Open to new projects & roles

Umar Jamil — Senior Full-Stack & AI Engineer

I build production systems where product meets intelligence.

9+ years across the full stack — from e-commerce platforms for Lenovo, Cetaphil and ZALORA, to internal tooling at Accenture for Google and Meta, to leading production AI at Saakuru Labs.

View Work

Years shipping: 9+
End-to-end: AI + Full-Stack
Trusted by: Google · Meta

Umar Jamil - Senior Full-Stack & AI Engineer

Lead AI Systems Engineer@ Saakuru Labs

What I do

Six areas where I work

Across the full stack and into production AI — from design system to API to deployment.

Full-Stack Web Engineering

End-to-end product engineering — Next.js, React, Node.js, TypeScript. From design system to API to deployment. Shipped commerce and content platforms for Lenovo, Cetaphil, and Anantara.

→ Lenovo Singapore

SaaS & Subscription Platforms

Multi-tenant SaaS, billing, retention loops, and admin tooling. Built the subscription engine behind Grouu and the enterprise platform behind UOA Group.

→ Grouu Baby Foods

AI Systems & RAG

Production LLM pipelines — retrieval, evaluation, and observability. Author of Hallucination Guard, an open-source toolkit for catching hallucinated outputs in real systems.

→ Hallucination Guard

Real-Time & Performance

Low-latency pipelines, WebSocket data streams, and high-throughput services. Built the real-time data layer powering Emotiv's brain-computer interface platform.

→ Emotiv

Cloud & DevOps

AWS architecture, Dockerized services, and CI/CD pipelines. AWS-certified for advanced development and DevOps. Reduced deployment cycles by 40% at CUE Group.

Engineering Leadership

Currently leading AI systems work at Saakuru Labs. Previously led multi-tenant SaaS development for 10+ startups at CUE Group. Mentored, hired, and shipped.

Have a system in any of these areas you want shipped?

Get in touch→

Selected work

Case studies that shipped

Real projects, real impact — measurable results across commerce, SaaS, and production AI.

Featured

View case study

AI / SaaSLive

PPC Autopilot

Research and run Amazon PPC end-to-end — reverse-engineer competitor keywords, get AI bid suggestions, and let an idempotent rules engine sync changes back to Amazon automatically.

Next.jsTypeScriptAmazon Ads API v3ClaudePostgreSQL

View case study

AI / Open Source

Hallucination Guard

Public on GitHub. Drop-in integration with existing LLM pipelines, designed for production AI teams that need reliability guarantees.

PythonLLM EvaluationRAG+2

View case study

AI / Real-Time SystemsLive

Emotiv — Brain-Computer Interface Platform

Sub-100ms end-to-end latency on neural data streams. Live at emotiv.com.

ReactNode.jsWebSockets+2

View case study

E-CommerceLive

ZALORA

Reduced page load times by 40% through API and database optimization. Live across ZALORA's regional storefronts.

ReactNode.jsPostgreSQL+1

View case study

E-CommerceLive

Lenovo Singapore

Lenovo's flagship Singapore storefront. Live at lenovo.com/sg.

ReactNode.jsMongoDB+1

View case study

E-CommerceLive

Cetaphil Singapore

Galderma's regional Cetaphil site for Singapore. Live at cetaphil.com.sg.

ReactNode.jsPostgreSQL+1

View case study

E-CommerceLive

Anantara Resort — Uluwatu Bali

Direct-booking experience for Anantara's Uluwatu Bali property. Live at anantara.com.

ReactNode.jsPostgreSQL+1

View case study

SaaS / FintechLive

Escape Planner

Live SaaS with free and paid tiers (Stripe). Shareable debt-free plans and PDF export.

Next.jsTypeScriptChart.js+2

View case study

SaaS / FintechLive

Setlary — Earned Wage Access

Live EWA product in Malaysia with employer and employee solutions and App Store / Google Play apps.

ReactReact NativeNode.js+1

View case study

SaaSLive

Grouu Baby Foods

Indonesia's first subscription baby food brand. Live at grouu.id.

ReactNode.jsMongoDB+1

View case study

SaaSLive

UOA Group Malaysia

Real estate portfolio for UOA Group Malaysia. Live at uoa.my.

ReactNode.jsPostgreSQL+1

View case study

Have a system that needs shipping?

Full-stack platforms, AI infrastructure, or both — let's talk.

Start your project View my experience

Open source & writing

How I think, in public

Public artifacts of what I build and how I reason about systems.

Hallucination Guard

chumarjamil/hallucination-guard

Open-source toolkit (CLI, SDK, API) for detecting and mitigating hallucinations in LLM outputs.

Python

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How I Build

/how-i-build

Engineering notes on how I architect production systems — from full-stack platforms to AI infrastructure.

Engineering essays

Background

Experience & credentials

9+ years shipping product and AI systems across the full stack.

May 2025 - Present Current

Lead AI Systems Engineer

Saakuru Labs

EU - Remote

Leading development of production-grade AI systems leveraging LLMs and agentic architectures. Designing and deploying autonomous, multi-step agent workflows with tool orchestration for enterprise clients.

Sep 2022 - Jan 2025

Senior Full Stack Developer

CUE Group

Singapore

Led development of multi-tenant SaaS platforms for 10+ startups. Designed Dockerized services with CI/CD pipelines (GitHub Actions), improving deployment efficiency by 40%.

Oct 2021 - Sep 2022

Full Stack Engineer

Accenture

Kuala Lumpur, Malaysia

Built secure, high-performance APIs for Google and Meta (Facebook) internal tools. Developed complex React applications with modern state management, improving UX efficiency by 25%.

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