Senior Lead Jobs

Squarespace provides innovative solutions to empower our customers to focus on building their brand and growing their businesses on our platform. The Databases team manages all of the backend infrastructure that Squarespace runs on – MongoDB, CockroachDB, and Kafka clusters, to name a few examples. We are an accomplished, diverse group of people who develop the services that guarantee reliable and scalable infrastructure for both our cross-functional partners in product engineering, as well as our end users on the Squarespace platform. We believe that infrastructure excellence doesn't stop at just building for today; it needs to have a solid foundation of scalability, reliability, and a robust developer experience for the future. This is a hybrid role working from our Dublin office 3 days per week. You will report to the Databases Senior Engineering Manager. You’ll Get To… Nurture high-performing software engineers by guiding navigation when there is ambiguity. Distill the scope of the team and help hire a balanced group of engineers that will excel as a unit. Grow the career development of direct reports through regular 1:1s with direct, actionable feedback. Celebrate wins that motivate the team’s positive culture and robust dynamic. Evaluate consistently to improve team efficiency and effectiveness when required. Evolve a deep understanding of local systems to identify appropriate architectural decisions. Thread with Product, Design & Engineering to champion, define and execute an optimal roadmap. Bond across Engineering, Product, Design, Marketing, Data Science and Business Operations. Who We’re Looking For 3+ years of recent experience managing a Product Engineering team of four or more engineers. 7+ years of industry experience deploying apps across large codebases with many contributors. Ability to fluently translate, document and present technical concepts to non-technical stakeholders. Strong technical foundations to navigate the inherent tra

Discord has a highly engaged community of millions of daily active users who use the platform for many different reasons, but there’s one thing that nearly everyone does: play video games. Discord plays a uniquely important role in the future of gaming, and we are focused on making it easier and more fun for people to hang out before, during, and after playing games. The Realtime Infrastructure team is responsible for building and maintaining some of Discord’s highest scale and most critical services. Those systems are at the core of our text chat infrastructure and facilitate the dispatching of every update to our users sessions. This role will have a significant impact on Discord’s overall reliability and performance. It will also help our product teams build new features on top of our infrastructure. This team is small but critical, and its work has a direct impact on Discord's success and ability to scale. This role reports to the Senior Engineering Manager of Realtime Infrastructure. What You'll Be Doing Build and operate large-scale, reliable and performant distributed systems. Collaborate with product teams to create new features. Ensure Discord “just works”. Write code but also manage our infrastructure. Work with a talented team of engineers who have built one of the largest communication platforms in the world. What you should have 2+ years of experience writing and designing backend systems. Experience solving complex distributed system problems. Experience operating and maintaining critical tier 0 services. Knowledge of monitoring and alerting best practices. Familiar with open source software, and not afraid to dig into the source code of a library to find the answer you’re looking for. Bonus Points Experience with Elixir or Rust. Experience working with systems deployed in a cloud environment (GCP, AWS, etc.) Knowledge of devops tools like Salt,Terraform or k8s. You have built or contributed to open source projects. You are a Discord power user and hav

Discord has a highly engaged community of millions of daily active users who use the platform for many different reasons, but there’s one thing that nearly everyone does: play video games. Discord plays a uniquely important role in the future of gaming, and we are focused on making it easier and more fun for people to hang out before, during, and after playing games. As the Program Manager, Detection & Enforcement, Youth Safety on the Youth Safety team, you will program manage product and process initiatives that drive more effective and efficient mitigations across the minor safety remit. You will serve as the internal subject matter expert across product, detection, tooling, and bugs, including working with XFN teams to drive safety improvements. You will report into the Senior Manager of Youth Safety. Please note: This role involves exposure to potentially disturbing topics such as child sexual abuse material, exploitation imagery, and grooming-related content. Wellness support is provided. What You’ll be Doing: Drive product and process improvements Recommend and drive youth safety initiatives that reduce average handle time, escalation rates, and help identify additional harms Own product and process improvements for all NCMEC reports, CSAM enforcement, and other child sexual exploitation harms Manage the tooling roadmap for the team, develop and prioritize tool requests Audit operations and report handling, in collaboration with our QA team, to identify processing gaps and root cause issues to drive continuous improvement in detection, moderation, and tooling Partner with our Product Operations teams to ensure internal workflows and tools are supportive of new product launches Advise and guide efforts by supporting Discord stakeholder teams, including Vendor Operations, Data Engineering, Threat Research, and Policy to incorporate user safety initiatives, projects, and planning Ensure delivery of high quality, trauma-informed, person-centered services to pr

Who we are About Stripe Stripe is a financial infrastructure platform for businesses. Millions of companies—from the world's largest enterprises to the most ambitious startups—use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount of work ahead. That means you have an unprecedented opportunity to put the global economy within everyone's reach while doing the most important work of your career. About the team The Strategic Partnerships team develops and manages relationships with large partners that enable Stripe's product strategy and deliver new capabilities to Stripe users. Our team executes on high-impact, cross-functional initiatives across new products, geographic expansion, user advocacy, and policy. These partnerships have a significant impact on Stripe and the products used by millions of our users. We're looking for a senior member to join our team to develop new partnerships with our largest users and strategic partners, and drive critical initiatives that will be foundational for Stripe. A successful candidate will have significant experience delivering complex deal work, creating and driving strategy, working with cross-functional teams to launch new initiatives, and initiating first-of-a-kind partnerships. We're looking for someone who exhibits a strong sense of ownership, performs at a senior level, drives to have an impact, and has an entrepreneurial spirit. What you’ll do Responsibilities Evaluate and develop the business case to support Stripe’s product and engineering investment in new strategic partnerships across verticals (e.g. AI, Platforms, Payment Methods) Manage strategic planning, negotiation and new partnership development Ensure highly structured, methodical deal management rooted in milestones, KPIs, and alignment with partners on opportunities of mutual interest Navigate the largest partners, in partnership wi

About the Team OpenAI’s Agentic Data Science team helps shape how AI agents are built, deployed, and improved across our products. We partner with product, engineering, research, and security teams to define meaningful measures of success, understand how our systems behave in the real world, and translate evidence into better decisions. As AI agents become more capable, they can write and execute code, access sensitive systems, and complete increasingly complex tasks with greater autonomy. These capabilities create powerful opportunities to improve cybersecurity, but they also introduce risks that traditional security tools and processes were not designed to address. Meeting this moment requires new ways to measure security, evaluate defenses, and distinguish genuine risk reduction from friction that slows users down. About the Role We are looking for a senior data scientist to help define what effective cybersecurity looks like in the age of AI agents. You will work across OpenAI’s Security organization and cybersecurity product teams to measure emerging risks, improve internal security controls, and shape AI-powered security products. The problems are foundational: How do we know whether an agent’s security controls are effective? Which safeguards meaningfully reduce risk, and which create unnecessary friction? When an AI system identifies a potential vulnerability, how do we determine whether the finding is accurate, actionable, and ultimately resolved? How do we detect anomalous behavior or risky access when the systems themselves are changing rapidly? You will report into Data Science while partnering closely with Security, Cyber Product, Engineering, and Research. This is a high-ownership role for someone who can establish a new analytical discipline, operate across organizational boundaries, and turn ambiguous security challenges into measurable improvements. In This Role You Will Define how we measure AI-agent security. Establish metrics and evaluation frame

At Trustpilot, we're on an incredible journey. We're a profitable, high-growth FTSE-250 company with a big vision: to become the universal symbol of trust. We run the world's largest open customer review platform, and while we've come a long way, there's still so much exciting work to do. Come join us at the heart of trust! As the Director of Pricing Strategy, you will hold a key role in designing and executing Trustpilot’s monetisation strategy globally, which underpins the company’s growth. Reporting into the Senior Director of Pricing & Monetisation, your main goal will be the optimization and maintenance of our packaging offering, to ensure that our lineup of products offers the right value to our customers, in alignment with our proposition for our different customer segments and markets. As we launch new product features, you will work closely with our Product and Product Marketing teams to decide how to best package them in our plans to optimize upgrade rates and revenue generation from new innovations. In addition to this, a key part of the role will In addition to this, a key part of the role will be future-proofing our monetisation strategy by diversifying our revenue streams. SaaS is constantly evolving and pricing strategies are evolving with it. You will research, design and pilot new monetisation models different and / or additive to the more traditional SaaS subscription model to explore opportunities for innovation that better align the value created for customers to how we price our products and monetise our platform. An entrepreneurial and curious attitude will be fundamental to being successful in this role, as you will often need to deep dive into different topics and collect different perspectives to scope out potential opportunities. Whilst focusing on long-term strategy development will be critical, the successful candidate will also have a ‘get it done’ attitude with a willingness to go above and beyond to deliver

At Trustpilot, we're on an incredible journey. We're a profitable, high-growth FTSE-250 company with a big vision: to become the universal symbol of trust. We run the world's largest open customer review platform, and while we've come a long way, there's still so much exciting work to do. Come join us at the heart of trust! As the Director of Pricing Strategy, you will hold a key role in designing and executing Trustpilot’s monetisation strategy globally, which underpins the company’s growth. Reporting into the Senior Director of Pricing & Monetisation, your main goal will be the optimization and maintenance of our packaging offering, to ensure that our lineup of products offers the right value to our customers, in alignment with our proposition for our different customer segments and markets. As we launch new product features, you will work closely with our Product and Product Marketing teams to decide how to best package them in our plans to optimize upgrade rates and revenue generation from new innovations. In addition to this, a key part of the role will In addition to this, a key part of the role will be future-proofing our monetisation strategy by diversifying our revenue streams. SaaS is constantly evolving and pricing strategies are evolving with it. You will research, design and pilot new monetisation models different and / or additive to the more traditional SaaS subscription model to explore opportunities for innovation that better align the value created for customers to how we price our products and monetise our platform. An entrepreneurial and curious attitude will be fundamental to being successful in this role, as you will often need to deep dive into different topics and collect different perspectives to scope out potential opportunities. Whilst focusing on long-term strategy development will be critical, the successful candidate will also have a ‘get it done’ attitude with a willingness to go above and beyond to deliver result

About the Team The Monetization Data Systems team builds the trusted data and product systems that power how the company develops, measures, and improves monetization products. We bring together product usage, pricing, billing, ads, payments, and financial data to help Product, Engineering, Finance, and GTM teams make better decisions and deliver reliable customer experiences. We work at the intersection of data engineering, product engineering, platform engineering, Finance, and GTM. Our goal is to turn complex monetization and financial data into accurate, explainable, and timely data products while building systems that scale with the growth and complexity of the business. About the Role We are looking for a Senior Software Engineer to design and build the next generation of our monetization data platform. You will own high-impact platform systems end to end, from architecture and implementation through testing, deployment, observability, and ongoing operation. This is a hands-on role for an engineer who enjoys solving ambiguous customer and business problems, designing durable systems, and partnering closely with Product, Data, Finance, Accounting, and GTM. You will help define technical direction, raise the engineering bar, and turn monetization opportunities into reliable, scalable product experiences and platform capabilities. In this role, you will: Design, improve, and operate reliable, scalable backend services that power pricing, billing, ads, payments, entitlements, and other monetization platform capabilities. Own the architecture and implementation of critical workflows relevant to monetization data, data contracts, and integrations across product and business systems. Establish strong guarantees for correctness, availability, security, performance, reconciliation, and auditability across business-critical systems. Build reusable platform capabilities and developer tools that enable product teams to launch, measure, and iterate on monetization products

About the Team Security is at the foundation of OpenAI’s mission to ensure that artificial general intelligence benefits all of humanity. The Secure Manufacturing & Stealth (SMS) team protects OpenAI’s most sensitive product, manufacturing, launch, and partnership work from theft, leakage, espionage, and unauthorized disclosure. We operate across physical, digital, human, and third-party domains, building practical protections that allow teams to move quickly while preserving strict need-to-know controls. About the Role We are seeking a senior Secure Manufacturing & Stealth Partner to serve as the dedicated SMS owner for Marketing. This person will build trusted relationships across Marketing, understand launches and sensitive information flows, identify secrecy risks early, and embed practical controls into planning, creative production, events, agencies, vendors, media, and executive communications. The role owns the Marketing relationship while coordinating shared SMS capabilities when investigative, prototype-handling, regional, or other specialist support is needed. In this role you will: Serve as the primary SMS Partner and trusted adviser to Marketing, building a deep understanding of its priorities, planning cycles, launches, events, external partners, and sensitive information flows. Identify secrecy and information-exposure risks early, then translate SMS requirements into practical controls that protect sensitive work without unnecessarily slowing execution. Build, document, and socialize durable operating mechanisms for compartmentalization, need-to-know access, agencies and vendors, sensitive creative production, events, demonstrations, launch preparation, codenames, watermarking, and password controls. Assess and approve Marketing systems and information workflows, identify gaps or duplication, establish secure handling requirements, and advise AI-native Marketing initiatives on permissions, data governance, and operational tracking. Coordinate

ABOUT THE TEAM Critical Harm Operations sits within User Safety & Risk Operations and builds enforcement systems for Frontier Risk and Material Harm that are accurate, fast, defensible, and built to scale. The Cyber vertical turns policy into reviewer standards, calibrated judgment, quality systems, escalation paths, and automation guardrails. ABOUT THE ROLE We are looking for a senior cybersecurity practitioner and operations strategist to raise the quality, scalability, and technical rigor of our Cyber Operations. You will combine hands-on cyber judgment with systems-level operating design: resolve the hardest dual-use questions, evolve SOPs, uplift reviewers and vendors, and build practical tools and automations. This is a senior IC role. Success is not primarily cases closed; it is durable improvement in the operating model and the reviewers who run it. IN THIS ROLE, YOU WILL: Drive the Cyber Operations operating model across domain priorities, SOPs, escalation paths, quality health, vendor capability, roadmap inputs and help inform trusted access strategies. Serve as the senior cyber expert for complex or high-risk decisions across ChatGPT, API, Codex, agents, and emerging product surfaces. Translate policy ambiguity, quality misses, appeals, and reviewer disagreement into clear decision rules, calibration examples, training, and tooling requirements. Build durable operating systems and quality loops: golden sets, holdouts, double-labeling, adjudication, error taxonomies, reviewer calibration, and automation evaluations. Raise FTE and BPO capability through onboarding, certification, coaching, recurring calibration, and vendor-performance partnership. Use quality, appeals, SLA, backlog, and disagreement signals to diagnose root causes and prioritize high-leverage fixes. Build hands-on solutions—SQL analyses, scripts, dashboards, LLM eval workflows, evidence enrichment, routing logic, and lightweight automations—that improve decision quality and reduce manua

About the Team OpenAI’s GTM Data Science team helps shape how our products are adopted, monetized, and scaled across organizations. We work at the intersection of Product, Go-to-Market, Finance, Research, and Data, turning product usage, customer evidence, and market signals into decisions that grow durable enterprise value. We’re looking for a senior Data Scientist to own the analytical strategy for enterprise knowledge-worker adoption. As ChatGPT Work and Codex become capable of research, analysis, document creation, spreadsheets, presentations, internal knowledge synthesis, and other agentic workflows, you will help determine how these products become embedded in everyday work—not merely tried once. About the Role You will define how we measure activation, retained usage, workflow depth, and value across ChatGPT Work, Codex, and connected enterprise systems. You will explain why adoption succeeds or stalls and identify the product, enablement, and commercial interventions most likely to create durable usage. This is a hands-on, zero-to-one role. You will work through imperfect telemetry, overlapping product surfaces, evolving definitions, and ambiguous business questions. You will partner closely with GTM, Product, Finance, Research, Customer Deployment, Analytics Engineering, and Data Science. Your work is successful when it changes a product, GTM, or investment decision. In This Role, You Will Define a trusted measurement framework for knowledge-worker adoption, including identity, eligible populations, activation, retained usage, penetration, workflow depth, feature adoption, and monetization. Map the knowledge-worker journey from initial exposure through first successful task, repeated workflows, multi-surface usage, and durable adoption. Identify which personas, functions, use cases, product capabilities, and account conditions are associated with deep and retained usage. Design and evaluate experiments and quasi-experiments across onboarding, enablement, wo

About the Team The OpenAI Robotics team is focused on unlocking general-purpose robotics and pushing towards AGI-level intelligence in dynamic, real-world settings. Working across the entire model stack, we integrate cutting-edge hardware and software to explore a broad range of robotic form factors. We strive to seamlessly blend high-level AI capabilities with the constraints of physical systems to improve peoples’ lives. About the Role As a Senior Software Engineer, ML Systems & Training Infrastructure, you will be a deeply hands-on engineering force multiplier for the robotics team. You will help keep the training framework and surrounding infrastructure healthy, review and improve code quickly, debug failures across ML systems and infrastructure, and unblock researchers and engineers when the path from idea to working training job gets rough. We’re looking for people who love writing, reading, reviewing, and fixing code; who can get productive quickly in unfamiliar systems; and who bring strong practical judgment without a lot of ego or process overhead. This role will be based in San Francisco, CA and be expected in office 5 days per week and offer relocation assistance to new employees. In this role, you will: Review, improve, and clean up code across training frameworks and adjacent infrastructure. Identify risky or low-quality changes before they land, and raise the code quality bar without slowing the team down. Debug issues across ML training systems, GPUs, clusters, networking, and related infrastructure. Help researchers and engineers unblock broken training jobs, flaky workflows, and brittle internal tooling. Improve the reliability, maintainability, and usability of the robotics team’s training framework. Move quickly on practical engineering problems that directly affect team velocity. You might thrive in this role if you: Have strong software engineering fundamentals and excellent code review judgment. Have experience with ML systems, training fr

About the Team The Safety Systems team is responsible for various safety work to ensure our best models can be safely deployed to the real world to benefit the society, and is at the forefront of OpenAI's mission to build and deploy safe AGI, driving our commitment to AI safety and fostering a culture of trust and transparency. The Safety Oversight Research team aims to fundamentally advance our capabilities to maintain oversight over frontier AI models, and leverage these advances to ensure OpenAI’s deployed models are safe and beneficial. This requires a breadth of new ML research in the areas of human-AI collaboration, reasoning, robustness, and scalable oversight to keep pace with model capabilities. We invest heavily in developing novel model and system-level methods of identifying and mitigating AI misuse and misalignment. Our goal is to learn from deployment and distribute the benefits of AI, while ensuring that this powerful tool is used responsibly and safely. About the Role OpenAI is seeking a senior researcher with a passion for AI safety and experience in safety research. Your role will set directions for research to maintain effective oversight of safe AGI and work on research projects to identify and mitigate misuse and misalignment in our AI systems. You will play a critical role in defining how a safe AI system should look in the future at OpenAI, making a significant impact on our mission to build and deploy safe AGI. In this role, you will: Develop and refine AI monitor models to detect and mitigate known and emerging patterns of misuse and misalignment. Set research directions and strategies to make our AI systems safer, more aligned, and more robust. Evaluate and design effective red-teaming pipelines to examine the end-to-end robustness of our safety systems, and identify areas for future improvement. Conduct research to improve models’ ability to reason about questions of human values, and apply these improved models to practical safety challen

About the Team The Youth Well-Being product team is part of the Integrity pillar at OpenAI, responsible for ensuring that our state-of-the-art AI technologies are deployed in safe, age-appropriate, and beneficial ways—especially for youth and families. We work across OpenAI’s entire product surface area, from ChatGPT to future-facing tools, to architect safety and trust into the foundation of our systems. Our mission: empower families while meeting the highest standards of regulatory compliance and ethical responsibility. This work is core to OpenAI’s mission to ensure AGI benefits all of humanity. Safety, especially for the most vulnerable users, is more important to us than unfettered growth. About the Role We’re looking for a Senior Software Engineer to help architect and build the foundational systems that power family- and youth-facing experiences at scale. You’ll help define how teens and guardians engage with OpenAI products—ensuring those experiences are safe, compliant, and empowering. You’ll operate across a broad technical surface: building identity primitives, age assurance pipelines, and guardian tools that support both proactive and reactive interventions. You’ll collaborate closely with a cross-functional team of engineers, data scientists, designers, user researchers, and policy experts. This is a high-impact, 0→1 opportunity to set the standard for how families interact with generative AI. In this role, you will: Architect and implement teen and guardian experiences across OpenAI products, including ChatGPT. Build global age assurance systems that are privacy-preserving and tailored to regional compliance needs. Design and evolve our identity infrastructure to support scalable, secure, and resilient user journeys at consumer internet scale. Help define safety and well-being metrics, and continuously improve user trust through technical interventions. You might thrive in this role if you: Have built products or infrastructure for users under 18, or h

About the Team OpenAI’s Applications Engineering organization builds and operates the products that bring our cutting-edge research to millions of users and developers worldwide. The Applied Foundations team owns the core product and platform layers that make those experiences possible — from identity & access, to safety to payments & commerce across all of our apps. Our teams span product engineering, infrastructure, and safety, working together to deliver technology that is reliable, secure, and trusted at global scale. About the Role You will be a Senior Android engineer on OpenAI’s Applied Foundations team, building the core mobile experiences that power how users sign up, manage their account, family features, pay for services, stay safe, and interact with OpenAI’s products with confidence. This role is about creating high-quality products as well as reusable Android foundations that product teams across different OpenAI apps depend on to ship quickly while meeting the highest standards for security, reliability, and user trust. You’ll own complex client-side systems spanning UI, networking, local state, payment integrations and Apple platform integrations, and work closely with backend, product, and safety partners to shape the architecture that supports OpenAI’s mobile ecosystem at global scale. You might thrive in this role if you: Have 4+ years of professional software engineering experience. Have a proven track record of building high-quality Android applications in production. Are fluent in Kotlin (and/or Java) and familiar with Android development tools and architecture components. Prioritize performance, security, and user experience in mobile development. Enjoy working cross-functionally to bring ambitious product ideas to life. Care deeply about performance, security, and user experience. About OpenAI OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. We