Bank of America
Application Programmer III · Plano, Texas
Building and modernizing backend services in Java and Spring Boot.
- Java
- Spring Boot
नमस्ते 🙏 I'm a backend engineer from Nepal, based in Plano, Texas
NarayanBhattarai
I build event-driven systems
Five years of shipping backend systems for healthcare and enterprise teams in Kathmandu, then a master's in the US focused on distributed systems and machine learning. Now at Bank of America.
0years in production backends
0top performance gain delivered
0Star Performer of the Year
Experience
Career log
My career as a commit history, newest first. Degrees are branches that merged back into my work.
University of South Dakota
MS, Computer Information Science
Merged branch ms-usd into main: distributed systems, reinforcement learning, computer vision, pattern recognition and information retrieval.
Started my master's in the US
Imark Pvt. Ltd.
Full Stack Developer · Kathmandu
- Built event-driven microservices over Kafka; integrated enterprise systems with Apache Camel.
- Developed Spring Boot and Scala services, REST/SOAP APIs and persistence layers.
- Added Elasticsearch search for low-latency queries; ran Hive and Hadoop ETL at scale.
- Automated delivery with Jenkins and Kubernetes; monitored production with Azure Monitor.
- Java
- Spring Boot
- Kafka
- Scala
- Elasticsearch
- Kubernetes
Danphe Health
Software Developer · Kathmandu
- Designed service-oriented and microservice architectures for hospital-management backends.
- Built REST and SOAP APIs with contracts documented in Swagger/OpenAPI.
- Delivered 30–40% performance gains through concurrency tuning and refactoring.
- Set up CI/CD pipelines that automated builds, tests and deployments.
- C#
- .NET Core
- SQL Server
- OpenAPI
- Azure DevOps
IOE Thapathali Campus
B.E., Electronics & Communication · Tribhuvan University
Merged branch be-ioe: data structures, algorithms, databases, operating systems and networks.
Started engineering school
Initial commit: Hello, world 🇳🇵
Projects
Featured work
Things I have designed and built end to end: microservices, AI assistants, full-stack apps and one very Nepali board game. Every card links to the code.
E-commerce platform · Java
KinaNow
An Amazon-style shop built as event-driven microservices: auth, catalog, cart, pricing, orders, inventory, payments, reviews and notifications behind a Spring Cloud Gateway, with orders flowing through Kafka events.
- Spring Boot 3
- Spring Cloud
- Kafka
- PostgreSQL
- MongoDB
- Redis
- Angular
- Docker
Legal AI · RAG
BidhiBot विधिBot
A self-hosted legal assistant for Nepal's constitution and laws. Upload PDFs, ask in Nepali or English, and get answers grounded in the documents with page citations, running fully on a local LLM.
- Spring Boot
- pgvector
- Ollama
- RAG
Full-stack news portal
News Portal
A complete news platform with an admin CMS, rich-text articles, categories, comments, Google and JWT sign-in, live chat over SignalR, and Nepali date support.
- ASP.NET Core
- EF Core
- PostgreSQL
- SignalR
- React
Audiobook creator · PWA
KavyaSwar काव्यस्वर
Turns poetry and books into narrated audiobooks: upload a PDF, record a voiceover for each page in the browser, and share a synced reading experience.
- React
- TypeScript
- Supabase
- PWA
Reinforcement learning
BaghChal AI
Agents for Nepal's tigers-and-goats game trained through self-play with Q-Learning, SARSA, Expected SARSA and a PyTorch DQN.
- Python
- PyTorch
- RL
Also built during my master's
- Hybrid semantic search BM25 + dense embeddings, evaluated with nDCG and MAP
- Proteomics chatbot .NET API + Angular + local LLM
- Brain tumor segmentation U-Net and Attention U-Net on MRI
- GastroVision endoscopic image classification
Skills
Tech stack
The tools I reach for to design, build and run backend systems.
Languages
Java, C#, Python, Scala, SQL, TypeScript, JavaScript
Frameworks
Spring Boot, Spring, Hibernate, .NET Core, ASP.NET Core, Entity Framework
Architecture
Microservices, event-driven design, SOA, REST, SOAP
Messaging
Kafka, RabbitMQ, Apache Camel
Cloud & DevOps
Azure, AWS, Docker, Kubernetes, Jenkins, Azure DevOps
Data
PostgreSQL, SQL Server, MySQL, Oracle, MongoDB, Elasticsearch
Quality
TDD, BDD, xUnit, NUnit, SonarQube
Security
OAuth 2.0, JWT, role-based access control
Let's build
something reliable
Want to talk backend engineering, collaborate on something, or just say नमस्ते? Email is the fastest way to reach me, or open my terminal and type connect.