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Hi, I’m Nick Iliopoulos. I’m an AI Engineer with EU nationality and 7+ years of experience designing real-time intelligent systems and interactive decision engines. I’ve built production-grade AI solutions for live user interaction, including conversational agents, low-latency decision systems, and automated workflows that scale to billions of assets. At Rakuten in Tokyo, I led the design and deployment of AI-driven, real-time systems for traders and portfolio managers, built automated trading pipelines, and crafted character-driven AI personas and voice-enabled interfaces. I enjoy turning complex data into usable tools and narratives that help users make better decisions in dynamic environments.…Hi, I’m Nick Iliopoulos. I’m an AI Engineer with EU nationality and 7+ years of experience designing real-time intelligent systems and interactive decision engines. I’ve built production-grade AI solutions for live user interaction, including conversational agents, low-latency decision systems, and automated workflows that scale to billions of assets. At Rakuten in Tokyo, I led the design and deployment of AI-driven, real-time systems for traders and portfolio managers, built automated trading pipelines, and crafted character-driven AI personas and voice-enabled interfaces. I enjoy turning complex data into usable tools and narratives that help users make better decisions in dynamic environments.

Nick Iliopoulos

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Hi, I’m Nick Iliopoulos. I’m an AI Engineer with EU nationality and 7+ years of experience designing real-time intelligent systems and interactive decision engines. I’ve built production-grade AI solutions for live user interaction, including conversational agents, low-latency decision systems, and automated workflows that scale to billions of assets. At Rakuten in Tokyo, I led the design and deployment of AI-driven, real-time systems for traders and portfolio managers, built automated trading pipelines, and crafted character-driven AI personas and voice-enabled interfaces. I enjoy turning complex data into usable tools and narratives that help users make better decisions in dynamic environments.…Hi, I’m Nick Iliopoulos. I’m an AI Engineer with EU nationality and 7+ years of experience designing real-time intelligent systems and interactive decision engines. I’ve built production-grade AI solutions for live user interaction, including conversational agents, low-latency decision systems, and automated workflows that scale to billions of assets. At Rakuten in Tokyo, I led the design and deployment of AI-driven, real-time systems for traders and portfolio managers, built automated trading pipelines, and crafted character-driven AI personas and voice-enabled interfaces. I enjoy turning complex data into usable tools and narratives that help users make better decisions in dynamic environments.

Available to hire

Hi, I’m Nick Iliopoulos. I’m an AI Engineer with EU nationality and 7+ years of experience designing real-time intelligent systems and interactive decision engines. I’ve built production-grade AI solutions for live user interaction, including conversational agents, low-latency decision systems, and automated workflows that scale to billions of assets.

At Rakuten in Tokyo, I led the design and deployment of AI-driven, real-time systems for traders and portfolio managers, built automated trading pipelines, and crafted character-driven AI personas and voice-enabled interfaces. I enjoy turning complex data into usable tools and narratives that help users make better decisions in dynamic environments.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Work Experience

Senior Data Scientist (Fintech & conversational AI) at Rakuten

September 1, 2022 - December 31, 2025

Led production-grade AI and real-time trading support for FX, CFD, and crypto traders and portfolio managers. Managed treasury portfolios totaling over $20B, employing stochastic-rate models to optimize tenor and duration exposure, delivering returns above benchmarks. Built fully automated trading systems that operate without human intervention, generating approximately $14M P&L annually. Developed high-frequency market-making algorithms that improved pricing precision by 16% across 15+ currency pairs, reducing market risk. Designed and deployed real-time conversational AI agents with context-aware responses and decision support, including speech-to-text and text-to-speech pipelines for voice-based interfaces. Created character-driven AI personas with consistent behavior and tone, and containerized services using Python and Docker with API exposure. Authored technical docs and usage guidelines to support ongoing iteration and feature expansion.

Data Scientist at The University of Tokyo

October 1, 2021 - September 30, 2022

Explored human-system interaction in automated decision systems. Designed and taught Python-based courses on interactive data analysis, visualization, and user-centric system design. Mentored graduate students on building explainable and interpretable AI systems for real-world users.

Data Scientist at Waseda University

September 1, 2019 - January 31, 2020

Developed predictive models and simulation environments to evaluate system responses under varying user behavior scenarios. Collaborated with interdisciplinary teams to translate technical models into interactive tools and demonstrations.

Data Scientist at Kyoto University

January 1, 2018 - March 31, 2018

Analyzed behavioral and environmental datasets to understand how narrative framing influences decision-making. Communicated complex system behavior through accessible explanations and visual storytelling.

Data Scientist at Starlight

April 1, 2015 - April 30, 2016

Built user segmentation and behavior models to personalize digital experiences and content delivery. Designed and evaluated A/B tests to optimize user engagement and interaction flows. Automated data pipelines supporting rapid experimentation and iteration.

Data Analyst at Relay

January 1, 2014 - March 31, 2015

Developed dashboards and analytics tools to monitor user interaction patterns and system performance.