Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

𝑪𝒐𝒓𝒆 𝑬𝒙𝒑𝒆𝒓𝒕𝒊𝒔𝒆 🚀 - SaaS architecture & multi-tenant systems - AI applications & intelligent agents(LLM, NLP, Generative Ai) - PWA & cross-platform web/mobile application development - Hybrid mobile apps(Ionic, Cordova, Capaitor) - Chrome extensions & browser-based solutions - Secure backend APIs & System integrations - Performance, optimization, scalability & cloud-native development - Individual contributor & technical team lead managing development workflows 𝑾𝒉𝒂𝒕 𝑰'𝒗𝒆 𝑫𝒆𝒍𝒊𝒗𝒆𝒓𝒆𝒅 ✨ - End-to-end SaaS products from MVP to production-ready systems - AI-powered features using third-party AI and LLM APIs - Cross-platform web, mobile and hybrid applications - Iterative development with clear milestones and deliverables - Testing, deployment & long-term post-launch support Other Here are some of my projects. _Website not available. Sign in: https://www.twine.net/signup_ _Website not available. Sign in: https://www.twine.net/signup_ _Website not available. Sign in: https://www.twine.net/signup_…𝑪𝒐𝒓𝒆 𝑬𝒙𝒑𝒆𝒓𝒕𝒊𝒔𝒆 🚀 - SaaS architecture & multi-tenant systems - AI applications & intelligent agents(LLM, NLP, Generative Ai) - PWA & cross-platform web/mobile application development - Hybrid mobile apps(Ionic, Cordova, Capaitor) - Chrome extensions & browser-based solutions - Secure backend APIs & System integrations - Performance, optimization, scalability & cloud-native development - Individual contributor & technical team lead managing development workflows 𝑾𝒉𝒂𝒕 𝑰'𝒗𝒆 𝑫𝒆𝒍𝒊𝒗𝒆𝒓𝒆𝒅 ✨ - End-to-end SaaS products from MVP to production-ready systems - AI-powered features using third-party AI and LLM APIs - Cross-platform web, mobile and hybrid applications - Iterative development with clear milestones and deliverables - Testing, deployment & long-term post-launch support Other Here are some of my projects. _Website not available. Sign in: https://www.twine.net/signup_ _Website not available. Sign in: https://www.twine.net/signup_ _Website not available. Sign in: https://www.twine.net/signup_

Hiroshi Nagaya

Full Stack Developer, Web Developer, Back-End Developer, +2





𝑪𝒐𝒓𝒆 𝑬𝒙𝒑𝒆𝒓𝒕𝒊𝒔𝒆 🚀 - SaaS architecture & multi-tenant systems - AI applications & intelligent agents(LLM, NLP, Generative Ai) - PWA & cross-platform web/mobile application development - Hybrid mobile apps(Ionic, Cordova, Capaitor) - Chrome extensions & browser-based solutions - Secure backend APIs & System integrations - Performance, optimization, scalability & cloud-native development - Individual contributor & technical team lead managing development workflows 𝑾𝒉𝒂𝒕 𝑰'𝒗𝒆 𝑫𝒆𝒍𝒊𝒗𝒆𝒓𝒆𝒅 ✨ - End-to-end SaaS products from MVP to production-ready systems - AI-powered features using third-party AI and LLM APIs - Cross-platform web, mobile and hybrid applications - Iterative development with clear milestones and deliverables - Testing, deployment & long-term post-launch support Other Here are some of my projects. _Website not available. Sign in: https://www.twine.net/signup_ _Website not available. Sign in: https://www.twine.net/signup_ _Website not available. Sign in: https://www.twine.net/signup_…𝑪𝒐𝒓𝒆 𝑬𝒙𝒑𝒆𝒓𝒕𝒊𝒔𝒆 🚀 - SaaS architecture & multi-tenant systems - AI applications & intelligent agents(LLM, NLP, Generative Ai) - PWA & cross-platform web/mobile application development - Hybrid mobile apps(Ionic, Cordova, Capaitor) - Chrome extensions & browser-based solutions - Secure backend APIs & System integrations - Performance, optimization, scalability & cloud-native development - Individual contributor & technical team lead managing development workflows 𝑾𝒉𝒂𝒕 𝑰'𝒗𝒆 𝑫𝒆𝒍𝒊𝒗𝒆𝒓𝒆𝒅 ✨ - End-to-end SaaS products from MVP to production-ready systems - AI-powered features using third-party AI and LLM APIs - Cross-platform web, mobile and hybrid applications - Iterative development with clear milestones and deliverables - Testing, deployment & long-term post-launch support Other Here are some of my projects. _Website not available. Sign in: https://www.twine.net/signup_ _Website not available. Sign in: https://www.twine.net/signup_ _Website not available. Sign in: https://www.twine.net/signup_

Available to hire

Ontario, United States

𝑪𝒐𝒓𝒆 𝑬𝒙𝒑𝒆𝒓𝒕𝒊𝒔𝒆 🚀

SaaS architecture & multi-tenant systems
AI applications & intelligent agents(LLM, NLP, Generative Ai)
PWA & cross-platform web/mobile application development
Hybrid mobile apps(Ionic, Cordova, Capaitor)
Chrome extensions & browser-based solutions
Secure backend APIs & System integrations
Performance, optimization, scalability & cloud-native development
Individual contributor & technical team lead managing development workflows

𝑾𝒉𝒂𝒕 𝑰’𝒗𝒆 𝑫𝒆𝒍𝒊𝒗𝒆𝒓𝒆𝒅 ✨

End-to-end SaaS products from MVP to production-ready systems
AI-powered features using third-party AI and LLM APIs
Cross-platform web, mobile and hybrid applications
Iterative development with clear milestones and deliverables
Testing, deployment & long-term post-launch support
Other
Here are some of my projects.
Website not available. Sign in: https://www.twine.net/signup
Website not available. Sign in: https://www.twine.net/signup
Website not available. Sign in: https://www.twine.net/signup

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

Work Experience

Senior Full-Stack Application Developer at AllStem Connections

October 1, 2024 - June 1, 2025

Maintained and enhanced KDA score.NET-based Management Information System, delivering 8 high-priority features to streamline agricultural program workflows. Designed and implemented fully automated CI/CD pipelines using Azure DevOps and Octopus Deploy, reducing deployment cycle time from 4 hours to hands-off releases. Optimized backend performance through SQL query tuning, Redis caching, and Azure-hosted infra tuning, reducing average system response time by 34%. Provided technical leadership on version control, secure upgrade processes, Azure resource management, and infrastructure optimization.

Senior Full-Stack Software Developer at Health Team Advantages

December 1, 2022 - September 30, 2024

Architected and maintained a scalable Medicare claims platform (10,000+ daily users) using Laravel, Vue.js, and FastAPI. Integrated OpenAI APIs for automated claims categorization, reducing manual review time by 40%. Built secure, high-throughput RESTful APIs for claims, payments, and real-time processing. Used Python-based ML models (BERT) for fraud detection and claims summarization. Optimized AWS with Redis, MySQL tuning, and Python scripts — 30% faster page loads. Deployed AI models on AWS SageMaker for real-time claims risk scoring. Created GitLab CI/CD pipelines with automated testing and AWS deployment. Added model drift detection and versioned ML deployments alongside app code.

Full-Stack Developer at One Network Pvt Ltd

June 1, 2020 - October 1, 2022

Developed scalable multi-tenant backend services using Node.js/Express and Python/FastAPI for a cloud-based e-commerce/CRM platform supporting 120 concurrent tenants. Built Python-based AI services for customer behavior prediction and product recommendation using OpenAI API and LangChain, increasing cross-sell conversions by 25%. Integrated SOAP & REST APIs (including Node.js and Python connectors) for third-party synchronization — reduced overall system downtime by 15%. Collaborated with frontend teams to deliver consistent UX and maintain robust Bitbucket-based CI/CD pipelines.

Senior PHP Developer at iFaST Solutions

June 1, 2014 - February 1, 2020

Refactored and enhanced a full-featured Learning Management System, increasing system reliability by 40% using SOLID principles, unit testing, and Python data migration/reporting scripts. Led a team of 5 developers in Agile environment (Jira, daily stand-ups), successfully delivering 6 major releases on schedule. Implemented consistent dev/prod environments using Docker, AWS RDS, Azure CI/CD pipelines, and Terraform for infrastructure parity. Strengthened security & audit capabilities with AWS CloudTrail, IAM policies, and automated compliance checks using Python.