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Onkar Sabale

@onkarsabale15

India

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What I'm looking for

Seeking a full-stack role with a focus on backend development. Proficient in both frontend and backend technologies, with a stronger emphasis on backend expertise. Experienced in MERN stack and AWS. Passionate about building scalable applications and proficient in server monitoring.

Backend Engineer with ~3 years building scalable, distributed, and event-driven backend systems in Node.js and TypeScript. Specialized in healthcare interoperability (HL7 FHIR R4, SMART on FHIR, OAuth 2.0) with production experience shipping LLM-based agents for clinical decision support using LangChain.js. Strong in idempotency, concurrency control, distributed caching, and high-throughput third-party API integration across serverless (AWS Lambda) and containerized architectures.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

Thinkitive Technologies Pvt. Ltd

May 2024 - Present (2 years 1 month)

• Contributed to a Clinical Interoperability and Intelligence Platform — an enterprise FHIR R4 gateway and AI Clinical Decision
Support platform unifying 11+ EHR vendors (Epic, Cerner, Athena, NextGen, eClinicalWorks, Dr. Chrono, Meditech, Practice
Fusion, Veradigm, TouchWorks, Elation) behind a single SMART on FHIR-compliant API.

PostgreSQL JavaScript TypeScript RESTful APIs Redis NodeJS Sequelize

Backend Developer

The Herbs Magic

May 2023 - May 2024 (1 year)

Built and maintained backend services in Node.js + Express.js for an e-commerce platform and admin dashboard.
Implemented Redis caching and queue-based background processing with BullMQ to improve performance.
Deployed containerized services using Docker and Nginx, with monitoring via Prometheus and Grafana.
Automated deployments using GitHub Actions, including manual and dispatched workflows.

MongoDB AWS React Docker NodeJS Socket.IO TailwindCSS ExpressJS Next.js Prometheus Grafana Loki

Education

Degrees, certifications, and relevant coursework

D Y Patil International University

B.Tech CSE, Computer Science Engineering - Cyber Security

2020 - 2024

Grade: 7.4

D Y Patil International University

Bachelor of Technology (B.Tech), Computer Science & Engineering

2020 - 2024

Completed a B.Tech in Computer Science & Engineering with a focus on Cyber Security from D Y Patil International University. Studied from 2020 to 2024.