Skills · Tech stack
Tools I've used in production.
Not a wish list — every core technology below maps to the platforms where I've shipped it.
01Production matrix
Where each skill was used
| Technology | ColumbiaDigital Commerce | ZionsBanking | MedicaHealthcare | ICICIBanking | SonataEnterprise |
|---|---|---|---|---|---|
| Java & Spring Boot | |||||
| Microservices & REST | |||||
| Apache Kafka | |||||
| React & TypeScript | |||||
| Spring Security · OAuth 2.0 · JWT | |||||
| AWS | |||||
| Microsoft Azure | |||||
| Docker | |||||
| Kubernetes (EKS / AKS) | |||||
| AI/ML integration | |||||
| PostgreSQL / Oracle |
02Full toolkit
Everything in the toolbox
Languages
6Java 8/11/17/21
J2EE
JavaScript
TypeScript
SQL
Python
Backend
8Spring Boot
Spring MVC
Spring Data JPA
Hibernate
Microservices
REST APIs
JPA
JDBC
Frontend
6React.js
Redux
JavaScript
TypeScript
HTML5
CSS3
Messaging & Integration
4Apache Kafka
Event-Driven Architecture
REST
Asynchronous Processing
Cloud
12AWS
Microsoft Azure
AWS EKS
ECS
S3
Lambda
API Gateway
RDS
CloudWatch
Azure AKS
Azure App Service
Azure Key Vault
AI / ML
6AI/ML Integration
ML Services
Recommendations
Personalisation
Anomaly Detection
Predictive Analytics
Databases
4PostgreSQL
Oracle
MySQL
SQL
Security
5Spring Security
OAuth 2.0
JWT
RBAC
API Security
DevOps & Containers
6Docker
Kubernetes
Jenkins
Azure DevOps
CI/CD
Git
Testing
5JUnit
Mockito
Unit Testing
Integration Testing
API Testing
Ways of working
5Agile
Scrum
Code Review
Production Support
Mentoring