Software Migration Services Company

Q: How do you migrate without downtime or data loss?

We use a phased cutover and structured data migrations with mapping, validation, and reconciliation against the source. Legacy systems stay online, connected via APIs, until the new platform is verified.

Move legacy systems, databases, and applications to modern platforms, with senior engineers, AI-accelerated analysis, and zero-downtime cutovers built for business outcomes, not headcount.

Is your software holding the business back, expensive to maintain, hard to scale, and blocking the integrations you need next? Saigon Technology delivers software migration services that modernize your systems without interrupting operations. As a senior-led, AI-native engineering partner with 14+ years of experience, 850+ projects delivered, and ISO 9001 & ISO 27001 certification, we plan every migration around a predictable plan, and back it with legacy software migration services proven across healthcare, fintech, and logistics.

Let's discuss your needs

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What Is Software Migration?

Software migration is the process of moving an application, its data, and its codebase from an outdated platform, framework, or infrastructure to a modern one, without losing functionality or interrupting the business.

That covers everything from legacy system migration and database moves to full migration & modernization of the underlying architecture. At Saigon Technology, our software migration services pair senior engineers with AI-accelerated analysis to map your system, surface hidden risk early, and rebuild only what needs to change, so you keep what works and modernize the rest.

Meet Quy Truong - Solution Architect

Detail

Meet Trung Le - Business Analyst

Detail

400+

Software Developers

14+

Years in Business

850+

Projects Successfully Delivered

4.8

Star Rating on Clutch

Our Software Migration Services

Every engagement is scoped to your system and your goals. Our core software migration services include:

Legacy application & code migration

We modernize aging applications through structured legacy code migration and refactoring, replacing outdated components and unsupported libraries, eliminating technical debt, and moving your logic onto current stacks such as .NET 6+ or Java. The result is functional parity with a cleaner, more maintainable foundation.

Database & data migration

We perform structured data migrations between database engines, with mapping, validation, and reconciliation against the source, so nothing is lost in the move. You get improved reliability, better performance, and a future-ready data foundation.

Application replatforming & rebuilds

When a platform can no longer scale, we rebuild on modern infrastructure through application migration services and replatforming, decoupling UI from business logic, updating APIs, and optimizing data flows. Delivered by our custom software development and back-end development teams.

Architecture modernization

We migrate monolithic architecture to microservices, improving enhanced scalability, resilience, and release speed. This is a common path for our enterprise software development clients.

System integration during migration

We keep old and new systems working together during the transition through software integration services, eliminating data silos, business disruptions, and compatibility gaps.

Cloud migration

Moving to the cloud? We handle cloud migration as part of a broader modernization roadmap. For a dedicated engagement, see our cloud migration services.

Let's Talk About Your Project

Software Migration Case Studies

Idealpos Cloud

Local-to-cloud migration for a global Point of Sale company.

Challenge: Idealpos needed to move point of sales (POS) system data, customer information, licensing, and invoicing from local machines to the cloud, while keeping thousands of terminals running.
Solution: We migrated management of POS data to Microsoft Azure, built a cloud reporting system with role-based access, and integrated payment gateways and eCommerce platforms via new APIs.
Stack: .NET, Angular, Azure DevOps (Development / Staging / Production).
Outcome: Work efficiency improved significantly on the client's side, and more systematic testing kept the enhanced system running smoothly under heavy data load. The offshore model delivered cost efficiency, while agile troubleshooting and quick enhancement rapidly lifted the client's technical competence.
Engagement / timeline: Offshore dedicated team, started with 2 web and 2 mobile developers plus a project manager, scaled to 8 over the first year; a 12-month roadmap delivered by milestones with fortnightly reviews. · Client: Idealpos - Retail / Point of Sale, Brisbane, Australia.
Read the full case study →

Scholar OS

Database migration (MS SQL → MySQL) with a legacy system that couldn't be switched off.

Challenge: Student, academic, and financial records lived in disconnected systems, and a long-running legacy platform (built on .NET, C#, and MS SQL) still ran essential operations. A full rewrite was off the table, it had to keep working while modernization happened around it.
Solution: We ran a careful structured data migration from MS SQL to MySQL, mapping, validating, and reconciling records against the source, sequenced around live operations to keep disruption minimal. The legacy system stayed online, connected via APIs, while a unified platform was built on Node.js and MySQL.
Stack: Node.js, MySQL, REST APIs.
Outcome: A single source of truth for student, academic, and financial data, with no lost history, that ended the manual, department-by-department reconciliation. Learning and recruitment were modernized through integrated LMS and CRM modules, and the institution gained continuity through change: the legacy STARS system stayed live throughout, avoiding a high-risk rip-and-replace, on a future-ready Node.js + MySQL foundation.
Engagement / timeline: Delivered as a validated interactive prototype (prototype-first) that lets stakeholders click through the unified platform before heavier investment. · Client: an education institution (EdTech); platform delivered as "Scholar OS."
Read the full case study →

Personal Loan Platform

Legacy-to-microservices architecture migration for a US lending platform.

Challenge: The client needed to migrate an old system into a new microservices architecture — moving off a bespoke framework and transferring modules to current services — while ramping a senior team fast.
Solution: We migrated the legacy system into a domain-driven microservices architecture, resolved breaking changes during the transfer, and stood up service teams with overlapping hours for smooth collaboration.
Stack: Java Spring Boot, ReactJS, microservices, Kafka, AWS, DynamoDB.
Outcome: Agile delivery drove rapid improvement of the client's technical proficiency, while distributed service teams operated across time zones with daily overlapping hours to keep collaboration tight and decisions fast.
Engagement / timeline: Offshore dedicated team ramped to 20 senior engineers within 3 months, organized into domain-aligned service teams. · Client: a US personal-loan lending platform.
Detail | Read the full case study (PDF) →

Send Your System. Get a Migration Plan in 24 Hours.

An AI-accelerated path from your current system to a migration assessment and target-architecture plan, built by our engineers, not a sales team.

Migration assessment of your current platform and data
Risk and dependency map for the migration
Target architecture covering stack, data, and integrations
Migration strategy call with our engineering team

Send Your System

Why Choose Saigon Technology for Software Migration?

We're not a traditional outsourcing vendor, we're a senior-led engineering partner that treats your legacy modernization process as an architecture problem first. Here's what sets our legacy software migration services apart:

Senior engineers + AI

One senior engineer paired with AI-assisted migration does the work of three juniors, fewer people, more output, less rework. Every AI-accelerated change is reviewed by experienced architects.

Discover Our Talent →

ISO 9001 & ISO 27001 certified

Governance, NDAs, and secure engineering aligned with GDPR and PDPA, with HIPAA/HL7 support for healthcare.

14+ years, 850+ projects

A proven track record across healthcare, fintech, and logistics since 2012.

Vietnam cost-to-quality

Published rates of $22–$46/hour for strong engineering throughput.

Fluent English + US time-zone overlap

10–12 hours of daily overlap for US East and West Coast teams.

Two-week risk-free trial

Interview candidates and test the team before any long-term commitment.

Architecture advice from day one

We advise on the full solution and the best migration solutions for your case, not just execute tasks.

Contact Our Experts

Trusted by Global Clients

What Our Clients Say

Being a client of Thanh’s, from the beginning, I have been very impressed with Thanh’s professionalism and exceptional customer service. Thanh and his team have always provided me with high-quality work at a very reasonable cost and always within the given time frame. I have no hesitation in recommending Thanh.

Mr. Matt Niemeyer

Managing Director APAC - ISMS Global

What we valued from Saigon Technology was not only the capability of the team itself, but also the consistency behind the delivery. The engagement was supported by strong internal management, clear coordination, and a steady focus on quality, which helped the project run in a reliable and professional manner.

Bryan McConnell

COO of NZPA, New Zealand

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

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

CTO of Loan City Pte Ltd, Singapore

I would recommend companies to work with Saigon Technology for their Software development or service needs. The project team is very responsible for their work and would recommend solutions in the interest of the client. The team also responds very quickly to requests, bugs, and questions. One exceptional quality of Saigon Technology was their patience with clients. There were several times when we were slow to respond or test our apps, but the project team was still very accommodating towards us.

Jeremy Heng

Development Manager - Rehau Group PTE

Industries We Serve

eCommerce Software Development

Fintech Software Development

Healthcare Software Development

Business Software Development

Financial Software Development

Real Estate Software Development

Education Software Development

Logistics Software Development

Utility Software Development

Rehost, Replatform, Refactor, or Rebuild?

Not every system needs a full rewrite. The right migration scenario depends on your cost, risk, and timeline, so we start by matching your system to one of the proven migration approaches, then recommend the one that fits your industry's specific requirements, and tell you plainly when the simpler option is the smarter one.

Rehost

Move the system as-is to modern infrastructure. Fastest, lowest risk; limited modernization.

Replatform

Move with targeted improvements (e.g., a new database engine) and minimal code change.

Refactor

Restructure the codebase and apply clean architecture to fix technical debt while keeping behavior.

Rearchitect

Redesign toward microservices for scalability and independent deployment.

Rebuild

Rewrite the application on a modern stack when the legacy base can't carry the business forward.

Replace

Retire and swap for a new solution when that delivers more value than migrating.

Benefits of Software Migration

Done right, migration pays for itself. Our clients see:

Lower maintenance costs

Retire outdated components and stop paying to keep fragile systems alive.

Stronger security & compliance

Close the gaps that legacy platforms leave open.

Enhanced scalability

Architectures that grow with demand instead of buckling under it.

Better performance

Faster queries, cleaner data flows, and fewer failures.

Unlocked integrations & AI-readiness

Modern APIs that connect to the tools your business needs next.

Reduced technical debt

A clean architecture foundation that speeds up every future release.

Our Software Migration Process

We deliver every migration through a transparent, Agile + DevOps workflow with clear main stages, and our pre-developed framework lets you assemble a dedicated team, or strengthen your existing one, in a couple of weeks.

Discovery & code analysis

General project planning, dependency mapping, and code analysis to understand the real state of the system and the possible risks.

Migration strategy & roadmap

Approach selection (the 6 R's), ROI and risk estimates, and a predictable plan with timelines and team composition.

Data migration & validation

Structured data migrations with mapping, validation, and reconciliation.

Refactoring, rebuild & integration

Refactoring and seamless migration of not-supported third-party components, plus correction of run-time errors and integration with your existing systems.

QA & testing

Manual and automated testing across environments to hold quality under load.

Phased launch

A zero-downtime, staged cutover that keeps services available.

Maintenance & knowledge transfer

Documentation, training, and ongoing support with a managed team or time and materials model to fit your needs.

Core Technologies and Tools We Use

Our Insights

Methodology

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Industry

Healthcare Cloud Migration: A HIPAA-Ready Roadmap from Real-World Builds

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Jul 14, 2026

What are software migration services?

Software migration services move an application, its data, and its code from an outdated platform to a modern one, without losing functionality. They cover legacy code migration, database and data migration, replatforming, architecture modernization, and cloud migration.

What does a software migration company do?

A software migration company audits your legacy system, recommends a migration approach, then migrates code, data, and infrastructure with testing and validation. Saigon Technology also handles integration, phased cutover, and post-launch support.

How much do software migration services cost?

Cost depends on system size, migration approach, and complexity. Saigon Technology works at published rates of $22–$46/hour and provides a fixed estimate after a short code-analysis and scoping phase, so you get a predictable plan before work begins.

How long does a software migration project take?

Timelines range from a few weeks for a rehost to several months for a full rebuild. After discovery and code analysis, we give you a roadmap with main stages and clear milestones.

Should we migrate in-house or outsource software migration?

Outsourcing gives you senior migration specialists and a proven framework without hiring and retaining a niche team. Saigon Technology offers a two-week risk-free trial so you can validate the fit before committing.

What technologies, standards, and compliance do we use for software migration?

Core technologies (tailored to your migration):

Backend: .NET (including .NET 6+), Java, Node.js, Python
Frontend: React, Angular, Vue.js, TypeScript
Cloud & DevOps: AWS, Azure, Google Cloud, Docker, Kubernetes, Terraform
Migration specifics: database-engine moves (e.g., MS SQL → MySQL/PostgreSQL), monolithic architecture → microservices, and desktop-to-web/mobile modernization, updating legacy UI frameworks, third-party libraries, and APIs along the way.

Standards & compliance: ISO 9001 (Quality) and ISO 27001 (Information Security); HIPAA / HL7 for healthcare; PCI-DSS / SOC 2 for fintech; GDPR and PDPA for data protection. For regulated systems such as a payment system, payroll & tax management software, or an ERP system, we keep data compliant at every stage of the migration.

How do you migrate without downtime or data loss?

We use a phased cutover and structured data migrations with mapping, validation, and reconciliation against the source. Legacy systems stay online, connected via APIs, until the new platform is verified.

How do you keep data compliant (HIPAA / PCI-DSS) during migration?

Compliance is built into every stage: encryption, role-based access, audit trails, and secure engineering aligned with ISO 27001, HIPAA/HL7, PCI-DSS, GDPR, and PDPA, matched to your industry's specific requirements.

Build Your Software Migration Roadmap with Saigon Technology

From legacy audit to a zero-downtime production cutover, our AI-augmented senior engineers plan and execute software migration services that cut cost and risk while unlocking modern integrations.

Software Migration Services

What Is Software Migration?

Meet Quy Truong - Solution Architect

Meet Trung Le - Business Analyst

Our Software Migration Services

Legacy application & code migration

Database & data migration

Application replatforming & rebuilds

Architecture modernization

System integration during migration

Cloud migration

Software Migration Case Studies

Idealpos Cloud

Scholar OS

Personal Loan Platform

Send Your System. Get a Migration Plan in 24 Hours.

Why Choose Saigon Technology for Software Migration?

<img width="24" height="24" src="https://saigontechnology.com/wp-content/themes/sts/assets/images/global-icon/voted.svg" alt="Senior engineers + AI" title="Senior engineers + AI" loading="lazy"> Senior engineers + AI

<img width="24" height="24" src="https://saigontechnology.com/wp-content/themes/sts/assets/images/global-icon/voted.svg" alt="ISO 9001 &amp; ISO 27001 certified" title="ISO 9001 &amp; ISO 27001 certified" loading="lazy"> ISO 9001 & ISO 27001 certified

<img width="24" height="24" src="https://saigontechnology.com/wp-content/themes/sts/assets/images/global-icon/voted.svg" alt="14+ years, 850+ projects" title="14+ years, 850+ projects" loading="lazy"> 14+ years, 850+ projects

<img width="24" height="24" src="https://saigontechnology.com/wp-content/themes/sts/assets/images/global-icon/voted.svg" alt="Vietnam cost-to-quality" title="Vietnam cost-to-quality" loading="lazy"> Vietnam cost-to-quality

<img width="24" height="24" src="https://saigontechnology.com/wp-content/themes/sts/assets/images/global-icon/voted.svg" alt="Fluent English + US time-zone overlap" title="Fluent English + US time-zone overlap" loading="lazy"> Fluent English + US time-zone overlap

<img width="24" height="24" src="https://saigontechnology.com/wp-content/themes/sts/assets/images/global-icon/voted.svg" alt="Two-week risk-free trial" title="Two-week risk-free trial" loading="lazy"> Two-week risk-free trial

<img width="24" height="24" src="https://saigontechnology.com/wp-content/themes/sts/assets/images/global-icon/voted.svg" alt="Architecture advice from day one" title="Architecture advice from day one" loading="lazy"> Architecture advice from day one

Trusted by Global Clients

What Our Clients Say

Industries We Serve

eCommerce Software Development

Fintech Software Development

Healthcare Software Development

Business Software Development

Financial Software Development

Real Estate Software Development

Education Software Development

Logistics Software Development

Utility Software Development

Rehost, Replatform, Refactor, or Rebuild?

Rehost

Replatform

Refactor

Rearchitect

Rebuild

Replace

Benefits of Software Migration

<img width="24" height="24" src="https://saigontechnology.com/wp-content/themes/sts/assets/images/global-icon/voted.svg" alt="Lower maintenance costs" title="Lower maintenance costs" loading="lazy"> Lower maintenance costs

<img width="24" height="24" src="https://saigontechnology.com/wp-content/themes/sts/assets/images/global-icon/voted.svg" alt="Stronger security &amp; compliance" title="Stronger security &amp; compliance" loading="lazy"> Stronger security & compliance

<img width="24" height="24" src="https://saigontechnology.com/wp-content/themes/sts/assets/images/global-icon/voted.svg" alt="Enhanced scalability" title="Enhanced scalability" loading="lazy"> Enhanced scalability

<img width="24" height="24" src="https://saigontechnology.com/wp-content/themes/sts/assets/images/global-icon/voted.svg" alt="Better performance" title="Better performance" loading="lazy"> Better performance

<img width="24" height="24" src="https://saigontechnology.com/wp-content/themes/sts/assets/images/global-icon/voted.svg" alt="Unlocked integrations &amp; AI-readiness" title="Unlocked integrations &amp; AI-readiness" loading="lazy"> Unlocked integrations & AI-readiness

<img width="24" height="24" src="https://saigontechnology.com/wp-content/themes/sts/assets/images/global-icon/voted.svg" alt="Reduced technical debt" title="Reduced technical debt" loading="lazy"> Reduced technical debt

Our Software Migration Process

Discovery & code analysis

Migration strategy & roadmap

Data migration & validation

Refactoring, rebuild & integration

QA & testing

Phased launch

Maintenance & knowledge transfer

Core Technologies and Tools We Use

AI Technologies

Back-end Technologies

Front-end Technologies

Cloud Computing

DevOps

Database Access

Our Insights

How To Deal With Tough Challenges In Cloud Migration

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