50 api test engineer jobs at 45 companies in Berwyn, IL
4w
Save
Mark Applied
Hide
4w
Software Engineer, API
Chicago, Illinois, United States
$108k-$110k/yrHybridFull Time
Supernova Technology: Provides cloud-based digital software for securities-based lending.
3+ YOEBachelor's in CS/Engineering, 3+ years software development with API design, experience with Java, Spring Boot, AWS, OAuth/JWT, REST, Git, CI/CD, and testing frameworks.
RESTful Services, OAuth, JWT, Java, Spring Boot, AWS, Git, CI/CD
The Aspen Group: Provides comprehensive business support for retail healthcare practices.
5+ YOEDesign, develop, and maintain automated tests; API/SQL testing; CI/CD; strong programming in Java/Python; experience with API testing and SQL Server.
ITility: Providing professional engineering, IT, and mission support to government agencies.
8+ YOE8+ years software testing experience with 5+ years automation using Java/Selenium; experience with API, performance, and security testing; AWS, CI/CD, Agile experience; US citizenship and ability to pass IT-II background check.
Hopkins or Atlanta or Chicago or Charlotte or Englewood or Brookfield or Irving
$120k-$141k/yrHybridFull Time
U.S. BankNYSE: USB: Provider of personal, business, and institutional financial services.
5+ YOEBachelor's degree or equivalent and 5+ years relevant experience. Experience with mainframe/Hogan development (COBOL, JCL, CICS), APIs, system design, testing, security, and cross-team collaboration; Scrum familiarity.
Senior Software Development Engineer in Test (SDET) (Remote)
Chicago, Illinois, United States
$120k/yrRemoteFull Time
HyattNYSE: H: Global hospitality providing luxury hotel and resort accommodations.
5+ YOEBachelor's in CS or equivalent, 5+ years in software or test automation, strong programming in Java/Kotlin/Python/TypeScript, experience with test automation for services/APIs in AWS, and CI/CD integration.
Technology, Software Development Engineer in Test (SDET), Vice President
Chicago or Miami or New York City or San Francisco
$110k-$140k/yrOnsiteFull Time
BTIG: Provides global institutional trading and investment banking services.
3+ YOE3+ years SDET experience, strong Playwright and TypeScript skills, CI/CD integration, API testing, AI-assisted tooling and agent architecture familiarity.
Software Development Engineer in Test (SDET) (Atlanta, GA, US)
Fort Mill or Austin or Atlanta or Chicago
$73k-$88k/yrHybridFull Time
CapgeminiEuronext Paris: CAP: Provides global IT consulting and digital transformation services.
7+ YOEBachelor's in CS/CE required; 7+ years as QA Engineer/SDET; hands-on Playwright experience required; proficiency in Python, TypeScript, Java/JavaScript or .NET; experience with UI/API automation, SQL, JIRA, Zephyr, and Confluence.
PDF SolutionsNASDAQ: PDFS: Data analytics and engineering solutions for semiconductor manufacturing.
6+ YOEBachelors in CS/Engineering, 6+ years QA automation experience with Selenium/Python/Java, API/backend testing, ML application validation, cloud-native/Docker/Kubernetes, CI/CD, and Agile experience.
Publicis GroupeEuronext Paris: PUB: Global communications, advertising, and digital transformation holding.
5+ YOEBachelor's in Computer Science (or equivalent), 5+ years QA/development experience, strong test automation and scripting, experience with Selenium/Cypress/Taiko, API testing (Swagger/Postman), Angular, AWS testing tools, Agile experience.
RedSail Technologies: Integrated pharmacy management software and health technology solutions.
5+ YOEBachelor's degree in Computer Science or equivalent, 5+ years software engineering experience (including 1 year at senior level), expertise in microservices, API and database design, unit/integration testing, JavaScript/Angular; C#/.NET, Postgres, Mongo, Kafka preferred.
JavaScript, Angular, C#, .NET, PostgresDB, Mongo DB, Kafka, Microsoft Teams
Tractian: Provides AI-driven industrial IoT solutions for predictive equipment maintenance.
4+ YOE4+ years HubSpot CRM management, HubSpot API/webhooks experience, building integrations and automated workflows, reporting and A/B testing, strong communication and data analysis skills.
Tempus AINASDAQ: TEM: Builds a data platform for AI-powered precision medicine diagnostics.
Proficient in Python, APIs/JSON, unit testing, and Git; able to build and operate log ingestion pipelines, integrate systems, and support detection engineering with curiosity about security operations.
Python, APIs, JSON, Poetry, Git, unit tests, CI, SIEM, SOAR, Claude Code, Cursor, Splunk, Google SecOps, Microsoft Sentinel, GCP, Azure, AWS, S3, GCS, Blob, Key Vault, Secret Manager, Secrets Manager, IAM, Terraform, Docker
JLLNYSE: JLL: Global commercial real estate and investment management services.
Strong Python and engineering skills, REST API experience, familiarity with document parsing libraries and Microsoft 365 integrations, Git workflows, hands-on LLM/AI engineering, and experience designing validation and testing frameworks. Must be authorized to work in the U.S.; no visa sponsorship.
Python, pytest, PyMuPDF, python-docx, openpyxl, pandas, Git, REST API, Microsoft 365, Microsoft Graph, Microsoft SharePoint, Microsoft OneDrive, LLM APIs, Model Context Protocol (MCP)
5+ YOE5+ years with Microsoft stack (.NET 6/7/8+, ASP.NET Core, Web API, EF Core), SQL Server, Azure services, CI/CD and Git; bachelor\u0002s degree or equivalent experience; strong API, security, testing, and mentoring skills.
.NET, .NET 6, .NET 7, .NET 8, ASP.NET Core, Web API, Entity Framework Core, ASP.NET MVC, Angular, React, TypeScript, JavaScript, SQL Server, Microsoft Azure, App Service, Functions, Azure SQL, Application Insights, CI/CD, Git, Azure DevOps, GitHub Actions
Ritchie Bros.NYSE: RBA: Conducts global auctions for heavy equipment and industrial assets.
5+ YOE5+ years .NET development in multi-team environment; .NET, ASP.NET, C#, MVC, Web API, SQL Server/MySQL; HTML5/CSS/JS; Agile; unit & automation testing; fault-tolerant, scalable software.
Columbus or Boston or Chicago or Austin or Los Angeles or United States or Canada or United Kingdom or Australia
$125k-$165k/yrHybridFull Time
Loop Returns: Software platform automating e-commerce returns and post-purchase experiences.
2+ YOE2+ years building web applications, backend services, or APIs. Experience using AI agents in engineering workflows, testing and CI/CD, and familiarity with PHP/Laravel, Vue.js, AWS Serverless, MySQL, or DynamoDB is a plus.