Top Senior Java Developer Jobs

Build and lead high-throughput Java microservices for real-time payment processing. Design event-driven architectures with Kafka, develop resilient Spring Boot cloud services, optimize JVM and data-access performance, implement financial messaging standards, and establish observability, testing, security, and deployment practices. Mentor engineers, lead technical reviews, and collaborate with product, architecture, SRE, and cross-functional teams to deliver highly available, production-grade platforms.

Design and build scalable media platform systems for uploading, processing, managing, and serving image, video, and audio assets. Own complex backend projects, develop reliable distributed systems and REST APIs, integrate cloud services and GenAI technologies, collaborate across engineering teams, mentor teammates, and participate in production on-call rotations.

Develop and maintain Java web applications that interact with databases. Responsibilities include gathering requirements, writing Java and SQL code, optimizing database queries, supporting backend development and data integration, applying Agile and software development best practices, and collaborating with technical teams to deliver quality code.

Design, develop, test, document, and maintain high-performance Java trading and brokerage systems. Build backend services integrating REST, WebSockets, and FIX; troubleshoot complex issues; provide escalated support; collaborate across product and engineering teams; and deliver reliable, low-latency features within a mature codebase.

Design and implement high-performance Java platform components that improve reliability, efficiency, and productivity across Uber’s backend services. Lead architecture, optimize JVM and distributed-system performance, support modern Java adoption, develop scalable platform designs, and collaborate with platform teams on technical improvements and developer tooling.

Leads a five-person development and system operations team supporting vehicle processing systems. Responsibilities include application development, system maintenance, troubleshooting, data integration, workflow automation, vehicle tracking, operational reporting, user support, training, and performance optimization. The role requires Java and Spring expertise, Oracle application experience, people management, and Korean-English bilingual communication.

Leads a five-person development and system operations team supporting vehicle processing applications. Responsibilities include Java application development, vehicle tracking and inventory systems, data integrations, workflow automation, system maintenance, troubleshooting, user support, training, reporting, and performance optimization. The role requires people management, strong Java/Spring, MyBatis or iBATIS, Oracle, web technology expertise, and Korean-English bilingual communication.

Leads software engineering efforts within an agile infrastructure platform team. Develops, reviews, debugs, and governs secure production code using Java full-stack technologies, React, cloud platforms, containers, and relational databases. Drives adoption of AI-assisted engineering tools, establishes validation and security standards, coaches technical teams, promotes SDLC automation, and influences technology decisions. Balances hands-on development with technical leadership and contributes to an inclusive engineering culture.

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.

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.

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.

Lead design and implementation of payer-centric interoperability platforms, focusing on FHIR services and secure healthcare data exchange. Mentor engineers and improve scalability in production environments.

Design, develop, test, deploy, and maintain secure full-stack applications for Mastercard’s Enterprise Credit Risk ecosystem. Build Java and Spring backend services, modern frontend interfaces, REST APIs, microservices, and event-driven integrations. Collaborate with product, risk, architecture, and data teams; troubleshoot complex issues; improve performance, reliability, observability, and security; contribute to cloud-native delivery and CI/CD; mentor engineers; and participate in Agile planning and technical design.

Leads and contributes to the design, development, and delivery of scalable Java and Spring Boot software solutions. Designs microservices and APIs, supports cloud initiatives, creates proofs of concept, optimizes performance, conducts code reviews, resolves complex issues, and provides root-cause analysis. Collaborates with architects, business leaders, and engineering teams while mentoring junior developers and promoting technical best practices, quality, and innovation.

Build and maintain scalable full-stack applications using React and Java or Python. Develop microservices, optimize high-throughput systems, resolve architectural and performance issues, and deliver production-grade software in Agile environments. The role includes end-to-end implementation ownership, cloud development, AI-assisted engineering, and mentoring or leading developers.

Lead development of enterprise-grade Java services and APIs for financial and wealth-management applications. Responsibilities include architecture, system design, programming, testing, deployment, performance optimization, production support, root-cause analysis, documentation, and technical mentorship. The role also coordinates cross-functional projects and applies AI-assisted development tools throughout the SDLC. Candidates need strong Java, Spring, microservices, Python, cloud, testing, CI/CD, and distributed-systems experience.

Build and operate cloud-native, AI-enabled applications for a financial services client. Develop React and TypeScript/JavaScript front ends with Java and Spring Boot microservices, deploy scalable AWS-based systems, integrate LLMs, RAG, MCP, and agent frameworks, maintain CI/CD pipelines, conduct automated and performance testing, and implement observability, security, and reliability practices. Collaborate with cross-functional stakeholders and troubleshoot production issues while working fully onsite.

Design, develop, test, deploy, and support scalable cloud-native workforce management and customer experience applications. Build Java and Spring Boot backend services, React and TypeScript interfaces, Node.js components, REST APIs, microservices, PostgreSQL data models, integrations, and CI/CD pipelines. Contribute to containerized cloud deployments, observability, security, performance optimization, production troubleshooting, and cross-functional technical collaboration.

Develop and support scalable cloud-native workforce management and customer experience applications. Build Java and Spring Boot backend services, React and TypeScript interfaces, REST APIs, microservices, database solutions, integrations, and CI/CD pipelines. Contribute to containerized deployments, observability, security, automated testing, performance improvements, and production support while collaborating with product, UX, QA, DevOps, architecture, and engineering 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 maintain full-stack Java applications using Java EE, RESTful microservices, Oracle, Angular, TypeScript, and Node.js. Use AI coding assistants for code generation, debugging, optimization, and prompt-driven development while validating output for accuracy, performance, and security. Apply JVM performance profiling, software engineering best practices, and potentially CI/CD, DevOps, Docker, Unix scripting, caching, and SAML technologies. The role requires four days onsite weekly in Lansing or Farmington Hills, Michigan.

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 support a Java/J2EE web application hosted on AWS. Responsibilities include customer support, application enhancements, integrations with customer front- and back-office systems, API and web services development, SQL and SSRS reporting, debugging, testing, and collaboration with a small development and customer operations team.

Develop and maintain Java enterprise applications supporting pricing, risk, and P&L calculations for asset-backed finance front-office systems. Analyze requirements, resolve technical issues, recommend process improvements, provide application support, document processes, conduct testing, and train users. The role requires collaboration with traders, middle office, operations, and risk teams while ensuring application quality, security, and compliance.

Lead backend Java development for sales incentive technology solutions. Collaborate with business stakeholders, architects, developers, testers, and managers on complex Agile projects. Build and maintain Java applications using Spring, REST, SQL Server, J2EE, application servers, and related frameworks. Provide technical leadership, perform substantial SQL development, support testing and deployment practices, and contribute to architecture, reusable APIs, integrations, and modern front-end technology initiatives.