React.js
For building modular, component-based, responsive UIs. Ideal for reimagining clunky legacy UIs with dynamic, modern interfaces.
TypeScript
Adds static typing to JavaScript, making large codebases easier to maintain and refactor.
Node.js , Express.js, Spring Boot (Java)
Scalable and widely supported backend frameworks. Easy to wrap legacy logic into microservices or API gateways
.NET Core / ASP.NET Core
Great for enterprises modernizing from older .NET Framework or Windows-based systems.
Python (FastAPI / Django)
Useful for migrating legacy scripting logic or integrating AI/ML-based features.
PostgreSQL or MySQL
Open-source RDBMS, supports migrations from legacy Oracle, MS SQL, DB2.
MongoDB
Schema-less NoSQL DB, excellent for apps needing flexible data models.
Apache Kafka or Redis Streams
For real-time event-driven migration and legacy data stream handling.
Apache Arrow
Language-independent columnar memory format for flat and nested data, organized for efficient analytic operations on modern hardware like CPUs and GPUs.
GraphQL or REST APIs
Simplify integration between legacy and new systems during migration.
gRPC
High-performance communication for microservices, useful in hybrid migration states.
Kubernetes (K8s)
Container orchestration to repackage legacy workloads into manageable microservices.
Docker
Containerization of legacy apps for smoother lift-and-shift or re-platforming.
AWS / Azure / Google Cloud Platform
Core services used:
Lambda / Azure Functions → serverless migration
RDS / Cloud SQL → managed DB migration
S3 / Azure Blob → object storage replacement
GitHub Actions / GitLab CI / Jenkins
Automates deployment pipelines, regression testing, and rollback strategies.
Microsoft Power BI
For strong visualization and dashboard capabilities
Tableau
For powerful data visualization handles large data sets efficiently supports a wide range of data connectors
Looker (by Google)
Web-based platform, Integrate with Google Cloud, strong modeling layer using LookML
SAP BusinessObjects
Enterprise-level reporting and analysis, Deep integration with SAP ERP systems
OAuth2 / OpenID Connect / SAML
For modernizing authentication across applications.
AWS Secrets Manager
Secures secrets, tokens, and credentials.