Balu Praveen Datty

All Companies

My Experience

Jan 2025 - Present

PepsiCo

IAM, Security

Lead Full-stack Engineer / Architect / Sr Analyst

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Java/J2EE
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Spring Boot
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Hibernate
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Git
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SQL
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RESTful WebServices
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OAuth2
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Okta
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IAM
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JavaScript
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ReactJS
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NodeJS
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Azure
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Apr 2022 - Jan 2025

EMIS Health India (Optum - UHG)

Research & Meds Assistant

SSDE / Cloud Developer / DevOps

Activities

Architected and implemented scalable solutions to optimize clinical trial processes across the UK, enhancing efficiency and innovation.
Enabled EMIS to secure £200M in potential business expansion through the successful delivery of product releases.
Designed and deployed Spring Boot-based microservices on AWS ECS, leveraging auto-scaling based on CPU and memory utilization to ensure high availability and performance.
Developed event-driven solutions using AWS SQS and Spring Batch to automate background tasks, including patient communications via AWS SNS.
Built and deployed React and Next.js front-end applications using Netlify, integrated with CloudFront CDN for improved global content delivery and performance.
Managed cloud infrastructure using AWS CDK, implementing fully automated CI/CD pipelines across development, testing, and production environments.
Applied Domain-Driven Design (DDD) principles, maintaining clean architecture, high-quality code, robust testing, and comprehensive documentation.
Adopted SAFe Agile methodologies within Agile Release Trains (ART) to facilitate alignment, collaboration, and timely delivery across EMIS analytics teams.
Owned the full product lifecycle, delivering technical solutions that optimized system performance, reduced costs, and improved overall reliability.
Led a cross-functional team of eight engineers, promoting collaboration, code quality, and technical excellence across all stages of development.

KPIs

Optimized AWS Glue jobs for data ingestion, achieving cost savings of $900/day through asynchronous data processing using an S3 landing zone.
Created secondary storage on the data lake, resulting in a 70% speed improvement and a 50% reduction in compute costs.
Implemented an efficient rollback strategy, enabling a 30-minute quick recovery in case of disaster.
Enhanced API performance by 90%, reducing the number of API calls, and improved scalability to handle 4X burst loads.
Conducted performance profiling on all APIs to optimize scalability and ensure reliability during high-traffic periods.
Established secure inter-VPC connectivity with endpoint services to enable secure communication between two separate AWS accounts.
Migrated all release pipelines from AWS to GitHub Actions workflows, leading to savings of $2000 per month.
Implemented CloudFront and Lambda@Edge authentication for API endpoints to enforce multi-layered security.
Integrated RDS with the data lake using a proxy setup to enhance data accessibility and scalability.

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Java/J2EE
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Spring Boot
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Infrastructure as code (IaC)
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Amazon Web Services (AWS)
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Hibernate
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Git
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CDK
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SQL
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RESTful WebServices
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DevOps
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Kotlin
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OAuth2
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Okta
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IAM
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Cognito
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GitHub Actions
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Python
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JavaScript
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ReactJS
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NodeJS
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Apr 2020 - Mar 2022

Health Passport

Consultant

Activities

Developed a solution for users’ digital Health Passport to track vaccination details, symptoms, etc. for international travelers during Covid 19.
The solution enabled travelers (both inbound and outbound in the UK) to get their medical records and vaccination status verified electronically.
The tech stack includes SPA Web portals powered by React, EMIS’s UI Kit, etc., and backend API servers powered by Kotlin (Java), Springboot, and JPA Hibernate.
User consents to share medical records being handled by Hyperledger Fabric Blockchain
Authentication integrated with IAM as service provider Okta
Used Postgres & Mongo DB for data storage
Followed Agile process with Sprint planning, retrospectives & daily standups for health checks of the project.

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Java/J2EE
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Spring Boot
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Infrastructure as code (IaC)
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Amazon Web Services (AWS)
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Hibernate
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Git
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AWS CDK
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SQL
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RESTful WebServices
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DevOps
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Kotlin
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OAuth2
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Okta
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IAM
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Cognito
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GitHub Actions
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Python
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JavaScript
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ReactJS
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NodeJS
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Aug 2017 - Mar 2020

Partner Portal

Senior Associate

Activities

Developed a web solution to ease the process of onboarding potential EMIS Health service partners.
The solution solves the hectic process of filling loads of forms with a questionnaire about the service contracts and proved to be 4X times more efficient than manual onboarding.
The tech stack includes SPA Web portals powered by React, Redux, etc., and backend API servers powered by Kotlin (Java), Springboot, and JPA Hibernate.
Authentication integrated with Okta IAM and APIs has registered to Resource Servers and delegates necessary permissions to users.
Used Postgres as database and Flyway version SQL scripts.
Followed Agile process with Sprint planning, retrospectives & daily standups for health checks of the project.

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Java/J2EE
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Spring Boot
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Infrastructure as code (IaC)
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Amazon Web Services (AWS)
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Hibernate
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Git
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CDK
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SQL
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RESTful WebServices
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DevOps
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Kotlin
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OAuth2
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Okta
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IAM
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Cognito
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GitHub Actions
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Python
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JavaScript
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ReactJS
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NodeJS
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Jan 2014 - Jul 2017

Tata Consultancy Services

CoE

Automation Engineer

Activities

Technical consultation on Automation
Framework development and implementation proving ROI and benefits of automation
Plan, estimate and strategy on API and End-to-End test automation
Customer presentations, training and tool fitment analysis

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Java/J2EE
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JavaScript
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JavaServer Pages (JSP)
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Selenium
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HTML
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SVN
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Servlets
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Spring MVC
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Education

My Qualification

Jun 2019 - May 2020

Annamali University

Post Graduate Diploma

Computer Applications

Grade A

Aug 2009 - May 2013

Acharya Nagarjuna University

Bachelor of Technology

Electrical and Electronics Engineering

Grade A

Skills

Matrix

SpringbootJPAJavaKotlinPythonShellGradleMavenMockitoPowermockJUnitPostgresqlBDDDDDTDD

ReactReduxJQueryaxiosJavascriptTypescriptWebpackbabelplopEnzymeJestpuppeteerBootstrapplopSCSSCSS

EC2AWS LambdaS3RDSDynamoDBVPCCloudFrontAPI GatewayRoute 53CodePipelineCodeBuildCloudformationCloudwatchSystems ManagerCognitoEC2Secrets ManagerACMKMSWAFECRECS

AWS CDKDockerOAuth2SSOIntellij IDEAVS CodePycharmGitGithubJiraConfluenceAzure DevOps

All Projects

Personal Projects

frontend

tidy-ui

Tidy UI is a family of micro components primarily focused on building rich UI/UX, powered by styled-components, features include css-in-js, theming, mobile-first, etc

3 years ago

ETA 1 year

ReactStyled Components

Youtube Clone

A clone of youtube web home page, just made for fun. Nothing is really interactive on the site

4 years ago

ETA 14 Hours

React