SAGAR NEUPANE
Beckley
Summary
Over 10 years of experience in delivering high-availability SaaS solutions, achieving zero-downtime releases and enhancing application performance by up to 150%. Proficient in Django, FastAPI, React, Vue, AI, ML, LLM, cloud migration, and data-driven feature design. Successfully led Agile teams, mentoring 5-8 developers and increasing team velocity by 20%. Committed to clean architecture, CI/CD practices, and user-focused product development.
Overview
12
12
years of professional experience
1
1
Certification
Work History
Senior Full Stack Developer
Haneke Design
FL
09.2021 - 09.2025
- Partnered with client stakeholders to scope & ship 5 data-intensive SPAs; kept a 100 % on-time delivery record.
- Led Shipping CURA (Django + React) end-to-end; added real-time shipment tracking and rate-shopping that lifted user engagement 25 % in 90 days.
- Built an LLM-powered customer-support copilot (GPT-4 + RAG on internal KB) that answers 72 % of Tier-1 tickets autonomously, cutting annual support spend $190 k.
- Introduced PostgreSQL partitioning, caching, and proactive Sentry alerting-cut API P95 latency 40 % and maintained 99.9 % uptime.
- Built selenium CI pipeline that lowered escaped-defect rate 30 %; demoed best practices across teams.
- Evangelized Scrum ceremonies & story-pointing, boosting squad throughput 20 % over two quarters.
Full Stack Developer
Overflow
CA
08.2018 - 07.2021
- Developed Construction safety detection (scikit-learn, XGBoost, YOLO, annotation, fine-tune on Roboflow) application.
- Architected core talent-matching engine (90 % placement accuracy), helping triple monthly recurring revenue.
- Re-engineered microservices for concurrency, achieving 150 % throughput and 50 % latency reduction.
- Planned & executed AWS-to-LocalStack migration for dev/test, saving $120 k/yr and slashing setup time from hours to minutes.
- Refactored React bundle with code-splitting & lazy loading-page loads 20 % faster, engagement 28 % higher.
- Drove A/B testing framework and real-time dashboards, enabling data-driven product decisions.
Full Stack Developer
GE Healthcare
WA
02.2014 - 05.2018
- Built HIPAA-compliant APIs for radiology workflow platform used by 200 + hospitals, processing 3 M+ records/day.
- Implemented FHIR-based interoperability services, cutting integration time with EMR vendors 60 %.
- Boosted automated test coverage to 85 % (RSpec + Selenium); regression cycle shrank from 4 days to < 1 day.
- On-call responder-kept mean-time-to-recovery under 20 minutes for P1 incidents.
Education
Bachelor of Science - Computer Science
Texas Tech University
TX09.2013
Skills
- Python and JavaScript frameworks
- Django, Flask, and FastAPI
- React, Angular, and Vue
- Nextjs and Nuxt
- REST and GraphQL APIs
- PostgreSQL, MySQL, MongoDB, and Redis
- HTML5, CSS3, SCSS, Bootstrap, and Tailwind CSS
- AWS services: EC2, RDS, S3, ECS
- Docker and Kubernetes orchestration
- Microservices architecture
- Event-driven design patterns
- AI/ML technologies
- LLM and RAG frameworks
- LangChain integration
- Unit testing with Jest and Storybook
- CI/CD pipeline management
- Scrum and Kanban methodologies
Certification
- Top 30% Ruby On Rails Coder
- Top 10% React Coder
- Top 10% Python Coder
- AWS Certified Developer
Languages
English
Native/ Bilingual
Timeline
Senior Full Stack Developer
Haneke Design
09.2021 - 09.2025
Full Stack Developer
Overflow
08.2018 - 07.2021
Full Stack Developer
GE Healthcare
02.2014 - 05.2018
Bachelor of Science - Computer Science
Texas Tech University