Head of Engineering

Role Overview Mainstay is seeking a Head of Engineering based on the West Coast, with strong preference for candidates in the San Francisco Bay Area. This leader will oversee engineering operations, set technical direction, and ensure teams deliver reliable, high-quality products. What You Will Do Guide engineering strategy and execution across the organization Oversee daily engineering operations and project delivery Foster a collaborative, high-performing team environment Support and mentor engineers to help them grow and succeed Location Requirement This role requires residence on the West Coast. Candidates in the San Francisco Bay Area are highly preferred.

We are seeking an innovative and visionary Head of Engineering to lead our engineering team at highlightai. In this pivotal role, you will drive the technical strategy and oversee the development of cutting-edge AI solutions that empower our clients. Your leadership will be crucial in fostering a culture of collaboration, creativity, and excellence within the engineering department.

Join Probably Genetic as Our Head of EngineeringAt Probably Genetic, we are on a mission to transform the lives of patients affected by severe and complex diseases. Our innovative data platform empowers drug developers and patient advocacy groups to create and deliver groundbreaking treatments. Utilizing advanced machine learning and at-home testing, our technology identifies undiagnosed patients online, assesses their disease states, and facilitates compliant communication with them. Our ultimate goal is to ensure patients have early access to diagnoses, clinical trials, and effective treatments.We pride ourselves on being a collaborative and driven team of problem solvers, dedicated to a cause that transcends individual interests. Our commitment to ethical practices allows us to develop cutting-edge healthcare solutions, with a roadmap brimming with innovations in bioinformatics, artificial intelligence, and drug development. We have assembled a lean and talented team to realize our vision, and we invite you to contribute to our journey.Having secured funding from some of Silicon Valley's most esteemed investors, including Threshold, Khosla, and Y Combinator, we offer competitive salaries, comprehensive benefits, and significant early-stage equity opportunities.The RoleWe are seeking a dynamic and visionary leader to step into the role of Head of Engineering. This is a unique opportunity for a seasoned engineering professional who remains passionate about coding—someone eager to get hands-on, develop critical systems, and establish the technical groundwork for extraordinary advancements in our field.In the short term, you will be deeply engaged in designing and writing production code, shaping our AI and software systems, and collaborating closely with the Product team to translate strategy into tangible features. As your role evolves, you will scale the engineering team and transition from a hands-on leader to an executive figure, steering the technical vision that drives the future of precision medicine through AI.Key ResponsibilitiesTechnical Leadership (Player-Coach Approach)Lead the design, development, and deployment of core components within our AI platform, software infrastructure, and genetics-focused architecture.Establish coding standards and architectural patterns through exemplary practice—setting a high benchmark for quality, clarity, and pace.Collaborate with the Head of Product, Head of Research and Development, and the broader executive team to refine the long-term technical vision and roadmap in alignment with company strategy.Guarantee the security, scalability, and reliability of our systems as we expand into global markets and navigate a regulated environment.

About PoesisPoesis is an innovative AI-driven investment management firm that is redefining the foundational model for investing in U.S. equities. Our mission is to construct modular AI systems that predict market fluctuations and outpace traditional managers. This role involves engaging in cutting-edge research with immediate applicability in the financial markets. Your contributions will significantly influence investment strategies and enhance portfolio outcomes.Location & WorkstyleLocated in the San Francisco Bay Area, close to Stanford University, we offer a Hybrid work environment requiring several days of on-site presence each week.Relocation assistance is available.About the RoleAs we develop a machine learning-driven hedge fund focused on transforming trading decision-making, we are seeking our Founding Head of Engineering. This pivotal role marks the first engineering hire, responsible for shaping our technical architecture, establishing the initial system, and operating as both an individual contributor and product owner. You will collaborate closely with our CEO and Chief Scientist to develop the technical foundation of our fund.Your responsibilities will include designing and delivering the initial demonstrable workflows, integrating with financial data providers, constructing reproducible pipelines, and creating a user-friendly interface suitable for decision-makers and investors. As the company evolves, you will also play a key role in recruiting engineers and data scientists.

Join doss as the Head of Engineering, where you will lead a talented team of engineers dedicated to building innovative solutions. In this pivotal role, you will oversee the engineering department's strategic direction and ensure the successful execution of engineering projects. You will collaborate with cross-functional teams to drive technology initiatives and enhance operational efficiency.

About OneSchemaAt OneSchema, we recognize that over 90% of enterprise data exists in unstructured formats, such as spreadsheets, PDFs, and documents. Our mission is to revolutionize the way businesses handle data with our cutting-edge AI document automation platform, aimed at eliminating the tedious manual data entry tasks that currently burden large enterprises. As a fast-growing startup, we are proudly backed by industry leaders including General Catalyst, Sequoia Capital, and Y Combinator. Our diverse clientele includes publicly traded giants like Toast and Dayforce, as well as innovative startups like Ramp and Vanta.We foster an ambitious and dynamic work culture at OneSchema. As a rapidly expanding, venture-backed startup, each team member has the opportunity to make a significant impact on our business. The ability to work autonomously is essential, enabling you to gain invaluable experience at an accelerated pace.This role offers a competitive equity compensation package, and we maintain a strong in-person engineering culture at our San Francisco headquarters, where you will work on-site five days a week.

About Dealops:Dealops is at the forefront of transforming the revenue infrastructure that will define B2B for the coming decade. As the complexity of B2B pricing skyrockets—spanning usage-based, outcome-based, hybrid, and bespoke terms—the existing systems struggle to keep pace.Our mission is to create a robust layer that enables modern pricing to be operational: ensuring policy adherence, enabling auditability, and providing AI-driven recommendations that can be relied upon in enterprise settings. If we succeed, Dealops will revolutionize revenue management just as Salesforce has transformed pipeline management.Currently, we are empowering revenue teams at innovative companies like Clay, LangChain, Plaid, and Airwallex, where navigating pricing complexity is critical. We are moving rapidly to establish something foundational.About this Role:This is a hands-on leadership position offering significant scope: drive product release, oversee implementations, scale the organization, and elevate technical standards. We seek a highly motivated builder eager to embark on a true 1→10 journey (achieving early product-market fit with a projected growth of 10x year-over-year) and passionate about creating a category-defining solution. You will influence product direction, architectural choices, and the foundational systems of the engineering organization, with a direct impact on company success.*In-office position, 5 days/week in SF - fostering high-velocity collaboration, rapid iterations, minimal meetings, and tight feedback loops among Engineering, Product, and GTM teams.

About Huzzle Huzzle connects talented professionals with leading startups and tech companies across the UK, US, Canada, Europe, and Australia. The firm partners with high-growth organizations in SaaS, FinTech, AI, and Web3, focusing on direct placements that allow engineers to join in-house teams and contribute meaningfully to product and company growth. About the Client This role is with an early-stage, venture-backed startup led by experienced founders. The company is building a platform designed to reshape how businesses operate in a digital-first world. With early traction and ambitious goals, the team is seeking a technical leader to shape its technology and culture from the ground up. Role Overview: Chief Technology Officer / Head of Engineering The CTO / Head of Engineering will define and execute the company’s technical direction, from early product development through to scaling. This founding leadership position combines hands-on engineering with high-level strategy, offering a rare chance to influence both the product and the future engineering organization. Collaboration with founders, investors, and future team members is central to the role. The CTO will drive technical innovation, help set company strategy, and play a key part in building a strong engineering culture. What You’ll Do Develop and communicate the company’s technical vision, architecture, and roadmap. Lead product development from MVP through to a robust, scalable platform. Decide on the tech stack, infrastructure, and system design. Recruit, mentor, and grow the engineering team. Set up engineering processes, best practices, and performance standards. Work closely with founders on business strategy, fundraising, and product-market fit. Oversee the scalability, security, and reliability of all systems. Represent engineering in executive discussions with stakeholders and investors. Technology Stack Languages: TypeScript, JavaScript; Python experience is a plus Frontend: React Backend: Node.js, Wasp (easy to learn) Infrastructure: Cloudflare Workers/R2, PostgreSQL, Docker AI & APIs: OpenAI, Anthropic, Google AI, Bedrock, Openrouter Development Tools: Cursor, Augment, Git, Linear What a Typical Day Looks Like Join focused standup meetings to align on goals. Prototype new features that connect UX, backend, and AI orchestration. Share product demos via Loom, collaborate with founders on Slack, and deploy updates quickly. Map out user flows, sketch mockups, or evaluate technical trade-offs as needed. Location San Francisco, California, United States

About LightfieldLightfield is revolutionizing the CRM landscape with our AI-native platform that seamlessly integrates your email, calendar, and meeting data. Our solution captures every interaction, transforming them into organized insights, tasks, accounts, and follow-ups, ensuring that nothing falls through the cracks.By rethinking CRM from the ground up, we aim to create a system that adapts to the natural workflow of teams rather than imposing rigid structures. Lightfield learns and evolves, automating processes and surfacing critical insights that fuel growth. We're on a mission to build the CRM platform we've always desired: efficient, intelligent, and genuinely supportive.Supported by leading investors such as Greylock, Lightspeed, and Coatue, our talented team previously developed Tome, a generative AI presentation tool that has captivated over 25 million users. Our backgrounds span across industry giants including Llama, Instagram, Facebook Messenger, Pinterest, Google, and Salesforce.About The RoleAs the Head of Talent at Lightfield, you will play a critical role in shaping our engineering and design teams from the ground up. Reporting directly to the CEO, you will be responsible for the entire recruitment process, focusing on attracting and hiring exceptional talent that will elevate our organization. Your primary objective will be to establish a robust talent strategy, develop a comprehensive recruitment playbook, and secure high-caliber individuals who can drive 10× outcomes in our early-stage startup environment.What You’ll OwnLead end-to-end recruitment efforts for engineering, design, and business roles—refining the pitch and successfully closing top-tier machine learning, infrastructure, and product engineers.Define the talent strategy and enhance the employer brand—articulating what excellence looks like at Lightfield, crafting engaging narratives, and establishing us as the premier destination for aspiring builders.Create a data-driven sourcing engine—developing repeatable recruitment pipelines through outbound strategies, referrals, events, and community engagement.Architect recruitment processes—implementing effective tools and processes across the ATS and communication channels to ensure a seamless candidate experience.Enhance candidate experience—facilitating a smooth and respectful process that turns skeptics into advocates, regardless of hiring outcomes.Collaborate with leadership—coaching hiring managers on calibration, interviewing techniques, and closing strategies; providing regular insights on recruitment funnel health and time-to-hire metrics.Who You AreYou bring 4+ years of full-cycle recruitment experience with a strong emphasis on scaling early-stage engineering teams.You possess a keen understanding of the technology landscape and are adept at identifying exceptional talent that can thrive in a dynamic startup environment.You are a strategic thinker and an exceptional communicator who can foster relationships and inspire candidates and hiring managers alike.

Tacit is an early-stage deep-tech startup in San Francisco, backed by General Catalyst, Khosla Ventures, and Greylock Partners. The team draws on backgrounds from Stanford, BrainGate, Oculus, and Tesla. The company is developing new hardware to advance human-computer interaction, with project details still confidential. The focus is on solving complex engineering challenges that could change how people use technology. Role overview The Head of Hardware will lead Tacit's transition from research prototypes to a consumer-ready product. This senior leader shapes the technical architecture and builds the team responsible for delivering reliable hardware at scale. The position works directly with company leadership, driving hardware strategy, resource planning, and execution. The main objective is to establish a high-performing hardware group that consistently ships quality consumer products. What you will do Lead the move from research prototypes to a production-ready consumer hardware platform. Own the hardware roadmap and system architecture, overseeing progress from early builds to mass production. Design the hardware organization, define team roles, and set hiring priorities in collaboration with leadership. Establish and uphold standards for product readiness, with attention to quality, reliability, manufacturability, and testing. Shape and execute the hardware hiring strategy, including role definitions, sequencing, and technical requirements. Build and lead a multidisciplinary hardware team spanning electrical, mechanical, RF, firmware, testing, and manufacturing. Encourage open technical discussion, clear ownership, and a product-driven approach within the team. Make key system-level trade-offs across performance, power, cost, reliability, and timelines, balancing immediate needs and long-term growth. Enhance design quality through DFM/DFA, manufacturing test planning, and strong quality processes. Collaborate closely with product, industrial design, and software/ML teams to translate product requirements into hardware specifications.

We are seeking a visionary Head of Engineering to lead our dynamic team at Gusto. As the Head of Engineering, you will play a critical role in shaping our technology strategy and driving innovative engineering solutions. This is an exciting opportunity to influence the direction of our engineering practices and to mentor and grow our talented engineering team.

About GigsAt Gigs, we are revolutionizing the operating system for mobile services by creating a platform that seamlessly integrates global connectivity for tech companies.Similar to how Stripe enables businesses to add payment buttons in seconds, Gigs empowers platforms to seamlessly incorporate connectivity, merging traditional telecom with cutting-edge technology. From fintechs launching mobile services to HR platforms offering work phone plans, we simplify provisioning and eliminate telecom complexities.Our dynamic team of approximately 100 professionals across the US and Europe is supported by nearly $100 million in funding from esteemed investors like Ribbit Capital, Google, and Y Combinator. As one of the fastest-growing tech companies, we unite early-stage engineers, product innovators, and business leaders from industry giants like Stripe, Airbnb, and Shopify. Together, we are addressing profound technical and regulatory challenges to deliver truly seamless connectivity.If you possess a curious spirit, creative mindset, and a desire to influence the future of telecom, we want to hear from you.The RoleAs the Head of Communications at Gigs, you will define our brand presence. Being the first in our category, we aim to cultivate a beloved brand. Collaborating with Gigs' leadership, marketing, HR, and product teams, you will develop and implement a communications strategy that enhances our reputation, attracts enterprise clients, and draws top talent.Gigs is at a pivotal moment with numerous stories to share. The ideal candidate will combine exceptional strategic storytelling capabilities with the ability to execute effectively, transforming our narratives into impactful headlines.This position is based in one of our US hubs (San Francisco or New York).

As the Head of Content at virio, you will spearhead our content strategy and development, overseeing the creation and execution of engaging content that resonates with our audience. You will lead a talented team of content creators, ensuring that all materials align with our brand's voice and objectives while driving engagement and growth.

We are seeking a passionate and visionary Head of Community to lead our community engagement efforts at Laurel. In this pivotal role, you will be responsible for fostering and nurturing relationships within our community, enhancing member engagement, and driving initiatives that resonate with our audience.Your strategic mindset will be crucial in developing innovative programs and events that further our mission while creating a welcoming environment where members feel valued and connected.

tl;dr: At Sphinx, we are revolutionizing compliance for banks and fintechs through the use of AI agents that function like human analysts. The narrative in this sector is underrepresented, presenting a unique opportunity for the right candidate. We are seeking a Head of Content to be the voice of Sphinx, crafting a comprehensive content strategy from the ground up across various formats and channels. If you have the ability to create engaging blog posts that resonate with banking executives, produce podcasts that capture attention, and approach outdoor advertising and newsletters with the same enthusiasm, we want to hear from you.BackgroundBefore funds can be transferred or accounts opened, compliance checks must be performed to ensure no illegal activities are involved. However, the current compliance process is flawed.Sphinx is at the forefront of this transformation, developing AI analysts capable of operating within browsers, APIs, and internal systems just like human counterparts, automating processes such as AML, KYC, KYB, and transaction monitoring from start to finish.Our technology empowers financial institutions to reduce manual labor by 90%, slash compliance costs by four times, and streamline onboarding processes. We have earned the trust of major players across the U.S., Canada, Europe, and Latin America.Our product is beloved by users. From inception, content creation has been driven by the founders, yielding successful results. Now, we need a talented individual to take our existing framework, expand it across all channels and formats, and develop a scalable content engine.Why Join Sphinx?Define Our Brand: You will have the freedom to build Sphinx’s voice, visual identity, and content strategy without any existing constraints or legacy guidelines.Compelling Narrative: We are transforming a $200 billion manual industry with effective AI solutions. Our clients experience a significant reduction in manual tasks. The story is there; we simply need a skilled storyteller.Diverse Content Formats: This role is not limited to writing blog posts. You will engage in various media including text, video, podcasts, newsletters, social media, physical campaigns, and any innovative formats you envision.Proven Success: We have never lost a deal to competitors; every RFP we've participated in has been won. Exceptional content will further enhance our already thriving business.Small Team, Large Impact: Our co-founders have previously sold an AI company, developing machine learning systems that scaled to millions of users and secured contracts with major banks. Our small, dynamic team in San Francisco is committed to making a difference.

As the Head of Startups at Attio, you will play a pivotal role in shaping our entrepreneurial initiatives and driving innovation. You will lead a dynamic team, fostering an environment of creativity and collaboration to help startups thrive. Your strategic vision and leadership will be key to enhancing our startup ecosystem, ensuring we provide valuable resources and support to emerging businesses.

Join firecrawl as the Head of Brand, where you will lead our branding strategy and initiatives to elevate our market presence. As a key member of our leadership team, you will craft and execute innovative branding campaigns that resonate with our audience and reflect our mission. You will work collaboratively with marketing, product, and design teams to develop a cohesive brand narrative that drives customer engagement and loyalty.

Join Parallel as the Head of Marketing, where you will lead our marketing strategy and execution to drive growth and brand awareness. You will collaborate with cross-functional teams, manage marketing initiatives, and develop innovative campaigns. Your leadership will shape the direction of the marketing department as we strive to enhance our market presence.

Role Overview usul is looking for a Head of People to guide the company’s culture and talent approach from our San Francisco office. This leader will oversee efforts to attract, grow, and keep talented employees, while building an inclusive and engaging workplace. The role connects human resources practices with broader business goals, helping usul stay strong in a competitive market.

Prime Intellect develops an open superintelligence framework, supporting advanced agentic models and the infrastructure needed to create, train, and deploy them. The company’s mission is to unify global computational resources under a single control plane, integrating a full reinforcement learning (RL) post-training stack. The platform includes secure sandboxes, verifiable evaluations, environments, and an asynchronous RL trainer. Researchers, startups, and enterprises use Prime Intellect to run end-to-end RL at scale, adapting models for practical deployment. Prime Intellect has raised $20 million in funding, including a recent $15 million round. Investors include Founders Fund, Menlo Ventures, and individuals such as Andrej Karpathy, Tri Dao, Dylan Patel, Clem Delangue, and Emad Mostaque. Role overview The Head of Compute leads all aspects of GPU resource management at Prime Intellect from the San Francisco office. This function covers sourcing, economics, contracting, and the strategic direction for compute resources, critical for model training, serving, and sales. Compute is both the company’s core product and the main constraint in the open AI ecosystem. The role exists to keep Prime Intellect and the broader open ecosystem competitive in a landscape where every major lab contends for the same GPUs. What you will do Direct sourcing and procurement of GPU resources for model training and serving Manage compute economics and contracts, balancing long-term commitments with spot market activity Shape Prime Intellect’s strategic position in the global compute market Identify and prioritize key geographic compute hubs and hardware generations for broad access Collaborate with research and engineering teams to design the compute layer for the open model ecosystem Build and maintain commercial relationships with neocloud providers and industry partners Secure early access to new accelerator hardware and develop the operational framework for sustained compute advantage Decide what to train, where, and under which cost structures What success looks like Modeling unit economics for multi-year GPU commitments as the market evolves Turning research needs into actionable compute strategies Negotiating significant contracts for reserved resources Working with neocloud leaders and internal teams to advance open post-training Location This position is based in San Francisco.