
Ali Aizaz
Verified Expert in Engineering
TypeScript Developer
Karachi, Sindh, Pakistan
Toptal member since July 3, 2024
Ali is a senior full-stack software engineer with 7+ years of experience building scalable SaaS, AI-powered, and Web3 applications. His expertise spans modern web architecture, real-time collaboration systems, AI integrations, and cloud infrastructure. Proficient in React, Next.js, Node.js, TypeScript, and NestJS, Ali has a proven track record of delivering complex products from concept to production, helping startups and enterprises build reliable, high-performance software.
Portfolio
Experience
- TypeScript - 7 years
- React - 7 years
- Next.js - 6 years
- PostgreSQL - 5 years
- Node.js - 5 years
- Tailwind CSS - 5 years
- HTML5 - 5 years
- Express.js - 4 years
Preferred Environment
GitHub, Node.js, Next.js, React, TypeScript, PostgreSQL, Cursor AI, MacOS, Claude, Codex
The most amazing...
...achievement was helping build Cognet, a scalable AI workspace that combines real-time collaboration, graph-based data modeling, and AI-powered workflows.
Work Experience
Senior Full-stack Developer | Data Engineer
The Undivide Project
- Architected a full-stack financial-transparency analytics platform from scratch using Next.js, React, TypeScript, and Supabase/Postgres, integrating two independent public-record datasets into a single dashboard product.
- Developed an end-to-end Python/Pandas pipeline to ingest quarterly Financial Statement and Notes bulk datasets, with automatic ZIP download, caching, and fallback discovery across local archives and extracted folders.
- Built an ingestion engine that joins financial-statement CSV rows to company submissions and company-facts APIs, selectively downloads filing documents, and emits per-company manifests plus a run-level audit manifest for full pipeline traceability.
- Delivered end-to-end interactive dashboards with Carbon Charts, React Query–driven filters, a live organization search with debouncing, multi-entity comparison views, and a chart-details modal that drives views off the same live dataset as the chart.
- Developed a shared, structured logging module used across all scrapers, injecting contextual metadata (AWS request ID, job ID, service/environment, record counts, durations) into every log line for CloudWatch-native observability and easier debugging.
- Designed a configurable XBRL tag-mapping framework that rolled up 35+ raw US-GAAP tags into 5 business-level financial metrics, enabling cross-company ESG-style financial analysis.
- Maintained test coverage across the stack with testing libraries and unit tests for components, data transforms, and caching logic, and Playwright E2E specs covering critical flows like organization profile pages and dashboard data-readiness states.
- Created an idempotent, failure-safe state-tracking system that reconciles a state file against live S3 scan and falls back to the more conservative date, ensuring no data loss or silent reprocessing gaps if files are manually deleted or become stale.
- Integrated the US Census Bureau's batch geocoding API (multipart form upload, built with only the Python standard library) to resolve business addresses to latitude/longitude, enabling geospatial analysis of the company's environmental footprint.
Senior Full-stack Engineer | AI Engineer
Cognet
- Architected a custom WebSocket-based real-time sync engine supporting collaborative editing, with transaction management, conflict resolution, subscription tracking, automatic reconnection, heartbeat keep-alive, and a retry queue.
- Enabled agentic tool use with a sandboxed bash execution tool and read/write file tools, allowing models to validate and iterate on generated output within isolated steps.
- Implemented a multi-panel docking workspace with Dockview for draggable, splittable, resizable panels for an IDE-like layout.
- Built a unified AI suggestion engine that lets AI propose changes to any part of the app text, tables, code, kanban boards, calendars, and shows each one as an accept-or-reject prompt so the user always stays in control.
- Architected and shipped a serverless multi-provider AI gateway on Cloudflare Workers that unifies OpenAI, Anthropic, Google Gemini, Groq, OpenRouter, and Replicate behind a single authenticated API, with environment-isolated deployments via Wrangler.
- Designed a recursive node-rendering engine that traverses a hierarchical graph data model and dynamically resolves each node to its plugin component via a registry, enabling arbitrarily nested, self-composing UI from a single tree structure.
- Implemented semantic node-type resolution that maps graph entities like pages, objects/classes, cron, channel, treeSlot to the correct renderer at runtime, with per-node ErrorBoundary isolation so a single malformed node never crashes the tree.
- Wired schema edits through the synced tree and transaction pipeline, so structural changes to an object's schema propagate to the graph database and to all connected clients in real time.
- Built a structured, streamed request/response logging system that captures and timestamps SSE chunks for offline debugging, gated to development environments.
Senior Back-end Developer
Pumpify
- Built a full-stack Solana blockchain back end using TypeScript, Express.js, Raydium SDK, and Metaplex libraries to enable token creation, liquidity pool management, and DEX operations.
- Integrated Turnkey wallet-as-a-service with OTP authentication for seamless onboarding, automating sub-org creation, and non-custodial wallet generation for each user.
- Developed SPL token minting with Metaplex metadata standards, Arweave storage via Irys, authority revocation, and Raydium AMM integration for liquidity pools and markets.
- Built DeFi swap functionality with Raydium SDK V2 for AMM token swaps, implementing real-time price computation, slippage protection, and optimized transaction execution.
- Created a gamified rewards system with probabilistic distribution (0.1%-100% tiers), eligibility tracking, USDC distribution from the warchest, and comprehensive audit logging.
- Built high-performance REST APIs with async FastAPI endpoints, improving request handling and reducing back-end response times.
Front-end Developer
Bestplay Systems S.L.
- Enhanced user experience and engagement by fixing UI issues and implementing smooth animations across multiple components, resulting in a more visually appealing and intuitive interface.
- Improved mobile usability and accessibility by resolving responsiveness issues on various pages, leading to increased retention rates for mobile users.
- Enabled data-driven decision-making by recommending and integrating Hotjar, helping the team identify user behavior trends, reduce drop-off rates, and optimize critical user flows.
- Increased website stability and performance by addressing TypeScript errors and structural bugs, creating a more reliable and maintainable codebase.
- Accelerated product launch timelines by collaborating effectively with the team, ensuring the product was delivered on time and accessible to end users faster.
Front-end React and Vercel Expert
Kyle Foiles
- Developed a Minter application that enabled the minting of Pulsar tokens with a built-in buy-and-burn mechanism, effectively reducing token supply to support deflationary tokenomics and ecosystem sustainability.
- Designed and implemented secure and scalable smart contracts that facilitated smooth user interactions, contributing to the utility and stability of the Pulsar token.
- Leveraged React, Vercel, and TypeScript to build a responsive, high-performance front end, ensuring seamless user experience across devices.
- Integrated AWS and FastAPI to handle back-end operations, providing robust infrastructure and API support for the minter application.
- Ensured data integrity and type safety using Python with Pydantic, maintaining a strong, type-enforced codebase across the project.
Front-end Developer
Wen Foundation
- Integrated interactive elements and animations using Web Animations API and Framer, and collaborated closely with the designer to ensure design accuracy.
- Integrated Web3.js for user authentication and eligibility verification in a Web3 community, enabling secure wallet connections and automated token balance checks to validate user access.
- Developed and implemented a new landing page design using HTML, CSS, JavaScript, and Tailwind CSS.
- Ensured a responsive UI across various devices and browsers using Next.js and Tailwind CSS.
- Utilized Supabase for back-end integration and deployed the landing page on Vercel for optimal performance.
- Integrated dynamic maps and other interactive components to enhance user engagement.
Full-stack Developer
Eden AI
- Spearheaded the design and development of a minimum viable product (MVP) and proof of concept (POC), accelerating the seamless progression of the product development stages.
- Leveraged Supabase’s real-time capabilities to enable real-time chat functionality and notifications, enhancing the user experience.
- Architected and executed a new database structure that increased data query efficiency by 40%, streamlining database deployment and migration processes.
- Integrated Web3 packages, including Web3.js, Moralis, and Ethers, and implemented logics for NFT minting, connecting user wallets to the website, and enabling trading, selling, and placing offers on users' NFTs.
- Integrated Supabase into the project, designing the database schema and implementing authentication features allowing secure user sign-up, login, and access control.
- Led the implementation of integral aspects of AMM automated financial calculations, including fee deductions and referral systems, enhancing overall financial operations' accuracy and efficiency.
- Identified and proposed the implementation of Sentry for comprehensive global error management; spearheaded the process of introducing a self-hosted Sentry server, significantly reducing system errors.
Full-stack Developer
Innox
- Developed a responsive admin dashboard from scratch, utilizing React and Framer Motion. The dashboard efficiently manages users and creators, providing insights, analytics, and controls for seamless system administration.
- Implemented OAuth 2 and OpenID Connect (OIDC) configurational tasks along with integrating Web3 authentication using Wagmi, resulting in a high-performance, fault-tolerant, and type-safe front-end experience.
- Architected and implemented critical components of an existing system, which allowed slicing it and reducing its complexity.
- Led the implementation of integral aspects of automated financial calculations, including fee deductions and referral systems, enhancing financial operations' overall accuracy and efficiency.
- Added scheduled tasks, queues, and webhooks for user subscription billing cycles and built a custom log parser to manage events.
- Assisted dApp developers with the seamless integration of the React library, such as Web3 and Ethers.js, improving the contract's versatility and efficiency.
Web Developer
Emergen
- Designed and developed an app that enables users to subscribe to authors in their field of interest, facilitating access to relevant books and articles.
- Utilized Supabase RPC functions to handle business logic in the app, ensuring reliable and predictable communication between the front end and back end.
- Developed a subscription management service using Node.js and Stripe APIs. Enabled users to create, delete, and renew subscriptions for multiple authors.
- Worked on the data visualization part, building the charts in the dashboard and allowing upper management to view and analyze statistical subscription data in an easy-to-understand way.
- Migrated the internal service application that all service centers run on to a custom in-house stack that used Node.js, Express.js, React, and Redux.
- Designed and developed UI components and services to facilitate dashboards, payment, payouts, administration, and subscriptions.
Software Engineer
BitsFrame
- Developed new charts and features and improved architecture and performance leveraging React, styled-components, and Jest. I also wrote various unit and E2E tests.
- Streamlined user interface functionalities by unifying all form actions utilizing React Hook Form and Yup validations, which led to an intuitive and error-free user experience.
- Demonstrated proficiency in modern web development by contributing to several intricate web projects, resulting in enhanced user experience and performance.
- Authored a comprehensive set of Confluence documents outlining SEO best practices, contributing to enhanced web visibility and improved site rankings.
- Showcased expertise in modern web development by contributing to several intricate web projects utilizing React/Redux, resulting in enhanced user experience and performance.
- Implemented state management solutions to simplify complex data flows and reduce boilerplate code within Svelte components.
- Utilized SvelteKit's SSR (Server-Side Rendering) capabilities to improve load times and provide a smoother user experience across devices.
- Integrated Svelte animations to create engaging and interactive interfaces, contributing to a more polished, professional user experience.
Experience
Thermite Ticketing System | Front-end Development
https://github.com/Syed-Haider-Shah/ThermitePOS Pluto | Full-stack Development
Skeleton Punks | Front-end Development
Developed and deployed robust smart contracts for ERC 7210 iTokens and significant ERC 20 tokens, utilizing complex internal logic to bolster the efficiency and reliability of blockchain transactions.
Education
Bachelor's Degree in Computer Science
DHA Suffa University - Karachi, Pakistan
Certifications
HIPAA Compliance Training Program
HIPAA Training.US
Principles of UX/UI Design
Coursera
Advanced React
Coursera
Programming with JavaScript
Coursera
DevOps on AWS: Code, Build, and Test
Coursera
HTML and CSS in Depth
Coursera
Version Control
Coursera
Skills
Libraries/APIs
React, Node.js, React Redux, Stripe, React Hook Form, Yup, Zod, Stripe API, REST APIs, Claude API, Google Maps API, API Development, Web3.js, NumPy, Pandas, Twilio API, OpenZeppelin, Wagmi, Pydantic, React Query, CoinGecko API, React Flow, TanStack Table, React Motion, Recharts, LambdaJ, Beautiful Soup
Tools
GitHub, Jira, Slack, Git, Prisma, Google Analytics, Sequelize, Bundler, NGINX, ChatGPT, NPM, Firebase Cloud Messaging (FCM), Agora, Figma, Shadcn UI, Expo, Shadcn, Amazon CloudFront, Claude Code, Claude, Codex, Sentry, Apache Airflow, Capacitor, Auth0, Webpack, MetaMask, Pytest, Firebase Analytics, Google Analytics for Firebase, Hotjar, Prettier, Multer, Mongoose, Claude Agent SDK, AI SDK, TanStack Router, Confluence, Amazon CloudWatch
Languages
TypeScript, HTML5, CSS, JavaScript, SQL, CSS3, HTML, GraphQL, Python, Snowflake, Rust, Solidity, C#, Python 3
Frameworks
Next.js, Tailwind CSS, Bootstrap, Express.js, React Native, NestJS, OAuth 2, Redux, Material UI, Cypress, Angular, Jest, Svelte, Electron, Fastify, LangGraph, Hardhat, Ruby on Rails (RoR), Anchor
Paradigms
REST, UI Design, Search Engine Optimization (SEO), UX Design, Responsive, REST API Architecture, Model Context Protocol (MCP), Scalable Application, ETL, Agile, Mobile UI Design, Testing, DevOps, Desktop App Development, Role-based Access Control (RBAC), Automation, Event-driven Design (EDD), HIPAA Compliance, Gamification, Mobile Design, B2B
Platforms
Windows, Visual Studio Code (VS Code), Vercel, Firebase, Blockchain, AWS Lambda, iOS, Twilio, Amazon EC2, Clerk, Mobile, Mapbox, MacOS, Docker, Amazon Web Services (AWS), Ethereum, Google Cloud Platform (GCP), Azure, Decentralized Exchanges (DEXs), Databricks, Heroku, PostHog
Storage
PostgreSQL, MongoDB, MySQL, Amazon S3 (AWS S3), Databases, Data Validation, Redis, Data Pipelines, Google Cloud, Graph Databases, Neo4j
Industry Expertise
Web Design
Other
Supabase, User Interface (UI), User Experience (UX), ESLint, Front-end, Back-end, Full-stack, TypeORM, SEO Tools, APIs, Communication, Styled-components, Planning, Architecture, Front-end Development, Startups, Decentralized Applications, Responsive UI, Web Animation, Chrome Extensions, Back-end Development, Web Development, Artificial Intelligence (AI), Tailwind UI, OAuth, Social Networks, Social Networks Development, Large Language Models (LLMs), Single-page Applications (SPAs), Server-side Rendering (SSR), Full-stack Development, Virtual Private Servers, FastAPI, QA Testing, API Integration, Mobile First, Optimization, Performance, Minimum Viable Product (MVP), New Products, Software as a Service (SaaS), Strategy, Leadership, UI Development, Cursor AI, WebSockets, Page Speed Optimization, Data Engineering, Dashboards, Generative Artificial Intelligence (GenAI), Smart Contracts, Integration, Payments, MVP Design, Webhooks, HeyGen, Cryptocurrency, Software Development, Scalable Architecture, Scalable Platforms, Cryptocurrency Payments, Development, Nodemailer, Amazon Redshift, Database Schema Design, Third-party Integration, Workflows, Performance Optimization, UI Animation, UI Engineering, Web Application Design, Software Architecture, Agentic Coding, API Design, AI Integration, Cloud Infrastructure, Payment APIs, Privacy, Ethers.js, Web3, Solana, SvelteKit, Security, Agentic AI, Vector Databases, Image Processing, AI Design, AI Programming, AI Tools, Amazon Bedrock, User Roles, SaaS, Real-time Data, Server Sent Events (SSE), LangChain, AI Agents, AI Chatbots, SMS, Data Quality, GitHub Actions, Decentralized Finance (DeFi), Modular, Compliance, Cloudflare, Lovable, GraphDB, OData, Live Chat, HIPAA, Data Warehousing, Games, QR Codes, App Store Acceptance Process, Reports, Calculus, Version Control, Accessibility, Prototyping, User Experience Design, Storybook, CORS, Computer Science, OpenID Connect (OIDC), ERC-721, Point of Sale, POS, OpenAI, NextAuth.js, Framer, Maps, Uniswap, PWA, Debugging, Firebase Hosting, Google BigQuery, turnkey, Metaplex, Raydium, Vercel Analytics, TLDraw, Platejs, Dockview, Tables, Resend, Scalability, Documentation, Authentication, Graphs, Blockchain Development, CI/CD Pipelines, Charts, Email, Slack App
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