Radhika Vararappilly rajendran

Technical Lead and Senior developer

15+ years of experience in AI/ML, Cloud Architecture, and Full Stack Development. Specializing in building scalable solutions with Python, Java, and Modern Web Technologies.

Experienced software development professional with extensive expertise in C/C++, Python, and AI/ML technologies on Linux/Unix/Windows platforms. Proven track record of delivering high-performance solutions for complex business challenges across healthcare, telecom, and airline industries. Strong communicator and collaborator with a focus on continuous improvement, team success, and developing scalable, reliable software solutions.

Explore My Work

About Me

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15+

Years of software development expertise in C/C++ and Python

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AI/ML

Technical leadership in Python and AI/ML technologies

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Cloud

Expertise in Azure and Oracle Cloud platforms

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Multi-Domain

Healthcare, Telecom, Mobility, and Airlines

Technical Skills

Programming Languages

C, C++
Python
Objective-C
Pro*C
SQL, PL/SQL
Visual C++
HTML
Shell Scripting
REST, SOAP

AI / Machine Learning

Scikit-learn
Large Language Models (GPT, LLaMA, Gema, Gemini, Grok)
RAG (Retrieval Augmented Generation)
Chatbots
LangChain
LangGraph

Python Frameworks & Libraries

Django
FastAPI
Pandas
NumPy
Pydantic
LangChain
LangGraph

Domains / Industry Expertise

Healthcare (Medicare & Medicaid claims)
Oracle Fusion Cloud
Telecom (Oracle BRM)
Mobility
Airlines

SDLC Methodologies

Agile
Scrum
Continuous Improvement
Team Collaboration

Debugging & Profiling Tools

DDD
GDB
Sun Studio

Cloud Platforms

Azure
Oracle Cloud

Operating Systems

Linux
Unix
Windows
MacOS

Databases

Oracle
MySQL
PostgreSQL
MongoDB
ChromaDB
PL/SQL

Version Control & Configuration

Azure Repos
GitLab
TFS
PVCS
ADE
SVN

Programming Concepts

Object-Oriented Programming (OOP)
Datastructures and design patterns
System Architecture
Performance Optimization

Leadership & Soft Skills

Technical Leadership
Team Collaboration
Strong Communication
Problem Solving
Mentorship

Professional Experience

Technical Leadership - AI/ML Focus

Recent • 1 Year

Led technical initiatives focused on Python and AI/ML technologies, driving innovation and team success in cutting-edge projects.

Architected AI/ML solutions using Large Language Models and RAG
Implemented chatbot systems using LangChain and LangGraph
Mentored development teams on AI/ML best practices
Drove continuous improvement initiatives across projects

Senior Software Development

15+ Years Total Experience

Extensive expertise in C/C++ and Python development across Linux, Unix, and Windows platforms with proven track record of delivering high-performance solutions.

Developed scalable solutions for complex business challenges
Specialized in Oracle BRM implementations and customizations
Built enterprise-grade systems for large-scale operations
Strong focus on Object-Oriented Programming and design patterns

Healthcare Domain Expertise

Multi-Year Engagements

Delivered critical healthcare system solutions for Medicare and Medicaid claims processing.

Built robust claims processing systems
Ensured HIPAA compliance and data security
Optimized performance for high-volume transactions
Collaborated with healthcare domain experts

Telecom & Airlines Solutions

Multiple Domains

Developed solutions for telecom billing systems and airline management platforms.

Oracle BRM expertise for telecom billing
Airline systems and mobility solutions
Oracle Fusion Cloud implementations
High-availability and fault-tolerant architectures

Core Competencies & Philosophy

Continuous Growth

Strong communicator and collaborator with unwavering focus on quality, continuous improvement, and team success.

Agile and Scrum methodologies
Team collaboration and knowledge sharing
Scalable and maintainable code architecture
Performance optimization and reliability
Mentorship and technical leadership

Projects

Kardia, Oracle Fusion Cloud Internal AI projects

Dec 2024 - Present

Cloudvice (Charlotte, USA)

AI model and tools development for Oracle fusion cloud and Healthcare diagnosis systems. Leading a team of developers in designing and deploying AI/ML based solutions using Python.

Key Responsibilities: Developing and integrating AI-driven Chatbots for Oracle Cloud implementation using RAG. Building predictive diagnosis models for healthcare. Utilizing LangChain and LangGraph for workflow automation.

Platform & Tools: Azure, Git, VS Code, Jupyter Notebook, Sharepoint

Domain: Healthcare, Oracle Fusion Cloud

Clients: Kardia (USA), NES, Town of Cary

Python Bash/Shell Scripting AI/ML RAG LangChain Oracle Cloud Azure Git

TMSIS - Medicaid

June 2023 - December 2024

Gainwell Technologies (Contract)

The Transformed Medicaid Statistical Information System (T-MSIS) vision is to be the most trusted resource of comprehensive and quality Medicaid and CHIP data used for policy formulation, implementation, and oversight.

Key Responsibilities: Backend Developer - Design and Development of new requirements

Platform & Tools: Linux, PI/SQL Developer/SQL developer, Visual Studio, TFS, WinSCP, Coverity, Visual Studio Code

Domain: Healthcare Insurance- Medicaid claims (TMSIS)

Clients: Kansas State

C++ C Python PL/SQL Pro*c Shell Scripting Linux TFS Visual Studio

Advantasure - BCBS

July 2019 - Feb 2023

Avanade (Raleigh, USA)

Healthcare management platform designed to solve complex issues of value-based care and plan/provider coordination. Focused on claim processing (Adjudication).

Key Responsibilities: Design and development of claim adjudication features including RHC (Rural Health Care), Max allowed Benefits, and DME claims.

Platform & Tools: Linux, PL/SQL, Visual Studio, TFS, Jira, Azure, AWS, REST (gSOAP)

Domain: Healthcare Insurance - Medicare and Medicaid claims

Clients: BCBS Michigan, Scan, Kansas, Premera, HPHC

C++/C/Python PL/SQL Shell Scripting REST/SOAP AWS/Azure

Oracle Monetization Cloud (OMC) – SaaS Cloud

May 2018 - Mar 2019

Oracle India Pvt.Ltd. (Bangalore, India)

End-to-end revenue management system for digital service providers. Used to configure product offerings, create customer accounts, charge for services, and analyze revenue.

Key Responsibilities: Design and Development of new requirements in BRM cloud including SOAP WebServices. Setting up of BRM components.

Platform & Tools: Linux, SQL Developer, SOAP Web Services, Docker, Kubernetes, Jenkins

Domain: Telecom

Clients: Chegg, EMAAR

C++/C SQL SOAP Docker Kubernetes Jenkins Linux

Billing and Revenue Management Suite (Oracle BRM)

Sep 2014 - Apr 2018

Oracle India Pvt.Ltd. (Bangalore, India)

BRM is an end-to-end revenue management system for communications and media service providers. It handles convergent rating and billing, subscriber creation, service association, and billing functionalities. The Pipeline Manager component is responsible for Real-time Rating and Batch Rating.

Key Responsibilities: Responsible for developing, maintaining, and configuring the Pipeline Manager component for Real-time Discounting and Batch Rating. Discount module Owner for over 3 years.

Platform & Tools: Linux, SQL Developer, Confluence, Jira, Teamcity, ADE, Hudson

Domain: Telecom

Clients: Vodafone, Rackspace, Sasktel

C++ SQL PL/SQL Linux Telecom Billing

Victoria Police, Boomo, bSKYb

Oct 2013 - Sep 2014

Tech Mahindra Pvt.Ltd. (Bangalore, India)

Research and development on card reading techniques for Victoria Police. Development of "On sale" module for Boomo project. Implementation of multiparty video chat for reporters on bSKYb.

Key Responsibilities: iOS mobile application Development

Platform & Tools: Mac OSX, iOS, Xcode5, iOS Simulator

Clients: Victoria Police (Australia), Finsol, bSKYb

iOS Objective C Xcode Mobile App Development Mobility

Achievements & Recognition

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Oracle AI World 2025 – Booth Staff

AI & Robotics Presentation

Engaged with attendees, explained AI and robotics applications, and supported live demos at Oracle AI World 2025.

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Multiple Spot Awards

Avanade by Advantasure

Recognized with multiple spot awards for exceptional performance, innovation, and contribution to project success in Healthcare domain.

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BRM 12C Cloud Implementation

Oracle India PVT Ltd.

Recognized for the successful implementation of BRM 12C - cloud, demonstrating technical excellence and project leadership.