Top Tech Jobs & Startup Jobs in Seattle, WA

Build and maintain low-level networking software that interfaces accelerators and high-speed networks. Diagnose and optimize kernel- and user-space networking (layers 2-4), implement collectives/RPC, benchmark and improve congestion control, and develop drivers and protocols to reduce latency for distributed ML workloads.

Manage end-to-end payroll operations for the US and Canada, oversee team development, ensure compliance, and lead AI adoption in payroll processes.

Own end-to-end silicon program activities including specification, technology/IP selection, architecture tradeoffs, hardware-software co-design, and first-silicon bring-up/debug. Partner with external ASIC/IP/foundry partners, build AI-assisted design workflows, and drive directional technical decisions across chip domains from front-end to packaging and test.

Build, maintain, and improve algorithms and infrastructure for finetuning and RL training (RLHF) of large language models. Improve speed, reliability, and usability of training pipelines through profiling, instrumentation, debugging GIL contention, launching test jobs, and implementing research algorithms to support production and internal model training.

Lead system-level architecture for large-scale AI compute: define specs, evaluate vendor designs, drive interconnect, power, thermal, and reliability strategies, develop validation and bring-up plans, and partner with ML, infrastructure, and supply chain teams.

Design and build real-time risk decisioning and tooling to prevent payments fraud. Implement fraud signals at scale, manage dispute and chargeback workflows, monitor metrics (loss, dispute, approval, false positives), lead investigations into emerging fraud patterns, and collaborate cross-functionally with finance, support, legal, data science, and external payment partners.

Lead technical accounting for complex infrastructure and energy contracts, ensuring financial statement accuracy and compliance with relevant accounting standards.

Design, build, and maintain integrations between ERP and financial systems using iPaaS; develop APIs, webhooks, and authentication flows; support ERP implementation, monitoring, and error handling; expand into Claude-powered AI automation and data pipelines using Airflow, dbt, and cloud data warehouses to enable reliable financial reporting and automation.

Join the Web Product team to develop features for Claude.ai, transform user interaction, and enhance AI collaboration. Full-stack work across frontend and backend.

As a Technical Program Manager, you'll coordinate infrastructure programs, enhance developer productivity, ensure system reliability, and foster cross-team collaboration.