Maintenance complexity
Huge classes mix business logic, data access and UI code, so every fix is slow and isolating a defect becomes guesswork.
Legacy modernization
Modernize legacy applications and ERPs. From code to cloud.
We re-engineer business-critical systems built on ageing frameworks, databases and servers into secure, API-first, cloud-ready platforms on Java, Spring Boot, Node.js, NestJS, React, Angular or Vue. We work module by module, and your existing system keeps running in parallel until every module is live.
01Any legacy stack02Zero business disruption03Cloud, API & AI-ready
From our flagship enterprise ERP modernization
200+ERP modules migrated
10+Business divisions modernized
82%Reduction in code complexity
0Business disruption
Built for the enterprise
Your systems run the business. Modernizing them shouldn't stop it.
ERPs and core business applications carry decades of rules for finance, distribution, manufacturing, HR and dealer networks. A big-bang rewrite puts all of that at risk. We modernize the code, UI, database and infrastructure underneath your business logic one module at a time, so every phase delivers value and no team has to stop working.
Who we partner with: CIOs, CTOs and application owners of multi-division enterprises, manufacturers, distributors and conglomerates.
01
Any stack in
Struts, JSF, J2EE, JSP, AngularJS, legacy databases, on-premise servers
02
Modern stack out
Spring Boot, Node.js, NestJS, React, Angular, Vue, the right database, the cloud
03
One proven method
Module-wise migration with the legacy system running in parallel
Modernization tracks
Five tracks, from code to cloud. Pick one or combine them.
Most programmes combine several tracks: a new back end, a new UI, a database move and a cloud landing. All of them follow the same zero-disruption method.
Application & back end
We move business logic off end-of-life frameworks onto supported, layered back ends, and keep the rules your business depends on.
FromApache Struts 1.x / 2.xJSF, J2EE & EJBServlet / JSP appsXML-configured SpringMonolithic codebases
ToJava 17 / 21 LTSSpring Boot & Spring MVCNode.jsNestJSREST APIs
- Business logic extracted into a clean service layer
- Existing URL and API contracts preserved
- Unit and integration tests made possible
Signs it's time
Six signs your legacy systems are holding the enterprise back.
Shrinking talent pool
Engineers who know legacy frameworks are hard to hire, and new hires need months before they can safely ship a change.
Release bottlenecks
A small change in one module forces a full redeployment that touches every team and every user at once.
Scalability ceiling
Fixed on-premise capacity and session-heavy design stop you from scaling the modules that need it.
Security exposure
End-of-life frameworks, databases and servers receive no patches, leaving the enterprise open to known CVEs.
Integration barrier
No APIs means no clean path to e-commerce, mobile apps, partner portals, analytics or AI services.
Modernization paths
The right path for every module, not one answer for the whole system.
We assess each module on business criticality, technical debt and integration needs, then pick the approach that gives the best return. Most enterprise programmes combine these approaches.
Refactor
Restructure code on a supported foundation without changing what the system does. This removes technical debt and restores vendor patching.
Best whenFunctionality is sound, but the code base is fragile
Re-platform
Move to a modern runtime, database or cloud with targeted changes. This cuts infrastructure cost and operational effort.
Best whenInfrastructure, not the code, is the main constraint
Re-architect
Rebuild module by module into a layered, API-first architecture while the legacy system keeps running beside it.
Best whenThe system is mission-critical and must evolve for 10+ years
Extend & integrate
Expose existing capabilities through secure APIs for web, mobile, partners and AI, without touching core transactions.
Best whenNew channels are needed before the full migration finishes
Module-wise incremental migration
Five phases. Value at every step. Zero downtime.
01
Assess & plan
Inventory of code, data, integrations and infrastructure, which produces a module-wise roadmap and business case.
02
Foundation
Target architecture, cloud landing zone, security baseline and CI/CD pipeline put in place.
03
Incremental migration
Modules move one at a time, with the legacy system running in parallel and contracts preserved.
04
Data & cloud cutover
Data migrated and reconciled, performance tested, then each module goes live on the new platform.
05
Decommission & optimize
Legacy retired, costs and performance tuned, and the API surface published.
Legacy runs in parallel throughout
Modules move across one at a time, so users never face a big-bang cutover.
PhaseLegacy systemModern platform
01 · Assess
Fully live
Planned
02 · Foundation
Fully live
Platform ready
03 · Migrate
Shrinking
Modules going live
04 · Cutover
Read-only fallback
Carrying the load
05 · Decommission
Retired
Sole platform
Data kept in sync while both run
Parallel operationIncremental deliveryURL & API contract preservationRisk containmentDaily business continuity
Architecture, before and after
From a tangled monolith to a layered, cloud-native platform.
API-first · Cloud-native · Secure by design · AI-ready
Single monolithic deployment with every module bundledDomain-based modules that evolve and release independently
Business logic buried in UI controllersStrict Controller → Service → Repository layering
Hand-written SQL and manually managed connectionsManaged data access with declarative transactions
Home-grown security with incomplete access controlStandard security with RBAC and OAuth 2.0
Fixed on-premise capacity and manual releasesCloud auto-scaling with automated CI/CD
Little logging and no automated testsStructured logging, monitoring and full test coverage
Featured case study · Enterprise ERP
A 20-year-old, multi-division automotive ERP moved from Struts to Spring Boot 3.5.
A leading automotive enterprise ran its ERP across 10+ business divisions, from automobiles and spares to finance, HRMS and e-commerce. We migrated 200+ modules from Apache Struts to Spring MVC on Spring Boot 3.5 using 18 reusable migration patterns, and every division kept operating throughout.
AutomobilesSpares & PartsAccounts & FinanceHRMSDistributionDealer networke-CommerceServices
200+Modules migrated
10+Business divisions
−82%Average controller size
~20 yrsProduction system age
9 technical migration challenges, solved
Each challenge was handled with a documented, repeatable pattern, which is how we keep certainty at enterprise scale.
01
Action mapping conversion
150+ Struts XML files
Annotation-based Spring MVC controllers
02
DispatchAction decomposition
reqCode dispatch pattern
Clean @GetMapping / @PostMapping methods
03
FormBean migration
Framework-coupled ActionForms
POJOs bound with @ModelAttribute
04
Session state preservation
Multi-step session workflows
Behaviour kept intact during transition
05
Database layer restructuring
Custom JDBC helper classes
JPA EntityManager with native queries
06
Connection management
DatabaseDelegate + JNDI
@Transactional declarative boundaries
07
Suggest-action consolidation
3–5 suggest classes per entity
One @ResponseBody method per controller
08
Multi-division configuration
10+ division filter chains
Spring Boot auto-configuration
09
Transaction integrity
Manual commit() in finance flows
Declarative @Transactional
Case study results
Measurable improvement across every architecture dimension.
MetricBefore (Struts)After (Spring Boot)
Java versionLegacy JDK (pre-17)Java 17 LTS (10yr+ support)
Framework supportStruts 1.x, end-of-lifeSpring Boot 3.5, actively supported
Avg. controller size2,248 lines~400 lines (−82%)
XML configuration160 KB+ across 150+ files0, fully annotation-driven
Future readiness, built into the foundation
Every modernized platform we deliver opens up these capability paths, none of which needs another re-architecture.
API enablement
REST endpoints, mobile back ends and partner portals
Cloud deployment
Docker/Kubernetes-ready, managed databases, auto-scaling
CI/CD automation
Automated testing and blue-green deployments
UI modernization
React, Angular or Vue front ends, PWA, mobile-first
AI & analytics
ML pipelines, demand forecasting, natural-language interfaces
Technology expertise
The modern stack your platform lands on.
We recommend the target stack during the assessment, based on your team, workloads and ecosystem, not on our preference.
Back end
JavaSpringSpring BootNode.jsNestJS
Front end
ReactAngularVue.jsTypeScript
Databases
OraclePostgreSQLMySQLSQL ServerMongoDB
Cloud & DevOps
AWSAzureGoogle CloudDockerKubernetesCI/CD
Why Techno Genesis
Deep enterprise modernization engineering.
5Modernization tracks
18Reusable migration patterns
0Business disruption
CI/CDDeployment ready
Security, RBAC and audit-ready logging included as standard
Proven enterprise delivery
A 20-year-old, multi-division ERP moved to Spring Boot 3.5. This is production work, not a lab exercise.
Module-wise methodology
Legacy and modern systems run side by side, so daily operations continue throughout the transformation.
Full-stack breadth
Java, Spring, Node.js, NestJS, React, Angular and Vue, across multiple databases and all major clouds.
Documented patterns
Every transformation follows a repeatable, reviewed pattern, so risk stays contained as the scope grows.
Business logic preserved
Stored procedures, URL contracts and critical workflows keep working, with nothing re-invented.
Future enablement built in
API, cloud, mobile and AI readiness come with the target architecture, with no second re-architecture.
Our modernization practice is built for enterprise programmes: ERPs and business-critical, multi-module systems. We partner with CIOs, CTOs and application owners rather than taking on small one-off apps.
We modernize legacy Java (Struts, JSF, J2EE, servlet/JSP, older Spring), dated front ends (JSP, jQuery, AngularJS) and ageing databases and infrastructure. Targets include Java 17/21 with Spring Boot, Node.js and NestJS on the back end; React, Angular or Vue on the front end; your choice of database; and AWS, Azure or Google Cloud.
No. We migrate module by module, with the legacy system running in parallel. Each module switches over only once it has been validated, so day-to-day operations are not interrupted.
Yes. We convert schemas and stored procedures, migrate the data with reconciliation and validation, and cut over in phases with a rollback plan. Where it makes sense, we keep your existing database and modernize the application around it.
Yes. We assess each workload and choose whether to rehost, re-platform or refactor it for AWS, Azure or Google Cloud. That comes with containers, infrastructure as code, CI/CD pipelines and monitoring.
It depends on your team, workload and ecosystem. Java with Spring Boot suits transaction-heavy enterprise back ends and Java-skilled teams. Node.js with NestJS suits I/O-heavy services and teams standardizing on TypeScript. We recommend a stack during the assessment, and the two can coexist.
Our ERP modernization ran in phases over 26–52 weeks, and most enterprise programmes are in that range depending on scope. Value is delivered phase by phase, and phased fixed-price delivery is available.
We start with a discovery and assessment of your application, data, integrations and infrastructure. That produces a module-wise roadmap and business case, so together we can define Phase 1.
Running on end-of-life technology?
Let's define Phase 1 of your modernization together.
Start with an assessment of your application, data and infrastructure. You get a module-wise roadmap, a risk map and a business case your leadership can act on.
At Techno Genesis, we’re passionate about crafting digital solutions with the latest technology, ensuring our clients stay ahead and embrace the future with confidence and innovation.
#Together, we shape a brighter tomorrow.
Let’s create a legacy of greatness, together.
Let's Talk
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