Joy Chatterjee

DCMN

Specialize in developing end-to-end ML infrastructures and solutions to tackle complex marketing challenges.

Work with and integrate advanced platforms such as Codeium, Cursor AI, ChatGPT, replicate.ai, fal.ai and many more to streamline research and accelerate development. Off and on designing scalable pipelines on native and cloud platforms, to activate real-time predictive models, time series forecasting, customer segmentation, ROI optimization and more.

Lead AI Engineer

- Led the project for multivariate time series forecasting of client campaigns, resulting in significant insights in ROI for TV campaigns.
- Implemented LLM-based chatbots for internal teams, using RAG architectures and context
tuning models.

Senior Data Scientist

The Joy of Data

Product Ops & Data Consultant, with over 10 years of experience in data science and three years in product led growth (PLG). Founder of The Joy of Data, based in Berlin.

For data, collaborative ventures with Mercedes, FedEx, Just Mad as well as AI startups such as brighter AI, DCMN focussing primarily into leveraging data for strategic product led growth.

For product, over the past three years, been a data partner for product teams. Responsible for boosting Product Led Growth (PLG) strategies through the application of data science methodologies and data analytics. Expertise domain includes proficiency in product operations, OKRs, KPI driver trees, cohort analysis, user segmentation and much more.

Founder

ShowHeroes Group

Data Scientist (In House Consulting)

brighter AI

Data Scientist

Data Engineer

Mercedes-Benz Research & Development North America, Inc.

Mavrx Inc.

Working on specific project oriented machine vision tasks to aid the system of smart farming techniques developed and monitored by Mavrx Inc.

Machine Learning Engineer

MARKABLE

Rochester Institute of Technology

Work at the lab mainly revolves around projects in the genre of algorithm development. The algorithms are aimed at solving various problems from the image processing and computer vision communities.

Graduate Research Assistant

Peer Advisor Leader

CESC Ltd.

Worked with a team of four to establish and implement control algorithms to modulate the outlet steam efficiency of the central boiler system in a thermal power plant.

Technical Intern

🌱 Founder, The Joy of Data 🎯 Helping Product Teams Grow With Data Science 🚀 Ex-Mercedes | Lead Data Scientist 🎙️ Speaker, Podcasts, YouTube

🚀 Lead AI Research Engineer | Data Science Expert | Product Coach 🚀

With over 11 years in Data Science and AI, I specialize in developing innovative, Data-Driven and AI solutions that elevate Product performance and drive Business Growth. I bring a unique blend of hands-on technical skills and strategic Product insight, supporting teams to leverage Data for informed decision-making and robust growth strategies.

🔹 Key Highlights:
	•	LLMs & Chatbots: Implemented advanced LLM-based chatbots with RAG architectures, boosting team efficiency and workflow.
	•	Predictive Analytics: Achieved a significant ROI increase on client TV campaigns through multivariate time series forecasting.
	•	MLOps & Automation: Created scalable pipelines with Docker & Kubernetes, ensuring seamless deployment and monitoring.
	•	Patented Innovations: Primary author on two patented ML technologies, focusing on object tracking and anonymization.
	•	Cross-functional Leadership: Successfully lead teams and mentor junior Data Scientists, ensuring collaborative, data-driven decision-making.

🔹 Technical Arsenal:
Python 🐍 | SQL 🗃️ | Big Data Ecosystems | Statistical Modelling 📊 | A/B Testing | Cloud Environments (AWS, Azure)

🎙️ Speaking Engagements :
An avid speaker at prestigious Data Science and AI conferences over the past two years, where he shares his insights and experiences to foster a collaborative and informed Data Science community.

Lead Data Scientist

Delivery Hero

Leading multiple domains within the Platform Site Reliability Engineering and the Experimentation Platform at Delivery Hero, overseeing all the development across both domains. Only Product lead managing multiple teams with over 50 engineers developing the following products:

• Observability - Telemetry, data visualization, and alerts with Datadog & New Relic as standalone or out-of-the-box solutions for OAM
• Chaos Engineering Platform - enables dev teams to run chaos experiments easier
• Load Testing Platform - eases the testing of the scalability of our services at DH
• Incident Management - handling the reporting, resolution, postmortem and knowledge base of incidents
• Experimentation Platform - feature flagging and experimentation tool that allows users to measure the success of their tools and enable rapid iteration

Senior Product Manager - Platform SRE & Experimentation

• Drive and own the improvement of the global experimentation platform (Platform and Analysis) that serves the group’s brands and services with key experimentation and feature flagging capabilities.

• Lead a squad of designers, engineers and data scientists to solve key customer problems with our platform based on continuous discovery.

• Drive the product strategy and vision for the platform based on quantitative and qualitative data. 

• Delivered new key features such as Holdouts, Local Evaluation SDKs, Experiment analysis (Custom Metrics, Guardrail Alerts, Traffic Allocation, Dynamic Sample Size Calculator, Imbalanced Test Analysis) and migrated data sources to 1st party tracking.

• Foster a culture of experimentation through community and provide product teams with best practices in experimentation lifecycle: design, setup, analysis, rollout/holdout and winddown.

Senior Product Manager - Experimentation Platform

STRV

• Setting product teams up for success at any product stage - Discovery, Design, Engineering and Scale - while sharing best practices, knowledge and focusing on the improvement of the product team knowledge by leading other PMs.

• Defining the product vision and strategy, communicating with clients how to achieve the best product-fit with extreme ownership and serving as a partner for the clients, and keeping their users’ needs aligned with the product delivery.

• Led several different product teams on zero-to-one projects and scaling products that include: Design, delivery and scale of a meditation mobile app (iOS & Android) & out-of-apple-store subscription web application || Creating a design concept for an NFT Football mobile game || Defining, designing and delivering a digital bank under 4 months || Discovery of a combination of web application and iOS application to digitalize a client's business || B2B Crypto exchange SDK MVP

Senior Product Manager

Envista Holdings Corporation

•  Ownership of the Product Strategy, vision and development lifecycle - as a product manager - of several products including: a multi-platform application for sales representatives tools, web app for invoice management system for customers, customer account management and payments.

•  Spearheading projects within the product development lifecycle for customer accounts, including registration, payment method handling, master data management and data flow between different platforms such as Magento, SAP and MS Dynamic 365. Ownership of all account product roadmaps and strategy.

•  Developed a simplified process to gather input data from customers and improved transparency with stakeholders in sharing the prioritization and roadmap process, bringing clarity on what issues are being solved and how that is aligned with the overall strategy.

•  Planning and executing product launches, ensuring the product profitability and success after the product releases and monitoring the performance and gathering insights that would help with other products and projects.

• Management of sprints planning for delivery teams including grooming, and retros with different dev teams, as well as all the aspects of the product including customer feedback, requirements and issues.

Product Manager

Avast

• Optimization and growth of online sales by focusing on monetization for Performance Portfolio on Consumer Sales team. Introduced new growth user flows and led the redesign of some products within the product portfolio.

• Leading experimentation (AB / Multivariate testing) on product monetization, user acquisition and retention, designing tests that vary from pricing, flow/funnel logic, segmentation; to design changes.

• Development of PBI and Google DataStudio dashboards, raw data analysis, KPI Forecasting, and identification opportunities on business model to optimize the revenue while minimizing risks.

• Cross-functional team leadership, clear communication and collaboration with core PMs, PMMs, operations, UX, digital delivery developers and other stakeholders.

• Simultaneously overlapping with the eCommerce Country Management responsibilities until full transition into Growth Product Management.

Growth Product Manager - Performance Consumer Sales

• Adapting the Global Strategy through the implementation of growth initiatives in Spain B2C on Marketing and In-App Growth flows.

• Optimize the Conversion Rate of In-app purchases and drive retention on the ES region, leading to XX% increase in revenue (acq and ret)

• Development of dashboards and sales forecast automations for all regions.

• Collaborated and led Consumer Sales Projects while ensuring alignment between Regional Managers and Consumer Sales.

eCommerce Country Manager- Spain

Deloitte

The fields in which I operate at Deloitte are diverse – as an Analyst in Startups & Innovation department I provide services for different departments of the firm – mainly managing (or as analyst) in projects focused on Technological advances, Excel databases optimization, or Social media imaging.

I learn daily from experienced professionals, and develop my skills (both soft and technical) on projects such as Popup accelerators for the Industry 4.0, Energy innovations or Fintech among others.

As key part of a team, I accomplish Development and Optimization - through Visual Basic - of Excel databases; perform Research on the Central Europe’s Startup market and Reverse mentoring on LinkedIn.

Analyst

Senior Product Manager @ Delivery Hero | Building Top Quality Digital Products and Software

As a seasoned Senior Product Manager with 6 years of proven successful leadership across industries ranging from Cybersecurity, Fintech, Healthcare, and SaaS; and different company sizes from startups to enterprise.

In currently work at Delivery Hero, where I drive the evolution of the Experimentation Platform. Under my guidance, the platform increased the amount of successful experiments, enhancing analysis and reducing potential issues. 

I lead a cross-functional team of software engineers, data scientists and data engineers, improving areas vital to the platform's growth, from SDKs, user attribution to data aggregation, and the introduction of impactful features like Holdouts, Custom Metrics, and Experiment Analysis Dashboards. I enjoy collaborating seamlessly with diverse stakeholders — from developers to analysts and fellow product people — ensuring that our Platform aligns with the different needs of the organization.

My previous experience includes a shipping a zero-to-one fintech product at STRV, achieving rapid user adoption and substantial trust within six months, measured by 5 digit funds placed and thousands of monthly transactions. Previously I was a Growth Product Manager at Avast, where I brought key improvements in conversion rate for a multimillion-user portfolio, resulting in a notable boost to ARR driven by trial improvements, pricing strategy and personalization of flows to each user journey.

Proficient in leading cross-functional teams, fostering innovation, and delivering impactful outcomes, my understanding of technology, B2B SaaS, and analytics products uniquely positions me to thrive in dynamic and challenging product environments. 

My curiosity and commitment to continuous learning enable me to swiftly adapt and drive business and user impact - or learning how to program or query languages.

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The Battle

Joy Chatterjee

Javier García Latorre

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