Staff Software Engineer - Backend at 3Y Health | San Francisco

About Onos HealthAt Onos Health, we are on a mission to revolutionize healthcare by ensuring that every dollar spent is directed towards the highest quality of care. A staggering 30% of U.S. healthcare expenditure is squandered, primarily due to inefficient care and administrative inefficiencies stemming from the disconnect between providers and payers.We are tackling this problem head-on by constructing the largest AI-driven healthcare data platform. Our innovative models empower payers to make rapid and precise decisions regarding their patient populations. By directing members towards appropriate care, Onos is transforming healthcare funding, ensuring it drives quality outcomes while enhancing affordability.Having recently secured $6M in Seed funding from prestigious investors, Onos is currently collaborating with some of the largest health plans in the nation, successfully signing our first national plan shortly after our launch.Join us in defining a new category in healthcare and contribute to a brighter future for care delivery.

Join Our Team! Be part of HingeSelect, an innovative internal startup at Hinge Health, dedicated to revolutionizing access to orthopedic care for our members. As the technical cornerstone of our initiative, you will play a pivotal role in connecting members with virtual orthopedic specialists and a top-tier network of in-person providers. This is an exceptional chance to thrive in a dynamic 0-to-1 environment, utilizing the resources of a leading market player to tackle intricate challenges in musculoskeletal (MSK) care delivery.Your ImpactFirst 3 Months: Immerse yourself in our tech stack (Golang, TypeScript, React Native) to deliver critical features for our Specialist Visits product. You'll set foundational engineering standards for this new venture and cultivate trust with cross-functional teams in Product and Design.First 6 Months: Spearhead complex, cross-team projects that unlock new product functionalities while guiding the team through uncertainty to create sustainable solutions. You'll mentor senior engineers, elevate the technical standards, and ensure our clinical journeys are user-friendly and of the highest quality.First Year: Lead the architectural vision for our ambitious 2026 scaling plans, designing robust services capable of supporting 100x growth. You'll influence the long-term technical strategy, balancing immediate deliverables with the reliability and maintainability essential for large-scale expansion.Who You AreA Strategic Architect: You excel at crafting technical strategies for ambiguous problem spaces, designing scalable systems and APIs (REST or gRPC) that accommodate exponential growth and future product demands.A Force Multiplier: Your success is defined by your team's achievements. Through mentorship, design insight, and constructive feedback, you enable fellow engineers to work more efficiently and autonomously.A Lifelong Learner: You embrace AI thoughtfully to enhance workflows and improve team effectiveness. Your passion for our mission drives you to constantly explore innovative ways to leverage technology to assist individuals in overcoming chronic pain.

fractional-ai is looking for a Senior or Staff Software Engineer to join the San Francisco office. This position centers on building advanced AI solutions with a team that values both technical depth and collaboration. Role overview This role focuses on designing and developing AI-driven systems. The work involves solving technical challenges and contributing to projects that push the boundaries of what AI can achieve. Collaboration with other engineers and stakeholders is a key part of daily responsibilities. Who will thrive Experienced engineers with a strong background in software development Those who enjoy working on complex technical problems Individuals who value teamwork and open communication Location This position is based in the San Francisco office.

Join Saris AI as a Staff Backend Software Engineer, where you will play a pivotal role in developing innovative solutions that harness the power of artificial intelligence. In this dynamic position, you will collaborate with cross-functional teams, design scalable systems, and contribute to the overall architecture of our backend solutions.

Join Onos HealthAt Onos Health, our mission is both straightforward and audacious: to ensure that every healthcare dollar is spent on delivering top-notch care. Currently, an alarming 30% of total healthcare spending in the U.S. is squandered due to inefficient care and administrative challenges stemming from misalignment between healthcare providers and payers.We are tackling this issue head-on by developing the largest AI-powered healthcare data platform. Our innovative models empower payers to make quicker, more accurate decisions across their patient populations. By steering members towards appropriate care, we aim to redirect funds to high-quality services that enhance outcomes while making healthcare more affordable.Having recently secured a $6M Seed round from esteemed investors, Onos is already collaborating with some of the largest health plans in the nation, having signed our first national plan just months after our inception.Join us in redefining healthcare for the better.Why Choose Onos?Make a real difference: Contribute to fixing systemic issues in healthcareCollaborate directly: Work alongside seasoned founders with extensive healthcare and data experienceCulture: Become part of a high-performing, transparent, and results-driven teamOwnership: Enjoy significant responsibility and autonomy from your first dayOpportunity: Play a crucial role in building a rapidly growing, category-defining healthcare AI firmYour RoleWe are on the lookout for a skilled and driven full-stack product engineer eager to enhance the delivery of healthcare services across the United States. You will take charge of developing critical components of the Onos platform, including our user-facing applications and APIs. As an early member of the team, you will be expected to wear multiple hats, including frontend developer, UI/UX designer, and backend developer. This is a hybrid role based in San Francisco, requiring in-office work at least once a week.Key Responsibilities at Onos:Lead the development of our end-user web application utilized by healthcare administrators and providersDesign and implement major components of the platform to offer actionable insights and recommendations to health plan administrators while supporting robust workflows to combat fraud, waste, and abusePrototype new features and use cases for demonstrations and testing

About the RoleJoin Saris-AI, an innovative applied AI startup based in San Francisco and Montreal, where we are revolutionizing the banking industry. Our mission is to address a $100 billion annual challenge, growing rapidly each quarter, as we explore the potential of advanced multi-turn AI systems.We focus on automation challenges that require extensive contextual reasoning, tool integration with existing systems, and adherence to compliance requirements—problems that lack straightforward solutions.Our successful deployment of real AI agents managing customer workflows has led to a burgeoning client base, and we are expanding quickly. We seek highly skilled technical professionals who aspire to make a significant impact from the outset.Core Engineering TeamWe are in search of a passionate Software Developer who excels in dynamic and ambiguous settings. You should have experience guiding products from the initial version to large-scale implementation, and a penchant for crafting sustainable, elegant systems.Your Key ResponsibilitiesConceive, develop, test, deploy, maintain, and enhance AI-driven software solutions tailored for the fintech sector.Manage project timelines effectively, prioritizing tasks to deliver exceptional features.Contribute to product and business strategies as a key player, influencing both technical frameworks and overarching goals.Encourage and uphold best practices, including code reviews and testing.Candidate ProfileProven experience in backend/fullstack engineering, particularly within SaaS projects with significant impact.Extensive knowledge of Python (Django, Flask, FastAPI), TypeScript (React), Docker, and cloud platforms (AWS/GCP).Solid track record in designing, constructing, and optimizing distributed systems.Strong foundation in both relational and non-relational databases (PostgreSQL, Redis).Expertise in API design (REST, GraphQL) and deployment practices.Preferred QualificationsExperience building intricate workflow orchestration systems.Familiarity with cloud infrastructure.Background in creating integrations or data pipelines.A passion for mentoring and developing team capabilities.

About Us:At Lunar, we are pioneering a transformative software platform tailored specifically for health systems. Our mission is to redefine healthcare through innovative, AI-driven solutions that empower hospitals to provide exceptional care to their patients. Our platform serves as the foundational backbone for modern health systems, effectively revolutionizing clinical and operational workflows with the world’s first AI-native hospital information system.This advanced platform marks a complete overhaul of the information infrastructure that underpins health systems. From doctors and nurses to pharmacists, lab technicians, coders, billers, supply chain professionals, and even patients, Lunar’s software seamlessly integrates all aspects of healthcare operations. We view this endeavor as the moon landing for healthcare—an audacious and impactful mission that many deem impossible.Supported by top-tier venture capital firms from Silicon Valley, we believe in the strength of a small, high-performance team of experienced professionals who operate at their fullest potential. We value individuals who are driven, inquisitive, possess strong judgment, and are committed to producing their best work.Our technology is built on Elixir, chosen for its robust fault tolerance, concurrency, and scalability—crucial for managing real-time patient data in critical environments such as Emergency Departments, ICUs, and Operating Rooms.We are in search of a Staff Product Engineer ready to tackle some of the most complex technical challenges in healthcare, joining a small, dynamic, and mission-focused team. If you are passionate about crafting clean, resilient code and eager to rebuild the software infrastructure of contemporary hospitals from the ground up, we would love to connect with you.In your first six months, you may encounter these significant technical challenges:Developing a Modern Cloud Architecture: We have the unique opportunity to design a cloud-native platform from the ground up, leveraging Elixir without the constraints of legacy systems.Creating an Enhanced Access Control System for Clinical Data: Your task will include developing a sophisticated access control system with detailed permissions that honors the structure of clinical data and patient ownership, enabling population-level insights for improved public health.Ensuring 24/7 Operational Uptime for Hospitals: You will design and implement infrastructure capable of managing rolling deployments and failover solutions to maintain seamless hospital operations.

Join the Okta FamilyAt Okta, we are redefining identity management for the digital world. Our mission is to empower everyone to securely access any technology, anywhere, on any device or application. With our versatile Okta Platform and Auth0 Platform, we provide unparalleled security and automation, making identity the cornerstone of business security and expansion.We value diverse perspectives and experiences; we seek lifelong learners who can contribute to our mission with their unique backgrounds. Be a part of our journey to build an identity-centric future.The Global AI Engineering TeamBecome part of a unified global AI engineering team that spans across the US and India. Engage in pioneering applied AI projects while laying the foundational elements that facilitate secure, scalable AI at an enterprise level. If your passion lies in creating AI that is smarter, faster, and perpetually secure, this is your chance to make a significant impact.The Staff Software Engineer OpportunityWe are looking for a Staff Software Engineer to join our global AI Engineering team, focused on building the future of secure, enterprise-grade AI Agents. You will be instrumental in designing and developing user-friendly experiences and comprehensive AI solutions that drive them. In this position, you will help shape the platforms and services that support Okta’s internal transformation, contributing to the infrastructure and applications that bring intelligent automation and GenAI to fruition.

Ironclad stands at the forefront of the AI contracting revolution, seamlessly converting agreements into valuable assets. Our platform accelerates contract workflows, delivers instant insights, and empowers teams to drive their work forward—all while keeping you in control. Whether you're engaged in buying or selling, Ironclad streamlines the entire process on a singular, intelligent platform, giving leaders the visibility they need to stay ahead. Esteemed organizations such as OpenAI, the World Health Organization, and the Associated Press rely on Ironclad to expedite their operations.Our commitment to excellence has not gone unnoticed; we are regularly lauded as an industry leader, recognized as a Leader in the Forrester Wave and the Gartner Magic Quadrant for Contract Lifecycle Management. Additionally, we have been honored as a Fortune Great Place to Work and listed among Fast Company’s Most Innovative Workplaces. Ironclad has also earned a spot on Forbes’ AI 50 and Business Insider’s list of Companies to Bet Your Career On. We are supported by top-tier investors including Accel, Y Combinator, Sequoia, BOND, and Franklin Templeton. For further details, visit www.ironcladapp.com or connect with us on LinkedIn.This position is hybrid, requiring in-office attendance at least twice a week on Tuesdays and Thursdays for collaboration and engagement, with potential additional days for team or company events.Engineering at IroncladIn the capacity of Staff Software Engineer, you will collaborate with cross-functional teams in engineering, product, design, and go-to-market efforts to identify impactful challenges and craft, develop, and deploy innovative solutions. You will be instrumental in shaping a platform that enables legal teams and business partners to excel at scale. As we usher a time-honored profession into the digital era, your contributions will define the future of contracting.We invite seasoned engineers from diverse backgrounds who possess robust coding skills and a proven history of delivering thoughtful, reliable products. Join our collaborative, ego-free team that values mutual learning, diverse perspectives, and an inclusive, supportive work environment. If our mission resonates with you and you are eager to help create a product that legal and business teams cherish, we would love to connect!

About UsAt 3Y Health, we are pioneering AI-driven software solutions to empower healthcare providers and streamline the staggering administrative complexity that consumes 40% of the industry’s revenue. Our comprehensive platform unveils opportunities for clinician entrepreneurs, enabling medical professionals to successfully launch, operate, and expand private practices. By equipping these independent practices with cutting-edge AI and automation, we’re assisting providers in reclaiming their time, nurturing successful businesses, and delivering enhanced outcomes for their communities. Backed by over $200M from esteemed investors such as Founders Fund, General Catalyst, Softbank, and 8VC, we are on a mission to revolutionize healthcare.About the RoleWe are in search of a skilled Fullstack Engineer to help us develop intuitive and high-performance user interfaces that resonate with our providers. The ideal candidate will be a product-oriented engineer with extensive expertise in modern web technologies (React, TypeScript, Node) and a keen eye for design and user interaction excellence. You have a passion for writing clean, modular code and can collaborate effectively with design and product teams to bring beautiful experiences to fruition. Candidates with experience as a founding engineer or founder are especially desirable, as we value a strong sense of ownership, speed, and a commitment to continuous iteration.This position requires a dynamic individual capable of steering architectural decisions and collaborating cross-functionally with engineering, design, and product teams. As a Fullstack Engineer, you will play a key role in delivering scalable systems, collaborating on product development, and shaping the user experience of our practice management platform.ResponsibilitiesDevelop and maintain reusable, high-performing, and accessible frontend components utilizing React and TypeScript.Collaborate closely with designers to create stunning, user-focused experiences.Own the UX refinement and interaction quality; consistently seek opportunities to enhance usability.Partner with backend engineers to define API interfaces, and occasionally implement backend logic as necessary.Shape frontend architectural decisions and advocate for best practices in code modularity and maintainability.Engage in code reviews, technical discussions, and team rituals.Adopt a founder’s mindset—be proactive, product-focused, and eager to take ownership.

fractional-ai is hiring a Software Engineer to join the team onsite in San Francisco. This role centers on building and improving technology that advances artificial intelligence. Role overview As a Software Engineer, you will work closely with others to develop and support projects that drive the company’s AI initiatives forward. The work involves collaborating with colleagues and contributing technical solutions in a team setting. What you will do Develop software for AI-driven projects Collaborate with team members in the San Francisco office Contribute ideas and technical expertise to ongoing initiatives Requirements Interest in technology and artificial intelligence Ability to work onsite in San Francisco Strong motivation to learn and contribute to team projects

Become a Part of ClericAt Cleric, we are envisioning a future where engineers can dedicate their talents to creating groundbreaking products, liberated from the burdens of operational tasks. Our current focus is an AI-driven Site Reliability Engineering (SRE) agent that autonomously resolves issues within production environments. This innovative solution employs a large language model (LLM) reasoning engine to understand, interpret, and implement solutions to production problems, even when faced with new challenges.Now is an incredible moment to join our team. We are a compact group of seasoned professionals in AI, software development, and infrastructure, supported by a prominent AI venture capital firm and Silicon Valley investors. Our product is actively utilized by leading technology companies in sectors such as fintech, ride-hailing, and autonomous vehicles.About the RoleWe are on the lookout for a Staff Software Engineer specializing in AI. In this role, you will spearhead the development of our SRE agent, focusing on its reasoning capabilities, learning processes, and integration. You will also work on the foundational runtime and technical architecture of our comprehensive product. Your contributions will be crucial in maintaining high engineering standards, crafting exceptional customer experiences, and advancing the agent's ability to tackle increasingly complex SRE challenges in a dynamic, non-deterministic environment where success is evaluated through outcomes rather than code inspection.What You'll Do:Design and implement frameworks for evaluating agent performance and reliabilityAnalyze agent behavior beyond mere code: trace reasoning, tool selections, and contextual factors to comprehend decision-making processes.Develop autonomous agents capable of executing intricate, multi-step tasksCreate self-improving systems that adapt based on feedback and outcomesEnhance agent observability to address routine issues related to tool usage and agent orchestrationYou Bring:Extensive experience in building and managing production systems, with a solid understanding of machine learning fundamentals, including recall, precision, and F1 scores, along with the knowledge that accuracy alone can be misleading.Experience in building at least one agent from the ground up.Regular use of coding agents and AI assistants for practical tasks, with insights into their strengths and weaknesses.Strong foundational skills in software engineering, with informed perspectives on developing reliable, scalable, and secure software.Experience operating high-scale distributed infrastructures, with an emphasis on performance and efficiency.

About EliseAIAt EliseAI, we are dedicated to transforming crucial sectors such as housing and healthcare. Securing a place to live and accessing quality healthcare should not be so challenging. By embedding AI agents into existing workflows, we enhance efficiency, reduce expenses, and elevate the overall experience for all stakeholders.Housing: We streamline the process for renters to tour apartments, sign leases, submit maintenance requests, and engage with property teams, consolidating everything they need for their home into a single platform.Healthcare: We simplify appointment scheduling, intake form completion, and patient-provider communication, allowing everyone to prioritize health over paperwork.With EliseAI, organizations can minimize manual tasks, enhance accessibility, and provide an integrated experience across vital services. We recently secured a $250 million Series E funding round led by Andreessen Horowitz to further our mission.About The RoleIn the position of Staff Software Engineer at EliseAI, you will not merely write code; you will develop software that enhances business operations and positively impacts lives. Rather than adhering to an existing blueprint, you will be responsible for crafting one. Each day will present opportunities to identify scalable solutions and execute them. You will collaborate with a small team of elite engineers, taking on substantial ownership, leading projects, and bringing your innovative ideas to fruition—essentially functioning as a small startup within a dynamic environment.Key ResponsibilitiesDevelop systems that facilitate intelligent communication and operation for autonomous buildings.Engage directly with customers to design and manage new product features from initial concept through to deployment.Enhance the scalability and reliability of our fundamental infrastructure.Suggest and implement substantial improvements to our architectural frameworks and design methodologies.Collaborate with product and design teams to transform AI capabilities into compelling user experiences.Continuously deploy new features and enhancements in a fast-paced, iterative environment.

The OpportunityBecome a vital part of a transformative team dedicated to redefining chronic pain treatment by targeting its fundamental source: the brain. Hinge Health is broadening its horizons beyond traditional physical therapy to create a holistic Brain Health ecosystem. In this pivotal role, you will spearhead the architecture and development of agentic AI systems designed to provide personalized pain reprocessing therapy and mindfulness practices. You will act as a bridge between clinical science and software engineering, crafting the technology that empowers millions of members to retrain their nervous systems in processing pain.Your ImpactArchitect Innovative AI Therapies: Develop and enhance agentic AI systems that facilitate multi-session conversational therapy while ensuring contextual continuity, emotional intelligence, and adherence to clinical standards.Create an Integrated Education Platform: Construct a centralized service that offers tailored pain science education and mindset strategies, customizing content to align with each member’s therapeutic objectives.Shape Technical Strategy: Collaborate with product and clinical leadership to define the long-term technical vision for Brain Health, strategically balancing immediate deliverables with the need for scalable, resilient infrastructure.Establish MLOps Standards: Develop best practices for model evaluation, effectiveness tracking, and safety measures, tailored to the unique requirements of mental health AI.Lead & Mentor: Serve as a technical guide for the team, mentoring fellow engineers, fostering a culture of technical excellence, and promoting collaboration among data science, clinical, and platform teams.About YouA Visionary Builder: Beyond just coding, you design systems that scale. You possess a profound understanding of distributed systems, adeptly navigating the complexities of developing AI-driven products in a highly regulated healthcare setting.A Continuous Learner: You are at the forefront of AI and software engineering, continually assessing emerging technologies to enhance performance and refine the platform.A Collaborative Leader: You excel in multidisciplinary environments, effectively translating intricate technical concepts for clinical and product stakeholders to guarantee clinically sound and technically robust solutions.A Dedicated Owner: You take pride in every facet of your work, from architecture through to production support, embodying a DevOps culture to ensure seamless operations.

About LindyAt Lindy, we're on a mission to create an AI assistant designed for everyone — not just the tech-savvy or the builders, but for those who simply want to reclaim their time. The Lindy Assistant seamlessly integrates into iMessage, managing emails, calendars, and meetings with just a two-minute setup. We are crafting the essential bridge between powerful AI technology and the everyday lives of real people.The RoleAs a Staff Software Engineer, you will take charge of high-impact projects from inception to production in a dynamic environment where engineers prioritize creating exceptional products. Collaborating within a small, highly autonomous team, you'll be shipping updates multiple times a day. This position is perfect for someone driven by intrinsic motivation to build, who prioritizes speed without compromising quality, and who measures success by the impact of their work in production.

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.

Join Asana as a Staff Software Engineer in our innovative AI Studio. In this role, you will leverage your expertise in software engineering to drive the development of cutting-edge AI solutions that empower teams to work more efficiently. Your contributions will be pivotal in shaping the future of our product offerings.

Join David AI as a Staff Product EngineerAt David AI, we are pioneering the field of audio data research, applying a rigorous R&D methodology to create robust datasets that empower AI models. Our vision is to integrate AI seamlessly into daily life, with audio serving as the key medium. As the demand for high-quality training data grows, we position ourselves as the solution.Founded in 2024 by a team of seasoned engineers from Scale AI, we quickly garnered the trust of leading FAANG companies and AI labs. Our recent $50M Series B funding round was led by prestigious investors including Meritech and NVIDIA, underscoring our potential in the audio AI landscape.We pride ourselves on our dynamic, collaborative, and ambitious team, and we are on the lookout for exceptional talent in research, engineering, product, and operations to help us redefine audio AI.About Our Engineering TeamOur engineering team is at the forefront of innovation, building the infrastructure, platforms, and models that convert raw audio into valuable data for top-tier AI labs and enterprises. We are a close-knit group of product engineers, infrastructure experts, and machine learning specialists who are dedicated to establishing the first-ever audio data research organization.We operate with agility, taking ownership of our projects from inception to deployment, delivering production-ready solutions on a daily basis. Our engineers design real-time pipelines that manage vast amounts of speech data while deploying advanced generative audio models.Your RoleAs a Staff Product Engineer, you will spearhead our Product Engineering team, developing state-of-the-art products that enable our clients to harness audio data effectively for model training. You will collaborate with researchers to continually refine our data collection methodologies.Your ResponsibilitiesLead the development of full-stack features, rapidly iterating to deliver daily innovations to our users.Construct scalable systems that process terabytes of audio data and extract actionable insights.Deploy and assess LLM- and DSP-based solutions to enhance customer understanding of their data.Facilitate research iterations and deployment interfaces for data collection in collaboration with researchers and operations.

Responsibilities:Develop Our Product. Take ownership of software features that enhance our AI platform, empowering private market investors to analyze deals swiftly and accurately. This role requires you to actively engage in coding and delivering essential platform components from the ground up.Ensure Quality and Excellence. Establish and maintain coding standards, architectural guidelines, and review procedures; mentor fellow engineers. Co-cultivate a culture centered on practical, reliable, and test-driven development that swiftly meets business requirements.Scale for Growth. Assist in monitoring and scaling the architecture of our platform and its infrastructure.Collaborate Across Functions. Engage closely with product, security, and go-to-market teams to translate our strategic roadmap into actionable features and deliverables.