Top Tech Jobs & Startup Jobs in Chicago, IL

Lead architecture and development of scalable REST-based microservices using .NET 6+, ASP.NET and C#. Drive API design, documentation, CI/CD with Azure DevOps, Azure deployments, event-driven integrations, testing (xUnit/NUnit), and mentor engineers while ensuring performance, security (JWT/OAuth/SAML), and observability for large eCommerce systems.

Lead and review creative workstreams, oversee and create design deliverables (comps, style guides, branding, layouts), contribute to information architecture and content structures, set objectives and lead project delivery, and coordinate with offshore resources to ensure design implementation and technical handoff.

Design, develop, and maintain scalable Java backend services and RESTful APIs. Collaborate with frontend, product, and stakeholders; write clean, tested code; troubleshoot and resolve issues; participate in code reviews; and improve systems, particularly for large-scale distributed environments.

Short-term contract to migrate Kronos WFC custom reports to UKG Dimensions, developing custom reports using DataHub and reporting tools (Power BI or Dell Boomi), building data views, org sets/employee groups, HyperFinds, profile auto-assignments, and integrations dashboards.

Design, govern, and maintain hybrid cloud platform architecture and reference implementations. Lead cloud service selection, security-by-design, DevOps/GitOps, infra-as-code, container and Kubernetes platform implementations, monitoring, and architecture reviews. Partner with security and engineering teams to drive standards, blueprints, and operational practices.

Design and architect scalable, high-performance React/Next.js web applications; mentor engineers; implement testing (Jest), CI/CD, monitoring (ELK/Splunk); integrate third-party APIs/SDKs and CMS; collaborate with UX, DevOps, and QA to deliver reliable frontend systems.

Lead Angular frontend developer responsible for architecting scalable UI solutions and building complex web applications using Angular, TypeScript, HTML5, CSS3 and WebComponents. Implement CI/CD, containerized deployments, automated testing and TDD. Work with Git workflows, testing frameworks, and cross-browser compatibility on distributed agile teams. Banking domain and Java/Spring Boot REST integration experience preferred.

Lead Retail Application Modernization and GCP implementation programs: define scope, create project plans, allocate resources, manage risks, communicate with stakeholders, monitor progress, mentor teams, ensure compliance with standards, and deliver projects on time and on budget.

Design, develop, and deploy end-to-end machine learning models using statistical and ML algorithms. Prepare and enrich data, implement scalable PySpark/Databricks solutions, and collaborate with product and engineering to create personalized customer experiences and actionable insights.

Lead migration and modernization of a legacy Spring MVC app to Spring Boot 3.3/JDK17, migrate caching from WebSphere Extreme Scale to Redis, containerize on OpenShift, provide architectural guidance, drive cloud-native and microservices adoption, optimize performance, collaborate with OpenShift architect, and produce documentation and roadmaps for stakeholders.