Vashu Karn 0%
Web & Mobile Development
Portfolio · v2026

Senior Full-stack Engineer

— Vijay "Vashu" Karn Kathmandu, Nepal · Open to remote roles worldwide

I architect and ship production systems across e-commerce, healthcare, IoT, and real-time platforms. 6+ years of PHP/Laravel, Flutter, and distributed systems — from greenfield to scaled production.

About Vashu Karn

I'm a Senior Full Stack Engineer with a deep affection for well-architected systems. I've led engineering teams of up to 10 engineers and owned end-to-end delivery of microservice architectures, cross-platform mobile, IoT control planes, and payments at production scale.

Currently building Talkative (Speech-Language Pathology) and a self-service IoT dog-wash platform at Imaginovation. Previously Technical Head at Alltechlabs, where I architected GetDirect — a food-delivery price-comparison engine serving 200+ Indian cities through ONDC.

Name Vijay Ranjan Karn
Role Senior Full Stack Engineer
Based In Kathmandu, Nepal
Experience 6+ Years
Phone +91 7070675425
Languages English · Hindi · Nepali
Status Open to opportunities
0+ Years building production systems
0 Products shipped across web & mobile
0 Engineers led at peak team size
0+ Cities served by GetDirect platform

A career journey
across six
engineering homes.

From a junior Laravel role in Kathmandu to leading a 10-engineer team, then architecting microservices and running engineering for an India-wide marketplace — six roles, one through-line: ship production systems that hold up.

  1. Feb 2026 — Present Remote

    Senior Full Stack Engineer

    Imaginovation

    Owning end-to-end delivery of two products in parallel: Talkative, a multi-role Speech-Language Pathology portal on Laravel 13 + Livewire 4 with Spatie roles, activity-log audit, and S3 media; and Butt Rub & Scrub, a self-service dog-wash IoT platform with MQTT/Nayax station control, Firebase OTP, Stripe subscriptions, and a Flutter companion app using Riverpod, Retrofit, and Google Maps.

    Laravel 13Livewire 4MQTTStripeFlutterRiverpod
  2. Feb 2023 — Feb 2026 Gurugram, IN

    Technical Head

    Alltechlabs Pvt. Ltd.

    Architected GetDirect as a microservice suite — a live food-delivery price-comparison platform across 200+ Indian cities. Chose Typesense for search, Ably for realtime, Razorpay for payments. Drove ONDC ecosystem integration (Buyer, Seller, Logistics) and built a price-comparison engine scraping Swiggy, Zomato, Magicpin, Uber Eats, and EatSure.

    MicroservicesONDCTypesenseAblyDockerSentry
  3. Feb 2022 — Feb 2023 Kathmandu, NP

    Full Stack Developer

    Uptechsys Pvt. Ltd.

    Led a 10-engineer team to deliver a Real Estate Trading platform with AWS Rekognition. Built an HR Management System with ZKTeco biometric integration and Hisaabkeeper accounting; delivered a multilingual Waste Management System with role-based access. Designed SEO-optimized school landing pages on Laravel Nova with Slack-webhook integrations.

    Team LeadAWS RekognitionLaravel NovaBiometrics
  4. Jan 2021 — Feb 2022 Kathmandu, NP

    Mid-Level PHP Developer

    Peepal International Pvt. Ltd.

    Designed microservice Admin / Customer / Seller dashboards for ePeepal, Nepal's multi-vendor marketplace. Drove a 30% performance boost and 40% downtime reduction via PWA, Redis, Laravel Horizon, and Laravel Nova. Stood up CI/CD on Bitbucket with Sentry and Slack integration; built SEO-optimized landing pages with international payment gateways.

    MicroservicesRedisHorizonPWA
  5. Jun 2021 — Sept 2021 Kathmandu, NP · PT

    Part-Time Laravel Developer

    Zenlab Pvt. Ltd.

    Built Digitalpalika, a multilingual eGovernance platform for civil registrations (Birth, Death, Migration, Marriage) deployed across local government bodies. Shipped NepoLive, a BigoLive-style live audio/video streaming app on Ant Media Server with wallet, gifts, credits, and ranking. Delivered the Mailo App backend for multi-restaurant management, farmers' eShop, and bakery delivery.

    eGovernanceAnt MediaStreaming
  6. Jun 2020 — Jan 2021 Kathmandu, NP

    Junior Laravel Developer

    Nectar Digit Pvt. Ltd.

    Shipped Gurudai (formerly Shreevahan), a ride-sharing platform with rider/customer apps, heatmap APIs for geo-sorted dispatch, and a Cargo Air Logistics system. Optimized SQL and indexes for 20× faster retrieval. Contributed to eNewspaper platforms (Aajakokhabar, CapitalNepal) and eShopping Nepal e-commerce.

    Ride-sharingSQL OptimizationHeatmaps

B.Tech in Computer Science & Engineering

Sanskriti University
2017 — 2021 CGPA · 8.1 / 10

I craft reliable systems
for the web, mobile, and
the things in between.

I take products from a blank schema to production traffic — owning architecture, backend, mobile, and the boring-but-vital parts (CI/CD, observability, payments) that decide whether you ship or stall.

01

Architecture & Backend

Laravel monoliths, microservice suites, Composer-distributed core packages, event-driven flows, and REST/GraphQL APIs. Built for clarity and rebuild-ability — not for showing off.

  • Laravel · Livewire · Node.js · Django
  • MySQL · PostgreSQL · Redis · MongoDB
  • Typesense · OpenSearch · Firestore
02

Cross-Platform Mobile

Production Flutter apps with bloc and Riverpod state, full Firebase suite, payments, maps, deep links, and crash-free observability. Live on iOS and Android in real markets.

  • Flutter · Dart · flutter_bloc · Riverpod
  • FCM · Crashlytics · Sentry · Microsoft Clarity
  • Stripe · Razorpay · Khalti · eSewa
03

IoT & Real-Time

MQTT-based device control, Nayax payment-station integration, Ably/Pusher realtime channels, audiometric tone generation, and Bluetooth medical-device connectivity.

  • MQTT · Nayax · Ant Media · Bluetooth
  • Ably · Pusher · WebSockets
  • Firebase RTDB · Hardware-aware flows
04

DevOps & Observability

Containerized services, automated deploys, and instrumentation that surfaces problems before users do — so 3am pages become rare instead of routine.

  • Docker · Bitbucket Pipelines · Jenkins
  • Sentry · Laravel Pulse · Horizon
  • Slack alerting · AWS · GCP · DigitalOcean

Tools I reach for, daily.

Languages & Frameworks

PHPLaravelLivewireDartFlutterPythonDjangoNode.jsNext.js

Architecture & Design

MicroservicesComposer PackagesEvent-drivenREST APIsONDC

Cloud & Infrastructure

AWS EC2/S3/LambdaGCPFirebaseDigitalOceanDockerMQTT

Databases & Search

MySQLPostgreSQLRedisMongoDBTypesenseOpenSearchFirestore

DevOps & Observability

Bitbucket PipelinesJenkinsSentryMS ClarityHorizonPulse

Payments & Realtime

StripeRazorpayKhaltieSewaIMEPayNICAsia CyberSourceAblyPusher

Mobile & Tooling

flutter_blocRiverpodJIRAdompdfTipTapSpatie SuiteAWS Rekognition

User-centered development approach
enhances productivity and
drives revenue growth.

Products and platforms I've architected or shipped — at Imaginovation, Alltechlabs, Uptechsys, Peepal International, Zenlab, and Nectar Digit — plus my own side projects and open source.

Talkative SLP Portal · Laravel 13 + Livewire 4

Talkative

2026 · Imaginovation

Multi-role Speech-Language Pathology portal — therapists, patients, organizations, and admins from a single Laravel 13 + Livewire 4 codebase with Spatie roles, activity-log audit, S3 media, and a TipTap-based content module.

Laravel 13Livewire 4SpatieS3TipTap
Butt Rub & Scrub IoT Dog-Wash · MQTT + Stripe

Butt Rub & Scrub

2026 · Imaginovation

Self-service dog-wash IoT platform — MQTT/Nayax station control, Firebase OTP, Stripe subscriptions, loyalty rewards, and a Flutter QR-access companion app with Riverpod, Retrofit, and Google Maps.

MQTTNayaxStripeFlutterRiverpod
GetDirect Food Price Comparison · 200+ cities

GetDirect

2023 — 2026 · Alltechlabs

Microservice suite (admin, seller, mobile API, analytics, comparison) with a Composer-distributed core package. Scrapes Swiggy, Zomato, Magicpin, Uber Eats & EatSure; ONDC integrated; iOS & Android Flutter app with flutter_bloc.

MicroservicesONDCTypesenseAblyRazorpay
Karn Arogyam Healthcare · Audiometry · Bluetooth

Karn Arogyam · Vernal Sounds

Side Project

Healthcare technology — hearing-aid web platform and Flutter companion for tinnitus therapy, plus a patient app for audiometry with Bluetooth medical-device connectivity.

Laravel 11FlutterBluetoothRazorpay
Sewa Sathi Home Services · Nepal

Sewa Sathi

Side Project

Home-services marketplace for Nepal — plumbing, electrical, cleaning, and salon — with Laravel 12 backend, Flutter customer + partner apps, Khalti/Razorpay payments, Sparrow SMS OTP, and Pusher real-time dispatch.

Laravel 12FlutterKhaltiPusher
AllezSportz Sports Marketplace · India

AllezSportz

Side Project

India's sports training marketplace — Laravel + Flutter on iOS & Android. Connects athletes, coaches, and sponsors across 6+ sports: booking, tournaments, verified athlete sponsorship, and equipment commerce.

LaravelFlutteriOS · Android
ePeepal Multi-vendor Marketplace · Nepal

ePeepal

2021 — 2022 · Peepal

Nepal's mass-market multi-vendor e-commerce marketplace — microservice Admin / Customer / Seller dashboards. Drove 30% performance boost and 40% downtime reduction via PWA, Redis, Laravel Horizon & Nova.

MicroservicesRedisHorizonNova
Gurudai Ride-sharing · Heatmap Dispatch

Gurudai · Shreevahan

2020 · Nectar Digit

Ride-sharing platform with rider and customer apps, heatmap APIs for geo-sorted dispatch, and a Cargo Air Logistics Management System. 20× SQL retrieval speedup via index and structure optimization.

Ride-sharingHeatmapsSQL
Digitalpalika eGovernance · Nepal

Digitalpalika

2021 · Zenlab

Multilingual eGovernance platform for civil registrations (Birth, Death, Migration, Marriage) deployed across local government bodies in Nepal.

eGovernanceMultilingual
NepoLive Live Streaming · Ant Media

NepoLive

2021 · Zenlab

BigoLive-style live audio/video streaming app for Nepal — wallet, gifts, credits, and ranking systems on Ant Media Server.

Ant MediaStreamingRealtime
Real Estate Trading AWS Rekognition

Real Estate Trading Platform

2022 · Uptechsys

Led a 10-engineer team to deliver an AI-assisted real-estate trading platform with AWS Rekognition integration; shipped on time with seamless deployment.

Team LeadAWS RekognitionLaravel
HR Management ZKTeco Biometrics

HR Management System

2022 · Uptechsys

Built an HR Management System with ZKTeco biometric device integration and Hisaabkeeper accounting; multilingual Waste Management System with role-based access.

BiometricsHisaabkeeperRBAC
Sound Generator Flutter Package · Open Source

Sound Generator for Flutter

Open Source

Authored and maintain. Now used in production for the Karn Arogyam audiometry module — drives clinical-grade tone generation in the patient app.

FlutterAudioOSS
Bing Image Extractor Laravel Package · Open Source

Bing Image Extractor

Open Source

Authored and published Composer package for programmatic Bing image lookups in Laravel apps.

LaravelComposerOSS

Leadership, Open Source & Certifications

Leadership

Engineering Leadership

Led a 10-engineer team at Uptechsys; held Technical Head responsibilities at Alltechlabs spanning architecture, code review, hiring input, and technology selection.

Community

Head Co-ordinator · GOFCA

Ground Zero Forum for Computer Application at Sanskriti University (200+ members). Drove 50% growth in participation. Organizer and Co-director of the 1st GOFCA Hackathon (2018).

Open Source

Sound Generator & Bing Image Extractor

Maintained Sound Generator for Flutter (used in production at Karn Arogyam); authored and published Bing Image Extractor for Laravel.

Certifications

Backend & DevOps

GitHub Actions for CI/CD · Linux Command Line · Build Laravel Apps Fast with Blueprint · AWS S3 · Oracle Database Foundations.

Certifications

Mobile & Languages

Getting Started with Flutter Development · Crash Course on Python · 100 Days of Code Python Pro Bootcamp.

Certifications

Process & Business

Agile with Atlassian Jira · Foundations of Digital Marketing & E-commerce. (Udemy, Coursera — 2022-2024)

I am eager to connect with you
and hear your thoughts.