Data Center & Digital Infrastructure
Consulting, deployment and management of data centers and IT infrastructure that is stable, secure and high-performing - a solid foundation for any digital journey.
Digital Transformation & Marketing Expert - Founder of SofiPOS
Phan Duy
Digital Transformation & Marketing Expert for Businesses in Vietnam
15+ years of hands-on experience helping hundreds of companies and household businesses in Vietnam digitize their operations, streamline workflows and comply with Vietnam's e-transaction regulations.
15+Years of experience
500+Businesses served
12Digital solutions
4Marketing channels
15+
Years of hands-on experience
Real-world rollouts at hundreds of companies and household businesses
500+
Clients supported
From SMEs to small household businesses across Vietnam
12
Digital transformation solutions
From digital signatures, e-invoices and e-contracts to cybersecurity and APIs
Expertise
8 Areas of Deep Expertise
End-to-end solutions - from digital infrastructure, finance, HR and sales operations to marketing - covering the full cycle of running and growing a business.
Digital Signatures, HSM & Remote Signing
Advanced e-authentication (digital signatures, HSM, remote signing, timestamping) with strong security aligned to international standards and Vietnamese law.
E-Invoicing
E-invoice consulting and rollout under Decree 254/2026/ND-CP (effective 1 July 2026), with automatic integration into your existing management software.
Electronic Social Insurance
Moving the entire social insurance declaration and payment process onto digital platforms - saving time and reducing errors.
E-Contracts
Secure, legally valid e-contract signing - eliminating paperwork, lowering costs and speeding up every deal.
HRM Software
End-to-end HRM rollout: automated recruiting, time tracking, payroll and performance reviews.
POS for Household Businesses
Building and deploying POS solutions for spas, nail salons, hair salons, grocery stores and restaurants, with automatic household-business tax calculation and seamless e-invoice connection.
Marketing & AI Content
AI content strategy (ChatGPT/Claude/Gemini), SEO case studies that drive real orders, Google Analytics/Search Console/Business Profile optimization, content production with Canva/CapCut/Filmora, email marketing and AI-generated brand music with Suno.
Projects
12 Digital Solutions for Businesses in Vietnam
Independent advice and rollout of services from government-licensed providers: digital signatures, e-invoicing, e-contracts, T-VAN tax filing, I-VAN social insurance... Each solution links to the official public-service portal so you can verify licensed providers yourself.
Not tied to a single provider
I compare packages, prices and support levels across licensed providers, pick the best fit for your size and existing software - then handle rollout, renewals and troubleshooting with you.
Digital Signature
USB-token digital certificates for companies, household businesses and individuals - used for tax filing, social insurance submissions and signing e-invoices and e-contracts. Package advice and on-time renewal support.
Remote Signing
Sign from anywhere: private keys are kept securely in an HSM at the data center, so users sign on their phone or computer without plugging in a USB token. Ideal for mobile and multi-site teams.
TSA - Timestamping
A Timestamping Authority service that certifies the exact moment of signing, so digital signatures stay legally valid and verifiable even after the certificate has expired.
E-Invoicing
E-invoice rollout under Decree 254/2026/ND-CP (effective 1 July 2026): registration, issuance, error handling and integration with the sales and accounting software you already use.
E-Contracts
Draft, send and sign contracts fully online with digital signatures and central storage - cutting contract turnaround from days to minutes.
Accounting Software
Accounting software for SMEs and household businesses, linked to e-invoicing to automate bookkeeping, financial statements and tax returns.
E-Vouchers & E-Receipts
Issue personal income tax withholding certificates and e-receipts instead of paper - sent straight to recipients, easy to look up and archive.
TVAN - Tax Filing
A T-VAN e-data transmission service for filing tax returns and receiving tax authority notices quickly and reliably - even on peak deadline days.
Social Insurance IVAN
File social, health and unemployment insurance dossiers electronically via I-VAN: report headcount changes, adjust contribution levels and track processing results in one place.
Cybersecurity
Malware protection, monitoring and network defense that shield your business from attacks, ransomware and data leaks.
Information Security
Assessments, processes and policies that protect customer data and personal data in line with current Vietnamese regulations.
Integration API
Connect e-invoicing, digital signatures and e-contracts to your ERP, POS or online store via API - data flows automatically, with no double entry.
Websites & campaigns I run
A selection of digital transformation and marketing projects I have built and operate myself.
sofipos.com.vn
A Business Operating System (BOS) for SMEs and household businesses in Vietnam and ASEAN. Content SEO, bilingual VI/EN site and a complete product ecosystem.
chayhoavouu.com
Website for a vegetarian restaurant in Tan Phu, Ho Chi Minh City. Local SEO, area landing pages, the "Vô ฦฏu Bút" blog and Google Ads campaigns.
Media F&B Vegan
Multi-channel content for plant-based F&B: TikTok, Facebook Page, YouTube and Zalo OA, paired with brand music created with Suno AI.
Recognized expertise
Specialist training in digital transformation and official membership of a tax professional body - the basis for accurate, up-to-date advice.
Building Digital Transformation Roadmaps: Overview of the Digital Transformation Design Framework in Enterprises
Certificate โ Short course certificate of completion
- Date issued:
- January 2025
- Issued by:
- RMIT University - The Business School
Official member of the Ho Chi Minh City Tax Consultants and Agents Association (HTCAA)
Membership โ Decision No. 250/2024/QDHV-HTCAA
- Date issued:
- 15 April 2024
- Issued by:
- HTCAA, Ho Chi Minh City
Professional associations
Tax and accounting association news in Vietnam
Connected with and following Vietnam's leading tax and accounting professional associations.
Ho Chi Minh City Tax Consultants and Agents Association
Professional body for tax consultants and tax agents in Ho Chi Minh City - a bridge between the tax authority and taxpayers.
Vietnam Association of Accountants and Auditors
National professional body for accounting and auditing: training, continuing education, standards and policy feedback.
Vietnam practising accountants association (VICA)
Network for practising accountants: continuing education, practising-certificate exam preparation and chief accountant courses.
Ho Chi Minh City Accounting Association
Founded in 1994 with over 1,000 members in 29 branches: chief accountant training, member forums and policy updates.
Blog
Latest articles
Vietnam Social Insurance: How to Sync Employees and Activate Your New Unit Code on the Public Service Portal
The new ฤD + ฤT + LH unit code under Letter 1804/BHXH-QLT and 4 steps to register and sync employees on Vietnam's social insurance portal.
12 Reputable Business Clubs for Entrepreneurs in Vietnam
BNI, YBA HCM, VYEA, VCCI, EO, YPO, HAWEE, ActionLEADERS, AmCham... A comparison table, how to choose by goal and 6 checks before paying dues.
NEAC, SAWACO and Public CAs Promote Digital Signatures for Online Services in Vietnam
8 public CAs agreed in principle on free personal certificates for SAWACO customers; outreach in 97 wards and communes in Q4 2026.
Mission & Product
Practical, Cost-effective, Results-driven Digital Transformation
โTo help businesses and household businesses in Vietnam go digital in the most practical, affordable and effective way - and compete with confidence in the digital era.โ
After more than 15 years in the field, I know that digital transformation is not about buying expensive software. It is a journey of changing each process and each operation, matched to the real capacity and resources of every organization.
SofiPOS โ Founded product
Sales management software designed specifically for Vietnamese household businesses, letting shop owners run everything from a single platform.
- Real-time revenue & inventory management
- Automatic VAT + personal income tax calculation
- Seamless e-invoice issuance
- Built for spas, nail & hair salons, grocery stores, restaurantsโฆ
- Simple interface, productive from day one
Book a consultation
Let's start your digital journey
Whether you are an SME, a household business or a foreign company operating in Vietnam, I am ready to advise on what fits your real situation.
- Phone / Zalo0818 426 262
- Websitekhuetugiaiphapmobi.com
- CoverageNationwide in Vietnam - online worldwide
- LanguagesVietnamese & English