Senior Backend Java Developer (Onsite)

Cognizant•Alpharetta, GA

10d•Onsite

About The Position

Our practice is seeking a highly qualified Senior Backend Java Developer with at least 8+ years’ experience building impactful, scalable, enterprise applications. Our Developers have a passion for high-quality, reliable, and maintainable code. You will work side by side with product managers, designers, and clients, making decisions together to quickly deliver valuable working software to clients and their users. Our developers are agile and retrospective, and not afraid to identify what we’re doing wrong, so we can fix it, so we can improve on it. Above all, we judge success by the success of our team and the happiness of our customers. Work model description At Cognizant, we strive to provide flexibility wherever possible, and we are here to support a healthy work-life balance though our various wellbeing programs. Based on this role’s business requirements, this is an onsite position requiring 5 days a week in a client or Cognizant office in Alpharetta , GA. Work Authorization: Candidate must be legally authorized to work in the United States without the need for employer sponsorship, now or at any time in the future In this role, you will: Lead the design and implementation of scalable microservices architectures to ensure performance, reliability, and availability Design, develop, and deploy RESTful APIs to enable seamless integration across systems and applications Provide technical leadership and mentorship, guiding team members on best practices, design patterns, and code quality Collaborate with business and technical stakeholders to translate functional requirements into effective technical solutions Integrate Kafka for event‑driven architectures, real‑time streaming, and asynchronous processing Develop and maintain backend applications using Spring Boot, Spring Core, and Core Java Work with Oracle databases and PL/SQL to ensure data integrity, performance optimization, and efficient query design Conduct code reviews and enforce engineering standards and best practices Monitor application performance, troubleshoot issues, and implement proactive optimizations Maintain accurate technical documentation for system architecture, APIs, and processes

Requirements

8+ years of solid Java experience.
Strong experience in Core Java with solid understanding of object‑oriented design and multithreading
Hands‑on expertise with Spring Boot, Spring Core, microservices, and RESTful web services
Proven experience with Kafka or similar event‑streaming platforms
Strong knowledge of Oracle databases and PL/SQL, including performance tuning
Experience designing and supporting high‑availability, scalable backend systems
Ability to lead technical discussions, mentor team members, and work effectively in a fast‑paced environment
Bachelor’s degree in Computer Science, Engineering, or a related field

Nice To Haves

Domain experience in Cards and Payments and/or Asset and Wealth Management
Experience working in large enterprise or regulated environments
Exposure to cloud‑native architectures and DevOps practices
Java, Spring, or Microservices certifications
Strong communication skills and ability to engage technical and non‑technical stakeholders

Responsibilities

8+ years of solid Java experience.
Strong experience in Core Java with solid understanding of object‑oriented design and multithreading
Hands‑on expertise with Spring Boot, Spring Core, microservices, and RESTful web services
Proven experience with Kafka or similar event‑streaming platforms
Strong knowledge of Oracle databases and PL/SQL, including performance tuning
Experience designing and supporting high‑availability, scalable backend systems
Ability to lead technical discussions, mentor team members, and work effectively in a fast‑paced environment
Bachelor’s degree in Computer Science, Engineering, or a related field