Top Java Developer Jobs in NYC, NY

Lead design and delivery of distributed, event-driven backend services using Java, Kafka, and AWS. Define architecture, ensure scalability/reliability/observability, own production operations, drive API/data modeling, implement CI/CD and testing, and mentor engineering teams.

The role involves designing and implementing FXall's Trading System User Interface using Java/Swing, focusing on system design, multi-threading, and collaboration with traders.

Develop web scale applications, work with QA for testing, participate in project planning, estimate work scope, and review peers' work.

Seeking an experienced Java Backend Engineer to design, develop, and maintain backend systems and APIs using modern Java technologies.

Lead backend engineer responsible for architecting and delivering large-scale distributed microservices for Capital One Travel. Lead projects and mentor developers, collaborate with product teams, design cloud-native solutions using Java/Scala and AWS, and promote shared platform patterns and best practices across stakeholder teams.

Develop and maintain Core Java applications with heavy daily coding responsibility. Design and build automated test frameworks, implement automation, and apply data structures and algorithms. Collaborate and communicate effectively with team and stakeholders.

The Lead Software Engineer will lead technology projects, develop cloud-based solutions, and work with a team to create a messaging platform for Capital One Travel products.

Design, decompose, and migrate Java/Spring identity services into cloud-native, platform-consumable microservices. Define API contracts, build developer portal and observability, use CI/CD and container orchestration, and ensure secure, reliable production code while partnering with product and integration teams.

Lead a team and portfolio of full‑stack, cloud-based projects using microservices. Design and deliver scalable solutions with React/Java, containers, and AWS; mentor engineers; collaborate with product managers; drive tech experimentation and community participation to meet regulatory and customer needs.

Lead and mentor a team building cloud-based full-stack solutions using distributed microservices. Collaborate with product managers, drive technical direction, experiment with new technologies, and deliver scalable AWS-hosted applications leveraging Java, React, containerization, and various databases.

Lead and contribute to design, develop, and maintain scalable Java/Spring Boot services on AWS. Drive adoption of enterprise-authorized AI-assisted engineering practices, ensure operational stability and monitoring (Prometheus/Grafana), troubleshoot complex issues, participate in architecture and code review, automate remediation, and mentor/lead software engineers.

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 and deliver secure, high-quality Java/Spring Boot solutions across the SDLC. Drive AI-assisted engineering adoption, improve automation and operational stability, evaluate vendor architectures, coach teams on secure/responsible AI use, and support cloud-native, observability, and event-driven designs within financial services.

Lead technical contributor on an agile team building secure, scalable consumer card technology. Designs, develops, debugs, and automates production code and APIs; drives architecture, automation/CI-CD, cloud-native practices (AWS/GCP), vendor evaluations, and adoption of AI-assisted engineering to improve code quality and operational stability.

Lead backend engineering for cloud-native, multi-cloud fintech products. Design scalable, reliable, and secure systems using domain modeling. Build testable, operable code, resolve production incidents, optimize performance and data access, and enable zero-downtime releases. Mentor teammates, drive technical direction, and continuously modernize technologies and patterns.

Lead technical design and delivery of secure, scalable Java-based microservices on AWS. Guide and coach engineers, drive adoption of AI-assisted development practices, ensure code quality, and influence architecture and operational standards.

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 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.

Lead backend engineering for cloud-native, JVM-based services. Design scalable, reliable, secure systems; apply domain modeling; ensure zero-downtime releases; optimize data access and performance; troubleshoot and prevent issues; mentor teammates and evolve platform technology.

Lead backend engineer responsible for designing, building, and operating cloud-native, microservices-based systems; ensuring scalable, secure, high-availability data processing; leading team adoption of enterprise AI-assisted development practices; driving testing, release reliability, and continuous technology improvements.

Lead an agile team to design, build, and deliver secure, scalable web and backend systems. Develop production-quality code, architect microservices (Java/Python/Spring Boot), implement cloud-native and data processing solutions, improve operational stability, mentor engineers, evaluate vendors, and promote engineering best practices and new technologies.

Lead design, build, and operate scalable, resilient cloud-native Java microservices. Produce high-quality secure code, drive CI/CD and automation, manage Kubernetes deployments on AWS, champion AI-assisted engineering practices, evaluate vendors, and improve operational stability and team standards.

Lead design, develop, and troubleshoot secure, scalable software solutions; produce architecture artifacts; analyze large datasets for improvements; champion AI-assisted engineering practices; ensure CI/CD, resiliency, and security; coach and promote engineering best practices.

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 and mentor an agile engineering team to design, build, test, and operate secure, scalable Java-based microservices on AWS. Drive technical decisions, code quality, CI/CD practices, and adoption of enterprise AI-assisted development tools while ensuring resilient, secure production delivery.