Work Experience

Building and shipping cross-platform mobile and web products for the group's global education brands, including AHZ Associates.

Key Responsibilities:

• Built and shipped the AHZ Associates mobile app end to end (React Native, Expo, Supabase, HubSpot), live on Google Play with 10K+ downloads and a 4.0★ rating
• Develop AHZ's web platform (~80K pages, ~300K monthly unique visitors); lead developer of the next-generation site built on Next.js SSR and Wagtail CMS for 17+ country editions
• Built the complete frontend of the workflow-automation module of the group's in-house CRM: a node-based visual automation builder (n8n/Zapier-style), now in production
• Shipped localized marketing sites for group companies with Next.js, next-intl, and Django CMS backends
• Own CI/CD and infrastructure across products: GitHub Actions, Docker, Nginx, AWS EC2/S3; twice found and removed malware on production servers
• Manage mobile release operations across Google Play Console and App Store Connect

Worked With:

Bootstrapped buy-now-pay-later e-commerce platform serving UK customers: £21K+ revenue in the first five months with zero marketing spend.

Key Responsibilities:

• Built and operate the entire technical stack solo: storefront, checkout, order management, and payments flows
• Integrated KYC identity verification (Didit) for customer onboarding
• Run production on a VPS with Docker, Cloudflare Workers, R2, cron jobs, and edge caching
• Sole engineer in a two-person venture; co-founder handles UK operations and customers

Worked With:

Maintaining and contributing to the translation of the official React.js documentation maintained by the core React team.

Key Responsibilities:

• Actively contributing to the translation of the official React.js documentation
• Collaborating with the React core team and international contributors
• Keep translations technically accurate for Bengali-speaking developers

Developed native mobile and web applications, managed infrastructure, and mentored team members.

Key Responsibilities:

• Built SimFree (simfree.io) end to end: Next.js web platform and companion React Native mobile app
• Developed an internal CRM with integrated VoIP softphone and SMTP email automation
• Designed and managed relational database schemas
• Configured Firebase and Google Cloud Platform with a focus on security
• Implemented and maintained CI/CD pipelines; managed private servers
• Mentored 4 developers on best practices, code quality, and version control; delivered all milestones ahead of deadline

Worked With:

Led the frontend of OpExpert, a unified IT-operations platform. Delivered the fixed-scope contract on schedule with 100+ active users at handoff.

Key Responsibilities:

• Led a frontend team of 3 developers building OpExpert: projects, scheduling, and calendar management with drag-and-drop dashboards
• Migrated the legacy JavaScript/vanilla React.js codebase to TypeScript and Next.js
• Mentored team members through TypeScript adoption
• Implemented real-time dashboards and charts using MUI and Redux

Worked With:

Rescued a delayed project and took it from ~20% to ~90% completion in four months, before the company shut down.

Key Responsibilities:

• Took over a stalled platform (~20% complete after 5 months) and drove it to ~90% completion in 4 months
• Shipped 34 production pages in Next.js and authored 619 commits
• Merged 59 pull requests into production; integrated 75% of the backend REST API surface
• Implemented secure authentication with NextAuth
• Delivered near pixel-perfect UI implementation aligned with the design team

Worked With:

First professional client work: social media and e-commerce platform frontends, delivered as part of a small freelance team.

Key Responsibilities:

• Delivered a social-media-style platform with validated flows across 60+ form fields and clear error handling
• Co-developed an interactive e-commerce site with Next.js and TypeScript in just 21 days

Worked With: