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Rakesh Kumar

@rakeshkumar22

Technical & Solution Architect at AT&T India who modernized a legacy platform into microservices and improved operational efficiency by 40%.

India

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At AT&T India, I provided solution architecture for modernizing a legacy monolith into a modular microservices ecosystem, improving operational efficiency by 40%. I also designed an event-driven Kafka workflow for appointment scheduling and real-time technician information, contributing to a 70% improvement in customer satisfaction.

At Accellor Software Pvt. Ltd., I contributed backend engineering to Arkestro, a procurement management platform. I implemented Stream.io-based buyer and supplier channels and developed asynchronous processing with Node.js, BullMQ, and Redis.

Earlier, at Nfinity Solutions Pvt. Ltd., I worked on insurance calculations using Apache Spark and Scala, and designed a transaction investigation solution with Ruby on Rails and Neo4j. Across my career, I’ve worked on enterprise architecture, application modernization, cloud adoption, and engineering delivery.

Experience

Work history, roles, and key accomplishments

Technical Lead L5

Accellor Software Pvt. Ltd.

Nov 2025 - Mar 2026 (4 months)

Led backend engineering for a procurement platform, implementing real-time collaboration with Stream.io and scalable async processing with Node.js, BullMQ, and Redis. Integrated GraphQL, PostgreSQL, and third-party services, and drove performance improvements using Kubernetes, AWS, and observability tools.

NodeJS BullMQ Redis GraphQL PostgreSQL Kubernetes AWS Datadog Slack Sendgrid LaunchDarkly PagerDuty GitHub Co Pilot Claude

Technical Specialist – Solution Architecture

AT&T India Pvt. Ltd.

Dec 2018 - Jun 2025 (6 years 6 months)

Provided solution architecture for enterprise application modernization, transitioning a legacy monolith to microservices using MEAN stack and Spring Boot, improving operational efficiency by 40%. Designed event-driven workflows with Kafka, architected cloud-based solutions with MERN stack and AI capabilities, and led a 5-member team.

MEAN stack Spring Boot Kafka Azure Azure DevOps Kubernetes Docker Jenkins NodeJS React Angular MongoDB Oracle Python GraphQL Next.js Flask NLP LLM Generative AI

Senior Software Engineer

Nfinity Solutions Pvt. Ltd.

Oct 2016 - Dec 2018 (2 years 2 months)

Led engineering for a high-volume insurance calculation platform using Apache Spark and Scala, improving operational efficiency by 60%. Designed graph-based transaction investigation and fraud-detection portals using Ruby on Rails, Neo4j, and Zend Framework.

Apache Spark Scala Ruby on Rails Neo4j Zend Framework Perl Python Java RSpec Chef

Senior Technical Lead

Mango Concept LLC (CSI Technology Services Pvt. Ltd.)

May 2015 - Oct 2016 (1 year 5 months)

Took technical ownership of backend capabilities for affiliate marketing and e-commerce platforms, designing modules and database structures that improved data management efficiency by 30%. Integrated external commerce APIs and implemented order management and authentication workflows.

Drupal MVC jQuery API Integration Authentication Ecommerce

Technical Lead

Prolifics Corporation Ltd.

Oct 2013 - May 2015 (1 year 7 months)

Led delivery of a cross-device document management platform, improving accessibility by 10% and document tracking efficiency by 30%. Developed Django/PostgreSQL internal applications and standardized responsive UI with Bootstrap.

Django PostgreSQL Bootstrap Google Analytics Document Management

Application Engineer

Global Pueblo Solutions, LLC (GP Sourcing Pvt. Ltd.)

May 2010 - Oct 2013 (3 years 5 months)

Developed and enhanced Drupal-based education platforms, improving user engagement by 40% through enhanced search and content capabilities. Executed Drupal upgrades and extended platform to mobile devices using jQuery Mobile.

Drupal JQuery Mobile Janrain Engage PHP MySQL