Your AI-Powered Tech Team.
One Predictable Monthly Fee.
No CTO? No dev team? Burned by a previous agency? We step in as your full technical partner — from strategy and architecture to code and deployment. AI-native engineering, based in Hong Kong, at a fraction of the cost of building an in-house team.
Hong Kong based. AI-native. Senior engineers only. Direct founder access on every engagement.
Any Technology Challenge. Solved.
Across every industry — from AI-powered startups to enterprise modernization, Astera delivers end-to-end.
Custom Software Development
We architect, design, and build your entire software product — from database to frontend to deployment. Full-stack engineering with production-ready code you own from Day 1.
Typical outcome: a working, revenue-ready platform in the hands of your customers inside a single quarter.
Typical timeline: 4–12 weeks Learn more
AI Agents & LLM Integration
Custom AI workflows, RAG systems, intelligent chatbots, computer vision, and production-grade LLM integration. We don't just demo AI — we ship it to production and make it reliable.
The right AI, in the right place, removes whole categories of manual work — we identify where the leverage is and build it.
Typical timeline: 3–8 weeks Learn more
Mobile App Development
Cross-platform and native mobile apps for iOS and Android. From concept and UX design through App Store review and ongoing updates — shipping product, not prototypes.
Learn more
UX/UI Design
User research, wireframes, high-fidelity prototypes, and design systems. Bilingual (EN/繁中) interfaces that feel native — not translated. Designed in Figma, built for conversion.
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AI Automation & RPA
WhatsApp chatbots, workflow automation, data pipelines, and intelligent process optimization. Replace repetitive manual work with dependable automation.
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System Integration & ERP
Connect your CRM, ERP, eCommerce, and internal tools through custom APIs and data pipelines. We integrate SAP, Odoo, Shopify, and bespoke systems into one unified workflow.
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Cloud & DevOps
Cloud migration, infrastructure setup, CI/CD pipelines, and code rescue for failed projects. If another agency left you with broken code, we stabilize, fix, and scale it.
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Membership & Booking Systems
Member management, online booking, payment processing, and loyalty programs. Custom-built for your workflow — not a generic SaaS template you'll outgrow.
Learn moreAI-First Engineering
Every solution we build has AI at its core — from intelligent automation to production-grade LLM integrations.
We use AI in our own dev workflow (Cursor, Copilot, Claude) AND build AI products for clients — chatbots, RAG systems, computer vision apps. Both sides of the equation.
Hong Kong Native
Local team, local understanding. We speak your language and your business culture — with global delivery capability.
PDPO-compliant data handling. Octopus, FPS & PayMe integrations. Proper Traditional Chinese UI/UX — not Google Translate. Same-timezone meetings, no overnight delays.
Full Transparency
Fixed monthly pricing, 100% code ownership, zero vendor lock-in. No hidden fees, no surprises.
Weekly demo calls. Daily Slack updates. You see every line of code, every decision, every milestone — in real time.
Rapid Delivery
Full MVPs in 3-4 weeks. We move fast because we've built reusable modules, proven architectures, and AI-accelerated workflows.
Our fastest project went from concept to production in under 4 weeks — fully functional, deployed, and generating revenue.
Whether you're a startup building your first MVP or an enterprise modernizing legacy systems — we have the technology solution.
Why Astera vs. The Alternatives
| Astera | In-House Team | Offshore Agency | |
|---|---|---|---|
| Monthly Cost | ~HK$62,000 (USD $7,950) |
HK$220,000+ (CTO + 2 devs + designer) |
HK$80,000–150,000 (variable quality) |
| Timezone | Same timezone (HKT) | 8-12 hour gap | |
| Local Knowledge | PDPO, Octopus, FPS | ||
| Bilingual UX | Native Traditional Chinese | Machine-translated | |
| Scale Flexibility | Scale up/down instantly | Months to hire/fire | |
| Code Ownership | 100% yours from Day 1 | Varies by contract |
TECHNOLOGIES WE BUILD WITH
HOW DOES IT WORK?
Discovery & Audit
We start with a kickoff call to understand your business, goals, and technical landscape. Then we conduct a thorough audit of your existing systems (or validate your idea if starting from scratch).
- Technical audit report with recommendations
- Architecture proposal & technology selection
- Project timeline & budget estimate
Architecture & Design
We design scalable system architecture, create UX/UI wireframes, and plan AI integrations. You review and approve before a single line of code is written.
- System architecture diagrams
- UX/UI wireframes & interactive prototypes
- AI integration blueprint (if applicable)
Build & Iterate
Rapid development using our proven modules and AI-accelerated workflows. You see progress every week through live demos and Slack updates — no surprises at the end.
- Weekly demo calls with working software
- Continuous deployment to staging environment
- Real-time Slack channel for questions & feedback
Launch & Support
We deploy to production, hand over all source code and documentation, and provide ongoing maintenance. You own 100% of the code. Zero lock-in — leave anytime, take everything.
- Production deployment & monitoring setup
- Complete source code & documentation handover
- Ongoing maintenance & priority support
Where Ideas Get Built
A growing gallery of production launches. Click any card to visit the live product.
HK TutorLink
HK TutorLink is a tutoring matching platform where students can find verified tutors, book sessions, and manage their learning progress online.
- Outdated legacy website
- No mobile responsiveness
- Manual tutor matching
- AI-powered tutor matching
- 500+ active users
- Modern, mobile-first design
More Client Launches
A growing gallery of sites and products we've shipped. Hover any card for tech stack and live link.
Our showcase grows with every engagement. New case studies publish here as projects go live.
A Senior Tech Team That Thinks Like Founders
Isaac Ho — Founder & CTO
Full-stack engineer and AI practitioner with over a decade of experience building production software. Founded Astera Technology Limited (星澤科技有限公司) in 2026 to give Hong Kong businesses access to senior-level technical leadership without the overhead of building an in-house team. Personally involved in every engagement.
Core team + trusted specialist network — we scale the right expertise to your project, without the overhead of a large agency.
Project Manager
Delivery & Coordination
Lead Engineer
Full-Stack Architecture
Frontend Engineers
React, Next.js, Vue.js
Backend Engineers
Node.js, Python, Go
Mobile Developers
React Native, Flutter, Native
AI Engineers
LLM, RAG, Computer Vision
UX/UI Designers
Figma, Design Systems
DevOps & QA
AWS, Docker, Testing
Flexible Plans for Every Stage.
Whether you need a one-time build, an ongoing tech partner, or a co-founder-level commitment — we have a model that fits.
Standard Engagements
Discovery Sprint
Risk-free entry point. One week of senior-led audit, architecture, and a concrete action plan — 100% of the fee credited toward any follow-up engagement.
- Full technical audit & risk review
- Architecture & tech-stack proposal
- Prioritised roadmap & estimate
- 60-minute walkthrough of findings
- Credit 100% toward any follow-up engagement
Paid in full on booking. Non-refundable once work has started. Credit valid against any engagement booked within 90 days. Full Terms of Service apply.
Book a Discovery SprintOne-Time Project
Fixed scope, fixed price, milestone payments. Perfect for a defined MVP, website redesign, or system integration.
- Fixed scope & timeline
- Full UX/UI design included
- Development, testing & deployment
- 30 / 40 / 30 payment schedule
- 100% code ownership + 30-day support
Monthly Retainer
Your full technical team on tap — CTO-level strategy, full-stack engineering, design, and DevOps in one package. Pause or cancel any month.
- CTO & tech strategy leadership
- Full-stack software development
- UX/UI design & prototyping
- DevOps & cloud infrastructure
- Weekly demos & Slack channel
- Pause or cancel any month
- 100% code ownership from Day 1
Billed monthly in advance, 14-day invoice terms. 30 days' written notice to terminate. Third-party service costs (hosting, APIs) paid directly by you — no markup. Full Terms of Service apply.
Start Your PartnershipStrategic Partnerships — by invitation only
Revenue / Profit Share
A reduced monthly retainer paired with a percentage of generated revenue or profit. We share the upside — and the accountability.
- Lower monthly cash outlay than retainer
- % of revenue or profit (agreed in contract)
- Full Astera delivery team at the table
- Quarterly business reviews baked in
Equity Partnership
Minimal cash fee in exchange for an equity stake. We become your technical co-founder — long-term, committed, skin-in-the-game.
- Significantly reduced cash fees
- Technical co-founder level involvement
- Long-term product & architecture ownership
- Vesting & exit terms defined upfront
Transparent about what's not included:
Third-party service costs (hosting, AWS, API fees like OpenAI/Stripe, domain registration) are paid directly by you — so you always own your accounts and data. No markup, no middleman.
READ THE FAQs
Public HK salary benchmarks (JobsDB, Talent.com, Michael Page, Robert Half) put a full-time CTO at HK$600,000–HK$1,200,000 per year in base salary alone. Add equity, MPF, medical, recruiter fees (typically 20–25% of first-year salary), a 3-month notice period, and 6+ months to ramp — the real first-year cost is closer to HK$2M.
With Astera you get CTO-level strategy plus the full delivery team (engineers, designers, DevOps) for one predictable monthly fee, starting in days instead of months. If your needs change, you pause or cancel with 30 days' notice — no severance, no awkward exit, no single point of failure if your CTO gets poached.
Typical timelines for our most common engagements:
• Web MVP — 3 to 6 weeks (discovery week → design → build sprints → launch).
• Mobile app (iOS + Android) — 6 to 10 weeks, including App Store / Play Store submission.
• AI / LLM integration — 3 to 8 weeks depending on data readiness and guardrails required.
• ERP or internal system — 3 to 6 months, usually in 2–3 phased releases.
• Legacy system rescue — 2 weeks to stabilize, 1–3 months to complete.
We only commit to a firm timeline after the Discovery Week, when we've seen your codebase, data, and integrations. Anyone quoting a fixed number on a 30-minute call is guessing.
Yes — and more importantly, the ownership is operational, not just legal. Here's exactly what you get:
• The GitHub / GitLab repository sits under your organization from the first commit — not ours.
• Cloud infrastructure (AWS, GCP, Cloudflare, Vercel) is provisioned in your accounts with your billing — we get least-privilege access, not ownership.
• Figma files, design systems, and brand assets are delivered in your Figma org.
• We avoid proprietary SDKs and closed-source lock-in — the stack is open-source and portable by default.
• At handover you get a README, an architecture diagram, a runbook, and a 30-minute walkthrough video for any future engineer.
If you decide to bring it in-house or switch agencies, you walk away with everything needed to continue without us.
On the surface, offshore shops in South Asia or Eastern Europe look 30–50% cheaper per hour. In practice, total cost of ownership often ends up higher. Here's what we've seen rescuing offshore-built projects:
• Timezone friction — an 8–12 hour gap turns every question into a 24-hour round trip. A 2-day task becomes a 2-week task.
• Rework from misunderstanding — subtle requirements get lost in translation, especially anything involving HK-specific business rules, PDPO, or Chinese UX.
• Local compliance gaps — most offshore teams have never touched Octopus, FPS, PayMe, or Stripe HK, and don't know what PDPO requires.
• Hidden senior swap-outs — the senior you interviewed often doesn't do the actual work; juniors pick up the tickets.
Astera is Hong Kong-based: same timezone, same business culture, native Cantonese / Mandarin / English. The senior who pitches is the senior who builds. We've inherited enough offshore projects to know the real TCO math.
Yes — most of our clients are non-technical founders, business owners, and operators. This is literally what CTO-as-a-Service is for.
• We translate your business goals into technical strategy — you don't need to know Kubernetes from Kafka.
• Weekly demos are in plain business language (English or Cantonese), not jargon. We show working features, not Jira boards.
• We represent your interests in vendor conversations — hosting, API contracts, compliance — so you're not being sold to alone.
• We prepare board-ready progress summaries if you need to report up to investors or partners.
• If you want to learn more about the tech, we'll teach you; if you want to stay high-level, we respect that too.
The short answer: you should never be suddenly unhappy, and if you are, you're not locked in.
• Weekly live demos — you see real, working software every single week. Any concern is raised immediately while it's still cheap to fix.
• Daily Slack updates — asynchronous written updates from the team, so you always know what's happening.
• Month-to-month billing — no long-term lock-in on retainers. Cancel with 30 days' notice at any point.
• You keep the code — even if we part ways, everything built up to that point is yours, documented, and runnable.
• No litigation traps — our contract is in plain English and Traditional Chinese, not full of gotchas. Happy to walk through it with your lawyer.
Yes — rescue engagements are one of our most common starting points. Several of our longest client relationships began as failed hand-offs from another agency. Our rescue playbook:
1. Read-only audit (3–5 days) — we inherit the repo, infra, and documentation, then produce an honest report: what works, what is broken, what is salvageable, what should be rewritten.
2. Stabilization (1–2 weeks) — fix the most dangerous bugs, lock down security holes, restore deploys, set up monitoring so nothing silently breaks overnight.
3. Forward plan — re-scope the remaining work with realistic timelines based on what we found, not what the previous agency promised.
4. Execution — finish the original scope, or pivot if the original plan no longer makes sense.
We don't trash-talk the previous team in the report. The goal is to get you working software, not to win an argument.
Ready to Build Something Great?
Book a free consultation. No commitment, no pressure — just a genuine conversation about your business needs and how we can help.