Available for Full-Stack & AI Engineering Roles (Remote / Global)

Engineering deterministic AI systems and high‑throughput web architectures.

I am Hemil Rajput, a Full-Stack & AI Product Engineer. I build autonomous LLM workflows, scalable backend infrastructure in Python, Node.js, and Laravel, and developer tooling like laravel-typegen.

View Architecture & Work github.com/hemilrajput

100%Type-Safe Contracts

<95msp95 API Latency

<1.2%Agent Failure Rate

CLI Terminal · bash 5.2READY

$php artisan typegen:generate

✓ Scanned 24 Eloquent Models

✓ Resolved 58 Model Relationships

✓ Traversed 12 PHP 8 Enums & Database Casts

→ Generated types/models.d.ts in 42ms

Contract verification: 0 drift errorsCI pass

OPEN-SOURCE CREATOR & MAINTAINER · v1.2.4 MIT License

GitHub ↗·Packagist ↗·Documentation ↗

laravel-typegen — Zero-Drift TypeScript Contract Generator

The Bottleneck

Manual synchronization between backend Laravel Eloquent models/enums and frontend TypeScript interfaces causes contract drift, silent runtime crashes, and wasted engineering cycles.

The Solution

Built an AST and static Reflection CLI engine that traverses Eloquent schemas, relational graphs, and PHP 8.1+ Enums to automatically compile strictly typed TypeScript declarations with zero runtime overhead.

100%Type Safety

0msRuntime Cost

ASTStatic Engine

app/Models/User.php (Eloquent Input)PHP 8.2

class User extends Authenticatable {
    protected $casts = [
        'status' => UserStatus::class,
        'verified_at' => 'datetime',
    ];

    public function posts(): HasMany {
        return $this->hasMany(Post::class);
    }
}

⚡ Auto-Compiled via laravel-typegen in 42ms

types/models.d.ts (Strict TypeScript Output)100% In Sync

export type UserStatus = 'active' | 'suspended' | 'pending';

export interface User {
    id: number;
    status: UserStatus;
    verified_at: string | null;
    posts?: Post[];
    created_at: string;
}

PROVEN PRODUCTION ENGINEERING

Featured Architectural Case Studies

Deep technical dissections of production systems designed for determinism, scale, and high availability under load.

01 //AI SYSTEMS ENGINEERING

Autonomous Multi-Agent Workflow & RAG Execution Engine

The Bottleneck

Brittle sequential prompt wrappers hallucinate JSON, drop tool arguments, and fail unpredictably on complex multi-step workflows, causing ~18% edge-case execution failure rates.

Architectural Decisions

›Cyclic State Orchestration: Built cyclical execution graphs via LangGraph & FastAPI, routing requests through specialized sub-agents with automated self-correction loops.
›Deterministic Contracts: Enforced strict Pydantic v2 JSON Schema constraints on all tool calling outputs, guaranteeing 0% schema hallucination.
›Hybrid Vector Retrieval: Combined PostgreSQL pgvector embeddings with BM25 keyword ranking and Redis caching, cutting retrieval latency by 55%.

Python (FastAPI)LangGraphClaude / OpenAI APIPydantic v2pgvectorRedisDockerLangfuse

<1.2% Execution Failure Rate|p90 Latency: Sub-3s

Architecture Topology ACTIVE

Input Layer

[ Client Request / Webhook ]

FastAPI Gateway

Rate Limiter · Auth · SSE Stream

LangGraph Orchestrator (Cyclic State)

pgvector

Hybrid RAG

Redis

State & Cache

[ Validated Deterministic Output (Pydantic v2) ]

02 //DISTRIBUTED SYSTEMS & CLOUD ARCHITECTURE

High-Concurrency Multi-Tenant Cloud Platform

The Bottleneck

Database lock contention during burst traffic and synchronous reporting/notification tasks caused severe p95 latency spikes exceeding 680ms and intermittent connection timeouts.

Architectural Decisions

›Multi-Tenant Partitioning: Implemented tenant-scoped ORM middleware with composite database indexes (tenant_id, created_at, status), cutting query scan times by 74%.
›Asynchronous Worker Cluster: Offloaded heavy I/O workloads (PDF exports, webhooks, broadcast dispatch) to Redis/BullMQ worker instances with exponential backoff and dead-letter queues.
›Containerized Zero-Downtime CI/CD: Packaged services into Docker containers and automated zero-downtime rolling deployments to AWS ECS via GitHub Actions.

Modern LaravelNode.jsNext.jsPostgreSQLRedis QueuesAWS (ECS, S3, RDS)DockerGitHub Actions

p95 Latency: <95ms|99.98% Service Uptime

Distributed Topology SCALED

Traffic Ingestion

[ AWS Application Load Balancer ]

ECS Fargate Cluster

Modern Laravel + Node Microservices

Persistence & Asynchronous Pipeline

Redis / BullMQ

Async Queues

PostgreSQL RDS

Compound Index

[ p95 Latency: <95ms · Zero Downtime Rolling Deploy ]

CORE ARCHITECTURAL PILLARS

Architectural Capability Matrix

Production-hardened across four core engineering domains—combining deterministic AI workflows with low-latency distributed backends.

AI & Agentic Systems

Production LLM

Designing multi-step autonomous agents with deterministic JSON schemas, human-in-the-loop checkpoints, and token cost observability.

LangGraphTool CallingStructured OutputsRAG PipelinespgvectorPrompt EvalsLangfuse

Backend & Distributed Systems

High-Throughput

Architecting multi-tenant backends, asynchronous job queues, caching layers, and sub-100ms database query optimizations.

Python (FastAPI)Node.jsModern LaravelPostgreSQLRedis QueuesREST / Webhooks

Frontend & Developer Experience

Type-Safe

Building responsive, zero-layout-shift web applications and custom CLI developer tooling that bridges backend and frontend contracts.

TypeScriptNext.js (App Router)ReactTailwind CSSAST CodegenState Management

Cloud, DevOps & Infrastructure

Automated Delivery

Containerizing microservices and automating test-to-production deployment pipelines with full server monitoring and security hardening.

DockerAWS (ECS, S3, RDS)GitHub Actions CI/CDNginxLinux AdminZero-Downtime

CAREER TRACK RECORD

Engineering Experience & Systems Ownership

Every milestone is defined by architectural ownership, measured latency reductions, and production reliability.

Senior Full-Stack & AI Engineer @ cWiser InfoTech

Nov 2025 – Present · Full-time

Ahmedabad, Gujarat, India · Remote · Full-Stack Architecture, AI Workflows & Cloud Infra

›Architect and ship scalable full-stack web applications and RESTful APIs using modern Laravel, Vue 3, TypeScript, and Node.js.
›Design internal AI workflow automation and deterministic LLM tool-calling pipelines using Python and Claude/OpenAI APIs, cutting manual data processing and QA overhead by 60%.
›Optimize MySQL/PostgreSQL query execution paths, composite indexing, and Redis caching/queues to sustain high concurrency and sub-100ms latency.
›Own AWS cloud infrastructure (EC2, RDS, S3), Docker containerization, and GitHub Actions CI/CD pipelines for zero-downtime production releases.

LaravelTypeScriptVue.jsPythonAI WorkflowsNode.jsPostgreSQLRedisDockerAWS

Senior Full-Stack Engineer @ Quarec IT Solutions

Aug 2023 – Nov 2025 · Full-time

Ahmedabad, Gujarat, India · On-site · Core Platform Engineering & Tooling

›Built full-stack applications across Laravel, Node.js, React.js/Next.js, and Vue.js for enterprise and high-traffic clients.
›Created and open-sourced laravel-typegen, an AST-powered CLI tool that automates TypeScript type generation from Eloquent models, saving 40%+ integration time across frontend teams.
›Optimized PostgreSQL query execution paths and implemented layered Redis caching, reducing p95 API response times from 680ms to <95ms.

LaravelNode.jsReact.js / Next.jsVue.jsTypeScriptPostgreSQLRedisDocker

Frontend & API Integration Engineer (Consultant) @ GladMinds Solutions

Feb 2024 – Oct 2024 · Part-Time Contract

Remote · Responsive Frontend Engineering & REST Integrations

›Built responsive user interfaces with Vue.js and integrated them with backend REST APIs.
›Developed reusable, modular component architecture and streamlined reactive state management using Vue.js and TailwindCSS.
›Optimized frontend client data caching and network request lifecycles, reducing redundant API requests by 55%.

Vue.jsJavaScriptTypeScriptREST APIsTailwindCSSHTML5/CSS3

Full-Stack Web Developer & UI/UX Engineer @ Alight Consultants Private Limited

Nov 2022 – Aug 2023 · Full-time

Ahmedabad, Gujarat · On-site · Custom PHP Applications & Design Systems

›Engineered custom PHP/MySQL web applications, bespoke CMS extensions, and backend database optimizations for commercial client platforms.
›Designed end-to-end UI/UX wireframes and reusable component systems in Figma, translating them into responsive frontend architectures.
›Enforced strict input validation, SQL query optimization, and endpoint security hardening across production deployments.

PHPJavaScriptMySQLFigmaUI/UX SystemsREST APIsCSS3

Web Application Developer @ web999 india

Jul 2020 – Nov 2022 · Full-time

Ahmedabad, Gujarat, India · On-site · E-Commerce & API Integrations

›Built high-performance PHP web applications and e-commerce systems integrated with third-party payment, booking, and notification REST APIs.
›Engineered custom themes, plugins, and checkout workflows backed by optimized MySQL schemas.
›Managed Linux hosting environments, DNS configuration, SSL provisioning, and automated database backup routines.

PHPJavaScriptMySQLPayment APIsLinux HostingHTML5/CSS3