SR.

ShahzaibRehman

Senior Software Engineer 
Shahzaib Rehman

Passionate about building efficient, scalable web applications and AI-powered solutions. From full-stack apps to autonomous agents — delivering impactful results.

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Available for opportunities
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Beyond the Code

My Journey

From curious beginner to senior engineer — the passion that drives innovation and shapes the future.

Growth Mindset

Every challenge is an opportunity to learn something new and push boundaries further.

Team Player

Great software is built by great teams. I thrive in collaborative environments.

Creative Problem Solver

Finding innovative solutions that surprise and delight users.

Detail Oriented

Pixel-perfect UI, clean architecture, and thoughtful code reviews.

Passionate Builder

Driven by the joy of creating software that makes a real difference in the world.

Professional Journey

Experience

Over 4 years of building scalable applications and leading teams across payment systems, AI/ML, and cloud infrastructure.

Feb 2024 - Present

Infaque

Senior Software Engineer

1.5 Years
•Integrated and configured Stripe, PayPal, and Paygood payment processors for seamless donation experiences.
•Implemented secure session creation, payment confirmation, and webhook handling for all payment providers.
•Automated parsing and processing of Interac payment notification emails for seamless donation tracking.
•Designed and executed a comprehensive outreach feature, increasing campaign engagement by 25%.
•Automated backend data processing, including parsing, validation, and duplicate management, using serverless cloud functions.
•Integrated multiple third-party APIs (Eventbrite, Xero, Mailchimp, QuickBooks, Google, Meta) for data synchronization and analytics.
•Built robust backend services for dashboard management, KPI refresh, and financial reporting using Firebase Cloud Functions and Prisma ORM.
•Enabled bulk data entry and validation for programs, donors, and HR via CSV and API integrations.
•Automated KPI collection and reporting for financial and marketing metrics.
Payment integration dashboard

Payment Integration Dashboard

Comprehensive payment processing system integrating Stripe, PayPal, and Paygood for seamless donation experiences with secure session creation and webhook handling.

API integration workflow

Multi-API Integration System

Integrated multiple third-party APIs including Eventbrite, Xero, Mailchimp, QuickBooks, Google, and Meta for comprehensive data synchronization and analytics.

Dashboard and analytics

Analytics & KPI Dashboard

Built robust backend services for dashboard management, KPI refresh, and financial reporting using Firebase Cloud Functions and Prisma ORM with automated metrics collection.

Campaign management system

Campaign Management Platform

Comprehensive outreach feature that increased campaign engagement by 25% with automated backend data processing, validation, and duplicate management using serverless cloud functions.

Donation Form

Donation Form

A donation form with a custom payment processor, where users can donate to a campaign.

Donation Form Payment Screen

Donation Form Payment Screen

A payment screen for the donation form, where users can pay for the donation.

Thank you Screen

Thank you Screen

A thank you screen for the donation form, where users can see the donation details.

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Aug 2022 - Feb 2024

Aiworks.ai

Software Engineer

1.5 Years
•Created tools for dynamic agent routing and orchestration.
•Integrated LLMs to boost productivity for stakeholders.
•Developed a Proof of Concept (PoC) to improve marketplace experience.
•Automated routine tasks to reduce manual workload.
•Implemented RAG for product data retrieval from vector databases.
•Handled prompt engineering across various applications.
•Optimized the size of docker container from 1.5Gb to 90Mb using multi stage build approach.
•Set up CI/CD pipelines using Dokku for automated deployment.
•Fine-tuned LLMs (e.g., Mistral, LLaMA 2) for specific use cases.
•Implemented workflow that triggers a new EC2 instance for various storefronts.
•Developed Sharove (E-Commerce) web application using Next.js 13.
AI agent routing system

AI Agent Routing System

Dynamic agent routing and orchestration tools with LLM integration to boost productivity for stakeholders and automated routine task management.

Sharove e-commerce platform

Sharove E-Commerce Platform

Full-stack e-commerce web application built with Next.js 13, featuring marketplace experience improvements and automated workflow systems for various storefronts.

LLM integration and fine-tuning

LLM Integration & Fine-tuning

Implemented RAG for product data retrieval from vector databases, handled prompt engineering across applications, and fine-tuned LLMs like Mistral and LLaMA 2 for specific use cases.

CI/CD and Docker optimization

DevOps & Container Optimization

Optimized Docker container size from 1.5GB to 90MB using multi-stage build approach and set up CI/CD pipelines using Dokku for automated deployment.

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Aug 2021 - July 2022

Aquila360

Software Engineer

1 Year
•Designed and configured multi-stage Azure Pipelines for automated build, test, and deployment processes.
•Implemented infrastructure as code (IaC) using ARM templates and YAML pipelines for consistent environment provisioning.
•Worked with Azure Cloud and set up CI/CD pipelines.
•Deployed apps using Docker, Kubernetes, and YAML-based configurations.
•Configured deployment slots and rolling updates for zero-downtime releases in Azure App Services.
•Deployed scheduled tasks for token refresh, notifications, and data synchronization.
•Designed and implemented a scalable dashboard architecture capable of executing and displaying 1000+ dynamic SQL queries as individual widgets across customizable dashboards.
Azure DevOps pipeline

Azure DevOps Pipeline

Multi-stage Azure Pipelines for automated build, test, and deployment processes with infrastructure as code using ARM templates and YAML pipelines for consistent environment provisioning.

Docker and Kubernetes

Multi-stage Azure Pipeline

Multi-stage Azure Pipeline for automated build, test, and deployment processes with infrastructure as code using ARM templates and YAML pipelines for consistent environment provisioning.

Infrastructure as Code

Kubernetes Deployment

Deployed applications using Docker, Kubernetes, and YAML-based configurations with deployment slots and rolling updates for zero-downtime releases in Azure App Services.

Scalable dashboard architecture

Azure ARM Template

Azure ARM Template for infrastructure as code using ARM templates and YAML pipelines for consistent environment provisioning.

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Technical Expertise

Skills & Expertise

Comprehensive expertise across full-stack development, AI/ML integration, and cloud infrastructure.

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Years Experience
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Technologies
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Projects Delivered

Frontend

React.jsNext.jsTypeScriptTailwind CSSHTML5/CSS3JavaScript ES6+

Backend

Node.jsExpress.jsFirebaseRESTful APIsGraphQLMicroservices

Database & Cloud

PostgreSQLMongoDBAWSAzureRedisPrisma ORM

AI & ML

Large Language ModelsRAG SystemsModel Fine-tuningVector DatabasesPython

DevOps

DockerKubernetesCI/CD PipelinesGit/GitHub

Leadership

Team LeadershipTechnical MentoringProject ManagementCode Review

Currently Working With

React.jsNext.jsTypeScriptNode.jsFirebasePostgreSQLMongoDBAWSDockerAI/MLTailwind CSSExpress.jsPythonKubernetesAzureRedisGraphQLPrismaReact.jsNext.jsTypeScriptNode.jsFirebasePostgreSQLMongoDBAWSDockerAI/MLTailwind CSSExpress.jsPythonKubernetesAzureRedisGraphQLPrisma
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