The night shift your web studio didn't know it had.
English copy, SEO checks, multi-device QA, and a real person in Shenzhen - all while your team sleeps. You wake up to finished, brand-ready work, usually within 12 hours.
Why studios choose us
Most freelancers offer copy or SEO. We built a service around what studios actually need: a night shift, a real company, and a person on the ground in Shenzhen.
| Capability | Typical freelancer | Shenzhen Jiajingcheng Technology |
|---|---|---|
| Works while you sleep | Rarely built-in | Core model: delivery by 8am your local time |
| Under your brand | Sometimes | White-label by default |
| Company invoice | Rare for solo work | Invoices from a registered company |
| Multi-device QA | Often one screen | Desktop, tablet, and mobile with screenshots |
| Shenzhen market knowledge | Almost never | Shenzhen-based with Huaqiangbei experience; helps scope options on request |
| Fixed scope and one revision | Varies per project | Written scope, one revision included |
Services
Fixed-scope deliverables for web studios that need reliable overflow capacity.
Landing page copy
Headline, subhead, five short sections, and a clear call to action, written in professional English.
On-page SEO check
Meta title, meta description, H1, canonical, alt text, and internal-link issues on up to 5 URLs.
Multi-device QA
Desktop, tablet, and mobile viewports, broken links, console errors, and screenshots for every finding.
Open-source tool setup
One commercial-license tool installed and configured on your server, with English/Chinese setup docs, verification screenshots, and 30 days of text support.
White-label delivery
Reports and drafts are issued under your brand, so your clients see a seamless handoff.
Overnight turnaround
Brief before bed, drafts and checks waiting when you wake up, usually within 12 hours.
Shenzhen market knowledge
Based in Shenzhen with Huaqiangbei experience. We can help explore suppliers, samples, and logistics case by case, with no unverified promises.
What your studio gains
Built around the moments studios actually feel the pressure.
- Hit handoff deadlines without hiring full-time writers or QA staff
- Turnaround your clients notice: brief at night, work by morning
- One partner for copy, SEO, and QA instead of three vendors
- White-label delivery keeps your studio in front
- Shenzhen market knowledge for exploring hardware, samples, and suppliers on request
- Company invoice, written scope, one revision, no surprises
The Jiajingcheng edge
Not just faster work - a different operating model.
Time-zone night shift
Your evening is our morning. You close the laptop; drafts and checks are waiting by 8am.
Multi-device setup
A local automated testing setup checks desktop, tablet, and phone viewports with screenshots, not guesswork.
Shenzhen market knowledge
A real company and a real person in Shenzhen, close to Huaqiangbei. We help scope suppliers, samples, and logistics case by case, and only promise what we verify.
Company and invoicing
Registered company, invoices, small-scale taxpayer status, and import/export scope in the business license.
Human-reviewed delivery
AI-assisted, human-verified. Nothing ships without a person checking the work.
Fixed scope
Scope in writing, one revision, no login, no payments, no surprise invoices.
If a client project touches physical products or a China-side supplier, our Shenzhen location lets us help explore options - with clear scope and no unverified promises.
Pricing
Start with a pilot. Upgrade when you see the format work.
- Headline, subhead, 5 sections, CTA
- Meta title, meta description, H1
- SEO check on up to 5 URLs
- One revision included
- Delivery by 8am your local time
- Five key user flows
- Desktop and mobile checks
- Screenshots and reproduction steps
- One retest after fixes
- Delivery within 12 hours
- Two fixed-scope checks per month
- Priority scheduling
- One retest on each check
- Same brand-ready report format
- Monthly invoice
- Install and configure one commercial-license tool
- English and Chinese setup guide
- Verification screenshots
- 30 days of text support
- Server, domain, and API costs quoted separately
- 90 days of text support
- Troubleshooting and setup questions
- Upgrade and backup guidance
- Business-day replies
- One scheduled check-in
Prices in USD. China domestic option: ¥399 one-time setup / ¥799 3-month support. Every order is scoped in writing before work starts; server, domain, API, and extra rounds are quoted separately.
How it works
Brief before bed, deliver by morning.
Send a brief
One URL and a few bullet points about tone, audience, and goals are enough.
We work overnight
While you sleep, we write and verify against public pages only.
You wake up to drafts
Copy, checklist, and screenshots are waiting by 8am your local time.
One revision included
Adjust tone, structure, or messaging once, and we refine the draft.
The company behind the work
Shenzhen Jiajingcheng Technology Co., Ltd. is a registered Shenzhen company with invoicing, domestic trade, and import/export capabilities.
- Registered in Shenzhen, Guangdong, China
- Small-scale VAT taxpayer with invoice capability
- Business scope includes technology development, sales, and import/export
- Public pages only; no login, payments, or admin access
Common questions
Can you work under our studio brand?
Yes. Drafts, reports, and screenshots are formatted for your handoff, with no mention of our involvement unless you want it.
What do I need to send?
A URL and a short brief. Bullet points about the client, tone, audience, and goal are enough to start.
How fast is delivery?
By 8am your local time, usually within 12 hours. Overnight means your evening is our working window.
How does payment work?
We agree on scope in writing, send an invoice from Shenzhen Jiajingcheng Technology Co., Ltd., and collect before final delivery.
What is out of scope?
No login, no admin access, no payments, no site changes, no banking or payment-flow testing, and no security testing.
Do you only work online?
No. Overnight delivery is online, and we are based in Shenzhen with Huaqiangbei market experience. For projects that need China-side help, we can explore suppliers, samples, and logistics on a case-by-case basis; we only promise what we can verify.
Can you deploy open-source tools for us?
Yes. We install and configure one commercial-license tool on a server you or we provide, deliver English/Chinese setup docs and verification screenshots, and include 30 days of text support. We do not guarantee rankings or uptime.
What do I need to provide for tool setup?
A server or hosting plan, a domain where needed, and any account or API access created by you. We confirm scope and price in writing before deployment.
What devices do you test on?
Desktop, tablet, and mobile viewports, with screenshots and reproduction steps for every confirmed finding.
Try it on one upcoming page.
Alex · info@jiajingcheng.com · Shenzhen Jiajingcheng Technology Co., Ltd.