The Ho Chi Minh City Metropolitan Railway Management Board (MAUR) engaged TechTack to build its official tender information portal — a secure, bilingual platform that takes contractor market sounding and expressions of interest online for HCMC's urban-rail programme, built to Vietnam's 2025 contractor-selection law and connected to the national e-procurement system.
Ho Chi Minh City is building out one of Vietnam's largest urban-rail networks — and the authority behind it, MAUR, set a clear tone for how contractors should be engaged: transparency, fairness, and modern procurement, in its own words.
MAUR commits to transparency, fairness, and modernizing all procurement processes — so the portal had to make that commitment visible, not just stated.
The brief: take contractor engagement online, bilingually and securely, fully aligned to Vietnam's 2025 contractor-selection law — and connect cleanly to the national e-procurement system so the process is consistent end to end.
The challenge
To select contractors for its urban-rail packages — including through direct appointment under Resolution 188/2025/QH15 and market consultation under Decree 214/2025/ND-CP — MAUR needed an official, public channel to reach the market and capture contractor capabilities in the open.
That meant three things at once. The portal had to mirror a brand-new 2025 legal framework; it had to serve both Vietnamese and international contractors, so language couldn't be an afterthought; and because this is public procurement involving personal and corporate data, every interaction had to be secure and auditable by design.
Two contractor engagement flows
The portal puts two regulated processes online, each anchored to its legal basis.
Participate in Market Sounding
Lets consulting parties conduct market consultations for HCMC's urban-rail projects — helping MAUR shape contractor-selection planning and requirement documents before procurement.
Receiving Expressions of Interest
Lets potential contractors search project information and submit their capability and experience, so MAUR can review potential-contractor lists for selection by direct appointment.
How we delivered it
A regulated, public-sector build, run end to end: from secure data capture to a production system MAUR can operate with confidence.
- 1
Architected security and consent into the core
Authenticated access, controlled submission workflows, and an explicit letter of consent for processing personal data — aligned with Vietnam's data-protection rules and designed in from the start, so contractor information is handled correctly at every step.
- 2
Anchored every flow to its legal basis
Market sounding and expressions of interest each map directly to Resolution 188/2025/QH15 and Decree 214/2025/ND-CP, so the platform enforces the precise procurement rules it serves and stays auditable against the law as written.
- 3
Built bilingual content as a first-class system
Vietnamese and English run as parallel, equally authoritative content — so a local reviewer and an international contractor work from the exact same source of truth, with nothing lost between languages.
- 4
Wired it to the national procurement system
Direct-appointment flows live on the portal; other selection methods route to muasamcong.mpi.gov.vn. We designed the journeys so contractors always know which channel applies and stay informed across both.
- 5
Engineered it to run in production
Containerised with Docker and orchestrated on Kubernetes over AWS, with Grafana for observability and GitHub-based CI/CD for safe, reviewable releases — a stack chosen so the portal stays available, monitored, and maintainable long after go-live.
The result
MAUR now runs an official, live portal — tenders.hochiminhmetro.vn — that brings market sounding and expressions of interest online for Ho Chi Minh City's urban-rail programme. Contractors, including international ones, engage through a secure, bilingual, legally grounded channel that carries the authority's official identity and connects to the national procurement system.
A stated commitment to transparency and fairness became a working public platform contractors can actually use — the difference between digitising a process and earning trust.
Curious what a build like this costs? See our guide on how much custom software costs in Vietnam, or tell us what you're building.
Technology stack
A representative view of the tooling behind a secure, bilingual government platform.
PostgreSQL 
Docker 
Kubernetes 
AWS 
Grafana 
GitHub Frequently Asked Questions
What is the MAUR Tender Information Portal?
It's the official online portal of the Ho Chi Minh City Metropolitan Railway Management Board, where the authority conducts market sounding and receives expressions of interest from contractors for HCMC's urban-rail projects. It runs bilingually in Vietnamese and English at tenders.hochiminhmetro.vn.
What legal framework does the portal operate under?
Its contractor-selection flows are grounded in Resolution 188/2025/QH15 (issued by the National Assembly on 19 February 2025), which enables direct appointment for urban-rail projects, and market consultation under Clause 3, Article 17 of Decree 214/2025/ND-CP.
How does the portal relate to Vietnam's national e-procurement system?
The MAUR portal handles direct-appointment selection and the market-sounding that precedes it. Tenders conducted through other selection methods run on the Vietnam National E-Procurement System (muasamcong.mpi.gov.vn). Contractors registered on the MAUR portal are kept informed about those packages as well.
Can TechTack build secure government and public-sector portals?
Yes. The MAUR portal — and a similar tender portal for Hanoi Urban Railway (MRB) — are live examples of TechTack delivering secure, bilingual, compliance-grounded systems for public authorities, with authentication and data protection handled by design.
