Business Projects

Years of Experience

Available for opportunities

Ahmad Jafari

Software Engineer

I craft fast, scalable web applications — turning complex problems into clean, reliable products people enjoy using.

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Who I Am

About Me

Front-end Engineer with 7+ years of experience designing and building high-performance web applications. Experienced in developing scalable and maintainable codebases using TypeScript, React, and NextJS. Skilled in designing and executing unit and end-to-end tests to ensure application reliability. Leveraged AI-assisted tools to streamline development workflows and enhance code quality. Applied robust architectures and software design principles to deliver reliable, efficient, and user-focused solutions in real-world projects.

I'm currently a Full-Stack Engineer at Partnerz (Dubai), where I build an AI-powered Shopify chatbot — optimizing it to earn the "Built for Shopify" badge and helping lift net revenue retention. Earlier, at Avicenna Research, I worked on a platform serving 200+ universities and institutes worldwide, including a mental-health study with 20,000+ participants.

Beyond writing code, I'm a deliberate, everyday user of AI tools — leaning on them to sharpen my output and accelerate my workflow without ever trading away quality. I stay endlessly curious and adaptable, picking up any new tool quickly and enjoying every step of the process.

I'm also genuinely passionate about the product side of building software. Across the different teams I've worked with, I've worked to grow an inner product manager — caring about the why behind features, not just the how — and that mindset has already earned me a wealth of valuable experience.

Technologies I Work With

Tech Stack

Languages

TypeScriptJavaScriptPythonRust

Front-end

ReactNext.jsTailwind CSSSCSSMUIAnt DesignZustandTanStack QueryViteWebpack

Back-end

Node.jsNestJSExpressDjangoPostgreSQLSQLMongoDBRedisGraphQLSwaggerNginx

Testing

JestVitestStorybookReact Testing LibraryCypressPlaywright

Architecture

Micro-frontendsMonorepoSOLIDDesign PatternsClean ArchitectureTDDDDD

Tools & Others

GitDockerGitHub ActionsGitLab CISentryLinuxShopify

My Professional Journey

Experience

Full-Stack Engineer

PartnerzFull-time

Jul 2025 — Present11 mo

Dubai, UAERemote

Engineered an AI-powered Shopify chatbot widget for personalized product recommendations
Optimized Core Web Vitals from ~60% to ~90%, earning the "Built for Shopify" badge in under 2 months
Boosted NRR from 75% to ~85% through stable feature delivery and UX improvements

Senior Front-end Developer

Avicenna ResearchFull-time

May 2023 — Jul 20252 yr 2 mo

Toronto, CanadaRemote

Expanded a large research platform serving 200+ universities and institutes globally
Reduced bundle size by ~20% (1.5 MB) by replacing 20+ libraries with tested utilities
Migrated ~50% of the codebase from JavaScript to TypeScript over a year-long plan
Built a Garmin watch app for a mental health study with 20,000+ participants (Univ. of Essex)

Front-end Architect

Dorfak SystemsContract

Oct 2024 — Mar 20255 mo

Tehran, IranRemote

Designed the architecture and structure of a PWA project from scratch
Set up linters, formatters, CI/CD, pre-commit hooks to enforce quality standards
Onboarded 2 developers to full proficiency in 6 months, enabling independent contribution

Senior Front-end Developer

Dorfak SystemsFull-time

Oct 2022 — Apr 20236 mo

Tehran, IranRemote

Architected 2 financial web apps for the Iranian stock exchange and crypto markets
Boosted loading speed by ~40% (3 seconds) using IndexedDB for data caching
Reduced codebase size by ~10% via refactoring and removing legacy dead code

Front-end Developer

ZardaluFull-time

Nov 2020 — Sep 20221 yr 10 mo

Tehran, IranHybrid

Delivered 4 fully-tested enterprise web apps for European organizations
Achieved 85%+ code coverage across all projects with automated testing
Refactored an outsourced project from JS to TS, reducing critical errors by ~70%

Front-end Developing Teacher

Meybod UniversityContract

Apr 2021 — Sep 20215 mo

Yazd, IranRemote

Taught front-end development, related languages, and top technologies in 80 hours and analyzed a project-based approach and a complete roadmap to provide a challenging course
Developed 5 complex mini-projects and a feature-rich Twitter-like website with a responsive design
Guided students on essential soft skills, including task time estimation, cross-team communication and stress management in urgent tasks

Front-end Developer

QuizLabPart-time

Feb 2019 — Jul 20201 yr 5 mo

Hamedan, IranOn-site

Built lightweight, performance-critical UI components using React and pure JS
Participated in ideation and product design for application features

Things I've Built

Featured Projects

Roobah

FinTech

About the project

A full-featured asset-management platform that let portfolio managers and brokerage firms buy and sell stocks for their clients using diverse strategies and advanced trading capabilities.

Role

Owned new-feature delivery, client requirements, and resolution of reported production issues.

Highlights

Cut initial page load from ~10s to under 3s by caching data in IndexedDB
Designed & shipped 10+ new, technically challenging features
Built fully custom, complex data visualizations with D3.js
Kept the UI smooth and responsive despite a very high real-time update rate
Implemented advanced validation across stock buy/sell forms
Spent ~10–20% of each week refactoring legacy code, raising delivery speed ~30% within two months

Tech Stack

ReactTypeScriptMobX-State-TreeApollo GraphQLSCSSD3.js

Gorgi

FinTech

About the project

A financial Progressive Web App that let individual investors manage their positions on the Iranian stock market, packed with strategies and built-in tools to serve the complex needs of high-capital clients.

Role

Built the project from the ground up — owning architecture, tooling, testing, and mentoring.

Highlights

Architected the project from scratch with a structure built for long-term maintainability
Implemented several bespoke charts with zero third-party charting libraries
Crafted a responsive design that gets as close as possible to a native mobile app
Set up comprehensive ESLint, Prettier, and Stylelint configurations
Stood up the testing infrastructure and wrote tests for the most critical paths
Minimized external dependencies to ship the smallest possible bundle for fast loads
Onboarded 2 intern/junior developers and reviewed their tasks and code

Tech Stack

ReactTypeScriptMobXSCSSApexCharts

Requireganizer

DevTools

About the project

A specialized tool for software teams that let them capture and manage requirements and user scenarios, then automatically generate software test templates from those requirements and scenarios — enabling fast, test-driven development.

Role

Implemented the full UI and feature set while building a state and business-logic layer fully decoupled from the presentation layer, backed by extensive testing.

Highlights

Built the UI and feature set end to end
Wrote unit, integration, snapshot & regression tests, reaching 90% code coverage
Implemented stores and business logic fully decoupled from the presentation layer
Customized several Ant Design components for a closer match to the design
Studied the Google Drive API and built the full Google Drive integration
Implemented a text-selection commenting system, similar to Google Docs

Tech Stack

ReactTypeScriptAnt DesignMobX-State-TreeGoogle DriveTinyMCEEmotionJestReact Testing Library

Luggo

Logistics

About the project

A Dutch software startup born during COVID with a clever idea — transporting your bags, luggage, and belongings from your trip's origin to its destination and back again.

Role

Contributed to a large-scale refactor: a JavaScript-to-TypeScript migration, a state-management switch, and root-cause bug fixing across legacy code.

Highlights

Helped refactor a large codebase and migrate it from JavaScript to TypeScript
Helped switch from a noisy, complex Redux setup to MobX, simplifying the data layer
Helped fix dozens of bugs and errors at their root within legacy code
Wrote Storybook stories for components to enable isolated visual testing

Tech Stack

ReactJavaScriptTypeScriptReduxMobXMaterial UIStorybook

Lexian

LegalTech

About the project

A Swiss legal project designed for law firms and legal companies to manage their clients, cases, lawyers, and all office matters in a unified, integrated way.

Role

Owned one of the seven core modules end to end, contributed to the rest, and authored complex, mock-heavy test suites.

Highlights

Wrote diverse, high-complexity software tests with specialized mocks
Fully implemented one of the software's 7 core modules and contributed to the rest
Built an advanced Tree-view and Stepper component with diverse features and modes

Tech Stack

ReactTypeScriptEmotionMobXBabelWebpackJestReact Testing Library

Avicenna Research

Research

About the project

Avicenna was a specialized mental-health platform whose primary customers were universities, research institutes, and organizations affiliated with hospitals and the psychology field.

Role

Developed and maintained two large dashboards as a senior front-end developer, leading major rewrites and refactors of their core features.

Highlights

Developed and maintained two large, separate dashboards — one for researchers, one for participants
Rewrote the landing page from Gatsby to Next.js + Tailwind in an SEO-friendly way
Rewrote the participants dashboard with React 19 and the latest TanStack React Query
Refactored the researcher dashboard's core feature (Survey), switching it from Redux to Zustand
Built a complex ANTLR-based feature that precisely converted syntax to UI and UI back to the target syntax
Monitored Sentry weekly and resolved production issues and bugs
Handled customer tickets directly — understanding their needs and acting to resolve them

Tech Stack

ReactTypeScriptSCSSMUIReduxTanStack QueryZustandDocusaurusNext.jsTailwind CSSPlaywrightANTLRSentry

Convi

AI · SaaS

About the project

An AI-powered chatbot for Shopify stores that helped resolve customers' needs and requests as much as possible, without human intervention.

Role

Full-stack engineer who built the chat box and admin panel from scratch across three repositories, with direct product involvement.

Highlights

Built the chat box and admin panel completely from scratch and maintained them long-term
Worked across 3 repositories — backend, merchant admin panel, and the chat box (SDK) — as a full-stack engineer
Heavily optimized the admin panel and earned the "Built for Shopify" badge in under 1 month
Contributed directly to Product, shipping several practical features that increased company revenue
Leveraged AI tools (Cursor & Claude) to develop, refactor, and debug faster, improving product quality and velocity
Coordinated directly with teammates to reduce conflicts and keep quality high at speed

Tech Stack

DjangoPostgreSQLShopifyReactPreactTypeScriptSCSSTailwind CSSTanStack QueryPolaris

Academic Background

Education

Bachelor of Software Engineering

Bu-Ali Sina University

Hamedan, Iran2017 – 2021

Strictly Unprofessional Stats

Fun Facts

∞

Code OCD

200+

Unread Bookmarks

Spaghetti Code

4k+

Caffeine Shots

50+

Project Graveyard

100%

Continuous Growth

3B+

Ctrl+Z Presses

1M+

Google Searches

100+

Browser Tabs

500+

Git Conflicts

Let's Work Together

Get in Touch

Have a project in mind, want to collaborate, or just say hello? My inbox is always open.

[email protected]

GitHub

@jafari-dev

Phone

+98 930 848 5060

@jafari-dev

@AhmadJafari

Location

Tehran, Iran