Available for work

Abul Hassan
Sathuli.

Full-Stack Engineer building scalable web, mobile, and AI-powered products with measurable impact.

See my workContact me
React & Next.jsTypeScriptReact NativeNode.js & NestJSJava & SpringbootPostgreSQLLLM SystemsLangGraph & MCPRAG & pgvector
01 / About
AHS
the human

I build products that
scale & perform.

I’m an applied AI and full-stack engineer with 4 years of experience building scalable web, mobile, and intelligent developer platforms at Hy-Vee, Myntra, and Rakuten.

My recent work has focused on architecting agentic AI systems using LangChain, LangGraph, FastMCP, MCP, A2A, RAG, PostgreSQL, and pgvector to improve testing intelligence, developer onboarding, and feature discovery.

Alongside AI systems, I build production-grade interfaces and backend platforms with Next.js, React, Node.js, TypeScript, and Java/Springboot, translating complex workflows into reliable tools with measurable impact.

4+
years building
70%
faster load time
¥75M
client savings
02 / Skills

Tools of the trade.

JavaScriptTypeScriptReactNext.jsReact NativeExpoReduxZustandTailwind CSSTanStack StartTanStack QueryFrontend ArchitectureSSR / CSR / SSG / ISRA11yWCAG 2.1Jest & RTLPlaywrightWeb PerformanceDesign SystemsMicrofrontendsNode.jsNestJSExpress.jsPrismaJava / Spring BootHibernate / JPAREST APIsRedisPostgreSQLPythonMongoDBMongooseGraphQLSQLAlchemyLangChainLangGraphRAGLLM ApplicationsPrompt EngineeringMCPFastMCPA2AAgentic WorkflowsAI EvaluationGenAI TestingKnowledge GraphspgvectorGCPDockerVercelRenderSanityFirebaseAWS ECSAWS S3AWS ECRAWS PinpointAWS Route 53GitHub ActionsGrafanaSplunkTurborepoHLD / LLDMicroservicesDSAJavaScriptTypeScriptReactNext.jsReact NativeExpoReduxZustandTailwind CSSTanStack StartTanStack QueryFrontend ArchitectureSSR / CSR / SSG / ISRA11yWCAG 2.1Jest & RTLPlaywrightWeb PerformanceDesign SystemsMicrofrontendsNode.jsNestJSExpress.jsPrismaJava / Spring BootHibernate / JPAREST APIsRedisPostgreSQLPythonMongoDBMongooseGraphQLSQLAlchemyLangChainLangGraphRAGLLM ApplicationsPrompt EngineeringMCPFastMCPA2AAgentic WorkflowsAI EvaluationGenAI TestingKnowledge GraphspgvectorGCPDockerVercelRenderSanityFirebaseAWS ECSAWS S3AWS ECRAWS PinpointAWS Route 53GitHub ActionsGrafanaSplunkTurborepoHLD / LLDMicroservicesDSA
Languages & Frontend
  • JavaScript
  • TypeScript
  • React
  • Next.js
  • React Native
  • Expo
  • Redux
  • Zustand
  • Tailwind CSS
  • TanStack Start
  • TanStack Query
  • Frontend Architecture
  • SSR / CSR / SSG / ISR
  • A11y
  • WCAG 2.1
  • Jest & RTL
  • Playwright
  • Web Performance
  • Design Systems
  • Microfrontends
Backend & Data
  • Node.js
  • NestJS
  • Express.js
  • Prisma
  • Java / Spring Boot
  • Hibernate / JPA
  • REST APIs
  • Redis
  • PostgreSQL
  • Python
  • MongoDB
  • Mongoose
  • GraphQL
  • SQLAlchemy
AI & Automation
  • LangChain
  • LangGraph
  • RAG
  • LLM Applications
  • Prompt Engineering
  • MCP
  • FastMCP
  • A2A
  • Agentic Workflows
  • AI Evaluation
  • GenAI Testing
  • Knowledge Graphs
  • pgvector
Platform & Engineering
  • GCP
  • Docker
  • Vercel
  • Render
  • Sanity
  • Firebase
  • AWS ECS
  • AWS S3
  • AWS ECR
  • AWS Pinpoint
  • AWS Route 53
  • GitHub Actions
  • Grafana
  • Splunk
  • Turborepo
  • HLD / LLD
  • Microservices
  • DSA
03 / Projects

Projects I'm proud of.

Authentication & Identity

Auth Academy

An interactive learning platform designed to teach modern API authentication concepts (OAuth 2.0, JWTs, API Keys, and mTLS) through hands-on browser simulations. Built using TanStack Start (SSR), React, Drizzle ORM, Postgres, and Firebase to provide real-time sandboxes and progress tracking.

Live in Production
04 / Experience

Professional timeline.

  • Hy-Vee India Private Limited
    Bengaluru
    December 2025 — June 2026

    Software Engineer 2

    • Built and scaled an internal full-stack engineering platform using NestJS modular-monolith APIs, React/Next.js, TypeScript, and Python, reducing human intervention in regression workflows by 80% and improving release-validation efficiency.
    • Built internal workflow interfaces with React/Next.js, backend services, and GitHub-style approval flows, improving governance, reviewability, and adoption across 20+ developers and 5 product managers.
    • Designed and implemented a versioned PostgreSQL + pgvector application intelligence data layer to model product flows, dependencies, and testing knowledge, with the platform scoped to support 3000+ test suites/flows and 10,000+ test cases.
    • Developed a Retail Store Locator feature using geographic data and location-aware workflows, improving store discovery and location-based customer journeys.
    • Developed RAG-based onboarding and feature-discovery capabilities that reduced engineering ramp-up effort by approximately 2 man-days and improved internal developer experience.

    Project Links:

    Hy-Vee Web, Hy-Vee iOS App, Hy-Vee Android App
  • Myntra Designs Private Limited
    Bengaluru
    February 2025 — December 2025

    Software Engineer

    • Built internal full-stack marketing and content-management tools using React, Java-backed services, PostgreSQL, and modular service integrations, enabling teams to configure and deliver merchandising experiences across web and mobile.
    • Built backend-driven screen endpoints backed by Sanity CMS and GROQ, reducing unnecessary OTA releases and improving release efficiency for content-driven app changes.
    • Built a Quick Add-to-Cart experience and instrumented analytics/impression tracking, supporting adoption measurement across 1.5M users.
    • Automated unit-test generation workflows and improved engineering productivity by 40%, strengthening test adoption and delivery confidence.
    • Contributed to scalable merchandising and platform workflows across high-usage commerce surfaces, balancing configurability, maintainability, release efficiency, and service-oriented extensibility.
    • Worked with mobile-oriented frontend workflows and configurable UI delivery patterns to support faster experimentation, feature rollout, and maintainable release operations across commerce surfaces.

    Project Links:

    Myntra Web, Myntra iOS App, Myntra Android App
  • Rakuten India Enterprise Private Limited
    Bengaluru
    July 2022 — February 2025

    Software Engineer 1

    • Improved marketplace load time by 70% and user experience by 40% through architecture optimization and hybrid SSR/CSR design.
    • Built a design-token-based no-code onboarding platform supporting 70+ partners, saving approximately JPY 75M and reducing repeated engineering effort.
    • Worked on CI/CD setup with GitHub Actions and release-artifact maintenance to support agile release plans and more reliable production deployments.
    • Developed a reusable cross-browser PDF viewer adopted by 3+ teams, improving shared capability reuse across products.
    • Built reusable UI components and shared frontend architecture patterns that improved consistency, maintainability, and delivery speed across marketplace applications.
    • Supported frontend platform modernization efforts across large-scale commerce surfaces, strengthening component reuse, developer experience, and long-term scalability.
    December 2021 — June 2022

    Technical Intern

    • Developed a learning management system using React, TypeScript, and Context API.
    • Built a full-stack Rakuten NFT marketplace prototype within five days, demonstrating rapid end-to-end delivery.
    • Performed a visual regression analysis of the Rakuten NFT marketplace as a QA intern.

    Project Links:

    Rakuten NFT C2C Marketplace, Rakuten NFT B2C
05 / Credentials

Education & recognition.

Education

Bachelor of Engineering in Computer Science

Francis Xavier Engineering College, Tirunelveli, Tamil Nadu, India

86% · Graduated 2022

2025

Myntra Spot Award

Recognized for the GenAI-based unit-testing initiative.

2024

Rakuten Samurai Award

Recognized for developing a reusable in-house PDF viewer.

2023

Rakuten Excellence Award

Recognized for the design-token-based no-code onboarding architecture.

06 / Kind words

What people say about me.

“I had the pleasure of hiring Abul as a Software Engineer - II, and in just five months, he made an impact that most engineers take years to build. What immediately stood out was his ownership mindset — Abul didn't wait to be told what to do next. He understood the problem, made decisions, and drove things to completion. He shipped a critical feature end-to-end, navigating the full complexity from design to delivery with a level of sense of urgency that kept the team's momentum high. Technically, he's the real deal — strong fundamentals, clean thinking, and the ability to operate independently in ambiguous situations. But what truly sets Abul apart is the combination: strong technical depth paired with the kind of accountability and drive that's genuinely rare. Any team would be lucky to have him. I'd hire him again without hesitation.”

— Amit Goel, Director of Engineering at Hy-Vee India · Ex-Property Finder

“Abul’s greatest quality as an engineer is his growth mindset. He quickly adapts to new tools and challenges, takes ownership of the tasks, and continuously strive to become a better engineer. What stood out to me the most was his ability to tackle challenging problems with confidence and persistence.”

07 / Contact

Let's build something.

Got an idea, a project, or just want to say hi? Drop me a note — I read everything and reply within a day or two.

sathuli2710@gmail.com/in/sathuliabul