Top Senior Java Engineer Jobs in Chicago, IL

Leads design, development, testing, troubleshooting, and production delivery of scalable Java-based financial technology solutions. Builds resilient microservices using Java, Spring Boot, Kafka, React, AWS, and Kubernetes; manages unit, SIT, and UAT testing; supports clearing and settlement functions; and promotes secure, responsible AI-assisted engineering practices, automation, code quality, and operational stability.

Leads the design, development, testing, debugging, documentation, and implementation of complex Java applications. Provides technical solutions, prototypes, integrations, system enhancements, and performance improvements while monitoring system efficiency and resiliency. Collaborates with product owners, business analysts, and delivery management to gather requirements and resolve issues. Mentors team members, reviews code for quality and security compliance, communicates risks to stakeholders, and makes decisions on complex application development matters.

Leads two scrum teams while remaining hands-on in software development at least 50% of the time. Designs, codes, tests, debugs, and supports secure, resilient, high-throughput distributed payment systems using Java and Spring Boot. Drives AI-assisted engineering practices, automation, CI/CD, code quality, operational stability, and responsible AI usage. Evaluates technical solutions with vendors and internal teams and leads engineering communities of practice.

Leads complex software optimization initiatives from design through implementation and validation. Builds cloud-native services, data pipelines, dashboards, automation, and AI-enabled forecasting solutions. Analyzes cloud costs, resource utilization, reliability, capacity, and engineering productivity while partnering with Engineering, Finance, Product, Data, Platform, and SRE teams. Ensures scalable and secure integrations, testing, observability, financial data quality, and measurable savings. Provides technical leadership and mentorship to junior engineers without direct people-management responsibilities.

Maintain and enhance enterprise Java applications, resolve defects, monitor performance, and support migration to a modernized system. Develop Java applications and APIs, perform data conversion and integration, and optimize Oracle SQL queries, procedures, and database structures. Collaborate with technical stakeholders, troubleshoot system issues, and document technical changes. Preferred experience includes AI-assisted development tools and dashboard platforms such as Power BI or Tableau.

Lead development of scalable Java backend applications and high-availability cloud services. Design architectures, REST APIs, databases, caching systems, and distributed session infrastructure. Mentor engineers, drive technical initiatives, address performance and scalability challenges, and uphold quality and automation practices for endpoint management products.

Design, develop, test, deploy, and support secure Java applications and microservices in the identity and authentication domain. Translate business and security requirements into technical designs, build REST APIs, remediate vulnerabilities, and support reliability, compliance, audits, and production issues. Lead complex technical initiatives, participate in Agile and DevOps delivery, conduct reviews, plan releases, perform root-cause analysis, and mentor engineers.

Designs, develops, deploys, and supports enterprise web applications and distributed systems. The role combines advanced Java and Spring Boot backend development with React-based frontend engineering, microservices, REST APIs, SQL databases, cloud platforms, CI/CD, and production troubleshooting. Preferred experience includes Kafka or RabbitMQ, Docker, Kubernetes, distributed systems, and automated testing. The developer collaborates with product, architecture, DevOps, and engineering teams in an Agile environment.

Develop and enhance enterprise software using Java and Spring Boot, designing cloud-native solutions on AWS. Build infrastructure with Terraform, maintain CI/CD pipelines, use Git, Docker, Kubernetes, and automated testing, and support production environments. Collaborate with cross-functional teams, solve complex technical problems, improve system reliability, and guide team members. This role is fully onsite in Chicago.

Leads and mentors a distributed Agile software team while remaining hands-on in architecture, Java and Spring Boot development, Angular applications, REST APIs, AWS infrastructure, containerization, CI/CD, databases, observability, security, and production troubleshooting. Translates customer requirements into technical solutions, drives engineering best practices, supports capacity planning and performance feedback, and oversees scalable, resilient enterprise applications using AWS, Docker, Terraform/OpenTofu, and modern software development practices.

Develop and maintain scalable Java and Spring Boot backend applications, microservices, and RESTful APIs. Responsibilities include database integration, code reviews, performance optimization, production troubleshooting, testing, CI/CD, cloud deployment, and collaboration with product, QA, and DevOps teams.

Develop and maintain Java applications, RESTful services, and Angular frontends using Spring Boot and NgRx. Deploy applications to cloud platforms, practice TDD, manage CI/CD with Jenkins, and work with Oracle and PostgreSQL databases. Participate in agile processes, collaborate with cross-functional teams, mentor engineers, and independently lead technical initiatives and feature delivery.

Develop and scale Java and Kotlin backend services powering vulnerability detection, CVE correlation, risk prioritization, and remediation workflows across millions of endpoints. Design high-availability distributed systems, implement scalable data structures and APIs, contribute production code, and uphold rigorous testing and quality standards. Collaborate with product and detection teams to improve vulnerability remediation speed.

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.

Build enterprise-scale workforce management software for forecasting, capacity planning, scheduling, adherence, intraday management, and reporting. Develop Java and Spring Boot microservices, React and TypeScript applications, REST APIs, event-driven workflows, database models, integrations, and cloud-native deployments. Support CI/CD, performance optimization, production troubleshooting, architecture discussions, and client-facing collaboration. Apply workforce management expertise, complex business rules, scheduling algorithms, and high-volume operational data experience.

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.

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.

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 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.

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.

Design, implement, test, and deliver scalable server-side Java services for a Highly Autonomous Driving map platform. Participate across the Agile lifecycle, work with big-data processing (Hadoop/MapReduce), and deploy to cloud environments using AWS, Docker, and Puppet.

Investigate and resolve data-quality issues in large-scale distributed systems. Design Java-based repair pipelines and idempotent correction jobs for high-volume datasets, debug existing code, use AWS services for queue-driven and batch workflows, optimize performance and concurrency, and communicate technical findings and risks to stakeholders.