Data Engineer — Finance

About this role

**Onsite: San Francisco, CA / New York, NY / Bellevue, WA** A fast-growing AI company's Finance org is hiring a Data Engineer to build the data infrastructure its CFO team runs on. You'll join a small, fast-moving team with a broad mandate: build the pipelines, fix what's broken, and do whatever it takes to keep Finance's roadmap moving. This is a 6-month, full-time onsite contract, with room to extend based on performance and business need. ## Responsibilities - Build and maintain PySpark-based data pipelines that keep Finance's data flowing accurately and on time. - Write and optimize SQL to pull, join, and validate large volumes of financial data. - Partner with Finance and engineering stakeholders to turn ambiguous asks into working data infrastructure. - Track down and fix pipeline issues quickly, owning data quality end to end. ## Qualifications - 2–4 years of experience as a Data Engineer. - Hands-on experience with PySpark and large-scale/distributed data processing. - Strong SQL skills — you'll be tested on this directly across two technical screens. - Comfortable working onsite full-time. - Bachelor's degree in Computer Science or a related field. - Strong written communication and comfortable working independently. This is a hands-on data engineering role, not a BI, dashboarding, or reporting seat — and it has no overlap with ML model training or research. ## About Cincinnatus LLC Cincinnatus LLC is an enterprise staffing company that partners with leading technology companies to source and employ highly skilled professionals for contingent and contract-based opportunities. Cincinnatus serves as the employer of record for these engagements, providing W-2 employment, payroll, benefits, and compliance, while placing employees directly within client teams to work on high-impact initiatives. Roles hired through Cincinnatus are not project-based or freelance engagements. They are structured, role-based positions that typically involve part-time or full-time commitments, close collaboration with a client's internal teams, and integration into standard enterprise workflows. Cincinnatus is a legal entity separate from Mercor. While opportunities may be discovered through Mercor's platform, employment, onboarding, payroll, and benefits for these roles are administered by Cincinnatus LLC. ## Equal Employment Opportunity Cincinnatus is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or any other legally protected characteristic. Cincinnatus is committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans throughout the job application process.

Eligible applicant countries

This role accepts applicants from:

• USA

Skills & domains

• ai-training
• rlhf
• sme
• annotation
• Data Analysis