Java API Tech Lead

Job Title: Java API Tech Lead
Location: Pittsburgh, Pennsylvania
Type: Contract To Hire
Compensation: $70.00 - $10,000.00
Work Model: Onsite – onsite
Hours: 40.0
Security Clearance: Not specified

Overview

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Responsibilities

• Drive the design, development, and delivery of scalable, high-performance web applications using Java, microservices architecture, and modern frontend frameworks.
• Provide technical leadership and hands-on development expertise in Java, Spring Boot, and frontend technologies like Angular or React.
• Develop and design RESTful APIs and microservices for enterprise applications.
• Collaborate with cross-functional team members and stakeholders to ensure high-quality solution delivery.
• Mentor team members to build scalable, maintainable, and high-quality code.
• Implement best practices in CI/CD, security, and performance optimization.
• Lead architecture and roadmap discussions for backend and frontend systems.
• Ensure thorough testing, automation, and defect resolution across the stack.
• Oversee integration and ensure seamless end-to-end system functionality.

• 8–12 years of experience developing enterprise applications with Java / J2EE / Spring ecosystem.
• Strong experience in full stack development, including backend (Java, Spring Boot) and frontend (Angular, React, or similar frameworks).
• Proficiency in designing RESTful APIs and microservices architectures.
• Experience with modern UI technologies such as Angular (2+), React, or Vue.js, along with HTML5, CSS3, and JavaScript/TypeScript.
• Hands-on experience with containerization (Docker), Kubernetes, and cloud platforms (AWS/Azure/GCP).
• Knowledge of event-driven architecture using Kafka or similar systems.
• Experience with databases such as Oracle, SQL Server, or MongoDB.
• Familiarity with CI/CD pipelines and DevOps practices.
• Strong understanding of application security, OAuth/JWT, and secure coding practices.
• Proven leadership, mentoring, and team collaboration skills in Agile environments.

System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.