necofuryai ⚡️
Profile
I'm a seasoned software engineer with 7+ years of experience building scalable backend systems, cloud-native applications, and data pipelines. I have a proven track record in designing and implementing reliable, scalable, and cost-efficient systems across domains such as connected vehicles (BEV), IoT, and analytics. Proficient in Golang, Python, Java, and AWS, with a strong focus on API design, cloud infrastructure, and performance tuning. I value clean code, thoughtful design, and cross-team collaboration. Always learning, always shipping.
Experience

Software Engineer

From Jul 2024 to Now at Automobile company, Japan

- Led the backend development in Golang for a critical internal system enabling flexible, on-demand real-time telemetry data collection from connected cars through executable Lua scripts.
- Engineered a resilient architecture integrating Go microservices, MQTT messaging, and a TimescaleDB backend to provide reliable data streams for ~1000 internal users.

Software Engineer

From Apr 2022 to Jun 2024 at Telecom carrier, Japan

- Developed all components of a data integration platform using Agile methodology and Large-Scale Scrum, completing the project within six months.
- Designed and implemented both backend and frontend of a data catalog application for collecting information from connected cars.
- Created a data connector to integrate IoT data using Apache Camel, and developed a data pipeline leveraging Kafka.
- Built a 5G core network on AWS EC2, reducing the development schedule by six months.

Security Engineer

From Jul 2021 to Mar 2022 at Telecom carrier, Japan

- Worked at Security Operation Center.
- Led an interdepartmental project to upgrade 42 Splunk components in a single day, developing and executing the implementation plan.
- Led a project to automate server setup and security patch application using Ansible, promoting CI/CD practices.

Corporate System Engineer(File Transfer system)

From Oct 2019 to Jun 2021 at Telecom carrier, Japan

- Implemented and maintained a File Transfer system.
- Automated personal information checks within files using Python within the first four months, enabling a smooth system transition and supporting growth to 30,000 monthly active users.
- Consolidated multiple file transfer systems into a single solution, reducing capital expenditure by approximately USD 3.66 million (JPY 550.5 million) and operating expenses by approximately USD 0.28 million (JPY 41.4 million) annually.
- Optimized LDAP server queries, reducing server load and completely eliminating recurring monthly system outages.
- Mentored junior developers, enhancing team productivity and fostering a culture of knowledge-sharing.

Corporate System Engineer(New Graduate)

From Apr 2018 to Sep 2019 at Telecom carrier, Japan

- Implemented and operated a Mobile Device Management (MDM) system.
- Migrated the MDM system from cloud infrastructure to an on-premises environment, significantly reducing cloud-related expenses.

Skills
  • Golang
  • Lua
  • Python
  • TypeScript
  • PostgreSQL
  • TimescaleDB
  • RDS
  • ECS
  • React
  • Kafka
  • MQTT
  • Terraform
  • TDD
  • agile/scrum
  • AWS