Data Scientist II

Posted 3 Days Ago
3 Locations
In-Office
101K-162K Annually
Mid level
Fintech
The Role
Develop end-to-end machine learning solutions, including data exploration, feature engineering, algorithm development, validation, and production deployment. Analyze terabyte-scale datasets, write production-quality code, create data science pipelines, and communicate findings to technical and non-technical stakeholders. Collaborate with Product and Engineering teams on fraud, payment, and financial risk modeling, while supporting model performance, workflow automation, and data confidentiality.
Summary Generated by Built In

At Early Warning, we’ve powered and protected the U.S. financial system for over thirty years with cutting-edge solutions like Zelle®, Paze®, and so much more. As a trusted name in payments, we partner with thousands of institutions to increase access to financial services and protect transactions for hundreds of millions of consumers and small businesses.


Early Warning follows a hybrid work model to allow for a more collaborative working environment.


Candidates responding to this posting must independently possess the eligibility to work in the United States, for any employer, at the date of hire. This position is ineligible for employment Visa sponsorship.

Overall Purpose
This position serves as a data science team member in the company delivering leading edge machine learning and artificial intelligence concepts from start to finish in collaboration with senior technical and business leaders.  This includes understanding the business problem/need, exploring and aggregating data, building and validating algorithms, and deploying completed models to deliver business results.
Essential Functions

  • Explore and aggregate data independently to uncover data anomalies that impact algorithm performance
  • End to end feature engineering - brainstorm, create, validate, down-select, etc.
  • Write production level code in a dynamic, start-up environment
  • Solve complex problems using terabyte size data sets
  • Apply of a variety of machine learning techniques to a business problem to arrive at optimal approach
  • Partner with Product and Engineering teams to solve problems and identify trends and opportunities
  • Explain and visualize results and algorithm performance to non-technical audiences
  • Support the company's commitment to protect the integrity and confidentiality of systems and data.
  • Support the company's commitment to protect the integrity and confidentiality of systems and data.

Minimum Qualifications

  • Bachelor’s Degree in Mathematics, Statistics, Computer Science, Operational Research or related field;
  • A minimum of 4 years data science, engineering, mathematics, or related work experience is required.
  • Experience developing data science pipelines & workflows in Python, R or equivalent programming language. Experience in writing and tuning SQL. Experience handling terabyte size datasets
  • Experience applying various machine learning techniques, and understanding the key parameters that affect their performance
  • Experience using ML libraries, such as scikit-learn, mllib, etc.
  • Experience using data visualization tools
  • Able to write production level code, which is well-written and explainable
  • Interest to do lots and lots of proof of concepts/rapid prototyping
  • Ability to effectively communicate findings from complex analyses to non-technical audiences.
  • Background and drug screen

Preferred Qualifications

  • Relevant experience in one or more of the following areas is
  • Experience in fraud analytics, particularly developing or validating fraud models at a bank or other financial institution.
  • Experience developing or validating banking risk models, including models used in Comprehensive Capital Analysis and Review (CCAR) stress testing or Current Expected Credit Losses (CECL) estimation.
  • Familiarity with model risk management practices, including development documentation, validation review, performance monitoring, and communicating model assumptions and limitations.
  • Experience with transaction or payment data, fraud patterns, and model evaluation for rare events, including tradeoffs between fraud detection and false positives.
  • PySpark experience and familiarity with scalable feature engineering and reproducible data science pipelines.
  • Knowledge of advanced machine learning algorithms and experience selecting methods appropriate to the business problem and data.
  • A track record of managing ambiguity, prioritizing work, and delivering proofs of concept or model development milestones, with timely communication of risks and dependencies.
  • Experience automating data science workflows or adopting shared modeling and feature engineering platforms.
  • PhD/MSc in Mathematics, Statistics, Computer Science, Operational Research or a related field.

Physical Requirements

Working conditions consist of a normal office environment. Work is primarily sedentary and requires extensive use of a computer and involves sitting for periods of approximately four hours. Work may require occasional standing, walking, kneeling, and reaching. Must be able to lift 10 pounds occasionally and/or negligible amount of force frequently. Requires visual acuity and dexterity to view, prepare, and manipulate documents and office equipment including personal computers. Requires the ability to communicate with internal and/or external customers.


Employee must be able to perform essential functions and physical requirements of position with or without reasonable accommodation.
The above job description is not intended to be an all-inclusive list of duties and standards of the position. Incumbents will follow instructions and perform other related duties as assigned by their supervisor.
Early Warning Services is an equal opportunity employer.


Chicago, IL in USD per year is: $101,000 - $152,000.
New York, NY/ San Francisco, CA in USD per year is: $122,000 - $162,000.
Additionally, candidates are eligible for a discretionary incentive plan and benefits.

Some of the Ways We Prioritize Your Health and Happiness 


  • Healthcare Coverage – Competitive medical (PPO/HDHP), dental, and vision plans as well as company contributions to your Health Savings Account (HSA) or pre-tax savings through flexible spending accounts (FSA) for commuting, health & dependent care expenses.

  • 401(k) Retirement Plan – Featuring a 100% Company Safe Harbor Match on your first 6% deferral immediately upon eligibility.

  • Paid Time Off – Flexible Time Off for Exempt (salaried) employees, as well as generous PTO for Non-Exempt (hourly) employees, plus 11 paid company holidays and a paid volunteer day.

  • 12 weeks of Paid Parental Leave

  • Maven Family Planning – provides support through your Parenting journey including egg freezing, fertility, adoption, surrogacy, pregnancy, postpartum, early pediatrics, and returning to work.


And SO much more! We continue to enhance our program, so be sure to check our Benefits page here for the latest. Our team can share more during the interview process!

Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.

Early Warning Services, LLC (“Early Warning”) considers for employment, hires, retains and promotes qualified candidates on the basis of ability, potential, and valid qualifications without regard to race, religious creed, religion, color, sex, sexual orientation, genetic information, gender, gender identity, gender expression, age, national origin, ancestry, citizenship, protected veteran or disability status or any factor prohibited by law, and as such affirms in policy and practice to support and promote equal employment opportunity and affirmative action, in accordance with all applicable federal, state, and municipal laws. The company also prohibits discrimination on other bases such as medical condition, marital status or any other factor that is irrelevant to the performance of our employees. 

Skills Required

  • Bachelor’s degree in Mathematics, Statistics, Computer Science, Operations Research, or a related field
  • At least 4 years of experience in data science, engineering, mathematics, or a related field
  • Experience developing data science pipelines and workflows using Python, R, or an equivalent programming language
  • Experience writing and tuning SQL
  • Experience handling terabyte-scale datasets
  • Experience applying various machine learning techniques and understanding performance parameters
  • Experience with machine learning libraries such as scikit-learn or MLlib
  • Experience using data visualization tools
  • Ability to write well-written, explainable production-level code
  • Ability to communicate complex analytical findings to non-technical audiences
  • Successful background and drug screening
  • Experience in fraud analytics or developing and validating fraud models at a bank or financial institution
  • Experience developing or validating banking risk models, including CCAR or CECL models
  • Familiarity with model risk management practices, including documentation, validation, monitoring, and communicating assumptions and limitations
  • Experience with transaction or payment data, fraud patterns, rare-event model evaluation, and false-positive tradeoffs
  • PySpark experience and familiarity with scalable feature engineering and reproducible data science pipelines
  • Knowledge of advanced machine learning algorithms and method selection
  • Experience managing ambiguity, prioritizing work, and delivering proofs of concept or model development milestones
  • Experience automating data science workflows or using shared modeling and feature engineering platforms
  • PhD or MSc in Mathematics, Statistics, Computer Science, Operations Research, or a related field

Early Warning Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Early Warning and has not been reviewed or approved by Early Warning.

  • Retirement Support — A 401(k) with a 100% company match on the first 6% of pay and automatic enrollment strengthens long‑term savings. This robust employer match is a notable pillar of the total‑rewards package.
  • Leave & Time Off Breadth — Flexible/unlimited PTO for exempt staff, tiered accruals for non‑exempt employees, 11 paid holidays, a paid volunteer day, and generous civic/military leaves indicate wide coverage. These provisions offer substantial flexibility for time away from work.
  • Parental & Family Support — Twelve weeks of 100% paid parental leave are provided, complemented by company‑covered Maven support for family planning and caregiving. These benefits expand support for birth, adoption, and ongoing family needs.

Early Warning Insights

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The Company
HQ: Scottsdale, AZ
1,001 Employees
Year Founded: 1990

What We Do

For almost 3 decades, our identity, authentication and payment solutions have empowered financial institutions to make decisions, make payments & prevent fraud. Early Warning has been a leader in technology that helps protect and advance the financial system. We serve a diverse network of approximately 2,500 financial institutions, government entities and payment companies. Our product solutions enable real-time funds availability for a variety of payment types through our payments network.

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