Job Type: Contract

Job Category: IT

Job Description

Job Title: Senior Java Backend Engineer

Location: Austin, TX
Employment Type: Contract
Experience Required: 12+ Years

Job Description

We are seeking a highly experienced Senior Java Backend Engineer with a strong background in building scalable, high-performance backend systems. The ideal candidate will have 12+ years of overall experience, including 10+ years of hands-on Java development, 5+ years of MongoDB expertise, and practical exposure to modern AI-assisted development tools like RooCode and Claude.

The engineer will play a key role in designing, developing, optimizing, and integrating backend services for enterprise-grade applications.

Responsibilities

• Design, develop, and maintain robust backend services using Java (Core Java, Spring Boot, Microservices).
• Build and optimize MongoDB data models, queries, and indexing strategies.
• Architect and implement scalable APIs and distributed systems.
• Work closely with cross-functional teams to deliver high-quality software solutions.
• Use AI coding assistants (e.g., RooCode, Claude) to improve productivity, code quality, and development workflows.
• Perform code reviews, troubleshooting, and performance tuning.
• Ensure high standards of security, reliability, and scalability in all backend components.
• Participate in Agile/Scrum ceremonies and contribute to continuous improvement.

Must-Have Skills

• 12+ years of overall software development experience.
• 10+ years of hands-on Java experience (Core Java, Spring, Spring Boot, Microservices).
• 5+ years of experience with MongoDB — schema design, indexing, aggregation, performance tuning.
• Proven experience in designing REST APIs and microservices architecture.
• Hands-on experience using AI developer tools, especially RooCode and Claude (prompting, code generation, refactoring).
• Strong understanding of multithreading, concurrency, and design patterns.
• Solid experience with CI/CD pipelines, Git, and cloud environments (AWS/GCP/Azure).
• Strong problem-solving, debugging, and system design capabilities.

Required Skills