Hi, I'm Subbarayudu Chakali 👋

Full Stack · DevSecOps · Multi-Cloud · Machine Learning

Experienced polyglot Full Stack Engineer with 5+ years building and deploying enterprise applications across multi-cloud platforms — especially Amazon Web Services (AWS) and Google Cloud Platform (GCP). Actively using generative-AI tools like GitHub Copilot and AWS CodeWhisperer to boost coding efficiency, with a growing interest in machine learning and applying AI-driven insights to improve application functionality and performance.

💼 Product Specialist — Technical at Cognizant, based in India.
🎓 Pursuing M.Tech in Artificial Intelligence & Machine Learning at BITS Pilani (WILP).
🌱 Learning Generative AI, Prompt Engineering and Machine Learning.
Subbarayudu Chakali

Experience

Product Specialist — Technical · Cognizant January 2023 — Present
The Coca-Cola Company · CDK + DevOps Engineer Sep 2025 — Present
  • Designed and implemented a complete DevOps lifecycle for building and deploying diverse applications on Google Cloud Platform (GCP).
  • Redesigned and optimized CI/CD pipelines to support a seamless migration from AWS to GCP, ensuring scalability and reliability.
  • Led the Jenkins migration from AWS to GCP — infrastructure setup, shared pipeline files, configuration management, and job orchestration.
  • Integrated security & quality gates by embedding SAST, DAST, and multiple testing frameworks into the CI/CD pipeline.
  • Prepared a comprehensive AWS application inventory by analysing CDK + JavaScript code to support accurate infrastructure provisioning.
BNY Mellon Corporation · Java Backend Developer Mar 2025 — Sep 2025
  • Migrated legacy DB2 stored procedures to Oracle SQL and implemented Java backend services using MyBatis for efficient query execution and database interaction.
Liberty Mutual Insurance Company · Jr Software Engineer Jan 2023 — Feb 2025
  • Independently executed an AWS account migration and PostgreSQL RDS migration — infrastructure setup, data transfer, and validation — while ensuring seamless integration with custom permission boundaries and security compliance.
Programmer Analyst · Cognizant Jan 2022 — Dec 2022
Liberty Mutual Insurance Company
  • New Relic to Datadog transition.
  • Java Full Stack Engineer Accreditation program.
Programmer Analyst Trainee · Cognizant Dec 2020 — Dec 2021
Liberty Mutual Insurance Company · Java Full Stack Engineer Training program
  • Duck Creek Claims Configuration and AWS Cloud, following Agile development.
  • Team Lead of the Full Stack Engineer training batch.

Technical Skills

Programming Languages

JavaPython

Machine Learning

Natural Language Processing Deep Learning Prompt Engineering

Cloud & Platforms

Amazon Web Services (AWS) Google Cloud Platform Microsoft Azure Microsoft Power Platform

DevSecOps

GitGitHub GitLabBitbucket JenkinsBamboo GitHub ActionsSplunk CloudFormationServerless CDKTerraform DatadogDocker Maven

Databases

MySQLPostgreSQL DynamoDBMongoDB CloudSQL

Frameworks

Spring BootJUnit5 BootstrapReact Serverless

Tools

PostmanSlack RemedyJIRA ConfluenceStreamlit

AI Assistants

OpenAIClaude GitHub CopilotAWS CodeWhisperer

Work & Projects

RAGen — Conversational Chatbot 🏆 Hackathon 1st Runner-up
  • Retrieval Augmented Generation (RAG) to improve response accuracy.
  • Personalized search results and responses for each user.
  • Enterprise connectors for varied data sources — SharePoint, OneDrive, Confluence, databases, websites.
  • Generative AI model for handling fallback intents.
  • Natural Language Understanding (NLU) and Automatic Speech Recognition (ASR) engines.
  • Scalability, version support, and continuous learning & improvement.
Next Gen Intelligent Document Processing 🏆 Hackathon Winner
  • Layout-aware document classification model for native documents.
  • Used the Jurassic Ultra-v1 LLM from AI21 Labs to classify plaintext & native docs.
  • PII data redaction and Human-in-the-Loop (HITL) workflow integration.
  • Data lake built on S3 & DynamoDB.
  • Textract queries and Adapters (custom queries) used for Q&A.
  • Chains, prompt templates, and document loaders from the LangChain framework.
AWS Account Migration Cloud · IaC
Insurance Platform Services
  • Migrated Insurance Platform Services from one AWS account to another.
  • Infrastructure recreation (IaC using CDK).
  • CNAME, Fargate, server certificates, and KMS keys.
  • S3 data transfer (~4k objects, ~5 GB in production).
  • Cross-account access for SQS and the database.
  • Modified build and deployment pipelines.
  • Database migration — snapshotting, secrets sharing, replication, and restoration.
Use Cases Developed
  • Fake News Classification using the Naïve Bayes machine-learning algorithm.
  • Audit Management System — full-stack application.
  • Tweet Application — full-stack application.
  • Test data generator — CSV files for machine-learning tasks.
  • Simple webpage using GitHub Actions, GitHub Pages, and AWS Route 53 for a custom domain.
  • DevOps Foundation use case — full CI/CD workflow with freestyle & pipeline jobs, SonarQube and JFrog integration.

Badges

AWS Certified AI Practitioner (Early Adopter) AWS Knowledge: Cloud Essentials AWS Partner: Generative AI Essentials Building GenAI Apps with MongoDB Deploying & Evaluating GenAI Apps with MongoDB Code Companion: GitHub Copilot Code Companion: Q Developer (Java) Code Companion: Q Developer (Python) GenAI Fundamentals Project Pivot Fundamentals Prompt Engineering (Java) Prompt Engineering Site Reliability Engineering

Education

M.Tech — Artificial Intelligence & Machine Learning In Progress
Birla Institute of Technology and Sciences (BITS) Pilani — WILP
B.Tech — Computer Science & Engineering 2016 — 2020 · 8.23 CGPA
Vaagdevi Institute of Technology and Sciences (VITS), Proddutur
Intermediate (MPC) 2014 — 2016 · 89%
Govt Junior College for Boys, Jammalamadugu
SSC 2014 · 8.2 CGPA
PR Govt High School, Jammalamadugu

Highlights & Soft Skills

  • Won 1st prize at ASHV-2K19 (MITS, Madanapalli) for a presentation on “Making Recommendation Systems” — collaborative, item- and product-based filtering, ranking, and related concepts.
  • Won 1st prize at SIGMA-2K18 (SREC, Kurnool) for a presentation on the “Human in the Loop (HITL)” concept and its importance in AI & ML systems.
  • Successfully managed a team during training, ensuring effective collaboration and achieving project goals.
  • Honed adaptability through volunteering (NSS, NCC, and Cognizant Outreach) — comfortable navigating new environments and diverse groups with confidence and flexibility.
  • Demonstrated strong problem-solving abilities, resolving complex challenges and ensuring defect-free delivery.
  • Exhibited meticulous attention to detail while managing sensitive tasks amid complex infrastructure challenges.