Vengatesan S

• Part of payments engineering and compliance team and takes care of all compliance related challenges and mandates to avoid legal issues and protect the auth rate
• Took end to end responsibilities while delivering projects, starting from requirement gathering, HLD and LLD design, code implementation, functional testing to deployment, etc ..
• Helped teammates with PR reviews and KT sessions
• Implemented different cache mechanism within components and reduced latency up to 15ms and unnecessary external calls at transaction level
• Kept the service availability nearly 99% through fail fast technologies such as Resiliency and redundancy support for few services
• Extensively worked in creating monitoring Dashboards and visualization tools in KIBANA, Datadog, Splunk
• Created different tools to explore live payment data which is helpful in data analytics which in turn helped in transaction approval rates and focus area to improve the business outcome
• Explored and did a POC on event driven approach and shared the knowledge across teams

Tech: Spring Boot, Microservices, JAX-RS , Apache Kafka, AI tools, Oracle and PostgreSQL

Working for PayPal Client

• Migrated tenant and unbranded traffics to PayPal payment Gateway to process it in faster and secure way
• Learnt domain knowledge extensively in payments like Authorization, VOID, Sale, Reversal, Online refund, Settlement,etc..
• Got an opportunity to explore rx-netty, reactor netty, Multithreading, Asynchronous programming, Resiliency frameworks and achieved business goals
• Designed and implemented simulation logic which was helpful in mimicking the third party responses for nearly 10 services
• Performance testing and monitoring through tools like JMeter

Tech: Spring Boot, JAX-RS , Apache JMeter , Kafka, Jacoco

ERP related web application

Worked under Works Applications Co., Ltd. designed product AI WORKS , which is AI powered ERP system.

Role: Developer

HR Module, Account Module & Supply Chain Management (SCM)

Product beneficiary: SONY group, Toyota Administa, MITSUBA, Nissin group, Monex group , AIST Japan and Starbucks

• Employee Task management , Access track application and Attendance management
• General purchase management and Asset management
• Insurance and Allowances management
• Goods purchase management and Material availability management

Tech: Spring MVC, JSP, Hibernate (ORM),Oracle DB

Rest API creation

Role: Developer and business analyst for specific ERP module

• API creation for AI based ERP product (HUE)
• Server monitoring using Zabbix tool

Tech: Spring boot, Zabbix

Enterprise Mobility management (EMM):

Android Device Management (Managing/Controlling the device remotely) - for SOFTBANK

Role: Developer

• Developed Rest APIs and micro services to interact with Google API which will control the mobile application
• Explored GCP's message exchanging service and designed asynchronous system
• API documentation creation using Swagger
• Audit log and Application log monitoring using Splunk

Tech: Spring cloud, Spring Boot, Microservices,Rest API, Hibernate, React js, Swagger