Top Senior Java Engineer Jobs in Chicago, IL

Build and maintain cloud-ready, low-latency trade and positions services for TAPE 2.0. Design scalable distributed systems, integrate client APIs (Java, C++, Python), use distributed caching and Kubernetes, contribute frontend work in Angular, and support CI/CD, monitoring, and documentation.

Seeking a Sr. Java Developer with over 5 years experience in Ins Bridge development tools for Property & Casualty Insurance, skilled in Java, SQL, and XML.

Seeking a Sr. Java Developer with 5+ years in Ins Bridge tools and insurance domain. Responsibilities include system development and maintenance support for actuarial models.

Develop and support enterprise Java applications, REST APIs, and microservices for ACH payment processing on a corporate banking platform. Responsibilities include troubleshooting production and transaction issues, creating automated tests, monitoring application performance, improving reliability and scalability, collaborating in Agile teams, mentoring offshore developers and testers, and advancing observability and AI-assisted engineering practices.

The Senior Java Web Developer will design, develop, test, and implement web and API-based software solutions while collaborating with a team and managing multiple priorities.

The Senior Java Web Developer will design, develop, and implement web and API-based software solutions, ensuring quality and adherence to standards.

Design and develop web and API-based software solutions, manage multiple priorities, and ensure compliance with best practices. Requires strong collaboration and communication skills.

Responsible for the development, testing, and deployment of complex solutions, collaborating with multiple teams and overseeing technical strategies and architecture. Lead engineering efforts, mentor engineers, and improve engineering standards.

Develop low- and ultra-low-latency electronic trading systems using Core Java. Build performance-sensitive backend components involving market data, order books, trading logic, networking, and concurrency. Troubleshoot production performance and latency issues in Linux environments, with emphasis on trading workflows such as matching engines, exchange connectivity, order routing, and trading gateways.

Lead the development of an AI-powered AML platform, guiding a team in best practices, architecture, and delivering high-quality software solutions using Java and React.

Lead design, develop, test, deploy, and maintain enterprise Java applications. Perform code reviews, optimize performance, assist in architecture and planning, mentor developers, and collaborate with cross-functional teams to ensure timely delivery.

Design, develop, and maintain scalable backend services and APIs using Java, Spring Boot and Node.js. Contribute to architecture, implement cloud-native, containerized solutions on Kubernetes, apply observability, integrate systems, deliver AI-enabled features, mentor engineers, conduct code reviews and support production deployments within Agile teams.

The Senior Java Developer will design, develop, and implement custom software solutions in Agile teams, mentor juniors, and ensure product quality.

Architect, implement, and optimize live and on-demand streaming pipelines in Wowza. Design scalable transcoding and packaging workflows, debug performance issues, integrate native code via JNI, and serve as a streaming subject-matter expert across cross-functional projects.

Optimize and scale blockchain node performance, design and implement core system plugins, collaborate with cross-functional teams, conduct performance testing and debugging, and stay current on blockchain and distributed systems technologies to maintain reliable infrastructure.

Design, develop, and maintain scalable Java/Micronaut enterprise frameworks and cloud-native microservices on Azure. Build and deploy services to AKS, create CI/CD pipelines with Azure DevOps, implement batch/asynchronous workflows, integrate messaging systems, optimize databases, and ensure security, observability, and resilience.

As a Senior Software Engineer, you will build cloud solutions, define migration strategies, mentor junior engineers, and ensure architectural integrity while collaborating with peers.

As a Senior Developer, you will modernize COBOL systems to Java, enhancing functionality and performance while collaborating with stakeholders and ensuring coding standards are met.

Designs, implements, and runs Java Spring Boot microservices and REST APIs; leads design, CI/CD, TDD, performance tuning, security, and cross-product collaboration. Coaches teams and owns product KPIs and production support.

Join an agile team to design, develop, test, and deploy enterprise web applications. Build high-quality Java/J2EE solutions, maintain system docs, implement RESTful services, improve SDLC practices (TDD, CI/CD, static analysis), and collaborate with architects, developers, and stakeholders. Perl experience required.

Lead architecture and implementation of device provisioning and lifecycle management services on GCP. Own APIs, scale Postgres/AlloyDB databases, integrate AI/LLM workflows (Anthropic Claude) for automation, mentor engineers, improve pipelines and tooling, and ensure high-availability, fault-tolerant designs.

Lead design and delivery of scalable, resilient distributed systems. Act as technical authority across teams, mentor engineers, drive architecture and CI/CD best practices, troubleshoot production issues, optimize performance, and enhance observability while writing production-grade Java.

Design, implement, test, and maintain scalable Java/J2EE microservices using Spring technologies. Collaborate with architects, follow SDLC, perform unit/system testing, troubleshoot distributed cloud applications, and work in Agile teams to meet enterprise performance and security standards.

Maintain and enhance U.S. Bank's Customer Information System and Hogan platforms. Design, develop, test, and operate mainframe services/APIs, diagnose and resolve incidents, perform code reviews, ensure security/compliance, collaborate with business and cross-functional teams, mentor peers, and participate in Scrum-driven delivery.

Lead Software Engineer responsible for designing, developing, testing, and maintaining a distributed processing application using Python and Java. Collaborate with product owners, data coaches, analysts, DBAs, and Agile teams to meet backend/frontend requirements, implement cloud and big-data solutions (Spark/Hadoop), and ensure program standards and reliable delivery.