Tom Jongsma

I'm a bottom-line focussed Data Scientist with wide experience in the Tech sector. I'm result-obsessed, and my personal metric on whether I'm doing my job is if I'm delivering more value than my daily rate. So far this has always been the case.

My core skills include experimental analysis, modeling (econometrics and Machine Learning) and data engineering. Some of my main achievements so far are:

(For Deliveroo)

- Created, tested (through A/B tests) and put into production a CLV-based targeting model aimed at optimising for long term value. 87% of Deliveroo’s CRM promotional budget is now optimised through this method, generating an estimated £7M in incremental net present value a year

- Constructed a framework to evaluate the long-term effectiveness and profitability of incentivised promotions that is now standard procedure for all marketing teams

- Set up the current data pipeline, reporting structure and dashboarding foundation for the CRM team. In the process, got rid of inefficiencies, saving the company an estimated £150K a year

(For Upwork)

- Assisted in the creation of a freelancer recommendation system that generated 2.8\% additional revenue, resulting in approximately $168M in revenue on a yearly basis

- Created the framework and notebooks for A/B testing analysis, experiment setup and marketplace monitoring for all search and recommendation products

Many references available upon request, en Nederlands is ook prima :).