Staff Software Engineer at rillet | San Francisco

At Runlayer, we are pioneering the connection between AI and enterprise systems through our innovative MCP framework. Developed in collaboration with industry leaders like Anthropic, OpenAI, Google, and Microsoft, our platform is setting the standard for secure AI integration.Our dedicated team has successfully created AI Actions for OpenAI, delivered Zapier…

At Runlayer, we're at the forefront of AI innovation, transforming how enterprises operate. While many organizations are eager to harness the power of AI tools and workflows, they often struggle to implement them securely. Our mission is to bridge that gap.Our accomplished team has developed AI Actions for OpenAI, launched Zapier Agents to millions, and introduced the first remote MCP server with Anthropic. With the co-creator of MCP as part of our cap table, we established the protocol and are now building the essential platform that enterprises need to leverage it effectively.Runlayer is a comprehensive platform for MCPs, Skills, and Agents. We provide purpose-built security, fine-tuned governance, and complete observability, empowering organizations to advance AI initiatives across all departments with minimized risk. Backed by $11M from Khosla Ventures and Felicis, our clients include notable names such as Gusto, Instacart, and Opendoor.As a burgeoning team of 20, primarily composed of engineers, we are delivering rapid results. If you're eager to be at the epicenter of AI execution, this is your opportunity.In the role of Forward Deployed Engineer, you will take charge of the technical aspects of customer go-to-market strategies, managing Proofs of Concept (POCs), resolving integration challenges, and collaborating closely with clients to ensure successful deployment on Runlayer.

Join Runlayer as a Senior Product Engineer, where you will play a pivotal role in shaping the future of AI integration with enterprise systems. Our mission is to empower organizations to leverage AI securely and efficiently through our innovative control plane for MCP (Managed Communication Protocol).At Runlayer, we are the architects of AI Actions for OpenAI and have successfully delivered Zapier Agents to millions. Recently, we launched the first remote MCP server with Anthropic, and we are now focused on building the necessary infrastructure for enterprises to adopt MCP safely.As part of our dynamic team of engineers, you will directly engage with customers to translate their challenges into actionable product enhancements. Your contributions will directly influence our product roadmap, ensuring we meet our clients' evolving needs.

Join runlayer as a Member of the Technical Staff specializing in Security, where you will play a pivotal role in safeguarding our systems and data. You will collaborate with a talented team of engineers to design and implement security protocols, ensuring the integrity and confidentiality of our information. This is an exciting opportunity to work in a fast-paced environment that values innovation and continuous improvement.

Employee Applicant Privacy NoticeAbout Us:Join us in shaping a brighter financial future. At SoFi, we are revolutionizing the personal finance experience for our millions of members through innovative mobile technology.As a next-generation financial services company and national bank, we pride ourselves on being at the forefront of an unprecedented transformation in the industry. Our core values guide our efforts every day, driving meaningful changes that impact people's lives. Invest in yourself, your career, and the financial world with us.SoFi is on the lookout for a seasoned and driven Senior Staff Data Engineer to lead our Data Engineering group within the SoFi Data Platform (SDP) division. The SDP's mission is to harness data across SoFi, enabling the development of personalized and engaging experiences for our members.The Role:In this position, you will have the chance to significantly influence and steer the architecture of our next-generation AI-powered SoFi Data Platform (SDP). You will enhance data reliability through AI-driven workflows, tools, and practices. You will be responsible for leading, defining, and tackling complex problems in a fast-paced, collaborative environment. The ideal candidate will be a mentor and technical leader who is hands-on, with a strong sense of ownership and a commitment to delivering results.

Join fuku as a Senior/Staff Engineer, where you will play a pivotal role in shaping the future of global payments infrastructure. This position is based in either San Francisco, CA, or New York, NY. At fuku, we are committed to revolutionizing the way payments are processed, currently facilitating $1.5 billion annually to over one million payees. Our focus is on developing high-scale, reliable backend systems that ensure seamless transactions for gig workers and businesses alike.Our company culture promotes:- Autonomy and ownership in your work- Fast-paced, iterative product development- Collaboration with a team of highly skilled engineers- Designing systems capable of handling extensive financial data reliablyAs a Senior/Staff Engineer, you will be responsible for designing, building, and scaling production-ready backend systems capable of processing large volumes of data. You will work across the entire stack, partner with product and engineering leadership, and make significant technical decisions.This role is ideal for engineers who:- Excel in high-impact, ambiguous environments- Enjoy constructing end-to-end systems with tangible results- Are passionate about developing scalable FinTech infrastructure- Thrive in an environment that encourages rapid iterations and robust system development.Your tech stack will include:- Frontend: React- Backend: Python- Infrastructure: AWS, ECS- Tools: GitHub, Linear, Slack, NotionResponsibilities:- Design and implement scalable backend systems for high-throughput payments- Launch and refine applications and large-scale software projects- Collaborate with product and engineering teams to drive impactful results- Work with substantial datasets and distributed systems- Optionally engage in recruiting activities, including sourcing and interviewing engineering talent.

Are you ready to make a difference? Join our team! GoFundMe stands as the world's leading platform for community-driven benevolence, passionately committed to facilitating mutual assistance among individuals and nonprofits. Since our inception in 2010, we have empowered our community to raise over $40 billion, fostering a culture of support and compassion. We are on the lookout for an enthusiastic and skilled Senior Staff Software Engineer who brings a robust background in developing scalable, high-performance fintech or wealth management solutions. In this impactful role, you will architect and create innovative infrastructures from the ground up, designed to support large-scale, mission-oriented fintech products that empower millions worldwide. Your contributions will play a crucial role in crafting seamless, user-centric experiences that enable meaningful community contributions and drive positive change. As a pivotal technical leader, you will have the opportunity to influence the architecture and strategic direction of our systems, enhancing both our company and the communities we serve. If you're eager to grow both personally and professionally while making a significant impact on GoFundMe's offerings, users, and the causes that resonate most, we want to hear from you! Candidates for this position must be based in the San Francisco Bay Area, with an in-office presence required three days a week.

Join Us at ApiphanyAt Apiphany, we are at the forefront of foundational AI technology, driving innovation in physical product development. Our mission is to support global leaders in automotive, aerospace, medtech, and energy sectors by transforming complex, unstructured technical data into actionable insights in real-time. With investment from notable firms like Markforged, Databricks, GM, and Character, we aim to redefine engineering decision-making, simplifying complexity for top-tier manufacturers worldwide.Our cutting-edge models are designed to tackle the intricacies of engineering and manufacturing, incorporating a deep understanding of physics, design specifications, and program constraints. We are a compact yet highly skilled team composed of builders from prestigious institutions including Stanford, Berkeley, MIT, UW, and CMU, alongside industry veterans from GM, Ford, and Genesis Therapeutics. Together, we share a passion for revolutionizing hard-tech and establishing a company that sets the standard in our field.Your RoleIn the role of Senior / Staff Backend Engineer at Apiphany, you will take charge of designing, building, and scaling the essential systems that drive our intelligence platform. You will be responsible for developing low-latency backend services and APIs capable of processing extensive engineering data streams, maintaining security and compliance, and architecting systems for optimal performance and availability. Additionally, you will influence long-term architectural decisions, guide your colleagues through mentorship, and establish best practices for scaling backend services to deliver robust and high-performance applications.

About daydreamAt daydream, we are revolutionizing the SEO landscape by developing the world's most advanced SEO agent, complemented by a team of top 1% human experts. Our goal is to manage organic search intricately, freeing our clients from the burdens of hiring specialized teams, evaluating multiple tools, or managing external agencies.In today's competitive environment, excelling in search demands the production of expert-level content at scale, alongside constant adaptation to shifts in ranking systems and user behavior. Traditional tools merely provide metrics without actionable insights, while agencies rely on cumbersome manual workflows that fail to generate compounding growth. Even well-resourced teams often find it challenging to translate sustained efforts into consistent results.daydream simplifies this landscape by consolidating fragmented tools and external vendors into a single coherent system that continuously plans and executes SEO strategies. Our SEO agent takes charge of analysis, planning, and content generation, while seasoned Growth Leads translate this work into actionable outputs—shipped pages, technical adjustments, and updated priorities—holding accountability for performance over time.We have successfully raised over $20M from notable investors including First Round Capital, Basis Set Ventures, WndrCo, and SOMA Capital, and our growth is supported by industry leaders from Notion, Airtable, Webflow, and Dropbox, such as Lenny Rachitsky and Eli Schwartz, author of Product-Led SEO.The TeamYou will collaborate closely with a dedicated, senior team across engineering, design, and growth:Shravan (CTO), who previously served as an Engineering Lead at Flixed and a Software Engineer at Facebook, focusing on large-scale web scraping for Facebook Jobs and Meta Reality Labs.Vishruth (Founding Applied AI Engineer), a former Data Scientist at Klaviyo specializing in NLP, with a robust research background from Cornell.Daniel (Founding Applied AI Engineer), who previously worked as a Data Engineer on Tesla’s Autopilot team, specializing in large-scale data systems and applied machine learning, and was formerly the Lead Data Engineer at Replit.Tom (Founding Designer), who led product design at Blockless and plays a significant role in UI engineering.You will also interact directly with Growth Leads, senior SEO practitioners who manage the system daily and provide invaluable feedback on AI performance in real-world applications.Your ImpactIn your role as a Staff Engineer at daydream, you will provide vital technical leadership across the product while remaining deeply engaged in hands-on execution. You will closely collaborate with the CTO to define system architecture, guide project execution, and elevate quality standards throughout the engineering organization.

Join Runlayer as a Staff Identity Engineer, where you will play a pivotal role in shaping the identity and authentication framework that underpins every AI-to-enterprise connection on our innovative platform.At Runlayer, we are at the forefront of AI integration, ensuring enterprises can safely adopt our pioneering MCP (Multi-Cloud Platform) standard, which has been embraced by leading companies such as Anthropic, OpenAI, Google, and Microsoft. With our recent funding of $11M from Khosla Ventures and Felicis, we are poised for rapid growth.Our team, comprised mainly of engineers, has previously developed AI Actions for OpenAI and successfully shipped Zapier Agents to a vast user base. We are now focused on delivering the tools that enterprises need for secure MCP adoption.Why You'll Thrive Here:Impact: Take ownership of the identity and authentication layer that secures every connection on our platform.Excellence: Collaborate with a team of engineers with experience in deploying AI systems at scale.Ownership: Influence the development of MCP and AI agent authentication from initial specifications to production-level code.What You'll Do:Design and implement authentication and authorization systems for MCP servers (OAuth 2.0, Dynamic Client Registration, token management).Enhance our OAuth broker to facilitate enterprise identity integrations across multiple vendors.Craft identity propagation mechanisms for AI agents, ensuring secure and auditable access to enterprise systems.Integrate with enterprise identity providers such as Okta, WorkOS, Azure AD, and SCIM systems.Establish fine-grained access control policies for MCP tools and resources.Collaborate with customers like Gusto and Rippling to address real-world identity challenges.Contribute to the MCP Auth specification, defining agent identity across the industry.What We're Looking For:5+ years of software engineering experience with a strong emphasis on identity, authentication, or authorization systems.Proficiency in developing and implementing OAuth 2.0 and related technologies.Experience with identity providers and SCIM integrations.Strong problem-solving skills and the ability to collaborate with cross-functional teams.

At Runlayer, we are at the forefront of AI innovation, enabling enterprises to harness the power of AI agents, tools, and workflows safely and efficiently. Our mission is to empower organizations to transition into the future of AI without compromise.Our accomplished team has developed AI Actions for OpenAI, successfully deployed Zapier Agents to millions, and launched the pioneering remote MCP server in collaboration with Anthropic. With a co-creator of MCP on our cap table, we are committed to establishing the protocols and platforms necessary for enterprises to thrive using advanced AI technologies.Runlayer is a comprehensive platform for MCPs, Skills, and Agents. We prioritize security, governance, and observability, allowing companies to advance AI initiatives across their operations without exposure to unnecessary risks. Backed by an $11M investment from Khosla Ventures and Felicis, our clientele includes industry leaders such as Gusto, Instacart, and Opendoor.Join our agile team of 25, predominantly engineers, and play a pivotal role in shaping the future of AI. If you're passionate about redefining how AI can drive business success, this is your opportunity.

At Crusoe, we are on a mission to revolutionize the future by accelerating the abundance of energy and intelligence. We are building the foundational engine that empowers individuals to create bold innovations with AI while ensuring sustainability, speed, and scalability.Join us in the forefront of the AI revolution with cutting-edge sustainable technology. You will play a pivotal role in driving meaningful innovation, making a significant impact, and collaborating with a team that is leading the way in responsible, transformative cloud infrastructure.About the RoleAs a Senior Staff Cloud Support Engineer, you will serve as a technical expert within Crusoe Cloud and significantly enhance the efforts of our Customer Experience, SRE, Networking, Fleet, and Product teams. Your role transcends basic ticket resolution; you will design reliability frameworks, influence architectural decisions, mentor senior engineers, and safeguard revenue by averting large-scale incidents. With profound expertise in Linux systems, Kubernetes, networking, and AI/ML infrastructure, you will apply your knowledge with a strong focus on customer satisfaction. You will be comfortable navigating uncertainty, leading incident responses, and shaping the global scaling of high-performance AI infrastructure.Key ResponsibilitiesAct as the top escalation point for complex P1/P0 incidents.Lead cross-functional investigations into root causes involving compute, networking (IB/RDMA/RoCE), storage, and orchestration layers.Collaborate with SRE and Software teams (Storage, Networking, Compute, K8) to devise systemic solutions rather than temporary fixes.Reliability ArchitectureDesign and enhance node validation, burn-in processes, performance baselining, and release readiness.Influence Kubernetes architecture, workload orchestration (Slurm, Terraform), and AI/ML cluster stability.Minimize MTTR and prevent incident recurrence through structural enhancements.AI/ML Infrastructure ExpertiseTroubleshoot NCCL, IB, GPU driver/firmware issues, and distributed training failures.Support complex AI workloads (training + inference) through performance tuning and observability enhancements.Customer-Facing AuthorityAct as a senior technical advisor during high-stakes customer incidents.

About Us:At Parafin, we are dedicated to empowering small businesses, which are the foundation of our economy. Traditional banking solutions often fall short in supporting these enterprises, and that's where we come in. We create technology that simplifies access to essential financial tools for small businesses through their existing sales platforms.We collaborate with notable partners such as DoorDash, Amazon, Worldpay, and Mindbody to provide fast, flexible funding options, spend management solutions, and savings tools to small business users via seamless integration. Parafin handles the complexities of capital markets, underwriting, servicing, compliance, and customer support for our partners.Our team consists of innovators from leading companies like Stripe, Square, Plaid, Coinbase, and Robinhood, all driven by a shared passion for developing tools that foster the success of small businesses. With backing from prominent venture capital firms including GIC, Notable Capital, Redpoint Ventures, Ribbit Capital, and Thrive Capital, Parafin is a Series C company that has raised over $194M in equity and $340M in debt facilities.Join us in creating a future where every small business has the financial resources they need.About the PositionWe are seeking an experienced security-focused engineer to enhance and scale Parafin's security measures across our cloud and platform environments. Our Security and Infrastructure team is responsible for the foundational systems that power all of Parafin—from compute and networking to identity management and compliance. You will play a crucial role in ensuring these systems are secure, reliable, and compliant.In this role, you will design and implement controls, tools, and processes that maintain the resilience and compliance of our infrastructure, all while enabling developers to operate swiftly and safely. You will collaborate closely with various engineering and compliance teams to bolster our approach to access management, application security, threat monitoring, and incident response.

Role Overview Crusoe is seeking a Senior Staff Software Engineer focused on CAPE for its San Francisco office. This role centers on designing and building software solutions that support Crusoe's mission to advance technology in the energy sector. What You Will Do Design and implement software systems for CAPE projects Collaborate with cross-functional teams to deliver solutions that align with user needs and company goals Tackle complex technical challenges in support of Crusoe's energy initiatives What We Look For Strong technical background in software engineering Experience solving complex problems and delivering reliable software Ability to work effectively with colleagues across multiple disciplines Location San Francisco, CA - US

At Tanagram, we are on a mission to revolutionize agentic coding by transforming the way engineering lessons are harvested from codebases, code reviews, incident post-mortems, and Slack communications. Our innovative approach provides real-time guardrails that identify and rectify risky coding patterns, empowering teams to accelerate their shipping process while minimizing potential pitfalls.We are assembling a small, diverse group of outstanding engineers who are passionate about the future of agentic coding. Our ideal candidates are detail-oriented, possess a high level of agency, and are adept at identifying critical problems to solve, building exceptional products, and continuously iterating towards superior solutions.In this role, you will engage with our entire technology stack, from our Typescript + React frontend to our Python/Go backend and LLM infrastructure. You should possess a keen intuition for selecting the right tools and configuring them to achieve optimal user results.You are proactive and prefer to take immediate action rather than postponing tasks. You communicate your intentions clearly and follow through promptly.We operate in a hybrid work environment, primarily based in San Francisco (Mission Bay) and NYC, but we welcome strong remote candidates. For more insight into our work culture, refer to our guidelines.

About MetaDAOMetaDAO is at the forefront of revolutionizing decision-making through innovative decision markets, empowering individuals and organizations to shape the most critical choices in the world.Our flagship offering is a cutting-edge fundraising platform that leverages decision markets to minimize the risks of fraud and misallocation for investors. Since its monetization in October 2025, the platform has achieved a remarkable run rate revenue of approximately $9 million annually.With $12 million raised from leading investors, we are dedicated to assembling a world-class team. If you share our belief in the transformative power of markets, we invite you to join us in this exciting journey.

About HandshakeHandshake serves as the premier career network tailored for the AI-driven economy, connecting 20 million knowledge workers, 1,600 educational institutions, and 1 million employers, including all of the Fortune 50. Our platform is trusted for career exploration, recruitment, and skills enhancement, catering to freelance AI training opportunities, internships, and full-time roles. This distinctive offering has fueled exceptional growth, with a projected tripling of our ARR by 2025.Why consider joining Handshake now:Influence the trajectory of careers in the AI sector globally, making a tangible impact for your community and network.Collaborate closely with leading AI laboratories, Fortune 500 companies, and top-tier educational institutions.Become part of a team comprising leaders from Scale AI, Meta, xAI, Notion, Coinbase, and Palantir, among others.Help build a rapidly expanding business with significant revenue potential.Role OverviewIn the position of Staff Forward Deployed Engineer, you will be pivotal in crafting and executing the technical strategy for how Handshake provides engineered solutions to our key clients, including premier AI labs. You will act as a trusted technical advisor to both our clients and internal leadership, taking ownership of the vision for scaling our forward-deployed engineering function while being actively involved in addressing our most complex deployment challenges. Your contributions will have a direct impact on product direction, influence platform architecture, and set the technical standards for the entire forward-deployed engineering team.This role presents a unique chance to blend organization-wide technical influence with significant customer impact, establishing the framework for the development, delivery, and scaling of Handshake's most essential partnerships.Location: San Francisco, CA | 5 days/week in-officeDefine the technical strategy and architectural vision for forward-deployed engineering, ensuring that solutions are scalable, repeatable, and aligned with Handshake's platform roadmap.Act as the senior technical point of contact for our most complex and high-value client engagements, translating strategic business needs into engineering direction.Foster cross-functional collaboration among forward-deployed engineering, product, platform, and customer-facing teams to ensure deployed solutions enhance and inform the core product.Design and implement production-grade systems for innovative customer challenges.

Based in the vibrant city of San Francisco, Arine is an innovative healthcare technology and clinical services company dedicated to ensuring that each individual receives the safest and most effective treatments tailored to their unique healthcare needs.In the current landscape, incorrect medications and dosages contribute to an astonishing $528 billion in waste and avoidable harm within the U.S. healthcare system annually. Arine is at the forefront of redefining exemplary healthcare by tackling these challenges head-on with our state-of-the-art software platform (SaaS). We leverage advanced data science, machine learning, artificial intelligence, and deep clinical knowledge to create a patient-centric approach to medication management, enabling us to design and implement personalized care plans on a large scale for both patients and their care teams.Our commitment is to enhance the lives of complex patients who significantly influence healthcare costs and are often challenging to identify and support. These patients encounter numerous obstacles, including intricate prescribing issues across various medications and healthcare providers, medication management for multiple chronic conditions, and difficulties accessing care. Supported by leading healthcare investors and partnerships with top healthcare organizations, we provide actionable recommendations and facilitate clinical interventions, resulting in substantial health improvements for patients and cost efficiencies for our clients.Why Choose Arine?:Dynamic Team and Culture - Our collective mission inspires us to excel in our work. We possess a relentless drive and dedication to innovate, aiming to lead the market in medication intelligence.Making a Tangible Impact in Healthcare - We are committed to saving lives and empowering individuals to achieve better health outcomes through our innovative solutions.

About SpotOnAt SpotOn, we are revolutionizing the restaurant industry by providing independent restaurants with cutting-edge technology to thrive in a competitive market. From our award-winning point-of-sale systems to advanced AI-driven profit enhancement tools, every solution we offer empowers operators to increase profitability, optimize operations, and retain top talent. Our commitment to our clients is backed by a dedicated team that genuinely cares about their success.Ranked #1 Restaurant POS by G2 (Fall 2025), based on user feedbackRecognized as the top-rated point-of-sale (POS) for restaurants, bars, retail, and small businesses by Capterra usersHonored as a Great Place to Work and recipient of Built In’s Best Workplaces awards for consecutive yearsWe prioritize agility, empathy, and advocacy for independent restaurant operators, allowing them to focus on their passion. If you aspire to make a meaningful impact with dedication and drive, SpotOn is your ideal workplace.About the Accelerate TeamThe Accelerate team, consisting of five skilled engineers, is dedicated to redefining software development within the fintech realm through AI-native engineering practices. With direct support from senior leadership and defined project goals, we are committed to setting new industry standards in software building.We are seeking a Staff/Principal Individual Contributor (IC) with proven experience in AI-assisted engineering at scale. This is not a role for the AI-curious; you are someone who integrates AI into coding daily. You have developed agents that deliver tangible results. Your insights on model selection, agent limitations, and effective guardrails are backed by real-world experience. You are eager to apply what you’ve learned on a larger scale.As the most senior technical AI expert on the team, you will be the go-to person for architectural guidance, tackling complex challenges, and establishing technical benchmarks.The Role: Technical Lead, Not ManagerThis position is not about merely setting up CI/CD pipelines or integrating Copilot. You are the architect behind the systems that transform how SpotOn engineers develop software. You will:Establish yourself as the technical authority in AI engineering. You will define the standards for AI utilization in code generation, review, testing, and task automation. Your focus will be on designing systems, workflows, and guardrails that ensure AI-aided development is safe, measurable, and scalable in a PCI-compliant environment.