Hari Sai Kaja
Software Developer
9+ years exp
5+ years ML exp
C++
SQL
Ruby
Rust
C
JavaScript
Lua
PHP
Python
Go
Node JS
TypeScript
Bash
Active 14 days ago
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Overview
Technical skills
Timeline
Roles
Overview
Software engineer with 8+ years building and operating production systems across full-stack development, platform engineering, distributed data, cloud-native infrastructure, and applied AI. Experienced in TypeScript and Python stacks (React, Next.js, NestJS, FastAPI, Flask) with PostgreSQL, Redis, and Kafka, and in CI/CD and cloud deployments to AWS and Kubernetes. Recent work focuses on agentic AI and LLM integrations for 0-to-1 AI products from prototype to production.
Technical skills
C++
SQL
Ruby
Rust
C
JavaScript
Lua
PHP
Python• Junior • 8y+
Go• Junior • 8y+
Node JS• 8y+
TypeScript• Middle • 5y+
Bash• Junior
Ruby
Ruby on Rails
C
Embedded C• 9y+
Lua
NodeMCU• 9y+
Python
Django• 9y+
Flask• 9y+
Beautiful Soup• 7y+
FastAPI• 7y+
Scrapy• 7y+
Node JS
TypeORM
Nest.JS• 5y+
Prisma• 5y+
Databases
Pinecone
MySQL• 9y+
Apache Kafka• 8y+
ElasticSearch• 8y+
Redis• 8y+
Druid• 7y+
PostgreSQL• 5y+
pgvector
Supabase
AI/ML
Gemini
LLM
NLP
Prompt Engineering
RAG
LangChain
Copilot• 5y+
Cursor• 3y+
Claude
Claude Code
LangGraph
Ollama
Frontend
Material UI
Redux
Tailwind CSS
Radix UI
PostCSS
Next.js• 7y+
React.js• 5y+
shadcn/ui• 3y+
Mobile
Clean Architecture
State Management
Firebase• 7y+
DevOps
CI/CD
Datadog
Helm
Platform Engineering
Rest API
Vector
GitLab CI• 9y+
Amazon EC2• 8y+
Ansible• 8y+
AWS• 8y+
Docker• 8y+
Grafana• 8y+
Jenkins• 8y+
Prometheus• 8y+
Hetzner• 7y+
New Relic• 7y+
Nginx• 7y+
Vercel• 7y+
Amazon EKS• 5y+
Blue-Green Deployment• 5y+
DigitalOcean• 5y+
Kubernetes• 5y+
Terraform• 5y+
Azure
GitHub Actions
Progressive Delivery
Web3
Layer 2
Analytics
Plotly
Design
Figma
IoT
MQTT• 9y+
QA
Playwright
Pytest
Jest• 5y+
Timeline
Software Developer
•
Middle
Blue Nucleus / GVSU
•
Full-Time
Architected an AI-driven clinical simulation platform end to end on a Next.js and Supabase (PostgreSQL) stack and piloted it with nursing faculty. Built an agentic AI layer using MCP and LangGraph over Claude and Ollama, with a RAG pipeline grounded in prior cases via pgvector (HNSW). Delivered a faculty review workflow, implemented CI/CD with automated tests, and deployed continuously to AWS and Kubernetes.
Next.js
Supabase
PostgreSQL
LangGraph
Claude
Ollama
pgvector
Kubernetes
AWS
GitHub Actions
Vercel
React.js
Progressive Delivery
Grand Valley State University
Master's Degree •
Applied Computer Science (Cybersecurity, Databases, AI)
Graduate Research Assistant
•
Middle
Grand Valley State University
•
Full-Time
Engineered a lightweight distributed consensus protocol (PoEWAL) for resource-constrained IoHT edge systems and implemented the consensus logic in Go. Built event-driven pipelines across Layer 2 and Layer 3 using Kafka and pub/sub messaging with secure authentication. Delivered an end-to-end Azure cloud-native data pipeline using Data Factory, Blob Storage, and RBAC-secured serverless functions, and created benchmarking automation in Python and Shell.
Go
Python
Bash
Apache Kafka
Azure
Senior Software Engineer
•
Senior
Candy Technologies
•
Full-Time
Modernized an aging PHP/React monolith into a Next.js and NestJS TypeScript architecture and served multiple enterprise clients. Improved performance by migrating the data layer from MySQL to PostgreSQL with Prisma ORM, schema modeling, and query/index optimizations. Built consistent UI with React/Next.js and Tailwind/shadcn, shipped key payroll functionality end to end, and improved delivery using CI testing and AI-assisted development. Managed AWS infrastructure with Terraform and deployed containerized services on EKS while designing OAuth2/JWT/HMAC-based multi-tenant access control.
Next.js
Nest.JS
TypeScript
React.js
Blue-Green Deployment
shadcn/ui
MySQL
PostgreSQLsince 2021
Prisma
Jest
AWS
Amazon EC2
Terraform
Amazon EKS
Kubernetessince 2021
Docker
Copilot
Cursor
Hetzner
DigitalOcean
Data Engineer
•
Middle
NewsClick
•
Full-Time
Ran distributed event-driven Kafka pipelines to power election and COVID-19 dashboards using ETL and KDD workflows. Built FastAPI/Flask REST APIs and React/Next.js dashboards deployed on Vercel for newsroom usage under tight deadlines. Designed a low-latency analytics platform on Apache Druid, tuned queries for sub-second responses, and implemented scraping and ingestion with BeautifulSoup and Scrapy backed by Redis caching and MongoDB/Elasticsearch/Firebase storage. Maintained observability with New Relic and administered Hetzner bare-metal infrastructure with Nginx and Ansible.
Apache Kafka
FastAPI
Flask
React.js
Next.jssince 2019
Vercelsince 2019
Druid
Beautiful Soup
Scrapy
Redis
ElasticSearch
Firebase
New Relic
Nginx
Ansible
Hetznersince 2019
Software Development Engineer
•
Middle
Vitwit Technologies
•
Full-Time
Built backend services and REST APIs in Go alongside a Python and Node.js stack for customer-facing products. Shipped the TaxFriday AI chatbot with a React frontend, Python/Flask and Node.js backend, and owned platform DevOps on AWS including EC2 IAM/CloudWatch and load balancing, plus Docker and Ansible automation and Jenkins-based delivery. Implemented a high-throughput NLP sentiment pipeline using Elasticsearch, Kafka, Redis, and MongoDB, including query and indexing optimizations and caching for read-heavy paths. Embedded DevSecOps scanning into CI and used Prometheus/Grafana for observability with on-call operations.
Gosince 2018
React.jssince 2018
Pythonsince 2018
Flask
Node JS
AWSsince 2018
Amazon EC2since 2018
Jenkins
Dockersince 2018
Ansiblesince 2018
ElasticSearchsince 2018
Apache Kafkasince 2018
Redissince 2018
Prometheus
Grafana
Trainee Engineer
•
Junior
Jochebed Tech Solutions (JTS)
•
Full-Time
Built a full-stack Django/Flask inventory management system using MySQL and GitLab workflows, including an Android client for real-time order tracking and automated reporting. Developed an IoT pollution-monitoring dashboard using NodeMCU telemetry and implemented edge ingestion in Embedded C over MQTT. Supported the delivery and maintenance of features by converting stakeholder workflows into working functionality within a small production team.
Django
Flasksince 2017
MySQLsince 2017
GitLab CI
NodeMCU
Embedded C
MQTT