• OVERVIEW
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  • WHY CHOOSE US ?
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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.

over 350 software developers
400+
Software Developers
Over 12 years of experience
14+
Years in Business
Over 800 Projects Successfully Delivered
850+
Projects Successfully Delivered
rating on Clutch
4.8
Star Rating on Clutch

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.

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End-to-End Software Development

Requirements, ui/ux design, build, test, deploy, and maintain, with senior architects on every project.
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AI Development Services

Computer vision, NLP, and machine learning and deep learning systems trained on your data and deployed to your cloud.
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Generative AI Integration Services

LLM-powered features (chat, search, summarization) and agentic AI workflows with cost controls and prompt versioning.
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Enterprise Custom Software Development

ERP, CRM, and back-office systems that integrate with your existing stack and business processes.
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Web Application Development

React, Angular, and Vue web apps with WCAG 2.1 accessibility and performance budgets defined per project.
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Mobile App Development

Native iOS/Android plus React Native and Flutter cross-platform apps.
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MVP / PoC Development

Validate market fit through software prototyping and product ideation in 8-12 weeks, without burning runway on the wrong tech stack.
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SaaS Application Development

Multi-tenant cloud-based designs on AWS, Azure, or GCP with usage-based billing built in.
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Legacy Application Modernization

Incremental migration of legacy systems to cloud-native infrastructure. No big-bang rewrites, no frozen roadmaps.
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API Development and Integration Services

REST, GraphQL, and gRPC APIs with rate limiting, versioning, and OpenAPI documentation.
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Software Integration Services

API, ESB, and event-driven integrations across ERP, CRM, data warehouses, and identity providers.
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Front-End Development

Accessible, responsive interfaces in React, Angular, or Vue with design-system handoff.
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DevOps & Cloud Services

CI/CD pipelines, IaC, cloud and multicloud environments, and post-deployment maintenance for fast, reliable releases.
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Software Maintenance and Support

24/7 monitoring, SLA-backed bug fixing, and update services on a fixed monthly fee.
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Custom Software That's Live in Production

Three engagements that show how our custom software development services move from kickoff to measurable outcome. Each one is referenceable, we can put you on a call with the client.
AxiaGram - AI-Powered EHR Companion Appy

AxiaGram: AI-Powered EHR Companion App

  • Tags: Healthcare · United States · ODC · Active since 2021 
  • 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. 
  • 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. 
  • Outcomes: 40% reduction in development time versus the client's internal benchmark. 6M+ medical records under management. $70K/month ongoing engagement, active since 2021. 
  • Read the full case study (PDF)
Wealth Management Platform

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: 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)
Case study: fleet management platform banner

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: 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
Send Your RFP
Phong Le - AI tech lead

Why CTOs Choose Saigon Technology as Their Custom Software Development Company

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.

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.

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. 

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.

Published rates by seniority and role. No opaque "let us scope it" quotes that turn into surprise change orders three months in.

ODC, Dedicated Team, Staff Augmentation, Fixed Price, and Build-Operate-Transfer. We adapt to your governance preference - not the other way around.

Low engineer turnover means your team stays intact across multi-year roadmaps. Onboarding cost paid once.

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.

Why choose Saigon Technology 2026

Trusted by Engineering Leaders Worldwide

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What Engineering Leaders Say About Working With Us

Saigon Technology provided the expert advice and technical development we needed to successfully launch our platform. Thanks to their dedication and expertise, we are now fully operational. I truly appreciate their professionalism and ongoing support.
Mr. Jowen Kuah
Mr. Jowen Kuah
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Saigon Technology has been a reliable and committed partner in our telehealth project. They consistently delivered on time, provided responsive 24/7 support, and were always available on WhatsApp, even after working hours, whenever we needed urgent assistance. What stood out most was their continuous attention to security and speed, which are essential for a healthcare platform. Their strong ownership and responsiveness made a real difference to the success of the project.
Eric Chiam
CEO - Minmed, Telehealth
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We value Saigon Technology’s strong support in managing the engagement from an internal delivery perspective. They were able to maintain team performance across a relatively large team, provide additional resources when required, and work collaboratively with us on matters such as gap time, discount proposals, and improvements to the working process. Their flexibility and consistent management support contributed positively to the overall partnership.
Sri Vijayasarathy
CTO, Axiagram
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During our collaboration, Mr. Thanh and his company, Saigon Technology, have consistently demonstrated world-class leadership and execution in complex fintech projects. His ability to scale and lead high-performing engineering teams, while maintaining cost-efficiency and product quality, has been critical to our technology operations. His strategic insights and leadership enabled us to significantly improve system stability and deployment velocity.
Abe Jarrett
Senior Vice President of Software Engineering at Origence, USA
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Over the past year, collaborating with Saigon Technology Solution company, we have brought high-quality financial software solutions. STS helps us meet the strict requirements of the IT market with software engineers, software testers, and internal system control. And all of these are evidence that we have chosen a good software outsourcing partner.
Mr. Corbin van Amelsvoort
Director at Topicus Vietnam
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Its a complete piece of mind working with Saigon folks. Prompt in response and quality of work is also great. We have been associated with Saigon for a few years now and we are really happy & satisfied.
Vivek Marwaha
Senior Project Manager at DMI
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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. 

Staff Augmentation

Embed vetted engineers to close skill gaps fast.

  • Team control: You manage day-to-day 
  • Pricing: $28-$46/hour 
  • Min. engagement: 1 month 
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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
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ODC (Offshore Development Center)

Owned offshore delivery center.

  • Team control: You direct, we run operations
  • Pricing: Custom
  • Min. engagement: 6 months
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Fixed Price

Well-scoped MVPs and projects.

  • Team control: We deliver, you accept
  • Pricing: Fixed bid
  • Min. engagement: Project-based
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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
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When Custom Software Development Beats Off-the-Shelf 

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. 

When Custom Software Development Beats Off-the-Shelf

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."

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.

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.

HIPAA, PCI-DSS, GDPR, SOC 2, and other domain-specific regulatory requirements - embedded at the architecture level, not bolted on. Vulnerability assessments, secure coding practices, and shift-left testing sit inside the SDLC. Systems we've built are audited under HIPAA, PCI-DSS, and GDPR scopes.

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.

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 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

Eight steps, refined across 900+ projects. Every step has a named owner and a measurable deliverable. AI-assisted engineering sits across the whole lifecycle, from automated code review to AI-generated test scaffolding, but engineering judgment stays human.
Software Development Process

Demand Analysis

A business analyst and tech lead review your brief, market context, and end-user requirements. Output: written problem statement and proposal options. 

Software Development Process

Terms of Contract Discussion

We finalize project scope, engagement model, pricing, and compliance terms (NDA, IP assignment, audit rights). Output: signed MSA and SOW.

Software Development Process

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.

Software Development Process

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 Process

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.

Software Development Process

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 Development Process

Software Deployment

Production rollout to your cloud or on-prem environment with documented rollback plans. Output: live system, runbook, monitoring dashboards.

Software Development Process

Launch & Maintenance

SLA-backed support, compliance updates, performance tuning, and feature delivery. Output: a system that keeps shipping value after the build phase.

The Custom Software Development Stack We Build On

Custom Software Development Insights

FAQs

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. 

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)

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.

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.

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

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

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.

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.

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

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.

Your Next Custom Software Build Starts Here

Talk to an engineering leader, not a sales rep. We'll review your scope, recommend an architecture, and confirm a delivery timeline within one business day. No deck. No discovery call about discovery calls.

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