Senior engineering team in Vietnam
Move fast and keep control. Senior engineers own every line.
AI handles the groundwork. Every decision is made by a senior engineer who answers for it, and the code belongs to you from day one.
Senior engineering team in Vietnam
The engineering team that doesn't feel offshore.
You work directly with the senior engineers who build your product. They follow your roadmap closely and tell you about a problem before your users find it.
80+ products shipped · 40+ clients · 50+ engineers · Since 2016
Selected work
Work we can point at
Find the one closest to what you are building. The full case studies show how each was made.
Industries we have built for include relocation, HR, insurance, F&B, fintech, e-commerce, legal and travel.
“They are one of the reasons ARC has won awards for our technology and innovation.”
ARC Relocation
Relocation · Virginia, USA
- Problem
- Hundreds of clients, and each one needed its own fields and workflows.
- What we built
- A web app that runs transferees, vendors and daily operations, with fields each client lays out by drag and drop.
Agoyu
Moving · USA
- Problem
- A moving quote meant an in-person survey of every room.
- What we built
- A mobile app that turns a video of each room into the inventory list a mover needs, plus a marketplace where movers bid on the job.
CastMe
Model booking startup · USA
- Problem
- Clients had no easy way to find and verify models online, and models had few ways to reach those clients.
- What we built
- A mobile app that connects the two, with verified profiles, portfolios and online payment.
Client stories
In our clients' words
I was looking for an alternative to India for outsourcing our development. Long ramped up a team that met our specific demands, and they have delivered on every project we have assigned.
We’ve been working with BigIn for two years and they’ve turned our vision into reality.
A great team with great knowledge to work with. Punctual, always flexible, and the main reason we recommend BigIn is that you come up with the right solutions to our problems.
BigIn constructed a team that fully invested their time, creativity, and energy into our product.
The Vietnam team I worked with have extensive knowledge in the Guidewire Claim Center space and adapt to a project quickly. Determined, dedicated, and committed to quality deliverables.
The people behind the work
The people accountable for the work above.
They lead every BigIn project. Here is what each of them answers for.
- Long Van, CEO & Founder: I started BigIn in 2016, and I still answer for every client we take on. I decide which new technology goes into your product, and why.
- Minh Truong, Technical Director: I pick technology that fits your budget as well as your roadmap. Tools that still make sense when your product is three years old.
- Tam Mai, Head of AI-Driven Development: I build the AI tools our engineers use every day, and decide what data they may touch. A small senior team that ships what used to take a big one.
- Nam Pham, Head of Business Analysis: I'm your bridge to the team, from scoping to release. We turn a rough idea into a scope you can sign off on.
- Duy Duong, Head of Engineering: Every project starts on a framework we've already proven. Architecture that holds up when your users arrive.
- Danh Nguyen, Head of Design (UI/UX): I set the design bar on every project, and hold it. One design system across every screen, so the product stays consistent as it grows.
50+ engineers behind them.
Meet the full teamWhat we build
Web, mobile and AI products, built by one team
A founder shipping a first product and a company adding AI to the one it already runs get the same team and the same process. BigIn is a software development company in Vietnam, founded in 2016.
MVP for startups
For founders with a first product to launch
A tight scope shipped in 3–6 weeks, and the code is yours from day one.
See CastMeWeb apps
For teams that run their business in the browser
Portals, SaaS platforms and internal tools, built on Laravel, Vue.js, Node.js or .NET.
Web developmentMobile apps
For products people mostly use on their phones
iOS and Android apps, cross-platform on React Native or Flutter.
Mobile developmentAI chatbots and agents
For teams answering the same questions every day
Assistants that take actions in your systems, limited to what they are allowed to touch.
Our servicesAI features
For products that already have users
Search, extraction, summarization and ranking, built into the product your users already have.
See AgoyuData and automation
For operations held together by spreadsheets
Pipelines that move and reconcile data, with the manual steps between them removed.
Our services
How we work
Let AI do the groundwork. Engineers make the calls.
AI makes the team faster. An engineer still signs off every step.
- 01
Planning
- AI does
- Pulls research and past projects into a first scope.
- Engineer decides
- Agrees the scope and priorities with you.
- 02
Analysis and design
- AI does
- Drafts design options side by side.
- Engineer decides
- Chooses the direction with you before anything is built.
- 03
Development
- AI does
- Scaffolds code and runs a first review.
- Engineer decides
- Writes the business logic and approves every merge.
- 04
Testing
- AI does
- Generates coverage from the spec and surfaces edge cases.
- Engineer decides
- Decides what blocks a release.
- 05
Staging environment
- AI does
- Writes CI/CD checks from the diff.
- Engineer decides
- Approves the release and keeps rollback ready.
- 06
Evaluation
- AI does
- Checks the demo build against the spec.
- Engineer decides
- Walks you through it before sign-off.
Tell us what you're trying to ship. We'll tell you honestly what it takes.
You'll talk to a senior engineer, not a salesperson. If we're not the right fit, we'll say so.
Book a 30-minute call with an engineering leadWe reply within one business day.