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OVERVIEW
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SERVICES
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MODELS
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WHY CHOOSE US ?
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OUR PROCESS
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TECHNOLOGIES
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FAQS
Built for Engineering Leaders Who Own the Roadmap
Saigon Technology is an AI-native custom software development company that has shipped 900+ production systems for 300+ clients since 2012. We're not a body shop. One senior engineer paired with our internal AI-assisted engineering tooling produces the throughput of three juniors - so you pay for fewer people, get more output, and rework less.
That model fits a specific kind of buyer: the CTO or VP of Engineering who needs custom software development services delivered on a real schedule, with senior architects who can defend software architecture decisions to your board, and embedded security and compliance controls that survive a SOC 2 audit. Our 400+ engineers work from three ISO-certified delivery centers in Vietnam, with 10-12 hours of daily overlap for US East and West Coast teams.
Full-Stack Custom Software Development Services
From discovery and architecture through production support, our custom software development services cover the full lifecycle. Each service below is a live capability staffed by senior engineers and tech leads, not a marketing line item.
Most clients start with one service and expand into custom software development solutions that span multiple disciplines - an AI feature delivered on top of an existing SaaS platform, or a legacy modernization paired with a new mobile front-end. We staff the right mix of seniors, mid-levels, and specialists for each phase, and we don't bill for ramp-up time we can't justify.
End-to-End Software Development
AI Development Services
Generative AI Integration Services
Enterprise Custom Software Development
Web Application Development
MVP / PoC Development
SaaS Application Development
Legacy Application Modernization
API Development and Integration Services
Software Integration Services
Front-End Development
DevOps & Cloud Services
Software Maintenance and Support
Custom Software That's Live in Production
AxiaGram: AI-Powered EHR Companion App
- Tags: Healthcare · United States · ODC · Active since 2021Â
- The problem: A US care-team platform needed an AI-powered companion app to integrate with hospital EHRs, support voice-to-note documentation, and stay HIPAA-compliant under audit.Â
- What we built: A telemedicine platform on .NET Core, Angular, and Azure with HL7 EHR integration, voice AI for clinical note-taking, Electronic Visit Verification with geo-tagging, and secure video powered by Agora and Wowza. AES-encrypted MySQL, fully HIPAA-aligned.Â
- Outcomes:Â 40% reduction in development time versus the client's internal benchmark. 6M+ medical records under management. $70K/month ongoing engagement, active since 2021.Â
- Read the full case study (PDF)
Wealth Management Platform
- Tags: Fintech · United States · ODC · 2+ years
- The problem: A US wealth manager needed one platform to handle portfolio management, multi-protocol trade execution, fund operations, broker management, and custodian services - with audit trails defensible to financial regulators.
- What we built: Event-sourced architecture on Azure Kubernetes Service with .NET Core, React, and Blazor. Real-time risk engines, a configurable fee engine, FIX/REST/proprietary trading gateways, tax-lot accounting, and PowerBI-embedded client reporting. Azure SQL Always-On, PostgreSQL for settlement, Cosmos DB for trade data.
- Outcomes:Â Real-time investment portfolio management tools across complex asset mixes. Automated NAV calculations and continuous testing practices for compliance. Full GDPR-compliant audit trail and cross-border tax-treaty engine.
- Read the full case study (PDF)
Fleet Management Platform
- Tags: Logistics · Australia & New Zealand · Hybrid model · 3 months
- The problem: A vehicle leasing and transport company needed to convert a manual, spreadsheet-driven prototype into a multi-tenant B2B platform serving travel agencies, transport operators, and administrators - all on one system.
- What we built: A Spring Boot + React platform on AWS with Kafka event streaming, Keycloak RBAC, OpenStreetMap geofencing, Stripe-integrated payments, and IoT GPS tracking for real-time fleet visibility. PostgreSQL for transactional data, MongoDB for telemetry, Redis for performance caching.
- Outcomes:Â 3-month delivery from prototype to production. Three distinct user roles unified in one platform. GDPR-compliant payment processing and role-based controls.
- Read the full case study
Send Your RFP. See It Built in 2 Hours.
An AI-accelerated path from full brief to working prototype - reviewed by our engineers, not a sales team. We'll send back:
- Clickable prototype of your core user flow
- Workflow visualization mapping the full system
- Architecture direction covering stack, integrations, and scale
- Technical recommendation call with our team
Why CTOs Choose Saigon Technology as Their Custom Software Development Company
AI-Native Senior Engineering
One senior engineer paired with our internal IntelliCopilot and IntelliAssistant tooling delivers measurably higher throughput than a junior-heavy team. On our 2024-2025 AxiaGram engagement, this model cut development time by 40% against the client's internal benchmark. You pay for fewer people, get more output, and ship with less rework.
ISO 9001 & 27001 Certified Delivery
Audited by BSI (UK). Our is ISO 9001-compliant quality management system plus ISO 27001 controls cover NDA, work-for-hire IP assignment, MFA, role-based access, and audit trails by default - not as upsells.
Domain Depth in Healthcare & Fintech
Production experience with HIPAA, HL7, FHIR, PCI-DSS, KYC/AML, and GDPR. We've shipped EHR integrations, real-time trading engines, and fraud-detection pipelines.Â
- View more in: Healthcare | Fintech
Rigorous Three-Round Engineer Screening
Talent Acquisition, Tech Lead, and HR each run an independent round - fewer than 5% of applicants make it through. You interview every engineer we propose. Two-week risk-free trial before any long-term commitment.
Transparent Pricing: $28-$46/hour
Published rates by seniority and role. No opaque "let us scope it" quotes that turn into surprise change orders three months in.
5 Flexible Engagement Models
ODC, Dedicated Team, Staff Augmentation, Fixed Price, and Build-Operate-Transfer. We adapt to your governance preference - not the other way around.
Fortune Best Companies SEA 2025 + VINASA Top 10
Low engineer turnover means your team stays intact across multi-year roadmaps. Onboarding cost paid once.
US/EU/AU/SG Time-Zone
Overlap 10-12 hours of daily overlap with US East and West Coast. Our engineers shift schedules - we don't ask you to take 3am standups.
Trusted by Engineering Leaders Worldwide
What Engineering Leaders Say About Working With Us
Industry-Specific Custom Software Development
Engagement Models Built Around How Your Team Works
Five engagement models, published rates, and a two-week trial on most engagements. You pick the level of control you want to keep - we don't push every client into the same delivery shape.Â
Staff Augmentation
Embed vetted engineers to close skill gaps fast.
- Team control: You manage day-to-dayÂ
- Pricing: $28-$46/hourÂ
- Min. engagement: 1 monthÂ
Dedicated Team
Long-term squads owning your product roadmap.
- Team control: Shared - PM is ours, you set scope
- Pricing: $28-$46/hour
- Min. engagement: 3 months
ODC (Offshore Development Center)
Owned offshore delivery center.
- Team control: You direct, we run operations
- Pricing: Custom
- Min. engagement: 6 months
Fixed Price
Well-scoped MVPs and projects.
- Team control: We deliver, you accept
- Pricing: Fixed bid
- Min. engagement: Project-based
BOT (Build-Operate-Transfer)
Long-term Vietnam team you'll eventually own.
- Team control: Transitions from us to you
- Pricing: Custom
- Min. engagement: 2-6 years
When Custom Software Development Beats Off-the-ShelfÂ
Off-the-shelf SaaS works until it doesn't. The moment your workflow needs a feature the vendor won't build, a compliance control they don't support, or an integration into a system they've never heard of - you're paying subscription fees for software that's blocking you. Custom software development inverts that trade-off.Â
Functionality Tailored to Your Workflows
Build what your team actually does, not a generic process forced through someone else's product roadmap. Custom workflow automation replaces workarounds, plug-ins, and "we'll just export to Excel."
Lower TCO Over Five Years
Custom software costs more upfront than a SaaS subscription, but across a five-year horizon, ownership eliminates per-seat fees, vendor lock-in, and forced version migrations. Long-term ROI and lower TCO are the metrics CFOs notice first.
Unbounded Innovation Surface
Generative AI, agentic AI, iot device programming and integration, AR/VR experiences, digital twins, and autonomous systems - capabilities your SaaS vendor will ship in three years if they ship them at all. Bespoke software development services let you build them now.
Security and Compliance by Design
Seamless Integration With Your Stack
Your ERP, CRM, data warehouse, identity provider, and analytics tools were chosen for reasons. Our software integration services wrap around what you already own, no rip-and-replace required.
Actionable, Data-Driven Insights
Data integration with your warehouse and BI layer turns operational data into actionable insights for product, finance, and ops. Dashboards, alerts, and business process automation (BPA) included where they pay back.
Modularity, Scalability, Ownership
Modularity at the service level means features can be replaced without rebuilding the system. Scalability comes from cloud-native architecture. You keep the code, the architecture decisions, and the data model - when the engagement ends, the asset doesn't go with the vendor.
How We Run a Custom Software Development Engagement
Demand Analysis
A business analyst and tech lead review your brief, market context, and end-user requirements. Output: written problem statement and proposal options.Â
Terms of Contract Discussion
We finalize project scope, engagement model, pricing, and compliance terms (NDA, IP assignment, audit rights). Output: signed MSA and SOW.
Conception & Preparation
A dedicated PM, tech lead, and software architect map the project, allocate resources, define the tech stack, and draft a risk management strategy. Output: project charter, architecture diagram, sprint plan.
Project Kick-Off
Joint kickoff with your team to align on goals, RACI, communication cadence, and the first sprint. Output: shared roadmap and Definition of Done.
Software Development
Agile sprints with AI-assisted code generation, protected repos, code reviews by tech leads, feature prioritization through your product backlog, and demoable increments every two weeks. Output: working software you can use.
Quality Assurance & Testing
Manual and automated testing through CI/CD pipelines - functional, regression, security, performance, accessibility. User acceptance testing with your stakeholders before release. Output: test reports, defect leakage metrics.
Software Deployment
Production rollout to your cloud or on-prem environment with documented rollback plans. Output: live system, runbook, monitoring dashboards.
Launch & Maintenance
SLA-backed support, compliance updates, performance tuning, and feature delivery. Output: a system that keeps shipping value after the build phase.
Custom Software Development Insights
FAQs
What are custom software development services?
Custom software development services are end-to-end engineering engagements that design, build, test, deploy, and maintain software tailored to a specific company's workflows - rather than configuring an off-the-shelf SaaS product.
A custom software development company like Saigon Technology handles every step from requirements analysis through post-deployment maintenance, typically across web, mobile, AI, and cloud platforms.Â
How much do custom software development services cost in the US in 2026?
Custom software development services in the US typically cost $25 to $60 per hour when delivered through a Vietnam-based partner, and $120 to $250 per hour when delivered onshore. Saigon Technology publishes blended team rates of $28-$46/hour, with juniors from $22/hour and senior tech leads up to $46/hour. Final cost depends on:
- Team size and seniority mix
- Technology stack (AI/ML and regulated work sit at the top of each range
- Number of integrations
- Engagement model (fixed-price builds usually carry a 10-15% premium over dedicated teams)
How long does a custom software development project take?
A custom software development project takes 8-12 weeks for an MVP, 6-12 months for the first production release of an enterprise platform, and runs indefinitely for multi-year ODC engagements. Typical timelines:
- MVP / PoC: 8-12 weeks
- Production-grade enterprise platform: 6-12 months for the first release, then continuous iteration
- Multi-year ODC engagements: indefinite as your roadmap evolves
The biggest variables are scope clarity, integration count, and whether the system has to pass external audits (HIPAA, PCI-DSS, SOC 2) before launch.
What's the difference between custom software development and off-the-shelf solutions?
Custom software development builds a system around your specific workflows, data model, integrations, and compliance requirements, while off-the-shelf software is a pre-built product you buy and configure.
SaaS is faster and cheaper to start; custom software solutions are faster and cheaper at scale once your needs diverge from what the vendor will support - typically when per-seat fees, missing features, or compliance gaps start blocking the business.
Which industries benefit most from custom software development?
Custom software development delivers the highest ROI in regulated industries (healthcare, fintech, insurance), data-heavy industries (logistics, manufacturing, automotive), and product companies where software is the core differentiator (SaaS, marketplaces, AI-native startups). These sectors have compliance, scale, or integration requirements that off-the-shelf tools can't meet without expensive workarounds:
- Regulated industries - healthcare, fintech, insurance
- Data-heavy industries - logistics, manufacturing, automotive
- Product companies where the software is the differentiator - SaaS, marketplaces, AI-native startups
How does Saigon Technology protect IP and source code?
Saigon Technology protects client IP through pre-brief NDAs, work-for-hire IP assignment in the Master Services Agreement, client-controlled source code repositories with MFA, and ISO 27001-certified access management - with SOC 2 evidence available for enterprise engagements. Specifically:
- We sign NDAs before reviewing any brief
- Our MSA includes work-for-hire IP assignment so you own everything we build
- Source code lives in your repos (GitHub, GitLab, Bitbucket) with MFA-protected access we don't control unilaterally
- ISO 27001 certification covers access management, incident response, and audit trails
- SOC 2 evidence requests supported on enterprise engagements
What engagement models does Saigon Technology offer for custom software?
Saigon Technology offers five engagement models for custom software development: Staff Augmentation, Dedicated Team, Offshore Development Center (ODC), Fixed Price, and Build-Operate-Transfer (BOT).
- Staff Augmentation - plug engineers into your team
- Dedicated Team - multi-year squad
- ODC (Offshore Development Center) - owned offshore delivery
- Fixed Price - well-scoped builds
- BOT (Build-Operate-Transfer) - we set up a Vietnam team and transfer it to you
Most US clients start with Dedicated Team or Staff Augmentation, then expand into ODC once trust is established.
Can you integrate custom software with our existing ERP, CRM, or data stack?
Yes - Saigon Technology integrates custom software with Salesforce, Microsoft Dynamics, SAP, NetSuite, Oracle, Workday, Snowflake, and dozens of vertical-specific systems through REST/GraphQL APIs, event streaming (Kafka, RabbitMQ), or ESB middleware (Apache Camel). Most engagements include multiple external integrations as a default, not an add-on.
How do you ensure quality and security in custom software development?
Saigon Technology ensures software quality and security through mandatory code reviews, automated CI/CD with build/test/static-analysis gates, ISO 27001-certified controls across the SDLC, and OWASP SAMM-aligned secure development practices for regulated industries. Our QA team also maintains automated regression suites and tracks defect leakage, cycle time, deployment frequency, and MTTR for every project:
- Mandatory code reviews and a documented "Definition of Done"
- Automated CI/CD with quality gates (build, test, static analysis)
- Automated regression suites managed by our QA team
- ISO 27001 controls across the SDLC - threat modeling, dependency scanning, pen testing
- Tracked metrics: defect leakage, cycle time, deployment frequency, MTTR
- OWASP SAMM-aligned secure SDLC practices for regulated industries
Why choose Saigon Technology over others?
Saigon Technology differs from competitors in three ways US CTOs cite most often: published $28-$46/hour pricing instead of opaque quotes, AI-native engineering that pairs each senior engineer with internal IntelliCopilot tooling for measurably higher throughput, and a 2-hour RFP-to-prototype demo no other vendor in this category offers. The three reasons in detail:
- Published pricing ($28-$46/hour) instead of opaque vendor quotes
- AI-native engineering - one senior plus AI delivers measurably higher throughput than a junior-heavy team (validated on the AxiaGram engagement: 40% dev-time reduction)
- 2-hour RFP-to-prototype demo - no other vendor in this category offers it
Add ISO 9001/27001 certification, 14+ years of delivery, and deep healthcare/fintech compliance experience, and you get a partner who can match the bigger names on capability without their bench-rate markup.