Top Senior Level Jobs

As a Senior People Business Partner at Whatnot, you'll partner with tech leaders to drive people strategy, improve team effectiveness, and shape people programs to support growth and engagement.

Lead month-end, quarter-end, and year-end close activities including journal entries, reconciliations, variance analysis, and accruals (including clinical trial accruals). Support SOX compliance and audits, drive automation and AI-enabled process improvements, maintain controls, and partner cross-functionally to ensure accurate US GAAP financial reporting.

Lead architecture, development, reliability, and improvement of foundational data platforms covering storage, streaming, caching, indexing, and warehousing. Collaborate with cross-functional stakeholders, deliver platform features, improve engineering practices and tooling, present technical guidance, and mentor engineers. The role requires extensive distributed systems, cloud, database, containerization, deployment, and large-scale data platform experience, with emphasis on technical leadership and organizational collaboration.

Lead the development of a cyber risk management platform, mentor junior developers, ensure scalable software solutions, and collaborate with cross-functional teams.

Contract Product Designer responsible for product strategy and end-to-end UX/UI delivery: ideation, interaction and visual design, user research and testing, prototyping (including AI/LLM-powered rapid prototypes), UI architecture for web and devices, and presenting work to cross-functional teams.

Own full-stack features from scoping through launch, build AI-powered product surfaces, improve platform reliability and performance, engage federal stakeholders, set technical direction, uphold code quality, and mentor engineers. The role requires strong React, Next.js, Node.js, TypeScript, and Postgres expertise, effective use of AI coding tools, and comfort operating independently in an ambiguous, high-impact environment.

Leads the strategic transformation from legacy oncology registry software to a cloud-native, AI-enabled SaaS platform. Oversees product strategy, architecture, microservices, React development, healthcare interoperability, AI/ML integration, security, regulatory compliance, testing, and delivery. Manages programmer analysts, legacy CNET and CAS product updates, technical documentation, change control, second-level support, stakeholder communication, vendor partnerships, and organizational change management.

Designs and maintains AWS, data center, co-location, and network infrastructure. Improves CI/CD pipelines, system reliability, scalability, disaster recovery, and business continuity. Supports migrations, monitors critical systems, collaborates with development and operations teams, and promotes infrastructure best practices.

Lead the company-wide evolution of reliability, platform, and infrastructure engineering across hybrid on-premises and cloud environments. Set architectural direction, improve distributed-system resilience and performance, strengthen cloud and runtime security, and mature incident response through automation and operational practices. Manage, mentor, and develop engineers while leading cross-functional initiatives spanning infrastructure, customer-facing platforms, AI and data systems, and fulfillment automation.

Responsible for maintaining and supporting critical data center operations, including hardware installation, troubleshooting, and collaboration with IT teams.