Senior Java API Engineer

Senior Java API Engineer

Location: Remote U.S. Only
Rate: $65/hour
Industry: Banking, Financial Services, and Insurance (BFSI)
Interview Process: Video Interview 2 Rounds
Client: Client details will be disclosed during the interview process.

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Our client is seeking a Senior Java API Engineer to support and enhance a REST-based API platform powering native iOS and Android mobile applications.

This role focuses on maintaining and improving backend services built with Java and the Micronaut framework within an Azure-hosted environment. The ideal candidate will have strong backend engineering expertise, sound technical judgment, and the ability to work independently in a fast-paced consulting environment.

The Senior Java API Engineer will play a critical role in ensuring the reliability, scalability, performance, and continued evolution of client-facing mobile application services.

Responsibilities & Duties

• Maintain and enhance Java-based REST APIs supporting native iOS and Android mobile applications.
• Develop new backend features and integrations using Java and Micronaut, with a focus on reliability, scalability, and performance.
• Troubleshoot and resolve production issues across application, API, and infrastructure layers.
• Collaborate with mobile developers, QA engineers, project managers, and client stakeholders to deliver solutions aligned with business requirements.
• Participate in architecture, system design, and technical discussions related to backend services and API development.
• Monitor application health, identify performance bottlenecks, and implement improvements to enhance system stability.
• Collaborate with client engineering teams on integrations involving Micronaut-based backend services and enterprise middleware platforms.
• Contribute to CI/CD processes, deployment activities, and operational best practices within an Azure-hosted environment.
• Participate in on-call support rotations and assist with incident response and root cause analysis as needed.
• Conduct code reviews and provide technical mentorship to other developers.
• Follow secure development and engineering best practices, particularly in regulated BFSI environments.

Requirements

• 5+ years of professional software engineering experience, with a strong focus on Java.
• Hands-on experience with the Micronaut framework or similar modern Java frameworks such as Spring Boot.
• Proven experience developing and maintaining RESTful APIs in enterprise or production environments.
• Experience working with cloud-hosted applications; Microsoft Azure experience is strongly preferred.
• Strong understanding of backend application architecture, API security, authentication, authorization, and integration patterns.
• Familiarity with CI/CD pipelines, source control systems, and modern software development practices.
• Experience working with cross-functional teams in Agile or iterative development environments.
• Comfortable working in environments where AI-assisted coding tools may be restricted due to client security, compliance, or data-protection requirements.
• Strong communication skills, with the ability to effectively collaborate with both technical and non-technical stakeholders.
• Ability to work independently, manage multiple priorities, and operate effectively in a consulting or client-services environment.
• U.S. Citizenship and current U.S. residency are required.

Preferred Qualifications

• Experience supporting backend services for native mobile applications.
• Experience mentoring developers and providing technical guidance.
• Experience participating in architecture and technical design discussions.
• Experience working within banking, financial services, insurance, or other highly regulated environments.

The ideal candidate is a hands-on backend engineer who can take ownership of API development and production support while collaborating effectively with engineering and business teams. Strong problem-solving skills, attention to reliability and performance, and the ability to operate independently are essential for success in this role.