Backend & APIs
Spring Boot services with a strict layered contract — validation at the edge, business rules in the domain, and exceptions handled once instead of everywhere.
Spring BootRESTSpring Security
Java Full Stack Engineer · Boeing
Gyanaranjan Panda
Java on the backend. React on the front. Cloud underneath.
Software Engineer at Boeing, four and a half years into building the backend half properly and the front-end half so it does the backend justice — Spring Boot microservices, Kafka event pipelines and React interfaces, deployed on AWS and GCP and built to hold up once real traffic arrives.
Java example: public final class Order {
private final OrderId id;
private OrderStatus status;
private Instant cancelledAt;
public void cancel(Clock clock) {
if (status == OrderStatus.SHIPPED) {
throw new OrderAlreadyShipped(id);
}
if (status == OrderStatus.CANCELLED) {
return; // cancelling twice is not an error
}
status = OrderStatus.CANCELLED;
cancelledAt = clock.instant();
}
}
4.5
Years shipping
4
Engineering roles
10+
Microservices built
2
Flagship platforms
01 What I do
Systems that stay readable long after release day.
Event-driven systems
Kafka pipelines where consumers are idempotent by design, because at-least-once delivery means duplicates are the contract, not an edge case.
KafkaPub/SubMicroservices
Data & performance
JPA and SQL tuned deliberately — projections over entity hydration, batch fetching over N+1, and query counts asserted in tests.
PostgreSQLHibernateMongoDB
Cloud & delivery
Services shipped to AWS and GCP through Docker-based CI/CD — managed queues, container deploys, and infrastructure a service can actually be handed to.
AWSGCPDockerCI/CD
02 Selected work
Connect Application
B2B Pharmacy & Healthcare Platform · CureBay
A multi-tenant B2B platform where pharmacies order stock, patients book consultations, and prescriptions arrive as scanned images that have to become structured orders.
JavaSpring BootAngularGCPSpring Data JPAMySQL+3
FDS — Financial Document Store
Financial Document Management System
A document system for regulated financial workflows, where every read and write is an auditable event and duplicate processing is a compliance problem, not a bug report.
JavaSpring BootApache KafkaPostgreSQLFeign ClientSpring Data JPA+2
03 Stack
Languages
JavaJavaScriptSQL
Backend
Spring BootSpring MVCSpring SecurityJPA / HibernateREST APIs
Cloud
AWSGCP
Front-end
ReactAngularResponsive UI
Messaging
Apache KafkaGoogle Pub/Sub
Data
PostgreSQLMySQLMongoDB
04 From the blog
05 Availability
Open to work
Software EngineerJava Full Stack + AWS
Looking for backend-heavy full-stack work — Spring Boot services, event-driven systems and the cloud infrastructure they run on.
- Focus
- Backend & distributed systems
- Stack
- Java · Spring Boot · AWS
- Base
- India · Hybrid or remote
- Reply
- Usually within a day