Let's talk.
We read every message. For design-partner inquiries, integrations, press, or careers — drop us a line and we'll route it to the right person.
Reach us directly
Email is the most reliable channel.
- General postmaster@seii.top
- Partnerships partners@seii.top
- Press press@seii.top
- Careers careers@seii.top
- Security security@seii.top
Office
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Company
上海禧顶科技有限公司
Shanghai Seii.top Technology Co., Ltd. - Address Shanghai, China (full address on request)
- Website https://seii.top/
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Careers
We're a deliberately small team in Shanghai. We hire generalist engineers (TypeScript + Flutter), product-minded designers, and the rare ops person who likes infra and end-user experience.
You'll probably enjoy working with us if you have a strong opinion about why Catch Notes mattered, ship fast and rebase often, and would rather get one thing exquisitely right than three things merely fine.
Open positions are kept short. Email careers@seii.top with:
- A two-line intro of who you are
- Something you built (anything — code, docs, a side project)
- Why CaptureX
We respond to every email within a week.