Cryptocurrency Wallet Development Company in Haiphong
Generic wallet apps rarely fit a specific product's compliance model or user experience needs. Hurain Technologies builds custodial, non-custodial, hybrid and smart-contract (ERC-4337) crypto wallets tailored to exchanges, Web3 platforms, gaming ecosystems and remittance products — with multi-chain support, in-app swap/staking, and full white-label branding. In Haiphong, that means building to the technical expectations of the local market.
Quick answer
Who provides wallet development in Haiphong?
Hurain Technologies delivers cryptocurrency wallet development for companies in Haiphong, Vietnam, available 24/7, with builds that support VietQR / Napas and MoMo, VAT 10% (temporarily 8% on many items) and the Personal Data Protection Law (effective 2026) and Decree 13/2023.
Reviewed by Shahnavaz Syed, Founder · Last updated
Localised for your market
Wallet Development in Haiphong: local requirements we build for
Currency, tax, payments, data protection and 24/7 support — planned into the project from the first sprint.
Currency & pricing
Prices, invoices and reports in Vietnamese đồng (VND), with the transaction currency and FX rate stored on every record for cross-border sales.
Tax (VAT / GST)
Vietnam applies VAT 10% (temporarily 8% on many items). We build tax-correct pricing, invoice fields and exportable tax reports; your accountant confirms treatment for your products.
Payments
Customers in Haiphong expect VietQR / Napas, MoMo, ZaloPay and VNPay — integrated with automatic reconciliation.
Data protection
Personal data is governed by the Personal Data Protection Law (effective 2026) and Decree 13/2023. We build consent, encryption, access logs and in-region hosting where required.
24/7 availability
Haiphong is on UTC+7 (India (IST) is 1h 30m behind). Our team works 24/7, so your full business day and any out-of-hours incident are covered.
Delivery timeline
Discovery starts within 5 business days of a signed proposal. Most wallet development engagements ship a first production release in 6–14 weeks, with demos every two weeks.
The Challenge
Problems we see teams struggling with
Limited wallet options for your product
Off-the-shelf wallets don't match your compliance model, supported assets, or UX requirements. In Vietnam this also means working to State Bank of Vietnam and the Personal Data Protection Law (effective 2026) and Decree 13/2023.
Custody security and key management
Keys must be secured on-device or on your infrastructure without exposing users to loss. Any customer data involved is also covered by the Personal Data Protection Law (effective 2026) and Decree 13/2023.
Multi-chain complexity
Supporting multiple blockchains from one wallet interface multiplies engineering effort. Teams in Haiphong (UTC+7) feel this most when support is only available in another time zone.
User recovery and support friction
Seed phrase recovery is user-hostile; social recovery and secure enclave options solve this. Any customer data involved is also covered by the Personal Data Protection Law (effective 2026) and Decree 13/2023.
Poor UX driving support ticket volume
Confusing transaction confirmations, unclear gas fee estimates, and cryptic error messages generate a disproportionate share of support load for consumer wallet products. Teams in Haiphong (UTC+7) feel this most when support is only available in another time zone.
App store and platform compliance friction
iOS and Android have specific, evolving policies around crypto wallet apps that can delay or block a launch if not planned for early. In Vietnam this also means working to State Bank of Vietnam and the Personal Data Protection Law (effective 2026) and Decree 13/2023.
Our Approach
What our wallet development work covers in Haiphong
Custodial wallets
You hold keys on secure infrastructure; users get login-based ease of use. Personal data handling follows the Personal Data Protection Law (effective 2026) and Decree 13/2023.
Non-custodial wallets
Users hold their own keys with seed phrase, social recovery, or secure enclave-backed biometrics. Personal data handling follows the Personal Data Protection Law (effective 2026) and Decree 13/2023.
Smart-contract wallets (ERC-4337)
Account abstraction enables gasless transactions, spending limits, and social recovery without sacrificing security. Personal data handling follows the Personal Data Protection Law (effective 2026) and Decree 13/2023.
Multi-chain support
One wallet interface across Bitcoin, Ethereum, EVM chains, Solana, Tron and others. Our 24/7 team schedules this work around Haiphong (UTC+7) business hours.
In-app features
Swap, staking, dApp browser, and WalletConnect integration. Our 24/7 team schedules this work around Haiphong (UTC+7) business hours.
Full white-label branding
Consistent branding across iOS, Android, web and browser extension. Our 24/7 team schedules this work around Haiphong (UTC+7) business hours.
UX research and simplification
Transaction flows and error states designed around what users actually understand, reducing support burden and abandonment. Our 24/7 team schedules this work around Haiphong (UTC+7) business hours.
Technology
Tech stack we work with
Mobile
Key Storage
Chains
Features
Haiphong project brief
How a wallet development project for Haiphong would run
Haiphong has around 2.6 million people and sits on UTC+7; India is 1h 30m behind. Our team works 24/7 from India, so stand-ups and demos can be scheduled in Haiphong business hours rather than ours.
For blockchain and crypto products the first question in Vietnam is licensing and onboarding: State Bank of Vietnam is the body to check with your counsel, and we build KYC/AML, transaction monitoring and audit logs so those checks can be evidenced. Customer data must also follow the Personal Data Protection Law (effective 2026) and Decree 13/2023.
Teams in nearby Vietnam cities such as Da Nang (about 557 km away) follow the same remote delivery model, so Haiphong clients can ask us for references from comparable markets.
Business value
What Cryptocurrency Wallet Development in Haiphong does for your business
Benefits for your company
- Branded wallet for your customers. Custodial or non-custodial wallets under your name, with the chains, tokens and features your business needs.
- Better onboarding. Biometric login, recovery options and clear UX reduce drop-off for new users of your product.
- Integrated with your stack. Connect to your exchange, payments, KYC and analytics instead of relying on third-party wallet apps.
How it can earn or save money
- Swap and transfer fees. In-wallet swaps, bridges and transfers can carry a small service fee.
- Staking and partner revenue. Staking, on-ramp and DeFi integrations can share revenue with partners.
- Customer retention. A wallet keeps users, balances and activity inside your ecosystem.
Illustrative revenue and saving lines, not guaranteed results: outcomes depend on your market, licences and execution.
How we work
How we deliver Wallet Development in Haiphong, Vietnam
Every wallet development engagement in Haiphong, Vietnam follows the same staged, quality-gated process — shaped around your requirements and Haiphong's market. You see progress every day, review it every week, and give written sign-off at every milestone before any payment is due.
- 01
Discover
Scope signed off- Token & protocol workshops
- Chain & custody selection
- Regulatory scoping
- Signed scope
- 02
Design
Threat model OK- Contract architecture
- Tokenomics & access roles
- Key management design
- Threat model
- 03
Build
Testnet accepted- Solidity / Rust sprints
- Testnet deployments
- Gas optimisation
- Demo every sprint
- 04
Secure & Test
Audit cleared- Unit, fuzz & invariant tests
- Independent audit coordination
- Audit fixes verified
- UAT on testnet
- 05
Deploy
Mainnet live- Mainnet deploy via multisig
- Contract verification
- Monitoring & alerts
- Go-live checklist
- 06
Handover
Keys transferred- Role-based sessions
- Recorded walkthroughs
- Admin & ops runbooks
- Documentation handover
- 07
Support
Monitoring live- Dedicated engineer
- SLA helpdesk
- Patches & upgrades
- Quarterly reviews
Client sign-off at every milestone — you approve the working result before you pay.
You always know what was done today — and what happens next
With about 6.5 shared working hours a day between Haiphong and our team in India, questions are answered the same day and your update is waiting for you at around 8:30 PM.
Every working day, around 8:30 PM Haiphong time
- What was completed today
- What is planned for tomorrow
- Blockers and decisions needed from you
- Links to builds you can try
Every Friday, with a live call in your business hours
- Features completed and demo recordings
- Progress against the current milestone
- Risks, open questions and change requests
- Plan and priorities for next week
End of every sprint and milestone
- Working software demonstrated live
- Your feedback captured in the backlog
- Quality-gate checklist shared
- Written sign-off before any payment
What we build in for Haiphong
Local requirements are part of the scope from the Discover stage — not retrofitted before launch.
Data protection
Data handling, consent and retention designed for the Personal Data Protection Law (effective 2026) and Decree 13/2023.
Regulator
Controls, reports and audit trails prepared with State Bank of Vietnam expectations in mind, alongside your local counsel.
Language & currency
Vietnamese interfaces and content, VND pricing, invoices and number formats.
Time zone
Haiphong is on UTC+7; India (IST) is 1h 30m behind. Calls, demos and sign-offs are scheduled in your business hours.
Payment plan
Pay only for work you have accepted
Milestones are customised to your requirements — six or more is typical, and delivery time is agreed around your scope. Every payment after the advance is released only after you have seen the working result and given written sign-off. Here is an example plan:
| Payment | Milestone & acceptance | Share |
|---|---|---|
| Advance | Contract signing Signed contract; protocol workshops and chain selection. | 10% |
| Milestone 1 | Architecture approved Contract architecture, tokenomics and threat model signed off. | 15% |
| Milestone 2 | Testnet v1 First contracts deployed and demonstrated on testnet. | 15% |
| Milestone 3 | Feature-complete testnet All contracts, dApp and admin flows running end to end. | 15% |
| Milestone 4 | Audit passed Independent audit done; every finding fixed and re-verified. | 15% |
| Milestone 5 | Mainnet launch Multisig mainnet deployment and contract verification. | 15% |
| Milestone 6 | Handover Monitoring, runbooks, training and documentation handed over. | 15% |
| Total | 100% | |
- Number of milestones and splits set around your scope
- Every milestone is a working, demonstrated result
- No payment is due until you sign off
Warranty & annual support
Protected after launch — warranty and annual support for your Wallet Development project in Haiphong, Vietnam
Go-live is where your wallet development product starts earning — so we stay accountable for it. Every project includes a free 90-day defect warranty. After that, the same team that built it keeps it secure, updated and running in Haiphong business hours on a fixed annual fee agreed up front — no open-ended hourly billing, no surprise invoices.
Included free
90-day warranty
Any defect found in the first 90 days after go-live is fixed free of charge.
- Every delivered feature covered
- Fixes tested and deployed to production
- Same engineers who built it
Fixed-cost annual package
30% of project cost
per year for Annual Support & Maintenance, with a dedicated developer assigned to your wallet development platform. A fixed price, known in advance.
| Service | Included in the annual package |
|---|---|
| Dedicated developer | One named developer assigned to your product for fixes, enhancements and optimisation. |
| Bug fixes & security patches | Critical issues resolved within 24 hours; standard issues within 5 business days. |
| Upgrades & new releases | Framework, library and platform updates plus new versions of what we built, at no additional cost. |
| Helpdesk | Email and phone support for your team and administrators; 4-hour response for critical issues. |
| Backup monitoring | Daily backup checks and a quarterly restore test. |
| Security review | Periodic audit-trail review and security configuration check. |
| On-chain monitoring | Contract events, admin actions and unusual transactions watched with alerts. |
| Network & node upgrades | Hard forks, RPC and library changes tracked; contract upgrades run through the multisig. |
| Key & signing health | Signing nodes, key shares and policy engines checked every month. |
| Haiphong business-hours coverage | Helpdesk, calls and planned maintenance scheduled around Haiphong business hours (UTC+7); critical issues escalated immediately. |
| Local compliance updates | Changes to the Personal Data Protection Law (effective 2026) and Decree 13/2023 and State Bank of Vietnam guidance tracked and reflected in the product. |
Source code & IP ownership
100% of the source code and IP is owned by you
For every custom wallet development project in Haiphong, Vietnam, upon full and final payment the complete source code and intellectual property are transferred to you — so you can host, maintain and enhance the system with any developer.
- Smart-contract source, tests and deployment scripts
- Contract ownership and multisig admin keys transferred to you
- Audit reports and dApp / admin source code
- Complete Git repository with full commit history
- Database schemas, migrations and seed data
- Configuration, CI/CD and deployment scripts
- API documentation and a deployment guide
No lock-in
No forced upgrades
No subscription trap
Your code lives in your own repository from the first commit.
Continuous enhancement
Launch is just the beginning — keep shipping with your own dedicated team
Your wallet development platform should get better every month, not stand still after go-live. Start with one dedicated developer working on your priorities across apps, dashboards and backend — and grow to a full team of developers and support members whenever your roadmap demands it.
Dedicated team, your way
From one developer to a full team
Pricing is based on the team members you need — tell us your requirements and we will quote your team.
- Start any time after launch
- Hire developers as you need them
- Scale up, scale down or pause
What your team can take on after launch
- New chains, tokens and staking features
- Approval policies and whitelists for treasury teams
- Swap, bridge and on-ramp integrations
- New contracts, tokens or chains
- dApp and admin-panel improvements
- New wallet, bridge and exchange integrations
Need more hands? Add developers and support members as your requirements grow
Start with one person and add only the roles your wallet development roadmap needs — each is quoted to your requirements.
Development team
Wallet & custody engineer
Extends MPC, multisig and key-management flows.
Smart-contract developer
Writes, tests and upgrades contracts in Solidity or Rust.
dApp developer
Builds the wallet-connected web interfaces for your contracts.
Backend developer
Adds the APIs, business logic and data models behind new features.
QA engineer
Writes and runs manual and automated tests before every release.
DevOps engineer
Keeps pipelines, environments and deployments fast and reliable.
Support team
L1 helpdesk support executive
First contact for your users and staff — logs, triages and resolves common issues.
L2 technical support engineer
Investigates bugs, data issues and integrations, and escalates to developers with full context.
On-chain operations support
Watches contracts, gas balances and admin transactions.
Wallet & transaction support
Helps users trace stuck, failed or mis-sent transactions.
Our Approach
Our approach to development methodologies
Our approach to custom software engineering draws on a range of methodologies, each selected to match the needs of your wallet development project and your team in Haiphong, Vietnam.
Agile Scrum
Best for: Evolving products
Two-week sprints with a working demo at the end of each, so wallet development priorities can change as you learn from users.
Kanban
Best for: Continuous delivery & support
A visual flow of small tasks with work-in-progress limits — ideal for maintenance, integrations and post-launch improvements.
Fixed-scope (Waterfall-style)
Best for: Well-specified builds
Requirements signed off up front with a fixed timeline and price — best when scope is clear and change is unlikely.
Lean MVP
Best for: New ventures
Build the smallest wallet development release that proves demand, measure it with real users, then invest where the data points.
DevOps & CI/CD
Best for: Every project
Automated tests, infrastructure-as-code and push-button deployments so releases are frequent, reversible and boring.
Security-by-design (DevSecOps)
Best for: Regulated & high-value systems
Threat modelling, dependency scanning and code review built into each sprint rather than a pen test at the end.
Why we're different
What sets Hurain Technologies apart for Vietnam businesses
Plenty of agencies can build wallet development. Here is what sets us apart for clients in Haiphong, Vietnam.
Engineering depth, not a reseller
Your wallet development project is designed and built by our own in-house engineers — no hidden subcontracting chain between you and the people writing code.
Built for Vietnam, not copied from elsewhere
Payments, tax, language and data-protection requirements for Vietnam are part of the design from day one instead of retrofitted after launch.
Transparent, senior-led delivery
A named project lead, a shared backlog, fortnightly demos and direct Slack access to the engineers — you always know what is being built and why.
Cost advantage without cutting corners
Delivering from India gives clients in Haiphong, Vietnam senior engineering at a fraction of typical onshore agency rates, with the same code-review, testing and security standards.
You own everything
Source code lives in your repository from the first commit; IP, infrastructure accounts and documentation transfer to you in full.
We stay after launch
Monitoring, updates and a support SLA mean the team that built your product is the team that keeps it running.
Flexible engagement models
How we work with businesses in Haiphong, Vietnam
Ways to work together, depending on how your team and roadmap are set up.
Dedicated Development Team
An extended team of wallet development engineers, QA and architects working exclusively on your product, managed day-to-day by you with our engineering leadership behind them.
Best for: Long-term products and evolving roadmaps
Fixed-Cost Delivery
A clearly scoped wallet development build with a defined timeline and price — ideal for a well-specified MVP, integration or launch product.
Best for: MVPs and clearly defined projects
Hybrid Engagement
Keep product and regulatory decisions close to your Vietnam team while our specialists handle deep engineering remotely, with workshops or on-site visits at key milestones.
Best for: Enterprises and regulated businesses
Why businesses choose us
Why businesses choose Hurain Technologies
16+ years of engineering depth
Custom software engineering with in-house teams across web, mobile, cloud, AI, payments and blockchain.
Security-first by default
Encryption, least-privilege access, audit logs — and MPC/HSM custody and audited smart contracts where money is on-chain — designed in, not retrofitted.
Regulatory-aware architecture
Designed with Vietnam's regulatory direction in mind and built alongside your licensed local legal counsel.
Direct access, no layers
Direct Slack or Teams access to your development team during the build, and the same people for post-launch support.
Business benefits
What you gain in Vietnam
Faster time to market
An experienced wallet development team with proven components means your first release ships in weeks, not quarters.
Security-first architecture
Secure from day one, rather than patched after an audit or incident.
Aligned compliance groundwork
Controls, logs and data handling built around Vietnam's requirements so reviews go faster.
Lower total cost of ownership
Clean, documented, tested code that your own team can maintain — plus post-launch monitoring and support.
What happens next
From your wallet development enquiry to a working demo in Haiphong, Vietnam — in about a day
- 01Within 10 minutes
We respond to your enquiry
Send your wallet development enquiry by form, email or WhatsApp — a few lines is enough. Our team replies within 10 minutes, any day, any time, to set up a meeting at a time that suits you in Haiphong.
- 02Requirements meeting
We understand your requirements
In a focused meeting we go deep on your users, features, integrations, timeline and budget, plus the payment, tax and compliance rules that apply in Haiphong, Vietnam — so we build exactly what your business needs. NDAs signed on request.
- 03Within 24 hours
You see a demo of your wallet development
Within 24 hours of our meeting we prepare and share a demo — so you see your wallet development taking shape before you commit to anything.
- 04As per your budget
We share a tailored proposal
A clear proposal for your wallet development project in Haiphong, Vietnam with scope, milestones, team and timeline — shaped around your budget, with no hidden costs and no obligation.
Available 24×7 — three 8-hour shifts, every day
FAQ
Wallet Development in Haiphong — FAQ
Do you work with wallet development clients in Haiphong?
Which currency and taxes apply to projects in Vietnam?
How quickly can you start a project in Haiphong?
Which wallet development company can build this for my business in Haiphong?
How do I choose the best wallet development company in Haiphong?
Can I outsource wallet development for Haiphong to an offshore team in India?
Do you build the complete wallet development solution, or only integrate with what we already use?
We are not sure about our budget yet. Can you still help?
Do you provide dedicated development teams for companies in Haiphong?
What industries in Haiphong do you serve?
Can you build a crypto exchange for the Vietnamese market?
Do you integrate with Vietnamese e-wallets and QR payment rails?
What's the difference between custodial and non-custodial wallets?
Which blockchains can the wallet support?
Can the wallet include staking or in-app swaps?
How long does it take to build an MVP wallet?
Wallet Development in other Vietnam cities
Live Demos
A selection of platforms we've designed and built
Real, working builds across fintech, compliance, healthcare, and commerce — the same engineering team would build your wallet development project for Haiphong, Vietnam.
Nexa
SaaS-style product dashboard and workflow UI for a fintech platform.
Open live demoDebt Management
Debt management and collections tracking platform.
Open live demoUMARSOB Data
Android VTU/data-reseller platform with wallet, agent/referral system, and admin panel.
Open live demoAML Compliance Suite
Anti-money-laundering compliance and case-monitoring suite.
Open live demoHospital Management
Hospital/clinic management system covering patient records, appointments, staff, and billing.
Open live demoDMI CHW App
Offline-first Community Health Worker counseling app with a central management platform, built for an NGO client.
Open live demoHomemakers Pro
Enterprise operations system for a domestic staffing agency covering bookings, staff, and client management.
Open live demoE-Commerce (Multi-Locale)
E-commerce storefront demo with multi-language, locale-based support.
Open live demoMars
Legal web application prototype.
Open live demoReady to bring cryptocurrency wallet development to Haiphong?
Get a response within 10 minutes, a demo within 24 hours of our meeting, and a proposal as per your budget.