Lead Java Software Developer

Job Title: Java Developer (Mid-to-Senior | On-Site | U.S. & Canada Travel)
Location: Buffalo, NY – Strictly On-Site
Travel: Required (Primarily within the U.S., with occasional travel to Canada) About the Role
We’re looking for a Mid-to-Senior level Java Developer to join our high-performance, on-site engineering team in Buffalo, NY. This role is tailor-made for someone who has already moved beyond basic CRUD apps and is confident owning complex back-end systems, collaborating with DevOps and QA, and delivering resilient, secure services in a cloud-native environment.You’ll work alongside our front-end and infrastructure teams to build API-driven
architectures that scale. We want someone who understands why performance,
observability, and clean design patterns matter—and who thrives in environments where delivery speed and code quality go hand in hand. Key Responsibilities

• Design and develop robust, testable Java services using Spring Boot and RESTful APIs, integrating with secure cloud-based systems.
• Architect backend components to support real-time applications, asynchronous workflows, and data-rich transactions.
• Lead or contribute to service-level design decisions, schema modeling, dependency management, and system health monitoring.
• Optimize performance through effective use of logging, caching, multi-threading, and error-handling strategies.
• Collaborate cross-functionally with React developers, DevOps, and QA engineers to deliver full-stack solutions.
• Integrate AWS services such as ECS, SecretManager, PostgresSQL
• Participate in Agile ceremonies, peer code reviews, technical planning sessions, and architecture discussions.
• Travel to client sites across the U.S. and Canada to support system rollouts, troubleshoot deployment issues, and represent the engineering team as needed.

Minimum Qualifications

• 5+ years of hands-on professional experience in backend software development with Java and Spring Boot.
• Strong experience with: REST API development, Relational (e.g., PostgreSQL), AWS services like S3, and EC2 or Lambda
• Solid grasp of OOP principles, design patterns, and system modularity.
• Experience in CI/CD workflows, Git, and Agile methodologies.
• Ability to independently own, troubleshoot, and enhance production services in secure environments.
• Excellent communication and technical documentation skills.

Bonus Points For

• Familiarity with: Message queues, event-driven architectures, or pub/sub systems, Authentication/authorization strategies (e.g., JWT, OAuth2), Monitoring and logging tools and Visualization (e.g., Grafana, micrometer)
• Full-stack experience with React, Express, or other front-end frameworks
• Experience in highly regulated industries (e.g., healthcare, finance, government)

Who You Are

• You think in systems and write code that others can read, reuse, and scale.
• You’re comfortable making architectural suggestions—and backing them up.
• You approach projects holistically, not just from the standpoint of what you’re coding.
• You take initiative when specs are unclear and aren’t afraid to ask the right questions.
• You care about security, reliability, and what happens after your code hits production.

Work Environment

• This is a strictly on-site role based in Buffalo, NY.
• Regular travel throughout the U.S., with occasional visits to Canada, is expected.
• No remote or hybrid options available.

Job Type: Full-timePay: $120,000.00 - $140,000.00 per yearApplication Question(s):

• What is Your Work Authorization(H1B, GC, Citizenship, etc.)? This is for a Security Clearance Requirement.

Experience:

• Java Development: 5 years (Required)
• Spring Framework (Spring Boot, Spring Security, etc.): 5 years (Required)
• DevOps and CI/CD: 5 years (Preferred)

Ability to Commute:

• Buffalo, NY 14233 (Required)

Work Location: In person