Hi, I'm M. A. Aftab Muddassir

Full Stack Developer & AI Enthusiast

Software Engineer with deep expertise in building scalable systems and exceptional debugging skills for tackling complex issues.

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About Me

Passionate about embedding AI capabilities into robust backend systems for next-generation applications

Your Name

Hello! I'm a Software Developer with experience in building secure, scalable, and high-performance applications. Skilled in Java, Spring Boot, Python, TypeScript, SQL, cloud services, and modern web frameworks, I’ve delivered real-time messaging platforms, optimized financial systems, and developed AI-powered analytics solutions. Passionate about creating software that combines performance, security, and intelligent data use.

Having engineered systems handling billions in transactions and optimized mission-critical APIs, my goal is to design innovative, reliable applications that merge performance, security, and intelligent data use empowering businesses to operate faster and smarter.

I'm always excited to take on new challenges and collaborate on innovative projects that push the boundaries of what's possible on the web.

Featured Post

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Skills & Expertise

Technologies I love working with

⚙️

Backend Development

Building robust server-side applications with Java, Spring Boot, Node.js, NestJS, Python, and various databases.

🌐

Frontend Development

Creating responsive, interactive user interfaces with Angular, React, Vue.js, and modern CSS frameworks.

🤖

LLM Integration

Integrating language models and AI capabilities into enterprise level scalable applications.

☁️

Cloud & DevOps

Deploying and managing applications on AWS, Google Cloud, and implementing CI/CD pipelines.

🔍

Testing & Observability

Production bugfix expertise through RCA using Splunk, CloudWatch. Comprehensive testing with JUnit 5, Mockito, and Postman.

Professional Experience

Building impactful solutions across different domains

May 2025 - August 2025

Software Engineering Intern

Marketeq Digital, Florida, USA
  • Developed core reactive modules for a messaging platform using Spring WebFlux, maintaining sub-100ms latency for real-time delivery. Leveraged Claude to accelerate the development of complex Project Reactor stream logic
  • Reduced server overhead by 40% by implementing an S3 Pre-signed URL strategy; this enabled direct-to-cloud uploads for files up to 500MB, effectively bypassing JVM heap bottlenecks
  • Integrated a hybrid encryption layer using Java Cryptography Architecture (JCA); utilized AES-256 GCM for message payloads and RSA for secure key exchange, managed via Spring Cloud Config
  • Standardized system workflows by authoring OpenAPI 3.0 (Swagger) specifications and a technical guide on Spring Bean lifecycles, reducing new-hire onboarding time by 30%
Spring Boot PostgreSQL AWS S3 JWT E2EE Swagger
Dec 2021 - July 2024

Software Engineer

LTIMindtree, Hyderabad, India
  • Engineered a 20% increase in payment microservice throughput by fine-tuning Spring Boot thread pool configurations and resolving Hibernate N+1 query inefficiencies
  • Achieved a 40% reduction in API latency by implementing a Redis Cache-Aside pattern and integrating Resilience4j circuit breakers to maintain availability during peak traffic
  • Orchestrated the migration of 20 years of legacy data for 500+ boutiques to AWS RDS (PostgreSQL); redesigned complex schemas and optimized JPA queries to handle high-concurrency inventory transactions
  • Developed Spring Batch pipelines processing 3M+ daily transactions with 99.9% reliability using chunk-based processing and custom ItemProcessors
  • Slashed SLA breaches by 30% through deep-dive Root Cause Analysis (RCA) and automated Splunk/CloudWatch alerting for proactive incident detection
Spring Boot Microservices SQL REST APIs Performance Tuning Agile
Aug 2021 - Dec 2021

Software Engineering Intern

LTIMindtree, Hyderabad, India
  • Assisted in the development of core payment modules and wrote comprehensive unit tests using JUnit 5 and Mockito to ensure 85%+ code coverage
  • Collaborated with senior engineers to identify and resolve slow-running SQL queries, gaining hands-on experience in Index optimization and Hibernate profiling
  • Contributed to the maintenance of Spring Cloud microservices and supported legacy data cleanup tasks during the initial phases of the cloud migration project
JUnit 5 and Mockito Spring Cloud REST APIs JSON/XML UAT Testing

Awards & Certifications

Recognition and achievements

🤖

Oracle Cloud Infrastructure 2025 Certified AI Foundations Associate

Oracle
2025

The Oracle Cloud Infrastructure (OCI) AI Foundations certification is designed to introduce learners to the fundamental concepts of artificial intelligence (AI) and machine learning (ML), with a specific focus on the practical application of these technologies within the Oracle Cloud Infrastructure.

☁️

AWS Certified Cloud Practitioner

Amazon Web Services
2024

Foundational certification demonstrating comprehensive understanding of AWS Cloud concepts, core services, security, architecture, pricing, and support. Validated knowledge of cloud computing principles and AWS platform capabilities.

🏆

Spot On - Master Mind Award

LTIMindtree
2023

Honored for outstanding contributions in delivering a crucial module essential for the project's successful deployment. Working closely with clients at their location, meticulously understood requirements and developed high-quality code. Earned client praise and ensured project success through relentless efforts and dedication to client satisfaction.

⭐

Oracle Certified Professional, Java SE

Oracle
2022

Certified in Java SE development, demonstrating proficiency in core Java concepts and enterprise application development.

Featured Projects

Some of my recent work

ScholarHouse

ScholarHouse - Housing Marketplace

Full-stack housing marketplace with AI-powered roommate matching, real-time messaging, and OAuth 2.0 authentication. Features Stripe integration and multi-channel notifications.

Next.js FastAPI PostgreSQL OAuth 2.0
Private Repository
Hifdh Quest

Hifdh Quest

Real-time multiplayer Quran memorization platform featuring fastest finger buzzer system, 5 question types, and gamified learning experience.

React Spring Boot PostgreSQL WebSocket
GitHub
Customer Insights & Segmentation Dashboard

Customer Insights & Segmentation Dashboard

A comprehensive dashboard for visualizing customer data and segmenting users based on behavior.

Streamlit Python Postgres Pandas
GitHub
Client-Server Chat Application

Client-Server Chat Application

Designed a real-time chat application with user authentication and message encryption with client-server chat system using raw TCP sockets including broadcast messaging support.

C++ Socket.io TCP/IP Linux
Private Repository
Point of Sales Application

Point of Sales Application

At LTIMindtree I worked in a microservice based Point of Sales Spring Application for a leading retail jewelry business. The system was developed to serve 500+ boutiques across the country and abroad with millions of requests being served concurrently

Java Spring Boot MS SQL Server AWS
Company Project

Let's Work Together

Have a project in mind? Let's discuss it!

Get in touch

📧
Email
m.aftab.muddassir07@gmail.com
📱
Phone
+1 (716) 228-5274
📍
Location
New York, NY (Open to relocation in the US)