vaibhav tyagi

SUMMARY

• Architect with 13+ years of experience in application designing and code implementations. 
• Expertise in designing and implementing microservices based cloud native distributed applications using Spring boot and Docker containers.
• Extensive work experience on high performance, higher traffic based transactional systems to stabilize them for performance and better system utilization. 
• Experience in REST API designing, modeling and implementation. 
• Years of experience working with product-based companies in India in telecom/Fintech space.
• Knowledge of microservice designs patterns and principles and experience using them for better design.
• Good exposure to POC for new open-source libraries and then implementation of them.
• Demonstrated mastery in evaluating requirements from business and integrating third party services to the application.
• Good exposure on design and develop high-volume, low-latency applications for mission-critical systems, delivering high-availability and performance.

KEY SKILLS & ABILITIES

• Microservices Architect/REST API designing for scale.
• Production migration from monolith/SOA to microservices architecture. 
• Cloud native distributed system design and architecture using cloud native design principles.
• Agile Development (Sprints), DDD designing, SOLID Principle, Code review, Code Analysis.
• System performance engineering.
• Java Spring Boot /Spring Cloud based development from scratch.
• Team management and team leadership
• Experience of designing highly available system over microservice architecture

WORK EXPERIENCE

Technical Architect, Paytm Payment Bank Limited 

 March 2022 - Current

• Involved in KYC system redesign to remove data inconsistency issues and provide better throughput.
• Implementing correct microservice patterns which is required to develop better products which are easily maintainable. 
• Implementation of CDC and transaction outbox for transaction getting float to AML system.
• Tradeoff between availability and data consistency while designing the system.
• Mentoring team leads and engineers for better design and code.

Senior Technical Lead - Architect, mCarbon Tech Innovation Pvt Ltd Noida 

May 2016 – March 2022

• Involved in architecting end to end data lake from scratch for data analytics of user’s profile using open-source Apache Kafka framework to support 500K ingestion TPS from upstream integration.
• Lead the development & successful migrations of two legacy products to microservice architecture. 
• Lead the development and design of Subscription based application called subscription engine from scratch.
• Team mentoring

Technical Lead - Architect, mCarbon Tech Innovation Pvt. Ltd. Noida 

May 2015 – Apr 2016

• Stabilizing Missed Call alerts product having 50K TPS PAN India Load after implementing correct design patterns and reduce the hardware cost as well.
• Responsible for code analysis, system design, impediment resolution and technical estimates for sprint stories.
• Redesigned System level managed APIs in system to expose system capabilities for third party smooth integration.
• Provide solutions using Spring boot/Spring Cloud application using distributed system paradigm. 

Lead Engineer, Comviva Technologies Ltd Gurugram 

Mar, Jan 2014 – Apr 2015

• Worked as lead engineer in CRBT and USSD team.
• Involved in development of some products and features from scratch.
• POC of open-source frameworks for system improvement.
• Shel scripting and system monitoring automation for HA.

Senior Software Engineer, Comviva Technologies Ltd Gurugram 

Mar, Jan 2013 – Dec 2013

• Worked on CRBT (Hello Tune) next gen release for Airtel Africa.
• Gain experience of service migration from other vendor to organization platform.
• Worked on Subscription Engine System of CRBT system to manage customer life cycles. 

Software Engineer, Comviva Technologies Ltd Gurugram 

Mar, Dec 2010 – Dec 2012

• Worked on CRBT (Hello Tune) product of organization as a software developer with C and core java as development Language.
• Major focus was on Hello Tune playing part of system, fixing system issue related to database connections and latency related issue to fetch user’s profile from database within few milliseconds.
• Redeveloped some modules in Core java application using multithreading for scaling up.

Associate Software Engineer, mCarbon Tech Innovation Pvt Ltd Noida

Aug 2009 – Dec 2010

• Involved in system unit testing and changes in existing system.
• TCP-IP/UDP socket programming for inter process communication in C language.
• Core java application development.

EDUCATION

• Master of Computer Application (MCA) – U.P.T.U University (Galgotia College Greater Noida) – 2009 
• Bachelor of Science – Gurukul Kangari Vishvidhyalya – 2006
• Intermediate - H.R.A Haridwar PCM -2003
• High School - H.R.A Haridwar PCM -2001