Sr. Software Engineer San Francisco, CA, US; Remote, US

tvScientific is the first and only CTV advertising platform purpose-built for performance marketers. We leverage massive data and cutting-edge science to automate and optimize TV advertising to drive business outcomes. Our solution combines media buying, optimization, measurement, and attribution in one, efficient platform. Our platform is built by industry leaders with a long history in programmatic advertising, digital media, and ad verification who have now purpose-built a CTV performance platform advertisers can trust to grow their business.We're looking for a Senior Backend Engineer to help design, build, and scale tvScientific's contract and billing systems that support direct advertisers, internal teams, and Finance. This role focuses on building backend services that can support a wide range of contract structures and billing models while maintaining strong guarantees around correctness, auditability, and operational reliability.You'll work on systems that must operate accurately across different commercial relationships and external partners, ensuring our contract logic remains consistent, flexible, and maintainable as the business scales.This is a high-impact backend role at the intersection of revenue, finance, and customer operations, where clear domain modeling, data integrity, and sound engineering judgment matter more than any specific implementation approach.What you'll do:Design and implement backend systems for contract lifecycle management, including creation, versioning, approvals, amendments, and renewalsBuild and evolve contract management capabilities (e.g., terms, payouts, attribution rules, eligibility, and partner-specific logic) for our CPA Contract/Billing modelSupport the expansion of CPM billing model contracts, including rate management, impression-based calculations, and integrations with billing and finance systemsDevelop APIs and services that serve customers, internal operations teams, and finance stakeholdersPartner closely with Product, Finance, and Data teams to translate business requirements into robust technical solutionsEnsure systems are auditable, accurate, and compliant, with strong data integrity guaranteesImprove system observability, reliability, and performance as contract volume and complexity scaleOwn backend services and data models related to contracts and billingLead technical design discussions and make pragmatic architectural decisionsWrite clean, well-tested, and maintainable code with a strong focus on correctnessDrive improvements in data consistency, validation, and error handling across contract workflowsReview code and mentor other engineers, setting a high bar for backend qualityCollaborate cross-functionally to support new deal structures and evolving business modelsNice-to-Haves:Experience working closely with finance or accounting teamsBackground in building audit-friendly or compliance-sensitive systemsWhat we're looking for:Experience with billing/contract mechanisms (specifically affiliate platforms)Bachelor's degree in computer science, a related field or equivalent experienceExperience building large-scale full-stack products.Deep understanding of web development and best practices in React/ReduxStrong software engineering principles and practicesStrong collaboration and communication skillsNice-to-Haves:Experience working closely with finance or accounting teamsBackground in building audit-friendly or compliance-sensitive systemsIn-Office Requirement Statement:We recognize that the ideal environment for work is situational and may differ across departments. What this looks like day-to-day can vary based on the needs of each organization or role.Relocation Statement:This position is not eligible for relocation assistance. Visit ourPinFlex page to learn more about our working model.At Pinterest we believe the workplace should be equitable, inclusive, and inspiring for every employee. In an effort to provide greater transparency, we are sharing the base salary range for this position. The position is also eligible for equity. Final salary is based on a number of factors including location, travel, relevant prior experience, or particular skills and expertise.US based applicants only$123,696 - $254,667 USDWe're looking for all kinds of people.To build an app that's used and loved by people all around the world, we need a team with all kinds of different perspectives, experiences and backgrounds.How Do You Know If You Are a Veteran Protected by VEVRAA?Contrary to the name, VEVRAA does not just cover Vietnam Era veterans. 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