Building a Mobile Banking App with a Vietnam Development Team

Mobile banking is no longer just a convenience—it has become the primary channel for banking services worldwide. To stay competitive in today’s digital-first world, financial institutions need mobile apps that are not only secure and user-friendly, but also innovative, scalable, and compliant with ever-changing regulations.

Instead of relying solely on costly in-house development teams, many global banks are turning to specialized offshore development partners. Among global outsourcing destinations, Vietnam has emerged as a premier choice, offering a powerful mix of technical expertise, cost-effectiveness, and fintech domain experience—especially when partnering with an established leader like TMA Solutions.

1. Vast & Highly Skilled Talent Pool

Vietnam boasts a large and fast-growing tech workforce—over 500,000 software engineers—many with deep expertise in mobile development, banking integration, cybersecurity, and cloud architecture. Universities are producing graduates well-versed in AI, blockchain, and digital payment technologies critical for modern banking solutions.

2. Exceptional Cost Efficiency Without Quality Compromise

Vietnam offers 30–50% lower development costs compared to Singapore, Hong Kong, or Western markets, while maintaining rigorous quality standards and compliance capabilities. This allows banks to redirect budget toward innovation, customer experience, and advanced security.

3. Proven Global Delivery Track Record

Vietnamese teams have delivered full-scale mobile banking platforms for clients across APAC, Europe, and North America, covering retail banking, corporate banking, and digital wallets—all compliant with standards like PCI DSS, PSD2, and regional banking regulations.

4. Agile, Collaborative Work Culture

Vietnamese engineers are known for adaptability, responsiveness, and proactive communication. They excel in Agile delivery environments, ensuring smooth collaboration and faster release cycles for banking projects.

5. Time Zone Advantage & Communication Skills

Vietnam’s GMT+7 time zone aligns well with APAC business hours and overlaps with European working times, enabling real-time collaboration. English proficiency among senior engineers is strong, with many having extensive experience working directly with overseas clients.

6. Stability & Government Support for Tech

Vietnam offers a stable business environment with strong government backing for IT exports, fintech innovation, and secure digital infrastructure—making it a strategic long-term development hub.

• Global Reach & Credibility: Offices in Vietnam and six other countries, serving clients in 30+ countries.
• Deep Technical Breadth:
  • 700+ Java developers
  • 800+ web & mobile specialists (React, Angular, Node.js, Flutter, Kotlin, Swift)
  • 600+ AI/ML and Big Data engineers
  • 400+ cloud, DevOps, and IoT experts
• R&D-Driven Culture: Ten dedicated innovation centers—including Fintech, AI, IoT, Data Solutions, and Blockchain—ensuring solutions are cutting-edge.
• Proven Enterprise-Grade Delivery: Successfully manages large, complex banking projects with high security, scalability, and uptime requirements.
• 28+ Years of Growth: Founded in 1997, now 4,000+ engineers strong, holding certifications like CMMI, ISO 9001, ISO 27001, and following Agile best practices.
• Robust Talent Pipeline: Close university partnerships, 10,000+ resumes processed annually, 1,000+ training courses each year, and hundreds of internships to ensure future-ready engineers.
• High-Quality Assurance: Global-standard processes and strict security protocols to protect sensitive financial data.

1. Retail & Corporate Banking App

• Challenge: A regional bank needed to unify retail and corporate banking systems into a single, secure mobile app while meeting strict compliance and performance requirements.
• Solution: TMA developed an integrated platform connecting core banking systems, payment gateways, trade finance, and FX services. Features included biometric authentication, multi-factor login, and AI-powered fraud detection.
• Technologies: Flutter (cross-platform), Java Spring Boot backend, secure REST APIs, AWS cloud.
• Impact: Reduced in-branch visits by 40%+, boosted mobile adoption rates, and increased cross-selling through in-app personalized offers.

2. Cross-Border Digital Wallet

• Challenge: A fintech startup wanted a multi-currency e-wallet with instant cross-border transfers and regulatory compliance across multiple countries.
• Solution: Built a multi-currency wallet with QR payments, bill payments, merchant POS integration, loyalty rewards, and real-time FX conversion. Integrated with multiple payment gateways and fraud monitoring AI.
• Technologies: React Native mobile app, Node.js microservices backend, blockchain ledger for transaction logging, Azure AI for fraud detection.
• Impact: Acquired 500,000+ users in the first year, reduced remittance costs by 20%, and improved transaction transparency.

3. BNPL (Buy Now, Pay Later) Solution

• Challenge: A digital bank wanted to add BNPL capabilities to its mobile app to attract younger customers and increase merchant transactions, while ensuring real-time credit checks and regulatory compliance.
• Solution: TMA developed a BNPL module integrated into the bank’s existing mobile platform. The system performed instant eligibility checks, transaction risk scoring, and flexible repayment scheduling. It also integrated with merchant POS systems for seamless in-store and online purchases.
• Technologies: Kotlin & Swift for native mobile integration, Java Spring Boot for backend services, machine learning models for credit scoring, and PCI DSS-compliant payment APIs.
• Impact: Increased merchant transactions by 30% within the first 6 months, boosted customer acquisition among Gen Z and Millennials, and reduced loan default rates with AI-driven risk assessment.

In the competitive world of digital banking, building a standout mobile banking app requires deep domain knowledge, technical excellence, and the ability to deliver securely and at scale—all while managing costs.
Vietnam offers the perfect balance of quality, innovation, and cost efficiency, and TMA Solutions amplifies those advantages with:

• 28+ years of global software delivery experience
• Specialized fintech and banking expertise
• Robust security and compliance capabilities
• A proven track record in enterprise-scale mobile banking projects

Whether you’re launching a new mobile banking app or modernizing your existing platform, TMA provides the right blend of talent, technology, and strategic insight to turn your vision into reality—on time, on budget, and to world-class standards.