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Ashfaq KayesAK
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Ashfaq Kayes

@ashfaqkayes

AI Agent Engineer at Justify building a bilingual legal assistant that raised exact-section retrieval Hit@5 from 20% to 60%.

Bangladesh
Message

I built Justify as its sole engineer, a bilingual legal assistant that answers questions about Bangladeshi law with citations. I shipped its FastAPI backend on Cloud Run and Flutter web client, and improved exact-section Hit@5 from 20% to 60% with hybrid search.

For my undergraduate thesis, I built a local operating-system agent that turns natural-language goals into Linux shell actions. I added a deterministic safety shield and Docker sandbox, then red-teamed the system with adversarial prompts.

At Technonext Ltd., I built an agentic shopping assistant for the Cartup e-commerce app and owned its mobile order flow through production. I now teach project-based Flutter development at Ostad, including responsible use of AI coding tools.

Experience

Work history, roles, and key accomplishments

OS
Current

Lead Instructor

Ostad

Mar 2026 - Present (8 months)

Teach project-based Flutter development across 3+ batches of the App Development with Flutter & AI course, including practical, responsible use of AI coding tools.

TL

Software Engineer

Technonext Ltd.

Oct 2023 - Jan 2026 (2 years 3 months)

Built an agentic shopping assistant for the Cartup e-commerce app that handles complex product search and filtering, order placement and scheduled orders through tool calls. Owned the mobile order flow from development to production for an app with 1M+ downloads.

CL

Mobile App Developer

Coder71 Ltd.

Jan 2023 - Oct 2023 (9 months)

Developed Flutter and native Android apps for e-commerce, logistics, job-portal and point-of-sale clients.

ST

Mobile App Developer

Spinner Tech

Nov 2021 - Dec 2022 (1 year 1 month)

Developed Flutter and native Android apps for e-commerce, logistics, job-portal and point-of-sale clients.

AT

Jr. Android Developer

Affable Technology

Jan 2021 - Oct 2021 (9 months)

Developed Flutter and native Android apps for e-commerce, logistics, job-portal and point-of-sale clients.

Education

Degrees, certifications, and relevant coursework

NB

Northern University Bangladesh

Bachelor of Science, Computer Science & Engineering

Grade: 3.75/4.00

BSc in Computer Science & Engineering from Northern University Bangladesh, completed in 2025 with a CGPA of 3.75/4.00.

OS

Ostad

Agentic AI Engineering, Agentic AI Engineering

Completed Agentic AI Engineering training from Ostad in December 2025.

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