ER Freelancer

Freelance AI Website Developer in Hanoi

Freelance AI website developer for Hanoi, Vietnam: websites with built-in AI assistants and automation. Planned for Vietnam's PDP Law and local payments.

Overview

Websites and web apps with practical AI built in — chat assistants trained on your content, smart search, lead qualification and content workflows — with guardrails and cost control. Projects for Hanoi run remotely, with about 6.5 hours of overlap with a 9-to-6 working day. Scope, milestones and ownership are agreed in writing before work starts.

Vietnam-specific requirements to plan for

Projects for businesses in Hanoi have to work for local customers and local rules. These points are planned from the first milestone:

  • Personal Data Protection Law (No. 91/2025/QH15) and Decree 356/2025, both effective 1 January 2026: Consent and impact assessments are required, and some cross-border transfers must be documented.
  • Interface and content languages: Vietnamese and English.
  • Vietnamese diacritics need full font support for readability and SEO.

Source: Government Legal Documents Portal — Law No. 91/2025/QH15 on Personal Data Protection

This is practical delivery guidance, not legal advice.

Typical AI website developer projects for businesses in Hanoi

Vietnam’s capital, with government, education, IT services and fast-growing consumer brands.

  • Public sector & institutions: an accessible, multilingual information portal.
  • IT & software services: a lead-generating services site with case studies and a technical blog.
  • Education & training: an institute site with course pages, fees and admission enquiries.
  • Retail & D2C brands: a conversion-focused online store with local payment methods.

Working hours: India ↔ Hanoi

Hanoi is on UTC+7. IST is 1 h 30 min behind. That leaves roughly 6.5 hours of overlap with a 9-to-6 working day. A daily call at 09:30–12:30 your time (08:00–11:00 IST) works year-round. Between calls you get written updates and a staging link that shows the latest build.

Decisions to make before work starts

Identify approved data, retrieval permissions, evaluation examples and operating costs. Plan how the interface handles uncertain answers, unavailable providers and requests needing a human response.

Deliverables to agree in your scope

  • Modern web application interface with native AI interactive patterns
  • Server-side LLM orchestration with streaming responses and guardrails
  • RAG (Retrieval-Augmented Generation) pipeline over company knowledge base
  • Embeddings search and hybrid retrieval for catalogs or archives
  • Usage analytics, rate-limiting, and API cost-capping controls
  • An AI assistant that answers from your own content
  • Lead qualification before a human gets involved
  • Clear usage limits so AI costs stay predictable

How the quote is scoped

These factors affect the work involved:

  • Vector database architecture
  • Context window & retrieval complexity
  • Evaluation & guardrail requirements

Share your budget in VND or USD. The schedule, payment milestones, external charges and support terms are agreed in writing before work starts.

Technology options and brief questions for this service are listed on the AI Website Development page.

Review and handover

Evaluate representative questions and known failure cases. Test access boundaries, source attribution where relevant, fallback behavior and usage limits before release. Source-code and asset ownership, licences, account access and ongoing support are set out in the project terms.

Can I hire a freelance AI website developer for a project in Hanoi?

Yes. Share your goals, timeline and budget and you receive clarifying questions or a scoped, milestone-based proposal. Work runs remotely, with written updates and a staging link you can review at any time.

How much does a freelance AI website developer cost in Hanoi?

It depends on vector database architecture, context window & retrieval complexity and evaluation & guardrail requirements. There are no fixed packages: share your budget in VND or USD and receive an itemised, milestone-based proposal.

How long does an AI website project take?

The service catalog lists a typical range of 18 - 40 days; the real plan depends on scope, integrations and content readiness.

Will the project follow Vietnam's PDP Law in Vietnam?

The build is planned around the Personal Data Protection Law (No. 91/2025/QH15) and Decree 356/2025, both effective 1 January 2026: consent capture on forms, a clear privacy notice, data minimisation and suitable hosting. Consent and impact assessments are required, and some cross-border transfers must be documented. Final legal wording should be checked by your legal adviser. Official reference: https://vanban.chinhphu.vn/?pageid=27160&docid=214590&classid=1&typegroupid=3

What does a typical project for public sector & institutions in Hanoi look like?

Usually an accessible, multilingual information portal. The exact scope follows your customers, existing systems and budget, and is agreed in writing before work starts.

Which time zone will the project run in for Hanoi?

Calls run 09:30–12:30 your time (08:00–11:00 IST); everything else is asynchronous, with written updates.

Other services in Hanoi

AI Website Development in nearby locations

Raji

Founder & freelance developer

Rajeev, known as Raji, is the founder of ER Freelancer. Work directly with him on websites, applications and business software, with remote collaboration available worldwide.

Based in India · available remotely

Available for remote projects worldwide

Languages: English, Hindi