01
Technical Specification
Full system requirements, user flow documentation, entity relationship diagrams, and API contracts produced before development begins.
Enterprise Web Application Development · Singapore
Enterprise web application development
Namtech Pte Ltd, a Singapore AI transformation consultancy, builds custom web applications (internal systems, client portals and multi-tenant SaaS platforms) from SGD 18,000, delivered in 12–32 weeks. Every build includes role-based access control, a documented API, a security audit and full source code ownership.
Starting investment
SGD 18,000
Fixed scope, excl. GST
Delivery timeline
12–32 weeks
Milestone-governed
Engagement model
Fixed-scope
No open iteration
The problem
Why custom systems fail to deliver
Custom software projects usually fail because of process rather than technology: absent governance, undefined scope and misaligned expectations set up cost overruns before any code is written. These are the five gaps we design out.
A system that works in demo is not the same as one that scales.
- 01
Scope ambiguity at project start
Projects initiated without formal specifications, agreed user flows, or documented acceptance criteria routinely deliver systems that do not match business requirements.
- 02
Weak architectural foundations
Internal tools and platforms built by generalist developers or on unsuitable frameworks create technical debt that prevents scaling beyond initial workload.
- 03
No structured change control
Custom development without a formal change request process results in endless iteration, missed deadlines, and invoices that bear no relation to original estimates.
- 04
Security and compliance gaps
Applications built without security architecture, access controls, or audit trails create regulatory exposure and operational vulnerability that compounds over time.
- 05
No ownership or documentation handover
Systems delivered without source code ownership, technical documentation, or internal admin capability create permanent vendor dependency.
Delivery framework
Four-phase application delivery
Every web application moves through four milestone-gated phases: discovery, UX architecture, sprint-based development, and testing and deployment. Scope is locked before development begins, and no phase starts without written client approval.
Phase 01
Strategic Discovery
Requirements, architecture & technical specification
Formal requirements gathering with documented user flows, system boundaries, integration points, and acceptance criteria. Architecture review board sign-off before any development commences.
Phase 02
UX Architecture
Information architecture, wireframes & design system
Structured UX design beginning with information architecture and low-fidelity wireframes. Design system definition, component library, and high-fidelity screens signed off before development.
Phase 03
Structured Development
Sprint-based build with milestone approvals
Development executed in defined 2-week sprints with client review at each milestone. No scope additions without formal change requests. Weekly progress reporting with documented completion status.
Phase 04
Testing & Deployment
QA, security audit, UAT & production release
Structured QA across all defined acceptance criteria. Security audit and penetration testing. UAT sign-off required before production deployment. Full technical documentation and source code handover.
Written client approval required before each phase commences.
Phase weeks are indicative for a typical project. Committed package timelines: Structured Internal System 12–24 weeks, Enterprise / SaaS Platform 16–32 weeks.
What's included
Every package includes
Both web application packages include the same eight deliverables as standard, from technical specification to source code handover.
02
UX Design System
Custom component library, responsive design across all target devices, and approved high-fidelity screens for all user-facing interfaces.
03
Backend Architecture
Scalable server infrastructure, RESTful or GraphQL API design, database schema, and third-party integration layer.
04
Security Architecture
Role-based access control, encrypted data storage, secure session management, audit logging, and OWASP compliance review.
05
Integration Layer
ERP, CRM, payment gateway, or third-party API integrations within the agreed integration scope.
06
QA & Testing
Automated and manual testing across all defined user flows, cross-browser compatibility, and load testing for defined concurrent user targets.
07
Source Code & IP Handover
Full source code ownership transferred to client upon final payment. No vendor lock-in. Complete repository access and deployment documentation.
08
Admin Training & Documentation
Role-based administrator training, technical handover documentation, and user manuals for all defined system roles.
Engagement governance
How we govern your build
Custom development is prone to scope expansion, timeline drift and cost disputes. Each engagement runs under six written controls that prevent them.
Defined Feature Scope
All application features are documented, agreed, and signed off before development begins. No feature is built without written specification and client approval.
Formal Change Request Process
Any addition or modification outside agreed scope is formally documented with cost and timeline impact before execution.
No Open-Ended Iteration
Development cycles are time-boxed within defined sprints. Revision cycles per phase are defined in the engagement agreement.
Secure Architecture Standards
All applications are built to OWASP standards with defined security controls. Security is designed in, not patched on.
IP and Source Code Protection
Client retains full IP ownership of all custom-developed code. Namtech retains no licence over deliverables after final payment.
Milestone Payment Structure
70% at project commencement, 30% upon production deployment and UAT sign-off. No payment milestones tied to subjective criteria.
Engagement packages
Fixed-scope web application packages
Namtech offers two web application packages: Structured Internal System (up to 500 active users, SGD 18,000, 12–24 weeks) and Enterprise / SaaS Platform (multi-tenant, from SGD 35,000, 16–32 weeks). Prices are in SGD excluding GST.
Structured Internal System · Tier 1
For businesses requiring internal operational tools, employee portals, workflow automation systems, or customer-facing applications with defined user flows.
SGD18,000
12–24 weeks · Up to 500 active users
- Role-based user authentication
- Up to 10 defined application modules
- RESTful API with documented endpoints
- PostgreSQL or MySQL database
- Admin dashboard & reporting
- 2 third-party integrations
- Automated test suite
- 2 weeks post-launch support
Terms Fixed investment · No hidden costs · 70% upfront · 30% on UAT sign-off
Not included Multi-tenant / SaaS architecture
Enterprise / SaaS Platform · Tier 2
For growth-stage companies and SaaS founders building multi-tenant platforms, client-facing portals, or enterprise systems requiring advanced architecture.
fromSGD35,000
16–32 weeks · Unlimited tenants
- All Tier 1 inclusions
- Multi-tenant SaaS architecture
- Up to 20 defined application modules
- Advanced RBAC & permission system
- API gateway & webhook infrastructure
- Up to 5 third-party integrations
- Performance & load testing
- 4 weeks post-launch support
Terms Starting investment · Scope locked at start · 70% upfront · 30% on production deployment
Custom scope Beyond 20 modules quoted separately after discovery.
Package comparison
| Item | Structured Internal System | Enterprise / SaaS Platform |
|---|---|---|
| Investment | SGD 18,000 | From SGD 35,000 |
| Timeline | 12–24 weeks | 16–32 weeks |
| Users | Up to 500 active users | Unlimited tenants |
| Application modules | Up to 10 | Up to 20 |
| Multi-tenant SaaS architecture | Not included | Included |
| Third-party integrations | 2 | Up to 5 |
| Post-launch support | 2 weeks | 4 weeks |
| Payment | 70% upfront · 30% on UAT sign-off | 70% upfront · 30% on production deployment |
All engagements subject to a scoping call prior to proposal. Module scope beyond package limits quoted separately. Pricing in SGD excluding GST.
Why Namtech
Why Singapore enterprises choose Namtech
Six working commitments that apply to every Namtech web application project.
Singapore Technical Oversight
Projects are managed and technically overseen from Singapore, with a named project lead, direct communication and no offshore handoffs without client disclosure.
ERP & Commerce Integration Experience
Namtech also delivers ERP implementations and e-commerce builds, which helps when a new system must integrate with your existing business infrastructure.
Secure-by-Design Architecture
Access controls, encryption and audit logging are defined in the technical specification before development starts.
Sprint Governance Framework
Development runs in 2-week sprints with client review at each milestone and weekly progress reporting.
Fixed-Price Discipline
Engagements are fixed-scope and fixed-cost; changes go through a written change request with cost and timeline impact.
Full Source Code Ownership
Clients own all custom-developed code after final payment, with full repository access and deployment documentation, with no proprietary frameworks that require Namtech licensing.
FAQ
Questions buyers ask
How much does custom web application development cost in Singapore?
Structured Internal System is SGD 18,000 for up to 10 modules and 500 active users. Enterprise / SaaS Platform starts from SGD 35,000 for multi-tenant architecture and up to 20 modules. Prices are in SGD excluding GST.
How long does it take to build a web application?
Structured Internal System takes 12–24 weeks and Enterprise / SaaS Platform takes 16–32 weeks. Development runs in 2-week sprints with client review at each milestone.
Do we own the source code?
Yes. Full source code ownership transfers to you on final payment, with complete repository access and deployment documentation. Namtech retains no licence over deliverables.
Can you build a multi-tenant SaaS platform?
Yes. Multi-tenant SaaS architecture is included in the Enterprise / SaaS Platform package, together with advanced RBAC, an API gateway and webhook infrastructure, and up to 5 third-party integrations. It is not included in Structured Internal System.
How are payments structured?
Payment is 70% at project commencement. The remaining 30% is due on UAT sign-off for Structured Internal System, and on production deployment for Enterprise / SaaS Platform.
Technical architecture consultation
Engineer your digital infrastructure the right way.
Book a 30-minute technical consultation. We assess your system requirements and send a fixed-scope proposal within 3 business days. No obligation.