PHP Developer at Impact Foundation | San Francisco

Join the Impact Foundation, a forward-thinking non-profit organization committed to developing sustainable solutions for pressing social issues. Utilizing cutting-edge technology and innovation, we empower communities to foster significant change. Our core values include collaboration, creativity, and a dedication to making a lasting positive impact globally.As a PHP Developer, you will play a crucial role in developing, testing, and maintaining high-quality PHP-based web applications. You will collaborate with cross-functional teams to design and implement innovative features while ensuring code quality through best practices. Your expertise in troubleshooting and optimizing existing applications will help enhance performance and scalability. Additionally, you will integrate third-party APIs, participate in code reviews, and stay abreast of the latest PHP frameworks and technologies. Your contributions will be vital in planning and executing software development projects that make a difference.

Join Us as Our First Marketing LeadFoundation is on the lookout for our inaugural marketing leader to propel our vision of revolutionizing homebuilding and enhancing the journey of buying, selling, and owning a home.About FoundationWith approximately $6.8M in backing from top-tier venture capitalists, including Y Combinator, Foundation is composed of a dynamic team formerly from Opendoor, dedicated to reshaping the future of residential real estate.Our flagship product is a cutting-edge customer experience platform designed specifically for homebuilders—think of it as the "Shopify for Homebuilders." We collaborate with large-scale homebuilders to deliver a modern digital experience, significantly boosting customer satisfaction and team productivity. In just two years, we've achieved remarkable product-market fit and impressive growth, all without a dedicated marketing team.Our Growth JourneyWe are currently navigating the first of three interconnected growth phases:AI-Driven SaaS for Homebuilding: A transformative opportunity with public-scale potential.Real Estate Enterprise Ecosystem: Homebuilders drive this ecosystem, which fosters collaboration among adjacent trillion-dollar sectors such as lending, title, home insurance, and retail.AI Native Home Operating System: This will enable seamless home buying and ownership through our platform.Your Role as Our First MarketerWe seek a hands-on, results-driven marketer passionate about transforming a key sector of the U.S. economy and redefining marketing in the age of AI.Key ResponsibilitiesYou will be pivotal in steering Foundation's next growth phases by integrating AI with marketing and real estate innovation. Your primary objectives will include:Accelerating Growth: Drive rapid expansion of our core AI-driven product line for homebuilders.

Join Our Team as a Customer Success Manager/Lead!At Foundation, we're on a mission to revolutionize the homebuilding industry and enhance the experience of buying, selling, and owning homes. We are looking for a dedicated Customer Success Manager to join our dynamic team and drive our core business forward.About UsWith $6.8M in funding from top-tier venture capitalists, including Y Combinator, Foundation is comprised of a talented team formerly from Opendoor, focused on transforming residential real estate. Our flagship product is a cutting-edge customer experience platform tailored for homebuilders — envision it as the 'Shopify for Homebuilders'. We partner with large-scale homebuilders to provide a modern digital experience that significantly boosts customer satisfaction and team productivity. Within just two years, we have achieved remarkable growth and established a strong product-market fit.The RoleAs a Customer Success Manager, you will play a pivotal role in fostering and expanding relationships with our diverse portfolio of clients. You will be the primary contact for our customers post-onboarding, ensuring they maximize their use of our platform and derive long-term value. This position requires a proactive approach in managing multiple accounts, identifying risks and opportunities, and collaborating closely with our Product, Engineering, and Operations teams.This is an ideal opportunity for someone who thrives in a fast-paced environment, enjoys tackling challenges, and seeks a meaningful role within a scaling startup. You will have the autonomy to influence our customer engagement strategies and drive significant impact.

Join Our Team as a Lead DesignerFoundation is on the lookout for an innovative Lead Designer to advance our core mission: modernizing the homebuilding industry and enhancing the experience of buying, selling, and owning homes.About FoundationWith $6.8 million in support from prominent venture capitalists including Y Combinator, Foundation is revolutionizing residential real estate, coming from a team formerly at Opendoor.Our flagship product is a comprehensive customer experience platform for homebuilders, akin to “Shopify for Homebuilders.” We collaborate with large-scale homebuilders to provide a modern digital customer experience, significantly improving customer satisfaction and team productivity. In just two years, we have achieved evident product-market fit and rapid growth, all with contract design support.Growth PhasesWe are currently navigating the first of three key growth phases:Transformative, AI-driven vertical SaaS for homebuilding.The enterprise ecosystem for real estate that fosters collaboration and unlocks opportunities across related trillion-dollar industries.The AI-native home operating system that supports a seamless experience for homebuyers and homeowners.Role OverviewAs our first hands-on design leader, you will collaborate closely with our founders, customers, and engineering team. We are seeking a full-stack, impact-driven designer passionate about transforming a vital sector of the U.S. economy and redefining design for the AI era.Your contributions will be pivotal in propelling Foundation into its next growth stages, focusing on the convergence of design, AI, and real estate innovation.

About the Sandberg Goldberg Bernthal Family Foundation The Sandberg Goldberg Bernthal Family Foundation (SGBFF) is dedicated to fostering a more equitable and resilient world. We unite individuals to support one another through key initiatives: LeanIn.Org, LeanInGirls.Org, OptionB.Org, and the Dave Goldberg Scholarship Program. Through our community engagement, research-driven content, and diverse programs, we empower women and allies to cultivate the skills, confidence, and networks essential for achieving their fullest potential. We envision a world of equality, and we believe that collective efforts are key to realizing this vision. While your primary focus will be on Lean In, this role provides an exciting opportunity to impact various mission-oriented initiatives. Role Overview We seek a Data Scientist who excels at converting data into actionable insights. The ideal candidate will demonstrate analytical rigor, thoughtful interpretation, and a strong motivation to drive impact. In this role, you will enhance our understanding of community experiences, evaluate effective strategies, and inform strategic decisions that shape our products and programs. Your contributions will have a direct effect on how we serve millions of women and allies globally. Key Responsibilities Transform Data into Insights- Identify trends and patterns in data to discover opportunities for growth and improvement.- Translate complex findings into clear, actionable recommendations that guide decision-making.- Design and conduct analyses to assess user engagement, content effectiveness, and program impact. Enhance Product and Program Impact- Collaborate with product, marketing, and program teams to define meaningful metrics and gauge success.- Develop experimentation frameworks and analyze A/B tests to refine features and user experiences.- Create predictive models and recommendation systems to personalize and enhance user journeys. Establish Strong Foundations- Build dashboards and visualizations that convey insights clearly and effectively.

About the Foundations Retrieval Team The Foundations Research group at OpenAI explores new approaches that could shape artificial intelligence for years to come. The team focuses on improving the science and data behind model training and scaling, especially for future advanced models. Areas of focus include data utilization, scaling laws, optimization strategies, model architectures, and efficiency improvements. Within Foundations, the Search team builds agentic search solutions. This group works closely with others to design interfaces between models and the core search stack, serving, indexing, and retrieval, so model intent leads to reliable, real-world results. The team develops large-scale systems to transform and index massive information sources, enabling models to reason over global knowledge. Close collaboration with researchers helps move new modeling ideas into production quickly, changing how intelligent systems discover and synthesize information at scale. Role Overview OpenAI is hiring a Software Engineer with expertise in retrieval system development and scalability for its San Francisco office. This role involves working with researchers and engineers to build infrastructure that lets models access the right information when needed. Responsibilities include designing and operating indexing systems, retrieval pipelines, and serving layers. Work in this role will directly improve retrieval capabilities across OpenAI’s research and products, with a strong influence on system performance, reliability, and scalability. What You’ll Do Develop and scale retrieval infrastructure, including indexing, serving, and query execution. Build low-latency, high-throughput systems for real-time model interactions. Work with research teams to bring embedding and retrieval methods into production. Support dense, sparse, and hybrid retrieval pipelines. Maintain system performance, reliability, and observability at scale. Collaborate with Pretraining, Inference, and Product teams to deliver end-to-end retrieval solutions. Help develop model-system interfaces for agentic workflows. Who We’re Looking For Experience building and scaling distributed systems. Background in developing high-performance, low-latency systems. Hands-on work with indexing and retrieval techniques. Familiarity with hybrid retrieval systems. Comfort working collaboratively across multiple teams.

About RoxAt Rox, we are pioneering the development of an AI-native revenue operating system that transforms how enterprises interact with technology. Unlike traditional software designed for human dashboard operators, Rox is engineered for agents managing complex systems.We eliminate static workflows, enabling continuous decision-making processes powered by real-time insights from across the enterprise landscape. Our agents are equipped to analyze signals, reason through them, and autonomously execute actions.To support this innovation, we are constructing a robust infrastructure that integrates:Distributed data platformsReal-time decision-making systemsAgent execution frameworksLow-latency context retrievalBacked by prominent investors like Sequoia, GV, and General Catalyst, we are assembling a talented team of engineers eager to tackle deep technical challenges that have a tangible impact on the world.About the Foundations TeamThe Foundations team is responsible for developing the core infrastructure that powers Rox agents.Our work focuses on:Real-time context ingestionAgent execution and orchestrationEnsuring reliability for long-term AI tasksLow-latency decision-making across distributed systemsIf you have experience with:Streaming compute platformsDistributed query enginesReal-time OLAP systemsMatching enginesLarge-scale data infrastructureMany challenges you encounter here will resonate with your past work but will be applied to a novel category of software. At Rox, agents continuously:Retrieve contextMake decisionsTrigger actionsUpdate stateThe Foundations team builds the infrastructure that ensures these feedback loops are reliable, swift, and observable.The RoleWe are on the lookout for a Foundations Engineer (Deep Infrastructure) to design and oversee the systems that power Rox's agent runtime.

Join Our MissionFoundation is on the lookout for exceptional engineers to propel our mission of modernizing the homebuilding industry and enhancing the journey of purchasing, selling, and owning homes.About UsWith an impressive backing of $6.8 million from top venture capitalists, including Y Combinator, Foundation is formed by a team of former Opendoor professionals dedicated to revolutionizing residential real estate.Our flagship product serves as a pioneering customer experience platform tailored for homebuilders, akin to “Shopify for Homebuilders.” We collaborate with large-scale homebuilders to provide a cutting-edge digital customer experience, significantly boosting customer satisfaction and team productivity. In just two years, we’ve achieved notable product-market fit and rapid growth, supported solely by contract design.Our Growth PhasesWe are currently navigating the first of three interconnected growth phases:Innovative, AI-driven vertical SaaS for homebuilding - a public-scale potential in its own right.The enterprise ecosystem for real estate - enabling collaboration among adjacent trillion-dollar industries including lending, title, home insurance, and home services.The AI-native home operating system and interface - leveraging the network effects of the enterprise ecosystem to deliver transformative AI experiences for homebuyers and homeowners. Discover, purchase, and manage your home seamlessly with Foundation.Your RoleIn this pivotal role, you will contribute to creating the most reliable and modern customer experience platform within the homebuilding sector, transitioning traditional workflows into the AI era with insight, pragmatism, and empathy.You will work closely with product and customer teams, engaging in comprehensive stack development, collaborating with design and go-to-market teams, and owning significant portions of the platform from initial discovery to production refinement. Our focus is on real businesses, real revenue, and real users who require robust and reliable tools.

Join Figma as a Developer Advocate, where you will play a pivotal role in bridging the gap between our innovative design platform and the vibrant developer community. As a passionate advocate, you will empower developers to maximize their productivity using Figma, sharing insights, creating engaging content, and fostering a collaborative environment.Your responsibilities will include organizing workshops, writing technical documentation, and engaging with users through various channels to elevate their experience with our tools. You will also work closely with product teams to relay community feedback, ensuring that our offerings meet the needs of developers.

Join our innovative team as an Android Developer in the vibrant city of San Francisco! As a key player in our software development team, you'll be responsible for designing, developing, and maintaining high-quality Android applications. Your expertise will help shape the mobile experience for our users, ensuring seamless functionality and delightful user interactions.In this role, you will collaborate with cross-functional teams to define, design, and ship new features. You will also be involved in troubleshooting and debugging to optimize performance. If you are passionate about mobile technology and eager to contribute to exciting projects, we want to hear from you!

Join Front, the premier AI-driven customer service platform designed for seamless collaboration. Our innovative workspace integrates essential support channels, allowing teams to work together on requests, automate tedious tasks, and provide exceptional customer experiences throughout every interaction. With advanced workflows, AI capabilities, and customer insights, we empower organizations to prioritize their customers daily. Trusted by over 9,000 forward-thinking companies, including CultureAmp, HootSuite, and Y Combinator, Front is dedicated to delivering outstanding service at scale.Supported by renowned investors like Sequoia Capital and Salesforce Ventures, Front has successfully raised $204M from top-tier venture capitalists and industry leaders from companies such as Atlassian, Okta, Qualtrics, Zoom, and PagerDuty. We take pride in being recognized as one of the best workplaces, earning accolades such as Built In's 100 Best Midsize Places to Work in SF 2025, Top Places to Work by USA Today 2025, Y Combinator's list of Top Companies in 2023, and #4 on Fortune’s Best Workplaces in the Bay Area™.We are actively seeking talented engineers to join our Foundations team. This dedicated group is responsible for constructing the frameworks and systems that support our customer-facing functionalities. By developing shared libraries, frameworks, and tooling, they ensure that the infrastructure upon which we build Front is both scalable and dependable.

Join our dynamic team at StemXpert1 as an iOS Developer where you will play a crucial role in creating innovative applications for Apple's iOS platform. If you are passionate about mobile technology and eager to enhance user experiences, we want to hear from you!

Join Greptile as a Developer Advocate, where we are pioneering the development of AI agents that autonomously validate code changes. Our current focus is on creating AI that reviews pull requests in GitHub, catching bugs and enforcing coding standards. With nearly 1 billion lines of code reviewed monthly across over 3,000 companies, your contributions will help shape the future of AI in the developer ecosystem.In this role, you will serve as a public advocate for our users and the AI developer community, ensuring clarity and success in product adoption.Key Challenges We Aim to AddressAmidst the noise in AI coding discussions, can we establish trusted signals that developers can rely on?Code quality is subjective yet crucial. How can we exemplify readable and maintainable code effectively?Most developer relations content lacks a strong voice. Can we merge marketing and documentation with a genuine perspective?Product launches often fail due to unclear narratives. How can we make every release straightforward and beneficial for users?Company Growth TrajectoryOver 7,000 customers served.Secured $30 million from investors including Benchmark, Y Combinator, Paul Graham, and Initialized Capital.Our TeamWe have assembled a highly skilled team that has successfully scaled operations in companies such as Stripe, Google, and Figma.ResponsibilitiesActively participate in AI coding discussions. Monitor trends, publish insights, and lead key projects like the State of AI Coding Report.Promote Greptile’s narrative and features by transforming our offerings into clear messaging, demonstrations, and trustworthy examples.Manage product launches and customer communications. Draft announcements, walkthroughs, and release notes to ensure successful feature adoption.Maintain accurate and helpful documentation. Enhance onboarding processes, quick starts, examples, structure, and clarity for seamless user experiences.Foster adoption within open-source communities and high-impact teams. Identify valuable repositories and contributors, assist with Greptile integration, answer queries, and gather feedback.

Join our dynamic team at sonsoftinc as a Java Developer! In this role, you will leverage your programming skills to develop robust applications and contribute to innovative projects. If you're passionate about coding and eager to work in a fast-paced environment, we want to hear from you!

Join our dynamic team as a Java / J2EE Developer at Sonsoft Inc. in the heart of San Francisco! We are seeking an innovative and skilled developer to design, develop, and maintain robust applications using Java and J2EE technologies. You will collaborate with cross-functional teams to deliver high-quality software solutions that meet our clients' needs.

Join our dynamic team at Sonsoft Inc. as a Java Developer, where you will play a crucial role in designing and developing innovative software solutions. You will collaborate with cross-functional teams to enhance application functionality and performance, while ensuring code quality and scalability. If you are passionate about technology and eager to contribute to impactful projects, we want to hear from you!

Join the dynamic team at [solidcore], where coaches guide clients through our unique 50-minute, full-body, low-impact classes. As a coach, you will play a crucial role in educating clients about our resistance-based machines, motivating them to conquer our challenging workouts, and providing personalized support within a small group setting. With low lights, energizing music, and an inspiring community, [solidcore] coaches are passionate about helping individuals unlock their full potential.All coaches at [solidcore] will participate in our thorough training program, which is designed with small, selective groups to ensure personalized guidance and support. Training managers are committed to your success, offering feedback and trackable objectives. Note that prior fitness teaching experience or certification is not required.As our company continues to grow rapidly, dedicated team members who share a passion for the brand will find unique opportunities for advancement within [solidcore].

At casa, we are passionate about creating innovative solutions that improve the lives of individuals and communities. We are currently seeking candidates for various general interest opportunities in our San Francisco office. If you're looking to be part of a dynamic team that values creativity, collaboration, and community impact, we want to hear from you!

We are seeking a skilled PHP Consultant to join our dynamic team in San Francisco. As a PHP Consultant, you will be responsible for developing and maintaining web applications, ensuring high performance, and optimizing user experience. You will collaborate with cross-functional teams to deliver innovative solutions that meet client requirements.This role provides an excellent opportunity to work on exciting projects and enhance your technical expertise in a supportive environment.

About Our TeamThe Applied Foundations team at OpenAI is at the forefront of safeguarding our innovative technology against diverse adversarial threats. Our primary mission is to ensure the integrity and security of our platforms as they grow.We are dedicated to defending against financial misuse, large-scale attacks, and other forms of exploitation that could compromise user experience or destabilize our operations. The Integrity Foundations team lays the groundwork and infrastructure to support this critical mission.About the RoleAt OpenAI, we aim to advance artificial intelligence in a manner that is safe, reliable, and aligned with broader societal values. The role of Software Engineer in Applied Foundations is vital for maintaining the dependability of our platforms. You will play a key role in developing strong defenses against a variety of adversarial behaviors that threaten our ecosystem.In this position, you will collaborate with our entire engineering team to design and implement systems that detect and prevent abuse, promote user safety, and mitigate risks across our platform. You will be at the forefront of our initiatives to responsibly and sustainably harness the vast potential of AI.Key Responsibilities:Design and enhance systems to identify and prevent various forms of abuse, including financial fraud, botting, and scripting.Work collaboratively with cross-functional teams to create solutions that defend against adversarial attacks while preserving an optimal user experience.Assist in responding to active incidents on the platform and develop new tools and infrastructure to address fundamental challenges.You will excel in this role if you:Possess a minimum of 3 years of professional experience in software engineering.Have experience in setting up and maintaining production backend services and data pipelines.Exhibit a humble attitude, a willingness to support colleagues, and a commitment to team success.Demonstrate self-direction and enjoy innovating solutions to complex problems.Take ownership of issues from start to finish and are eager to acquire any necessary knowledge to achieve your goals.Have a passion for AI safety in production environments and the skills to build effective software systems.