Top Java Developer Jobs in Chicago, IL

Leads software engineering within an agile banking technology team, designing, developing, testing, debugging, and operating secure, scalable Java applications. Reviews code, improves automation and continuous delivery, resolves recurring operational issues, and promotes responsible AI-assisted engineering practices. Evaluates architectural solutions with vendors and internal teams while guiding technical delivery, resiliency, cloud-native development, data streaming, and secure software practices.

Lead the design, development, and support of large-scale Java enterprise applications and cloud-native platforms. Architect microservices, REST APIs, event-driven services, and distributed systems; implement CI/CD, DevSecOps, automated testing, security, monitoring, and observability practices. Provide technical leadership and mentorship, support mission-critical production systems, lead incident resolution, and improve reliability and performance across global, regulated-data environments. Preferred experience includes AI/LLM integrations, globally distributed databases, multi-region architectures, and SRE practices.

Design, build, deploy, and support scalable Java microservices on AWS. Provide technical leadership, architectural direction, code reviews, troubleshooting, proof-of-concept development, and cross-functional collaboration. Work with high-throughput data, messaging systems, distributed architectures, observability, and AI-assisted development tools. Participate in on-call support, mentor engineers, lead architectural initiatives, and deliver reliable SaaS platform features.

Leads software engineering projects and developer teams building distributed microservices and full-stack cloud solutions. Collaborates with product managers, mentors engineers, addresses regulatory technology needs, and delivers customer-focused systems. Uses Go, Java, Python, JavaScript, TypeScript, SQL, AWS, Docker, Kubernetes, relational databases, and NoSQL technologies while evaluating emerging tools and AI-assisted productivity solutions.

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 software engineering projects and developer teams building distributed microservices and full-stack systems. Delivers cloud-based solutions supporting regulatory needs and customer experiences, mentors engineers, evaluates emerging technologies, and collaborates with product managers. The role uses Java, Go, JavaScript, TypeScript, SQL, Python, AWS, databases, Docker, and Kubernetes.

Leads architecture and technical direction for scalable, high-availability software services. Owns complex, multi-team initiatives, makes autonomous technical decisions, partners cross-functionally, mentors engineers, establishes standards, and advocates for quality. The role develops mission-critical systems supporting millions of endpoints and requires deep Java expertise, scalable system design, API development, relational databases, and strong testing practices.

Build scalable, API-first platform capabilities through manifest-driven development. Develop Java and Kotlin backend services and Python workers for third-party integrations, collaborate across engineering teams, participate in architecture reviews, and troubleshoot production systems using logs, metrics, and traces. The role requires expertise in highly scalable systems, object-oriented design, REST services, relational databases, responsive messaging, caching, and software quality practices.

Leads development and architecture of scalable Java software for NinjaOne’s endpoint management platform. Designs high-availability systems, addresses large-scale datastore performance and data-volume challenges, contributes to APIs and platform improvements, drives quality practices, owns technical initiatives, collaborates cross-functionally, and mentors junior engineers.

Lead development and architecture of highly scalable Java services supporting NinjaOne’s third-party patching catalog. Design high-availability systems, solve complex scalability and system-design challenges, improve quality and performance, collaborate cross-functionally, mentor engineers, and own technical initiatives. The role requires expertise in Java, RESTful APIs, Spring, relational databases, caching, asynchronous application design, and large-scale cloud systems.

Design and implement scalable backup software for endpoints, servers, and cloud applications. Develop Java and Kotlin services, optimize databases and queries, debug production systems, and resolve distributed-system performance issues. Contribute code, reviews, architecture discussions, documentation, and cross-team reliability initiatives. Mentor engineers and help deliver resilient products operating at large scale.

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.

Lead development of scalable Java software for endpoint management and IT operations. Design high-availability systems, influence architecture, solve complex scalability challenges, improve quality practices, collaborate cross-functionally, mentor engineers, and own technical initiatives supporting millions of endpoints and servers.

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.

Design and develop scalable, high-availability software for NinjaOne’s IT Operations products. Build and improve Java and Kotlin applications, implement design patterns, solve enterprise-scale challenges, optimize data structures and databases, develop REST services, and contribute to client-server systems supporting millions of endpoints. Collaborate with engineers to maintain high-quality testing and reliable product delivery.

Design and develop scalable, highly available software systems for NinjaOne’s IT Operations platform. Build Java and Kotlin applications, implement enterprise design patterns, optimize systems serving millions of endpoints, and contribute production code. Responsibilities include REST service development, relational database work, client-server messaging, caching, scalability improvements, and quality testing. The role collaborates with engineers to deliver reliable cloud services supporting worldwide operations.

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.

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.

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.

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.

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.