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Luthor: Hiring Their First Full-Time Engineer

2025-03-17
Luthor: Hiring Their First Full-Time Engineer

Luthor, a fintech startup building AI-powered marketing compliance agents, is hiring its first full-time engineer. The role involves collaborating directly with the CEO and CTO to design and build the platform's core architecture, directly interacting with customers to gather feedback and develop innovative solutions. The tech stack includes Ruby on Rails, Postgres, React, and Docker. The ideal candidate is customer-obsessed, experienced in building and scaling high-performing B2B software products, entrepreneurial, and a strong communicator. Compensation is $120k-$180k, plus generous equity, commuter benefits, paid team vacations, and comprehensive health insurance.

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(www.ycombinator.com)
Startup

Neuro-First AI Startup Seeks Engineers to Build Groundbreaking Brain-Computer Interfaces

2025-03-17
Neuro-First AI Startup Seeks Engineers to Build Groundbreaking Brain-Computer Interfaces

Piramidal is hiring Research Engineers to build AI systems focused on neural data, enabling previously impossible tasks. Ideal candidates possess strong engineering skills, including designing, implementing, and enhancing massive-scale distributed machine learning systems, and a foundational understanding of neuroscience. The company offers competitive compensation and equity, driven by a mission to empower human potential through technology, championing cognitive liberty and opposing the commodification of minds.

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(www.ycombinator.com)
AI

Founding Applied AI Engineer at Kastle: Revolutionizing Mortgage Servicing with AI

2025-03-16
Founding Applied AI Engineer at Kastle: Revolutionizing Mortgage Servicing with AI

Kastle, an AI-powered platform serving major US mortgage lenders, seeks a Founding Applied AI Engineer. With backing from Y Combinator and other prominent investors, Kastle is redefining loan servicing. This role requires 3+ years of experience in applied AI, proficiency in Python and deep learning frameworks, and experience fine-tuning LLMs. Responsibilities include integrating AI into their platform, designing AI workflows, ensuring regulatory compliance (FDCPA, RESPA, TILA), and optimizing for performance and scalability. This is a unique opportunity to build the foundation of a rapidly growing AI startup.

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(www.ycombinator.com)
AI

Parahelp: Building AI Coworkers That Replace Human Support Agents

2025-03-15
Parahelp: Building AI Coworkers That Replace Human Support Agents

Parahelp is building an AI-powered support agent for software companies. Their agent uses existing infrastructure (Slack, Stripe, etc.) to resolve support tickets end-to-end, aiming to fully replace human support agents. They believe context, not intelligence, will be the bottleneck for future AI coworkers. Launched in August 2024, Parahelp is backed by Y Combinator and prominent investors, and already works with leading companies like Perplexity and Framer.

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(www.ycombinator.com)
AI

Stellar Sleep Seeking Founding Product Engineer

2025-03-15
Stellar Sleep Seeking Founding Product Engineer

Stellar Sleep, a startup on a mission to improve sleep for millions with chronic insomnia, is hiring a founding product engineer. Launched in 2022, the company boasts strong clinical data, backing from top investors like Initialized Capital and Y Combinator, and proven success in helping tens of thousands sleep better. The ideal candidate will have 3-6 years of software engineering experience, proficiency in TypeScript and Python, familiarity with Django Rest Framework or NextJS, and a willingness to work from the San Francisco office. A healthcare background isn't required; a passion for learning and excellence is key.

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(www.ycombinator.com)
Startup Product Engineer

Noloco is Hiring a Senior Product Designer to Build its No-Code App Platform

2025-03-15
Noloco is Hiring a Senior Product Designer to Build its No-Code App Platform

Noloco, a fast-growing, remote-first company backed by Y Combinator, is hiring a Senior Product Designer. Your primary mission will be to establish a strong design foundation for Noloco, making its platform simple, powerful, and flexible for non-technical users. This includes defining the design system, redesigning the mobile experience, and helping to build new product features that enable businesses to build amazing software without writing code. This is a high-impact role where your work will directly influence Noloco's success, with opportunities for growth as the company scales.

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(www.ycombinator.com)
Development

Optifye: YC-backed AI Factory Optimization Startup Hiring Founding Team

2025-03-15
Optifye: YC-backed AI Factory Optimization Startup Hiring Founding Team

Optifye, an AI performance monitoring system for factories, uses computer vision to identify and address inefficiencies in real-time. Having successfully deployed their system across leading manufacturers in garments, automotive, medical, and FMCG sectors on three continents, achieving a 12% productivity boost, they're now scaling rapidly after graduating from YC W25. Their ambitious goal is to deploy their system on 100 manufacturing lines in the next 4 months. They're seeking experienced engineers with deep expertise in GPU/CPU/memory optimization, scaling CV applications in production, containerized cloud deployments (AWS preferred), and a relentless drive to solve complex problems. This is a high-pressure, high-reward opportunity for top-tier talent.

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(www.ycombinator.com)
AI Factory Optimization

Lead Technical Artist Wanted: Revolutionizing Social VR Gaming

2025-03-14
Lead Technical Artist Wanted: Revolutionizing Social VR Gaming

Gym Class, the top-rated Meta Quest game (58K ratings, 4.9 stars), is seeking a Lead Technical Artist! You'll optimize art pipelines, develop tools, and enhance visual fidelity and performance across VR and mobile platforms using Unity, C#, and Python. Collaborate with engineers on performance profiling and optimization. Backed by top-tier investors including Andreessen Horowitz, Y Combinator, and the NBA, this is a chance to work at the forefront of social VR gaming, with fast iteration cycles and a direct impact on product development.

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(www.ycombinator.com)
Game VR Game Development Lead Technical Artist

Prequel: A rapidly growing startup enabling B2B data access for customers

2025-03-14
Prequel: A rapidly growing startup enabling B2B data access for customers

Prequel is a rapidly growing startup empowering B2B companies to make their data accessible to customers. They sync tens of billions of rows of data daily, tackling challenging technical problems, and have achieved strong product-market fit. Currently expanding, they're developing a new product and seeking experienced engineers to build it from the ground up, create excellent React experiences and SDKs, and own key architectural and design decisions. Ideal candidates have 3+ years building software at scale, expertise with React and TypeScript, and a proven ability to design excellent APIs/SDKs. They offer competitive salaries, equity, benefits, and a fantastic work environment.

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(www.ycombinator.com)
Startup

Spark: AI-Powered Streamlining of Renewable Energy Development

2025-03-13
Spark: AI-Powered Streamlining of Renewable Energy Development

Spark is building an advanced AI research tool to help energy developers build solar farms and battery plants. The tool tackles a major challenge in renewables – navigating complex local regulations. Industry leaders like Colliers, Standard Solar, and Cypress Creek Renewables already use Spark to inform investment decisions. Their projects will generate the equivalent of 60GW – enough to power tens of millions of homes annually! Spark is seeking experienced engineers to build core APIs, AI infrastructure, and data pipelines, owning features from concept to production and customer feedback.

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(www.ycombinator.com)
Tech Energy Tech

Shadeform Hiring Senior Software Engineer for GPU Cloud Marketplace

2025-03-13
Shadeform Hiring Senior Software Engineer for GPU Cloud Marketplace

Shadeform is hiring a Senior Software Engineer to build core orchestration and managed services for its GPU cloud marketplace. The company provides affordable and reliable GPU compute to Fortune 100 companies, startups, and more. The ideal candidate will have experience with Go programming, orchestration (Kubernetes, Nomad, etc.), cloud (AWS and GCP), and GPU/ML infrastructure. Competitive compensation, equity, and remote work options are offered.

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(www.ycombinator.com)
Development GPU cloud computing

Legion Health: AI-Powered Mental Healthcare – Hiring Top-Tier Engineers

2025-03-11
Legion Health: AI-Powered Mental Healthcare – Hiring Top-Tier Engineers

YC-backed Legion Health is hiring top-tier AI engineers to build an AI-driven mental healthcare system. Focusing on operational efficiency rather than AI diagnostics, they're optimizing telepsychiatry through AI. Engineers will work on LLM workflow optimization, improving AI models for scheduling, risk assessment, and revenue cycle automation, refining feedback loops, and implementing reinforcement learning. Ideal candidates have 3+ years of AI/ML engineering experience, strong Python and ML skills (LLMs, NLP, PyTorch/TensorFlow), and an interest in AI for healthcare.

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(www.ycombinator.com)
AI

Structured: Redefining Data App Development

2025-03-10
Structured: Redefining Data App Development

Structured is revolutionizing how developers build and deploy data applications by consolidating the entire analytics stack into code. Addressing the inefficiency of deploying production-grade data-intensive apps, Structured offers a lightweight SDK enabling developers to prototype, deploy, and manage data applications (dashboards, internal tools) in hours. They're looking for experienced full-stack engineers to join their team and work on building the core SDK, designing interactive components, and optimizing performance. The tech stack includes Python, TypeScript, Next.js, React, Postgres, AWS/GCP.

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(www.ycombinator.com)
Development data app development lightweight SDK full-stack engineer

Infisical Hiring: Full-Stack Engineer to Revolutionize Secret Management

2025-03-09
Infisical Hiring: Full-Stack Engineer to Revolutionize Secret Management

Infisical, the #1 open-source secret management platform, is seeking a full-stack engineer. You'll build, optimize, and maintain the core product, ensuring a great user experience and exploring AI-driven secret management. Ideal candidates possess strong full-stack skills: infrastructure management, Docker/Kubernetes, cloud-native architecture (AWS preferred), TypeScript/Go. This is a fast-growing team; within 18 months, you'll impact thousands of users and potentially own key platform components.

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(www.ycombinator.com)
Development

SF Startup Seeking Experienced Engineer – Join Our Nimble Team!

2025-03-08
SF Startup Seeking Experienced Engineer – Join Our Nimble Team!

A San Francisco-based startup is hiring an experienced engineer to join its small, agile engineering team. The role involves diverse projects and large-scale data pipelines (100M+ data points monthly). Proficiency in Python, SQL, and Docker is required, with bonus points for web crawling, Kubernetes, and LLM pipeline experience. Excellent benefits include lunch, unlimited PTO, 401k, platinum health insurance, a $150k-$200k salary, and 0.5%-2% equity.

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(www.ycombinator.com)
Development Data Pipeline

YC-backed Kraftful is Hiring a Senior Engineer to Revolutionize Product Development with LLMs

2025-03-07
YC-backed Kraftful is Hiring a Senior Engineer to Revolutionize Product Development with LLMs

Kraftful, a Y Combinator-backed startup, is seeking a passionate senior engineer. Leveraging large language models from OpenAI and others, Kraftful transforms scattered user feedback into actionable product requirements, helping teams build what users actually need. With 50,000+ product teams already using their platform and experiencing 34% MoM MRR growth, Kraftful is rapidly scaling and offers engineers a chance to redefine product development. This is a unique opportunity to join a rocketship company backed by top investors.

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(www.ycombinator.com)
Development

Roame is Hiring a Chief of Staff: Revolutionizing Points Travel

2025-03-07
Roame is Hiring a Chief of Staff: Revolutionizing Points Travel

Roame, a company helping millions redeem points for dream vacations, seeks a Chief of Staff. This executive will work directly with the CEO on numerous strategic initiatives across product, sales, marketing, and more. The ideal candidate will have a background in investment banking, management consulting, or strategy/operations, and a passion for points travel. Roame offers competitive benefits but emphasizes a strong work ethic and high accountability. This is a fast-paced startup role perfect for those aspiring to be a founder or COO.

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(www.ycombinator.com)
Startup Points Travel

Cargo is Hiring its First AE: AI-Powered Sales, Full-Cycle Ownership

2025-03-07
Cargo is Hiring its First AE: AI-Powered Sales, Full-Cycle Ownership

Cargo is searching for its first full-cycle Account Executive to revolutionize its GTM strategy using AI and automation. This isn't just about hitting quota; it's about shaping the future of sales in an AI-first world. The ideal candidate boasts strong B2B SaaS sales experience, a proven track record of exceeding quota, and comfort with AI and automation tools. This role offers significant ownership, covering the entire sales cycle, with the potential to build and lead your own team. Cargo offers competitive compensation and benefits, including equity, unlimited PTO, and robust employee development programs, fostering a collaborative, fast-paced environment.

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(www.ycombinator.com)
Startup AI Sales

Koko: AI-Powered Mental Health Nonprofit Seeking Technical Leader

2025-03-06
Koko: AI-Powered Mental Health Nonprofit Seeking Technical Leader

Koko, a mental health tech non-profit founded by former MIT and Airbnb engineers, is hiring a technical leader. They're building scalable AI systems to provide immediate online mental health support to young people, integrating their interventions into platforms like TikTok and Discord. Having already helped over 4 million young people across 199 countries, Koko emphasizes data-driven product decisions, A/B testing, and rigorous safety standards. This is an opportunity to make a significant impact using AI for good.

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(www.ycombinator.com)
AI Mental Health

Arva AI is Hiring: AI Product Engineer to Revolutionize Financial Crime Intelligence

2025-03-06
Arva AI is Hiring: AI Product Engineer to Revolutionize Financial Crime Intelligence

Arva AI is seeking an AI Product Engineer to build and iterate on the full-stack features of its AI-powered compliance platform. Leveraging cutting-edge AI, including LLMs and computer vision, the platform automates manual review tasks, boosting efficiency and slashing costs. The ideal candidate will have full-stack experience (TypeScript, React, NodeJS) and expertise in prompt engineering, fine-tuning pre-trained models, and training custom models (including vision models). Arva AI fosters a culture of speed, customer focus, and transparency. The position offers competitive salary and equity, plus four weeks of remote work annually.

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(www.ycombinator.com)
Development AI Product Engineer

Datafold: Seeking Senior Backend Engineer to Revolutionize Data Migration with AI

2025-03-05
Datafold: Seeking Senior Backend Engineer to Revolutionize Data Migration with AI

Datafold, a Series A startup backed by top-tier VCs like YC, Amplify, and NEA, is searching for a seasoned backend (or full-stack) engineer. Datafold focuses on data quality and observability, and its AI-powered Datafold Migration Agent (DMA) drastically reduces data migration timelines by 5-10x. DMA combines large language models with unique data diffing technology, automating SQL dialect translation and data reconciliation. The role requires 5+ years of software engineering experience, Python proficiency, and proven end-to-end project management skills. If you're passionate about the intersection of AI and data engineering, this is an exciting opportunity.

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(www.ycombinator.com)
Development Data Migration

Greptile: Hiring Design/Product Engineer for AI Code Review Tool

2025-03-05
Greptile: Hiring Design/Product Engineer for AI Code Review Tool

Greptile, a startup building AI developer productivity tools for large, real-world codebases (starting with an AI code review bot), is hiring a Design/Product Engineer. They've raised $5.3M from investors like YC and are experiencing 20-30% monthly growth, serving over 1000 software teams. Ideal candidates will have strong TS/JS skills, UI/UX design experience, and US work authorization, and be willing to relocate to San Francisco.

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(www.ycombinator.com)
Development Developer Tools

YC-Backed Startup Seeks Founding Web Scraping Engineer

2025-03-04
YC-Backed Startup Seeks Founding Web Scraping Engineer

A YC-backed startup is hiring a Founding Web Scraping Engineer to build internet-scale web crawling infrastructure capable of handling millions of domains and evolving anti-bot defenses. The role requires expert-level experience in large-scale web scraping and crawling (Selenium, Puppeteer, Playwright, Scrapy, etc.), with a deep understanding of anti-bot detection strategies and proven experience in captcha solving, proxy management, and data cleaning. The platform aims to provide end-to-end testing for web agents, including a Browser Gym for RL-driven optimization.

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(www.ycombinator.com)
Development Large-Scale Data Extraction Anti-bot

Distro: Hiring a Marketing Lead for AI-Powered Wholesale Platform

2025-03-02
Distro: Hiring a Marketing Lead for AI-Powered Wholesale Platform

Distro, an AI-powered point-of-sale platform for industrial wholesalers and distributors, is seeking a Marketing Lead. The role requires 5+ years of B2B startup marketing experience, encompassing content marketing (LinkedIn, video, articles), email marketing, paid advertising, website optimization, and event planning. Located in Palo Alto, Distro offers a competitive benefits package.

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(www.ycombinator.com)
Startup Marketing

Openlayer: Hiring Backend Engineer to Tackle AI Reliability

2025-02-28
Openlayer: Hiring Backend Engineer to Tackle AI Reliability

Openlayer, a startup tackling the AI reliability problem, is hiring a seasoned backend engineer. The role involves maintaining and expanding their core API, working with large datasets, improving user-facing developer tools, and contributing to security, new features, bug fixes, and product ideation. Ideal candidates will have 5+ years of backend or full-stack experience, proficiency in Python and another language, and a passion for building scalable data engines. Openlayer offers competitive salary, equity, health benefits, and a flexible work environment.

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(www.ycombinator.com)
Development backend engineer startup hiring

Kastle is Hiring a Founding Backend Engineer to Build its AI-Powered Mortgage Servicing Platform

2025-02-27
Kastle is Hiring a Founding Backend Engineer to Build its AI-Powered Mortgage Servicing Platform

Kastle, an AI-powered platform revolutionizing mortgage servicing, seeks a seasoned Backend Engineer to join its founding team. You'll architect and scale Kastle's AI infrastructure, developing backend services for their AI-driven mortgage applications. This requires expertise in Python, asynchronous programming, containerization (Docker, Kubernetes), distributed systems, and financial regulations. This high-impact role offers significant ownership and the chance to shape the technical direction of a fast-growing Fintech startup.

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(www.ycombinator.com)
Development

PropRise Seeks Founding Engineer: Build a Million-Record Property Data Platform

2025-02-23
PropRise Seeks Founding Engineer: Build a Million-Record Property Data Platform

PropRise is seeking an experienced full-stack engineer as its Founding Engineer to own and build the systems powering its rapidly growing platform. This involves building robust backend data systems and engaging front-end interfaces for millions of property records. Candidates must have full-stack experience, expertise in building scalable, data-intensive systems, and a proven ability to iterate and deploy quickly. The tech stack includes Typescript, Next.js, React, Postgres, and GCP. This is a challenging and rewarding role ideal for engineers who thrive in fast-paced environments, enjoy tackling complex problems, and are passionate about the intersection of AI and data quality.

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(www.ycombinator.com)
Development Full-stack Engineer Data Platform

POSH is Hiring an Energy Analysis & Modeling Engineer

2025-02-21
POSH is Hiring an Energy Analysis & Modeling Engineer

POSH, a company revolutionizing the battery energy storage industry with innovative solutions for commercial and industrial applications, is seeking an Energy Analysis & Modeling Engineer. This role involves developing, analyzing, and optimizing energy storage models to improve system performance, efficiency, and cost-effectiveness. Ideal candidates will possess a Bachelor's or Master's degree in Electrical Engineering, Mechanical Engineering, Energy Systems, or a related field, along with 2+ years of experience in energy modeling or battery storage system analysis. Proficiency in Python and other simulation software is essential. Responsibilities include developing energy models for battery storage and hybrid systems, performing technical and economic analysis, collaborating with hardware and software teams, and working with sales to generate proposals. POSH offers a competitive salary, benefits, and equity participation.

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(www.ycombinator.com)
Tech energy modeling job posting

Exa: Building the Next-Gen AI Chips - Join the Founding Team!

2025-02-21
Exa: Building the Next-Gen AI Chips - Join the Founding Team!

Exa is building the next generation of AI chips, aiming to surpass current market leaders. Their novel polymorphic XPU chips self-reconfigure for optimal dataflow, supporting AGI and ASI while drastically reducing energy consumption. They're seeking exceptional engineers to join their founding team and build revolutionary technology with lasting impact for centuries.

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(www.ycombinator.com)
Hardware Job Opportunity
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