Key Accomplishments

• Microservices Development

Built scalable, Java-based microservices for reporting use cases, including RESTful APIs for

ad-hoc and scheduled reports.

Designed versioned API endpoints with robust documentation for easy integration and maintenance.

Enhanced security with JWT-based authentication and authorization to mitigate risks.

• Distributed Caching

Implemented a high-performance distributed caching solution to optimize low-latency data access for AdServing.

• System Design for Scalability

Designed architectures to efficiently handle high traffic and large datasets with a focus on scalability.

Applied load balancing, caching strategies, and message queues to enhance

reliability and throughput.

• Data Engineering

Directed the design and deployment of a scalable data lake for streamlined storage

and retrieval of large datasets.

Developed ETL pipelines using Apache Spark on EMR, AWS Glue, and Delta Lake to process

terabytes of data efficiently.

Ensured reliability and timeliness in data operations by orchestrating workflows with Apache Airflow.

• Cloud Infrastructure

Built and managed AWS-based infrastructure, utilizing S3 for storage, EC2 for compute, and

Lambda for serverless data processing.

Achieved an 80% improvement in query performance by leveraging advanced indexing,

partitioning, and caching techniques.

• Automation & Reporting

Automated report generation and delivery through scheduled jobs and background processes,

significantly improving efficiency.

• Collaboration and Security

Collaborated with stakeholders to gather requirements and deliver custom reporting solutions

aligned with business needs.

• Enablement

Conducted training sessions and developed documentation to empower teams in utilizing

reporting and data infrastructure effectively.

Email Notification service- a service to be used by the applications to notify users about the usage, statistics, break down, and run time exceptions. Built a email notification service using Java, REST API, Spring Boot, JPA, Hibernate and SMTP server.

• Managing the team as a shift leader

• Assisted end users on Mac, Linux and Win OS with routine follow ups and achieved 99.99% SLA

• Design and maintain the Access Database, as a backup, used for checking out laptops

This reduced the paper work, time, and human resources involved in the process by 90%

• Provide technical support on commonly used applications, smartphones, tablets, Android & iOS

devices and troubleshot LAN/WAN, DNS, Desktop/laptops, deliver network access to systems

• Perform ghosting to clean up the systems and re-image them

• Assist the students with software installations and any other technical issues

Client: Leading Investment Bank

Domain: Financial Services

Worked at zero distance from the client on the following projects-

♦ Web Application Development

Involved in full SDLC of building a transaction amendment toot for the client. Was responsible in developing key modules of the application using the following technologies-

Front end - HTML, CSS, AngularJS, Restful web services

Back end - Core Java, Spring DAO, Hibernate, SQL, Oracle database

Developed a web portal to give the visual representation of the data transfer between servers

using Angular JS, HTML, CSS.

♦ Automation

Shell scripts

• Developed scripts to automate manual tasks and production accesses

Built utilities to copy data from one type of database to another

Tested and deployed them onto CSAW tool.

Java utilities

• Built a generic utility to test DB/Unix server connectivity

• Built a utility to convert a files from .properties to .yaml

These reduced operational risk for the client by 50%

♦ Automation of UI Testing

Integrated Selenium UI automation framework for large applications thus making testing dynamic, fast. Automation of JAVA applications using JUnit, testNG, and Mockito. This also reduced human resources

♦ Tools used

Jenkins for deployment, JIRA used for issue tracking, SVN revision control system, gradle for build

Autosys, cron for process scheduling.