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CTO-AS-A-SERVICE

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.

HK Hong Kong Native Team
10+ yrs Senior Engineering Experience
4 Weeks Typical MVP Timeline

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
[01] Best for: Startups building their first product & SMEs digitizing operations

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
  • React / Next.js
  • Node.js
  • Python
  • PostgreSQL
  • AWS
Learn more
AI agents and LLM integration
[02] Best for: Companies automating operations & building AI-powered products

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
  • OpenAI / Claude
  • LangChain
  • RAG Systems
  • Vector DB
  • Python
Learn more
Mobile App Development
[03] Best for: Businesses reaching customers on mobile

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.

  • React Native
  • Flutter
  • iOS
  • Android
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UX/UI Design
[04] Best for: Products that need to convert visitors into paying customers

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.

  • Figma
  • Design Systems
  • Prototyping
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AI Automation & RPA
[05] Best for: Teams drowning in repetitive manual work

AI Automation & RPA

WhatsApp chatbots, workflow automation, data pipelines, and intelligent process optimization. Replace repetitive manual work with dependable automation.

  • WhatsApp API
  • RPA
  • Workflow
  • Chatbots
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System Integration & ERP
[06] Best for: Businesses with disconnected systems that need to talk to each other

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.

  • API
  • SAP / Odoo
  • Shopify
  • ETL
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Cloud & DevOps
[07] Best for: Failed projects that need rescue & systems that need to scale

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.

  • AWS / Azure
  • Docker / K8s
  • CI/CD
  • Migration
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Membership & Booking Systems
[08] Best for: Gyms, salons, clinics, and service-based businesses

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.

  • CRM
  • Scheduling
  • Payment
  • SaaS
Learn more
WORKED WITH
Startups SaaS Platforms Fintech Retail & eCommerce Healthcare Education Logistics F&B Real Estate Manufacturing
VIEW PLANS

AI-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.

4 Week MVP Concept to Production
10+ Years Experience Production Software at Scale
12 Core Services Full-Stack Tech Partnership
100% Code Ownership Yours From Day One

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

React Next.js Node.js Python TypeScript PostgreSQL OpenAI Claude AWS Docker Figma Stripe React Native Flutter MongoDB LangChain React Next.js Node.js Python TypeScript PostgreSQL OpenAI Claude AWS Docker Figma Stripe React Native Flutter MongoDB LangChain

HOW DOES IT WORK?

Free consultation
STEP 1 Week 1–2

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).

What you get:
  • Technical audit report with recommendations
  • Architecture proposal & technology selection
  • Project timeline & budget estimate
Architecture and design
STEP 2 Week 2–4

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.

What you get:
  • System architecture diagrams
  • UX/UI wireframes & interactive prototypes
  • AI integration blueprint (if applicable)
Development and build
STEP 3 Week 4–8

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.

What you get:
  • Weekly demo calls with working software
  • Continuous deployment to staging environment
  • Real-time Slack channel for questions & feedback
Deploy and support
STEP 4 Launch + Ongoing

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.

What you get:
  • 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.

before
HK TutorLink old website
  • Outdated legacy website
  • No mobile responsiveness
  • Manual tutor matching
OUTDATED SITE
after
HK TutorLink platform
  • AI-powered tutor matching
  • 500+ active users
  • Modern, mobile-first design
LIVE AT HKTUTORLINK.HK
OUR TECH STACK
ReactNode.jsPostgreSQLAWSStripe

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.

16+ Engineers & Specialists

Core team + trusted specialist network — we scale the right expertise to your project, without the overhead of a large agency.

× 1

Project Manager

Delivery & Coordination

× 1

Lead Engineer

Full-Stack Architecture

× 3

Frontend Engineers

React, Next.js, Vue.js

× 3

Backend Engineers

Node.js, Python, Go

× 2

Mobile Developers

React Native, Flutter, Native

× 2

AI Engineers

LLM, RAG, Computer Vision

× 2

UX/UI Designers

Figma, Design Systems

× 2

DevOps & QA

AWS, Docker, Testing

Headquartered in Hong Kong · Remote-first worldwide

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.

In-House Team (HK) HK$220,000+/mo CTO + 2 developers + designer + benefits + office
VS
Astera Technology ~HK$62,000/mo CTO + full dev team + design + DevOps — all included

Standard Engagements

100% CREDITED TO YOUR PROJECT

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.

HK$ 25,000 / 1 week
  • 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 Sprint
ONE-TIME BUILD

One-Time Project

Fixed scope, fixed price, milestone payments. Perfect for a defined MVP, website redesign, or system integration.

Custom Quote Milestone-based
  • Fixed scope & timeline
  • Full UX/UI design included
  • Development, testing & deployment
  • 30 / 40 / 30 payment schedule
  • 100% code ownership + 30-day support
Request a Proposal

Strategic Partnerships — by invitation only

OUTCOME-ALIGNED

Revenue / Profit Share

A reduced monthly retainer paired with a percentage of generated revenue or profit. We share the upside — and the accountability.

Reduced Fee + % Share Terms negotiated per engagement
  • 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
Eligibility: registered HK/APAC businesses with a live revenue-generating product, clear unit economics, and a technical gap Astera can close. Subject to mutual fit review.
Request a Review
TECHNICAL CO-FOUNDER MODEL

Equity Partnership

Minimal cash fee in exchange for an equity stake. We become your technical co-founder — long-term, committed, skin-in-the-game.

Minimal Fee + Equity Long-term partnership
  • Significantly reduced cash fees
  • Technical co-founder level involvement
  • Long-term product & architecture ownership
  • Vesting & exit terms defined upfront
Eligibility: incorporated pre-seed to Series-A companies with a committed founder team. Subject to due diligence, mutual fit, and defined vesting/exit terms. Not offered to individuals or pre-incorporation ideas.
Pitch Your Company

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.

We take on a limited number of projects at a time to ensure quality.

Free Consultation Includes

  • 30-minute video call
  • Project scope review
  • Technology recommendations
  • Timeline & budget estimate
  • No commitment required

What Happens Next

  1. We review your submission
  2. Personal follow-up via WhatsApp/email within 24 hours
  3. Free 30-min discovery call to discuss your project
  4. Custom proposal delivered within 3 business days
WhatsApp +852 5911 6351
Based in Hong Kong · Remote-first engagements