Hi, I’m Hiroshi Iwasaki, a Senior Full Stack Engineer with 9+ years shipping production web apps end-to-end. I enjoy building booking, SaaS, and fintech platforms—from polished React/Next.js and Vue/Nuxt frontends to Node.js, FastAPI, and Django backends. I work across stacks to handle real payments, real users, and real money, including batch ingestion pipelines, queue-based background workers, and data validation layers, all backed by PostgreSQL, MongoDB, and MySQL on AWS, Azure, and GCP. I’m passionate about clean, simple code and shipping fast while keeping the user and the system in mind. I love collaborating with teammates, mentoring juniors, and crafting robust architectures that balance performance, reliability, and security.

Hiroshi Iwasaki

Hi, I’m Hiroshi Iwasaki, a Senior Full Stack Engineer with 9+ years shipping production web apps end-to-end. I enjoy building booking, SaaS, and fintech platforms—from polished React/Next.js and Vue/Nuxt frontends to Node.js, FastAPI, and Django backends. I work across stacks to handle real payments, real users, and real money, including batch ingestion pipelines, queue-based background workers, and data validation layers, all backed by PostgreSQL, MongoDB, and MySQL on AWS, Azure, and GCP. I’m passionate about clean, simple code and shipping fast while keeping the user and the system in mind. I love collaborating with teammates, mentoring juniors, and crafting robust architectures that balance performance, reliability, and security.

Available to hire

Hi, I’m Hiroshi Iwasaki, a Senior Full Stack Engineer with 9+ years shipping production web apps end-to-end. I enjoy building booking, SaaS, and fintech platforms—from polished React/Next.js and Vue/Nuxt frontends to Node.js, FastAPI, and Django backends. I work across stacks to handle real payments, real users, and real money, including batch ingestion pipelines, queue-based background workers, and data validation layers, all backed by PostgreSQL, MongoDB, and MySQL on AWS, Azure, and GCP.

I’m passionate about clean, simple code and shipping fast while keeping the user and the system in mind. I love collaborating with teammates, mentoring juniors, and crafting robust architectures that balance performance, reliability, and security.

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Experience Level

Expert
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Intermediate
Intermediate
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Language

English
Fluent

Work Experience

Senior Full Stack Engineer at Melazeta srl
January 1, 2024 - March 31, 2026
Led end-to-end development for multiple platforms: a guest-facing hotel & travel booking site (Next.js + TypeScript + Tailwind) with a fast search and checkout, a Node.js/Express backend with PostgreSQL on AWS RDS, Stripe payments, and AWS SES for confirmations; built a calendar availability engine with Redis caching to keep searches under 200ms; containerized services with Docker and deployed on AWS EKS; developed a hotel admin dashboard for bookings, pricing, and refunds. Also delivered a property rental platform (Nuxt 3 + Pinia frontend, FastAPI backend with MongoDB, image uploads via S3/CloudFront), an escrow payment and real-time WebSocket messaging, and a serverless event & seminar booking flow with Lambda + SQS for refunds and notifications.
Full Stack Engineer at Intechcore
February 1, 2021 - November 30, 2023
Built a staffing & outsourcing management platform with a candidate matching dashboard (React + Redux) used by 200+ recruiters; Django REST Framework backend on Azure App Service; implemented a nightly batch job to auto-generate invoices from validated timesheet data with audit trails; added RBAC so clients, candidates, and admins see appropriate data. Also developed an invoice & expense management SaaS with a Vue 3 + Nuxt frontend, a FastAPI backend with MongoDB, Azure Blob Storage for receipts, and a BullMQ + Redis batch ingestion pipeline to process receipts via OCR, plus a multi-step approval workflow with exportable tax reports.
Full Stack Engineer at SB Works
April 1, 2017 - December 31, 2020
Contributed across three product lines: a job matching & recruitment platform (React frontend, Node.js + Express backend with MySQL on GCP), an AI-assisted resume scorer, and a subscription membership platform (Vue.js frontend, Node.js backend on GCP). Implemented an AI resume matching service, resume parsing, in-app messaging, and interview scheduling; built a bulk-order and B2B payment system with per-user permissions and Stripe-based billing, plus delivery integrations and an analytics dashboard for admins.

Education

Bachelor of Computer Science at WSB University
October 1, 2013 - September 30, 2016

Qualifications

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Industry Experience

Software & Internet, Travel & Hospitality, Professional Services, Real Estate & Construction