Top Senior Java Engineer Jobs in Chicago, IL

Lead and mentor a team building cloud-native, low-latency microservices and full-stack systems using Java/Go/AWS/Angular. Drive technical modernization, collaborate with product managers, ensure regulatory compliance, and occasionally code or evaluate implementations.

As a Senior Software Engineer, you'll design and lead the card payments platform, mentor team members, and drive technical projects, ensuring scalable solutions for the airline industry.

As a Senior Software Engineer on the Bank Payments team, you will lead technical projects, mentor engineers, and develop scalable Java-based web services while driving innovation in North America's core banking payment systems.

Lead development of Java/J2EE applications using Spring, Hibernate, Web Services, and WebSphere. Work with PL/SQL, Adobe Flex, unit testing, basic Unix, and follow SDLC processes.

Lead design, development, maintenance, and 24/7 support of Java-based web applications on WebSphere. Collaborate with analysts and architects, write DB2 stored procedures, conduct code reviews, create automated tests, troubleshoot production issues, and guide development iterations.

Design, develop, and integrate web applications using Java and related frameworks. Create UI, database architecture, technical specs, and code components. Coordinate with analysts and architects, conduct code reviews, troubleshoot across environments, and support agile development lifecycle.

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.

Lead a team of developers to deliver cloud-based solutions, solve complex business problems, and mentor junior engineers while staying current with technology trends.

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.

Design, develop, and maintain Java applications using Spring/Hibernate. Build RESTful services, unit/integration tests, and work with messaging systems (JMS/Kafka/Pulsar/RabbitMQ). Troubleshoot production with Splunk/AppDynamics, use Maven/Git and IDEs (Eclipse/IntelliJ), and collaborate with teammates.

Lead full-stack engineering team to design, architect, deploy, and support cloud-native microservices and user experiences. Drive use of emerging Generative AI (LLMs, RAG, vector DBs), mentor engineers, collaborate with product, and deliver scalable AWS-based solutions.

Lead and architect full-stack cloud services and user experiences for credit card acquisition, mentor engineers, own deployments, and apply emerging AI/LLM technologies to drive product and engineering improvements.

Join a small team to design and deliver high-quality, low-maintenance Java applications. Coach client teams on modern development practices, apply test-driven development, and pursue ongoing professional growth through training and mentorship.

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.

As a Senior Lead Software Engineer, you'll lead multiple technology projects, collaborate on cloud-based solutions, and drive technical modernization in a financial setting.

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.

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.

Design, develop, and maintain backend services and APIs for a cloud-native health platform. Drive release coordination, production monitoring, issue triage, and cross-team collaboration. Contribute to technical designs, automation, DevOps practices, and help move features from prototype to production while ensuring engineering excellence and operational reliability.

Lead full-stack developer designing, building, testing, and supporting Java/JavaScript/AngularJS web applications. Responsible for architecture, UI/UX, RESTful integrations, database design, internationalization, mentoring junior developers, code reviews, and improving legacy systems within enterprise, cross-functional projects.

Senior Java Developer on an agile team to design, develop, test, and deploy enterprise-grade Java/J2EE web applications. Ensure performance, security, scalability, maintain documentation, review requirements, propose solutions, and improve SDLC through TDD, CI/CD automation, code reviews, and collaboration with architects and stakeholders.

Design, develop, and maintain high-performance Java microservices using Spring Boot. Implement threading/concurrency, fault-tolerance (Hystrix/circuit breakers), observability (SLI/SLO), and event-driven solutions with Kafka. Deploy and operate services on Kubernetes and AWS, mentor junior developers, and collaborate with cross-functional teams to deliver reliable, scalable features.

Lead modernization and migration of legacy Struts 1 applications to modern Java platforms. Design, develop, and maintain scalable Java 21 applications using Spring 6 and REST APIs, troubleshoot production issues, participate in code reviews, and collaborate with cross-functional teams to deliver high-quality software.

Lead reverse-engineering of TIBCO BW/MFT processes, document business rules, and reimplement them as modular Java/Spring Boot microservices. Migrate protocols to Kafka/RabbitMQ/REST, ensure data consistency, and perform performance testing to match legacy SLAs.