Experienced Product Security Engineer Signing Bonus Potential in San Francisco

Scale’s ML platform (RLXF) team builds our internal distributed framework for large language model training and inference. The platform has been powering MLEs, researchers, data scientists and operators for fast and automatic training and evaluation of LLM's, as well as evaluation of data quality. Scale is uniquely positioned at the heart of the field of AI as an indispensable provider of training and evaluation data and end-to-end solutions for the ML lifecycle. You will work closely across Scale’s ML teams and researchers to build the foundation platform that supports all our ML research and development. You will be building and optimizing the platform to enable our next generation of LLM training, inference and data curation. If you are excited about shaping the future AI via fundamental innovations, we would love to hear from you! You will: Build, profile and optimize our training and inference framework Collaborate with ML teams to accelerate their research and development and enable them to develop the next generation of models and data curation Research and integrate state-of-the-art technologies to optimize our ML system Ideally you’d have: Strong excitement about system optimization Experience with multi-node LLM training and inference Experience with developing large-scale distributed ML systems Strong software engineering skills, proficient in frameworks and tools such as CUDA, Pytorch, transformers, flash attention, etc. Strong written and verbal communication skills and the ability to operate in a cross functional team environment Nice to haves: Demonstrated expertise in post-training methods &/or next generation use cases for large language models including instruction tuning, RLHF, tool use, reasoning, agents, and multimodal, etc. Compensation packages at Scale for eligible roles include base salary, equity, and benefits. The range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the positi

About Scale At Scale AI, our mission is to accelerate the development of AI applications. For 8 years, Scale has been the leading AI data foundry, helping fuel the most exciting advancements in AI, including: generative AI, defense applications, and autonomous vehicles. With our recent Series F round, we’re accelerating the abundance of frontier data to pave the road to Artificial General Intelligence (AGI), and building upon our prior model evaluation work with enterprise customers and governments, to deepen our capabilities and offerings for both public and private evaluations. About Data Engine Our Generative AI Data Engine powers the world’s most advanced LLMs and generative models through world-class RLHF (Reinforcement Learning with Human Feedback), human data generation, model evaluation, safety, and alignment. The data we are producing is some of the most important work for how humanity will interact with AI. Our Approach As part of the interview process, you’ll be considered for opportunities across several teams within the GenAI Engineering organization, based on your interests, expertise, and business needs. Potential team placements include Allocation, Growth, Frontier Data, Trust & Safety, Pay, Operator, or Tasking Experience. Together, these teams power Scale’s AI data operations - from building high-impact datasets that push the boundaries of LLM capabilities, to optimizing contributor onboarding and incentives, to safeguarding data integrity through advanced trust, safety, and security measures. They work at the intersection of ML, operations, and analytics to ensure we deliver the highest-quality data at scale. Responsibilities: Design, build, and maintain robust, scalable systems across the full stack, including front-end, back-end, and infrastructure layers Implement high-impact features using modern technologies such as TypeScript, React, Node.js, MongoDB, Elasticsearch, and Temporal Collaborate closely with internal operators (your use

Scale AI is seeking a highly motivated Senior Accountant to join our growing accounting team and assist in preparing day to day corporate accounting operations, supporting the month end close process, and helping to implement systems and processes that will support Scale as we continue to grow. You will also gain exposure to working with our international entities as we continue our expansion globally, working on some of the highest value aspects of the busienss. The ideal candidate thrives in a high-growth start-up, is detail-oriented, and has excellent interpersonal and communication skills. Additionally, the candidate has demonstrated the ability to build scalable cross-functional relationships through systems and process implementation. We hope you will join our team! You Will: Prepare journal entries and day to day corporate accounting activities, support the month end close process, and provide timely and accurate month-end close financials that are U.S. GAAP compliant Build or enhance balance sheet account reconciliation workpaper including reviewing and performing some clean-up of historical reconciliations and related balances Collaborate within Accounting and Finance teams on metrics, flux analysis, forecast, and projections and support preparation of the monthly reporting package Prepare documents supporting internal and external audits and ensure the successful completion of those audits Support the implementation of new systems, tools, and processes to streamline close and build scalable solutions to support the growth of the Company Identify and drive process improvements to gain efficiencies and reduce close timeline Develop, maintain and improve internal controls which relate to assigned areas Ideally You Have: Bachelor’s degree in Accounting; CPA or in the process of working towards one is preferred. 3+ years of relevant accounting experience; Combination of public accounting and industry experience preferred. Strong knowledge of U.S. GAAP. Ex

About the Team DoorDash Labs is an independent team within DoorDash. We explore robotics and automation to transform last mile logistics in the long term. If you have a passion for applying robotics solutions in a service used by millions of people, then we want to talk to you! About the Role We're hiring a Robotics Infrastructure Engineer in our Autonomy Software team. In this role, you'll own, build, and manage the infrastructure that makes aerial autonomy development possible. You'll work on the onboard systems that keep a drone alive (process management, health monitoring, parameterization) and the development environment that makes the team fast (build systems, CI/CD, logging, debugging, regression testing). This is not cloud infrastructure. This is real-time, fault-tolerant, onboard software for vehicles that cannot gracefully restart at 50 meters altitude. You're excited about this opportunity because you will… Play an integral role on a small and focused team Develop and own critical onboard components: process management, health monitoring, configuration management, and message passing Own the build system (C++, Python) and middleware layer (ROS2), including cross-compilation for Jetson targets Design and maintain CI/CD pipelines and regression testing infrastructure Build and manage the parameterization system, including schema definition, validation, migration, and deployment Build robotics logging, plotting, and debugging tools that make the entire team more productive Work closely with the simulation team to support SIL/HIL development workflows Define reliability standards for onboard software: watchdogs, failover, and graceful degradation We're excited about you because… You have prior experience at a robotics company in a similar infrastructure role You have experience with robotics middleware (ROS2, LCM, eCal, Apex.AI) You have experience with build systems and package managers (CMake, Bazel, Nix, Conan) You have experience with NVidia Jetson and Je

About the Team DoorDash Labs, established in 2018, serves as the innovation hub for DoorDash, focusing on developing automation and robotics solutions to enhance last-mile logistics. The team's mission is to create technologies that support and augment human networks, aiming to improve efficiency for Dashers, merchants, and consumers alike. We’re ruthlessly focused on business impact. We are a highly senior team composed of former pioneers from a variety of different robotics industries. As of 2025, DoorDash has completed 10B lifetime deliveries. We’re focused on how to do the next 10B even better. About the Role We are seeking a highly motivated Senior/Staff Test Engineer to join our team. This individual will play a key role in the development and validation of our unmanned platforms at the system and component levels. The ideal candidate has a strong background in test development, test execution, and root cause analysis with a proven track record of collaboratively managing risk throughout a fast paced development process. You’re excited about this opportunity because you will… Run and monitor tests within our facility as well as at outside test labs. Collaborate with a tight knit team to identify and understand test failures. Be hands-on in developing test methods and equipment to uncover failures before they happen in the field. Find clarity through root cause analysis of lab and field failures and suggest design changes to prevent them. Use your creativity to create novel and scaled tests for autonomous systems. We’re excited about you because you have… A bachelors or advanced degree in a relevant engineering discipline. Mastery of test equipment such as environmental chambers, vibration tables, water testers, DAQs, etc.. Ability to bring order to complex test and development programs via clear technical communication and documentation. Experience designing and building testers and equipment. Ability to write Python scripts to automate

At Lyft, our purpose is to serve and connect. We aim to achieve this by cultivating a work environment where all team members belong and have the opportunity to thrive. Lyft is looking for a seasoned Sr. Manager, Accounts Payable, tto join our Controllership organization. In this high-impact leadership role, you will own Lyft’s end-to-end AP, which includes the T&E and corporate card programs. The role spans domestic and international operations—and serves as a key strategic and operational leader overseeing how the company pays its corporate suppliers, manages vendor relationships, and scales its procure-to-pay processes. You will lead a team of managers and individual contributors located across multiple locations, and partner closely with Finance, Procurement, Treasury, Legal, Tax, and the broader business to ensure operational and compliance excellence at scale. This role is uniquely positioned at the intersection of operational rigor, global expansion, and financial transformation—making it ideal for a leader who thrives on building world-class teams, deploying automation intelligently, and delivering best-in-class supplier experiences. Responsibilities: Team Leadership & Development Lead, mentor, and develop a multi-layered team of AP managers and staff distributed across the multiple locations, fostering a culture of accountability, continuous improvement, and growth. Set clear performance expectations, provide regular coaching and feedback, and support career development pathways for all direct and indirect reports. Build organizational capacity by identifying skill gaps, championing training initiatives, and creating succession plans for critical roles. Model Lyft’s values and leadership principles, cultivating a high-trust, inclusive, and results-oriented team environment. AP and T&E Operations & Procure-to-Pay Collaborate with business partners on the full end-to-end procure-to-pay cycle including Global Supply Management and Procurement O

Employee Applicant Privacy Notice Who we are: Shape a brighter financial future with us. Together with our members, we’re changing the way people think about and interact with personal finance. We’re a next-generation financial services company and national bank using innovative, mobile-first technology to help our millions of members reach their goals. The industry is going through an unprecedented transformation, and we’re at the forefront. We’re proud to come to work every day knowing that what we do has a direct impact on people’s lives, with our core values guiding us every step of the way. Join us to invest in yourself, your career, and the financial world. The role Help Build the Next Iconic Financial Brand Social is where brands earn relevance through culture, speed, creativity, and trust. SoFi is looking for a Brand Director, Social Strategy to help lead the next era of our social brand presence — building breakthrough strategies, developing platform-native content, and shaping how millions of people experience SoFi online. This person will play a critical role in building awareness, making SoFi a household name, and driving long-term brand equity through social-first storytelling, cultural relevance, and best-in-class execution across platforms. This role is for someone who understands both internet culture and brand building. Someone who can present a strategic vision to senior leadership, then jump into the feed and execute. Someone equally comfortable developing highly produced campaigns and scrappy content that cuts through because it feels native to the platform. We’re at a critical moment in growth. Our opportunity is massive across sports, creators, partnerships, live events, and social platforms and we need a leader who can help turn that momentum into awareness, consideration, and brand love. You’ll lead a small, high-impact team responsible for: Building social strategies that break through Leveraging member data and social trends to drive social

#Team Nextdoor Nextdoor (NYSE: NXDR) is the essential neighborhood network. Neighbors, public agencies, and businesses use Nextdoor to connect around local information that matters in more than 350,000 neighborhoods across 11 countries. Nextdoor builds innovative technology to foster local community, share important news, and create neighborhood connections at scale. Download the app and join the neighborhood at nextdoor.com . Meet Your Future Neighbors Nextdoor's Client Partner team is a diverse, driven, and strategic group of sales professionals focused on connecting brands with our community of neighbors through our growing portfolio of advertising solutions. The team culture mirrors our broader business, relying on trusted relationships, collaboration, and a shared commitment to delivering value for both advertisers and neighbors. We're a purpose-driven company looking for curious, customer-focused sales professionals who are passionate about helping businesses grow, solving complex marketing challenges, and building a culture of belonging. At Nextdoor, we operate in an AI-first environment. We value people who thoughtfully integrate AI into their daily work—not simply to automate tasks, but to improve decision making, deepen customer insights, and enhance execution. We look for candidates who combine AI curiosity with strong human judgment and accountability for the final outcome. We also offer a warm and inclusive work environment that embraces a hybrid employment model, blending an in office presence and work from home experience for our valued employees. The hiring team will go over these expectations with you if you are being considered for a role near one of our offices in San Francisco, Los Angeles, Chicago, Dallas, New York, and London. The Impact You’ll Make As a Client Partner, you'll play a critical role in driving growth across Nextdoor's San Francisco and greater West Coast markets. You'll own a strategic territory across the regio