Welcome to Ryuichi's Portfolio

Hello!

I’m Ryuichi Ohhata, a software engineer specializing in cloud-distributed systems and large-scale data platforms. I design high-throughput telemetry pipelines and real-time analytics systems that serve millions of network devices. My work spans IoT, applied AI, award-winning energy research, and a pending patent.

Patent

Smart Fireplace Control System With Integrated Sensor and Accessory Control

Co-Inventor · Filed December 12, 2025

Designed a smart IoT system using ESP32, React Native, and Firebase for remote fireplace control, scheduling, and real-time environmental monitoring.

Awards

Oxford Energy Day – Highly Commended Poster Award

Oxford Energy Day poster preview

October 2025

Researched and prototyped a cloud-edge personalization system combining TinyML and online learning for adaptive air-conditioning control. The simulation improved energy efficiency by approximately 40% and temperature stability by approximately 90%.

HPE Aruba Hackathon 2023 Regional Winner – Third Place

August 2023

Prototyped an LSTM-based bug-triage system for categorizing, summarizing, and deduplicating bug reports, with planned Jira integration.

Boston University Senior Project Entrepreneurship Award

May 2022

Proposed Amadeus, a musician-matching app, and led a team of four building it with React Native, Java, Kafka, and Firebase.

Timeline

Hover over or select a rail to expand its details.

  • Education
  • Professional experience
  • Research & projects
  • Ongoing

Professional Experience

HPE Aruba Networking

Jun–Aug 2021
Software Engineering Intern

Aug 2022–Jun 2026
Software Engineer II

Jun 2026–Present
Software Engineer III

Description:

  • Designed and scaled a distributed application visibility platform ingesting telemetry from more than five million network devices using Java, Kafka, Kubernetes, and ClickHouse.
  • Designed a Kafka state-store deduplication algorithm to prevent application telemetry from being counted more than once across access points, switches, and gateways.
  • Built a reporting and query service with GraphQL APIs and optimized ClickHouse queries for time-series network metrics.
  • Extended low-latency IP allocation services in Go using Redis and ArangoDB.
  • Led multi-tenant configuration support for more than 200 managed service providers using Python, Go, Kafka, Redis, and CockroachDB.

Apka Shakti

Co-Founder & Software Lead · July 2025–Present

  • Designed the end-to-end cloud architecture for HYDECO, a solar-powered seawater desalination and cooling system.
  • Built a scalable IoT monitoring and alerting pipeline with AWS IoT Core, Lambda, ECS, ELB, CloudWatch, Terraform, MQTT, ClickHouse, and Grafana.
  • Replaced local MATLAB computation with distributed cloud infrastructure, improving scalability, reliability, and long-term cost efficiency.
  • Presented the technical vision to potential investors and identified software commercialization opportunities.

CIDAR LAB

May, 2020 - May, 2022
Undergraduate Research Assistant

Description:

  • Test and evaluate software in hardware description language development research for microfluidics
  • Generate microfluidics designs using hardware description language that is currently under development
  • Build microservices for existing synthetic biology applications

Human Dynamics

Jan, 2021 - May, 2021
Contributor

Nona Research Foundation

Feb, 2020 - Apr, 2021
Software Engineering Intern

May, 2021 - Aug 2022
Fellow

Description:

  • System administration works including hosting and maintaining the synthetic software tools on the Nona Research Foundation website using Docker and AWS
  • Rehost legacy tools by using docker containers and modiftying outdated codes

International Genetically Engineered Machine competition (iGEM) 2020

May - Nov, 2020
Software Committee Member

Description:

  • Answered technical questions from the participants
  • Assisted teams with their GitHub repositories

Boston University Information Services and & Technology

Jun, 2019 - May, 2020
Web Developer Intern

Description:

  • Converted old websites hosted by Boston University (BU) into new ones with the responsive framework using Wordpress and HTML
  • Communicated with departmental faculties to assist with their websites to satisfy the requirements

Boston University Rocket Propulsion Group

Sep, 2018 - Mar, 2020
Software Engineering Member

Description:

  • Designed and coded the electronic system for my team's rocket in the High Powered Rocketry Competition
  • Collaborated with other members to develop hardware in the loop testing for the group's avionics

Skills

Programming Languages

Java, Python, Go, C++, and JavaScript

Cloud, Data, and Distributed Systems

AWS (IoT Core, Lambda, ECS, ELB, and CloudWatch), Kafka, Kubernetes, Docker, Terraform, GraphQL, MQTT, and Arduino

Databases

ClickHouse, Redis, CockroachDB, ArangoDB, MongoDB, and SQL

Last Updated:
Contributors: Ryuichi Ohhata, ryuichi