Berlin Metropolitan Area
I'm a junior developer with 5+ years at Wolt, a global delivery platform operating in 25+ countries across Europe and Asia. What started on the technical frontline gave me deep insight into real user and courier problems — and motivated me to build scalable solutions that bridge engineering and business needs. I took ownership of developing and deploying internal tools using TypeScript, Express, PostgreSQL, React, and GitHub Actions in collaboration with the Security and Infrastructure teams. One standout project automated a manual compensation process that previously cost thousands of euros annually. I designed and implemented an automated system that fetches affected couriers' earnings data and executes payouts via API. The idea originated from issues I observed in daily operations — I pitched it and led the delivery end-to-end, delivering clear business impact. Outside work, I'm building a full-stack delivery platform from the ground up: a modern React frontend with a Spring Boot backend, including JWT authentication, merchant browsing, menu display, order placement, and order history. This project reflects the same mindset I bring to professional work — when I use a system daily, I dive in to understand and improve how it's built. Tech stack: TypeScript, React, Spring Boot, Express, PostgreSQL, SQL, REST APIs, JWT, GitHub Actions. I'm actively seeking Software Engineer or Full-Stack Developer roles where I can contribute production-grade code, own features, and continue growing in a technical environment. Passionate about clean architecture, automation, and turning real-world problems into reliable software. Open to new opportunities — feel free to connect or reach out! - Links - - GitHub: github.com/hibiki-shibata - Profile Site: hibiki-shibata.github.io - Delivery Platform Demo: hibiki-shibata.github.io/ride.driver.frontend/consumer/home - Backend Repo: github.com/hibiki-shibata/ride.driver.backend - Frontend Repo: github.com/hibiki-shibata/ride.driver.frontend
Building prediction market platform from scratch. Expanding from Web to mobile apps, I'm building a platform which bring portability on users assets in low costs. Tech Stack: Language: TypeScript / Node JS. Framework: Express / React / Vite. Infra: PostgreSQL / Redis / Google Cloud Platfrom.
- Software development - Service: Batch operation / Utility tools / Chat bot for internal workload. Language: TypeScript / Python / HTML / CSS. Framework: Express / React. Database: PostgreSQL. Infra & tool: AWS EKS / GitHub Actions / Docker / Vault. I led the development of the tool to patch on-demand problems we saw on the support frontline. Collected thousands of courier earnings data and compensated the affected ones through API for example. - Analytics & Police requests - Extracted requested data from Snowflake, Datadog and Looker, using SQL queries and Python. And filed it thoroughly by following compliances. - On-call & Incident Commander - Served as an Incident commander during outages, coordinating across Engineering and Business teams, then documenting timelines, impacts, root causes and learnings precisely in company-wide post-mortems. - L2 Technical Support & System Debugging - Triaged hundreds of weekly inquiries - Analyzed logs, reproduced and elaborated the software issues before routing to dedicated engineering teams, keeping developers focused on development. - API Integration - Managed POS integrations with external aggregators - coordinating API design, issuing API keys, and validating data exchange with third-party developers. - Device & Access Management Admin - Managed company-wide access to internal tools in compliance with ISO/IEC 27001 standards - Tools - Datadog / GitHub / Snowflake / Jira / Atlassian / Looker / Postman / Grafana / Elastic Search / Slack API / Adyen and Stripe portal.
Handled hundreds of support tickets per day, using chat and phone in Japanese and English across consumer, courier, and merchant queries. Managed massive workload by multi-tasking the support tickets and communication with internal stakeholders. It brought me the ability to adapt and efficiently work in the task-intensive environment.