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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
Application Modernization Solutions That Keep Your Business Running
Users keep working during the change: A phased strategy ships changes while the current system stays in service and under maintenance. During the Merit Logistics program, staff checked in through one new app that ran against the old ERP and its successor alike.
Business rules survive the new architecture: Every engagement opens with a code audit at no charge, run with read-only repository access, that records how the application behaves today and ends in a work breakdown you keep.
The right cloud for each workload: Each component lands on AWS, Azure or Google Cloud based on a cloud readiness assessment of its load, data and cost profile, and Saigon Technology is a Microsoft Solutions Partner for teams standardizing on Azure.
Your code and data stay protected: Work runs under ISO 9001 and ISO 27001 certified by BSI (UK). An NDA is signed before requirements are shared, and code and IP are assigned to you as work is delivered.
You see every release: One named Project Manager works with you directly, and your team gets Jira and code repository access to follow each change and talk with the developers.
Who we build for
- Enterprise teams: Restructure core business applications release by release through an offshore development center.
- Mid-market companies: Bring an aging product onto current platforms with senior engineers added through staff augmentation.
Our Application Modernization Services
Modernizing Long-Running Core Systems
Modernization Assessment and Roadmap
Moving Off End-of-Life Platforms
Framework and Platform Upgrades
Cloud-Native Architecture on AWS, Azure and Google Cloud
Data Platforms Behind Modernized Apps
AI Features for Existing Applications
Case Studies: Modernization Projects We Delivered
Turn It Blue Ads: A Platform Evolved Over Five Years
- Challenge: The demand partner behind this self-service programmatic ad platform ceased operations in 2023.Â
- What we built: A partner-agnostic backend and consolidated analytics, delivered through more than 60 delivery items.Â
- Engagement / timeline: Five years with the same team since 2022, moving from fixed price to maintenance, enhancement and a dedicated team.Â
- Outcome: Partners are reconfigured in under a minute, and more than 130 maintenance items have been closed since 2022.Â
- Stack: .NET Core, React, PostgreSQL, AWS, Hangfire.Â
- Read the full case study
Merit Logistics: One Check-In App Across Old and New ERP
- Challenge: A field-workforce ERP built by several vendors over many years had become hard to maintain and extend.
- What we built: Documented business rules, kept the live ERP maintained, built its successor on .NET Core and added an Android check-in app using a PIN or face.
- Engagement / timeline: An offshore development center under Agile Scrum, run in three phases with weekly effort reports.
- Outcome: Employees checked in through a single app that worked with both systems while the change was under way.
- Stack: .NET Core, React, Angular, Kotlin and Java for the Android app, Consul, Fabio, Grafana.
- Read the full case study
ARB Australia: Web and Mobile Built From the Same Source
- Challenge: A warehouse app written in Ionic had gone unmaintained and showed performance issues that made support hard.
- What we built: A React Native app for scan-gun warehouse work, covering QR import, label printing, cycle count and transfer, plus a CI/CD pipeline.
- Engagement / timeline: Hourly and flexible, with a React Native developer and a part-time DevOps engineer, daily meetings and biweekly sprints.
- Outcome: The same source code now produces both the web and mobile versions, and a move to Oracle Cloud has been researched.
- Stack: React Native, REST API, Azure DevOps, Oracle Cloud.
- Read the full case study
Get a Modernization Assessment for Your Apps
Why Choose Saigon Technology for Application Modernization Services
A good modernization partner tells you what to leave alone, keeps users working through every release, protects your code and IP, and keeps one team on the system after launch. Saigon Technology backs each of those points with named architects, published case studies and audited certifications.Â
"Moving an application to the cloud doesn't modernize it on its own. We decide which parts need new boundaries, which need only an upgrade, and which should stay as they are, so the team spends effort where users will feel it."Â Linh Pham, Senior Solution Architect, Saigon TechnologyÂ
Advice on What Not to Change
Some modules are better kept as they are, and changing them only adds risk and cost. Our architects say so in the assessment, and our Research Labs test new approaches on working demos before you commit budget.Â
Software Engineers at $22-$46/hr, Senior-Led
Modernization mistakes surface months later in production, so senior engineers lead every team. Rates are USD $22-$46/hr, senior-led. Fewer hours go to rework when seniors lead, so each finished release costs less.
Security Built Into Every Release
Modernized apps often carry customer and payment records, so access is controlled from the first audit. Compliance follows the workload: HIPAA and PCI-DSS requirements are met where the workload needs them, GDPR is applied as standard when an engagement handles EU personal data, and SG PDPA is covered for Singapore work.
Teams That Stay for the Long Run
After go-live, the engineers who restructured the code know why each boundary sits where it does. Turn It Blue Ads has kept the same team for five years since 2022, and we rank #10 in the Medium category of Southeast Asia Best Workplacesâ„¢ in Technology 2026 (Great Place To Work).
Microsoft Solutions Partner and ISO Certified
Saigon Technology is a Microsoft Solutions Partner, which matters when Azure carries the workload. Delivery runs under ISO 9001 and ISO 27001, both certified by BSI (UK), so each release follows a documented, audited process.
Solution Architects on Every Assessment
An assessment done by a generalist misses the dependencies that break releases later. Linh Pham and Quy Truong, Senior Solution Architects, review the architecture behind each modernization plan and set the release order before engineers start work.
Track Record: 14+ Years and 850+ Projects
Saigon Technology brings 14+ years, 400+ developers, 850+ projects, 350+ clients and 3 development centers to each engagement. We publish the work and the timelines, and leave out outcome figures a client has not cleared.
Two-Week Risk-Free Trial, Then the Model That Fits
A modernization partner is hard to judge before it touches your code. Engineers can start with a two-week risk-free trial, then continue as fixed price, staff augmentation, a dedicated team, an ODC or BOT as the program grows.
Trusted by Global Clients
What Our Clients Say
Industries We Serve
Our Modernization Process: From Assessment to Rollout
Application assessment
Engineers run a technical debt assessment of code, dependencies and hosting with read-only access and record the business rules the application enforces. Exit criterion: a work breakdown with prioritized risks.Â
Target architecture
Architects choose the target structure and hosting for each component, including parts that stay as they are. Exit criterion: an approved design and release order.
Pilot release
One low-risk module ships first as a pilot, or as a proof of concept when the approach is untested. Exit criterion: the pilot runs in production.
Staged rollout
Remaining modules ship in planned releases while the current system keeps serving users. Exit criterion: each release passes acceptance tests.
Parallel running and cutover
Old and new versions handle the same cases before traffic moves. Exit criterion: results match and rollback is tested.
Run and optimize
The team that built it keeps maintaining it, cutting operational costs and fixing performance bottlenecks after launch. Exit criterion: an agreed support model is in place.
Our Insights
FAQs
How much do application modernization services cost?
The cost of modernizing your applications depends on the number of applications, their size and the target platform. Saigon Technology works at USD $22-$46/hr, senior-led (about SGD 28-59 for Singapore clients), and projects start from $10,000. A code audit at no charge comes first, so the estimate rests on your actual codebase.Â
How long does it take to modernize an application?
Modernization timelines depend on scope, technical debt, code quality and how many systems connect to the application. A pilot release usually comes first, then the remaining modules ship in stages, so users see change early instead of waiting for one long cutover. The assessment ends in a work breakdown that sets dates for each release.
Is moving an app to the cloud the same as modernizing it?
Moving an app to the cloud changes where it runs, while modernizing it changes how it is built. A hosting move keeps the same architecture and its limits. Modernization restructures code, data and integrations into cloud-native apps whose parts scale and release on their own. Many programs do both, with the hosting move handled as a separate step.
Do you offer consulting before any code changes?
Saigon Technology offers consulting before any code changes: a Senior Solution Architect reviews your applications and recommends what to change, upgrade or keep. Calls fit your hours, with 10-12h overlap for US teams and a Reston, VA team on 9-17 ET. Vietnam is 3-4 hours behind Sydney and 1 hour behind Singapore, and the Vietnam afternoon meets the European morning.
What does an application modernization service include?
An application modernization service takes software your business already runs and makes it easier to change, scale and secure. The work usually includes an assessment, a target architecture, code and framework upgrades, cloud adoption where it fits, data restructuring and staged releases, with support continuing after launch.
Which cloud platforms do you modernize applications on?
Saigon Technology modernizes applications on AWS, Microsoft Azure and Google Cloud, choosing the platform per workload. Our AWS application modernization services move workloads onto containers, managed databases and serverless computing where they fit, with the same pattern on Azure and Google Cloud. Where data must stay on premises, a hybrid cloud strategy connects those systems to the cloud services.
How do you keep the application running during modernization?
Users keep working because changes ship in stages while the current system stays live and maintained. Old and new versions handle the same cases before each cutover, and rollback is tested first to guard against data loss. At Merit Logistics, employees used one check-in app connected to the old ERP and its successor throughout the transition.
Which technologies do you work with?
Our modernization teams work with .NET and Java back ends, Node.js, React and React Native front ends, Docker and Kubernetes for containerization, and AWS, Azure and Google Cloud for hosting. The approach is technology-agnostic: the final stack follows the assessment, and a component stays on its current technology when changing it adds no value.
Who supports the application after modernization?
The team that modernized the application can stay on to maintain and extend it, and the engagement model can change as your needs do. Turn It Blue Ads has kept the same team for five years since 2022, with more than 130 maintenance items closed. Ongoing work runs through our software maintenance and support service.