Apekshit Kumar
Member Of Technical Staff II at PayPal
Summary
Seasoned Java Architect with over 13 years of expertise in crafting applications from scratch, adept in all PDLC stages, and excels in building distributed, scalable systems with Agile. Eager to apply my proficiency in cutting-edge tech to enhance your team's software solutions.
Overview
14
14
years of professional experience
3
3
Languages
Work History
Member Of Technical Staff II
PayPal
04.2023 - Current
- Developed Kafka to BQ pipeline for data sync across 300+ tables, enhancing daily analytics.
- Streamlined DMP changes with a script, cutting operational overhead by 60%.
- Enabled diverse data pipelines (GCP Hive, Oracle) and onboarded 500B+ record table on time.
- Facilitated Informatica exit, decommissioning 53.2% of cores for system efficiency.
- Retired 250+ CDH pipelines and 1500+ obsolete jobs, streamlining legacy systems.
- Automated source conversion, reducing manual workload by 80% in Simba Exit initiative.
- Orchestrated migration of 250+ RADDs to BigQuery, improving data processing and error mitigation.
Member Of Technical Staff I
PayPal
04.2021 - 03.2023
- Successfully onboarded 50 data pipelines, managing 400+ job runs and 225+ million records daily, while supporting large CLOB/BLOB tables with 400+ columns.
- Enhanced Oracle data movement by reducing onboarding SLA from 1-7 days to under 1 day, and contributed to end-to-end pipeline enablement as a subject matter expert.
- Implemented cost-effective GCP Hive Snapshotting with improved schema change management, performance, and data validation, leading to the live onboarding of 3 pipelines.
- Streamlined Oracle Data Movement by automating onboarding processes, reducing effort from 5-7 days to a frictionless flow, and migrating legacy systems to modern tech stacks.
Sr. Software Engineer
PayPal
11.2018 - 08.2021
- Engineered the Bulktxnmrgd raptor batch application, significantly contributing to team development efforts.
- Developed and deployed a Kafka Daemon service, achieving a migration from the legacy yam Msg. daemon and enhancing throughput, reducing processing time from 24 hours to 7 hours.
- Established a CI/CD pipeline, ensuring high code quality with approximately 98% coverage.
- Analyzed and optimized Checkout & Beyond APIs, collaborating with engineers to alleviate performance bottlenecks.
- Improved Billing Agreement Cancellation LTA, reduced p95 time by 400ms (from 491ms to 91ms.)
- Played a pivotal role in the Vault Program and the integration of Unvetted Merchants.
- Assisted the team with LTA migration and real-time troubleshooting, conducted code reviews, and offered mentorship to peers to facilitate development.
Lead Engineer
Samsung R&D
08.2013 - 10.2018
- Engineered cutting-edge middleware for Smart Scan, enhancing Automatic Document Classification capabilities in multifunction printers (MFPs).
- Spearheaded the design and development of a robust BLE Authentication and Heartbeat protocol for MFP security and connectivity.
- Innovated in the mobile space by designing and optimizing an Android app for MFPs, significantly boosting app launch efficiency.
- Played a pivotal role in the creation of a Business Core Printing Product, integrating cloud solutions seamlessly with MFPs.
- Fortified data security by implementing SHA-256, OAuth2, AES encryption, and CSRF protection algorithms.
Software Engineer
CGI
06.2010 - 07.2013
- Developed intuitive UI components for the Watson SIPCIP project using JSP, JavaScript, HTML, and CSS.
- Leveraged Hibernate and Spring Web Flow frameworks to enhance persistence and application layer functionality.
- Integrated Ehcache for caching to optimize performance through Hibernate Second Level Cache.
- Collaborated with cross-functional teams to deliver high-quality software products on schedule.
- Implemented effective debugging strategies, resulting in fewer software defects and increased reliability.
- Proactively identified security vulnerabilities in application code, implementing necessary measures to mitigate risks.
Education
Master of Computer Applications - Computer Science And Programming
BIT Mesra
Ranchi 04.2001 -
Bachelor of Computer Applications - Computer Science And Programming
IGNOU
Muzaffarpur 04.2001 -
Skills
Programming Skills - Java SE, Rx Java, Python
Framework skills - Apache Gobblin, Apache Airflow, Spring Boot, Spring Batch
Cloud Technologies - GCP file system, BigQuery,GCP Hive
Caching Layer skills- Echache, Juno
A&A skills - JWT, OAuth2, Kerberos
Performance Optimization
System Architecture
Accomplishments
PayPal - SPOT AWARD for identifying Venmo issue and reduce MTTD.
PayPal - SPOT AWARD for Unvetted Merchant Onboarding.
Samsung - Execution Award for Smart Scan.
Samsung - SPOT AWARD for LOCALIZER.
CGI - CORONA AWARD for TMI
Hobbies
Cooking, Gardening, Walkathon
Timeline
Member Of Technical Staff II
PayPal
04.2023 - Current
Member Of Technical Staff I
PayPal
04.2021 - 03.2023
Sr. Software Engineer
PayPal
11.2018 - 08.2021
Lead Engineer
Samsung R&D
08.2013 - 10.2018
Software Engineer
CGI
06.2010 - 07.2013
Master of Computer Applications - Computer Science And Programming
BIT Mesra
04.2001 -
Bachelor of Computer Applications - Computer Science And Programming
IGNOU
04.2001 -