Hire · Full-stack software developer in New Delhi
Work with me
I build the software a business runs on: ERP and CRM systems, online stores and LLM tools, from architecture to production. I take on a few select builds alongside my role at The Sixty One (61 FZCO), where I’m an SDE 1.
Availability: Open to selected projects
New Delhi (IST, UTC+5:30)
Replies come from hello@shujaurrahman.com
What I build
The kinds of software I build, each with the case studies behind it.
ERP, CRM and internal tools
One source of truth that every document reads from, with correctness built into the data layer.
- The Material Matters ERP, built as its sole engineer: lead to cash across sales, quoting, GST invoicing, purchasing, ledger, HR and shop operations.
- 150+ API routes, and one 917-product catalogue that feeds every quote, GST invoice, vendor PO and the website.
- Optimistic locking, gapless invoice numbering by compare-and-swap, and access rules checked per page at the edge.
Case studyMaterial Matters
E-commerce and payments
Stores that launch with the tools to run them, and payments that are safe to receive twice.
- powertrack.online, SAGA’s India D2C store, on Next.js, Sanity, Clerk and Razorpay: a 21-page admin, abandoned-cart emails, barcode shipping labels, a Google Merchant feed and 40 Vitest test files.
- materialmatters.in, a headless Next.js store on a 31-route CRM API: 778 products and 1,371 media files (1.65 GB) moved off Sanity, SHA-1 verified, with zero failures.
- Razorpay on its raw REST API, with constant-time HMAC checks and idempotent webhooks, plus WooCommerce stores (Zivaana, OroSilver, Sanatan Gifts) and custom PHP stores with Razorpay and PhonePe checkout.
Case studiesPowerTrack IndiaMaterial MattersZivaana
AI assistants and automation
AI that shows its sources and keeps working when one provider fails.
- A CRM assistant for Material Matters that answers staff questions with citations to the CRM records behind them: role-filtered BM25 retrieval across 10 record types, with no vector database.
- A Gemini, GPT and DeepSeek gateway with fallbacks, so one provider’s outage doesn’t take the feature down.
- A WhatsApp assistant on the WhatsApp Cloud API and OpenAI for product updates and FAQs: 1,000+ recipients daily, a 78% open rate and 60% less manual support work.
- AMU Papers, an exam-paper platform used by 1,000+ AMU students: OCR and regex question extraction, answers drafted by Mixtral-8x7B and UPI payouts to contributors.
Case studiesMaterial MattersWhatsApp assistantAMU Papers
Websites, speed and SEO
Brand and product sites that load fast, read well to search engines and stay up when traffic spikes.
- 61saga.com on Next.js 16: 11 of its 13 routes prerendered, GSAP motion, Bunny CDN media and structured data on every page.
- eubiq.in on Next.js 15: an SEO score lifted from 63 to 95+, a 31% lower bounce rate and 22% more inquiries.
- 61gler.com in English and Russian, 481 strings per language, on React and Vite, with 180+ images and 30 videos on Bunny CDN.
- At 61 FZCO, re-engineered the infrastructure after a surge of 3K users in 20 minutes caused a failure: the redesigned architecture handles 100K+ users.
Case studiesSAGAEubiq IndiaGLER
Ways to work together
A select build
An ERP or CRM, an online store and its payments, an AI assistant or automation, or a website: scoped with you on a short call, then built end to end.
A full-time or contract role
Hiring for your team? Pick “Full-time or contract role” on the contact form and tell me about the role.
This site’s code
The Next.js 16 and Supabase build you’re browsing, admin panel included: the code to make your own, or set up and launched for you.
Partner on Arzi
Arzi, my own product, fits photos, signatures and documents to each online form’s exact upload rules, right on the device. Back the build as a partner.
Partnering is sponsorship, not an investment: it carries no equity, shares or financial return.
How I work
From the first call to launch.
Scope and priorities
A short call first: you bring the problem, the timeline and a budget range.
Design and validation
The data model, the flows and the screens, agreed with you before the build.
Implementation and QA
Tests where mistakes are expensive: powertrack.online launched with 40 Vitest test files.
Launch
The tools to run it go live with it: powertrack.online launched with its shipping labels, cart follow-ups and Merchant feed.
What I hold to: invoice numbers without gaps, payment webhooks that are safe to receive twice, edits that can’t silently overwrite each other, access rules checked on every request, and retrieval kept simple.
Track record
The numbers, the brands and the work behind them.
In numbers
- 100K+ users the redesigned architecture handles
- 150+ API routes in the Material Matters ERP
- 917 products in one catalogue, quote to invoice
- 35+ websites, apps and custom tools delivered
Selected work
All 26 projectsMaterial Matters
A lead-to-cash ERP, built solo, where one catalogue runs quotes, invoices and the store
150+ ERP API routes917 products in one catalogue31 CRM API routes behind the store
PowerTrack India
SAGA's India D2C store: a 21-page admin, Razorpay checkout and 40 Vitest test files
21 pages in the store admin40 Vitest test files
SAGA
Film, motion and about 60 renders on a Next.js 16 site built to hand buyers to the store
11 of 13 routes served from the edge cache62 renders, videos and PDFs on the CDN97 community reels on the CDN, shuffled in six at a time
Eubiq India
A product site that shows hospitals every panel and finish before they call sales
63 → 95+ SEO score−31% bounce rate+22% inquiries
GLER
A bilingual, video-led brand site for The Sixty One's premium power-track line
2 languages, with /ru routes6 series pages on one shared template481 translated strings per language
WhatsApp assistant
A WhatsApp Cloud API and OpenAI bot that sends product updates and answers FAQs
1,000+ recipients reached daily78% open rate60% less manual support work
abhiMgaao
A Flutter grocery app for a neighbourhood kirana store, live on Google Play
1K+ installs on Google Play4.8 rating on Google Play4 weeks from start to delivery
Arzi
Photos, signatures and documents, fitted to each form's exact rules before upload
Brands and teams I've built for
Since 2019 I've built for product companies, brands, stores and labs in Dubai and India: the 61 FZCO group's sites, stores and ERP, and 35+ websites, apps and custom tools across PixelKrafts client work and side projects.
What people say
“Shuja's ability to quickly understand complex technical requirements, coupled with his innovative approach to problem-solving, was impressive. He was proactive in taking on responsibilities, and his dedication to delivering high-quality work was evident in all his tasks.”
Common questions
Are you available for freelance or contract work?
Yes: I take on a few select builds alongside my role at The Sixty One (61 FZCO), where I’m an SDE 1.
What kind of projects do you take on?
ERP, CRM and internal tools; online stores and payments; AI assistants and automation; and websites and brand sites. I’m also open to talking about full-time or contract roles.
How much does a project cost?
It depends on the scope, so I quote after a short call. The contact form asks for a rough budget range to start from.
What’s your tech stack?
Mostly TypeScript, Next.js, React, Node.js and PostgreSQL on Supabase. For commerce: Razorpay, Clerk, Sanity and Resend. For AI features: Gemini, OpenAI and DeepSeek. For hosting: Vercel and Bunny CDN. I use PHP and MySQL, WordPress and WooCommerce, or Flutter and Firebase when a project calls for them.
Do you work with clients outside India?
Yes. I’ve worked remotely from New Delhi for The Sixty One (61 FZCO) in Dubai since February 2025, and built edificiocmi.com for a design-build firm in Mississauga, Saint John and Atlanta. I work on India Standard Time (UTC+5:30).
Can you take over an existing site or system?
Yes. I moved materialmatters.in off Sanity (778 products and 1,371 media files, 1.65 GB, SHA-1 verified, with zero failures), re-engineered 61 FZCO’s infrastructure after a surge of 3K users in 20 minutes caused a failure, and lifted eubiq.in’s SEO score from 63 to 95+.
Can I trust the AI features you build?
I build them to be checked. The Material Matters CRM assistant cites the CRM records behind every answer, filters what it can read by the asker’s role, and falls back between Gemini, GPT and DeepSeek when one provider fails.
How long does a build take?
It depends on the scope, which we pin down on the first call. For a sense of pace: abhiMgaao, a Flutter and Firebase grocery app, went from start to delivery in 4 weeks.
Are you open to full-time roles?
Yes. Pick “Full-time or contract role” on the contact form. I’ve been an SDE 1 at The Sixty One (61 FZCO) since August 2025, after joining as a web development intern in February 2025.
How do we start?
Book a short call, or send the contact form with the problem, the timeline and a budget range.
Got an ERP, store or AI idea?
Tell me the problem, the timeline and a rough budget, or book a call. I read every message myself.