Top Java Developer Jobs in Chicago, IL

Design, develop, deploy, and optimize high-volume Java backend applications for financial transactions and pricing. Build scalable microservices, transactional databases, APIs, messaging systems, and secure AWS deployment pipelines. Improve performance, reliability, and zero-downtime operations while supporting financial security standards. Collaborate across teams, lead code reviews, mentor engineers, and contribute to migrating monoliths to distributed architectures.

Build software, data pipelines, dashboards, and automation for cloud cost visibility, infrastructure efficiency, reliability, engineering productivity, and financial accountability. Analyze workloads and billing data, implement AI- and analytics-enabled forecasting and anomaly detection, develop cloud-native services, and support capacity planning, cost allocation, and optimization. Collaborate with Engineering, Finance, Data, Platform, SRE, Architecture, and Product teams while testing, troubleshooting, documenting, and communicating recommendations and business value.

Leads and develops software engineering teams while remaining hands-on with Java and Spring Boot development. Responsibilities include setting architecture and technical roadmaps, delivering scalable enterprise applications, guiding Agile planning, improving CI/CD and DevOps practices, supporting production reliability, mentoring talent, and partnering with product and business stakeholders. The role manages hiring, performance, succession planning, and engineering excellence initiatives.

Designs, develops, and deploys enterprise applications using Java, Spring Boot, microservices, REST APIs, cloud services, databases, DevOps tools, and Angular or React. The role also involves AI exposure with Python, LangChain, and LangGraph, along with application security, monitoring, performance, deployment, and collaboration with project teams. The position is onsite in McLean, Virginia.

Leads the design, development, testing, deployment, and support of Java enterprise applications and scalable AWS cloud solutions. Develops RESTful APIs and microservices, contributes to architecture and solution design, troubleshoots complex issues, and drives software quality, CI/CD, testing, and production deployments. Provides technical leadership and mentorship to distributed engineering teams while collaborating with stakeholders, product teams, and end users.

Investigates customer escalations, performs root-cause analysis across complex Java codebases, and delivers production-ready fixes. Uses AI-assisted tools for log analysis, defect diagnosis, code remediation, test generation, and validation. Communicates issue status, documents resolutions, maintains knowledge content, supports teammates, and contributes to product enhancements. The role includes periodic after-hours and weekend pager coverage.

Design, develop, test, deploy, and support scalable cloud-native applications using Java, Spring Boot, React, TypeScript, Node.js, PostgreSQL, microservices, and REST APIs. Build CI/CD pipelines, containerized deployments, integrations, observability, and secure distributed systems. Troubleshoot production issues and improve performance, resilience, and maintainability while collaborating with product, UX, QA, DevOps, architecture, and engineering teams.

Develop and deploy Java Spring Boot microservices, REST APIs, automated tests, performance and chaos testing solutions. Manage EKS infrastructure, CI/CD workflows, monitoring, JVM and database optimization, and production support. Migrate TIBCO BW processes to Apache Camel and ActiveMQ Artemis, implementing resilient messaging and standardized exception handling. Maintain API documentation, testing records, and ServiceNow change-management tickets.

Design, develop, test, deploy, and support scalable Java and Spring Boot microservices. Build REST APIs, automated tests, Camel and Artemis messaging workflows, and resilient infrastructure on EKS. Collaborate on CI/CD, monitor production systems with Datadog, optimize performance, document APIs and testing outcomes, and manage ServiceNow deployment tickets. The role also involves migrating TIBCO BW processes to Apache Camel and supporting production installations across various U.S. locations.

Develop and architect scalable Java software for NinjaOne’s endpoint management platform. The role involves building high-availability services, leading technical initiatives, making architectural decisions, improving quality practices, collaborating cross-functionally, mentoring engineers, and addressing scalability, performance, and technical debt challenges.

Develop and scale backend patch-management software using Java and Kotlin for millions of endpoints. Implement enterprise software, design scalable systems, build REST services, work with relational databases and caching systems, and uphold rigorous testing and quality standards. Collaborate with AI workflow, server, platform, design, and product teams. React or Angular experience may support occasional frontend work.

Build enterprise workforce management software for forecasting, staffing, scheduling, adherence, intraday management, and operational reporting. Develop Java and Spring Boot microservices, React and TypeScript applications, REST APIs, event-driven workflows, PostgreSQL data models, integrations, and cloud-native deployments. Support CI/CD, production troubleshooting, performance optimization, architecture discussions, code reviews, and stakeholder collaboration across product, QA, DevOps, UX, and operations.

Develop and support scalable cloud-native applications using Java, Spring Boot, React, TypeScript, Node.js, PostgreSQL, and microservices. Responsibilities include building REST APIs, integrations, CI/CD pipelines, containerized deployments, observability, automated testing, and production support. The engineer will collaborate with product, UX, QA, DevOps, architecture, and clients while improving application performance, resilience, and maintainability. Workforce Management, Customer Experience, contact center, cloud, messaging, and secure API experience are advantageous.

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.

Senior Backend Engineer responsible for designing scalable Java Spring microservices, implementing features, resolving defects, and improving backend architecture. The role involves event-driven systems, relational and NoSQL databases, testing, code quality, mentoring engineers, technical leadership, and collaboration with product teams. Engineers will also validate AI-assisted code, promote AI development practices, and work with cloud-native tools across AWS, Docker, Kubernetes, and continuous delivery systems.

Build and maintain Java backend services, REST APIs, and full-stack web application features. Develop frontend functionality, use Python for supporting work, and apply AI coding tools such as Claude Code for development, testing, and debugging. Collaborate on design decisions and code reviews, troubleshoot issues, and support application deployment and maintenance across cloud environments.

Develop full-stack enterprise applications and microservices using Java, Spring Boot, REST/OpenAPI, relational databases, JMS, and Kafka. Build automated tests, Docker containers, Kubernetes deployments, CI/CD pipelines, API portals, and React or Angular interfaces. Troubleshoot application, database, messaging, and cloud-native infrastructure issues while applying secure coding, API governance, observability, and event-driven architecture practices. The role supports federal civilian programs remotely during East Coast hours, requires U.S. citizenship, quarterly travel, and either Public Trust eligibility or an active Secret clearance depending on program.

Build and maintain Java and Spring Boot backend services, REST APIs, SQL integrations, and React or Angular interfaces. Write tested code, troubleshoot issues, improve performance, and support deployment through CI/CD. The role also involves integrating basic AI capabilities such as LLM APIs and AI assistants into application workflows.

Provides senior technical leadership for Java backend development on an AWS-hosted digital platform. Designs, develops, tests, deploys, and maintains RESTful microservices and scalable applications. Leads code reviews, mentors developers, resolves complex technical issues, establishes software quality practices, and guides documentation. Collaborates on cross-functional Agile teams to deliver new functionality, using cloud services, message streaming, databases, CI/CD pipelines, and automated testing tools.

Senior individual-contributor backend engineer responsible for designing, building, and operating production-grade, highly available, strongly consistent services for wallet operations, transaction orchestration, blockchain integrations, and event-driven workflows. Implement secure, scalable APIs, cryptographic key management, Kafka-based event systems, observability with OpenTelemetry, CI/CD pipelines, and produce tests, API specs, and operational runbooks.

Designs, develops, tests, deploys, and supports secure Java software using Agile, XP, TDD, and CI/CD practices. Collaborates with cross-functional teams on system and application design, contributes to planning and retrospectives, provides production support, and serves as a domain subject matter expert. The role also establishes deployment practices, shares knowledge, and mentors junior engineers while working with APIs, databases, messaging systems, security tools, and cloud platforms.

Develop and deploy full-stack applications using Java, Spring, Angular, Oracle, and Azure. Responsibilities include building REST APIs and microservices, optimizing database performance, troubleshooting across the stack, participating in architecture and code reviews, and collaborating with QA, DevOps, UX, and product teams.

Develop and maintain scalable enterprise Java applications and Spring-based microservices. Responsibilities include hands-on coding, unit and system testing, debugging, technical documentation, performance optimization, troubleshooting distributed cloud environments, and adherence to software development and security standards. Collaborate with technical leads, architects, and cross-functional Agile teams to design and implement complex global applications.

Design and develop Java Spring Boot backend microservices for a Master Data Management platform, including data ingestion, validation, match-merge, golden records, workflows, REST APIs, and downstream integrations. Build AWS-based processing and orchestration solutions, implement security controls, optimize performance, write tests, support containerized CI/CD deployments, and contribute to architecture, documentation, code reviews, and Agile delivery.

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.