Top Senior Java Engineer Jobs in NYC, NY

Lead development and delivery of pricing and yield-curve systems for fixed-income and repo products. Integrate live market and futures data, standardize curve risk buckets, implement consistent pricing via pricers and curve builders, roll out Fast Pricer APIs, and collaborate with traders, quants, and technology teams to ensure accurate risk and P&L in a real-time Java graph framework.

Design, build, and unit test Java-based backend services and high-volume data pipelines. Implement event-driven architectures (Kafka/MSK), API-driven integrations (REST), and data processing from Oracle and NoSQL sources. Deploy and monitor containerized applications using Docker, collaborate in agile teams, and produce documentation and support for deployed solutions.

Design and build scalable Java-based data processing applications and backend services using Spring Boot. Implement event-driven pipelines with Kafka, integrate data from Oracle and NoSQL sources, expose REST APIs, optimize high-volume data processing, containerize with Docker, participate in deployments, monitoring, troubleshooting, documentation, and agile team collaboration.

Lead design and deliver production-grade trading systems using Python and Java, build AI-native platforms, champion AI-assisted engineering practices, partner with Credit Sales & Trading, support production stability, and drive adoption of secure, automated SDLC and cloud-native solutions.

Lead an agile engineering team to design, build, and deliver secure, scalable backend systems. Provide technical guidance, develop and review production code, design low-latency Kafka data pipelines, architect microservices and APIs, provision AWS infrastructure using Terraform, and advocate firmwide engineering best practices.

Lead design, build, and maintain low-latency options algorithmic trading systems. Develop secure, high-quality production code, optimize performance, integrate market data and FIX protocols, apply AI-assisted engineering practices, mentor engineers, and collaborate with product to translate strategies into scalable algorithms while ensuring operational stability and observability.

Lead engineering of secure, scalable blockchain and cloud-native services. Design, develop, review, and troubleshoot production code; improve operational stability and automation; guide architecture evaluations and vendor integrations. Drive adoption and governance of AI-assisted engineering practices and coach teams on secure, compliant usage.

Lead hands-on design, development, and support of real-time Fixed Income trading systems. Drive modernization, build trading tools, integrate messaging hubs, analyze legacy systems, deliver proofs-of-concept, define KPIs, and collaborate with trading, risk, and P&L stakeholders to ensure scalable, stable solutions.

Develop and maintain applications using Java and related technologies, while also working with Angular JS and Node JS frameworks.

Leads the entire application lifecycle, translating requirements into solutions, designing, developing, testing, and implementing technology solutions aimed at improving operations.

The Senior Lead Data Engineer designs and develops technical solutions, leads a team of developers, and utilizes big data and cloud technologies to deliver robust solutions for Capital One.

Senior Java developer responsible for designing, implementing and testing Java/J2EE web applications. Work with Spring, Hibernate, JMS, web frameworks (Struts/JSF), frontend technologies (Angular, Bootstrap), relational databases (Oracle/SQL Server/MySQL), CI/build tools (Maven/Ant), testing tools, and application servers. Participate in Agile ceremonies, estimations, design sessions, and full SDLC activities.

Senior Java developer responsible for designing and implementing server- and client-side web applications using Java/J2EE, frameworks (Spring, Hibernate, JSF/Struts), rich UI frameworks, SOA/Web Services, and automation tools. Collaborate in agile/TDD environments to build APIs, frameworks, and core business logic for distributed, real-time systems.

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.

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.

Lead design and delivery of high-throughput, fault-tolerant backend systems for Aladdin. Build microservices, streaming architectures, and distributed applications; collaborate with product and global teams; apply test-driven development, perform code reviews, and provide production support while mentoring engineers and driving technical roadmap.

Design, develop, and optimize low-latency, high-throughput Java backend services and RESTful microservices for payments. Deploy and scale on OpenShift/Kubernetes and AWS, integrate with MongoDB and other datastores, improve performance, observability, and fault tolerance, and mentor peers while driving architectural best practices.

Design, build, and maintain scalable J2EE business applications. Implement features, fix bugs, participate in code reviews, automate tests, optimize performance, and produce documentation.

Senior Java Developer on an agile team to design, develop, test, and deploy enterprise-grade Java/J2EE web applications. Ensure performance, security, scalability, maintain documentation, review requirements, propose solutions, and improve SDLC through TDD, CI/CD automation, code reviews, and collaboration with architects and stakeholders.

Lead modernization and migration of legacy Struts 1 applications to modern Java platforms. Design, develop, and maintain scalable Java 21 applications using Spring 6 and REST APIs, troubleshoot production issues, participate in code reviews, and collaborate with cross-functional teams to deliver high-quality software.

Lead reverse-engineering of TIBCO BW/MFT processes, document business rules, and reimplement them as modular Java/Spring Boot microservices. Migrate protocols to Kafka/RabbitMQ/REST, ensure data consistency, and perform performance testing to match legacy SLAs.

Design and build Java/J2EE solutions using Spring and APIs; develop webservices, DB schemas, PL/SQL and transactional SQL in DB2/Oracle; collaborate with architects, developers and DevOps to implement CI/CD (Jenkins, uDeploy), ensure code quality (Sonar), perform code reviews and testing, resolve technical roadblocks, and drive process improvements. Requires strong communication and teamwork.

Design, develop, and maintain high-performance Java microservices using Spring Boot. Implement threading/concurrency, fault-tolerance (Hystrix/circuit breakers), observability (SLI/SLO), and event-driven solutions with Kafka. Deploy and operate services on Kubernetes and AWS, mentor junior developers, and collaborate with cross-functional teams to deliver reliable, scalable features.

Develop and maintain core Elasticsearch infrastructure and shared platform features. Design scalable APIs, solve performance and concurrency issues, improve observability and CI/CD, automate developer workflows, lead cross-team projects, support complex operational investigations, and use AI to accelerate development and debugging.

The role involves improving Elasticsearch's distributed components, maintaining cluster coordination systems, and addressing complex issues to optimize performance and scalability.