Portfolio / 2025 — 2026 Backend Architecture · Spring Boot Karachi, PK · 00:00 PKT · Available

Backend

Architect,

Systems

Thinker.

// ROLE

Java · Spring Boot · Microservices
Kafka KRaft · gRPC · RAG Systems

Building backend systems with real deployment behavior. Clean service boundaries. Infrastructure as Code. Implementation depth over surface-level features.
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(01) — Index

About / Profile

§ 01.01

Statement

Java backend developer focused on Spring Boot, secure REST APIs, and distributed systems. I build backend-heavy architectures involving retrieval augmented generation, event-driven microservices, and Infrastructure as Code. I care about p99 latencies, fault isolation, and clean service boundaries.

0⁺

Live RAG Requests Served

B.E. Software Eng · CGPA

01^st

AWS OctoberFest Hackathon

(02) — Practice

Experience —

§ 02.01

/ 01

React Native Intern

Octaloop Technologies

Worked in a 5-member development team to design and deliver a mobile application under senior guidance.
Developed application features in React Native — API consumption, state management, and user-facing workflows.
Collaborated with backend services to verify authentication behavior, data consistency, and client-server interaction paths.
Participated in code reviews, feature discussions, and debugging sessions.

May 2025 — Jul 2025
I-11, Islamabad

(03) — Built

Selected Projects

§ 03.01 — 03.03

P / 01

SofiCheck

Spring Boot Spring AI Qdrant ONNX bge-m3 MongoDB React

RAG-based final year project similarity checker. Semantic retrieval against archived department catalogues, before LLM generation.

Ingested PDFs into Qdrant using local ONNX bge-m3 transformer embeddings for titles, abstracts, and technologies.
Integrated Groq-hosted chat models via Spring AI's OpenAI-compatible client for structured similarity ratings.
Added request observability with a Spring AI Advisor logging token usage and metadata into MongoDB.
Deployed backend on Azure VM — served 187 requests with 200 OK over a 30-day live trial.

View live →

→ semantic retrieval

qdrant · onnx · groq

187

P / 02

PulseTrack

Microservices Kafka KRaft gRPC AWS CDK LocalStack Docker

Distributed healthcare backend. Patient creation triggers billing, analytics, and notification workflows through event-driven service communication.

Separated core operations into independent Spring Boot services. Used Kafka KRaft (Zookeeper-less) for async downstream processing.
gRPC for explicit internal contracts. JWT-based security centralized at the API Gateway boundary.
Managed Infrastructure as Code (IaC) using AWS CDK in Java, deployed to LocalStack Pro simulating real AWS ECS Fargate.
Wrote a custom Java concurrent load tester (ExecutorService) to measure p50/p95/p99 latencies under heavy concurrent bursts.

View code → Read Engineering Journal →

P / 03

Docspot

React Native Spring Boot MongoDB OAuth2 WebSockets

Mobile appointment application built during an on-site internship to digitize scheduling and reduce manual coordination.

Spring Boot backend centralizing appointment data, OAuth2 (Google) authentication, and RBAC.
Integrated WebSocket/WebRTC signaling for real-time, secure voice calling between patients and doctors.
Delivered within internship timeline across mobile and backend contributors.

View code →

(04) — Tooling

Skills & Stack

§ 04.01

Languages

Java Python JavaScript TypeScript

Backend & APIs

Spring Boot Spring Security Spring AI Spring Cloud Gateway Hibernate REST gRPC

Architecture

Microservices Event-Driven RAG Systems Kafka KRaft AWS CDK (IaC)

Data

PostgreSQL MySQL MongoDB Qdrant

DevOps

Docker LocalStack Pro Azure VM Flyway Vercel

Frontend & Mobile

React React Native Vite Tailwind Redux

§ 05.01 — Education

Mehran University of Engineering & Technology

B.E. Software Engineering

Aug 2023 — Oct 2027 · Jamshoro, Sindh

CGPA 3.28 · Focused on backend systems, distributed architecture, and applied machine learning integration patterns.

§ 05.02 — Leadership

Hackathon Winner

AWS OctoberFest · Team Lead

Oct 2025 · Lowkey Legends

Led feature ownership and execution across contributors. Designed Spring Boot backend with MySQL + Flyway migrations, containerized with Docker multi-stage builds and Docker Compose. Delivered within hackathon timeline.

Backend Architect, Systems Thinker.