Senior / Staff Software Engineer at fractional-ai | San Francisco

Join our innovative team at Harvey as a Software Engineer focusing on our AI Platform. In this role, you will leverage cutting-edge technologies to develop and enhance AI-driven solutions that empower our users and transform industries. You will collaborate with cross-functional teams to design robust software architectures and implement scalable solutions that meet the needs of our diverse clientele.

Role overview Harvey seeks a Staff Software Engineer to strengthen the AI Platform team in San Francisco. The position focuses on designing and building advanced software solutions that extend the platform’s AI features. Collaboration is central to this role. The engineer will work closely with colleagues across different teams to deliver systems that are both scalable and efficient. Every project supports Harvey’s broader mission and long-term goals. What you will do Design and implement software components that enhance AI capabilities Work with teams throughout the company to deliver reliable, high-performance systems Contribute to platform improvements that support Harvey’s mission Location This position is based in San Francisco.

Join Harvey as a Staff Database Administrator (DBA) and play a crucial role in managing our database systems. You will ensure the performance, security, and integrity of our databases, working collaboratively with our software development teams.Your responsibilities will include designing, implementing, and maintaining database systems, optimizing performance, and providing technical support to end-users. If you are passionate about database management and have a keen eye for detail, we want to hear from you!

Join Perplexity as a skilled Software Engineer, where you will play a pivotal role in developing the next-generation AI Foundation and Platform. Our mission is to transform how individuals search and engage online. In this exciting position, you will contribute to building Perplexity's comprehensive AI data, evaluation, and personalization infrastructure, which underpins nearly all of our agent products.Technology Stack: Spark | AWS Data Stack (S3, RDS, DynamoDB, Docker, EKS, Kinesis) | Pytorch | Databricks | Snowflake | LLM APIsAs we continue to expand our user base and diverse use cases, our data stack ensures that millions around the globe receive fast, personalized answers.

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.

Join Harvey as a Senior Technical Recruiter, where you will play a pivotal role in attracting top-tier technical talent to our innovative team. You will collaborate closely with hiring managers to understand their needs, craft compelling job descriptions, and utilize various sourcing strategies to identify and engage potential candidates. Your expertise in the tech recruitment landscape will help us build a diverse pipeline of candidates that align with our company culture and values.

Why Join Harvey?At Harvey, we are revolutionizing the landscape of legal and professional services — not just through incremental changes, but with a complete transformation. By harnessing cutting-edge agentic AI, a robust enterprise platform, and extensive industry expertise, we are redefining how crucial knowledge work is conducted for generations to come.This is a unique opportunity to contribute to the creation of a generational company at a pivotal moment in its journey. With over 1000 customers across more than 58 countries, a strong product-market fit, and exceptional investor backing, we are rapidly scaling and carving out a new category in real-time. The challenges are ambitious, the expectations are high, and the potential for personal, professional, and financial growth is unparalleled.Our team is intelligent, driven, and passionately dedicated to our mission. We operate with agility, intensity, and a strong sense of ownership over the challenges we address — from initial concepts to long-term results. We maintain close relationships with our customers — from top executives to engineers — collaborating to tackle real issues with urgency and care. If you flourish in uncertain environments, strive for excellence, and want to help shape the future of work alongside others who elevate the standards, we welcome you to join us in building something exceptional.At Harvey, we are writing the future of professional services today — and we are just getting started.Role OverviewWe are seeking a GTM Business Analyst with a consulting mindset to become part of our GTM Technology team. In this position, you will not only manage tools; you will play a critical role in major projects that empower our global marketing, sales, and success initiatives. Act as a leading expert as we develop agentic applications and tailored tools that reflect Harvey’s distinctive standing in a swiftly changing industry.The ideal candidate should possess 4–6 years of experience at the crossroads of technology and business operations, ideally with a background in consulting or within a high-growth B2B SaaS context. You will serve as both an advisor and engineer for our technological stack, with a keen focus on the orchestration and data layers. This is a pioneering role at Harvey, requiring someone who is at ease with high levels of ownership and minimal explicit guidelines.Key ResponsibilitiesRoadmap Execution: Collaborate with GTM to convert business goals into technical specifications, acting as both project liaison and lead analyst. Work with a sense of urgency and agency once priorities are set with leadership.Orchestration: Collect requirements...

Join the Harvey RevolutionAt Harvey, we are revolutionizing the landscape of legal and professional services with innovative, end-to-end solutions. Our unique combination of cutting-edge AI, a robust platform, and extensive industry expertise is setting a new standard for how essential knowledge work is performed for generations to come.This is an incredible opportunity to be part of a transformative company at a pivotal moment in its journey. With over 1,000 clients across more than 60 countries, a strong alignment with market needs, and exceptional backing from investors, we are rapidly expanding and creating a new category in real time. The challenges are ambitious, the expectations are high, and the potential for personal, professional, and financial development is unparalleled.Our team is composed of highly skilled, driven individuals who are deeply aligned with our mission. We prioritize agility and intensity in our work, taking full ownership of the challenges we address—from initial concepts to long-term results. We maintain close relationships with our customers, collaborating across teams—from leaders to engineers—to tackle real issues with urgency and care. If you excel in dynamic environments, strive for excellence, and wish to help shape the future of work alongside high-achievers, we invite you to join us on this journey.At Harvey, we are writing the future of professional services today—and we’re just getting started.Role OverviewWe are on the lookout for a dedicated and detail-oriented Senior Payroll and Equity Analyst to enhance our expanding Finance team. In this pivotal role, you will be instrumental in ensuring the precise and timely management of payroll and equity processes throughout the organization. As a vital member of our payroll and equity division during this exciting growth phase, you will have the chance to develop scalable procedures, collaborate across departments including People Operations, Accounting, and Finance, and contribute significantly to delivering a superior employee experience. This position is ideal for a payroll and equity specialist who flourishes in a fast-paced, dynamic setting and is committed to operational excellence.

Join Condor Software as a Full-Stack Platform EngineerAt Condor, we are revolutionizing the financial infrastructure that supports clinical development. With billions invested annually in discovering and developing new therapies, we strive to connect clinical operations and finance into a cohesive system. By integrating real-time financial intelligence, we empower R&D and finance leaders with the tools they need to make informed, high-stakes decisions.We are an AI-driven, pharma-native infrastructure provider, scaling industry standards in collaboration with top-tier partners. Our platform facilitates prediction, control, and execution in the most complex R&D environments worldwide.The Importance of Your RoleHaving established ourselves as a trusted partner for enterprise teams, we are now focused on the challenging task of scaling our platform to meet increasing demands. As a rapidly growing company, backed by prominent investors like Felicis and 645 Ventures, this is a unique opportunity to contribute to the foundational infrastructure that will redefine how therapies reach patients.Your ResponsibilitiesAs a Full-Stack Platform Engineer, you will be pivotal in building and scaling the core platform that supports the financial intelligence infrastructure relied upon by leading biopharma companies. This role encompasses critical engineering tasks at the intersection of backend systems, cloud infrastructure, and intelligent automation, with a strong emphasis on reliability and scalability.Your primary focus will be on backend architecture, where you'll design and implement services that drive complex financial and operational workflows. You'll be instrumental in shaping data flow, workflow orchestration, and enabling emerging AI-driven capabilities. This role goes beyond simple integration; you'll be crafting robust primitives that support other teams as our product and customer base expand.Working as a core member of a cross-functional product team, you will closely collaborate with product managers, designers, quality engineers, and data specialists to transition features from concept to production. While backend expertise is crucial, you will also engage across the stack to ensure the platform's capabilities are effectively leveraged.

Join Our Team at Hayden AIAt Hayden AI, we are dedicated to revolutionizing public transit and government operations through innovative computer vision technologies. Our mission is to tackle real-world challenges faced by transit systems, enabling them to enhance safety, optimize transportation, and contribute to a sustainable future.We develop advanced mobile perception systems designed to improve transit flow and street safety. As a part of our dynamic team, you will work at the forefront of technology, utilizing AWS and GCP cloud services while developing cutting-edge Linux-based edge devices.Role OverviewWe seek an enthusiastic Senior Software Engineer to enhance our data platform, ensuring it is reliable, scalable, and high-performing. In this role, you will design and construct core data infrastructure, optimize data pipelines, uphold data quality standards, and collaborate closely with product and data science teams to deliver transformative data solutions that drive business insights.

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

Join the Fluidstack TeamAt Fluidstack, we’re pioneering the infrastructure for advanced intelligence. We collaborate with leading AI laboratories, governmental entities, and major corporations—including Mistral, Poolside, and Meta—to deliver computing solutions at unprecedented speeds.Our mission is to transform the vision of Artificial General Intelligence (AGI) into a reality. Driven by our purpose, our dedicated team is committed to building state-of-the-art infrastructure that prioritizes our customers' success. If you share our passion for excellence and are eager to contribute to the future of intelligence, we invite you to be part of our journey.Role OverviewThe Inference Platform team at Fluidstack is at the forefront of addressing the cost and latency challenges associated with frontier AI. You will play a crucial role in managing the serving layer that connects our global accelerator supply with the production workloads of our clients, which include LLM serving frameworks, KV cache infrastructure, and Kubernetes orchestration across multiple data centers.This hands-on individual contributor role combines elements of distributed systems, model optimization, and serving infrastructure. You will oversee the entire lifecycle of inference deployments for leading AI labs, striving for enhancements in throughput, cost-efficiency, and response times, while also influencing the architectural decisions that guide Fluidstack’s deployment strategies.

About Simple AIAt Simple AI, we are pioneering cutting-edge voice AI solutions tailored for enterprises. Our lifelike voice agents empower renowned companies such as DoorDash, xAI, and Omaha Steaks in managing diverse phone operations ranging from customer support to order intake and lead qualification. As we experience rapid revenue growth, we seek a couple of founding software engineers to help us meet current customer demands while developing innovative systems for the future. Our team is passionate about harnessing AI to transform the world, and we operate from our San Francisco office five days a week.Simple AI is proudly supported by top-tier investors and industry leaders, including Y Combinator, Massive Tech Ventures, and prominent figures like Michael Seibel (co-founder of Twitch), Jared Friedman (Scribd), Alexandr Wang (Scale AI), Matt Van Horn (June Oven and Lyft), Suhail Doshi (Mixpanel), JJ Fliegelman (WayUp), and Scott Wu (Cognition).Meet the FoundersThe founders, Catheryn Li and Zach Kamran, previously led software teams at Y Combinator, where they launched numerous products for YC founders, including the co-founder matching site. Cat brings experience from Instagram and Facebook and holds degrees in mathematics and computer science from MIT. Zach studied computer science and statistics at the University of Chicago and led software initiatives at PEAK6.What We ProvideCompetitive salary with significant equity opportunitiesEmployee-friendly equity termsOffice located in San FranciscoComprehensive health, dental, and vision insuranceComplimentary lunch and dinner at the officeFree Uber rides home after 8:30 PMRegular team events and offsite activitiesYour Qualifications4+ years of relevant software engineering experience.Exceptional problem-solving skills and a passion for tackling technical challenges.A customer-centric mindset coupled with strong communication skills and a keen interest in product design and prioritization.Self-motivated with the ability to work independently.A genuine enthusiasm for continual learning and keeping abreast of the latest advancements in AI.

Join Our Innovative TeamAt marble.ai, we are revolutionizing the tax preparation landscape through our cutting-edge AI-powered assistant and platform. We aim to alleviate the challenges faced by mid-to-large accounting firms during tax season by providing intelligent solutions that simplify complex workflows. As a startup in the early stages of development, we foster a highly collaborative environment dedicated to addressing impactful issues for our clients.Your Role in Our MissionWe are seeking a passionate Software Engineer to contribute to the core functionality of our AI-driven tax platform. As one of our early hires, you will have a significant impact on shaping the architecture and features of our groundbreaking product. This is an exciting opportunity to work in a fast-paced startup atmosphere where your contributions will help redefine the tax preparation experience.If you are motivated by dynamic work environments and are eager to utilize AI tools for real-world solutions, we would love to hear from you.Key ResponsibilitiesLead the development of our AI-first tax preparation platform.Enhance core user experiences across our applications.Collaborate closely with the founding team to define and execute our product roadmap.Implement AI-driven tax data throughout the platform.Engage with the entire product lifecycle and technology stack.Desired QualificationsProven experience in building and scaling user-facing web applications.Familiarity with various web frameworks (both frontend and backend).Strong product intuition and meticulous attention to detail.A genuine passion for solving customer challenges and delivering exceptional value.Preferred QualificationsExperience with AI products and tools.Knowledge of ETL pipelines or managing large-scale data.Background in fast-paced startup environments with product-led growth.Familiarity with the tax, accounting, or fintech sectors.Our Technology StackFrontend: React, Remix (React Router)Backend: Node.js, ExpressDatabase: MongoDB, PostgreSQL

Join the Revolution at HarveyAt Harvey, we're not just changing the game for legal and professional services; we're redefining it from the ground up. By harnessing cutting-edge agentic AI, a robust enterprise platform, and unparalleled domain expertise, we're transforming the way essential knowledge work is performed for generations to come.This is an extraordinary opportunity to contribute to the foundation of a groundbreaking company at a pivotal moment. With a client base exceeding 1,000 across over 58 countries, a strong product-market fit, and exceptional investor backing, we're rapidly scaling and creating a new genre in real-time. The challenges are ambitious, the expectations are high, and the potential for growth — personally, professionally, and financially — is unparalleled.Our team is composed of sharp, driven individuals who are passionately committed to our mission. We operate with agility, intensity, and take genuine ownership of the challenges we face — from initial concept to long-term impact. We maintain close relationships with our customers, spanning from leadership to engineering teams, working collaboratively to address real issues with urgency and care. If you excel in uncertain environments, strive for excellence, and wish to help craft the future of work alongside like-minded individuals, we welcome you to join us in building something remarkable.At Harvey, the future of professional services is being crafted today — and we’re only at the beginning.Role OverviewAs a Senior Staff Software Engineer on our Product Security team, you will play a vital role in integrating security into our AI platform from the outset. Given that we handle and process our clients’ most sensitive information, prioritizing security is essential throughout our product lifecycle. You will take the lead in safeguarding crucial aspects of our product while spearheading high-impact security initiatives that elevate our entire engineering organization — balancing hands-on technical contributions with cross-functional leadership and mentorship. You’ll be responsible for designing and implementing both technical safeguards and security features within the Harvey platform.Our security program thrives on our collective offensive security experience: penetrating systems at other organizations (in white-hat capacities), responding to real security incidents, and drawing lessons from data breaches elsewhere. We routinely conduct penetration tests and red team exercises with external security experts. Simultaneously, we are all software engineers who contribute code daily, approaching security with an engineering-first mindset.What You’ll DoEstablish and enhance the security posture across the engineering organization, setting scalable standards.Collaborate with Product Engineering, Infrastructure, and other teams to integrate security into every facet of our development process.

Join Our Innovative Team at Simple AIAt Simple AI, we are transforming enterprise communications through cutting-edge voice AI agents. Our highly realistic agents empower leading companies such as DoorDash, xAI, and Omaha Steaks to efficiently manage a variety of phone operations, including customer support, order processing, and lead qualification.As we experience exponential growth and a surge in customer demand, we are seeking a few founding software engineers to help us navigate this exciting journey and develop systems for the future. Our passionate team operates from our vibrant San Francisco office five days a week, driven by a shared vision of leveraging AI to make a significant impact in the world.We are proud to be backed by esteemed investors and operators, including Y Combinator, Massive Tech Ventures, and industry leaders such as Michael Seibel (Twitch), Jared Friedman (Scribd), and more.

About AlphaSense: AlphaSense is the go-to platform for the world's most advanced companies, helping them eliminate uncertainty in decision-making through unparalleled market intelligence and AI-driven search capabilities. Our trusted insights derive from a vast universe of both public and private content, including equity research, company filings, event transcripts, expert calls, news, trade journals, and proprietary client research.With the recent acquisition of Tegus in 2024, AlphaSense is poised to further enhance our mission of empowering professionals to make informed decisions using AI-enhanced market intelligence. This collaboration will drive growth, innovation, and content expansion, providing users with deeper insights across an extensive array of content sets. We proudly serve over 6,000 enterprise customers, including most of the S&P 500. Founded in 2011 and headquartered in New York City, we have grown to over 2,000 employees with offices in the U.S., U.K., Finland, India, Singapore, Canada, and Ireland. Join us!About the Team:Our diverse Product & Engineering team is committed to fostering innovation, collaboration, and ongoing improvement of our platform. We provide a dynamic work environment that encourages growth and allows employees to work with cutting-edge technology shaping the future of AI and search.At AlphaSense, we celebrate diverse experiences and perspectives, ensuring our workplace is inclusive and empowering for all employees to express their authentic selves.About the RoleWe are in search of a seasoned engineering leader to revolutionize the development and operation of AI-powered systems on a large scale. You will be part of a talented team of engineers who have created leading-edge AI applications. Your objective will be to implement world-class engineering practices that ensure the reliability of these innovations for our enterprise clientele.This role presents a unique opportunity for an experienced engineer who excels in building robust platforms, mentoring talented teams, and establishing engineering excellence. You will enjoy significant autonomy in shaping our technical architecture while working with cutting-edge AI models and agentic systems that empower market intelligence for some of the world's leading organizations.

Why Join Flux?At Flux, we are simplifying the complexities of hardware development by pioneering the world’s first AI Hardware Engineer. Our mission is to democratize access to cutting-edge hardware technology and transform the global landscape of electronics design and manufacturing.About the PositionAs a Platform Engineer at Flux, you will play a crucial role in ensuring that our platform operates seamlessly. Your work will extend beyond the editor, encompassing essential features such as billing, authentication, onboarding, and integrations.You will be responsible for delivering features that enhance user experience, maintaining operational integrity, and facilitating the scalability of Flux’s platform.Key ResponsibilitiesDevelop and sustain user-centric platform functionalities (billing, authentication, onboarding, settings).Integrate and sustain third-party APIs (e.g., Stripe, Firebase, analytics).Create backend services using TypeScript/Node and frontend components with React.Enhance the reliability and performance of core platform functionalities.Implement standards for observability, logging, and error tracking.Collaborate with cross-functional teams to design APIs that support new products and integrations.Document architecture and best practices pertinent to your domain.Required QualificationsMinimum of 5 years of professional software engineering experience.Proficiency in TypeScript, Node.js, and React is essential.Experience in integrating and maintaining third-party APIs is required.Demonstrated success in deploying full-stack web applications.Familiarity with cloud hosting environments (GCP/AWS/Firebase) and basic CI/CD practices.Strong debugging and cross-system troubleshooting capabilities.Excellent communication skills, both written and verbal; ability to thrive in asynchronous, remote team settings.Preferred QualificationsExperience with multi-tenant SaaS applications or collaborative web platforms.Familiarity with authentication frameworks (OAuth, JWT, Firebase Auth).Experience with observability tools (Sentry, Datadog, Grafana).Background in developing internal tools or administrative dashboards.

Join Trunkio, where our mission is to enable teams to develop high-quality software swiftly. We have collaborated with engineering teams at top-tier companies like Google X, Zillow, and Brex to identify build failures, manage flaky tests, and enhance code deployment speed without compromising reliability. Although AI has accelerated code writing, the delivery process remains a challenge due to merge conflicts, inconsistent code quality, and other productivity-draining issues. Our goal is to help engineering teams focus on the design, implementation, and delivery of exceptional software, resulting in more fulfilling work experiences. We are currently developing a CI Reliability Platform that empowers teams to deliver code efficiently.Founded in 2021 by industry veterans from Uber, Google, YouTube, and Microsoft, Trunkio has successfully raised a $25M Series A led by Initialized Capital and a16z, with backing from notable investors including Haystack Ventures and the creators of GitHub, Apollo GraphQL, and Algolia.We are seeking a passionate and skilled Senior Software Engineer to join our Platform/Data Engineering team. In this pivotal role, you will design and optimize data ingestion pipelines to manage large volumes of real-time and batch data from diverse sources. Your expertise will be vital in creating systems that are scalable, reliable, and performant, while also ensuring seamless data integration across our ecosystem.