Senior RF Engineer

What you’ll do Be the generalist EE for the scanner system: integration, bring-up, debugging, and making the electrical side of the device reliable and serviceable. Own ultrasound experimentations that feeds the image reconstruction team Design and execute experiment setups for transducer characterization (element sensitivity, bandwidth, cross-talk mapping, beam profile measurements) and ex vivo / phantom clinical testing. Acquire, process, and analyze RF and baseband signals for data quality assessment and benchmarking. Design simple boards and adapters as needed (monitoring, power/safety, interface/conditioning), and take them from prototype through a stable revision. Prototype quickly, then harden what works: wiring/harnessing, grounding, safety interlocks, and reliable integration across subsystems. Own practical test setups and documentation (fixtures, scripts, procedures) that make experiments repeatable and results comparable over time. What we’re looking for Strong hands-on EE background with experience building, debugging, and iterating on real systems in the lab. Solid understanding of signal processing fundamentals — knows what to measure, how to condition and digitize it, and how to evaluate signal quality in the context of an imaging system (SNR, bandwidth, dynamic range, artifacts). Comfortable spanning system integration + occasional design work (schematics/layout reviews or light PCB design) in a fast-moving environment. Ability to work at the boundary between hardware and algorithms: measure reality, communicate constraints, and help close gaps vs simulation. High agency and practicality: able to set up experiments, get trustworthy data, and unblock others on a lean team. Useful experience Analog/mixed-signal, or high-speed data capture experience; strong instincts for instrumentation and noise/debugging. Ultrasound or acoustic sensor handling: hydrophone calibration and field mapping, transducer impedance characterization, element-level sensitivity

Who are we? Cohere is the leading security-first enterprise AI company. We build cutting-edge foundation AI models and end-to-end products that are designed to solve real-world business problems. We’re training and deploying frontier models for enterprises who are building AI systems. We believe that our work is instrumental to the widespread adoption of AI and we are looking for folks that want to be part of that. We obsess over what we build. Each one of us is responsible for contributing to increasing the capabilities of our models and the value they drive for our customers. Cohere is a team of researchers, engineers, designers, and more, who are all passionate about their craft. We are a global technology company headquartered in Toronto with key offices in London, New York City, San Francisco, Montreal, Paris, Berlin and Seoul. Join us! Senior Account Executive - Technology Why this role? In this role, you will have ownership of the full sales cycle - from identifying leads to closing deals with Global 2000, large enterprises within the Technology sector. We're looking for an approachable and compelling communicator who loves working with prospects to uncover their needs and feels comfortable developing tailored value propositions around how Cohere's platform can help them achieve their business goals. You'll lay the foundation for Cohere's growth by owning your territory and collaborating with teammates across customer success, sales development, marketing, and solution architecture. You'll be the voice of the field and help our product and engineering teams prioritize the Cohere roadmap with customer-centric care. It's a highly self-directed role, so you should be someone who thrives in an unstructured and quickly evolving environment. And your opportunity for impact will be astronomical — Cohere has skies-the-limit potential, and you'll help us reach it. As an Account Executive focused on the Technology sector you will: Focus on net-new logo acquisition via

About the Team OpenAI’s Real Estate & Workplace (REW) team creates and operates the spaces that support our people and our mission. Within REW, the Strategic Occupancy Planning team connects business needs, workplace strategy, and space data to help shape where and how our teams work. We partner closely with business leaders, Finance, People, Workplace Operations, and Design & Construction to anticipate growth, optimize space utilization, and deliver a thoughtful, scalable workplace experience. About the Role We’re looking for an experienced Occupancy Planning & Workplace Strategy Manager to lead strategic space planning for our Go-to-Market (GTM) and General & Administrative (G&A) organizations. In this role, you’ll translate evolving business needs into actionable occupancy strategies, capacity scenarios, and workplace recommendations. You’ll serve as a trusted partner to business leaders, balancing growth projections, operational requirements, and employee experience to inform decisions about how our teams use space. You’ll own planning across a complex, evolving portfolio while leveraging CAFM/IWMS systems and data analytics to drive accurate, scalable decision-making. This role requires a combination of strategic thinking, hands-on technical expertise, and strong cross-functional partnership to turn planning recommendations into operational outcomes. This role is based in San Francisco. We use a hybrid work model of three days in the office per week, with approximately 10–20% travel. In This Role, You Will Own strategic occupancy planning for GTM and G&A organizations, translating headcount forecasts, business priorities, and workplace needs into actionable space plans. Develop and evaluate capacity scenarios, neighborhood strategies, team adjacencies, seating models, and space allocation recommendations to support organizational growth. Partner with business leaders and executive stakeholders to understand evolving requirements, communi

About the Team OpenAI’s Procurement team makes working with the world easy, fast, and safe. We connect supplier readiness, purchasing, invoicing, and payment so teams can move with confidence as OpenAI scales. Accounts Payable and Supplier Master Data Operations provide the trusted data, dependable execution, and financial discipline behind that experience. About the Role OpenAI’s compute infrastructure depends on controlled execution of significant supplier spend. As Senior Manager, Accounts Payable — Compute, you will own payment readiness and material exceptions across large-value, business-critical obligations. Complex agreements evolve through amendments to pricing, capacity, service credits, billing mechanics, legal entities, and payment schedules. You will translate approved obligations into accurate, timely payments while navigating supplier disputes, late approvals, close deadlines, and cross-system dependencies. We’re looking for a hands-on technical and operational leader who can interpret complex payment terms, reconcile financial data, diagnose system failures, and build scalable workflows. Coordinating across multiple Compute Finance and Accounting teams is a core responsibility: you will establish decision owners, align deadlines, and move interdependent work forward in parallel. You will set the compute AP operating plan and lead delivery with Procurement, Treasury, Tax, Finance Systems, and existing processing teams, with measurable improvements in controls, service, and capacity. Location: This role is based in San Francisco, CA. We use a hybrid work model of 3 days in the office per week and offer relocation assistance to new employees. In this role, you will: Own the compute invoice-to-payment operating plan, prioritize material exceptions, and lead supplier escalations across complex, high-value obligations and tight payment deadlines. Interpret executed contracts and approved amendments affecting pricing, capacity, credits, billing mechanics, e

About the Team OpenAI's Legal team plays a crucial role in furthering OpenAI's mission by tackling innovative, fundamental legal issues in AI. If you're passionate about doing significant and unique work as a technology lawyer, this team is for you. The team comprises professionals from diverse fields, including technology, AI, privacy, IP, corporate, employment, tax law, regulatory, and litigation. About the Role As a member of our Product Counsel team, you will advise on a broad range of issues arising from hardware products and technologies, with a focus on software that power them. You’ll work closely with software engineering, product, design, and business teams from development through launch and ongoing support. This is a unique opportunity to engage directly with the forefront of AI legal issues. This role reports to our DGC of Hardware. This role is based in San Francisco, CA. We use a hybrid work model of 3 days in the office per week and offer relocation assistance to new employees. In this role, you will: Work closely with product and engineering teams, participate in architecture and product reviews, and advise throughout development, launch, and ongoing support. Support software and firmware licensing, open-source, compatibility and ongoing device support. Provide broad product counseling on consumer experiences, user terms, disclosures, marketing claims, consumer protection and regulatory requirements. Advise and coordinate on product, commercial, IP, privacy, security, competition, and regulatory legal issues so product decisions and external commitments are consistent. Build practical guidance and review processes, adapt support to changing priorities, and take ownership of emerging issues across teams. You might thrive in this role if you: Have 8+ years of relevant legal experience, including substantial product counseling for consumer devices, software embedded in hardware, gained in-house, at a technology-focused law firm, or both. Can work with

Who We Are Notion is the collaborative AI workspace where teams and agents think together . We're building one place where your knowledge, projects, meetings, and AI tools live side by side, so work is faster, clearer, and less fragmented. Millions of individuals, small teams, and large companies run their work on Notion. Notinos (our employees) are customer zero in bringing this future of work to life. We care about craft, building things that last, and the belief that great work is still fundamentally human. Our goal isn’t to ship the next feature. Each and every team of Notinos is working to set the standard for how humans work together in the AI era. From building a business’s system of record to making and managing AI agents to automating away the busy work, we care deeply about giving our customers more time for their life’s work. About the Role: Notion is building the connected AI workspace where teams and agents think together, bringing knowledge, projects, meetings, and AI tools into one place. Joining Corporate Accounting means helping build the financial foundation for a business shaping how work gets done in the AI era. As a Senior Accountant on Corporate Accounting, you’ll own key areas of general ledger accounting and the month-end close, helping ensure accurate, timely reporting. You’ll partner closely with FP&A and cross-functional stakeholders to explain fluctuations, surface issues, and support accurate reporting at Notion’s scale. This role is based in San Francisco. We work from our offices on Mondays, Tuesdays and Thursdays (our Anchor Days) because we do our best thinking and building together in person. We’re looking for someone who’s excited to work alongside the team during those days. What You'll Achieve: Own assigned areas across monthly, quarterly, and annual close: Prepare accurate journal entries and adjustments with clear supporting documentation, and complete close work on time. By your 90th day, independently manage your assigned