Vivekananthan S
Contact details — on requestProof of Work — on request
Experience
S
Back End Developer
Stadius Technologies Pvt. Ltd. · Jan 2026 – Present
- • Architected and developed the backend for DigiParivaar, an MVP-based learning platform using Node.js, Express.js, and MongoDB.
- • Designed and implemented scalable RESTful APIs for lesson delivery, learner progress tracking, and resume-learning functionality.
- • Integrated Firebase OTP authentication to provide secure and seamless user onboarding.
- • Designed and optimized MongoDB schemas for users, courses, lessons, and progress tracking, ensuring efficient data management.
- • Deployed and maintained backend services on Railway, managing production environments and application configurations.
- • Led backend architecture and technical decision-making, focusing on scalability, maintainability, and performance.
S
Backend Lead (Contract)
Stadius Technologies Pvt. Ltd. · Jan 2026 – Present
- Architected the backend from scratch for an MVP EdTech platform using Node.js and Express.js, delivering 12+ RESTful APIs for lesson flows, progress tracking, and resume-learning while reducing average response time by 25%.
- Engineered OTP-based authentication with Firebase and secure token flows, onboarding 500+ users with zero authentication failures across three sprint cycles.
- Designed MongoDB schemas across five core collections with strategic indexing, improving average query execution time by 20%.
- Led infrastructure decisions including Railway for deployment, Redis for caching, and Firebase for authentication, reducing infrastructure setup time by 40% compared to prior baselines.
Q
Software Developer
Quantum Sharq Innovative Solutions · Jun 2024 – Nov 2025
- Built and maintained a MERN-based healthcare management system serving 200+ daily active users; refactored 10+ APIs and optimized MongoDB aggregation pipelines, improving response times by 30% and reducing database load by 40%.
- Migrated WhatsApp notifications from Interakt to Meta Business API by rewriting the notification service, reducing monthly messaging costs by 35% while maintaining 99.5% delivery reliability.
- Resolved 15+ critical production incidents on Linux VPS environments, including memory leak fixes and cron job optimizations, sustaining 99.5% uptime with an average resolution time under two hours.
- Revamped 8+ React components using React.memo and useMemo, reducing unnecessary re-renders by 45% and improving Lighthouse scores by 18 points.
Q
Software Developer
Quantum Sharq Digital Systems Private Limited · Jun 2024 – Nov 2025
- • Engineered a healthcare management system using MERN stack, supporting core workflows for patient and clinical data management.
- • Optimized 10+ backend APIs and MongoDB queries, improving response times by up to 30% and reducing database load.
- • Migrated WhatsApp notification system from third-party Interakt API to Meta Business API, significantly reducing operational costs.
- • Deployed and managed backend services on a Linux VPS, handling server configuration, environment setup, and production monitoring.
- • Improved frontend performance by optimizing React components using memoization techniques (React.memo, useMemo).
Skills 0 proven through work
Also works with
Meta Developer PlatformAPI IntegrationCost-Saving Initiative ManagementStrategic PlanningRate Limiting & Throttling ImplementationApplication Performance OptimizationRedis Cache ImplementationN+1 Query Identification and ResolutionDatabase Query OptimizationAPI Caching ImplementationMongoDBMVC Architecture ImplementationREST API Endpoint DevelopmentFeasibility and Impact AssessmentData ModelingScalable System Design
Proof of Work
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Education
Bachelor of Technology, Information Technology
Bharath Niketan Engineering College · 2020 — 2024
Contact details
Contact details
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