Data Science Team Lead | Stepstone 2024-Now, London

Conversational & agentic AI

Stepstone operates over 20 global job boards, including Totaljobs in the UK, helping companies connect with the right talent. I lead a cross-functional team of Data Scientists and ML Engineers driving AI innovation across the organization, with a strong focus on LLM-based intelligent agents.

Responsibilities & Focus Areas:

• Leading the design and deployment of robust, trustworthy AI systems that operate seamlessly on both open-source models and commercial APIs.
• Overseeing end-to-end development of tools, agents, and ML capabilities powering key B2C products (e.g., job assistant Mya, CV generator) and B2B solutions (e.g., job listing creation, CV matching).
• Driving cross-team AI strategy and ensuring scalability, maintainability, and model reliability across multiple product lines.
• Collaborating closely with compliance and policy teams to design a company-wide framework for responsible and regulation-aligned AI development, ensuring adherence to privacy and legal standards.
• Implementing an enterprise-grade platform to support Agentic AI use cases

Machine Learning Engineer | Tiktok 2020-2023, London

Trust and Safety | AI monitoring of Direct Messages

Direct messages (DMs) are an important feature of Tiktok's platform. Billions of messages transit every day and they need to be monitored to keep the users safe. Due to privacy regulations, no human moderator is allowed to read such messages; hence the need for a scalable, fast and accurate automated AI moderation system.

As the main engineer in charge of this project, I have a wide range of duties:

• Acquire, process and transform the data
• Develop advanced detection models based on state-of-the-art NLP techniques
• Create pipeline and deploy the models
• Coordinate with engineering teams to ensure compatibility with downstream tasks
• Monitor the service and handle unexpected events
• Sync-up with business stakeholders to update objectives
• Lead the internal group dedicated to knowledge sharing

AI & Machine Learning Specialist | Luxoft 2018-2020, London

Internal Research & Development:

Ran technology intelligence (articles, research papers..) and experimented on a variety of topics applied to financial services, such as:

• Applications of NLP: chat understanding, legal document classification, semantic search on document library
• Applications of Computer Vision: satellite ship tracking for insurance, OCR for official documents
• Data privacy: Machine Learning on encrypted data, automatic obfuscation
• DevOps for Machine Learning
• Machine Learning applied to trading
• Quantum computing

Sample Client Projects:

Set-up Data Science practice | Major ministry of a middle-eastern country

The ministry wanted to leverage their newly acquired datalake by implementing advanced analytics and data science capabilities:

• Assessed the current ecosystem
• Developed a few use cases as a proof of concept
• Devised a long-term plan to build an internal data science practice
• Recruited candidates to fill the positions locally

Infrastructure for Data Science Team | Risk department of a leading French bank

The Risk division was struggling to manage and extract the economic value from extensive legacy end-user computing assets (VBA macros, Python and R code), developed outside of IT governance:

• Interviewed data scientists, analysts, managers to understand their operational needs
• Introduced the concept of Citizen Developer in the bank
• Produced a Target Operating Model, covering how the bank will operate in the medium/long term

Data Scientist | Aurexia 2017-2018, Hong-Kong

Chatbot for dynamic lead generation | Python, Machine Learning, NLP, Recommender

Led the team that designed and implemented a chatbot for the CIB department of a major French bank. The system suggested potential leads for the sales team; and the bot adapted the recommendations dynamically based on the real-time feedback of the customer.

Data Scientist | Freelance 2017, Hong-Kong

Project 4: Computer Vision platform | Python, Deep-learning (Tensorflow), OpenCV, REST API

Designed pipeline for a goods manufacturer. Objects recognition and segmentation, application of style transfer.

Project 3: Data Mining and Analysis | Python, R, SQL, Machine Learning, REST API

Analysed credit data for a finance start-up. Provided business insights anD helped define a data-driven strategy.

Project 2: Signal processing and Machine Learning | Python, C, Signal Processing, Machine Learning

Designed data pipeline for a start-up in the domain of wearables, delivering real-time information to users. Developed signal processing algorithms to extract meaningful information from the sensors' raw data.

Project 1: Real-time Recommender system | Python, C, Signal Processing, Machine Learning

Created a movie recommendation system. Functional and scalable prototype, ready to be turned into a web service.

Head of Projects Asia | Microwave Vision Group 2013-2017, Hong-Kong

• Led a team of 7 engineers to drive 70+ simultaneous projects to completion,totalling 17M€ yearly
• Managed simultaneous projects (20+ throughout China and Asia) representing a total value of €4M
• Administered internal database (MySQL)
• Designed business intelligence dashboards to track KPIs
• Represented the company at various conferences and trainings throughout Asia
• Provided technical expertise on radiofrequency systems
• Managed onsite installation, troubleshooting and completion signoff