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Services

Every service exists to make your product succeed

Not a menu of billable hours — a set of disciplines we combine around one goal: software your business can run on.

Flagship

Product Engineering

Strategy, design, build, launch, iterate — one accountable team for the whole life of your product. We bring the owner's mindset we use on our own three SaaS products.

Product strategy & discoveryMVP to version 10Owner's mindset, measured outcomes
Discuss your product

Custom Software Development

Enterprise systems and web platforms, built new or modernized from legacy — full-cycle, senior-led.

  • Web platforms & portals
  • Legacy modernization
  • System integration

50+ systems shipped — many still running years after launch.

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Dedicated Teams

Senior Vietnamese engineers who work as a true extension of yours — same people, compounding context.

  • Long-term product teams
  • Your process or ours
  • English-fluent, timezone-friendly

The model our longest-standing clients use.

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Mobile Development

iOS and Android apps that share one codebase without feeling like it — from consumer to enterprise.

  • Flutter & React Native
  • App Store / Play delivery
  • Offline-first patterns

Shipped on the App Store & Google Play for both Vietnam and US markets.

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Cloud & DevOps

Infrastructure that scales automatically and deploys without incident — engineered for cost and uptime.

  • AWS · GCP · Azure
  • CI/CD pipelines
  • Monitoring & SLAs

Infrastructure serving 50,000-person events at 99.9% uptime.

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AI Solutions

Assistants and automation grounded in your business data — AI where it actually earns its keep.

  • Chatbots on your data
  • Workflow automation
  • RAG & analytics

AI running live in our own products — not a slide deck.

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QA & Security

Layered testing and OWASP-based reviews on every release — quality you stop having to check.

  • Automated & manual QA
  • Security reviews
  • Performance testing

OWASP standard on every release, including our own.

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How a project gets started

01

Talk to us

Free, no strings attached — tell us your problem.

02

Discovery

1–2 weeks, free — we map the problem, users and goals with you.

03

Fixed quote

You decide with a real estimate in hand.

Not sure which service fits? Start with a free discovery.

We map your problem and propose a plan — you decide with a real estimate in hand.

Services — Code4Change | Code4Change