May 2022 → Jul 2022
Software Engineering Intern
An e-commerce transaction path across React and Spring Boot, with a 30% query-performance win underneath it.
- Type
- Engineering
- Where
- Sigma InfoSolutions
- When
- May 2022 → Jul 2022
- Duration
- 2 mo
- Location
- On-site
The brief
My first real engineering internship, on an e-commerce product with a React front end and a Spring Boot back end talking to both PostgreSQL and MongoDB through Hibernate.
The measurable result was on the data side: 30% better query performance for the financial analytics views.
What I did
- Improved an e-commerce transaction feature across React and Spring Boot, enhancing the interface and the backend APIs behind it.
- Elevated PostgreSQL and MongoDB access through Hibernate, optimising data transactions and improving query performance by 30% for financial analytics.
- Extended AWS infrastructure across S3, EC2 and RDS for new features and monitoring; maintained CI/CD through Jenkins and Kubernetes.
Measured
30%query performance
2databases via Hibernate
S3 · EC2 · RDSAWS surface
Architecture
In hindsight
Putting one ORM over two very different stores made the code look uniform and the performance anything but. I'd keep the document access explicit rather than pretending both were the same shape.
Stack
ReactSpring BootPostgreSQLMongoDBHibernateAWSJenkinsKubernetes