Innovating Tomorrow's Tech Today

Your trusted IT partner in Vietnam. English-fluent, AI-augmented engineering teams building fintech, blockchain, payment and AI products for businesses worldwide.

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Cynergi Outlook

Our view of what comes next in fintech, blockchain, payments and AI, and how we engineer it with our partners.

Hand holding a glowing lightbulb, representing innovation

About Cynergi

Welcome to Cynergi, where we transform tomorrow's tech into today's solutions. As a software development company in Vietnam specialising in fintech, blockchain, payments and AI, we help businesses worldwide innovate and achieve their strategic goals.

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Why Cynergi

Your Trusted Technology Partner in Vietnam

International clients choose Cynergi for senior engineering talent that communicates clearly, adopts the latest AI practices and delivers to global standards.

Fluent English Communication

Our engineers, QA, designers and PMs work directly with your stakeholders in English: stand-ups, specs, code reviews and demos, with no translation layer.

AI-Augmented Delivery

Every team works daily with Claude, Claude Code and Claude Design to research, build, test and document faster, while people stay accountable for every decision.

Knowledge Management for AI

We structure project knowledge (specs, architecture decisions, runbooks and context files) so AI tools and new team members always work from accurate, up-to-date context.

Deep Fintech Expertise

From trading platforms and digital-asset custody to payment gateways, our teams already know the domain, so you spend less time explaining and more time shipping.

Time-Zone Friendly

Working in GMT+7 gives us full overlap with APAC, shared hours with Europe and a natural overnight handover with the Americas.

Quality & Security Built In

Code review, automated testing, CI/CD pipelines and cloud security best practices are part of every engagement, not optional extras.

Our Expertise

From our engineering hub in Vietnam, we deliver fintech, blockchain, payment and AI software development that drives innovation and success for businesses worldwide.

Fintech Solutions

Blockchain Development

Payment Solutions

AI Application

Fintech Solutions

Empower your financial services with our expert fintech solutions. From custom trading software to optimised financial management platforms, we provide comprehensive services to meet your needs and drive digital transformation.

Custom Trading Software Development

Secure Payment Gateway Integration

Financial Management Platform Optimisation

Digital Banking Solutions

Technology Stack

Proven Tools, Modern Stack

We build with the same cloud, engineering and collaboration tools used by leading international product teams, so we plug straight into your environment from day one.

Cloud & DevOps

Secure, scalable infrastructure with automated delivery.

AWS
Kubernetes
Docker
GitLab CI/CD

Backend & Data

High-performance services and real-time data pipelines.

Golang
Java
Rust
Kafka
Redis
PostgreSQL

Web & Mobile

Responsive web apps and cross-platform mobile products.

React
React Native
JavaScript

AI-Augmented Engineering

AI built into how we design, code, test and document.

Claude
Claude Code
Claude Design

Design & Quality

User-centred design and automated quality assurance.

Figma
Selenium

Collaboration & Delivery

Transparent, documented delivery in your tools.

Jira
Confluence
Google Workspace

Our Talent

The Team Behind Your Product

Build a dedicated squad or extend your team with the exact skills you need. Every Cynergi specialist is experienced, fluent in English and works hand-in-hand with AI to deliver faster without cutting corners.

Engineering

Golang Engineer

Build high-throughput, low-latency backend services and APIs for trading, payment and blockchain platforms.

Go
Microservices
gRPC / REST
Kafka
PostgreSQL
Redis

Engineering

Java Engineer

Design robust, enterprise-grade systems with a strong focus on reliability, security and maintainability.

Java
Spring Boot
Microservices
Kafka
PostgreSQL
JUnit

Engineering

React Engineer

Craft fast, accessible and pixel-perfect web applications, from trading dashboards to customer portals.

React
TypeScript
JavaScript
State Management
Figma to Code

Engineering

React Native Engineer

Deliver cross-platform iOS and Android apps with native-quality performance from a single codebase.

React Native
iOS & Android
TypeScript
App Store Release
Push & Deep Links

Engineering

Fullstack Engineer

Own features end to end, from database schema and APIs to UI, deployment and monitoring.

React
Golang / Java
PostgreSQL
Docker
AWS
GitLab CI/CD

Quality Assurance

Automation QA

Build automated regression suites wired into CI/CD, so every release ships with confidence.

Selenium
API Testing
CI Integration
Regression Suites
Test Reporting

Quality Assurance

Manual QA

Plan and execute thorough functional, exploratory and UAT testing with clear, actionable bug reports.

Test Planning
Test Cases
Exploratory Testing
UAT
Jira

Design

UI/UX Designer

Turn complex financial and technical flows into intuitive, on-brand experiences backed by design systems.

Figma
Claude Design
Design Systems
Prototyping
User Research

Delivery

Project Manager

Keep scope, timeline and communication on track, with transparent reporting for international stakeholders.

Agile / Scrum
Jira
Confluence
Stakeholder Management
Risk Management

Professional English communication
AI-augmented workflow with Claude & Claude Code
Structured knowledge management for AI
Agile delivery in your tools and time zone

Our Clients

We proudly partner with leading businesses across various industries, delivering innovative solutions that drive success and foster long-term relationships.

Let's Connect

Get in touch with Cynergi! We're here to answer your questions, discuss your needs, and help you achieve your business goals with our innovative solutions.

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