Y Combinator jobs

Machine Learning Engineer 4 San Jose posted: Posted 30+ Days Ago

Sales Engineer San Francisco | Hybrid | Remote Company Overview Promise modernizes how government agencies and utilities support people in financial difficulty. We build technology that makes it simple for residents to receive benefits, engage with assistance programs, set up flexible payment plans, and stay on track-while helping agencies increase efficiency, recover revenue, and deliver services with dignity. Our mission is to transform public systems so they work better for everyone, especially the most vulnerable. Our team includes experts from companies like Palantir, Google, Stripe , and esteemed government leaders. We work hard and believe deeply in what we do. We're looking for excellent people to build innovative, resilient technology. Backed by over $50 million in funding from top investors - such as Reid Hoffman, Howard Schultz, Michael Seibel, Y Combinator, 8VC, The General Partnership, First Round Capital, Kapor Capital, XYZ Ventures, and Bronze Investments - Promise has been recognized as one of Fast Company's "World's Most Innovative Companies of 2022,” “Forbes Next Billion-Dollar Startups 2024,” and Y Combinator's #1 GovTech startup. ABOUT THE ROLE The Sales Engineer (SE) is a key player on Promise's sales team, acting as the product subject matter expert responsible for all technical aspects of the sales process. The Sales Engineer will technically qualify sales opportunities, perform assessments of customer requirements, anticipate and preemptively answer prospect's questions and objections, respond to technical RFPs, and communicate important prospect requirements to the product team. For qualified opportunities, SEs will be responsible for presenting overviews of Promise's solutions,

Machine Learning Engineer - II 2 Locations posted: Posted 30+ Days Ago

Founders Associate Intern Finto HQ, Munich | OnSite ABOUT FINTO Finto is on a mission to reinvent how enterprises run their finance operations. Starting with AI-powered automation for accounts payable, we eliminate manual invoice handling, supplier chasing, 3-Way-Matching and ERP data entry. Backed by Y Combinator, we're building the future of enterprise accounting. Our mission is to free the world's finance teams from repetitive, low-value tasks so they can focus on impactful work. That starts with building a place where everyone can do their best work. Whether you're building on our platform, partnering with our customers, or shaping our story: We just make things finance teams want. ABOUT THE ROLE We are looking for a Founders Associate Intern to work directly with our CEO and shape how Finto operates and grows. This is not a support role - you'll be in the room where decisions happen, own real projects, and move fast across GTM and operations. You'll get a front-row seat to enterprise sales and early-stage hiring, learning the fundamentals of both from day one. If you want to learn what it takes to build a company from the inside, this is it. We're headquartered in Munich, with roots in San Francisco through Y Combinator. WHAT YOU'LL DO - Work side-by-side with the CEO on daily business - from sales processes and deal support to marketing messaging and hiring. - Drive GTM initiatives: help prepare and follow sales conversations, sharpen our messaging, and support outreach to enterprise customers. - Own

Machine Learning Engineer San Jose posted: Posted 30+ Days Ago

SDE II - Frontend Gurugram About the Company: Netomi is the leading agentic AI platform for enterprise customer experience. We work with the largest global brands like Delta Airlines, MetLife, MGM, United, and others to enable agentic automation at scale across the entire customer journey. Our no-code platform delivers the fastest time to market, lowest total cost of ownership, and simple, scalable management of AI agents for any CX use case. Backed by WndrCo, Y Combinator, and Index Ventures, we help enterprises drive efficiency, lower costs, and deliver higher quality customer experiences. Want to be part of the AI revolution and transform how the world's largest global brands do business? Join us! Netomi is a Y-Combinator and VC-backed Artificial Intelligence company that sits at the intersection of two rapidly developing fields: AI and customer service. Our clients include Fortune 1,000 companies. Our artificial intelligence platform gives customer service teams the ability to activate, manage & train their AI to deliver an experience that delights consumers and turns customer service into a competitive advantage. We care about building a company that not only has the best technology and product on the market but also provides superior service to our customers. Job Description: We are looking for a skilled Frontend Engineer with strong expertise in modern JavaScript frameworks, hands-on experience in building scalable and responsive web applications, and a solid understanding of frontend architecture, performance optimization, and UI/UX best practices. Responsibilities Requirements

Senior Machine Learning Engineer San Jose posted: Posted 25 Days Ago

Solution Engineer Finto HQ, Munich | OnSite ABOUT FINTO Finto is on a mission to reinvent how enterprises run their finance operations. Starting with AI-powered automation for accounts payable, we eliminate manual invoice handling, supplier chasing, 3-Way-Matching and ERP data entry. Backed by Y Combinator, we're building the future of enterprise accounting. Our mission is to free the world's finance teams from repetitive, low-value tasks so they can focus on impactful work. That starts with building a place where everyone can do their best work. Whether you're building on our platform, partnering with our customers, or shaping our story: We just make things finance teams want. ABOUT THE ROLE We're looking for a founding Solution Engineer to join our founding team and lead the adoption of Finto's AI-powered automation for some of the world's largest enterprises. You'll be the trusted partner guiding finance teams through onboarding, integration, and - most importantly - putting AI directly into their hands so they can radically reduce manual work and unlock new levels of productivity. This is not a typical customer success role - its a technical, customer-facing role. You'll focus on the time to value including data-set-up, workflow design, and change management. You'll work closely with our founders to make sure customers embrace AI as a core part of their daily job. We're headquartered in Munich, with roots in San Francisco through Y Combinator. WHAT YOU'LL DO - Lead enterprise customers from contract signature through full-scale adoption, ensuring successful rollout and long-term expansion.

Machine Learning Engineer Toronto, Ontario posted: Posted 30+ Days Ago

AI Engineer Internship New York City | OnSite ABOUT SOLVA Solva is building AI for insurers to transform an $8 trillion industry, starting with claims. We're backed by $6m from First Round, Y Combinator, SV Angel and angel investors, including Paul Graham, that have funded companies such as OpenAI, Google, Stripe, Anthropic, Databricks and Github. We have an advisory board of experienced insurance executives and founders. Our team was previously part of building Europe's fastest growing InsurTech and founded a licensed EU bank processing payments of €1B/yr+. Now we are taking on one of the world's largest industries and rebuilding it from the ground up with AI. Solva is a Y Combinator S25 company and has emerged as one of the fastest growing and best-funded startups. ABOUT THE ROLE As an AI Engineering Intern you will work closely with the founders and contribute to the core AI systems that power Solva. You will learn by working on real problems across reasoning, evaluation, data and model behavior, and help us improve how claims decisions are made. The work is hands on and fast moving. You will experiment with models, build evaluation tools, refine agent workflows and work with challenging real world insurance data. This is a role for someone who is curious, enjoys solving technical problems and wants to work in a fast paced environment where ideas turn into product quickly. Internship is full time. Start period can be discussed. Successful internships can lead to full time roles. WHAT YOU'LL DO

Mathematics Specialist (Fluent in Spanish - Latin America) - Freelance AI Trainer Project Mexico Are you a mathematics expert fluent in Spanish (Latin America), eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of scientific discovery. With high‑quality training data, tomorrow's AI can democratize world‑class education, keep pace with cutting‑edge research, and streamline academic work for students and professionals everywhere. That training data begins with you-we need your expertise to help power the next generation of AI. We're looking for mathematics specialists who live and breathe algebra, calculus, number theory, linear algebra, differential equations, statistics, geometry, mathematical logic, and discrete mathematics. You'll challenge advanced language models on topics like real and complex analysis, optimization theory, mathematical proofs, set theory, probability distributions, cryptographic algorithms, and applied mathematics-documenting every failure mode so we can harden model reasoning. On a typical day, you will converse with the model on classroom problems and theoretical mathematics questions, verify factual accuracy and logical soundness, capture reproducible error traces, and suggest improvements to our prompt engineering and evaluation metrics. A master's or PhD in mathematics or a closely related quantitative field is ideal; peer‑reviewed publications, teaching experience, research in pure or applied mathematics, or hands‑on experience with mathematical modeling signal fit. Clear, metacognitive communication-“showing your work”-is essential. Ready to turn your mathematics expertise into the knowledge base for tomorrow's AI? Apply today and start teaching the model that will teach the world. We offer a pay range of

Founding Engineer New York City | OnSite ABOUT SOLVA Solva is building AI for insurers to transform an $8 trillion industry, starting with claims. We're backed by $6m from First Round, Y Combinator, SV Angel and angel investors, including Paul Graham, that have funded companies such as OpenAI, Google, Stripe, Anthropic, Databricks and Github. We have an advisory board of experienced insurance executives and founders. Our team was previously part of building Europe's fastest growing InsurTech and founded a licensed EU bank processing payments of €1B/yr+. Now we are taking on one of the world's largest industries and rebuilding it from the ground up with AI. Solva is a Y Combinator S25 company and has emerged as one of the fastest growing and best-funded startups. ABOUT THE ROLE As founding engineer you will work alongside a team of experienced 2x-founders and ex-Apple engineers. Set the bar for AI security and accountability - there are no (good) best practices so we're creating them ourselves. If it makes sense; we do the hard stuff most only say they do. Read a paper or 10 if you must. We're looking for someone who truly wants to innovate. You'll have a defining role in building the core product and further expanding the engineering team. One week you'll be deep in backend systems and cloud infrastructure, the next you'll be making the architectural decisions that define how claims decisions worth multiple billions are made. This is a true ownership role. You won't just ship code,

Senior Machine Learning Engineer 3 Locations posted: Posted 30+ Days Ago

Account Executive - Utilities San Francisco | Hybrid | Remote Company Overview Promise modernizes how government agencies and utilities support people in financial difficulty. We build technology that makes it simple for residents to receive benefits, engage with assistance programs, set up flexible payment plans, and stay on track-while helping agencies increase efficiency, recover revenue, and deliver services with dignity. Our mission is to transform public systems so they work better for everyone, especially the most vulnerable. Our team includes experts from companies like Palantir, Google, Stripe , and esteemed government leaders. We work hard and believe deeply in what we do. We're looking for excellent people to build innovative, resilient technology. Backed by over $50 million in funding from top investors - such as Reid Hoffman, Howard Schultz, Michael Seibel, Y Combinator, 8VC, The General Partnership, First Round Capital, Kapor Capital, XYZ Ventures, and Bronze Investments - Promise has been recognized as one of Fast Company's "World's Most Innovative Companies of 2022,” “Forbes Next Billion-Dollar Startups 2024,” and Y Combinator's #1 GovTech startup. ABOUT THE ROLE Promise's Sales team partners with government agencies and regulated companies such as utilities to modernize how they deliver essential services. Our platform helps these institutions eliminate inefficiency, improve outcomes, and create a better experience for the millions of people who rely on them. As an Account Executive, you will drive new and expansion business across targeted agencies and enterprises. Each customer has unique procurement processes, and successful AEs at Promise see these as

Senior Machine Learning Engineer 5 Locations posted: Posted 30+ Days Ago

Founding Sales Manager Finto HQ, Munich | OnSite ABOUT FINTO Finto is on a mission to reinvent how enterprises run their finance operations. Starting with AI-powered automation for accounts payable, we eliminate manual invoice handling, supplier chasing, 3-Way-Matching and ERP data entry for large enterprises. Backed by Y Combinator and Tier A investors, we're building the future of enterprise accounting. Our mission is to free the world's finance teams from repetitive, low-value tasks so they can focus on impactful work. That starts with building a place where everyone can do their best work. Whether you're building on our platform, partnering with our customers, or shaping our story: We make things finance teams want. ABOUT THE ROLE We are looking for a Founding Sales hire to join our team, focused on bringing Finto to enterprises across DACH. As part of the founding go-to-market team, you will play a pivotal role in shaping how we sell, who we sell to, and how we grow. You'll work side-by-side with our CEO to build our sales motion from scratch - from first outbound message to signed contract. This isn't a role where you inherit a pipeline. You'll build it. Your conversations with CFOs and finance leads will directly shape our product and strategy - in real deals, at real companies. We're headquartered in Munich, with roots in San Francisco through Y Combinator. WHAT YOU'LL DO - Own the full sales cycle: prospecting, qualification, demos, negotiation, close. - Build outbound pipeline from scratch - identify,

AI Research Scientist - Algorithm Chennai,IND posted: Posted Today

Product Engineer Intern Finto HQ, Munich | OnSite ABOUT FINTO Finto is on a mission to reinvent how enterprises run their finance operations. Starting with AI-powered automation for accounts payable, we eliminate manual invoice handling, supplier chasing, 3-Way-Matching and ERP data entry. Backed by Y Combinator, we're building the future of enterprise accounting. Our mission is to free the world's finance teams from repetitive, low-value tasks so they can focus on impactful work. That starts with building a place where everyone can do their best work. Whether you're building on our platform, partnering with our customers, or shaping our story: We just make things finance teams want. ABOUT THE ROLE We are looking for a Product Engineer Intern to join our team, focused on building and optimizing the next generation of AI-powered enterprise finance tools. As part of the engineering team, you will play a central role in shaping dedicated features and helping some of the world's largest companies eliminate their manual accounting work. You'll work side-by-side with our founders and engineers to turn ideas into high-performing, elegant features that slot seamlessly into our customers' existing processes. Your work will directly define how finance teams experience AI automation - in real life, at scale. We're headquartered in Munich, with roots in San Francisco through Y Combinator. WHAT YOU'LL DO - Take ownership of a defined feature area or technical project, working closely with founders and engineers from discovery to delivery. - Help improve model performance and workflow quality by testing,

Junior Server Engineer - Yahtzee! With Buddies Spain Embrace the role of Scopely as a Junior Server Engineer! Join our dynamic team in Barcelona to help build large-scale, high-impact gaming systems for millions of players. Collaborate with talented engineers, develop scalable code, and gain hands-on experience in cloud, databases, and distributed systems. Shape the future of mobile gaming with us!

Account Executive - Public Sector San Francisco | Hybrid | Washington, D.C. | Remote Company Overview Promise modernizes how government agencies and utilities support people in financial difficulty. We build technology that makes it simple for residents to receive benefits, engage with assistance programs, set up flexible payment plans, and stay on track-while helping agencies increase efficiency, recover revenue, and deliver services with dignity. Our mission is to transform public systems so they work better for everyone, especially the most vulnerable. Our team includes experts from companies like Palantir, Google, Stripe , and esteemed government leaders. We work hard and believe deeply in what we do. We're looking for excellent people to build innovative, resilient technology. Backed by over $50 million in funding from top investors - such as Reid Hoffman, Howard Schultz, Michael Seibel, Y Combinator, 8VC, The General Partnership, First Round Capital, Kapor Capital, XYZ Ventures, and Bronze Investments - Promise has been recognized as one of Fast Company's "World's Most Innovative Companies of 2022,” “Forbes Next Billion-Dollar Startups 2024,” and Y Combinator's #1 GovTech startup. ABOUT THE ROLE Promise's Sales team partners with government agencies and regulated companies such as utilities to modernize how they deliver essential services. Our platform helps these institutions eliminate inefficiency, improve outcomes, and create a better experience for the millions of people who rely on them. As an Account Executive, you will drive new and expansion business across targeted agencies and enterprises. Each customer has unique procurement processes, and successful AEs at

Machine Learning Engineer Remote-Germany posted: Posted 10 Days Ago

Operations Manager - Jamble Paris Founded in 2013, Voodoo is a tech company that creates mobile games and apps with a mission to entertain the world. Gathering 800 employees, 7 billion downloads, and over 200 million active users, Voodoo is the #3 mobile publisher worldwide in terms of downloads after Google and Meta. Our portfolio includes chart-topping games like Mob Control and Block Jam, alongside popular apps such as BeReal and Wizz. Jamble is a fashion marketplace powered by Live Streaming & Auctions. We're enhancing resale with a focus on community, fashion, and live interactions. While operating in the U.S. market, our team is entirely based in Paris.After being accelerated at Y Combinator (the world's most prestigious startup accelerator), Jamble has received backing and active support from Voodoo (#3 mobile app publishers worldwide). Our iOS App has surpassed 1M+ downloads, and we're now scaling our operations to the next level. As an Operations Manager at Jamble, you will play a crucial role in developing and optimizing the tools and processes that keep our marketplace running smoothly. You'll work across logistics, seller operations, and data insights to ensure efficiency, accuracy, and scalability as we continue to grow. Jamble is a fashion marketplace powered by Live Streaming & Auctions. We're enhancing resale with a focus on community, fashion, and live interactions. While operating in the U.S. market, our team is entirely based in Paris.After being accelerated at Y Combinator (the world's most prestigious startup accelerator), Jamble has received backing and active support

Algorithm Software Engineer San Diego, CA posted: Posted 30+ Days Ago

Founding Security Engineer Washington, D.C. | Hybrid | Remote Company Overview Promise modernizes how government agencies and utilities support people in financial difficulty. We build technology that makes it simple for residents to receive benefits, engage with assistance programs, set up flexible payment plans, and stay on track-while helping agencies increase efficiency, recover revenue, and deliver services with dignity. Our mission is to transform public systems so they work better for everyone, especially the most vulnerable. Our team includes experts from companies like Palantir, Google, Stripe , and esteemed government leaders. We work hard and believe deeply in what we do. We're looking for excellent people to build innovative, resilient technology. Backed by over $50 million in funding from top investors - such as Reid Hoffman, Howard Schultz, Michael Seibel, Y Combinator, 8VC, The General Partnership, First Round Capital, Kapor Capital, XYZ Ventures, and Bronze Investments - Promise has been recognized as one of Fast Company's "World's Most Innovative Companies of 2022,” “Forbes Next Billion-Dollar Startups 2024,” and Y Combinator's #1 GovTech startup. ABOUT THE ROLE We're hiring a Founding Security Engineer to be our first dedicated security generalist who operates across the full security surface area - writing detection rules, hardening cloud infrastructure, and shipping security improvements through code. Our security team orients around enabling Promise and its clients while guaranteeing a high standard of security. We look for ways to solve problems together with security as one of the key outcomes. WHAT YOU'LL DO - Build and run