Haffee.

Home
/Experience
/Skills
/Projects
/Education
/Publications
Let's Talk
Hello, I'm

Hafeez Mohamad

A

Driven by a passion to decipher the world built on 0's and 1's, I thrive on creating impactful solutions through technology, crafting products that inspire change and innovation.

LinkedInGoogleGitHubLeetcodeX
Hafeez Cover Image
My Career Path

Professional Experience

Collaborated with multiple international clients to architect, optimize, and maintain scalable software solutions across diverse tech stacks.

Key Projects & Clients
Lovelight
Lovelight
ReactNext.jsNode.jsMySQLGitHub Actions
  • ▹Built 3 freight integration services with idempotent event handling for distributed supplier APIs, reducing manual tracking overhead by 80%.
  • ▹Optimized high-traffic pricing APIs by redesigning request contracts to transmit minimal identifiers, achieving a 350x payload reduction and higher throughput.
  • ▹Designed and deployed CI/CD pipelines with GitHub Actions, cutting manual deployment effort by 90%.
Mindvalley
Mindvalley
PythonBigQueryAirflowDBTGoogle Cloud
  • ▹Built a centralized self-serve analytics platform by integrating 5+ data sources (Stripe, Zuora) into BigQuery using Airflow, DBT and Fivetran improving reporting accuracy by 75% for over 200 business users.
  • ▹Refactored 3K+ lines of SQL into a dimensional star schema, reducing query latency by 40% and ETL runtime by 30%.
ReadyTech
ReadyTech
PythonAI/MLRAG
  • ▹Built an AI-powered web application to automate Recognition of Prior Learning (RPL) workflows, replacing manual student submissions and assessor reviews.
  • ▹Implemented automated evidence analysis and qualification matching aligned with Australian government standards, reducing RPL processing time by 95%.
Times Educational Supplement (Tes)
Times Educational Supplement (Tes)
AWSLambdaEC2SSM
  • ▹Maintained operational stability of a critical School Management System by executing 3 major AWS upgrade cycles serving 250+ schools.
  • ▹Automated SSL certificate renewals and SSM agent deployments using AWS Lambda, improving infrastructure reliability and operational efficiency.
My Arsenal

Technical Skills

Go

C

C++

Python

JavaScript

TypeScript

Java

13 Categories49 Technologies
Problem Solving

Data Structures & Algorithms

Max Rating2,019
LeetCode Knight Badge
LevelKnight
Global Ranking29,475/865,650
Attended5

Overview

View Profile ↗
539/3901
Solved
Easy125/937
Medium341/2041
Hard73/923

808 submissions in the past year

Total active days: 364

Max streak: 244

1 submissions on 2025-04-13
1 submissions on 2025-04-14
1 submissions on 2025-04-15
2 submissions on 2025-04-16
1 submissions on 2025-04-17
4 submissions on 2025-04-18
1 submissions on 2025-04-19
1 submissions on 2025-04-20
1 submissions on 2025-04-21
2 submissions on 2025-04-22
4 submissions on 2025-04-23
5 submissions on 2025-04-24
1 submissions on 2025-04-25
1 submissions on 2025-04-26
1 submissions on 2025-04-27
2 submissions on 2025-04-28
1 submissions on 2025-04-29
2 submissions on 2025-04-30
2 submissions on 2025-05-01
4 submissions on 2025-05-02
1 submissions on 2025-05-03
Apr
6 submissions on 2025-05-04
1 submissions on 2025-05-05
9 submissions on 2025-05-06
4 submissions on 2025-05-07
4 submissions on 2025-05-08
7 submissions on 2025-05-09
7 submissions on 2025-05-10
1 submissions on 2025-05-11
15 submissions on 2025-05-12
8 submissions on 2025-05-13
9 submissions on 2025-05-14
6 submissions on 2025-05-15
3 submissions on 2025-05-16
5 submissions on 2025-05-17
1 submissions on 2025-05-18
6 submissions on 2025-05-19
4 submissions on 2025-05-20
4 submissions on 2025-05-21
1 submissions on 2025-05-22
4 submissions on 2025-05-23
1 submissions on 2025-05-24
2 submissions on 2025-05-25
3 submissions on 2025-05-26
6 submissions on 2025-05-27
1 submissions on 2025-05-28
2 submissions on 2025-05-29
2 submissions on 2025-05-30
1 submissions on 2025-05-31
May
2 submissions on 2025-06-01
2 submissions on 2025-06-02
3 submissions on 2025-06-03
1 submissions on 2025-06-04
5 submissions on 2025-06-05
1 submissions on 2025-06-06
1 submissions on 2025-06-07
12 submissions on 2025-06-08
1 submissions on 2025-06-09
5 submissions on 2025-06-10
4 submissions on 2025-06-11
4 submissions on 2025-06-12
3 submissions on 2025-06-13
4 submissions on 2025-06-14
9 submissions on 2025-06-15
2 submissions on 2025-06-16
2 submissions on 2025-06-17
1 submissions on 2025-06-18
1 submissions on 2025-06-19
1 submissions on 2025-06-20
5 submissions on 2025-06-21
1 submissions on 2025-06-22
2 submissions on 2025-06-23
1 submissions on 2025-06-24
2 submissions on 2025-06-25
1 submissions on 2025-06-26
1 submissions on 2025-06-27
1 submissions on 2025-06-28
1 submissions on 2025-06-29
1 submissions on 2025-06-30
1 submissions on 2025-07-01
1 submissions on 2025-07-02
1 submissions on 2025-07-03
8 submissions on 2025-07-04
1 submissions on 2025-07-05
Jun
5 submissions on 2025-07-06
14 submissions on 2025-07-07
5 submissions on 2025-07-08
2 submissions on 2025-07-09
6 submissions on 2025-07-10
4 submissions on 2025-07-11
5 submissions on 2025-07-12
1 submissions on 2025-07-13
4 submissions on 2025-07-14
4 submissions on 2025-07-15
5 submissions on 2025-07-16
6 submissions on 2025-07-17
2 submissions on 2025-07-18
3 submissions on 2025-07-19
6 submissions on 2025-07-20
3 submissions on 2025-07-21
6 submissions on 2025-07-22
2 submissions on 2025-07-23
1 submissions on 2025-07-24
3 submissions on 2025-07-25
4 submissions on 2025-07-26
5 submissions on 2025-07-27
2 submissions on 2025-07-28
1 submissions on 2025-07-29
1 submissions on 2025-07-30
1 submissions on 2025-07-31
1 submissions on 2025-08-01
4 submissions on 2025-08-02
Jul
3 submissions on 2025-08-03
1 submissions on 2025-08-04
1 submissions on 2025-08-05
1 submissions on 2025-08-06
1 submissions on 2025-08-07
1 submissions on 2025-08-08
5 submissions on 2025-08-09
1 submissions on 2025-08-10
0 submissions on 2025-08-11
3 submissions on 2025-08-12
1 submissions on 2025-08-13
1 submissions on 2025-08-14
1 submissions on 2025-08-15
1 submissions on 2025-08-16
1 submissions on 2025-08-17
1 submissions on 2025-08-18
1 submissions on 2025-08-19
2 submissions on 2025-08-20
4 submissions on 2025-08-21
1 submissions on 2025-08-22
1 submissions on 2025-08-23
1 submissions on 2025-08-24
1 submissions on 2025-08-25
1 submissions on 2025-08-26
1 submissions on 2025-08-27
1 submissions on 2025-08-28
1 submissions on 2025-08-29
1 submissions on 2025-08-30
1 submissions on 2025-08-31
1 submissions on 2025-09-01
1 submissions on 2025-09-02
1 submissions on 2025-09-03
1 submissions on 2025-09-04
1 submissions on 2025-09-05
1 submissions on 2025-09-06
Aug
1 submissions on 2025-09-07
1 submissions on 2025-09-08
1 submissions on 2025-09-09
1 submissions on 2025-09-10
1 submissions on 2025-09-11
1 submissions on 2025-09-12
1 submissions on 2025-09-13
1 submissions on 2025-09-14
1 submissions on 2025-09-15
1 submissions on 2025-09-16
1 submissions on 2025-09-17
1 submissions on 2025-09-18
1 submissions on 2025-09-19
1 submissions on 2025-09-20
1 submissions on 2025-09-21
1 submissions on 2025-09-22
1 submissions on 2025-09-23
1 submissions on 2025-09-24
1 submissions on 2025-09-25
1 submissions on 2025-09-26
1 submissions on 2025-09-27
1 submissions on 2025-09-28
1 submissions on 2025-09-29
1 submissions on 2025-09-30
1 submissions on 2025-10-01
1 submissions on 2025-10-02
1 submissions on 2025-10-03
1 submissions on 2025-10-04
Sep
1 submissions on 2025-10-05
1 submissions on 2025-10-06
4 submissions on 2025-10-07
1 submissions on 2025-10-08
2 submissions on 2025-10-09
1 submissions on 2025-10-10
2 submissions on 2025-10-11
1 submissions on 2025-10-12
1 submissions on 2025-10-13
1 submissions on 2025-10-14
1 submissions on 2025-10-15
1 submissions on 2025-10-16
2 submissions on 2025-10-17
1 submissions on 2025-10-18
2 submissions on 2025-10-19
1 submissions on 2025-10-20
1 submissions on 2025-10-21
1 submissions on 2025-10-22
1 submissions on 2025-10-23
2 submissions on 2025-10-24
1 submissions on 2025-10-25
1 submissions on 2025-10-26
1 submissions on 2025-10-27
1 submissions on 2025-10-28
1 submissions on 2025-10-29
1 submissions on 2025-10-30
2 submissions on 2025-10-31
1 submissions on 2025-11-01
Oct
2 submissions on 2025-11-02
1 submissions on 2025-11-03
1 submissions on 2025-11-04
1 submissions on 2025-11-05
1 submissions on 2025-11-06
1 submissions on 2025-11-07
1 submissions on 2025-11-08
1 submissions on 2025-11-09
1 submissions on 2025-11-10
2 submissions on 2025-11-11
1 submissions on 2025-11-12
1 submissions on 2025-11-13
2 submissions on 2025-11-14
1 submissions on 2025-11-15
1 submissions on 2025-11-16
2 submissions on 2025-11-17
2 submissions on 2025-11-18
2 submissions on 2025-11-19
2 submissions on 2025-11-20
2 submissions on 2025-11-21
2 submissions on 2025-11-22
2 submissions on 2025-11-23
1 submissions on 2025-11-24
3 submissions on 2025-11-25
1 submissions on 2025-11-26
2 submissions on 2025-11-27
2 submissions on 2025-11-28
1 submissions on 2025-11-29
3 submissions on 2025-11-30
1 submissions on 2025-12-01
3 submissions on 2025-12-02
2 submissions on 2025-12-03
1 submissions on 2025-12-04
2 submissions on 2025-12-05
1 submissions on 2025-12-06
Nov
2 submissions on 2025-12-07
1 submissions on 2025-12-08
2 submissions on 2025-12-09
1 submissions on 2025-12-10
1 submissions on 2025-12-11
1 submissions on 2025-12-12
2 submissions on 2025-12-13
2 submissions on 2025-12-14
1 submissions on 2025-12-15
1 submissions on 2025-12-16
1 submissions on 2025-12-17
1 submissions on 2025-12-18
1 submissions on 2025-12-19
1 submissions on 2025-12-20
1 submissions on 2025-12-21
1 submissions on 2025-12-22
2 submissions on 2025-12-23
1 submissions on 2025-12-24
3 submissions on 2025-12-25
6 submissions on 2025-12-26
4 submissions on 2025-12-27
3 submissions on 2025-12-28
1 submissions on 2025-12-29
1 submissions on 2025-12-30
1 submissions on 2025-12-31
2 submissions on 2026-01-01
1 submissions on 2026-01-02
1 submissions on 2026-01-03
Dec
1 submissions on 2026-01-04
1 submissions on 2026-01-05
2 submissions on 2026-01-06
1 submissions on 2026-01-07
1 submissions on 2026-01-08
4 submissions on 2026-01-09
15 submissions on 2026-01-10
5 submissions on 2026-01-11
3 submissions on 2026-01-12
1 submissions on 2026-01-13
3 submissions on 2026-01-14
1 submissions on 2026-01-15
1 submissions on 2026-01-16
1 submissions on 2026-01-17
1 submissions on 2026-01-18
3 submissions on 2026-01-19
1 submissions on 2026-01-20
1 submissions on 2026-01-21
1 submissions on 2026-01-22
2 submissions on 2026-01-23
1 submissions on 2026-01-24
5 submissions on 2026-01-25
2 submissions on 2026-01-26
1 submissions on 2026-01-27
1 submissions on 2026-01-28
1 submissions on 2026-01-29
1 submissions on 2026-01-30
2 submissions on 2026-01-31
Jan
2 submissions on 2026-02-01
1 submissions on 2026-02-02
1 submissions on 2026-02-03
1 submissions on 2026-02-04
2 submissions on 2026-02-05
1 submissions on 2026-02-06
6 submissions on 2026-02-07
6 submissions on 2026-02-08
5 submissions on 2026-02-09
5 submissions on 2026-02-10
2 submissions on 2026-02-11
1 submissions on 2026-02-12
1 submissions on 2026-02-13
2 submissions on 2026-02-14
1 submissions on 2026-02-15
1 submissions on 2026-02-16
1 submissions on 2026-02-17
1 submissions on 2026-02-18
1 submissions on 2026-02-19
2 submissions on 2026-02-20
6 submissions on 2026-02-21
8 submissions on 2026-02-22
9 submissions on 2026-02-23
1 submissions on 2026-02-24
6 submissions on 2026-02-25
2 submissions on 2026-02-26
7 submissions on 2026-02-27
12 submissions on 2026-02-28
Feb
6 submissions on 2026-03-01
3 submissions on 2026-03-02
2 submissions on 2026-03-03
7 submissions on 2026-03-04
1 submissions on 2026-03-05
1 submissions on 2026-03-06
2 submissions on 2026-03-07
5 submissions on 2026-03-08
2 submissions on 2026-03-09
2 submissions on 2026-03-10
3 submissions on 2026-03-11
7 submissions on 2026-03-12
2 submissions on 2026-03-13
1 submissions on 2026-03-14
1 submissions on 2026-03-15
1 submissions on 2026-03-16
1 submissions on 2026-03-17
1 submissions on 2026-03-18
1 submissions on 2026-03-19
1 submissions on 2026-03-20
1 submissions on 2026-03-21
1 submissions on 2026-03-22
1 submissions on 2026-03-23
2 submissions on 2026-03-24
1 submissions on 2026-03-25
2 submissions on 2026-03-26
2 submissions on 2026-03-27
1 submissions on 2026-03-28
1 submissions on 2026-03-29
2 submissions on 2026-03-30
1 submissions on 2026-03-31
1 submissions on 2026-04-01
1 submissions on 2026-04-02
1 submissions on 2026-04-03
1 submissions on 2026-04-04
Mar
1 submissions on 2026-04-05
2 submissions on 2026-04-06
2 submissions on 2026-04-07
1 submissions on 2026-04-08
1 submissions on 2026-04-09
1 submissions on 2026-04-10
1 submissions on 2026-04-11
1 submissions on 2026-04-12
0 submissions on 2026-04-13
Apr
Less
More
Project Showcase

Innovative Projects

Pathram - Blockchain-based Document Management and Tracking System

Pathram - Blockchain-based Document Management and Tracking System

Developed an innovative web-based platform for tracking the status of documents submitted for approval within government departments, focusing on enhancing transparency, security, and efficiency in document workflows.

KEY FEATURES

  • ▹Blockchain for Security: Immutable ledger ensures no unauthorized changes.
  • ▹Digital Signatures: For enhanced document authenticity.
  • ▹Transparency: End-to-end tracking of document approval stages.
  • ▹Trust & Tamper-Proofing: Using IPFS for decentralized storage ensures data integrity.
BlockchainNextJsIPFSTatumFirebase
Department Faculty Management System

Department Faculty Management System

Developed a web-client application, deployed via Vercel, that enables departments to manage and showcase faculty information effectively. Allows users to view faculty profiles and supports authenticated faculty members in managing their own details.

KEY FEATURES

  • ▹Faculty Management: Includes functionalities like Create, View, Update, and Delete for faculty profiles.
  • ▹Authentication: Secure faculty login for managing personal data.
  • ▹APIs: Ensure efficient communication and data handling while maintaining security and performance.
NextJsMongoDBSematic UIRest APICRUD
E-Connect

E-Connect

This chatroom application allows multiple users to exchange messages over Bluetooth or a local Wi-Fi network using WebSocket technology for real-time communication.

KEY FEATURES

  • ▹Real-time messaging using WebSockets for instant communication.
  • ▹Bluetooth and local Wi-Fi connectivity for seamless chat experiences.
  • ▹Clean, responsive UI built with Tailwind CSS for enhanced usability.
  • ▹Modular and scalable architecture using Turbo monorepo for optimized development.
WebSocketNextJsTurboTailwind CSS
Academic Journey

My Education

Bachelor of Technology in Computer Science Engineering

Rajiv Gandhi University of Knowledge Technologies, Basar
2019 - 2023

During my B.Tech, I gained a solid foundation in computer science, honing my problem-solving skills through hands-on projects. This experience fueled my passion for software development and taught me the importance of continuous learning in a rapidly evolving tech landscape.

Relevant Coursework

Data Structures & AlgorithmsObject Oriented ProgrammingDatabase Management SystemBlockchain TechnologyComputer NetworksOperating SystemQuantum Computing

Pre University Course - MPC

Rajiv Gandhi University of Knowledge Technologies, Basar
2017 - 2019

My Pre-University Course provided a strong foundation, igniting my passion for technology in engineering.

High School - CBSE

Jawahar Navodaya Vidyalaya, Warangal
2012 - 2017

My schooling following the CBSE curriculum fostered a strong academic foundation and encouraged my holistic development through various extracurricular activities.

Research & Papers

My Publications

A Strategy to Improvise Coin-age Selection in the Proof of Stake Consensus Algorithm

Authors

Hafeez MohamadHarshavardhan Netha GurramAbhinav SriramAnjaneyulu Endurthi

A Strategy to Improvise Coin-age Selection in the Proof of Stake Consensus Algorithm

Publisher: IEEE

Date: 10 October 2023

Conference: 2023 International Conference on Software, Telecommunications and Computer Networks (SoftCOM)

DOI: 10.23919/SoftCOM58365.2023.10271652

Abstract

Proof of stake is one of the consensus protocols in Blockchain technology. Within PoS, there are two common strategies employed for validator selection: Coin-age selection and Randomized block selection. However, both of these strategies have drawbacks when it comes to ensuring a fair selection of validators, leading to a phenomenon known as the 'rich getting richer' syndrome. The paper proposes a new consensus algorithm that introduces a novel parameter: The time stamp of staking tokens. Staking tokens are those minted by validators to participate in the staking process. By considering the timestamp of staking tokens minted before participating in the staking procedure, the proposed algorithm aims to address the shortcomings of the existing strategies. The algorithm seeks to eliminate the loopholes in the coin-age selection method and enhances it in terms of precision. Additionally, it aims to increase the randomness in choosing a validator, thereby mitigating the rich-getting-richer syndrome.

Credentials

My Certifications

AWS Certified AI Practitioner

AWS Certified AI Practitioner

AWS
Amazon Web Services (AWS)November 9, 2025

An AWS Certified AI Practitioner can design and implement foundational AI solutions using core AWS ML services and best practices.

Artificial Intelligence (AI)Generative AILLMRAGMachine Learning (ML)AWS BedrockAWS SageMaker
Stripe Certified Professional Developer

Stripe Certified Professional Developer

Stripe
StripeFebruary 28, 2025

A Stripe Certified Professional Developer can integrate eCommerce payment solutions using Stripe APIs and built in surfaces.

Payments, Payouts and WebhooksPayment IntentsReducing Fraud and Using RadarSetup Intents
Stripe Certified Billing Developer

Stripe Certified Billing Developer

Stripe
StripeApril 16, 2025

A Stripe Certified Billing Developer can integrate recurring revenue solutions using Stripe APIs.

Subscription ModelsCustomer Billing PortalsMetered Billing SetupsWebhooks Integrations
Stripe Certified Associate Developer

Stripe Certified Associate Developer

Stripe
StripeFebruary 24, 2025

A Stripe Certified Associate Developer can develop payment integrations using low-code and no-code solutions from Stripe.

Payment IntentsSetup IntentsStripe Link
Reach Out

Let's Connect

Get in Touch

I'm always open to discussing new opportunities, creative ideas, or opportunities to be part of your visions. Feel free to reach out using the form, or via direct email.

Email

haffeecareer@gmail.com

Location

Bengaluru, India

Hyderabad, India

Social Profiles

LinkedInGoogleGitHubLeetcodeX

Haffee.

Driven by a passion to decipher the world built on 0's and 1's, I thrive on creating impactful solutions through technology, crafting products that inspire change and innovation.

LinkedIn Google GitHub Leetcode X

© 2026 Hafeez Mohamad. All rights reserved.