Top Java Developer Jobs in Chicago, IL

Lead backend software engineering initiatives and developers building scalable customer rewards redemption services. Drive architectural modernization toward microservices, collaborate with product, fraud, and customer experience teams, deliver cloud-based solutions, mentor engineers, evaluate code, and apply technologies including Go, Python, Java, SQL, Docker, Kubernetes, and AWS.

Build and maintain API and UI onboarding experiences for Adyen's platform, integrating with internal and third-party services. Design scalable solutions, create PoCs, enhance automation and compliance, and ensure secure handling of customer and legal entity data throughout the lifecycle.

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.

Leads full-stack software engineering for ATM technology products, designing and developing secure Java and Spring Boot applications, APIs, microservices, and React interfaces. Builds cloud-native solutions using AWS, Kubernetes, Kafka, and PostgreSQL; performs performance tuning, troubleshooting, and real-time data processing. Reviews code, improves automation and application resiliency, guides architectural evaluations, and promotes responsible AI-assisted engineering practices. Collaborates within Agile teams and leads technical communities of practice.

Leads a team of software engineers in designing, developing, testing, and operating secure, resilient Java microservices. Oversees architecture, implementation, technical troubleshooting, and design documentation for event-driven systems using Kafka, Spring Boot, and cloud infrastructure. Promotes automation, responsible AI-assisted development, secure coding, continuous delivery, operational stability, and adoption of emerging technologies. Provides technical leadership across agile teams and evaluates architectural solutions with vendors and internal stakeholders.

Join the US Bank Accounts team to design, build, and scale banking products. Own end-to-end projects, implement high-quality APIs and tooling, improve platform robustness, and collaborate across teams to deliver production services that handle large-scale distributed workloads.

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.

Lead development of an AI-first developer portal and AI-enabled support experiences, design secure external API platforms and integrations, establish engineering standards for AI/automation, remain hands-on with critical coding and architecture, drive cross-functional delivery, and coach/mentor engineering talent.

Design, develop, and maintain secure, high-quality Java/J2EE enterprise applications; produce architecture and design artifacts; use AI-assisted coding tools responsibly; participate across the SDLC and agile practices (CI/CD, resiliency, security); analyze data to drive improvements and contribute to engineering communities.

Lead technical design, build, and maintain secure, scalable software; drive adoption of AI-assisted engineering, automation, CI/CD, and cloud-native practices; mentor teams, evaluate vendors and SaaS, and translate business strategy into delivery roadmaps.

Lead and deliver high-quality, secure, scalable Java-based services (Spring Boot/WebFlux); manage two scrum teams, act as hands-on tech lead (50% coding), design systems, improve operational stability, drive automation/CI-CD, evaluate vendor architectures, and lead engineering communities of practice.

Lead and architect production-grade trading systems for Credit Pre-Trade Technology, build AI-native platforms, develop and maintain secure scalable code, partner with trading and product teams, drive AI-assisted engineering practices, support production stability and automation, and lead technical evaluations and communities of practice.

Lead and contribute to design, develop, test, and maintain secure, scalable Java-based enterprise applications. Drive architecture reviews, apply AI-assisted engineering practices, automate remediation, mentor teams, and promote reuse and operational stability across the SDLC.

Lead and mentor an agile engineering team to design, build, test, and operate secure, scalable Java microservice applications. Drive adoption and governance of AI-assisted engineering practices, review and deliver high-quality production code, influence product and technical decisions, and promote firmwide SDLC tools and standards.

Lead an agile team to design, develop, and maintain secure, scalable Java/Spring Boot microservices. Produce high-quality code, drive architecture/vendor evaluations, automate remediation, promote AI-assisted engineering practices, and ensure operational stability and secure SDLC adoption across teams.

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.

Lead an agile engineering team to design, build, and operate secure, scalable full-stack systems. Drive architecture for event-driven microservices, develop Java Spring Boot services and React/TypeScript SPAs, own testing and operational stability, promote AI-assisted engineering practices, and lead technical evaluations and communities of practice.

Lead a portfolio of backend engineering projects and a development team to design, build, and operate distributed microservices and cloud-native solutions (Java, Go, Python). Mentor engineers, collaborate with product managers, ensure regulatory-compliant systems, and occasionally code or evaluate implementations.

Senior Full Stack Engineer for Grainger's Home Page and Display Customizations team. Build and maintain reusable React components, design and evolve backend services, improve observability and reliability, modernize legacy systems, and contribute to micro-frontend architecture. Mentor junior engineers, lead team projects, and collaborate with stakeholders to deliver high-quality customer-facing features.

Design, build, and deploy scalable full-stack applications to replace legacy PIM workflows. Manage and review AI coding agent output, enforce guardrails, implement CI/CD and DevOps best practices, and mentor junior engineers while collaborating with architects and product managers.

Lead engineering on trading technology: design, develop, and maintain secure, scalable Java/Spring services and data pipelines. Drive adoption of cloud (AWS), CI/CD, AI/ML, analytics, automation, and best practices while mentoring and delivering complex market-facing systems.

Develop scalable Java and Spring Boot microservices for WEX’s digital credit application modernization. Build REST APIs, migrate Salesforce business logic into cloud-native services, implement modular adjudication integrations, synchronize PostgreSQL and Salesforce data through event-driven patterns, and contribute test-first development and CI/CD automation. The role requires debugging distributed systems, refactoring legacy code, and collaborating across teams.

Develop, test, deploy, and maintain enterprise Java applications using Spring and microservices. Conduct code reviews, optimize performance, support architecture and project planning, and collaborate across teams to deliver high-quality software. Mentor developers and promote consistent development practices. The role requires on-site work in Waukegan, Illinois and includes extensive full-stack Java development responsibilities.

Design, develop, and maintain backend services and APIs for an AI-native health platform. Lead technical designs, ensure engineering excellence, manage release cycles, collaborate across teams, drive operational excellence, and support production monitoring, incident triage, and deployment readiness.

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.