ajay@production-server: ~
ajay@backend:~$ whoami

Ajay Kumar Joshi — Senior Backend Engineer

 
ajay@backend:~$ uptime
career up 9+ years, building PHP/Laravel systems since 2017 · load average: SaaS platforms, REST APIs, enterprise integrations
 
ajay@backend:~$ cat /etc/motd
I design and ship backend systems that stay up: multi-tenant SaaS, ERPs,
AI-powered search (RAG + vector search), event-driven architectures on NATS,
and MySQL clusters that stopped crashing when I got to them.
 
ajay@backend:~$
9+years in backend engineering
28K+monthly service tickets on the platform I architected
0daily MySQL OOM crashes after my ProxySQL cluster redesign
13K+active users on the Sesame Workshop India app backend

$ curl -s https://ajayjoshi.dev/api/v1/engineer | jq # about this Laravel backend engineer

{
  "name": "Ajay Kumar Joshi",
  "role": "Senior Backend Engineer",
  "location": "Mathura, UP, India",
  "experience_years": 9,  // and counting
  "specialties": [
    "Multi-tenant SaaS & ERP architecture",
    "AI-powered search: RAG, semantic & vector (Typesense)",
    "Event-driven systems: NATS, queues, webhooks",
    "MySQL scaling: replication, ProxySQL, query tuning",
    "REST API design & enterprise integrations"
  ],
  "learning": "Golang",  // already shipping external services with it
  "philosophy": "Boring, reliable systems beat clever, fragile ones.",
  "education": [
    "MCA — Rajiv Academy for Technology & Management (2014)",
    "BCA — GLA Institute of Professional Studies (2011)"
  ],
  "status": "open_to_senior_backend_and_tech_lead_roles"
}

$ docker compose ps # the Laravel & PHP stack I run in production

app — core backend

  • PHP 8.x · Laravel 5.x–11 · Lumen
  • FilamentPHP · Livewire · REST APIs
  • WebSockets · Golang (external services)

data — persistence

  • MySQL · replication · ProxySQL
  • PostgreSQL · MongoDB · Redis
  • Firestore · BigQuery (analytics)

search — AI

  • Typesense (self-hosted)
  • RAG · semantic · vector search
  • OpenAI structured outputs

events — async

  • NATS event publishing
  • Laravel Queues · Horizon · Supervisor
  • Octane · Reverb · scheduled jobs

infra — deploy

  • Docker · Docker Compose · Nginx
  • AWS (EC2, S3, IAM, Route53)
  • Cloudflare Workers/R2/D1 · OCI
  • DigitalOcean
  • Self-hosted VPS · Coolify · Portainer
  • GitHub Actions CI/CD

integrations — external

  • MS Dynamics 365 Business Central
  • Shopify · WhatsApp · Facebook Graph
  • RazorPay · Shipmondo · Dinero · SMS

frontend — when needed

  • React.js · Inertia.js · Next.js
  • Gatsby · Strapi CMS · Blade

$ git log --oneline --career # 9+ years as a backend developer

a1b2c3d (HEAD -> main)

Senior Software Developer · OutDo Solutions LLP, Noida

July 2022 — Present
  • Re-architected MySQL infra for 4 read-heavy apps: master-replica cluster + ProxySQL — killed daily OOM crashes and connection-pool exhaustion
  • Shipped "Warp AI Search & Filter" Shopify app — RAG + semantic/vector search on Typesense
  • Built complete ERP for Danish client (probatteri.dk): Laravel 11, Livewire, Shipmondo, Dinero, two-way multi-number SMS, 5-year warranty tracking
  • Architected national-level GLEN Service Ticket platform — 28,000+ tickets/month, WhatsApp automation + call-center/dealer intake
  • Mentor a team of 3–4 developers; technical interview panel
  • Designed multi-tenant Vendor Management SaaS integrating MS Dynamics 365 Business Central
  • Built WhatsApp Flow Builder (Laravel + React + Inertia) and WhatsApp Automation SaaS with Shopify + RazorPay
  • Maintain internal Laravel packages; NATS event publishing; external services in Golang
e4f5a6b

Senior Developer · Team MP2IT Pvt. Ltd., Mathura

October 2019 — June 2022
  • Built scholar-management CRM with Laravel WebSockets for real-time dashboards
  • Built attendance system in Livewire + Chrome extension for punch-in/out (REST API + Sanctum)
  • Shipped headless-CMS sites (Strapi + Next.js/Gatsby + React) with custom API integrations
  • Managed self-hosted VPS infrastructure — deploys, SSL, backups
  • Mentored 4–5 junior developers; technical hiring panel
c7d8e9f

Web Developer · IQuinceSoft Pvt. Ltd., Mathura

July 2017 — October 2019
  • Membership module in CodeIgniter; Core PHP / Smarty maintenance
  • WordPress REST API + React SPA builds; WooCommerce store deployed on AWS

# Selected work — Laravel SaaS, ERP & AI search projects in production

EDTECH

Sesame Workshop India — App Backend

Backend (css.sesameworkshopindia.org) powering the published Sesame Android app with 13,000+ active users — FilamentPHP admin, Firestore analytics, BigQuery daily metrics and partner-funnel reports, CMS-driven gamification with videos and quizzes.

FilamentPHPLaravelFirestoreBigQuery
INFRA

MySQL Cluster Re-Architecture

Four read-heavy production apps crashed MySQL with OOM errors daily. Designed a self-hosted master-replica cluster fronted by ProxySQL for connection pooling and read/write splitting. Crashes: zero since.

MySQLProxySQLReplicationSelf-hosted
SHOPIFY APP

Warp AI Search & Filter

AI-powered product search and filtering for Shopify merchants — RAG pipeline with semantic and vector search on Typesense, edge components on Cloudflare Workers + D1.

ShopifyTypesenseRAGCF WorkersD1
ERP

Probatteri ERP (Denmark)

Complete ERP for a Danish battery-service business (probatteri.dk): Shipmondo shipping, Dinero accounting, two-way SMS across multiple numbers, 5-year warranty lifecycle, and scheduled queue jobs for customer status SMS.

Laravel 11LivewireShipmondoDinero
AUTOMATION

GLEN Service Ticket Automation

National-level service-ticket platform processing 28,000+ tickets monthly — WhatsApp Business API automation alongside call-center and dealer entry, with modular packages for private incentives, Firebase push, SMS, Amazon Seller API, and MS Dynamics integrations.

WhatsApp APIFirebaseAmazon Seller APIPackages
B2B

WhatsApp Flow Builder

Drag-and-drop WhatsApp conversation-flow builder for a B2B client (Netcarrot) — Laravel backend with a React + Inertia.js editor UI.

LaravelReactInertia.js
EDTECH

Likhe Academy — App Backend

FilamentPHP backend (likheapp.techstreet.in) for the published Likhe Android app — dockerized with dedicated queue workers, self-hosted Typesense (typo-tolerant instant search over millions of words, indexed via observers + jobs), and OpenAI structured outputs turning uploaded documents into word definitions.

FilamentPHPTypesenseOpenAIDocker
HEALTH

Matrisha Health Platform

Patient-data platform (matrisha.org) for community health workers — Remix dashboard, Lumen microservice backend on MongoDB, REST APIs for the mobile app, role-based access for ASHA, ANM, and doctor users.

RemixLumenMongoDBREST API
GEO

OSRM Routing Service

Self-hosted OSRM route service (map.digisty.com) powering technician travel-distance calculations for CRM field-service workflows — no per-request fees to Google.

OSRMSelf-hostedRouting
SaaS

Vendor Management Platform

Multi-tenant vendor onboarding, approval workflows, and role-based access (vms.glenindia.com) — synced with Microsoft Dynamics 365 Business Central so finance and procurement work off one source of truth.

LaravelMySQLBusiness CentralRedis

$ curl -X POST https://ajayjoshi.dev/api/v1/contact # hire this Laravel developer

HTTP/1.1 200 OK
Content-Type: application/json

{
  "email": "ajayjoshi.mtr@gmail.com",
  "phone": "+91-9045167596",
  "github": "github.com/Ajay-joshi-mtr",
  "linkedin": "linkedin.com/in/ajay-joshi-mtr",
  "response_time": "< 24h",
  "open_source": ["PolymorphicHistory", "fast2sms"],
  "open_to": ["Senior Backend roles", "Tech Lead roles"]
}