Founding Engineer at AgentMail | San Francisco

Location: San Francisco, CAType: Full-time, on-siteOverview: As the digital landscape evolves, we at AgentMail are at the forefront of a revolution that empowers AI agents with their own identities and communication tools. Our mission is to create solutions in an uncharted territory, where the challenge is to build something that truly resonates with agents …

Join our innovative team at AfterQuery as a pivotal Fullstack Software Engineer, playing a crucial role in developing data infrastructure that will influence the next generation of frontier models. As one of our first hires, you will take on significant responsibilities, managing projects from inception to completion, allowing you to witness the immediate impact of your work.About AfterQueryAfterQuery is a cutting-edge research lab dedicated to exploring the frontiers of artificial intelligence through innovative datasets and experimental approaches. We serve top-tier foundation model labs and leading AI research facilities.Located in San Francisco, CA, we have secured funding from prestigious investors, including Y Combinator and BoxGroup, along with notable figures from Google DeepMind and Meta GenAI, among others.Our founding team comprises experts from renowned organizations such as Jane Street, Meta, Citadel Securities, Google, Goldman Sachs, and Stanford's AI laboratories.Why You Should ApplyExceptional Growth Potential: As one of the fastest-growing companies from Y Combinator, we aim to redefine industry standards.Founding Position: You will have the opportunity to shape our data infrastructure from the ground up.Equity and Advancement: Competitive salary and equity options, with opportunities to lead and develop an engineering team as we expand.Collaborative Environment: Work alongside a talented founding team with expertise from top firms.Your ResponsibilitiesDesign and scale intricate data capturing workflows across web technologies (Next.js) and desktop applications (Python).Develop and optimize robust data pipelines capable of handling high throughput and significant data loads.Collaborate with the founding team to outline product strategy and deliver features rapidly.Establish engineering best practices and set the foundation for future team expansion.QualificationsStrong proficiency in JavaScript (Next.js) and Python, with proven experience in developing full-stack web applications.Familiarity with serverless architecture and cloud functions for extensive data processing (GCP/AWS).Hands-on experience with storage solutions, caching (Redis), and search capabilities (Elasticsearch).

About tvScientifictvScientific stands as the pioneering CTV advertising platform meticulously designed for performance marketers. By harnessing extensive datasets and advanced scientific methodologies, we automate and refine TV advertising to achieve measurable business results. Our comprehensive solution integrates media buying, optimization, measurement, and attribution into a streamlined platform. Developed by industry veterans with a robust background in programmatic advertising, digital media, and ad verification, our platform offers a reliable CTV performance solution that empowers advertisers to elevate their business.As a Senior Machine Learning Engineer at tvScientific, you will be instrumental in building the machine learning and AI systems that underpin our Connected TV ad-buying platform, focusing on real-time bidding, campaign optimization, and incremental measurement at scale. As an adtech innovator, we are tackling the complex challenge of making CTV advertising quantifiable. Our platform enables advertisers to purchase ads across a diverse CTV ecosystem—including Hulu, Pluto TV, Disney+, HBO Max, and numerous FAST channels—while demonstrating that these ads generate tangible business results.

Join our innovative team at Andromeda as the Head of Partnerships, where you'll be at the forefront of building strategic alliances that drive growth and enhance our market presence. In this pivotal role, you will lead efforts to identify, negotiate, and manage partnerships that align with our mission and objectives.Your expertise in relationship management and strategic thinking will be crucial in establishing sustainable collaborations that benefit both our partners and our company. If you're passionate about fostering connections and driving impactful initiatives, we invite you to apply.

Join our innovative team at Peregrine Technologies as a Web Engineer. In this role, you will be responsible for designing, developing, and maintaining high-performance web applications that enhance the user experience and drive business success. You will collaborate with cross-functional teams to implement new features, optimize existing functionalities, and ensure the scalability and security of our web platforms.

Join Our Innovative TeamThe ChatGPT Ecosystem team plays a pivotal role in our mission to transform ChatGPT into a comprehensive super-assistant. Our ambition is to develop a platform that empowers both developers and end-users to enhance ChatGPT's capabilities, making it significantly more effective for a variety of real-world applications.We are constructing the groundwork for a vibrant ecosystem of applications, integrations, and tools that will expand the functionalities of ChatGPT. This team operates at the intersection of product engineering, platform design, and developer experience, collaborating closely with product management, research, security, and trust & safety teams to enable a global community of developers to innovate on top of ChatGPT.Your Role as a Full Stack EngineerIn the role of Full Stack Engineer on the ChatGPT Ecosystem team, you will contribute to the design and development of the platform that underpins ChatGPT Apps and developer integrations.Your responsibilities will span the entire stack—from user-friendly developer interfaces to robust backend systems—shipping features that simplify the process for developers to create, deploy, and scale applications within ChatGPT. You will collaborate closely with product managers, researchers, and other cross-functional partners to translate evolving model capabilities into effective, developer-friendly tools.We seek engineers who are passionate about building platforms, prioritize developer experience, and are eager to shape the foundational elements of a new application ecosystem.This position is based in San Francisco or New York City, operating under a hybrid work model with three days in the office weekly. Relocation assistance is available for new hires.Key ResponsibilitiesDevelop comprehensive platform features that support the ChatGPT Apps SDK and the broader developer ecosystem.Design and implement APIs, services, and interfaces enabling developers to create and integrate applications within ChatGPT.Enhance developer workflows, tooling, and documentation to ensure building on ChatGPT is intuitive and scalable.Collaborate with Product, Security, Trust & Safety, and Research teams to deliver high-quality, safe, and reliable platform capabilities.Iterate rapidly based on feedback from developers to continually enhance the platform and ecosystem experience.Contribute to defining the technical direction and architecture of the ChatGPT Ecosystem as it scales.Qualifications for SuccessA passion for building high-quality product and platform experiences.Strong experience in full-stack development with a focus on both frontend and backend technologies.Ability to collaborate effectively with cross-functional teams.A proactive approach to seeking feedback and iterating on product features.Commitment to enhancing developer experience and building intuitive tools.

Join our team as a Senior Software Engineer focused on our Data Platform at Gusto. In this role, you will leverage your expertise in designing and building scalable data systems that drive business decisions and enhance our platform's capabilities. Your contributions will directly impact our ability to deliver exceptional services to our customers.You will collaborate with cross-functional teams, ensuring that our data architecture is robust, efficient, and aligned with our business goals. If you are passionate about data engineering and are looking for a place to innovate and grow, we want to hear from you!

About Graphite Graphite builds tools for modern software engineering teams, helping them deliver quality products more efficiently. Our focus is on code review solutions designed for agile teams. We make it easier for engineers to create and review small pull requests, keep work moving, and ship code faster. Teams can adopt Graphite without disrupting existing workflows. Our platform synchronizes code changes and reviews seamlessly, inspired by internal tools like Phabricator at Facebook and Critique at Google. The goal: enable dynamic engineering teams to ship incremental changes and achieve strong results. Our Culture Collaboration sits at the heart of how we build products and shape our workplace. We believe that great software comes from teams who value craftsmanship, scientific thinking, and shared ambition. Ownership matters here, both through equity and the scope of responsibility each team member holds. We’re a close-knit group who enjoy espresso, music, and yoga outside the office, and we welcome new perspectives to our mix. Role Overview: Senior Software Engineer Location: San Francisco Graphite is growing quickly, and we’re looking for a Senior Software Engineer to join our early team. This role will help shape our product and technical direction as we continue to expand. The work centers on transforming how engineering teams write and review code, in a setting where collaboration and ambition drive results. What You Will Do Analyze large datasets (hundreds of GBs) to surface actionable insights for the team and product. Design, develop, and implement data models, algorithms, and tools for analysis and visualization. Build and maintain scalable data pipelines that collect, process, and store information from multiple sources. Our current stack includes DBT, Segment, and Redshift. Work closely with engineers and product managers to inform product strategy and growth. Who We’re Looking For We value talented, ambitious, and dedicated people from diverse backgrounds who thrive in collaborative environments. If shaping the next generation of software development tools excites you, this is a chance to make an impact early in our journey.

Cortica is hiring Behavior Technicians in San Francisco, CA. This team supports children with neurodevelopmental differences through individualized, play-based ABA interventions. Role Overview Behavior Technicians at Cortica help shape care plans and deliver support that meets each child’s needs. The work centers on fostering growth and development in a supportive setting. What Sets Cortica Apart Paid training provided Focus on career growth and purpose-driven work Collaborative team dedicated to making a difference

Role overview OpenAI seeks a Graphics Software Engineer to influence the graphics features of its consumer devices. The position focuses on developing and refining graphics algorithms that enhance the experience for users of new hardware products. What you will do Create and implement graphics algorithms tailored for consumer hardware. Collaborate with engineering teams to add graphics features that improve product usability and engagement. Use expertise in software development and graphics programming to address complex technical problems. Location This role is based in San Francisco.

AllTrails brings together millions of outdoor enthusiasts, offering an extensive library of trails and resources to support outdoor adventures. The platform aims to make nature accessible to everyone and encourages responsible enjoyment of the outdoors. Role overview The Android Engineer position at AllTrails is fully remote within the United States. While applicants from across the country are welcome, there is a preference for those based near San Francisco CA, Portland OR, Seattle WA, Denver CO, or New York NY. Living near these cities can make it easier to participate in Trail Days, collaborative meetings, and community events, though remote work remains the standard. Employees located in San Francisco are invited to visit the office once a week for in-person collaboration. This role combines the flexibility of remote work with opportunities to connect with colleagues and the broader AllTrails community.

Role overview The Staff Software Engineer position at Amplitude, Inc. is based in San Francisco, CA. This role centers on developing and enhancing software to broaden the platform’s features. Day-to-day work includes direct software development and frequent collaboration with colleagues from various teams. What you will do Design, build, and maintain scalable software applications that support the platform’s growth. Collaborate with product managers and designers to deliver features that address user needs. Mentor junior engineers and contribute to their technical and professional development. Review code and help improve engineering practices throughout the team. Stay current with emerging technologies and industry trends to guide technical choices.

tvScientific seeks a Senior Backend Engineer to support the backend infrastructure behind its advertising products. The position centers on designing and building applications that handle scale, efficiency, and security needs. Key responsibilities Develop and enhance backend systems that power advertising offerings. Collaborate with engineering, product, and design teams to deliver new features and improvements. Maintain high standards for application performance, reliability, and security. Location San Francisco, CA, US Remote, US

tvScientific seeks a Senior Software Engineer to strengthen its digital advertising platform. This position centers on developing new features and enhancing current systems, all in support of the company's mission. Role overview This role involves designing, building, and improving software components that drive the platform's capabilities. The work includes both creating new functionality and refining established systems to ensure reliability and performance. Location This position is based in San Francisco, CA, with the option to work remotely from anywhere in the United States.

MidiHealth is seeking a Senior Software Engineer to join the Platform Engineering team. This hybrid role is based in the SF Bay Area and centers on building and enhancing the software that drives MidiHealth’s healthcare technology platform. The work contributes directly to improving patient outcomes through technology. Key responsibilities Design and develop software solutions for the core platform Collaborate with engineering, product, and cross-functional teams to deliver integrated features Support the reliability and scalability of the platform Location This position requires regular on-site work in the SF Bay Area as part of a hybrid schedule.

airapps seeks a Software Architect to join the team in San Francisco. This position plays a central role in shaping product architecture and setting technology direction. The architect works to ensure that software solutions are designed for scalability and meet the needs of clients. Key responsibilities Lead the architectural design and set technical direction for both new and existing software products Collaborate with engineering teams to develop solutions that perform reliably and scale effectively Define and refine technology strategy across multiple projects Work closely with stakeholders to align technical decisions with client requirements Location This role is based in San Francisco.

Laurel develops AI-powered time platforms designed for professional services firms. By automating the capture of work time and connecting time data to business outcomes, Laurel helps firms improve profitability, client service, and strategic decision-making. Clients include organizations such as EY, Aprio, Crowell & Moring, and Frost Brown Todd. Laurel’s systems process over 1 billion previously untracked work activities each year. The team includes experts in AI, product, and engineering, all working to rethink productivity in the knowledge economy. Laurel’s mission centers on helping employees accomplish more in less time, creating space for creativity and impact. Role overview The Lead Counsel for AI & Privacy is Laurel’s first legal hire, based in San Francisco, Los Angeles, or New York. This position focuses on product, data, and AI strategy, setting the foundation for legal guidance as the company grows. Key focus areas Provide direction on how Laurel builds, deploys, and scales AI responsibly for enterprise clients. Collaborate with Product, Engineering, Security, and Sales to influence data use, AI system design, and customer trust. Tackle legal and ethical questions where AI, privacy, and data intersect. Establish foundational practices and policies for Laurel’s technology and business operations. Collaboration This role works closely with cross-functional teams, including Product, Legal, and Go-To-Market, to influence both strategy and day-to-day execution. Location San Francisco, Los Angeles, or New York.

SquareTrade is looking for a Senior Software Engineer to help shape software solutions that improve the customer experience. This position is based in San Francisco and works closely with other engineers, designers, and product teams. Role overview This role centers on designing, building, and maintaining software products. Senior Software Engineers at SquareTrade contribute to the full development cycle, from initial concept through deployment and ongoing support. Collaboration with cross-functional groups is a regular part of the job. What you will do Design and develop software solutions aimed at enhancing customer interactions Maintain and improve existing systems Work with team members from engineering, product, and other departments to deliver reliable products Apply modern programming languages and established engineering practices Requirements Experience in software engineering, including design and development Comfort working with modern programming languages Ability to collaborate with teams across different functions Motivation to create technology that benefits customers

About Gusto Gusto supports over 400,000 small businesses nationwide by handling payroll, health insurance, 401(k) plans, and HR services. This work helps business owners focus on what matters most to them and their customers. With offices in Denver, San Francisco, and New York, Gusto aims to build a workplace that reflects the diversity of the communities it serves. Full-time employees receive competitive salaries, a comprehensive benefits package, and equity in the form of RSUs. Compensation varies by role, level, and location. Details about Gusto’s approach to rewards can be found on their Total Rewards philosophy page. AI plays a key role in daily operations at Gusto. Team members are expected to use AI tools relevant to their work and continue building their skills as technology evolves. The level of AI experience required depends on the position and will be assessed during the interview process. Role Overview: Staff Software Engineer – Payments & Risk Gusto is hiring experienced full-stack engineers for teams working on payments and risk platforms. These systems serve small business owners every day. Staff Software Engineers in this group work across the full lifecycle of payments or risk systems: shaping architecture early in design, building internal features and APIs, and maintaining performance after launch. The work includes engineering the core business engine, providing reliable backend services for product teams, and setting a high standard for engineering practices. Team Focus Areas Payments: The Payments team manages all financial transaction operations for Gusto’s products. This includes ensuring secure fund transfers among partners, employers, employees, and government agencies. Engineers on this team build new payment features for both U.S. and international markets and help redesign the payments platform to support future growth. Risk: The Risk team develops systems that protect Gusto and its clients from financial risks. This work shapes experiences that keep customers and the company safe. Location This role is based in San Francisco, CA (hybrid) or New York, NY (hybrid).

Role Overview OpenAI Edu is hiring a Full Stack Software Engineer in San Francisco. This role centers on building educational tools and platforms, contributing to both the front end and back end of new products. What You Will Do Design and develop features across the stack, from user interfaces to server-side logic. Collaborate closely with engineers to deliver reliable, high-quality software. Apply knowledge of multiple programming languages and frameworks to support project needs. Troubleshoot and resolve technical issues to improve system performance and functionality. Location This position is based in San Francisco.