Can Synora Soft modernize legacy Windows .NET Framework apps to run on Linux containers?

Yes. We specialize in porting .NET Framework 3.5/4.x codebases to cross-platform .NET 8/9. We refactor Windows-specific dependencies (such as WCF or IIS modules) to modern gRPC, ASP.NET Core, and REST endpoints, enabling deployment on lightweight Linux containers and Kubernetes.

How do you preserve existing business rules when legacy code lacks documentation?

We utilize static code analysis tools coupled with AI-assisted code parsing to reverse-engineer business logic into human-readable specifications and automated behavioral test cases. These tests run against the legacy system to establish baseline ground truth before any refactoring begins.

What is Continuous Quality Engineering (CQE)?

CQE shifts quality left from a post-development manual testing phase into continuous automated verification throughout the developer workflow. Every code commit triggers automated static analysis, security scanning, unit tests, and consumer-driven API contract tests before merge approval.

Enterprise Application Evolution

Deconstruct Monoliths & Modernize with Cloud-Native Agility

We migrate legacy monolithic systems into modular cloud-native microservices, .NET Core on Azure, modern Java Spring Boot architectures, and Continuous Quality Engineering (CQE) pipelines.

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Legacy System Friction

Critical Modernisation Bottlenecks We Eliminate

Technical debt, brittle monoliths, and undocumented legacy codebases paralyze feature velocity and inflate maintenance costs.

Challenge 01

Tightly Coupled Monolithic Architectures

Single-codebase monoliths require full application re-testing for minor bug fixes, causing frequent release collisions.

Business Impact:Sprint cycles stretched to 6-8 weeks with high risk of catastrophic deployment rollbacks.

Challenge 02

Legacy Frameworks & Outdated Runtimes

Applications trapped on deprecated .NET Framework 4.x or legacy Java EE runtimes cannot exploit modern containerization or cloud elasticity.

Business Impact:Ballooning hosting license fees and severe security vulnerabilities from unpatched frameworks.

Challenge 03

Lack of Automated Test Coverage

Manual regression testing cycles create quality bottlenecks and fear of refactoring critical business logic.

Business Impact:High defect escape rate to production and engineering turnover due to developer frustration.

Challenge 04

Knowledge Drain on Legacy Core Systems

Original architects and developers have retired or departed, leaving mission-critical systems with zero current documentation.

Business Impact:Exorbitant risk of outage whenever core transaction processing logic must be modified.

Engineered for Velocity

Enterprise Modernisation Capabilities

Architectural blueprints designed for incremental decoupling, continuous quality, and zero business disruption.

Risk-Free MigrationCloud Native

Domain-Driven Refactoring (Strangler Fig Pattern)

Incrementally decompose monolithic applications into cloud-native microservices without risky 'big bang' rewrites, ensuring continuous business availability.

Architectural Deliverables:

Event-driven strangler fig routing via API gateways and feature flags

Bounded context domain modeling isolating distinct business capabilities

Database decomposition using Change Data Capture (CDC) and outbox patterns

Zero downtime cutovers with automated traffic-shifting reverse proxies

STRANGLER FIG ARCHITECTUREZERO DOWNTIME CUTOVER

Modern .NETCloud Native

.NET Core & Microsoft Azure Engineering

Upgrade legacy .NET Framework applications to cross-platform .NET 8/9 running on Linux containers and Azure App Services with up to 3x performance gains.

Architectural Deliverables:

Automated code scanning identifying deprecated APIs and NuGet dependencies

Containerization using lightweight distroless Linux container images

Native Azure cloud integration (Azure SQL, Cosmos DB, Azure Service Bus)

High-throughput async processing leveraging modern C# runtime optimizations

STRANGLER FIG ARCHITECTUREZERO DOWNTIME CUTOVER

Modern JavaCloud Native

Java Spring Boot & Cloud-Native Services

Modernize legacy Java EE / WebLogic stacks into reactive Spring Boot and Quarkus microservices running on Kubernetes with GraalVM native image compilation.

Architectural Deliverables:

Sub-second startup times and 80% reduced memory footprint via GraalVM

Reactive non-blocking I/O architectures powered by Project Loom and Spring WebFlux

Modern API contracts using OpenAPI 3.0 and gRPC for high-throughput RPC

Resilience patterns (Circuit Breakers, Bulkheads, Retries) via Resilience4j

STRANGLER FIG ARCHITECTUREZERO DOWNTIME CUTOVER

Quality AutomationCloud Native

Continuous Quality Engineering (CQE) & Test Automation

Embed automated contract testing, performance load testing, and AI-assisted visual regression test benches directly into developer pull request pipelines.

Architectural Deliverables:

Consumer-driven contract testing via Pact stopping breaking API changes

Automated end-to-end regression suites built on Playwright and Cypress

Continuous performance benchmarking using k6 integrated into CI/CD gates

Zero-defect escape rates through comprehensive code coverage instrumentation

STRANGLER FIG ARCHITECTUREZERO DOWNTIME CUTOVER

Modernisation Toolset

Modern Application Technologies & Runtimes

We refactor legacy codebases into modern cloud-native architectures.

Platform

.NET 8 / 9 Core

Cross-Platform

Platform

Java 21 & Spring Boot

Cloud Native

Cloud

Microsoft Azure App Service

Services Provider

Platform

GraalVM Enterprise

Native Image

Cloud

Docker & Linux Containers

Containerization

Platform

gRPC & OpenAPI 3.0

High-Throughput RPC

Engineering

Playwright & Cypress

CQE Automation

Data

Kafka & Azure Service Bus

Event-Driven

Data

PostgreSQL & Azure SQL

Relational Modern

Cloud

ArgoCD & Kubernetes

GitOps Native

Modernisation Outcomes

Quantified Value Delivered Across Modernisation Programs

Accelerate feature velocity, slash hosting overhead, and eradicate technical debt.

Release Velocity

Microservices with automated CI/CD replace quarterly monolithic release trains.

Infrastructure Compute Cost

Achieved via containerization and lightweight .NET Core / GraalVM runtimes.

0.00%

Zero-Downtime Migration

Strangler Fig pattern ensures uninterrupted transaction processing during refactoring.

0%+

Automated Test Coverage

Comprehensive unit, integration, and contract test suites in developer CI.

Modernisation FAQs

Frequently Asked Questions

Insights into our legacy migration approach, timeline, and risk containment.

We strictly avoid all-or-nothing rewrites. Instead, we implement the Strangler Fig pattern: placing an API gateway in front of the monolith and slicing out high-value business domains one by one into independent microservices. The monolith continues handling legacy workflows until all domains are successfully modernised.

Modernisation Strategy Call

Deconstruct Technical Debt & Refactor Your Core Applications

Connect with our Principal Software Architects to evaluate monolithic decomposition, .NET Core / Java upgrades, or CQE test automation.

Eradicate Technical Debt

Ready to Accelerate Your Application Velocity?

Speak with our principal refactoring engineers to design your risk-free application modernisation roadmap.

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