Abdullah Sajjad · Rahim Yar Khan, Pakistan (remote, US-timezone overlap)
I build production web products end to end — from the React frontend to the API, database, and AI layer.
Founding engineer at Lyssin. Lead frontend at Archer Affiliates. Frontend-heavy, AI-powered full-stack.
selected work
Case studies
Lyssin · Founding Engineer · 2024–2026
Building the Blyndspot dashboard from MVP to v1 as the only frontend engineer
A shared foundation — typed routing, URL-driven filters, one generic data table — that let three product surfaces grow without the plumbing fragmenting.
Lyssin · Founding Engineer · 2025–2026
Typed, schema-validated AI outputs across ~20 Bedrock generation flows
One Zod schema, used twice — constraining the model's decoding and validating the response — replaced best-effort JSON parsing across every AI feature.
Archer Affiliates · Lead Frontend Engineer · 2024–Present
Leading the multi-market Archer 2.0 rewrite on a two-person frontend team
Reused a documented architecture instead of starting over — one composition pattern, AI agents pointed at written conventions, every change reviewed — so the codebase stayed consistent through the rebuild.
experience
Where I've built
Nov 2024 — Present
Lead Software Engineer (Founding) · Lyssin (Blyndspot · MyVoyce · Ansir)
Sole engineer on a five-person founding team. Joined to build the frontend, grew into full-stack ownership across three products — UI through API, database, and the AI layer.
- Built the manager dashboard from MVP to v1 as the only frontend engineer
- Schema-validated structured-output layer over Amazon Bedrock across ~20 AI flows
- Refresh-token rotation auth with theft detection; transactional org-deletion cascade across ~25 tables
2024 — Present
Lead Frontend Engineer · Archer Affiliates
Lead frontend on the affiliate platform — mentoring a junior engineer and collaborating with backend, QA, and product.
- Led UI redesigns across the platform, including the bulk product-import flow
- Established component and button-variant conventions across the codebase
stack
Technologies
frontend
backend
ai & cloud
tooling