Open to opportunities

Hiroshi Tanaka

@hiroshitanaka1

Message

Senior Full Stack Engineer leveraging AI to build scalable web and SaaS platforms.

Poland

Message

What I'm looking for

I seek senior engineering roles where I can build AI-enabled SaaS products, drive architecture decisions, mentor teams, and deliver measurable business impact in collaborative, product-focused environments.

I am a Senior Full Stack Engineer with 8+ years building B2B, B2C, and SaaS web applications, combining strong backend architecture with polished front-end experiences. I have repeatedly delivered AI-driven features—recommendation engines, summarization pipelines, and anomaly detection—that improved product outcomes and operational efficiency.

I design and implement microservices, ETL pipelines, real-time analytics, and CI/CD workflows using cloud and container technologies. My work includes building digital banking platforms, custom CRMs, health-monitoring systems, and optimized SSR front ends, consistently driving faster deployments, better user experiences, and measurable business impact.

Experience

Work history, roles, and key accomplishments

Current

Senior Full Stack Engineer

Current

Diffco

Jan 2022 - Present (3 years 9 months)

Designed and developed microservices-based back-end systems and AI features for SaaS products, built a Digital Banking platform with crypto on/off ramping, and delivered an AI recommendation engine and summarization pipeline that improved personalization and operational efficiency.

Django fastAPI Python React Microservices OpenAI Machine Learning Docker CI CD

Full Stack Developer

Classic Informatics

Jun 2018 - Dec 2021 (3 years 6 months)

Built cloud-native web and mobile applications using Next.js and AWS serverless services, improved deployment workflows with Docker/Kubernetes, and implemented testing strategies that reduced production bugs by 30%.

Next.js React AWS Lambda Docker Kubernetes Jest Cypress TypeORM Storybook

Full Stack JavaScript Developer

Eversoft

Jul 2016 - May 2018 (1 year 10 months)

Converted Figma designs into responsive web apps, built RESTful APIs with Node.js/Express, and delivered pixel-perfect UIs with TailwindCSS and animation libraries to improve user experience.