19 java api testing jobs at 17 companies in Ontario, CA
1mo
Save
Mark Applied
Hide
Senior Java Engineer
Santa Monica, California, United States
$101k-$187k/yr OnsiteFull Time
5+ YOE5+ years backend engineering experience with Java and Spring/Spring Boot; experience building APIs, microservices, cloud/distributed systems, relational data, testing, CI/CD, and containerized deployments; mentoring ability.
Java, Spring, Spring Boot, REST, APIs, Microservices, CI/CD
2mo
Save
Mark Applied
Hide
Delivery Excellence - Tech Enablement - Senior Developer - Manager
New York or Tampa or Atlanta or Chicago or Washington or Dallas or Los Angeles or Miami or Boston or San Diego or San Francisco or Silicon Valley or Philadelphia or Seattle
$99k-$232k/yr OnsiteFull Time
4+ YOE2+ MgmtBachelor's degree; 4+ years in software engineering; strong Java, Python, C++, and JavaScript; experience leading teams; API management; CI/CD; ATDD a plus.
Java, Python, C++, JavaScript, APIs, CI/CD, Application frameworks, Software testing
1mo
Save
Mark Applied
Hide
Engineering Manager - Catalog
Irvine, California, United States
$140k-$145k/yr OnsiteFull Time
10+ YOE2+ Mgmt10+ years software engineering with 2+ years lead/manager experience; hands-on full-stack skills (C#/.NET, Go, Python, or Java; React; REST APIs; SQL); CI/CD, automated testing, AI-assisted development tooling; bachelor's degree required.
Langchain, C#/.NET, Go, Python, Java, React, REST APIs, Microsoft SQL Server, PostgreSQL, CI/CD, automated testing, Copilot, Claude Code, Cursor, MLOps
1mo
Save
Mark Applied
Hide
Software Development Engineer in Test Contractor (SDET Contractor)
Los Angeles or Aliso Viejo
$52-$78/hr OnsiteContract
3+ YOE3+ years in test automation or software quality engineering, strong Java and JUnit skills, API testing and OpenAPI/Swagger experience, CI/CD and Git familiarity, bachelor's degree or equivalent experience preferred.
Java, JUnit, gRPC, OpenAPI, Swagger, Git, Jenkins, GitHub Actions, Spring Boot, IntelliJ IDEA, Splunk, AWS, Python, Node.js, JavaScript, HTML, CSS
1mo
Save
Mark Applied
Hide
Senior SDET — Automation Quality & Test Engineering
Irvine or United States
$125k/yr RemoteFull Time
6+ YOE6+ years software engineering (4+ in test automation); strong coding in TypeScript, JavaScript, Python, Java, or C#; experience building API/UI test frameworks, CI/CD integration, testing multi-system integrations, and daily use of AI coding tools.
TypeScript, JavaScript, Python, Java, C#, Postman, REST-assured, pytest, supertest, Playwright, Cypress, GitHub Actions, GitLab CI, Jenkins, Azure DevOps, Blue Sage, Encompass, Kwikie, Gateless, Cotality, AUS, DU, LP, Claude Code, GitHub Copilot, Cursor
1mo
Save
Mark Applied
Hide
Senior Quality Automation Engineer
Irvine, California, United States
$93k-$131k/yr OnsiteFull Time
1+ YOEBachelor's in Computer Science (or related) plus 1 year experience; expertise in Java/Python/JavaScript, Selenium/TestNG/JUnit, Jenkins, API testing tools, Git, Jira, performance testing, and SQL.
Java, Python, JavaScript, Selenium, TestNG, JUnit, Jenkins, Postman, Rest Assured, SoapUI, Git, Jira, JMeter, LoadRunner, SQL
2mo
Save
Mark Applied
Hide
Lead QA Engineer
Los Angeles or Tustin or Dallas
$132k-$167k/yr HybridFull Time
5+ YOE2+ Mgmt5–8+ years software quality assurance, 2+ years in leadership; manual and automated testing; Selenium/Cypress/Playwright; API testing; CI/CD; Agile; Jira; programming in JavaScript/Python/Java.
Selenium, Cypress, Playwright, Postman, REST Assured, Jenkins, GitHub Actions, GitLab CI, Jira, JavaScript, Python, Java
1mo
Save
Mark Applied
Hide
Senior Associate, Tech Quality Assurance
Bengaluru or New York City or Toronto or Los Angeles or Austin or Denver or Kansas City or London
HybridFull Time
2+ YOE2+ years software QA for web platforms, experience with functional and automation testing, Playwright/Selenium, scripting in Python/Java/JavaScript/TypeScript, API testing (Postman), CI/CD and Agile experience; CMS testing (WordPress/Contentful) desirable.
Playwright, Selenium, Python, Java, JavaScript, TypeScript, Postman, WordPress, Contentful, Git, Azure DevOps, GitHub Actions, Jenkins
3w
Save
Mark Applied
Hide
Principal QA Engineer
Irvine, California, United States
$140k-$185k/yr HybridFull Time
5+ YOE5+ years QA automation experience; strong Python or Java with PyTest/TestNG, Playwright/Selenium; CI/CD with Jenkins/GitHub Actions; API and performance testing; ERP testing experience; bachelor’s degree preferred.
Python, Playwright, PyTest, Java, TestNG, Jenkins, GitHub Actions, QMetry, Postman, SoapUI, Apache JMeter, LoadRunning, JDE EnterpriseOne, SAP, Oracle, Oracle Fusion, Selenium
2mo
Save
Mark Applied
Hide
Full Stack Developer / AI Focused
Long Beach, California, United States
RemoteContract
3+ YOE3–6 years software engineering; proficient in Python/TypeScript/Java/Go/C#; strong design, databases, APIs, testing, cloud and DevOps; AI-enabled deployment focus.
Python, TypeScript, Java, Go, C#, PostgreSQL, MySQL, MongoDB, Redis, DynamoDB, pgvector, REST, GraphQL, gRPC, OpenAPI/Swagger, AWS, GCP, Azure, Docker, Kubernetes, Terraform, Git, Copilot, Cursor, Claude Code, Datadog, OpenTelemetry, Prometheus, Grafana, dbt, Airflow, Spark, Kafka, Jira, Linear
1mo
Save
Mark Applied
Hide
Senior Software Quality Assurance Engineer - Cloud Services
Irvine, California, United States
$135k-$170k/yr OnsiteFull Time
7+ YOEBachelor's in CS or related, 7+ years in software quality engineering for cloud/backend systems, REST API testing, Docker/Kubernetes, AWS, Kafka/MySQL/MongoDB/Redis familiarity, Python or Java automation experience, performance testing and strong communication.
Docker, Kubernetes, Kafka, MySQL, MongoDB, Redis, AWS, Python, Java, GitHub Copilot, CI/CD
3w
Save
Mark Applied
Hide
Senior Software Engineer (MCP Servers)
Irvine or Dallas
$129k-$160k/yr HybridFull Time
5+ YOE5+ years software development experience; proficiency in Python, JavaScript/Node.js, Java; experience with APIs, Apigee X, MCP servers, OAuth/JWT, OpenAPI, CI/CD; strong testing and mentoring skills.
MCP, Apigee X, Apigee, MCP Inspector, Python, JavaScript, Node.js, Java, gRPC, WebSocket, HTTP, OAuth, JSON Web Tokens (JWT), OpenAPI, Jenkins, Git, Maven, Google Authentication, CI/CD
4w
Save
Mark Applied
Hide
Senior Software Engineer
Glendale or Bristol
$149k-$199k/yr HybridFull Time
5+ YOE5+ years industry experience; proficiency in Java/Kotlin/Python/JavaScript; experience with microservices, REST APIs, AWS (S3, Lambda, EC2), SQL/MongoDB/OpenSearch, Apache Kafka, testing and code review.
Java, Kotlin, Python, JavaScript, AWS, S3, Lambda, EC2, SQL, MongoDB, OpenSearch, Apache Kafka
1mo
Save
Mark Applied
Hide
Senior Software Engineer
San Francisco or Miami or Atlanta or Salt Lake City or Phoenix or Washington D.C. or Los Angeles or Seattle or Chicago or Boston or Austin or New York City
$153k-$205k/yr RemoteFull Time
6+ YOE6+ years professional software development with Java and Go; bachelor’s in CS or equivalent; led small technical teams; experience with payment systems, RESTful APIs, cloud services, and SQL; strong system design, testing, and communication skills.
Java, Go, AWS, Google Cloud, Microsoft Azure, SQL, NoSQL, RESTful API
1mo
Save
Mark Applied
Hide
Senior SDET
Mexico or Santa Monica or Nairobi or Mexico City or Manila or Bangalore
RemoteFull Time
7+ YOE7+ years building test tools and frameworks using Groovy/Kotlin/Java/Scala, CI/CD (Jenkins), Linux/Mac OSX; experience with BDD frameworks (Spock, JBehave, Cucumber), REST APIs, Agile, version control, and AI-assisted development tools.
Groovy, Kotlin, Java, Scala, Jenkins, Linux, Mac OSX, Spock, JBehave, Cucumber, GitHub, GitLab, REST APIs, GitHub Copilot, Gemini, Claude
1w
Save
Mark Applied
Hide
Enterprise Software Engineer
Torrance, California, United States
$135k-$160k/yr OnsiteFull Time
Antares: Designing and manufacturing microreactors for defense and space missions.
3+ YOEBachelor's degree and 3+ years supporting supply chain/manufacturing or business/operations systems; experience with MES/ERP/MRP, SQL, Python, APIs, automation, AI-enabled workflows, and strong documentation/testing habits.
MES, ERP, MRP, PLM, QMS, Python, Java, C#, SQL, APIs, Git, RPA, Slack, Teams
1mo
Save
Mark Applied
Hide
Staff Software Engineer
Irvine, California, United States
OnsiteFull Time
7+ YOEBachelor's in CS/IS/engineering required (Master's preferred); 7+ years building large-scale healthcare software; 2-3 years running production on AWS; experience leading engineers; expertise in Go, Java, React/JavaScript, HL7/FHIR, RESTful APIs, cloud services and testing.
Go, Java, React, JavaScript, AWS, AWS Step Function, Airflow, HL7/FHIR, RESTful APIs
1mo
Save
Mark Applied
Hide
Product Engineer II - Cloud Infrastructure
Redlands, California, United States
$80k-$133k/yr OnsiteFull Time
2+ YOE2+ years experience with GIS technologies and software testing/development; cloud deployment (AWS/Azure/Google Cloud) experience; test plan and automation skills; REST API and scripting proficiency; Bachelor’s degree required.
ArcGIS Enterprise, ArcGIS Online, AWS, Azure, VMware, EC2, S3, SQS, Azure Virtual Machines, Storage, Kubernetes, Google Cloud, REST APIs, AWS CloudFormation, Azure Resource Manager (ARM), Helm charts, SQL Server, Oracle, PostgreSQL, DB2, Selenium, JMeter, ReadyAPI, Java, Python
1d
Save
Mark Applied
Hide
Lead Full Stack Android Engineer:
Durham or Austin or New York City or Los Angeles or San Francisco or London or Berlin or Singapore or Tel Aviv
HybridFull Time
5+ YOERequires 5+ years architecting and shipping production platforms, strong backend architecture, system design, algorithms, data modeling, API design, testing, and proficiency across multiple programming ecosystems.
TypeScript, JavaScript, Java, Kotlin, Python, Go, Scala, C++, React, MySQL, PostgreSQL, AWS, GCP, CI/CD
Explore Jobs
Expand Your Job Search
Top Cities Near Ontario for Java API Testing
- Java API Testing jobs in Los Angeles, CA
- Java API Testing jobs in Long Beach, CA
- Java API Testing jobs in Anaheim, CA
- Java API Testing jobs in Santa Ana, CA
- Java API Testing jobs in Riverside, CA
- Java API Testing jobs in Irvine, CA
- Java API Testing jobs in San Bernardino, CA
- Java API Testing jobs in Fontana, CA
- Java API Testing jobs in Moreno Valley, CA
- Java API Testing jobs in Huntington Beach, CA
- Java API Testing jobs in Glendale, CA
- Java API Testing jobs in Garden Grove, CA
- Java API Testing jobs in Rancho Cucamonga, CA
- Java API Testing jobs in Corona, CA
- Java API Testing jobs in Palmdale, CA
- Java API Testing jobs in Pomona, CA
- Java API Testing jobs in Torrance, CA
- Java API Testing jobs in Pasadena, CA
- Java API Testing jobs in Orange, CA
- Java API Testing jobs in Fullerton, CA