Migrating Core Microservices
Migrating and refactoring 43+ critical microservices while building a standardized DevOps platform
Migrating Core Microservices
Migrating and refactoring 43+ critical microservices while building a standardized DevOps platform
“It's great to see how stable Production is now, especially knowing how much effort went into testing, fixing, and stabilizing things in Pre-Prod. The attention to detail and teamwork throughout the process made a huge difference.”
- Simona P., Product Manager, Global Wholesale Distribution Giant
The Challenge
A global wholesale and food service distribution giant, supported by Wipro, needed to migrate and modernize a complex portfolio of over 150 interdependent microservices built over several years to a secure Russian Cloud (Cloud-RU).
The engineering team faced significant technical debt across 43+ core services: hundreds of deprecated Java, Node, and Maven packages, outdated Docker base images, broken CI/CD pipelines, hard-coded configurations, fragmented secrets management, and inconsistent Kafka integrations. Many services required manual deployment and lacked proper observability.
The goal was to migrate the full portfolio to a cloud-native platform while eliminating legacy dependencies, stabilizing delivery pipelines, and enabling developer teams to deploy confidently and independently—all within an aggressive timeline.
The Solution
Topcoder partnered with Wipro as a specialized engineering team to execute a comprehensive migration and platform modernization effort in less than five months.
The team reverse-engineered legacy codebases to understand complex dependency structures, refactored hundreds of obsolete packages, rebuilt Docker images, eliminated vulnerable libraries, and stabilized testing frameworks. Each of the 43+ core services underwent deep remediation before migration, with the full 150+ microservices portfolio following a standardized migration path.
A unified DevOps platform was established with template-based GitLab CI/CD pipelines, automated testing, secure artifact management via GitLab Registry (replacing legacy Artifactory), and governance controls. Kubernetes manifests were generated for each service, integrated with External Secrets and Vault, and validated through structured health checks.
Service-level stabilization was performed across 8+ critical services, including Kafka reconfiguration, multi-database mapping, Redis integration, namespace-aware pipeline refactoring, and developer enablement through training sessions and troubleshooting support. The team provided night and weekend coverage, code-level debugging, and beyond-scope contributions to ensure delivery continuity.
43+
Critical Services Migrated
3
Cloud Clusters Migrated
<5
Months
3
Members
The Impact
The collaboration between Wipro and Topcoder delivered a modernized, scalable platform that eliminated legacy risks and accelerated delivery:
150+ microservices successfully migrated to Cloud-RU, including 43+ core services with standardized deployment processes
Record-time execution achieving full end-to-end migration and modernization in less than five months
Legacy supply-chain risks eliminated through Artifactory-to-GitLab migration and dependency modernization
Reliable CI/CD platform with template-based pipelines, automated validation, and rollback mechanisms
Improved developer productivity through standardized tooling, training, and faster onboarding
Reduced operational risk with enhanced monitoring, secure secret management, and audit readiness
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Achieve high-quality outcomes with Topcoder.