Sr. Data Engineer

Data Architect Calling all innovators - find your future at Fiserv. We’re Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations, merchants and consumers to one another millions of times a day – quickly, reliably, and securely. Any time you swipe your credit card, pay through a mobile app, or withdraw money from the bank, we’re involved. If you want to make an impact on a global scale, come make a difference at Fiserv. About your role: Fiserv is a global leader in fintech and payments, enabling secure and innovative financial services experiences. We connect financial institutions, corporations, merchants, and consumers through reliable transactions, shaping the future of digital payments. In this role, you will be architecting data solutions for fraud detection and risk management. What you’ll do: Design and implement scalable, secure data architectures for analytics and operational use cases in fraud detection and risk management. Build and maintain efficient, reliable data pipelines and ETL/ELT workflows, optimizing for performance and cost. Manage large, high‑scale datasets; establish and enforce data integrity, lineage, and quality controls. Collaborate with data scientists to prepare training datasets and operationalize machine learning models for fraud detection. Utilize technologies such as Cassandra, PostgreSQL, Python, PySpark, and Databricks to deliver robust solutions. Implement cloud‑based data solutions on Microsoft Azure to support scalability, resiliency, and security. Establish and uphold data governance policies, standards, and best practices across the data lifecycle and coordinate releases and updates across complex infrastructure and cross‑functional teams, ensuring seamless deployment and minimal disruption. Take ownership of deployments and environments, manage tasks effectively, and demonstrate accountability for results. Experience you’ll need to have: 10+ years of experience in data architecture and analytics, with direct focus on fraud detection and risk management. 5+ years of hands‑on programming experience with Java and Python, including SQL expertise and experience with high‑scale relational databases; NoSQL experience (such as Cassandra, HBase, or DynamoDB) preferred. 3+ years of technical leadership experience designing and delivering data solutions at scale and managing large data volumes and applying data management best practices, including partitioning, indexing, caching, and performance tuning. 2+ years’ experience preparing and training machine learning models using fraud data, including feature engineering and model operationalization. Proficiency with Cassandra, PostgreSQL, Python, Spark/PySpark, Databricks, and Azure data services. Familiarity with pipeline automation, orchestration, and incremental data loading processes and knowledge of supervised and unsupervised learning approaches and techniques such as PCA and XGBoost. Experience in data mapping, standardization, data quality rules, and creating derived attributes for analytics. Bachelor’s degree in data science, Computer Science, Engineering, Mathematics, or a related field, or equivalent experience. Important info about this role: We’re better together! This role is fully on‑site This is a full‑time, direct‑hire position, and no contract options or unsolicited agency submissions will be considered You must currently possess valid and unrestricted U.S. work authorization to be considered for this role. Individuals with temporary visas including, but not limited to, F‑1 (OPT, CPT, STEM), H‑1B, H‑2, or TN, or any candidate requiring sponsorship, now or in the future, will not be considered for this role Salary Range $109,000.00 - $182,400.00 These pay ranges apply to employees in New Jersey and New York. Pay ranges for employees in other states may differ. It is unlawful to discriminate against a prospective employee due to the individual's status as a veteran. For incentive eligible associates, the successful candidate is eligible for an annual incentive opportunity which may be delivered as a mix of cash bonus and equity awards in the Company’s sole discretion. Our commitment to Equal Opportunity: Fiserv is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, gender, gender identity, sexual orientation, age, disability, protected veteran status, or any other category protected by law. If you have a disability and require a reasonable accommodation in completing a job application or otherwise participating in the overall hiring process, please contact View email address on click.appcast.io. Please note our AskHR representatives do not have visibility to your application status. Current associates who require a workplace accommodation should refer to Fiserv’s Disability Accommodation Policy for additional information. #J-18808-Ljbffr