Software engineer with a background in backend development and data analysis, currently building full-stack applications with Python, TypeScript, and PostgreSQL. I enjoy contributing to both architecture and day-to-day code on real products. I’m actively developing CoachSync, an education-technology platform for coach-athlete management and training analytics, and I also build volunteer web projects using modern TypeScript/React stacks and headless CMS approaches.…

Kakeru Ogasawara

Software engineer with a background in backend development and data analysis, currently building full-stack applications with Python, TypeScript, and PostgreSQL. I enjoy contributing to both architecture and day-to-day code on real products. I’m actively developing CoachSync, an education-technology platform for coach-athlete management and training analytics, and I also build volunteer web projects using modern TypeScript/React stacks and headless CMS approaches.…

Available to hire

Software engineer with a background in backend development and data analysis, currently building full-stack applications with Python, TypeScript, and PostgreSQL. I enjoy contributing to both architecture and day-to-day code on real products.

I’m actively developing CoachSync, an education-technology platform for coach-athlete management and training analytics, and I also build volunteer web projects using modern TypeScript/React stacks and headless CMS approaches.

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Skills

Experience Level

API
Expert
Node.js
Expert
TypeScript
Expert
PostgreSQL
Expert
Python
Expert
React JS
Expert
Data Visualization
Expert
Docker
Expert
Tailwind
Expert
Web Design
Intermediate

Language

Japanese
Fluent
English
Advanced
Dutch
Beginner

Work Experience

Customer Support Engineer at Create Entrance B.V.
January 1, 2025 - Present
Investigated technical issues by querying databases and coordinating with infrastructure and development teams to resolve incidents. Built an internal Python tool to automate extraction and processing of reposted contents to report DMCA takedown cases, reducing manual reporting effort. Analyzed operational data (sales figures, access patterns, device usage) and produced visualizations and reports for internal stakeholders.
Sous-Chef Teppanyaki at Japanese Steakhouse Kobe
January 1, 2020 - January 1, 2024
Managed kitchen operations in a high-pressure environment; trained and supervised junior staff. Maintained HACCP food safety standards while ensuring smooth service delivery during busy periods.

Education

BSc Information Management at Tokyo Online University
January 1, 2021 - January 1, 2024
BSc Sport Science at Kanazawa Seiryo University
January 1, 2016 - January 1, 2020

Qualifications

Inburgeringsexamen (A2) — Dutch civic integration exam
January 1, 2025 - July 16, 2026

Industry Experience

Education, Software & Internet, Professional Services
    CoachSync

    https://www.twine.net/signin

    A full-stack platform that synchronizes the coach–athlete relationship: athletes log training sessions and submit weekly reports; coaches review, comment, and track athlete progress — across three languages.

    Live demo: https://www.twine.net/signin

    • Built with Next.js + TypeScript frontend, Node.js + TypeScript API layer, and PostgreSQL via Supabase + Prisma
    • Implemented role-based access control (COACH / ATHLETE) with separate dashboards and JWT auth
    • Integrated DeepL API for real-time trilingual translation (Japanese · English · German) on coach comments and weekly reflections
    • Built athlete analytics: best time trend by distance, weekly running volume charts
    • Designed the full data model from scratch: WeeklyReport → TrainingSession → SessionResult
    T&F team website with CMS function(NotionAPI)

    Club website for AVON Heerlen, a real deployed athletics club site used by members.

    • Built with Next.js, using Notion API as a headless CMS and AWS S3 for image hosting
    • Deployed on Vercel with automated builds — content editors update the site via Notion, no code needed
    • Live: https://www.twine.net/signin

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