Dec 2020 – Sep 2021 · 9 mos

• Citi TTS Channels Digital Transformation – NextGen Platform
• Worked on distributed, scalable, and resilient architecture to support Data Replication of large data volumes.
• Worked on Oracle GoldenGate for high TPS systems with monthly processing of 100M, near real-time data replication. Used Big DataAdaptors – Apache Kafka, for change capture from Oracle GoldenGate trail to a Kafka topic. Proposed and implemented initial load, and change synchronization for around 150+ SQL tables. Customized Operation/Row handling using Avro schema, used data pump operation to accommodate new column addition at source SQL tables and made use of LogDump utility to debug issues with trail files. Tuned KafkaHandler for real-time and high-availability data transfer, many-to-one SQL table-Kafka topic mappings, and even data distribution using keyMappingTemplate
• Identified, analyzed, designed, and developed re-usable components for micro-services
• architecture. These modules are used as plug and play templates while developing new micro-
• services. Helped to reduce boilerplate code for new Micro-service development as it can be built
• and deployed in no time.
• Used Apache Kafka for publishing, storing, and streaming data to cater to distributed system architecture. Tuned Kafka for high throughput, and low latency.
• Written async schedulers to solve problems in replicated data.
• Developed Service proxy to route API calls using Spring Cloud Gateway. This is one point filter, authentication, authorization, and call routing

May 2018 – Nov 2020 · 2 yrs 6 mos

• Citi TTS Channels Digital Transformation – NextGen Platform
• CitiDirect NextGen is enterprise treasure and trade solutions web-based portal to initiate, track,
• and complete payments for large enterprises.
• Migrated monolith application to Micro-services architecture using domain-driven design (DDD)
• Digitally transformed legacy business applications into Micro-services architecture by using Spring Boot, Java 8, MongoDB, Apache Kafka, Docker, and Kubernetes
• Migrated SQL tables/queries into the NoSql. Created NoSql model to accommodate related SQL tables in one collection. Conversion of stored procedures and complex SQL queries into MQL was supported by aggregation pipelines, and views on NoSql.
• Designed and developed Micro-services using bounded context to solve Domain and sub-domain
• problems
• Implemented a centralized, high performance caching mechanism using Couchbase
• Incorporated CICD support in Micro-services to make it available 24/7 using PaaS (Platform as a
• Service) Open Shift which is built on Docker and Kubernetes
• Developed certified and fully qualified tested code with the help of Junit 5, Mockito. Maintained
• code coverage > 90% and high-quality standards using SonarQube

Sep 2017 – Apr 2018 · 7 mos

• Project - MTE for Mastercard
• MTE is a Mastercard Test Emulator which helps onboard new clients on the Mastercard
• network. Once on-boarded, the emulator works as an Intelligent Client to simulate production-like
• responses to bank requests to initiate a dispute.
• Analyzed dispute cycle and incorporated dispute scenarios in the test emulator for pre-production dispute validation
• Designed a rule-based dispute validator to reduce overhead on production environment

Jan 2014 – Sep 2017 · 3 yrs 8 mos · Pune Area, India

• Project - GatewayNextGen for BNYMellon
• GatewayNextGen is an equity sales and trading application used by BNY Mellon traders to sell/buy
• trades from multiple desks using multiple trading platforms.
• Being part of the implementation team, worked on Restful API development to enable user/client interactions with the real-time/historical trading data.
• Created a rule engine that was driven by RDBS to validate trades data
• Worked on currency convertor to support trades across currencies