Open to opportunities

Tanaka Kaito

@kaito

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Senior backend engineer specializing in scalable systems, AI/NLP integration, and cloud-native services.

Japan

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What I'm looking for

I seek roles where I can build scalable, secure backend systems and integrate AI/NLP into production, within collaborative, cross-functional teams focused on reliability and measurable impact.

I am a Senior Backend Engineer with 7+ years designing scalable, reliable backend systems and integrating AI/NLP solutions into production. I specialize in GraphQL and RESTful API design, concurrent and distributed architectures, and database performance optimization.

I have delivered containerized cloud-native services on AWS and Kubernetes, built background job processing and async workflows, and integrated TensorFlow and PyTorch models into inference pipelines for real-world applications. I collaborate closely with cross-functional teams to ensure maintainability, security, and operational reliability.

My work spans e-commerce and multi-tenant B2B platforms where I improved data model efficiency by 30% and reduced data processing time by 15%. I focus on creating testable, maintainable AI components and production-ready backend services that drive measurable business value.

Experience

Work history, roles, and key accomplishments

Full-Stack & AI Developer

Monstarlab

Apr 2023 - Dec 2025 (2 years 8 months)

Integrated AI/ML models into backend workflows and delivered end-to-end backend solutions using Python and Laravel, improving personalization and automating data-driven decisions while deploying containerized services on AWS and Kubernetes.

Python Laravel GraphQL JWT AWS Docker Kubernetes CI CD

Full Stack Developer

Optimus Search GmbH

Aug 2020 - Feb 2023 (2 years 6 months)

Developed backend services and secure GraphQL/REST APIs with Node.js and Express, integrated AI/ML models for recommendations and predictive analytics, and implemented responsive React front-end components focused on performance.

Node GraphQL REST APIs JWT React SQL NoSQL

Full Stack Developer

Tokopedia

Jan 2018 - May 2020 (2 years 4 months)

Contributed to backend services and mobile features for consumer platforms using Node.js and Laravel, supported data modeling with MySQL/PostgreSQL/MongoDB, and participated in CI/CD and scalable distributed system design.