Available for backend engineering roles
Dnyaneshwar Kawade —
Backend Engineer & Systems Builder
Backend-focused Full-Stack Engineer with 2.5 years of experience building multi-tenant SaaS, event-driven systems, and scalable APIs.
Specialized in Node.js, Redis/BullMQ, Docker, and AWS with production-grade ownership. Currently shipping at WellnessZ.
Impact
10+Domain Features
Architected and shipped the entire ABC platform from zero — a SaaS comprising 10+ core domain features spanning billing, notifications, media, and analytics.
99.9%Reliability
Maintained enterprise-grade uptime across critical billing, notification, and media pipelines — with zero cross-tenant leakage and idempotent transaction handling.
~80%Load Reduction
Architected asynchronous queue offloading and streaming pipelines that eliminated primary-thread blocking, stabilized peak-hour response times, and removed OOM risks at scale.
HardIsolation
Engineered an enterprise-grade multi-tenant architecture with dedicated API and worker nodes per tenant, enforcing absolute schema-level separation and zero data leakage.
Experience
WellnessZ
SDE · Full Stack · Remote
Aug 2024 — Present
- Architected a centralized multi-tenant JWT RBAC middleware enforcing 50+ granular permissions across 6,000+ users, maintaining 99.9% uptime.
- Engineered an idempotent Razorpay webhook pipeline with cryptographic signature verification, automating recurring subscription billing with zero transaction drift.
- Reduced read/write latency by 45% via optimized bulk writes and compound indexes.
- Cut peak database load by 80% using Redis/BullMQ cron routines, pre-scheduling workloads with 100% delivery.
- Eliminated OOM risks during YouTube video uploads by replacing monolithic file buffering with a streaming chunk architecture.
Selected Work
Vibhava Estate Systems — Multi-Tenant Real Estate SaaS
- Designed a multi-tenant backend with fully isolated tenant data and dedicated API/worker services.
- Configured automated CI/CD workflows using GitHub Actions and Docker Compose deployments to AWS EC2.
- Integrated Redis for high-performance task queuing, background processing, and caching.
Distributed Event Bus & Notification Engine
- Achieved sub-2ms API ingestion latency through a decoupled event-driven architecture built on Redis primitives.
- Reduced endpoint overhead by 95% by eliminating primary-thread database blocking.
- Cut processing overhead by 60% with parallel BullMQ worker pools for FCM, SMS, and Email.
Skills
Languages
JavaScript, TypeScript, Node.js, Go
Backend
Express.js, REST APIs, Redis, BullMQ, MongoDB
Frontend
React.js, Next.js, Redux Toolkit, Tailwind
DevOps
Docker, CI/CD, GitHub Actions, AWS EC2, AWS S3
Contact
Let's build something reliable.
Open to backend engineering roles, freelance work, and technical collaborations.