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Ferri
Krisdiantoro.

I build WhatsApp AI agents, business automations, and web apps for small and mid-size businesses.

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100+
Deliverables shipped
70+
Client projects
2+
Years with clients
Indramayu
West Java, ID
WhatsApp AI agentsn8n & ERP automationWeb appsComputer vision
FW

Portfolio

Featured Projects

Recent client and product work across AI agents, automation, and full-stack apps. Client names are kept confidential.

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Services

What I build

The four kinds of work clients hire me for most, with real examples from the projects above.

WhatsApp AI agents

An assistant on your WhatsApp number that answers customers, qualifies leads, sends quotes and payment links, and hands over to a human when needed.

WhatsAppn8nLangChainXendit

Examples: cooperative member platform, window-blinds retailer, medical-supply distributor

Business automation & integrations

Connect the systems you already use so reports, stock, and orders move on their own instead of being copied by hand.

n8nOdooMokaposTelegram

Examples: Odoo × Shopee sync, nightly POS sales report to WhatsApp, ad ROAS monitor

Web apps & dashboards

Admin panels, booking and catalog sites, and internal tools that replace spreadsheets, with roles, approvals, and PDF invoices.

Next.jsSupabasePostgreSQLTailwind

Examples: scaffolding rental system, Australian car subscription site, franchise POS

Computer vision

Camera-based detection and measurement that runs on-site, from safety compliance to quality control on the production line.

YOLOPyTorchRoboflowPython

Examples: PPE compliance VMS, spray-nozzle inspector, activity recognition

Testimonials

What Clients Say

Reviews left by buyers on Fastwork. See all reviews

“The service was incredibly good and responsive. The response time was very fast, friendly, and truly helpful. Ferri is very skillful and his service is definitely worth it for various complex projects.”

Fastwork buyer

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Fastwork

“Overall excellent experience. Ferri was fast to execute ('gercep') and provided valuable technical advice for our project needs. Great work, we will definitely order again in the future.”

Business Client

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Fastwork

“Excellent quality and very open to feedback. He was willing to make revisions until the result was perfect. Highly satisfying experience.”

Tech Client

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“The work was done exceptionally well and very responsive. Highly recommended for anyone looking for fast and accurate results.”

SME Owner

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Fastwork

“Delivered exactly as requested and the execution was very fast. Very good fast response and excellent workmanship.”

Fastwork buyer

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Fastwork

“Simply the best service. Very friendly and helpful throughout the process.”

Fastwork buyer

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Got a process that eats your team's time?

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