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rewant06

Rewant Raj

@rewant06

Full Stack Developer

India
English
About me
Full‑stack engineer focused on backend-first SaaS products. I build production NestJS/Node.js APIs (auth, RBAC, billing-ready), scalable PostgreSQL schemas, and Redis caching for high performance. I also deploy reliably on AWS using Docker and (when needed) Kubernetes with clean CI/CD-friendly setups. I’ve been building web products since 2021, and I care about clean architecture, clear communication, and on-time delivery.... Read more

Skills

r
rewant06
Rewant Raj
Offline • 

See my services

API & Integrations
I will build a secure saas rest API
From$100 / projectMore details
Custom Websites
I will build a nextjs react website with typescript
From$100 / projectMore details

Work experience

Software Engineer L2

Healthunity Solutions Private Limited • Full-time

Feb 2024 - Present • 2 yrs 3 mos

Developed scalable microservices by migrating the appointment engine to NestJS based microservices. Containerized services using Docker and ECR and automated CI CD pipelines with GitHub Actions, reducing release lead time by 50 percent. Fortified data security and IAM by building a centralized identity system for PHI protection. Implemented attribute based access control using Redis and JWT to enforce granular doctor patient permissions and ensure HIPAA compliance. Optimized API performance by reducing P99 latency from 200 milliseconds to under 50 milliseconds by replacing offset pagination with cursor based pagination and implementing Redis write through caching for patient timelines. Implemented event driven workflows by decoupling heavy compute tasks such as lab report processing using BullMQ with Redis queues, enabling asynchronous processing of over 15000 daily jobs without blocking critical user interactions. Built a compliance engine by developing custom Prisma middleware to record immutable before and after audit snapshots, reducing incident investigation time by 70 percent. Modernized the frontend by revamping the Doctors Workbench using Next.js version 16 and SWR, implementing optimistic UI patterns to deliver instant administrative feedback.

Full Stack Developer

Self Employed • Freelance

Jun 2021 - Present • 4 yrs 11 mos

Built SaaS backends and dashboards using NestJS/Node.js, Next.js/React, PostgreSQL, Redis; deployed on AWS with Docker/Kubernetes; improved API latency via caching and query tuning.