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DivyanshRai27/README.md

Portfolio LinkedIn Email

01 · About

I'm a backend engineer with 3.5+ years of experience building production systems for commerce, customer engagement, and internal operations. I focus on systems that remain fast, reliable, and maintainable as traffic and product complexity grow.

  • Built high-traffic APIs and multi-channel workflows serving 200+ merchants daily
  • Reduced latency by 70% with caching and query optimization
  • Improved onboarding efficiency by 60% through indexing and process synchronization
  • Built AI-powered operational tooling that reduced repetitive work by 40%
  • Open to backend, product, and founding/early-engineer opportunities

02 · Stack

Technology stack

Area Technologies
Backend Node.js, NestJS, Express, GraphQL, REST APIs, Jest
Data PostgreSQL, MongoDB, MySQL, TimescaleDB, ClickHouse, Redis
Cloud AWS, Docker, Nginx, GitHub Actions, CI/CD
Architecture Microservices, Kafka, event-driven systems, distributed systems, MCP

03 · Selected systems

System What I built Core technology
KwikEngage AI Ops MCP server connecting Claude with secure merchant operations APIs Claude, MCP, Node.js, REST
File Management Service Centralized media service with multi-resolution processing and CDN delivery Node.js, S3, CloudFront, Redis
Commerce data pipelines Shopify event stitching, analytics queries, and asynchronous processing PostgreSQL, Kafka, GraphQL

Explore full case studies →

04 · Engineering focus

performance      → indexing, query planning, caching, efficient APIs
reliability      → retries, idempotency, queues, failure isolation
scalability      → stateless services, event-driven flows, async processing
maintainability  → clear boundaries, observability, incremental modernization
AI integrations  → secure tools that improve real operational workflows

05 · 3D contribution activity

Divyansh Rai's 3D GitHub contribution graph

The graph is generated daily inside this repository, avoiding the rate limits of public stats-card endpoints.

06 · Connect

I'm open to conversations about backend platforms, scalable APIs, distributed systems, practical AI integrations, and product engineering opportunities.

Portfolio  ·  LinkedIn  ·  Email

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  1. My-Portfolio My-Portfolio Public

    Check my Portfolio here!!!

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  2. Qudio_Nasa Qudio_Nasa Public

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  3. mezerate_backend mezerate_backend Public

    An application for all the study stuff!!!!

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    CSS

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    JavaScript

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    JavaScript