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Senior Data Scientist, Algorithm



Data Science
Posted on Thursday, February 23, 2023
Airwallex is the leading financial technology platform for modern businesses growing beyond borders. With one of the world’s most powerful payments and banking infrastructure, our technology empowers businesses of all sizes to accept payments, move money globally, and simplify their financial operations, all in one single platform.
Established in 2015, our purpose is to connect entrepreneurs, business builders, makers and creators with opportunities in every corner of the world. Today, Airwallex has a global footprint across Asia-Pacific, Europe, and North America.
About the role
Airwallex is building an industry-leading online payments infrastructure that helps merchants to collect credit card payments and other forms of payment from consumers around the world. This role will play a crucial role within the online payments product team to help our merchants to increase the success rate of card payments. Connecting the deep domain expertise of the team with data science, we are dynamically adjusting the card scheme messages and various verifications applied to the transaction to increase the chances of the issuing bank authorizing the payment.


  • Design and implement rigorous experiments to improve payment success rates
  • Develop optimization algorithms (e.g. contextual multi-armed bandits) to improve payment success rates with minimal opportunity cost
  • Build transaction-level predictive models that accurately estimate probability of payment success
  • Partner with data engineers to develop tools to identify optimization opportunities at scale
  • Partner with Product, Engineering, Risk, and cross-functional teams to inform, influence, support, and execute product strategy and investment decisions


  • 5+ years industry experience and an advanced degree (PhD or MS) in a quantitative field (e.g. Statistics, Engineering, Sciences, Computer Science, Economics)
  • Experience with communicating the results of analyses to executives and cross-functional teams to influence the strategy
  • Expert in data querying languages (e.g. SQL), scripting languages (e.g. Python), and/or statistical/mathematical software (e.g. R), experience in schema design and dimensional data modeling a plus
  • Expert in experimentation, machine learning, and statistical modeling to drive data-informed decisions, experience with deploying production machine learning models a plus
  • Experience in technology, financial services and/or a high growth environment is advantageous
At Airwallex you’ll have the ability to make an impact in a rapidly growing, global fintech. We want you to share in our success, which is why you’ll be offered a competitive salary plus valuable equity within Airwallex. We also like to ensure we create the best environment for our people by providing a collaborative open office space with a fully stocked kitchen. We organise regular team building events and we give our people the freedom to be creative.
Airwallex is proud to be an equal opportunity employer. We value diversity and anyone seeking employment at Airwallex is considered based on merit, qualifications, competence and talent. We don’t regard colour, religion, race, national origin, sexual orientation, ancestry, citizenship, sex, marital or family status, disability, gender, or any other legally protected status. If you have a disability or special need that requires accommodation, please let us know.
Airwallex does not accept unsolicited resumes from search firms/recruiters. Airwallex will not pay any fees to search firms/recruiters if a candidate is submitted by a search firm/recruiter unless an agreement has been entered into with respect to specific open position(s). Search firms/recruiters submitting resumes to Airwallex on an unsolicited basis shall be deemed to accept this condition, regardless of any other provision to the contrary.