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Karthik B

Immediate joiner | SDE-1 @ RagaAI | Prev Founding Backend Engineer @ Revlitix!

Bengaluru

4+ years of work experience

RagaAI Inc
Jan 20269 mosPresent

Bengaluru, Karnataka, India

Jan 20269 mosPresent

Full-Stack Platform Contribution: Contributed across a healthcare operations platform, working on Java/Spring Boot backend services, React/TypeScript frontend, and PostgreSQL data layer. Built Collections & Payment Recovery Platform: Engineered a two-way SMS conversation system enabling real-time agent-patient communication with message threading and history; built CSV-based outreach exports via S3 pre-signed URLs and automated reminder logic with PII-safe payment link masking. Developed Document Management & Verification of Benefits System: Built an OTP-verified, PDF-streaming patient document access flow with multi-tenant, schema-based Hibernate configuration and an encrypted ID system for secure document transmission across services. Engineered Data Import & File Processing Pipeline: Built an XLSX/CSV upload system with LLM-assisted header detection, multi-sheet parsing, and import-readiness validation to support onboarding and Prior Authorization workflows. Refactored SMS & Communications Infrastructure: Built a multi-agent SMS routing system with Twilio delivery-status callbacks, tenant-specific provider resolution, and differentiated error handling for failed or opted-out messages. Built Admin Preferences & Billing Management: Implemented a CRUD-based preference management system with pagination and cache invalidation for tenant-level configuration, including Azure Blob Storage and VOB onboarding settings.
Revlitix
Jan 20242 yrs 1 moJan 2026

Bengaluru, Karnataka, India

-First engineering hire; built the entire backend architecture from scratch. -Started with Java (Spring Boot) and MongoDB, later transitioned to TypeScript and ClickHouse for high-performance analytics. -Designed multi-tenant architecture with strong data isolation and security. -Implemented multi-factor authentication (MFA) and role-based access control (RBAC) with automated token refresh functionality. -Implemented an intelligent rate-limiting mechanism to control API traffic, prevent abuse, and ensure high system reliability under heavy load. -Developed and deployed scheduled email notifications for user-defined alerts and weekly reports, automatically adjusted to each user’s timezone to improve engagement and data visibility. -Added Hazelcast, Redis, and RabbitMQ for caching and async communication. -Integrated external APIs (Salesforce, HubSpot, LinkedIn, Google Apps) and built ETL pipelines for analytics. -Drove performance optimization, code quality, and debugging across services. -Handled Scrum activities on a rotation basis, ensuring smooth sprint execution. -Used ELK, Grafana, and AWS for monitoring, logging, and infrastructure management.
Revlitix
Nov 20221 yr 2 mosDec 2023

Bengaluru, Karnataka, India

Revlitix
Aug 20224 mosNov 2022

Bengaluru, Karnataka, India

Karthik’s AI Stack

claude code
claude code
cursor
cursor
gemini
gemini
github copilot
github copilot
perplexity
perplexity
ChatGPT
ChatGPT

Education

bangalore university

Bachelor of Science, Computational Science

bangalore university

20183 yrs2021
Christ University, Bangalore

Pre university, PCMB

Christ University, Bangalore

20162 yrs2018

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Headline

Immediate joiner | SDE-1 @ RagaAI | Prev Founding Backend Engineer @ Revlitix!

About

Founding Backend engineer with hands-on experience in Java, Spring Boot, TypeScript, and Node.js, skilled in designing and scaling data-driven backend systems. Proven track record of building microservices, REST APIs, and distributed data pipelines from the ground up. Adept at integrating SQL/NoSQL databases, message queues, and caching systems to deliver high-performance and reliable solutions. Familiar with AWS, ELK, and Grafana for monitoring, with occasional involvement in frontend integrations.

Location

Bengaluru

AI stack

claude code

cursor

gemini

github copilot

perplexity

ChatGPT

Work experience

Software Development Engineer 1 at RagaAI Inc, Jan 2026 - Present · 9 mos, Bengaluru, Karnataka, India

Software Engineer at RagaAI Private Limited, Jan 2026 - Present · 9 mos, Full-Stack Platform Contribution: Contributed across a healthcare operations platform, working on Java/Spring Boot backend services, React/TypeScript frontend, and PostgreSQL data layer. Built Collections & Payment Recovery Platform: Engineered a two-way SMS conversation system enabling real-time agent-patient communication with message threading and history; built CSV-based outreach exports via S3 pre-signed URLs and automated reminder logic with PII-safe payment link masking. Developed Document Management & Verification of Benefits System: Built an OTP-verified, PDF-streaming patient document access flow with multi-tenant, schema-based Hibernate configuration and an encrypted ID system for secure document transmission across services. Engineered Data Import & File Processing Pipeline: Built an XLSX/CSV upload system with LLM-assisted header detection, multi-sheet parsing, and import-readiness validation to support onboarding and Prior Authorization workflows. Refactored SMS & Communications Infrastructure: Built a multi-agent SMS routing system with Twilio delivery-status callbacks, tenant-specific provider resolution, and differentiated error handling for failed or opted-out messages. Built Admin Preferences & Billing Management: Implemented a CRUD-based preference management system with pagination and cache invalidation for tenant-level configuration, including Azure Blob Storage and VOB onboarding settings.

Software Engineer 1 at Revlitix, Jan 2024 - Jan 2026 · 2 yrs 1 mo, Bengaluru, Karnataka, India, -First engineering hire; built the entire backend architecture from scratch. -Started with Java (Spring Boot) and MongoDB, later transitioned to TypeScript and ClickHouse for high-performance analytics. -Designed multi-tenant architecture with strong data isolation and security. -Implemented multi-factor authentication (MFA) and role-based access control (RBAC) with automated token refresh functionality. -Implemented an intelligent rate-limiting mechanism to control API traffic, prevent abuse, and ensure high system reliability under heavy load. -Developed and deployed scheduled email notifications for user-defined alerts and weekly reports, automatically adjusted to each user’s timezone to improve engagement and data visibility. -Added Hazelcast, Redis, and RabbitMQ for caching and async communication. -Integrated external APIs (Salesforce, HubSpot, LinkedIn, Google Apps) and built ETL pipelines for analytics. -Drove performance optimization, code quality, and debugging across services. -Handled Scrum activities on a rotation basis, ensuring smooth sprint execution. -Used ELK, Grafana, and AWS for monitoring, logging, and infrastructure management.

Associate Software Engineer at Revlitix, Nov 2022 - Dec 2023 · 1 yr 2 mos, Bengaluru, Karnataka, India

Software Engineer at Revlitix, Aug 2022 - Nov 2022 · 4 mos, Bengaluru, Karnataka, India

Education

Bachelor of Science, Computational Science, bangalore university

Pre university, PCMB, Christ University, Bangalore