Lead Principal Engineer Jobs

Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 130 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit www.redditinc.com . The Reddit Consumer Engineering organization builds and scales the products that Redditors use directly to discover content, participate in communities, and connect with others. Sitting at the intersection of large-scale distributed systems and core user journeys, Product Backend Engineers in Consumer Engineering partner directly with Product Managers, Designers, Data Scientists, ML Engineers, and Frontend Engineers to build, experiment with, and scale features that power how hundreds of millions of users discover, join, navigate, and engage with Reddit. This centralized role hires across several high-impact consumer teams, including: Core Product & Feeds: Home Experience, Recommendations & Content Discovery, Contribution Community & Presence: Reddit Pro, Youth Experience & Teen Safety, Creator Tools Growth & Engagement: Authentication, Notifications, Social Sharing, SEO, Onboarding. Monetization & Conversion: Paid User Acquisition, Conversion Funnel Optimization Identity & Security: Account Management, Trust & Safety What You’ll Do Build and evolve user-facing iOS experiences that help people discover, consume, create, and engage with content and communities. Lead projects through the full development lifecycle, from product definition and technical design to implementation, experimentation, launch, and ongoing improvement. Partner with product, design, data science, ML, backend, and platform teams to shape strategy, translate technical capabilities into intuitive experiences, and delive

Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 130 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit www.redditinc.com . Who We Are: The Knowledge Graph Platform team builds the foundational systems that help Reddit understand entities, relationships, and context across its content. We are evolving an advanced, AI-powered knowledge graph into a reliable, scalable platform that enables teams across Reddit to build better experiences on top of shared, high-quality knowledge. This is a high-leverage team at the intersection of data, platform engineering, and AI. Our work supports emerging capabilities such as contextual grounding while creating the contracts, standards, and developer experience that make shared data dependable and easy to use. This team is strategically positioned to impact both ads and consumer roadmaps. Our data is used across ads marketplace models as well as user-facing features on reddit.com . What You’ll Do: Lead, coach, and develop a team of engineers building Reddit’s Knowledge Graph Platform; create a high-trust, high-performing environment with clear goals and strong technical ownership. Set the technical direction and roadmap for a scalable knowledge graph platform, including data and API contracts, service interfaces, reliability, observability, performance, and developer experience. Leverage SOTA LLM and agentic patterns for knowledge graph construction. Establish production-grade operating standards: defining SLOs, implementing quality measures of data within the knowledge graph, governance mechanisms, and safe change-management practices. Partner with engineering, computational linguists, and domain-expe

Join us in building the future of finance. Our mission is to democratize finance for all. An estimated $124 trillion of assets will be inherited by younger generations in the next two decades. The largest transfer of wealth in human history. If you’re ready to be at the epicenter of this historic cultural and financial shift, keep reading. About the team + role We are building an elite team, applying frontier technologies to the world's biggest financial problems. We're looking for bold thinkers. Sharp problem-solvers. Builders who are wired to make an impact. Robinhood isn't a place for complacency, it's where ambitious people do the best work of their careers. We're a high-performing, fast-moving team with ethics at the center of everything we do. Expectations are high, and so are the rewards. The Brokerage Platform org is the backbone of everything Robinhood trades, clears, and settles. It is the underlying infrastructure that powers every equities trade, every options contract, every event contract, and every crypto transaction that moves through our platform — and it is the foundation on which Robinhood's most important business lines are built. The org spans four deeply interconnected teams: Market Data & Symbology (the real-time and reference data layer that the entire product experience depends on), Trading Platform (core order routing, execution management, and bulk order systems), Clearing (settlement, margin, security lending, cash sweep, and the full back-office operations stack), and Brokerage Infrastructure (the platform layer that enables every product team to move faster through abstractions, reliability investments, and next-generation stack modernization). This org operates 24 hours a day around critical market functions — from market open to trade settlement — and when things go wrong, it matters. As the Director of Engineering, Brokerage Platform , you will lead one of Robinhood's largest and most consequential engineering organizations. You

Beacon Biosignals is transforming precision medicine for the brain, from clinical development to clinical care. For Life Sciences partners, we offer the leading at-home EEG platform for clinical development of novel therapeutics for neurological, psychiatric, and sleep disorders. Our Diagnostics business is building the most comprehensive at-home platform for precision diagnostics, combining EEG and cardiopulmonary signals to deliver reimbursable assessments for sleep and central nervous system disorders. Together, we're changing the way patients are diagnosed and treated for any disorder that affects brain physiology. Beacon Biosignals is seeking a Staff Software Engineer to join our Datastore team. The Datastore sits at the heart of Beacon's platform. It defines our foundational data model and serves as the centralized repository and API for brain data collected from clinical studies, supporting the analytical tools, services, and applications used by our scientists, clinicians, and partners. This role emphasizes the design and scaling of backend systems for data infrastructure: PostgreSQL data models, Kafka-driven event pipelines, and the GraphQL API that makes scientific and clinical data usable - distinct from frontend development or end-user product surfaces. At this level you will lead the design of complex systems within the Datastore rather than individual components, own the pipelines that deliver dataset snapshots into our warehouse, and collaborate across platform, application and scientific teams to implement APIs that unlock new workflows in Beacon's expanding portfolio of clinical studies and digital health products. You should have experience writing complex SQL queries by hand, and should be prepared to reason about schema design, indexes, and query behavior as a matter of course. Two properties of our system that shape our work may influence your application. Our GraphQL API is generated from the PostgreSQL schema using PostGraphile, so a schema de

Ready to do the most impactful work of your career? At Coinbase , we are uncompromising on our mission to increase economic freedom. The bar is high, the environment is intense, and we like it that way. This isn't a place for complacency, it’s a place to be pushed past your perceived limits. If you're ready to build the future of finance alongside people who refuse to settle for "good enough," you belong here. Coinbase is a remote-first, but not remote-only company. Expect to get together quarterly for intense in-person working sessions called “surges.” learn more about working at Coinbase . As the Senior Manager, Digital Securities & Market Structure Policy, you'll be a critical stakeholder in Coinbase's engagement with the SEC on digital asset market structure, trading, and issuance rulemaking. You'll be deeply engaged in the rulemaking process, bringing deep corporate finance, trading, and issuance expertise to bear on active rule proposals, comment letter strategy, and requests for no-action or exemptive relief. This role shapes how Coinbase navigates the evolving U.S. securities regulatory landscape, translating proposed and final rules into actionable guidance for Legal, Product, and executive stakeholders. What you'll do: Drive Coinbase's engagement on active and pending SEC rulemakings related to market structure, trading, and securities issuance, ensuring Coinbase's positions are well-represented throughout the rulemaking lifecycle. Lead the development of Coinbase's comment letter strategy in response to SEC proposals affecting digital asset markets, drafting or directing substantive responses that advance Coinbase's regulatory objectives. Build and maintain relationships with SEC staff and Commissioners' offices, positioning Coinbase as a credible, constructive participant in the policy process. Translate proposed and final rules into internal guidance for Legal, Product, and executive stakeholders, identifying compliance implications, ope

About the Job: We are looking for a talented Senior Solutions Engineer at LaunchDarkly, you will be a trusted technical advisor to our largest and most important Enterprise prospects and customers. This role is a critical part of the Enterprise sales strategy at LaunchDarkly, serving as a trusted technical advisor to sales working to both land new customers and expand existing customers. The ideal candidate will have deep expertise in supporting multiple verticals. An ideal candidate is curious, excels in active listening, quickly and effectively builds custom demos and solutions, and demonstrates profound technical expertise with a customer-centric focus. Responsibilities: Drive technical discovery, architecture design, and PoC implementation throughout the pre-sales lifecycle. Partner with Account Executives and Customer Success Managers to craft compelling technical value propositions. Deliver high-impact demonstrations, workshops, and proposals tailored to C-level and technical stakeholders. Cultivate trust and credibility with customers, identifying technical champions and positioning as a strategic advisor. Liaise between customers and internal Product and Engineering teams to relay feedback and influence product roadmap. Lead cross-regional technical initiatives and enhance SE tools, processes, and frameworks for global scalability. Mentor junior team members, foster technical excellence, and share industry best practices across the SE team. Maintain expert-level knowledge of LaunchDarkly’s platform, integrations, industry trends, and emerging technologies. Respond to RFPs, and manage technical environments to support enterprise sales motions. Translate complex client requirements into scalable, sustainable, and technically sound solutions. Represent LaunchDarkly at industry events and customer engagements through travel as needed. Qualifications: 8+ years of experience in a solutions engineering, sales engineering, or systems architecture customer-faci

Who We Are HP IQ is HP’s new AI innovation lab. Combining startup agility with HP’s global scale, we’re building intelligent technologies that redefine how the world works, creates, and collaborates. We’re assembling a diverse, world-class team—engineers, designers, researchers, and product minds—focused on creating an intelligent ecosystem across HP’s portfolio. Together, we’re developing intuitive, adaptive solutions that spark creativity, boost productivity, and make collaboration seamless. We create breakthrough solutions that make complex tasks feel effortless, teamwork more natural, and ideas more impactful—always with a human-centric mindset. By embedding AI advancements into every HP product and service, we’re expanding what’s possible for individuals, organisations, and the future of work. Join us as we reinvent work, so people everywhere can do their best work. About The Role We are seeking a Senior Privacy Engineer to lead the design and implementation of privacy controls across software, cloud, AI, and connected device platforms. The Privacy Engineer will work closely with Design, Product Security, Legal, Compliance, and Product Management teams to ensure personal data is collected, processed, stored, and shared in compliance with applicable privacy regulations, including GDPR, CCPA/CPRA, and other global privacy frameworks. Responsible for establishing and leading privacy engineering practices across the organization, driving privacy-by-design adoption, defining technical privacy strategy, and overseeing privacy risk management for products, services, cloud platforms, AI systems, and connected devices. The ideal candidate combines strong technical expertise with a deep understanding of privacy regulations and privacy engineering practices. What You Might Do Implement Privacy by Design and Privacy by Default principles throughout the software development lifecycle. Conduct privacy impact assessments (PIAs), data protection impact assessments (DPIAs), and

Who We Are HP IQ is HP’s new AI innovation lab. Combining startup agility with HP’s global scale, we’re building intelligent technologies that redefine how the world works, creates, and collaborates. We’re assembling a diverse, world-class team—engineers, designers, researchers, and product minds—focused on creating an intelligent ecosystem across HP’s portfolio. Together, we’re developing intuitive, adaptive solutions that spark creativity, boost productivity, and make collaboration seamless. We create breakthrough solutions that make complex tasks feel effortless, teamwork more natural, and ideas more impactful—always with a human-centric mindset. By embedding AI advancements into every HP product and service, we’re expanding what’s possible for individuals, organisations, and the future of work. Join us as we reinvent work, so people everywhere can do their best work. About The Role As an Offensive Security Engineer within HP IQ’s Product Security team, you will partner closely with engineering teams to identify, validate, and mitigate security risks across the product lifecycle. You’ll influence design decisions, embed security into development workflows, and continuously assess attack surfaces to guide and enhance secure development. What You Might Do Lead penetration tests and security assessments for product and feature releases. Conduct continuous security engagements, proactively identifying vulnerabilities and driving remediation to closure. Advise engineering and product teams on remediation strategy, validating fixes and tracking measurable improvements to security posture over time.​​​​​​​​​​​​​​​​ Assess attack surfaces across internet-facing services, APIs, and device interfaces (Wi-Fi, BLE, USB). Perform threat modeling and security architecture reviews that directly shape product decisions. Define and lead end-to-end risk reduction initiatives with internal and external stakeholders, aligning offensive findings to strategic security investments.​​​​

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today, SpaceX is actively developing the technologies to make this possible, with the ultimate goal of making life multiplanetary and expanding consciousness to the stars. SpaceXSI is building Super Intelligence to help humanity understand the universe. Our teams are building the full Super Intelligence stack: from our Colossus supercomputers, to Grok models, to our suite of applications, including Grok Bot, Grok Build, Grok Imagine, Grok Voice, and X. We're creating a powerful flywheel where more compute trains better models, better models power more useful products, and what we learn from people using those products shapes what we build next. ABOUT THE ROLE: As Architect for the Data Centers & Workplace, you will lead the strategic planning, design, and execution of facilities and infrastructure solutions for SpaceXSI's data centers and site builds. Drawing on expertise in complex, multi-stakeholder projects, you'll collaborate across engineering, procurement, construction, and business teams to deliver integrated, compliant designs that align with aggressive timelines and innovation goals. This position reports to the Facilities Leadership team and is an opportunity that requires travel to different locations and cross-site collaboration. RESPONSIBILITIES: Plan, design, and support the construction of advanced data centers and AI infrastructure, including high-performance computing facilities at new and existing sites. Collaborate with civil, structural, MEP, and fire protection disciplines, as well as procurement and construction teams, to develop integrated solutions optimized for scalability, efficiency, and reliability. Create Basis of Design documents and Request for Quotation (RFQ) packages for external consultants, architects, and vendors; respond to RFIs and iterate based on feedback. Conduct site visits

Company: tastytrade Role: Director, Business Operations — Operational Excellence Location: Chicago, IL — Hybrid About the Role The Business Operations team at IG North America works on many of the company's biggest opportunities and challenges. We help shape where the company is headed, identify new ways to grow, and make sure the entire organization is aligned. This role reports to the head of Business Operations and calls for someone who can think about the company's future while also getting critical work done day to day. The team moves between building multiyear plans and driving execution, depending on what the business needs most. This particular role is the team's depth expert on operational performance: how our operating teams run day to day, what it costs to serve our customers, and where better tooling, process, or data can unlock efficiency. You'll partner closely with the leaders of our operational teams, and their teams directly, as a hands-on partner, not just a strategist handing down recommendations. What You'll Do Operational tooling and efficiency Identify where manual, duplicative, or broken workflows are slowing down operational teams, and lead the build or rollout of new tools and systems to fix them. Partner with Engineering, Data, and operational leaders to scope, prioritize, and implement automation that reduces cost and improves speed or quality. Own the roadmap for operational tooling investments, including making the build versus buy case to leadership. Cost to serve and unit economics Define and maintain a cost to serve model across our operational functions, down to the channel, segment, or customer level. Identify where costs are out of line with value delivered, and build the business case for changes to staffing, process, or technology. Partner with Finance to connect operational metrics to P&L impact, and keep leadership honest about tradeoffs. Operational tracking and performance management Design the KPIs, das

Why join us Brex is the intelligent finance platform that enables companies to spend smarter and move faster in more than 200 markets. By combining global corporate cards and banking with intuitive spend management, bill pay, and travel software, Brex enables founders and finance teams to accelerate operations, gain real-time visibility, and control spend effortlessly. Brex’s AI-native automation and world-class service eliminate manual expense and accounting tasks for customers so they can focus on what matters most. Tens of thousands of the world's best companies run on Brex, including DoorDash, Coinbase, Robinhood, Zoom, Plaid, Reddit, and SeatGeek. Working at Brex allows you to push your limits, challenge the status quo, and collaborate with some of the brightest minds in the industry. We’re committed to building a diverse team and inclusive culture and believe your potential should only be limited by how big you can dream. We make this a reality by empowering you with the tools, resources, and support you need to grow your career. Engineering at Brex Engineering at Brex is about building systems that scale with speed and intention. Our teams span Software, Data, Security, and IT, and operate with high autonomy and deep collaboration. We tackle hard technical problems, own our outcomes, and push for excellence at every level — from architecture to deployment. It’s an environment where engineering is a craft, and builders become leaders. What you’ll do As a Salesforce Lead, you will be responsible for designing, testing, implementing, and supporting the Salesforce PaaS/Saas at Brex. You will work closely with functional leaders, organizational units, and subject matter experts to identify, develop and deploy new business processes including: Sales, Marketing, Customer Experience, Customer Account Management, IT and core business processes. We’re searching for someone with a record of success aligning business processes with Salesforce best practices, translating

The Team: At Datadog, People Operations is more than just human resources—it’s a data-driven team dedicated to constantly improving the way we hire, develop, and support our most valuable asset: our people. Our People team are strategic problem solvers who work closely with leadership and employees to ensure that Datadog keeps scaling smoothly and remains a great place to work. The Opportunity: As a Compensation Program Manager, you will combine compensation expertise, program management, analytics, systems thinking, and stakeholder management to help build and scale our compensation programs. You will own critical compensation processes from strategy and design through execution, communications, enablement, and continuous improvement. This role is ideal for someone who enjoys both strategic problem solving and hands-on program execution, can translate complex compensation concepts into simple experiences for managers and employees, and thrives in a highly cross-functional environment. At Datadog, we place value in our office culture - the relationships and collaboration it builds and the creativity it brings to the table. We operate as a hybrid workplace to ensure our Datadogs can create a work-life harmony that best fits them. What You’ll Do: Develop and execute scalable compensation programs and processes, including compensation and equity cycles, governance, timelines, and tools, in partnership with People, Finance, HRIS, Payroll, Legal, and business leaders Build dynamic compensation models and scenario analyses to support budgeting, workforce planning, and compensation design for cash/equity Provide operational analysis, reporting, and insights related to compensation programs, trends, market data, and internal equity Oversee compensation functionality and data in our systems and partner with HRIS and Analytics to continually enhance compensation and total rewards tooling Lead communications and change management for compensation programs a

About The Weather Company: The Weather Company is the world’s leading weather provider, helping people and businesses make more informed decisions and take action in the face of weather. Together with advanced technology and AI, The Weather Company’s high-volume weather data, insights, advertising, and media solutions across the open web help people, businesses, and brands around the world prepare for and harness the power of weather in a scalable, privacy-forward way. The world’s most accurate forecaster globally, the company reaches hundreds of enterprise clients and more than 360 million monthly active users via its digital properties from The Weather Channel (weather.com) and Weather Underground (wunderground.com). AI is part of how we work: Human judgment, expertise, and creativity remain essential and are amplified by AI. We expect everyone in this role to use AI thoughtfully and proactively to accelerate their performance, improve the quality of their work, and explore new possibilities. We are looking for people who are curious, adaptable, and excited to help shape an AI-enabled culture that delivers better outcomes for our customers and our company. Job brief: We are seeking a Senior Project Manager to lead and drive key initiatives for our Enterprise business using Agile methodologies and AI tool integration. This individual will play a critical role in ensuring the successful delivery of complex projects, driving collaboration across cross-functional teams, and aligning project goals with strategic business objectives. The impact you'll make: Leading and Facilitating Agile Projects: Planning, coordinating, and managing Agile projects from initiation to completion. Facilitating Agile ceremonies (e.g., sprint planning, daily stand-ups, retrospectives) and promoting continuous improvement. Ensuring team adherence to Agile principles and practices. Project Scope and Delivery: Managing project scope, timelines, budgets, and resources. E

Your wellbeing, our mission. Join a company shaping a healthier world. GET TO KNOW US At Wellhub we're revolutionizing workplace wellness. Our platform connects employees worldwide to the best partners for fitness, mindfulness, therapy, nutrition, and sleep—all in one simple subscription. Headquartered in NYC with team members in Europe, North America and South America, we’re on a mission to make every company a wellness company. We believe work should be fulfilling, inspiring, and balanced. Here, you’ll find a team that values wellbeing, collaboration, and different perspectives, where passion and creativity push boundaries to create real impact. Your contributions will help shape a healthier, more balanced world for you and millions of people globally. Join us in redefining the future of wellbeing! THE OPPORTUNITY We are hiring a Partner Sales Executive to our Partner Sales team in São Paulo ! The Partner Sales Executive plays a pivotal role in driving outbound activities to onboard potential partners for Wellhub, expanding Wellhub’s partner network. It is a senior, consultative sales profile with autonomy to lead projects and commercial routines. The primary objective is to close contracts strategically and increase conversion across the sales cycle, sustaining a weekly/monthly launch cadence aligned with the run-rate required by the target and operating model. The role requires a strong understanding of local markets, mastery of Salesforce and related tools, and the ability to manage workload efficiently. YOUR IMPACT Actively qualify leads and initiate communication with potential partners through outbound channels: primarily cold calling, complemented by emailing and social media outreach, focusing on increasing conversion. Lead high-complexity consultative negotiations across different partner segments handling objections from leads and stakeholders, using closing-oriented questioning, and structuring pricing and value propositi

This is Adyen Adyen provides payments, data, and financial products in a single solution for customers like Meta, Uber, H&M, and Microsoft - making us the financial technology platform of choice. At Adyen, everything we do is engineered for ambition. For our teams, we create an environment with opportunities for our people to succeed, backed by the culture and support to ensure they are enabled to truly own their careers. We are motivated individuals who tackle unique technical challenges at scale and solve them as a team. Together, we deliver innovative and ethical solutions that help businesses achieve their ambitions faster. The Role We’re looking for an experienced Senior GTM Recruiter to join our North America Talent Acquisition team in San Francisco. As a Senior Recruiter, you will serve as a strategic partner to business leaders — combining deep expertise in identifying complex enterprise talent with a track record of proactively sourcing hard-to-reach, passive candidates. Your primary focus will be owning commercial hiring across Account Management, Partnerships, and Marketing, but your versatility allows you to quickly master new markets and support non-GTM roles as priorities shift. We want a recruiter who builds high-performing teams, challenges assumptions with market data, and empowers leaders to make better hiring decisions. What You'll Do Own Full-Cycle Recruiting Across GTM: Lead hiring across key commercial functions with a focus on quality, urgency, and candidate experience. Proactive Sourcing: Build deep pipelines of passive commercial talent rather than relying primarily on inbound candidates. Market Intelligence: Map relevant talent markets and provide insight on competitor organizations, candidate availability, compensation, location, and market dynamics. Trusted Advisor: Act as a trusted partner to hiring managers—knowing when to challenge, when to influence, and when to align and move. Data-Driven Recruitment: Use funnel data and re