Senior Data Scientist

We’re looking for an enthusiastic Senior Data Scientist to expand our Data Science team.

We are a fast-growing (75+ strong) startup based out of Budapest and London with new office locations opening up in the US and APAC. SEON raised it’s Series A in March 2021 and was featured in TechCrunch.

Our lead investor, CREANDUM is behind Euro success stories like Spotify, Klarna, Bolt and many more leading tech brands.

We've developed a cutting edge system that protects online businesses from fraud. Our platform filters and differentiates between good and bad users, therefore mitigating risk and minimizing losses. The SEON system enables businesses to make better decisions based on the digital footprint analysis of an online consumer. 

Your responsibilities will include:

  • Contribute to our in-house built machine learning applications
  • Build predictive models and machine-learning algorithms
  • Processing, cleansing, and verifying the integrity of data used for analysis
  • Combine models through ensemble modeling
  • Improve the availability and performance of the applications
  • Produce production quality, clean and tested code
  • Support, refine and suggest improvements to the current code base and new features
  • Communicate and cooperate with internal and external engineering and product development teams
  • Doing ad-hoc analysis and presenting results

Our requirements are:

  • Experience with scalable application development in Python, R and SQL
  • Software engineering capabilities in Python and fundamental knowledge of RESTful API development
  • Awareness of methodologies used in quality assurance testing
  • Strong understanding of decision-tree based, white and black box algorithms
  • Strong math skills (e.g. statistics, algebra)
  • Presenting information using data visualization techniques
  • Ability to cooperate with team members in Agile development methodology
  • Out-of-the-box thinking combined with the ability to adapt to a fast-paced environment
  • Excellent problem-solving skills
  • Fluent English

Followings are a huge advantage:

  • Experience with black-box algorithms like XGBoost, CatBoost
  • Experience with C5.0 decision tree algorithm
  • Experience using business intelligence tools (e.g. Tableau) and data frameworks (e.g. Hadoop)
  • Experience in user behaviour analytics and anomaly detection
  • Experience with fraud related projects
  • Experience with graph networks/databases

What we offer in return:

  • Dynamic and enthusiastic working environment
  • In-depth knowledge and insights about the online payments and anti-fraud industry
  • Supportive young team
  • Competitive salary and shares
  • Comfortable office in the centre of Budapest
  • Remote working options
  • 3 extra paid vacation days


We usually respond within three days

Or, know someone who would be a perfect fit? Let them know!

Already working at SEON. Fraud Fighters?

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