Automotive & EV
Smart IT solutions for connected and electric mobility.
Explore MoreWe migrate legacy integration platforms to MuleSoft and modernise existing Mule applications — covering Mule 3 to Mule 4 migration, legacy ESB and middleware replacement, on-premise to CloudHub migration, and complete integration estate modernisation with improved architecture, error handling, and governance.
Every type of MuleSoft migration and modernisation — from Mule 3 to 4 upgrades through legacy ESB replacement and full integration estate modernisation.
We migrate existing Mule 3 applications to Mule 4 — rewriting flows using modern Mule 4 patterns, migrating MEL to DataWeave 2.0, replacing deprecated components, and achieving full Mule 4 compatibility with improved error handling.
We replace legacy integration middleware — IBM DataPower, Oracle OSB, TIBCO BusinessWorks, WSO2, MicroFocus — with MuleSoft Anypoint Platform — preserving integration functionality while gaining API-led architecture, modern governance, and cloud deployment.
We migrate existing on-premise Mule runtimes to CloudHub 2.0 or Runtime Fabric — reconfiguring properties, credentials, connectivity, and monitoring for cloud-native deployment without functional changes.
For existing Mule 4 codebases with technical debt — we refactor non-bulkified flows, improve error handling, add MUnit test coverage, modernise DataWeave transformations, and align to current API design standards.
We redesign existing integration architectures — replacing point-to-point patterns with API-led connectivity, introducing Process API reuse, and restructuring monolithic flows into composable, testable modules.
We upgrade security configurations in existing Mule applications — migrating to OAuth 2.0, adding API Manager policies, implementing secrets management, and achieving current security and compliance standards.
Every type of MuleSoft migration — from version upgrades through legacy ESB replacement and architectural modernisation.
Full Mule 3 to 4 migration — MEL to DataWeave 2.0, deprecated component replacement, error handling refactoring, and MUnit test suite development.
Replacing IBM DataPower with MuleSoft API Manager and Mule flows — preserving XSLT transformations, WS-Security policies, and routing logic.
Oracle Service Bus to MuleSoft migration — business service, proxy service, and pipeline migration to Mule flows with API-led architecture.
TIBCO BusinessWorks and EMS to MuleSoft migration — process migration, JMS to Anypoint MQ, and property/config migration.
Mule runtime on-premise to CloudHub 2.0 migration — configuration, credentials, connectivity, and CI/CD pipeline reconfiguration.
WSO2 ESB and API Manager to MuleSoft migration — synapse mediators to Mule flows and API governance migration.
Basic auth and API key to OAuth 2.0 migration, secrets manager integration, and API Manager policy implementation.
Identifying and refactoring performance bottlenecks — N+1 query patterns, synchronous chains, and large payload handling.
A structured delivery methodology that minimises risk and ensures measurable progress at every stage of your MuleSoft engagement.
We audit every existing integration — documenting functionality, data flows, error handling, dependencies, and technical debt — producing a complete migration inventory with effort estimates.
We design the migration strategy — phasing by business criticality, technical dependency, and risk — with a parallel operation approach ensuring zero production downtime throughout.
Integrations rebuilt in Mule 4 in prioritised phases — with full MUnit test coverage, CI/CD pipelines, and functional equivalence testing against the legacy platform in sandbox.
New Mule 4 integrations run in parallel with legacy for a validation period — results compared, discrepancies investigated, and business users confirm equivalence before cutover.
Traffic switched from legacy to new platform — DNS or load balancer change with instant rollback capability. Legacy system kept available for 48 hours post-cutover.
Legacy platform decommissioned after stability confirmed — licences cancelled, infrastructure released, and full migration documentation produced for your records.
What sets Rackwave apart from generic MuleSoft partners — and why our clients consistently rate us 4.9 stars.
Parallel operation strategy ensures production is never at risk — legacy and new platforms run simultaneously until business users confirm equivalence.
We do not consider a migration complete until automated tests confirm every migrated integration produces identical outputs to the legacy version.
Migration is an opportunity to address accumulated technical debt — we improve error handling, add MUnit coverage, and introduce API-led patterns as part of the migration.
Replacing a legacy ESB with MuleSoft on CloudHub typically reduces infrastructure and licence costs while improving observability, scalability, and developer productivity.
Every consultant and developer holds active MuleSoft certifications — not expired credentials. Certified expertise assigned to every engagement.
MuleSoft Integration Architect
MuleSoft Platform Architect
MuleSoft Developer Level 1
MuleSoft Developer Level 2
MuleSoft API Design Associate
MuleSoft API Associate
Salesforce Integration Architect
MuleSoft Catalyst
At Rackwave Technologies, we deliver tailored IT Consulting Services across a wide range of industries. Our industry-focused approach ensures that every solution aligns with specific operational challenges, compliance requirements, and growth objectives—rather than generic technology implementations.
IT systems for real-time tracking and efficient operations.
Explore MoreZero-downtime migrations from legacy ESB platforms and Mule 3 to modern MuleSoft Anypoint Platform — with improved architecture, security, and performance.
Migrated 45 Oracle Service Bus integrations to MuleSoft Anypoint Platform — redesigned as API-led architecture with System and Process APIs. Zero production downtime via 6-week parallel operation period.
Migrated a 60-application Mule 3 estate to Mule 4 — MEL to DataWeave 2.0, deprecated component replacement, and MUnit test suite from zero to 80% coverage. Performance improved by 55%.
Migrated 35 Mule applications from on-premise Mule runtimes to CloudHub 2.0 — including VPC configuration, secrets migration, CI/CD reconfiguration, and monitoring setup. Completed in 8 weeks.
“Rackwave Technologies has significantly improved our marketing performance while providing reliable cloud services. We’ve been using their solutions for a while now, and the experience has been seamless, scalable, and results-driven.”
David Larry
Founder & CEORated 4.9★ across Clutch, Google, and Trustpilot for MuleSoft delivery quality and client outcomes.
"Rackwave designed our entire MuleSoft API-led architecture from scratch. The consulting engagement was thorough — they understood our systems better than our own team after two weeks of discovery. Implementation followed the design exactly."
"We had a broken MuleSoft implementation from a previous partner. Rackwave assessed it, delivered a remediation roadmap in two weeks, and fixed everything in six weeks. Zero integration failures since go-live."
"The MuleSoft integration hub Rackwave built connects eight of our systems in real time. Order data flows from Shopify through to SAP and our 3PL without any manual intervention. It just works."
Common questions about MuleSoft Migration & Modernisation — answered directly.
Yes. Mule 3 reached end of extended support and is no longer receiving security patches. Mule 4 provides significant improvements: DataWeave 2.0 for data transformation, improved error handling with Try scopes, better support for streaming and large payloads, reactive execution engine for improved performance, and full CloudHub 2.0 compatibility. The sooner you migrate, the less technical debt accumulates in the Mule 3 codebase.
A small estate of 10 to 15 Mule 3 applications typically takes 6 to 8 weeks. A medium estate of 30 to 50 applications takes 12 to 16 weeks. A large estate of 60+ applications takes 20 to 30 weeks in phased delivery. Timeline depends on code quality — well-structured Mule 3 code migrates faster than complex, undocumented MEL-heavy flows. We conduct a migration assessment to provide an accurate timeline estimate.
Zero-downtime migration risk is managed through parallel operation — we run the new MuleSoft platform in parallel with the legacy system, with both processing the same transactions (or with a traffic split), and compare outputs before cutting over. The rollback plan is defined and tested before go-live. Legacy systems are kept available for 48 hours post-cutover. We have delivered 50+ migrations with zero production incidents using this methodology.
Yes. We have experience migrating from IBM DataPower, Oracle Service Bus, TIBCO BusinessWorks, WSO2 ESB, MicroFocus (formerly HP) Integration Server, and custom middleware platforms to MuleSoft. Each platform has different migration patterns — we document the complete integration inventory, design functional equivalents in Mule 4, and validate equivalence through automated testing before production cutover.
API consumers are not disrupted during migration. We maintain existing API endpoints throughout the migration — the new MuleSoft implementation runs on the same URL, same authentication, and same response format as the legacy platform. Consumers notice zero change in behaviour. After cutover is confirmed stable, we communicate any planned breaking changes (version upgrades) with advance notice and a migration guide.
The migration assessment covers: complete integration inventory documentation (flows, connectors, data mappings, error handling), technical debt identification (MEL complexity, deprecated components, missing test coverage), effort estimation per application, risk rating by integration criticality, recommended migration sequencing, and total timeline and effort estimate. Assessment typically takes 1 to 2 weeks depending on estate size.
Yes. Migration is the right time to address architectural issues — and we recommend doing so. We introduce API-led connectivity patterns, add MUnit test coverage that was missing, improve error handling, implement API Manager policies, and align to current MuleSoft design standards during migration. The cost of architecture improvement during migration is significantly lower than doing it as a separate engagement.
MEL (Mule Expression Language) to DataWeave 2.0 is the most technical aspect of Mule 3 to 4 migration. We have developed automated migration tooling that converts common MEL expressions to DataWeave, and our team is expert in manual migration of complex MEL logic. All migrated DataWeave transformations are unit tested against expected outputs before going live.
Migration cost depends on estate size, code quality, and architectural changes required. A 15-application Mule 3 to 4 migration with minimal architectural changes typically costs less than a full new MuleSoft implementation of equivalent scope. A legacy ESB replacement with architecture redesign costs more due to the additional design work. We provide a fixed-price proposal after the assessment phase.
Yes. Post-migration support is available as a standalone support engagement or managed services package. We provide hypercare support for two weeks after every production cutover, followed by ongoing support covering monitoring, bug fixing, and MuleSoft version updates.