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Secure development partner in Vietnam

# Secure Offshore Software Development in Vietnam

Build secure web apps, mobile apps, e-commerce platforms, Shopify integrations, and blockchain applications with a Vietnam-based engineering team.

689Cloud also provides vulnerability testing, penetration testing, and software hardening services to help clients build and maintain secure software.

Founded in 2018, 689Cloud has delivered 50+ software projects for 10+ customers in the United States, Japan, Australia, and Singapore. Our team provides project management in English, Japanese, and Vietnamese.

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2018Founded
50+Projects delivered
US · JP · AU · SGInternational customers
EN · JA · VIProject management
🛡️Secure by design: development, testing, hardening, and remediation from one Vietnam-based team.
Quality and value

## Japan-Level Quality at Vietnam-Level Cost and Speed

Many companies choose offshore software development in Vietnam to reduce cost and accelerate delivery. But cost alone is not enough.

689Cloud combines Vietnam's development speed and cost advantage with development and testing processes shaped by Japanese quality expectations. Our process was developed with our Japanese co-founder, who has more than 30 years of technology experience in the United States and Japan.

This approach emphasizes careful requirements review, structured project management, documentation, testing discipline, communication quality, and long-term maintainability.

### What Japan-level quality means to us

- ✓Careful requirements clarification before development
- ✓Structured architecture and design review
- ✓Clear documentation and task management
- ✓Regular customer communication and demos
- ✓Functional, regression, and security testing
- ✓Maintainable code and handover documentation
- ✓Long-term product support mindset

Security-first engineering

## Secure-by-Design Software Development

Our product business is based on security solutions, including secure file sharing, content protection, file access control, and DRM/IRM technology. We bring that same security-first mindset to custom software development.

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### Secure Architecture

Security is considered from the beginning: architecture, authentication, authorization, data protection, APIs, cloud configuration, and deployment.

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### Security Best Practices

We apply secure coding practices, access control design, API and cloud security best practices, and protection of customer source code and project data.

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### Tested for Vulnerabilities

Our development process includes security-aware QA, vulnerability testing before release, and remediation support when issues are found.

Software Security Services

## Vulnerability Testing, Penetration Testing, and Software Hardening

689Cloud does more than build software. We also help clients test, harden, and improve the security of applications developed by other vendors, internal teams, or previous contractors.

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### Vulnerability Testing

Identify security weaknesses in web applications, APIs, mobile apps, and cloud-connected systems, including broken authentication, access control issues, injection, insecure configuration, exposed sensitive data, dependency risks, and business logic flaws.

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### Penetration Testing

Simulate real-world attack scenarios against applications and APIs before launch, before a major release, after a vendor handover, or as part of an ongoing security review program.

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### OWASP-Based Security Review

Assess applications against OWASP Top 10 and OWASP API Security Top 10 risks, including injection, broken access control, authentication failures, security misconfiguration, vulnerable components, and insecure APIs.

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### Burp Suite Testing

Use Burp Suite and related testing workflows to inspect web traffic, test authentication flows, identify exploitable vulnerabilities, and validate security controls in modern web applications.

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### AI-Assisted Security Testing

Use AI tools to support code review, test generation, vulnerability discovery, and remediation planning while maintaining customer data protection and confidentiality requirements.

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### Software Hardening and Remediation

Review issues, propose remediation, implement fixes, harden the application, and retest the system to confirm that vulnerabilities have been resolved.

Development services

## Web, Mobile, Shopify, E-commerce, and Blockchain Development

689Cloud provides full-cycle offshore software development services for companies that need practical engineering, secure implementation, and reliable delivery.

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### Web Application Development

Build secure, scalable web applications, dashboards, portals, SaaS platforms, and business systems using Java, Spring Boot, Node.js, React, Angular, Vue.js, REST APIs, relational databases, and cloud infrastructure.

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### Mobile App Development

Develop iOS, Android, and cross-platform mobile applications, including React Native apps, business applications, healthcare apps, customer portals, and crypto wallet applications.

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### E-commerce Application Development

Build marketplaces, order management systems, payment workflows, customer portals, back-office tools, inventory, logistics, CRM, and payment integrations.

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### Shopify Integration

Support Shopify API integration, custom storefronts, third-party service integration, inventory synchronization, order management, CRM integration, logistics workflows, and payment-related functionality.

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### Blockchain, Crypto, and NFT Development

Develop crypto wallet apps, NFT minting workflows, smart contracts, Web3 integrations, token-gated systems, and blockchain-connected web and mobile applications.

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### Cloud, API, and Backend Development

Design backend systems, APIs, and cloud infrastructure using AWS, serverless systems, microservices, Docker-based deployment, CI/CD pipelines, monitoring, and scalable cloud architecture.

Team structure

### Full-Time On-Site Development Team in Vietnam

Our Vietnam development team consists of full-time employees, not temporary contractors. Engineers work on-site in our office, helping us maintain stronger control over security, communication, quality, confidentiality, and compliance.

- ✓Full-time employees, not contractors
- ✓On-site working environment
- ✓Better control over source code and project information
- ✓Consistent internal development standards
- ✓Stronger communication and team accountability
- ✓Better alignment with security and compliance requirements

Communication

### Multilingual Project Management

Offshore development works best when communication is clear. 689Cloud supports project management in English, Japanese, and Vietnamese, helping international clients work smoothly with our Vietnam-based engineering team.

- ✓English project management
- ✓Japanese project management
- ✓Vietnamese engineering communication
- ✓Regular status updates
- ✓Sprint planning and demos
- ✓Requirements clarification
- ✓Documentation and handover support

Experience

## Experience Across 50+ Projects

689Cloud was founded in 2018 and has delivered more than 50 software projects for more than 10 customers. We also build and operate our own SaaS products, including SecureDrive and SecureMail.

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### Founded in 2018

Practical product and custom development experience from Vietnam.

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### 50+ Projects

Web, mobile, e-commerce, blockchain, healthcare, fintech, and cloud systems.

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### 10+ Customers

Customers supported in the United States, Japan, Australia, and Singapore.

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### Security Products

Own SaaS product experience in secure file sharing and content protection.

## Engagement Models

Choose the engagement model that fits your project stage, scope, and budget.

### Project-Based Development

Best for defined projects such as MVPs, proof-of-concepts, e-commerce builds, system integrations, mobile apps, security fixes, and product launches.

- ✓689Cloud manages the team, schedule, delivery, and quality
- ✓Fixed-scope quote or hourly work with flexible requirements
- ✓Best for POCs, MVPs, and projects with clear objectives

### Dedicated Development Team

Best for long-term product development, ongoing maintenance, feature expansion, and continuous improvement.

- ✓Full-time or part-time team options
- ✓Works as an extension of your in-house team
- ✓You manage product direction while 689Cloud supports staffing and engineering execution

## Industries and Application Types

689Cloud has delivered software across multiple industries and application types.

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### E-commerce and Retail

E-commerce applications, Shopify integrations, marketplaces, order management, inventory workflows, logistics, payment integration, and customer portals.

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### Blockchain, Crypto, and NFT

Crypto wallet applications, NFT minting systems, smart contracts, Web3 integrations, token-based systems, and blockchain-connected applications.

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### Healthcare and Medical Systems

Healthcare management systems, medical data workflows, patient-related systems, and integrations involving medical images or healthcare documents.

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### Fintech and Payment Systems

Payment workflows, financial applications, e-wallet features, KYC-related workflows, and transaction systems.

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### Education and LMS

Online training platforms, digital libraries, e-learning workflows, content distribution, and digital content protection.

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### Content Security and DRM

Secure file sharing, document protection, digital rights management, secure content delivery, and access-controlled file workflows.

## Agile Development Process

689Cloud uses an Agile development process with structured planning, short sprints, regular review, and continuous communication.

1
AnalysisBusiness goals, user needs, technical and security requirements
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DesignArchitecture, data models, APIs, UX/UI flow, and sprint plans
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DevelopmentShort iterations, code review, version control, and CI
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TestingFunctional, regression, performance, and security testing
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DeploymentCI/CD, monitoring, and controlled release processes
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OperationsMaintenance, bug fixes, monitoring, and feature expansion

## Frequently Asked Questions

Common questions about offshore software development, security testing, and working with 689Cloud.

Why choose Vietnam for offshore software development?

Vietnam offers strong engineering talent, competitive cost, fast execution, and good time zone compatibility with Asia-Pacific markets. 689Cloud adds Japan-level quality processes, security-first development, and multilingual project management in English, Japanese, and Vietnamese.

What makes 689Cloud different from other offshore development companies?

689Cloud combines Vietnam-level cost and speed with Japan-level quality processes and security-first development. Our team consists of full-time on-site employees, not temporary contractors, and we also build and operate our own security-focused SaaS products.

Can 689Cloud build web applications?

Yes. We build secure web applications, dashboards, SaaS platforms, business portals, APIs, and backend systems using technologies such as Java, Spring Boot, Node.js, React, Angular, Vue.js, and AWS.

Can 689Cloud build mobile apps?

Yes. We develop iOS, Android, and cross-platform mobile apps, including React Native applications, customer apps, business apps, healthcare apps, and crypto wallet apps.

Can 689Cloud support Shopify integration?

Yes. We support Shopify integration, Shopify API development, custom storefronts, inventory synchronization, order management workflows, CRM integration, logistics integration, and e-commerce backend systems.

Can 689Cloud build blockchain or NFT applications?

Yes. We have experience developing blockchain applications for crypto and NFT use cases, including wallet apps, NFT minting workflows, smart contracts, Web3 integrations, and token-based systems.

Do you provide software security testing?

Yes. 689Cloud provides vulnerability testing, penetration testing, OWASP-based application security review, Burp Suite testing, AI-assisted security analysis, software hardening, and remediation support.

Can you test software developed by another vendor?

Yes. We can test applications developed by other vendors, internal teams, or previous contractors, then help identify and fix vulnerabilities.

Can you help fix vulnerabilities found during testing?

Yes. Our engineers can help analyze, prioritize, fix, harden, and retest vulnerabilities in web applications, APIs, mobile apps, and cloud-connected systems.

What testing standards and tools do you use?

We use OWASP-based testing methods, Burp Suite, AI-assisted review tools, manual testing, code review, and engineering review depending on the application, scope, and risk level.

What languages do you support for project management?

We support project management in English, Japanese, and Vietnamese.

Do you provide dedicated development teams?

Yes. We provide dedicated development teams for long-term product development, maintenance, feature expansion, and continuous improvement.

Ready to start?

## Build Secure Software with a Vietnam-Based Development Team

Whether you need web app development, mobile app development, Shopify integration, e-commerce application development, blockchain development, vulnerability testing, penetration testing, software hardening, or remediation support, our full-time on-site team in Vietnam can help.

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