Top Java Developer Jobs in Buffalo, NY

As a Principal Software Data Engineer, you'll lead the design, development, and optimization of large-scale data platforms and pipelines, ensuring data governance and driving innovation in a collaborative environment.

Design, develop and operate microservice-based components for a derivatives exchange platform. Collaborate with product, security and DevOps teams to build scalable, secure back-end systems with automated testing, CI/CD, and rapid deployment. Participate in code audits, testing, release, and cross-stack problem solving; optimize and implement trading models and products.

The Senior Software Engineer will develop and maintain big data applications, focusing on distributed computing, automation, and collaboration with teams to enhance healthcare solutions.

As a Java Software Engineer III, you will design, develop, and maintain scalable Java-based backend services, mentor other engineers, and influence architectural decisions in an agile environment.

As a Senior Developer, you will modernize COBOL systems to Java, enhancing functionality and performance while collaborating with stakeholders and ensuring coding standards are met.

As a Senior Software Engineer, you will build cloud solutions, define migration strategies, mentor junior engineers, and ensure architectural integrity while collaborating with peers.

The Software Engineer will design and develop the MobiFin Elite platform for Fintech solutions, ensuring compliance with business requirements while mentoring junior developers and enhancing application performance.

Design, build, and support cloud-native full stack or backend Java products using TDD, CI/CD, microservices and event-driven patterns. Collaborate with product teams, provide production support, implement monitoring and ensure secure, performant systems.

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

Build and maintain straightforward 2D game features using Java and libGDX to generate high-quality training data for AI. Implement basic mechanics (sprite management, game loops, input handling), fix performance issues, participate in code reviews, document workflows, and collaborate remotely with AI experts and cross-functional teams.

Develop and optimize cross-platform 2D and 3D games using Java and libGDX for desktop, Android, and web. Collaborate with artists and designers to prototype and implement gameplay, UI, and interactive systems, maintain modular reusable code, profile and debug performance issues, and produce clear documentation and team communication.

Design, implement, test, and maintain full‑stack features and services for the Cayuse Research Platform. Drive architecture, prototypes, and technical debt reduction while practicing TDD, expanding automated QA, collaborating cross‑functionally, and ensuring high quality delivery in an Agile environment.

The Senior Software Engineer at Ensono will design, develop, and maintain enterprise Java applications, handle technical analyses, manage middleware configurations, and implement DevOps practices.

Design, develop, and maintain Java-based backend services and APIs for KeeperApp. Own backend components, optimize MySQL schemas/queries, ensure performance and reliability, apply secure coding practices, participate in code reviews, and collaborate with product and engineering teams to deliver features iteratively.

The Senior Java Engineer will design complex systems, optimize performance, maintain code quality, and ensure application reliability. Responsibilities include translating requirements into applications and troubleshooting issues.

Design and develop backend systems for a trading platform, implement low-latency components, collaborate with teams, and maintain automated test suites.