Data Scientist for Advanced Experimentation

American Express Global Business Travel; Bogatynia; On-site; PLN 211,000 - 297,000; Full time

Job summary

A leading travel management company is looking for a skilled professional in Poland to enhance their experimentation methodologies and data infrastructure. The ideal candidate will have extensive experience in A/B testing, strong communication skills, and a degree in a relevant field. You will collaborate with engineering teams and lead innovative statistical methods. This role offers flexible benefits and a collaborative environment.

Benefits

Health insurance

Retirement programs

Parental leave

Travel perks

Access to over 20,000 courses

Qualifications

• At least 5 years of experience in A/B Testing and advanced experimentation.
• Hands-on experience analyzing large amounts of data to derive actionable insights.
• Outstanding communication skills and partnerships with technology and data teams.

Responsibilities

• Design and implement sequential testing to detect winners faster.
• Collaborate with engineering to integrate statistical models.
• Stay current on advancements in statistical testing and adaptive experimentation.

Skills

A/B Testing

Fluency in English

Python

SQL

Hadoop

Product analytics

Statistics

Data analysis

Education

Degree in statistics, computer science, mathematics, operations research, economics, engineering, or information science

Tools

Tableau

Google Analytics

Amazon AWS

GCP

Azure

Job description

Amex GBT is a place where colleagues find inspiration in travel as a force for good and – through their work – can make an impact on our industry. We’re here to help our colleagues achieve success and offer an inclusive and collaborative culture where your voice is valued.

What you will be doing:

• Advance Experimentation Methodologies
  • Design and implement sequential testing to detect winners faster to shorten experiment duration while maintaining statistical rigor
  • Explore and prototype Bayesian approaches, adaptive sampling, and other intelligent allocation methods to optimize traffic efficiently
  • Partner with teams to evaluate and introduce causal inference techniques to improve the reliability of experiment results and reduce bias
• Improve Data and Infrastructure
  • Collaborate with GBT platform engineering to integrate statistical models into the experimentation platform
  • Ensure experimentation data pipelines are reliable, scalable and consumable for advanced statistical methods
• Research and Innovate
  • Stay current on advancements in statistical testing and adaptive experimentation
  • Propose and test innovative methodologies to improve experiment platform and decision quality

What we're looking for:

• At least 5 Years essential experience in A/B Testing and advanced experimentation
• Fluency in English, written and spoken
• Knowledge in Python, SQL, Hive, Tableau, Hadoop, product analytics (e.g. Google Analytics), Amazon AWS or GCP or Azure Platforms
• Subject matter knowledge in statistics, analytics, data science, machine learning, deep learning, cloud and full stack technologies
• Hands‑on experience analyzing large amounts of data to derive actionable insights
• Outstanding communication skills and partnerships with technology, product strategy, and data office
• Self‑starter and autonomous; work with a distributed team and demonstrate a strong sense of ownership
• Degree in statistics, computer science, mathematics, operations research, economics, engineering or information science
• A strong portfolio of GitHub, Kaggle, IP contributions

#GBTjobs

Location

Poland

The #TeamGBT Experience

Work and life: Find your happy medium at Amex GBT.

• Flexible benefits are tailored to each country and start the day you do. These include health and welfare insurance plans, retirement programs, parental leave, adoption assistance, and wellbeing resources to support you and your immediate family.
• Travel perks: get a choice of deals each week from major travel providers on everything from flights to hotels to cruises and car rentals.
• Develop the skills you want when the time is right for you, with access to over 20,000 courses on our learning platform, leadership courses, and new job openings available to internal candidates first.
• We strive to champion Inclusion in every aspect of our business at Amex GBT. You can connect with colleagues through our global INclusion Groups, centered around common identities or initiatives, to discuss challenges, obstacles, achievements, and drive company awareness and action.
• And much more!

All applicants will receive equal consideration for employment without regard to age, sex, gender (and characteristics related to sex and gender), pregnancy (and related medical conditions), race, color, citizenship, religion, disability, or any other class or characteristic protected by law.

Click Here for Additional Disclosures in Accordance with the LA County Fair Chance Ordinance.

Furthermore, we are committed to providing reasonable accommodation to qualified individuals with disabilities. Please let your recruiter know if you need an accommodation at any point during the hiring process. For details regarding how we protect your data, please consult the Amex GBT Recruitment Privacy Statement.

What if I don’t meet every requirement?

If you’re passionate about our mission and believe you’d be a phenomenal addition to our team, don’t worry about “checking every box;