Software developers for Vietnamese businesses ERP, portals, operations systems and SaaS from India.

SpikeSecure Technologies Pvt. Ltd., a software development company in Coimbatore, India, builds custom software for businesses in Vietnam: manufacturing ERP, quality and dealer portals, operations systems that replace spreadsheets, CRM, booking and billing systems and multi-tenant SaaS, in Vietnamese and English, with e-invoices through a licensed provider, VNPay or MoMo payments and hosting in Singapore or a Vietnamese cloud in accounts you own, invoiced in USD from our published Indian ranges.

Two engagement models are offered: a fixed-scope project with price and dates fixed in a written proposal, or a dedicated team of named developers working your afternoon month to month. Both run under a mutual NDA with a six-hour daily overlap, weekly demos and code in your repositories. We have no Vietnam office or staff; the difference from a Ho Chi Minh City software house is cost structure and the time-zone shape, not the engineering.

• Typical budget: ₹6–15 lakh for a custom business application with several roles, workflows, integrations and reports, within our published ₹3–25 lakh range.
• Where the team is: Coimbatore, Tamil Nadu, India; ICT (UTC+7). No office in Vietnam; delivery and support are remote, with a 11:00–17:00 ICT live overlap.
• Who it is for: manufacturers and exporters in the industrial parks around Ho Chi Minh City, Hanoi and Hai Phong, F&B chains, logistics companies, real estate developers, schools and clinics, and SaaS founders building for Vietnam and Southeast Asia.
• Localised for: Vietnamese first with full diacritics, English as the second language; USD invoicing with local amounts shown as indicative conversions; VNPay, MoMo, ZaloPay, ShopeePay, Napas cards and VietQR; Zalo and WhatsApp notifications; 10% VAT with mandatory e-invoices connected to the tax authority.
• Indicative cost: custom software and web applications ₹3–25 lakh per project, dedicated developers quoted per month by role on our published Indian pricing, roughly USD 3,500–29,000 (about VND 87–725 million) at the time of writing (October 2026), confirmed in a fixed-scope proposal.
• Hosting and data: AWS or Google Cloud Singapore, or Viettel IDC, VNPT Cloud or FPT Cloud where data residency is required, in accounts you own; designed for Decree 13/2023 on personal data protection and the Personal Data Protection Law that follows it, plus the Cybersecurity Law's localisation duties.
• Start: Book a discovery call; written proposal within 48 hours; mutual NDA before discovery.
• Related: software development company page, web application development, hire developers in India, website development for Vietnam, mobile app development for Vietnam, social media app development for Vietnam, Vietnam hub, AEO specialist, short drama apps for Vietnam, resort booking apps for Vietnam, international clients

Who looks for software developers in Vietnam

Foreign-owned and Vietnamese manufacturers in Binh Duong, Dong Nai, Bac Ninh and Hai Phong that need production, inventory, quality and dealer systems; F&B groups with central kitchen and franchise operations; logistics companies with dispatch and warehouse tooling; property developers with sales and handover systems; and founders building SaaS for Vietnam's SMEs from Ho Chi Minh City and Hanoi.

What a Vietnamese build adds

Vietnamese-first interfaces with English, VND accounting with 10% VAT and mandatory e-invoices issued through a licensed provider such as Viettel, VNPT or MISA meInvoice, MISA, Fast or Bravo accounting integration (Xero or QuickBooks for foreign-owned companies), VNPay or MoMo payments, Zalo notifications, and schedules that respect Tết and the Vietnamese working week.

Data, hosting and compliance

Decree 13/2023 and the Personal Data Protection Law govern consent, impact assessments and cross-border transfers, and the Cybersecurity Law localises data for the services it names; we implement what your counsel specifies. Systems run in AWS or Google Cloud Singapore, or in Viettel IDC, VNPT Cloud or FPT Cloud when residency is required, in your account, with infrastructure as code so a Vietnamese team can operate them without us.

• Payments. VNPay, MoMo, ZaloPay and ShopeePay wallets, Napas domestic cards and VietQR bank transfers, OnePay and Payoo gateways, Visa and Mastercard, and cash on delivery with rider reconciliation, which remains common in Vietnamese ecommerce. Set up in accounts you own, with webhooks, refunds and settlement reconciliation tested in the sandbox before go-live.
• Accounting and CRM. MISA, Fast or Bravo accounting through export or API where the vendor offers one, Xero or QuickBooks Online for foreign-owned companies, and Vietnamese e-invoices through a licensed provider such as Viettel, VNPT or MISA meInvoice as the tax rules require; Zoho CRM or HubSpot through their APIs for sales teams.
• Local channels and APIs. Vietnamese and English UI, Zalo Official Account and Zalo Notification Service for messaging alongside SMS brand-name gateways, Giao Hàng Nhanh, Giao Hàng Tiết Kiệm and Viettel Post APIs for delivery, and Google Maps for Hanoi, Ho Chi Minh City and Da Nang delivery zones; all in your accounts.
• What already runs in production. Per-minute wallets, Razorpay checkout and RazorpayX payouts, Agora audio and video, Flutter and Next.js clients and a NestJS API on AWS in Local Friends; Razorpay checkout, WhatsApp Business API follow-ups and role-based dashboards in the six published case studies. Swapping Razorpay for VNPay or MoMo is a gateway adapter and a sandbox test run, not a new architecture. No Vietnamese client is named on this site and we hold no SOC 2 or ISO 27001 certification.

SpikeSecure has one office, at CHIL SEZ IT Park, Saravanampatti, Coimbatore, India. Vietnamese clients are served remotely by that engineering team; there is no Vietnam office, entity, local staff or local phone number, and we do not claim one.

• Working hours. Vietnam is on Indochina Time (UTC+7), one and a half hours ahead of India, so our 09:30–18:30 IST day runs 11:00–20:00 in Vietnam and overlaps your working day from 11:00 to 17:00, with the common 11:30–13:30 lunch break planned around; morning requests are answered by 11:00 your time. Tết and other public holidays are written into schedules, and launch or incident coverage outside the window is arranged in the maintenance plan.
• Commercials. A written, fixed-scope proposal before work starts. Quoted and invoiced in USD through Wise or Stripe, or in INR; Vietnamese dong figures in proposals are indicative conversions and the fixed price is set in the invoicing currency. We are an Indian entity and charge no Vietnamese VAT; your accountant advises on foreign-contractor tax treatment on your side, and we do not give tax advice.
• NDA and ownership. A mutual NDA is signed before discovery. Source code lives in a GitHub organisation you own; cloud, app store, payment and domain accounts are in your name from day one; the intellectual property in the delivered work is assigned to you on final payment.
• Communication. A named project lead, a shared channel on Zalo or Slack, weekly demos on a staging URL (recorded for absent stakeholders), a written status note every Friday and GitHub access throughout.
• Hosting. AWS or Google Cloud Singapore for most workloads, or Viettel IDC, VNPT Cloud or FPT Cloud where Vietnamese data residency is required, in your accounts with your billing; encrypted Postgres, object storage and a CDN with Hanoi and Ho Chi Minh City edge locations in front.
• After launch. A 30-day warranty on every build, then optional maintenance with monthly health reports, or a documented handover to your in-house team or a Vietnamese vendor.