APIs, Windows, SDLC
3d
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Test Engineer (SDET)
United States or Chicago
$90k-$118k/yr HybridFull Time
3+ YOERequires 3–5 years in software test automation, systems validation, or backend engineering; TypeScript, automated testing, API and end-to-end testing, distributed-system debugging, Datadog, and mentoring experience.
TypeScript, Playwright, Cursor, GitHub Copilot, Codex, Claude Code, Datadog, Confluence, PostgreSQL, RabbitMQ, Neo4j, Redis, GitLab Ultimate, SonarQube, Wiz, LinkedIn Learning
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