Yashika Upadhyay

Full Stack Engineer

Morena, Madhya Pradesh, India1 yr 10 mos experience

Key Highlights

Engineered scalable backend services handling 10k+ requests daily.
Developed a low-latency payment system with strong consistency.
Architected a concurrent booking system ensuring reliable slot allocation.

Stackforce AI infers this person is a Full-Stack Developer with expertise in SaaS and Fintech solutions.

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Skills

Core Skills

Backend DevelopmentFull-stack Development

Other Skills

Backend ServicesPayment SystemsJWT AuthenticationConcurrency ControlRole-Based Permission SystemBooking SystemMongoDBWebSocketFrontend DevelopmentAngularAngularJSIntegration TestingBooking SystemsCodeceptJSWAMP

About

A passionate and dynamic Computer Science Engineer with a keen interest in crafting innovative solutions to complex problems.I thrive on turning ideas into reality through the power of code and technology.

Experience

1 yr 10 mos

Total Experience

1 yr 5 mos

Average Tenure

1 yr 1 mo

Current Experience

Inncircles

2 roles

Product Developer

May 2025 – Present · 1 yr 1 mo · On-site

Backend ServicesPayment SystemsJWT AuthenticationConcurrency ControlRole-Based Permission SystemBooking System+6

Full Stack Intern

Aug 2024 – May 2025 · 9 mos · On-site

Inncircles technology

Software Engineer

Aug 2024 – Present · 1 yr 10 mos

· Engineered scalable backend services handling 10k+ requests/day with optimized latency and throughput
· Built low-latency payment system (Razorpay) processing up to Rs.30L+ with strong consistency guarantees
· Implemented JWT-based authentication (access + refresh tokens) with secure session lifecycle
· Designed concurrency control mechanisms to prevent race conditions in booking workflows
· Architected role-based permission system enabling fine-grained access control
· Built concurrent booking system ensuring reliable slot allocation
· Optimized read-heavy APIs using MongoDB indexing and aggregation pipelines, improving query performance and response time from 100 ms to 33 ms
· Integrated Spintly (IoT) for real-time smart access workflows
· Implemented rate limiting to maintain system stability under load
· Developed WebSocket-based real-time updates
· Designed backend for bulk document retrieval and downloads
· Led S3 migration improving storage scalability and reliability
· Built frontend using Angular with reusable components and efficient state handling