Senior AI/ML Engineer at Sigma Computing | San Francisco

About Pax HistoriaPax Historia is pioneering a new genre of gameplay by leveraging cutting-edge generative AI technologies. Our innovative platform combines the strategic depth of grand strategy games with the limitless creativity of a sandbox environment, driven by a vibrant community that actively creates and modifies scenarios.Our user base generates hundreds of scenarios daily and engages in millions of game rounds each week, exhibiting rapid growth. We are proud to be supported by esteemed investors such as Y Combinator, Pace Capital, and Z Fellows. Your contributions will have an immediate impact on a product enjoyed by hundreds of thousands of players.Position OverviewWe are seeking a founding-level ML Systems Engineer to join our team in-person full-time in San Francisco (Dogpatch). You will have the opportunity to work closely with our cofounders to shape the future of our technology.Current Challenges:Closed-source models yield satisfactory game performance but come with high costs.Open-source models are more budget-friendly yet often underperform in our environment.Prompts and harnesses exhibit minimal variance across models.We have a functional internal evaluation system with significant opportunities for enhancement.Your Responsibilities:Establish and manage the necessary infrastructure for customizing harnesses and prompts tailored to individual AI models to optimize their performance.Develop domain-specific models aimed at narrowing or completely bridging the gap in performance between open and closed models.Optimize caching strategies to decrease expenses associated with closed-source models.Enhance the performance of closed-source models by training specialized endpoints.Assess and advance the effectiveness of embedding and reranking mechanisms in our applications.Facilitate the creation of new user experiences based on emerging world models.In Summary: Your work will directly enhance the affordability and enjoyment of the game.

Role OverviewLocation: San Francisco, CA Work Model: In-officeAbout Effective AIAt Effective AI, we are pioneering the future of work, focusing on sophisticated AI solutions for complex knowledge tasks rather than simple, repetitive functions. Our goal is to develop advanced AI Teammates that excel in intricate workflows and collaborate seamlessly with human professionals. Our initial challenge is to revolutionize the trillion-dollar U.S. Property & Casualty insurance sector, an area rich in data and complexity, ideal for our innovative approach.We have successfully secured $10 million in seed funding from prominent investors including Lightspeed Ventures and Valor Equity Partners.Our passionate team operates out of San Francisco, where we value in-person collaboration to address these pressing challenges.Your ResponsibilitiesAs a Founding Software Engineer, you will be an integral member of our founding team, significantly influencing the design and development of our core product from inception. You will confront critical challenges in agentic AI, crafting Teammates capable of managing essential insurance functions such as underwriting and claims processing.Specifically, you will:Facilitate long-term task completion by creating the foundational architecture for AI agents to plan and execute multi-step processes reliably over prolonged interactions.Develop advanced reasoning functionalities, enabling agents to make informed decisions based on ambiguous or incomplete information, akin to human experts.Create intelligent, tool-utilizing agents capable of selecting and employing a variety of external tools—APIs, databases, web searches, and Excel-based pricing algorithms—to gather information and take decisive actions.Design adaptive and learning systems, equipping our AI Teammates to learn from feedback and adjust to evolving conditions such as regulatory changes or market dynamics.Your ProfileWe seek an innovative and driven builder excited to tackle substantial challenges.You possess a solid foundation in computer science and remarkable problem-solving capabilities, evidenced by impactful projects or previous experience.Your genuine enthusiasm for AI fuels your passion for tackling complex issues.

Founding Engineer (Unity Mobile)Pax Historia is revolutionizing gameplay by leveraging cutting-edge generative AI technology. Our innovative platform seamlessly combines the intricacies of grand strategy with the limitless creativity of a sandbox environment, all while being energized by a dedicated community that actively creates and remixes scenarios.Our community is vibrant, publishing hundreds of scenarios daily and engaging in millions of gameplay sessions each week, with rapid growth on the horizon. Supported by prominent investors such as Y Combinator, Pace Capital, and Z Fellows, your contributions will directly impact a product enjoyed by hundreds of thousands of players.The RoleWe are seeking a founding-level Unity developer to spearhead the development of our native mobile application. This role requires full-time, in-person work in our San Francisco office located in Dogpatch, where you will collaborate closely with the co-founders.Current Position Overview:A web-based game with significant product-market fit, particularly within the alternate-history genre.Hundreds of thousands of users are eagerly anticipating a native mobile experience.A well-documented TypeScript codebase with clear data models and API patterns for integration.No existing Unity codebase; you will be architecting the system from the ground up.Your Key Responsibilities:Developing the core gameplay loop for iOS and Android, including features such as an interactive map, action submissions, event viewing, and AI-driven chat.Creating a high-performance 2D map rendering system capable of displaying thousands of regions with smooth panning, zooming, and animated territorial changes.Building a consistent UI component library that aligns with our web design system (custom components, Poppins typography, dark/light modes).Integrating with our Firebase/Supabase backend and AI services through REST APIs.Implementing push notifications and deep linking to enhance user engagement.Optimizing the application for lower-end mobile devices and memory-constrained environments.In summary, your contributions will propel Pax Historia into the mobile realm and unlock our next phase of growth.

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.

ABOUT PAX LABSAt PAX, our mission is to elevate consumer experiences through innovative products that honor the plant. For nearly 20 years, we have crafted high-performance devices designed with precision, purity, and reliability, trusted by millions globally.Our company culture prioritizes our people, collaboration, and enjoyment in the workplace. We believe that exceptional products and a fulfilling employee experience are intrinsically linked. PAX has received accolades from leading publications including The New York Times’ Wirecutter, TIME, Fast Company, GQ, and High Times, highlighting our commitment to quality and innovation. We are proud to be certified Plastic Negative by rePurpose Global, ensuring that we remove twice as much plastic from nature as we use in our products.ROLE OVERVIEWAs a Mechanical Engineer reporting to the Director of Mechanical Engineering, you will play a pivotal role in designing innovative components and subassemblies for our new products that are not only cost-effective but also reliable and timely. Your expertise will also extend to troubleshooting and enhancing existing products, collaborating with fellow engineers to devise solutions for complex structural, thermal, illumination, and usability challenges. Proficiency in sketching, prototyping, and familiarity with mechanical engineering principles, product development best practices, and design documentation is essential.Our products are celebrated for their aesthetic appeal, durability, and innovative technology. As a Mechanical Engineer, you will be instrumental in shaping the architecture and design of all our products, working closely with the Hardware team to realize our product vision. This role is fundamental to the future development of PAX products.KEY RESPONSIBILITIES:Engage in the design and development of mechanical product architectures, including assemblies, modules, parts, and accessories.Participate actively in decision-making processes pertaining to mechanical product design and architecture.Conduct structural, tolerance, thermal, and fluid analyses to inform design decisions.Generate detailed 3D and 2D drawings, including specifications that clearly define components and subassemblies.Collaborate with industrial designers to evaluate product details for manufacturability and propose improvements.

About Pax HistoriaPax Historia is an innovative alternate-history sandbox game that allows players to select a country and a pivotal moment in time, enabling them to rewrite history. Imagine a world where Rome never fell, the Soviet Union thrived, or Genghis Khan reigned longer.Supported by Y Combinator, Pace Capital, and Z Fellows, our game has amassed nearly 20 million rounds played and is experiencing rapid growth. Your contributions will impact a product enjoyed by hundreds of thousands of players.Our CultureMany of our players discover Pax Historia through word-of-mouth, YouTube reviews, and other organic channels, and they return because of our commitment to building an exceptional game. We want every team member to share this passion. History enthusiasts are particularly welcome, but we encourage anyone who can articulate their excitement about our game to apply.As a small company, you will collaborate closely with the cofounders and a select group of employees. We seek self-motivated individuals who are team players and ready to champion their ideas. The leadership style here values autonomy, allowing you to thrive without micromanagement.Flexibility is crucial in our fast-paced environment. As we scale, be prepared to address various challenges that arise.Your RoleWe are looking for a full-time web developer to join us on-site in San Francisco (Dogpatch). You will report directly to the cofounders. This role is intensive, with an expected commitment of 50-60 hours per week initially, transitioning to potentially fewer hours as you settle in. While we prefer candidates who can commit to in-person work, there may be slight flexibility for hybrid arrangements (e.g., 1 day per week remote). Your schedule will have some flexibility.As a web developer, you will play a key role in enhancing the customer experience on paxhistoria.co.Given our small team size, you will also be expected to assist with various ad-hoc projects as they arise. This is a dynamic, evolving role!

Founding Engineer – Baton AILocation: San Francisco, CA (In-Person)Experience Level: 3+ years (Full-Stack Engineering)About Baton AIBaton AI (getbaton.ai) is revolutionizing enterprise automation with a cutting-edge platform designed for seamless cross-application workflows. Our mission is to empower solutions engineering and implementation teams by automating customer onboarding and product setup, allowing them to deliver value at a faster pace and scale. This is just the beginning of our expansive vision for enterprise-wide, AI-driven automation.As a rapidly growing, VC-backed startup, we are seeking visionary builders who are eager to innovate, take initiative, and play a key role in shaping the future of AI automation.Your ResponsibilitiesLead Development of Core Systems – Architect and develop essential components of our full-stack web application, API infrastructure, and AI-enabled automation platform.Tackle Advanced Technical Challenges – Engage in complex tasks involving AI agents, prompt engineering, evaluation, monitoring, API integration, and browser automation.Influence Product Direction – Work closely with early adopters and the founding team to shape our technical roadmap and implement impactful features.Embrace Rapid Learning and Prototyping – Innovate, experiment, and deliver solutions swiftly in a high-trust, streamlined environment.Our Ideal Candidate3+ Years in Full-Stack Engineering – Strong proficiency in React and Typescript.Expertise in Modern Web Development – Familiarity with React/NextJS and Node.js. Knowledge of Python and Elixir/functional programming is advantageous.Experience with Rich-Text Editors – Previous work on features similar to those found in Notion or be eager to tackle this challenge.Interest in AI and Workflow Automation – A passion for developing AI/LLM-driven applications and automation tools.Product-Oriented Mindset – A commitment to clean code and exceptional user experience.Strong Problem-Solving Skills – Ability to navigate ambiguity and deliver results efficiently.Willingness to Work On-Site – Enthusiastic about collaborating in person in San Francisco.

Join Shiplight AI as a Founding Engineer, AIAre you ready to be at the forefront of the AI revolution and make a significant impact?Do you believe in enhancing productivity exponentially through innovative solutions?At Shiplight AI, we are on a mission to redefine enterprise-scale automation through intelligent agents. We envision a future where organizations leverage AI systems capable of understanding context, taking meaningful actions, and seamlessly collaborating with humans — transforming workplace dynamics.Our initial goal is to revolutionize software quality assurance. We are developing cutting-edge agentic QA systems that integrate deeply within the software development lifecycle, empowering every product manager, developer, and tester with their own AI QA engineer for real-time validation of their work.You will be part of a small, dedicated founding team led by industry experts, focusing on the intersection of AI agents, systems engineering, and enhancing real-world developer productivity.

Draup, based in San Francisco, is an AI company with Series A funding that builds intelligence solutions for large enterprises. The platform analyzes over 1 billion job descriptions and 850 million professional profiles, serving more than 250 enterprise clients, including several Fortune 10 companies. Draup’s data comes from more than 100 labor databases, supporting clients with deep workforce insights. Role overview The engineering team in Silicon Valley is expanding. Draup seeks experienced AI/ML Engineers interested in advancing both research and product development in artificial intelligence. What you will do Develop and maintain production-grade large language model (LLM) pipelines and agentic workflows. Design and enhance retrieval-augmented generation (RAG) architectures at scale, using vector databases such as Pinecone, FAISS, and Weaviate. Implement advanced agentic systems with tools like LangGraph or LlamaIndex, focusing on tool use, multi-agent coordination, and reasoning loops. Lead prompt engineering, manage model versioning, oversee evaluation (including RAGAS and DeepEval), and instrument LLMOps. Integrate AI features into large-scale data pipelines, ensuring observability in production and compliance with guardrails. Location This position is based in San Francisco, CA (Silicon Valley).

Kiloforge operates as a company factory in San Francisco, using AI to generate, validate, build, and distribute software products for niche communities. The team’s goal is to address overlooked challenges with tailored applications and eventually manage thousands of products, each designed for specific needs. Role overview This founding engineer position centers on building and shipping micro applications at a rapid pace. The work involves developing software for real users, automating processes, and adapting quickly as priorities shift. The environment values experimentation and learning across disciplines. What you will do Develop and release micro applications each week for actual users Continuously improve and automate development workflows Who we're looking for Generalists with broad skills, ideally extending beyond engineering Experience building products that have reached real customers Resourceful and adaptable, able to respond to new challenges Strong instincts for product and design Comfortable with shifting priorities and ambiguity Curious and motivated to learn across different fields Background in founding a company or strong interest in entrepreneurship The team Founders with experience building companies, including one that reached $20M ARR Track record of launching products with thousands of active users Driven to make a meaningful impact Small, agile group of founders and builders Supported by investors such as a16z, Uncork Capital, Y Combinator partners, and Rahul Vohra Why join Kiloforge Collaborate with designers, creatives, and marketers to integrate their expertise into AI-driven workflows Ideal for those ready to take risks and help reshape how software is built and shipped Hands-on experience building and distributing products in an AI-first setting

Summary: Join Interface as a Founding Engineer! We seek versatile engineers (ML, data, full-stack) who are driven, innovative, and eager to make a difference. If you're ready to challenge the status quo and build impactful solutions, we want you on our team! Your Profile:Make swift, informed decisions with a focus on outcomesProactively address issues before they escalateFluent in our technology stack (TypeScript, Python, Docker, LLMs, YOLO, Tesseract, PostgreSQL, AWS, React Native, etc.)Have a proven track record of building functional productsThrive in fast-paced environmentsYour Responsibilities:Engage with users/customers to understand their experiences, challenges, and requirementsDesign robust systems utilized by thousands at billion-dollar enterprisesDevelop autonomous data pipelines for auditing large volumes of documentsEnsure scalable infrastructure managementDeliver quickly – our mantra is progress over perfection.Important Insights:Collaborate directly with the founding team and customersUser needs take precedence over flashy featuresThe team works six days a week in our San Francisco officeEnjoy working in SF: vibrant atmosphere, pleasant weather, and access to the best tech ecosystem in the world Additional Information:We welcome applications from around the globe.We offer competitive compensation, substantial equity, and the chance to influence our early team dynamics.$3,000 referral bonus for successful hires.About Interface: We are pioneers in autonomous safety solutions for the industrial sector, focusing on error detection and correction in industrial documentation. Our AI-powered platform aims to automate compliance tasks across various domains. You will leverage cutting-edge technologies at the crossroads of LLMs, computer vision, and data frameworks to redefine industry standards.

About HyperspellHyperspell is revolutionizing the Memory & Context Layer for AI Agents.AI agents are brilliant yet lack context.While AI agents excel in standardized testing, they struggle with real-world applications. Today's cutting-edge agents lack the contextual understanding that humans naturally acquire through diverse interactions. This context evolves with their tasks.Hyperspell empowers AI agents with contextual awareness by integrating with users' workspace data, creating a tailored memory and context layer.Our ValuesWe are committed to shaping the future through bold innovations. Our goal is to establish ourselves as the indispensable context layer for organizations, enabling all their AI agents to connect seamlessly. We embark on this journey not because it is easy, but because it is significant.We prioritize care — for our customers, their success, the future of AI, and most importantly, for one another. As we build the frontier of AI, we strive to be one of the most technologically advanced yet profoundly human companies in history — a place where we can enjoy shaping the future together.Our InvestorsOur vision is supported by esteemed investors such as Y Combinator, Afore Capital, Scribble Ventures, and Pioneer Fund. Our angel investors include leading figures from OpenAI, Anthropic, xAI, and DeepMind, alongside respected founders from Silicon Valley like Siqi Chen (Runway) and Julian Weisser (On Deck).Our FoundersFounded in 2024 by Conor Brennan-Burke and Manu Ebert, Hyperspell is driven by experienced leaders. Conor previously spearheaded growth at Checkr, overseeing a $30 million API product portfolio and earning the title of 'the most helpful founder in YC'.Manu brings over 15 years of expertise in machine learning and AI, having successfully sold two companies and led high-growth engineering teams at Airbnb. Interestingly, he acquired his first .ai domain in 2014, needing to send a fax to the domain authority in Anguilla to do so.About the RoleAs our founding platform engineer, your mission will be to construct the infrastructure that makes Hyperspell feel magical — swift, dependable, and effortlessly scalable. You will be responsible for the foundation upon which our entire product is built, ensuring that when customers entrust us with their data, we uphold their trust.

Join Our TeamFinal Round AI, located in the vibrant heart of San Francisco, California, is at the forefront of transforming the job interview landscape through innovative technology. Our platform delivers real-time interview coaching, realistic mock interview simulations based on leading company standards, and essential tools designed to craft an impressive, hireable resume. We strive to empower candidates to distinguish themselves, cultivate confidence, and achieve their career aspirations.Supported by some of the most prestigious venture capital firms in Silicon Valley, Final Round AI is experiencing rapid growth. Our dynamic team is expanding, and we’re in search of dedicated, visionary individuals who thrive in fast-paced environments. Having already assisted over one million candidates from more than 100 countries in landing their dream jobs, Final Round AI is truly redefining career paths.

Founding EngineerJoin Terac: The Premier Expert Network Driving Frontier ResearchLocation: San Francisco (in-person required) | Stage: Seed ($9M raised)At Terac, we are captivated by the vision of a future where agent-driven companies operate without traditional employees, yet still rely on human intelligence. As we stand on the brink of a new era where AI will handle most tasks with human oversight, Terac is poised to be the labor marketplace that fuels this post-AGI landscape.We are currently an expert network that supports cutting-edge research by constructing the foundational layer that facilitates on-demand human labor. Our partners integrate with us through API access to a diverse pool of research-grade experts. We manage sourcing, verification, screening, and payments, allowing our partners to concentrate on product development.Historically, jobs have transitioned from lifelong commitments to short-term engagements. From the stone age to the industrial era, and now platforms like Uber, the trend toward AI-driven labor marketplaces is undeniable and will only escalate in demand.Having successfully secured $9M in funding from notable investors including Emergence, SignalFire, Audacious, and Z Fellows, we are seeking innovative engineers with a founder's mindset to take ownership of critical components of our platform as we expand from research tools into the larger human data economy.Your Responsibilities:Lead and enhance the recruitment engine, utilizing targeted advertisements, referrals, automated outreach, and creative solutions to identify niche audiences.Develop and refine the Terac API for integration by research tooling and AI data companies.Implement the AI moderator, our voice agent designed to screen candidates, assess long-term tasks, detect fraudulent behavior, and facilitate multilingual conversations.Create marketplace systems that encompass opportunity routing, pricing optimization, expert lifetime value modeling, and feasibility analysis.Design the expert network experience, focusing on onboarding processes, opportunity matching, payout systems, and trust frameworks to retain experts.Collaborate closely with the CTO to influence technical strategies utilizing technologies such as Next.js, TypeScript, tRPC, Drizzle, Neon Postgres, LiveKit, and the Vercel AI SDK.Your Profile:A proactive builder with 3+ years of experience in software engineering, preferably in startup environments.

Location: San Francisco, CAType: Full-time, on-siteOverview: As the digital landscape evolves, we at AgentMail are at the forefront of a revolution that empowers AI agents with their own identities and communication tools. Our mission is to create solutions in an uncharted territory, where the challenge is to build something that truly resonates with agents as the new citizens of the internet. If you thrive in innovative environments and enjoy taking projects from inception to execution, we want to hear from you.About AgentMail: We are pioneering an API that transforms traditional email into a robust communication platform for AI agents. This is not merely AI applied to email; it's a groundbreaking approach to integrate email functionality directly into AI.We are seeking a founding engineer with a strong foundation in backend systems and infrastructure to develop the fundamental tools that agents will rely on for communication, authentication, and real-world operation. This position is ideal for someone passionate about systems engineering: from APIs and distributed infrastructure to reliability and developer tools.Why Join Us?Exceptional Team: Our founding team consists of industry experts with backgrounds in quantitative analysis, software engineering, and private equity, featuring talent from renowned organizations like Optiver, NVIDIA, Amazon, Modern Treasury, and KKR.Explosive Growth: Since January, we have doubled our user base every two weeks and anticipate continued rapid expansion as the demand for AI agents skyrockets.Unique Market Position: We are the only provider of identity solutions for AI agents, akin to how Gmail serves human users.Your Role:Design APIs and abstractions that are user-friendly for both humans and AI agents.Develop high-performance, low-latency systems with a focus on agent user experience.Engage directly with our core infrastructure, which processes hundreds of thousands of emails daily.Innovate by merging cutting-edge AI capabilities with traditional email solutions.Take ownership of projects from design through to production deployment.Produce clear, maintainable code accompanied by thorough technical documentation.Act as a liaison for customer feedback, representing their needs within our team.Qualifications:We are looking for candidates with a strong backend development background, ideally with experience in API design, distributed systems, and software reliability.

Join Us as a Founding Engineer!At Brainbase, we're redefining the workforce landscape with AI Employees, akin to how Retool transformed internal tools.Imagine a world where AI collaborates seamlessly with human teams. Brainbase empowers businesses to develop their own AI workforce.In just one year, we've achieved $XM+ ARR and are on course to surpass $XXM+ soon. Our clientele spans from small and medium businesses to Fortune 50 corporations. We're proudly supported by Y Combinator, 500 Global, and other prestigious investors, including founders from YouTube and HubSpot, as well as notable YC alumni.About the RoleAs a pivotal member of our founding team, you'll play a crucial role in integrating AI into the enterprise landscape: launching innovative features, engaging with users, and fostering a vibrant company culture for future team members.You will collaborate closely with our CEO and founding team, focusing on enhancing our infrastructure (both cloud and on-premise) and refining our proprietary agent system based on user feedback.Who Should Apply?This position may be a perfect fit for you if:Resourceful: You excel in maximizing outcomes with limited resources, whether that be time, finances, or computing power.Resilient: You persist through challenges and only step back when you discover a more effective approach.Decisive: You make sound decisions under pressure, even with incomplete information, and swiftly move on to new challenges.Passionate about Problem-Solving: You thrive on tackling complex puzzles, games, or challenges, regardless of initial proficiency.Fun-Loving: You maintain positivity and uplift those around you, even during tough times.Key RequirementsAlongside the qualities outlined above, we seek candidates with the following qualifications: Essential SkillsLocation: Based in San Francisco or open to relocation.Work Authorization: Must have a valid US work permit (we do not sponsor H1-Bs; OPTs are acceptable).Minimum of 2 years of software engineering experience (recent graduates are encouraged to apply; personal projects are valued).Proficiency in Typescript and Python.Familiarity with Large Language Models (LLMs) such as OpenAI API, Langchain, or HuggingFace.

Overview:At Alleviate Health, we are pioneering the development of AI agents designed to significantly streamline clinical trials by autonomously engaging with patients for recruitment and ongoing support. Our mission is to resolve a critical issue that haunts executives at the world’s largest pharmaceutical companies, valued at over $100 billion.Having successfully bootstrapped our operations, we've secured major enterprise accounts and are experiencing substantial market demand. Following a successful $4.3 million seed funding round led by a16z, we are assembling a top-tier team to tackle one of the most pressing challenges in drug development while drastically reducing the timeline for delivering life-saving medications to those in need.Context:The process of conducting clinical trials is complex, fraught with challenges, and carries significant financial stakes. Pharmaceutical companies allocate tens of billions annually to ensure they can qualify and screen vast numbers of patients while maintaining contact over extended periods. Remarkably, around 80% of clinical trials are delayed due to recruitment issues, costing between $600,000 and $8 million for each day a trial is postponed.This labor-intensive challenge of patient screening, recruitment, and retention across numerous research sites is a fundamental bottleneck in clinical trials.About Alleviate:At Alleviate, we have developed state-of-the-art AI agents that autonomously manage patient recruitment and retention for clinical trials. Our agents conduct over 100,000 conversations monthly by:Intelligently screening and routing patients to appropriate trials.Collecting essential trial data from patients multiple times a week.Providing accurate answers to patient inquiries.

Join Our Team as an Applied AI/ML Engineer!Are you an innovative AI/ML Engineer with 5 to 8 years of experience in developing and managing production AI and ML systems that impact real users? At paraform, we seek a talented individual who thrives in creating modern LLM agentic systems and traditional ML frameworks. You should have a proven track record of delivering systems with measurable quality metrics and a tangible business impact, alongside a strong grasp of evaluation methodologies that prioritize product goals. Familiarity with large-scale retrieval, ranking, NLP, or personalization systems is highly desirable.Your ResponsibilitiesDesign and implement cutting-edge AI/ML systems that enhance matchmaking, ranking, and automation within the Paraform marketplace.Oversee the complete model development lifecycle, from data collection and labeling strategies through to deployment, monitoring, and iterative improvements in production.Collaborate closely with product managers, AI engineers, and full-stack teams to deliver systems that significantly affect marketplace metrics.Establish and sustain robust evaluation frameworks to continuously assess quality, bias, reliability, and business impact.Set the technical direction and establish best practices for AI/ML at Paraform.Mentor fellow engineers, elevating the standards of design, deployment, and maintenance of AI systems.About paraform:Paraform is revolutionizing the hiring market—one of the largest and most fragmented industries globally. We collaborate with renowned industry leaders such as Cursor, Palantir, Windsurf, Decagon, Shopify, Coinbase, and Hightouch to attract world-class talent. Our rapid growth, exemplified by an 8x increase in revenue last year, underscores our success.As the first all-in-one AI recruiting marketplace, Paraform connects companies with thousands of specialized recruiters and AI agents to streamline the hiring process, making it faster and more precise.Our mission is to enhance hiring efficiency, reliability, and scalability for every organization worldwide.At paraform, we believe the best recruiting occurs when the right talent addresses the right challenges, blending human insight with AI that comprehends hiring intricacies. Hence, we are laying a new foundation for recruitment that unites specialized recruiters with advanced AI tools.

About AbacusAt Abacus, we are revolutionizing the operations of accounting firms through innovative AI agents that automate the monotonous and repetitive tasks currently faced by teams. Our cutting-edge core engine integrates advanced Optical Character Recognition (OCR) and Large Language Models (LLMs) to provide genuinely intelligent back-office automation solutions. We have already established partnerships with significant enterprise clients, generating substantial revenue, and are proudly supported by leading investors. Having achieved this milestone as a compact team of two, we are eager to expand our workforce. If you are passionate about shaping the future of AI-driven operations and are ready to take on impactful technical challenges from the outset, this is your opportunity.The RoleWe are seeking our inaugural Founding Engineer to take charge of and enhance the core machine learning engine that powers Abacus. Reporting directly to the co-founders, you will work on-site from our San Francisco office. This is a unique chance to join a rapidly growing company as an early engineer, endowed with significant autonomy and influence over both product and technical direction.In your first 3–6 months, you will:Enhance and scale our ML extraction engine utilizing LLMs and OCR technologies.Take ownership of backend architecture and infrastructure decisions.Develop and launch innovative features that broaden the scope of automated workflows.In the following year, you will play a pivotal role in establishing the foundation of our engineering organization as we scale, while remaining hands-on and focused on delivering impactful results.What You’ll DoLead the development of our machine learning-driven document extraction engine.Architect backend systems with an emphasis on performance and scalability.Create and deploy new automation features tailored for tax firms.Work closely with the founders to align on product and user requirements.Contribute to defining our engineering culture and establishing the technical roadmap.What We're Looking ForEssential Qualifications:1–5 years of experience, preferably in environments with high ownership or early-stage ventures.Proficient backend development skills, especially in Python.Demonstrated ability as a 0→1 builder, whether through side projects, startup experience, or both.Commitment to work from our SF office, five days a week.Willingness to complete a technical assessment as part of the application process.