Rajasekar Nagarajan

• Designed and led the development of Crystal, a demand forecasting platform delivering 53-week forecasts across all item-store combinations.
• Collaborated closely with Product and Business teams to translate high-level features into technical specifications, ensuring alignment with business goals.
• Architected scalable UI components and RESTful backend APIs, adhering to best practices for security, performance, and maintainability.
• Ensured seamless integration with upstream and downstream systems, maintaining high availability and data consistency for business-critical operations.
• Drove performance optimization across the stack—including backend services, frontend UI, and data pipelines—resulting in measurable efficiency improvements.
• Conducted rigorous code reviews for frontend and backend modules, ensuring adherence to coding standards, architectural guidelines, and functional acceptance criteria.
• Acted as a technical mentor, sharing product and domain knowledge with team members and guiding them through system behavior and technical solutions.
• Resolved production issues within defined SLAs and implemented change requests in coordination with QA and release teams.

• Working closely with the development of highly performance oriented task of Planning Phase of Transaction system.
• Developed API for reducing the loads in SLAs using the high level architecture with high performance.
• Have experiences in developing high level and low level design of a system to achieve the goal.
• Owning a component PDLS (PaymentDataLoadServ) in PayPal with all the data loads of various participants in every use case of transactions done across the global market.

• Expertise in developing reliable, robust, reusable code in development of all software products.
• Involved in all the phases of software development life cycle phases.
• Expertise is analyzing the requirement and new product feature enhancement suggestions in the customer point of view.
• Involved in performance improvements, documentation process.
• Developed and maintained robust Java code stubs for ERP based applications.
• Collaborated with japanese clients and fixed multiple requirements with good results.
• Worked in Agile methodology to meet the customer requirements.
• Quick learner to understand the concepts and gave solution to problems within a short span of time.
• Worked in collaboration with testing team and CI teams to come up with good quality in delivery of the product.

• IFDM project deals with the customer data to migrate with new changes and removing the deprecated data with highly secure way of processing methods.
• Involved in documentation and data related process to achieve the goal of data migration.
• Technologies involved in this project are Java, Spring Boot,Spring Batch, Oracle, Js.

Additional Contribution to IFDM project:-

• As a passionate developer with a goal of satisfying the client requirement within a short span of time, proposed and developed tools to automate the process of creating the new data based on the settings.
• Technologies used in the tools are Angular 6, Material Angular, Bootstrap, Java 8, Spring Boot, Hibernate, MYSQL DB, GIT, Jenkins, REST API.
• This tool is approved as a new project by the Project Manager and let a team of 5 members under this project.

• The product COMPANY is a highly customizable, reliable, robust ERP based web application to ease the HR related activities of Corporate Organizations developed using Java, Spring Framework, HTML, XML, CSS, Oracle, Prototypic JS with the CJK Framework.
• Worked in HR Core module of the product.

Achievements

• Got recognition from client through mail and good hike for the quality of work done.