Ahtasham Abbas, Developer in Lahore, Punjab, Pakistan
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Ahtasham Abbas

Verified Expert  in Engineering

Full-stack Software Developer

Lahore, Punjab, Pakistan

Toptal member since May 10, 2022

Bio

Ahtasham is a result-oriented, quality-driven, full-stack software engineer who excels with large‐scale enterprise‐level applications. He has delivered solutions for the fintech, blockchain, eCommerce, and custom CRM domains and is proficient in all stages of application development. The bulk of Ahtasham's experience has been with startups. He designed and developed the architecture of multi-tenant SaaS applications for startups using AWS cloud and Web3. Ahtasham has also led teams and projects.

Portfolio

NorthBay Solutions (an AWS Premier Partner)
React, Redux, D3.js, JavaScript, Node.js, Express.js, CI/CD Pipelines...
ArgonTech
Node.js, React, PostgreSQL, MongoDB, Elasticsearch, Payment Gateways...
DigitalSoft
JavaScript, ECMAScript (ES6), jQuery, Bootstrap, PHP, CodeIgniter, CSS, HTML...

Experience

  • JavaScript - 7 years
  • React - 7 years
  • Full-stack - 7 years
  • Node.js - 5 years
  • Next.js - 5 years
  • Serverless - 3 years
  • NestJS - 3 years
  • Generative Artificial Intelligence (GenAI) - 2 years

Availability

Full-time

Preferred Environment

JavaScript, React, Node.js, TypeScript, Amazon Web Services (AWS), Serverless Architecture, Next.js, OpenAI, Web Applications, Django, REST APIs, API Integration

The most amazing...

...thing I've developed is a multi-tenant SaaS product admired for its robust and scalable architecture by the AWS team.

Work Experience

Full-stack Principal Software Engineer

2019 - PRESENT
NorthBay Solutions (an AWS Premier Partner)
  • Led the revamping architecture activity, set up the monorepo structure, and migrated existing code into the new architecture.
  • Gathered requirements, performed architectural analysis, and implemented reusable components while integrating Storybook with the monorepo for seamless collaboration.
  • Collaborated with the USA-Argentina‑Pakistan cross‑functional agile team to develop 18 products built upon a single-page application (SPA).
  • Created a RAG UI that supports real-time updates and includes mechanisms to keep browser memory consumption within optimal limits.
  • Designed a connectivity architecture that minimizes latency and improves the performance of user interactions.
  • Migrated the application from React 16.9 to React 18 and resolved compatibility issues, reducing the application rendering by 32% and boosting performance.
  • Migrated test cases from Enzyme to React Testing Library and increased test coverage from 58% to 73% by expanding the test suite.
  • Increased productivity by 40% by improving existing features and performance and devising new operational processes.
  • Played a motivational role as a team lead by removing obstacles that affected delivery to move the team into a fast-paced environment.
  • Conducted performance A/B testing to identify and resolve issues, optimizing code and reducing unnecessary API calls to enhance user flow efficiency.
Technologies: React, Redux, D3.js, JavaScript, Node.js, Express.js, CI/CD Pipelines, Test-driven Development (TDD), Web Architecture, ECMAScript (ES6), TypeScript, RESTful Development, Functional Programming, Asynchronous Programming, Serverless Framework, Docker, Miro, Figma, MySQL, Amazon EC2, Next.js, Amazon Web Services (AWS), NestJS, Tailwind CSS, Git, OpenAI, Databases, Full-stack, Web Development, Amazon Route 53, CORS, Finance, Generative Artificial Intelligence (GenAI), Architecture, ChatGPT, Webhooks, Storybook, Beautiful Soup, Selenium, Vite, Vercel, REST APIs, API Integration, Redis, AWS Lambda, Data Visualization, Mongoose

Software Engineer

2018 - 2019
ArgonTech
  • Assisted in building some of the company's crucial projects that deliver next-gen technology services to global customers.
  • Collaborated with several teams during my tenure, where I helped develop, launch, and grow the project to support thousands of users.
  • Served as an individual contributor on projects and helped build some core modules, including authentication, payment gateways, CI/CD, infrastructure monitoring, SDKs, reporting APIs, CRM, geocoding, and a CLI-based EFK stack.
  • Designed and developed the architecture of the massively multiplayer AAA game (MMOG) with low communication latency for a fast gaming experience.
  • Increased customer satisfaction from 75% to 90% by regularly reviewing customer feedback to suggest new customer service processes.
  • Managed the team and helped them with planning and architecture design.
  • Led the team and liaised with all departments, stakeholders, and customers to ensure no communication gaps in the requirements and delivery of features.
Technologies: Node.js, React, PostgreSQL, MongoDB, Elasticsearch, Payment Gateways, CI/CD Pipelines, Django, Python, ECMAScript (ES6), RESTful Development, Google Maps API, Microservices, Docker, WebSockets, Amazon EC2, Next.js, Amazon Web Services (AWS), Material UI, Git, Databases, Full-stack, JavaScript, Web Development, CORS, Finance, Architecture, Webhooks, Beautiful Soup, Selenium, Vite, Vercel, HIPAA Compliance, REST APIs, API Integration, Google Sheets API, Redis, Figma, AWS Lambda, MySQL, Data Visualization, Mongoose

Full-stack Developer

2017 - 2018
DigitalSoft
  • Contributed to the core project called ”digital manager” and built the multi-company solution, including accounts and inventory.
  • Guided my team, streamlined requirements, and updated the manager about the project.
  • Analyzed and modified the system, including testing and debugging.
Technologies: JavaScript, ECMAScript (ES6), jQuery, Bootstrap, PHP, CodeIgniter, CSS, HTML, SCSS, RESTful Development, MySQL, Git, Node.js, Databases, Full-stack, Web Development, React, CORS, Finance, Architecture, Webhooks, Beautiful Soup, Selenium, REST APIs, API Integration, Data Visualization

Software Engineer

2016 - 2016
RTM Ltd
  • Delivered solutions in the business management and ERP domains.
  • Built a custom business management solution with modules including accounts, quotations, inventory, an access control list, and task tracking.
  • Improved the internal reporting by contributing to the team management portal.
Technologies: JavaScript, jQuery, PHP, CodeIgniter, Bootstrap, CSS, HTML, SCSS, RESTful Development, SQL, Git, Node.js, Databases, Full-stack, Web Development, CORS, Finance, Architecture, Webhooks, Selenium, REST APIs, API Integration, MySQL

Ask Cyborg

https://askcyborg.com/
I designed an AI-powered report generator that compiles insights on millions of companies, saving the business over 500 hours annually in manual reporting efforts and enabling faster strategic pivots.

• Built a comprehensive data processing pipeline, covering ETL and incorporating retrieval augmented generation (RAG) functionality.
• Utilized Express, Next.js, and MongoDB for vector similarity search.
• Led architectural design, set coding standards, and reduced critical bugs by 30%, enhancing system reliability for 500,000+ users.
• Designed and implemented a dynamic code generation system using ChatGPT, integrated with a bespoke mini-compiler for efficient execution.
• Built a PDF financial report generation module with Puppeteer, incorporating custom styling and dynamic data rendering.
• Integrated Redis for async operations to reduce server load and automated the process to generate and send reports via email.
• Implemented Stripe payment for secure transactions, enhancing user experience and revenue.
• Established a CI/CD pipeline on AWS Elastic Beanstalk and GitHub workflows for front-end deployment and integrated logging and monitoring using PM2 to address system issues.

Intelligize

https://www.intelligize.com/products/intelligize/
A leading provider of web-based tools that help law and accounting firms, corporations, and other companies more efficiently research, prepare, and draft SEC filings, corporate transactions, and various agreements within a fast-changing regulatory environment. This application was made to efficiently incorporate a data set of over ten million.

• Innovated an internal tool to improve the QC and reduce the manual effort up to 68%.
• Fostered configurable drag and drop graphical and tabular widgets on the home screen.
• Optimized the document view performance by 45% by fixing memory leakage that previously extended user time and affected user experience.
• Revamped the custom context menu.
• Integrated the new tab for the risk factor (RF) matrix by implementing orchestration.
• Worked on a complex RF matrix grid with over six types of cells while maintaining performance.
• Maintained the performance factor while working on restoring the RF matrix saved tabs.
• Designed the architecture and implemented the dynamic filter panel according to the consumer application using dependency injection, improving performance by 60%.
• Contributed to print, download, email, and Excel sales automation.

Simplytokenized

https://simplytokenized.com/
Developed a multi-tenant SaaS platform that offers complete solutions for financing and implementing ideas using the client's ecosystems. The token is the tool to connect companies dynamically with communities.

• Set up the Domain Driven Development, Test Driven Development, and atomic design patterns
• Authenticated and authorized the user with AWS Amplify
• Developed the re-useable components for custom theme
• Integrated permissions to perform certain operations assigned to specific roles
• Generated dynamic forms per tenant for compliance and contract processes
• Implemented the complete KYC process
• Integrated the multiple themes per tenant
• Increased engagement up to 55% by localizing the application in German and English.
• Wrote, maintained, and verified test cases
• Configured the CI/CD with AWS Amplify

Data Lake Accelerator

Built an in-house tool for accelerating the infrastructure deployment for a new data lake to be onboarded for cataloging and ETL purposes.

• Established the project's baseline and integrated the domain-driven architecture for the project's scalability.
• Increased customer satisfaction by 39% by combining the application's components with an atomic design pattern.
• Transpiled the Figma design into reusable components.
• Shipped the alpha release in the record time of 1.5 months and assisted with a request for six back-end resources.
• Improved the application rendering speed by virtualizing the large UI dataset.
• Deployed the monolithic application embedded inside a Django project on Elastic Beanstalk.
• Worked on the AWS API gateway (Infrastructure as a Code) to expose the back-end endpoint.

Medicore

https://apps.apple.com/th/app/medicore-find-best-doctors/id1583460732
• Led the full-stack development of a HIPAA-compliant medical application (Medicore), ensuring secure patient data handling with custom encryption methods and AWS Key Management Service (KMS).

• Designed and architected the entire back end using Django and PostgreSQL, integrating secure APIs for smooth and encrypted communication between server and client.

• Engineered secure booking and scheduling features for doctor appointments, pharmacies, and hospital visits, ensuring that user data, including health records and personal information, was encrypted and fully compliant with HIPAA regulations using custom encryption methods and AWS KMS.

• Developed an admin panel in React with strict Access Control Layers (ACL) to ensure role-based access to sensitive data, enhancing the platform’s security.

• Implemented end-to-end encryption protocols to protect data during transmission and at rest, adhering to HIPAA guidelines, and utilized AWS services like IAM and S3 for secure infrastructure management.

• Provided key technical guidance on compliance and security best practices, contributing to the overall success and scalability of the application.
2014 - 2018

Bachelor's Degree in Software Engineering

Government College University, Faisalabad - Faisalabad, Pakistan

AUGUST 2023 - PRESENT

AWS Partner: Generative AI Essentials (Business)

Amazon Web Services (AWS)

JULY 2020 - PRESENT

AWS Technical Professional

Amazon Web Services

MAY 2020 - PRESENT

AWS Cloud Practitioner Essentials (Second Edition)

Amazon Web Services

Libraries/APIs

React, Node.js, Redux-Saga, REST APIs, D3.js, Immutable.js, AWS Amplify, Google Maps API, Beautiful Soup, Google Sheets API, React DnD, PayPal API, Stripe API, jQuery, Web3.js, Socket.IO

Tools

Git, AWS AppSync, Figma, ChatGPT, Celery, Mongoose, Amazon Cognito, AWS IAM, Miro, Redux Toolkit, AWS Key Management Service (KMS)

Languages

JavaScript, ECMAScript (ES6), Python, TypeScript, CSS, HTML, SCSS, GraphQL, SQL, PHP, HTML5, CSS3

Frameworks

Redux, Bootstrap, Ant Design, Next.js, Express.js, Serverless Framework, NestJS, Tailwind CSS, Selenium, Django, CodeIgniter, Material UI, Bedrock

Paradigms

Web Architecture, RESTful Development, Test-driven Development (TDD), Functional Programming, Asynchronous Programming, Microservices, Dependency Injection, HIPAA Compliance, Agile Project Management, Serverless Architecture, Service-oriented Architecture (SOA)

Platforms

Vercel, AWS Lambda, Amazon EC2, Heroku, Amazon Web Services (AWS), AWS Elastic Beanstalk, Docker

Storage

MongoDB, Databases, MySQL, Redis, PostgreSQL, Elasticsearch, Amazon S3 (AWS S3), Amazon DynamoDB

Other

OpenAI, Full-stack, Web Development, CORS, Vite, API Integration, Software as a Service (SaaS), API Gateways, Payment Gateways, CI/CD Pipelines, Serverless, SaaS, Stripe Payments, PayPal, WebSockets, Generative Artificial Intelligence (GenAI), Amazon Route 53, Finance, Architecture, Webhooks, Storybook, Artificial Intelligence (AI), Data Visualization, Critical Thinking, Axios, GitHub Actions, Large Language Models (LLMs), Embeddings from Language Models (ELMo), Retrieval-augmented Generation (RAG), Web App Development, Web Applications, Server Sent Events (SSE)

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