Rachit Ranjan

Software Engineer

South Delhi, Delhi, India4 yrs 1 mo experience

Most Likely To SwitchAI ML Practitioner

Key Highlights

Top 10% globally in Google Kickstart
Built microservices handling over 1 billion requests
Passionate about clean, maintainable code

Stackforce AI infers this person is a Backend Developer with expertise in Healthcare and Fintech industries.

Contact

Skills

Core Skills

Backend DevelopmentSystems DesignAi DevelopmentAndroid Development

Other Skills

AndroidC (Programming Language)C++Cloud FirestoreCompetitive ProgrammingData ScienceDatabase Management System (DBMS)DjangoFastAPIFirebaseFull-Stack DevelopmentJavaKafkaKotlinKubernetes

About

Backend Software Engineer with 3+ years building high-throughput, low-latency microservices and event-driven systems serving millions of requests daily. Algorithms & Data Structures: Top 10% globally in Google Kickstart . Top 4% in LeetCode contests. Strong foundation with 2,000+ problems solved across LeetCode, CodeChef, and HackerRank. Languages & Frameworks: Python, TypeScript, SQL , Django (DRF & Admin), FastAPI, NestJS, Express.js Systems & Tools: Kafka, Redis, PostgreSQL, MongoDB, Docker, Kubernetes, AWS, Snowflake Architecture: RESTful APIs, message-driven pipelines, database and schema design. I’m passionate about clean, maintainable code and performance tuning whether it’s reducing API latency under 100 ms or designing AI-driven workflows using LLMs and Langchain. Looking For: Backend roles where I can lead large-scale system design, work cross-functionally, and help shape AI-integrated services.

Experience

4 yrs 1 mo

Total Experience

1 yr

Average Tenure

2 yrs 2 mos

Current Experience

Innovaccer

Software Development Engineer

Apr 2024 – Present · 2 yrs 2 mos · Noida, Uttar Pradesh, India · Hybrid

Part of data platform team of the first health tech unicorn exceeding $3.2 billion evaluation.
Developed Rule Engine for real-time redaction of 10Million+ sensitive patient data with P99 latency under 300ms.
Built Consent Management microservice using FastAPI from the ground up, scaled to handle over 1 billion requests and more than 10 million daily traffic with sub-100ms latency.
Designed ETL pipelines to move over 10 million records across Snowflake through stage to S3 and MongoDB using Kubernetes Jobs and KEDA-based autoscaling workers.
Developed an event-driven system using Kafka to process more than 10 million daily UAM/ACL events with fault-tolerant DLQ handling and idempotent consumer logic.
Engineered a high-performance Snowflake View to render complex patient lists involving 200K+ health codes per user and over 30 columns, achieving 400ms query response time.
Improved dashboard API performance by 95%, reducing latency from 4 seconds to 200 milliseconds.
Created a Kubernetes CronJob to delete stale materialized views, reducing disk usage from 16 TB to 5 TB across 100+ enterprise customers.
Developed a scalable asynchronous dashboard download service using Django, Celery, and Redis, supporting 100+ health organizations and integrating with Power BI APIs.
Achieved readiness and liveness probe compliance under 60 seconds by optimizing long-running database migrations and job initializations within init containers.

FastAPIKafkaSnowflakeKubernetesDjangoRedis+4

Jumbo

Founding Software Engineer

Aug 2023 – Apr 2024 · 8 mos · New Delhi, Delhi, India · On-site

Resigned.
Designed & implemented Opinionated Trading Game based on IPL (cricket) serving 1Million+ users.
Built Core Features from Scratch: Payment , Coupon , Agents , KYC & Finding Jumbo game.
Integrated Razorpay payment gateway with webhook & global switch along alternate payment providers to manage downtime.
Scaled the product from 0 to 1Million+ using NestJS . Optimized payment gateway.
Built Kafka for payments & orders, hosted on Upstash, with optimized topic partitioning for scalable transactions.
Built string similarity % Algorithm for fuzzy matching KYC name between PAN & Aadhaar to facilitate 100K+ user's payouts.
Architected BullMQ to streamline WebEngage user events, enhancing marketing campaign automation and scalability by background tasks. Improved system efficiency through distributed job queues.
Optimized OTP authentication by redis cache.
Stealth Mode:
https://joinjumbo.com/

NestJSKafkaRazorpayWebEngageBackend DevelopmentSystems Design

Admire asia

Back End Developer

Jul 2022 – Jun 2023 · 11 mos · Dubai, United Arab Emirates · Remote

Working on the back end of planner tool : https://www.admireasia.com/
Built customized AI bot for creating automatic itineraries on prompt constraints like location , budget and vibes ,by embedding our inventory , fine tuning open AI's davinci model with our prefilled itinerary training set using Open AI , langchain and llama index APIs.
Built the email services and dynamic templates for all processes like sign up , otp , booking , cancellation & more.
Integrated Open AI Text completion API in admin panel to generate meta tags of travel blog site for SEO along with yoast.
Created the flow of flight booking , currently integrating flights in Admire Asia

OpenAILangchainDjangoBackend DevelopmentAI Development

Addverb

Android Developer(Intern)

Nov 2021 – Mar 2022 · 4 mos · Noida, Uttar Pradesh, India

Worked in a product based competitive environment that showed top 1% competence in Warehouse Management & Enterprise Systems for Reliance , Netmeds and ITC.
Saved 80% Resources in building Enterprise Cyclecount System for client ITC.
Implemented all 3 major warehouse processes in Android Framework
Exhibited good knowledge with Android architectures mainly MVVM and MVP
Built Android UI(Activities , Fragments , Custom view components) with XML & KOTLIN
Worked with RESTful APIs using RETROFIT client , Local Database using ROOM Library
Enhanced inbound , midbound and outbound operations by MultiThreading using Kotlin Coroutines
Possessing Strong Knowledge of Gradle build systems , Android SDK and Unit Testing by JUnit

AndroidKotlinXMLAndroid Development