Top Senior Java Developer Jobs

The Senior Back End Software Developer will design and develop cloud notebook applications, focusing on back-end systems while collaborating on features and implementing secure interfaces and services.

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.

The role requires a Senior Java Developer to work on Java, J2EE, and related technologies, handling both development and production support with leadership responsibilities.

Lead backend architecture and implementation for Citi's FX eCommerce trading platform. Build high-performance, multithreaded Java services, integrate with product teams, resolve complex system issues, coach mid-level developers, and ensure resilient, low-latency, production-ready solutions that meet regulatory and risk standards.

The Sr. Staff Software Engineer will lead the development and deployment of software solutions, shaping technical strategies, mentoring engineers, and overseeing systems' long-term health.

The Sr. Software Engineer designs, develops, tests, and maintains software applications, serving as an expert on projects and driving the full development life cycle, while also mentoring other engineers and ensuring code quality through reviews and testing.

Seeking a Senior Java Developer to lead backend product development, design software subsystems, and interact with customers within a collaborative team.

Design, build, and maintain high-volume Java/J2EE microservices and RESTful APIs using Spring Boot. Implement cloud-native, 12‑Factor services, integrate messaging (Kafka/MQ/ESB), tune SQL/NoSQL databases, contribute to CI/CD and DevSecOps, troubleshoot production systems, and collaborate with product and engineering teams in Agile/Scrum.

Design, develop, test, and deploy scalable full-stack solutions across the lifecycle. Collaborate in Agile teams, use cloud platforms and CI/CD, mentor teammates, engage directly with clients, and apply modern development and DevOps practices.

Design, develop, test, and deploy Web3 components and backend services for Citi's digital asset platform. Build smart contracts, blockchain protocol connectors, event-driven systems, wallet integrations, and custody/tokenization integrations. Collaborate in a distributed Agile team, perform code reviews, maintain security best practices, and contribute architecture and documentation for production-grade institutional Web3 infrastructure.

Design, develop, unit test and maintain features for a business-critical website as a full-stack developer. Collaborate with product owners, security, QA and stakeholders within a SAFe agile team. Follow release/build/configuration management and project governance, maintain documentation, and work on microservices and front-end technologies.

Design, build, and maintain backend services and large-scale data pipelines that ingest, transform, enrich, and index billions of records. Own features end-to-end, contribute to architecture, write testable performant code, perform reviews, support production systems, and collaborate with product and data science teams. Apply AI/LLM tooling to improve development and delivery.

Lead a small engineering team while writing production Java backend code daily. Design and own data ingestion, enrichment, entity resolution, and search-indexing systems. Ensure reliability, performance, observability, and technical quality; mentor engineers; collaborate with product and partners; drive down technical debt; use cloud, containerization, and CI/CD best practices to deliver scalable services.

Design and implement scalable, resilient Java backend services and APIs for logistics (order fulfillment, shipment tracking, fleet management). Build event-driven pipelines, refactor monoliths to microservices, optimize architecture for peak loads, implement CI/CD and cloud deployments, ensure security and regulatory compliance, mentor developers, and maintain observability for mission-critical logistics systems.

Senior Engineer responsible for designing, developing, deploying and operating scalable cloud-native applications. Own services across their lifecycle, drive quality via automated testing and observability, lead incident resolution, champion secure development, influence architecture, reduce technical debt, and mentor other engineers while collaborating with stakeholders and product owners.

Design, build and operate cloud-native microservices using Java and TypeScript. Collaborate with product and stakeholders, drive CI/CD/DevOps practices, ensure quality, security, observability, mentor engineers, and contribute to architecture and incident resolution.

Lead design, build and operate cloud-native, scalable microservices using Java and TypeScript. Own full delivery lifecycle, implement CI/CD, automated testing and observability, resolve incidents, influence architecture, and mentor engineers to improve engineering practices.

Develop and maintain Java/Spring applications, work with AWS and front-end frameworks (Angular/Dojo/jQuery), implement web technologies (HTML, CSS, JavaScript, AJAX), collaborate in Agile teams, and apply UML for design.

Develop server-side code and RESTful interfaces for a web-based UI integrating complex engineering analysis tools. Work in an Agile team, design algorithms, write SQL, ensure basic application security, troubleshoot, and collaborate with engineers and project managers to deliver maintainable, scalable solutions.

Design, develop, and maintain application virtualization software and microservices. Implement features in App Volumes Manager (Ruby on Rails) or Java/J2EE services, troubleshoot customer escalations, produce software designs, build RESTful APIs, and follow test-driven, CI, and Agile practices to deliver high-scale, enterprise-grade solutions.

The Senior Software Engineer will develop APIs and microservices for Disney's commerce platforms, collaborating with product teams and overseeing the end-to-end software development lifecycle.

Designs, develops, tests, debugs, and maintains Java/J2EE applications using Spring, Web Services, ORM (Hibernate/JPA), and application servers. Provides technical direction, implements CI/DevOps practices, participates in design/architecture, and collaborates on complex projects while following SDLC and Agile methods.

Lead design and develop complex enterprise software and data platforms. Act as hands-on full stack developer (Java/Angular) focused on BI, analytics, data products, large-scale database design, data modeling, testing, and data quality. Guide teams, estimate work, resolve technical obstacles, research emerging technologies, and produce documentation and progress reports.

Senior Full Stack Java Developer to build and maintain enterprise-grade backend and UI applications. Collaborate with offshore teams; develop using Java, Spring Boot, Hibernate, ReactJS, Servlets/JSP; implement REST/SOAP services, database access, XML transformations, and unit tests; follow Agile and CI/CD practices.

Develop and sustain a high-performance geospatial collaboration reporting tool. Enhance and redevelop the frontend to meet Section 508 accessibility requirements, troubleshoot interfaces between applications, and implement feature improvements and maintenance for the reporting tool suite.