Senior Full-Stack Lead Engineer · open to new roles
Distributed systems &ML platforms, shipped.
// profile signal
I'm Sai Harsha Kaja, a Senior Full-Stack Lead Engineer with 9+ years designing distributed systems, cloud-native platforms, and enterprise applications — Java / Spring Boot and Angular / React across AWS and Azure, with production ML serving on Kubernetes and the platform primitives (auth, rate limiting, metering, multi-tenant isolation) that keep them safe at scale.
9+ yrs
distributed systems
100K+
events/day @ 99.9%
ML
serving on kubernetes
AWS + Azure
multi-cloud · 4 certs
platform · control-plane
ml-serving/prodhealthy
event rate
100K/d
reliability
99.9%
deploys
-50%
harsha@platform ~
❯ kubectl get deploy -n ml-serving
NAME READY UP-TO-DATE AGE
inference-api 6/6 6 41d
model-gateway 3/3 3 41d
event-consumer 4/4 4 18d
❯ cat profile.yaml
role: Senior Full-Stack Lead Engineer
stack: Java · Spring Boot · Angular/React · Kafka
cloud: AWS (EKS) · Azure (AKS/OpenShift)
focus: platforms, ML serving, reliability
❯
01.Stack & tools
Languages
JavaPythonC#SQLTypeScript
Frontend
AngularReactJavaScriptHTML5CSS3
Backend
Spring BootREST APIsMicroservicesAPI DesignOAuth2 / SAMLRate Limiting
Cloud & Infra
AWSAzureKubernetes (AKS / EKS / OpenShift)DockerService Mesh
Distributed
Apache KafkaAzure Event GridService BusEvent-Driven Architecture
ML Infra
Model ServingInference APIsGPU WorkloadsMLOps PipelinesLLM Runtimes
Data
OracleSQL ServerPostgreSQLMongoDB
Observability & DevOps
Azure App InsightsGrafanaSplunkDistributed TracingJenkinsAzure DevOpsCI/CD
02.Experience
First Command Financial Services Senior Software Engineer
2021 — Present- Architected and owned cloud-native full-stack apps (Java / Spring Boot + Angular / React) on AWS, end-to-end from API design through rollout and operation.
- Deployed and operated ML-based applications on Kubernetes (EKS / OpenShift) — containerized inference services, zero-downtime rollouts, and high-availability SLOs for production ML workloads.
- Built backend services with clear SLOs: OAuth2 / SAML auth, rate limiting, quotas, metering, and multi-tenant isolation for enterprise compliance.
- Built event-driven systems on Apache Kafka processing 100K+ events/day at 99.9% reliability; shipped dashboards, onboarding, and self-serve tooling.
7-Eleven Inc Software Engineer
2018 — 2021- Built and operated cloud-native microservices on AWS supporting scalable, API-driven workloads with defined reliability targets.
- Designed asynchronous, low-latency systems with APIs structured for integration with external AI/ML services and inference endpoints.
- Migrated applications to AWS, cutting costs ~20%, and built CI/CD pipelines that reduced deployment time by 50%.
- Optimized relational (SQL Server / DB2 / PostgreSQL) and NoSQL databases, improving performance 30–50%.
Charter Communications Java Developer
2015 — 2018- Built enterprise applications using Java, Spring, and AngularJS.
- Developed distributed messaging systems with Azure Service Bus and Event Grid, plus batch pipelines for large-scale data processing.
- Improved system monitoring and reliability by ~20%.
MasterCard Java Developer
2014 — 2015- Developed backend financial systems using Java and Spring MVC for enterprise transaction processing.
- Optimized SQL queries and built reusable components; contributed to design and code reviews for scalable applications.
03.Selected impact
100K+
events/day processed at 99.9% reliability on Kafka-based event-driven systems.
50%
faster deployments via CI/CD pipelines on Jenkins & AWS CodePipeline.
30–50%
database performance gains across relational and NoSQL stores.
20%
cloud cost reduction through AWS migration and architecture optimization.
04.Education & certifications
Education
M.S., Software Engineering
University of Houston
B.Tech, Information Technology
Kakatiya University
Certifications
✓AWS Certified DevOps Engineer — Professional
✓AWS Certified Solutions Architect — Associate
✓AWS Certified Cloud Practitioner
✓Oracle Certified Professional: Java SE 11 Developer