hatang.dev
Built by Sota Labs× SotaTek

We build the products we needed ourselves.

hatang.dev started inside Sota Labs, the products unit of SotaTek. Every product we shipped for Vietnamese users needed the same things: email that lands, a support inbox that speaks Zalo, payments that issue a hóa đơn điện tử. We built them once, properly, and opened them up.

The SotaTek and Sota Labs team

The products that run on it

1,300+
Vietnamese engineers
25
Countries served
12
Offices across 7 countries
10 years
Of software development

Origin

A decade of building software for the world. Now infrastructure for Vietnam.

SotaTek, short for State of the Art Technology, was founded in Hà Nội by seven founders on 11 August 2015 and grew into one of Vietnam's largest engineering companies. Sota Labs is where it builds its own products; hatang.dev is the platform under all of them.

01

Dogfooding

Every feature is in production somewhere before it reaches you.

Học Đi's exam-season support, Saydi's Zalo and Messenger inbox, tatca.ai's transactional email: each product on this page runs on the same APIs you get. When something breaks, our own products break first, and we fix it first.

02

Local by design

Global-grade engineering, Vietnamese details done right.

Zalo OA, VietQR, hóa đơn điện tử, VND pricing, Vietnamese-language AI. These are not add-ons bolted onto a Western product; they are the reason the platform exists.

03

Standing on SotaTek's foundations

The company behind hatang.dev is audited and certified. Your customer data sits with an operator that already meets the standards enterprise clients in 25 countries require.

SotaTek receiving the Sao Khuê award

Sao Khuê, Vietnam ICT Excellence

The highest award in the Vietnamese IT industry, presented by the Vietnam Software and IT Services Association (VINASA). SotaTek has been honoured repeatedly in the Software Development Services category.

SOC 2 Type II certified

SOC 2 Type II

International certification for data security and operational integrity.

CMMI DEV Maturity Level 3

CMMI DEV ML 3

International certification for the software development process, Maturity Level 3.

ISO 9001 quality management

ISO 9001

International standard for quality management, applied to every product we ship.

A question for Sota Labs?

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