Software Developer Jobs in Illinois, United States

Software Developer Research and Development Engineer at Penn State University’s Applied Research Laboratory (ARL) will design, develop, test, and deploy scalable software solutions for visualization and decision support. Responsibilities include leading complex projects from architecture to delivery, collaborating with data scientists to transition research code into production, conducting code reviews, mentoring junior developers, optimizing performance, maintaining codebases, ensuring security

Quality Engineering team at Options Clearing Corporation builds and maintains automation frameworks to ensure mission‑critical financial systems are stable and performant. The Associate Principal SDET designs automation strategies, creates test plans, develops code, and partners with developers and platform engineers throughout the software lifecycle.

Developer Experience team at Expedia Group builds tools, metrics, and enablement programs that reduce friction for engineers. As Principal Software Development Engineer, you will define and evolve the end‑to‑end strategy, metrics framework, and data model for Developer Productivity & Insights, turning telemetry into clear narratives for senior leadership.

Lead data‑driven initiatives to measure and improve developer productivity across Expedia Group. Design robust data pipelines, dashboards, and metrics frameworks, partner with platform and product teams to experiment with tooling changes, and translate insights into actionable recommendations for senior leadership.

Senior Associate, Software Engineering: Software Development Test (SDET) at The Options Clearing Corporation focuses on performance and parallel testing across cloud and on‑prem environments. The role requires designing test plans, building automated tools with Python and Java, and integrating testing into CI/CD pipelines.

The Director of Software Engineering – Software Development Test (SDET) leads enterprise‑wide test automation and quality engineering initiatives. This role designs and implements scalable automation frameworks across UI, API, microservices, data pipelines, and event‑driven systems, integrating AI/ML for test generation and insights.

Responsible for designing, developing, and maintaining automation frameworks, evaluating test cases, and creating tools to improve acceptance test efficiency. Collaborates with developers, PMs, and support to ensure quality standards and timely delivery.

What You'll Do We are looking for an individual to join the Renaissance Integration and Testing team as Principal, Software Engineering: Software Development Test (SDET), to lead the manual and automated integration testing at the program level. Primary Duties and Responsibilities: To perform this job successfully, an individual must be able to perform each primary duty satisfactorily.

Quality Engineering team at Options Clearing Corporation builds and maintains automated test frameworks for mission‑critical financial systems. The SDET designs UI and API automation, integrates tests into Jenkins pipelines, and drives quality metrics using tools like Selenium, Cucumber, Rest Assured and Claude Code.

Senior Associate, Software Engineering: Software Development Test (SDET) at OCC focuses on designing, developing, and maintaining automation frameworks to ensure high-quality software delivery. The role requires applying test design techniques, managing small projects, and collaborating with developers, PMs, and support teams.

NOTE: This position is based in Chicago, Illinois and is hybrid 3 days per week on site minimum. Only local candidates already based in the Chicagoland area will be considered for the role.

Lead SDET on the Renaissance Integration and Testing team at OCC, driving manual and automated integration testing at the program level. Develop and extend automation frameworks, write test plans, and analyze results to improve quality and performance.

CVS Digital Developer Experience builds the tools and services that enable tens of thousands of developers across CVS Health, covering source control, CI/CD, artifact repositories, dev environments, and AI‑powered coding assistance. The Senior Software Development Engineer leads automation of delivery pipelines, incident remediation, and platform reliability while mentoring engineers.

Software Developer at Uline, Inc. builds and maintains Java and Angular applications for logistics and shipping solutions. The role involves crafting, testing, and deploying code, conducting code reviews, optimizing performance, and mentoring peers in a microservices environment.

Software Developer to design, build, and maintain applications with the IT team at Crossway. Responsibilities include coding, testing, debugging, and supporting users in UNIX/Linux environments.

Technology Services team builds AI‑driven collaboration and automation platforms for the firm. The Software Developer designs, develops and deploys enterprise‑grade AI applications on Azure using C#/.NET, Azure Functions, Service Bus and AI Foundry, delivering intelligent workflow solutions.

CVS Health’s Digital Health team builds scalable backend services that enable seamless exchange of clinical data. As a Software Development Engineer, you’ll design and maintain Kotlin/Java microservices that integrate with Epic EMR and FHIR/HL7 standards, ensuring accurate, real‑time data for value‑based care.

Uline IT team builds and supports custom systems that run the company's warehouse and e‑commerce operations. The Software Development Manager leads a high‑performing team of 3‑5 developers, provides technical guidance, and partners with Agile product teams to design scalable, resilient applications.

Uline, Inc. seeks a Senior Software Developer in Waukegan, IL to craft, test, and deploy robust Java applications aligned with business needs using industry-leading technologies and coding standards. Utilize REST web services, microservice environments, Git, JPA, SQL, JSON, SOAP, XML, and code versioning tools.

Clearwater Analytics seeks a Software Development Engineer to build high‑performance, distributed FinTech solutions across Front Office, OEMS, PMS, and Asset Management domains. The role requires 7+ years of software development experience, strong coding and design skills, and deep expertise in cloud platforms (AWS, GCP, Azure) and distributed architecture.