Y Combinator Portfolio Jobs — 38 open
Leaping AITech Lead
San Francisco, United States · On-site
$220k–$250k
6+ years experience
Leaping AI is building voice and texting AI agents for the home improvement industry and seeks a Tech Lead to scale engineering impact and operations. This role partners closely with the CTO and senior leadership to driv…
telliAccount Executive / Sales Dev
Berlin, Germany · On-site
$75k–$120k
This role is for telli’s founding Sales Development Representative on the Growth team in Berlin, focused on generating and owning pipeline for a voice AI product with strong market demand. You’ll help shape the sales pla…
telliHead of Marketing / Marketing Lead
Mannheim, Germany · On-site
$75k–$120k
4+ years experience
telli is seeking a Head of Marketing / Marketing Lead to own and scale the company’s marketing engine—from strategy and budget to execution. You’ll translate a technical product into compelling positioning and build a re…
MercuraFounding People & Talent Lead
Germany · On-site
2–5 years experience
Mercura is hiring a Founding People & Talent Lead to build our Talent and People function from the ground up, owning end-to-end recruiting and shaping how we onboard, develop, and retain exceptional teams as we scale. Th…
MercuraCustomer Support Engineer
Munich, Germany · On-site
1+ years experience
Mercura is hiring a Customer Support Engineer to own technical customer resolution end-to-end, ensuring our AI-driven infrastructure is reliable for customers who depend on it for core operations. You will sit at the int…
MercuraCustomer Success Manager
München, Germany · On-site
1+ years experience
As Mercura's first Customer Success Manager, you'll own the end-to-end customer journey to ensure every user gets maximum value from our product and to drive retention and growth. You will work closely with the CPO, sale…
MercuraStaff Engineer
München, Germany · On-site
8+ years experience
Mercura is hiring a Founding Staff Engineer to be the technical backbone of a small, fast-moving engineering organization, owning high-leverage systems across multiple products. This hands-on role combines deep technical…
LangdockProduct Marketer
On-site
Langdock is looking for a Product Marketer who sits between product and market to translate frequent releases into clear positioning, stories, and sales-ready materials. This role is central to shaping how customers and …
LangdockBrand Design
On-site
This role owns the Langdock brand across digital and physical touchpoints, shaping how people experience the company from website to merch to event spaces. You’ll join a small team with creative latitude to define launch…
LangdockEnterprise Account Manager - m/f/d
Germany · On-site
$80k–$120k
5+ years experience
This role guides enterprise customers through AI transformation by owning a book of business, driving adoption, retention, and expansion, and using Langdock’s product to automate and scale outcomes. You’ll work closely w…
telliCustomer Engineer
Berlin, Germany · On-site
2+ years experienceVisa sponsorship
Telli is seeking a Customer Engineer to join our technical customer-success team. You will work closely with product, engineering, and customers to ensure successful adoption of our platform and translate customer needs …
Skills: Figma, Lovable, V0, Figma Make, AI/LLMs
telliSoftware Engineer
Berlin, Germany · On-site
$75k–$160k
2+ years experienceVisa sponsorship
telli is seeking a Software Engineer to join a small, fast-moving team where you’ll own projects end-to-end and shape the product alongside customers. You’ll influence core architecture, ship features with velocity, and …
Skills: TypeScript, React, TanStack, Node, Python
MercuraFull-Stack Engineer
Munich, Germany · On-site
$90k–$200k
1+ years experience
Mercura is seeking a Full-Stack Engineer to build AI systems end-to-end. This fast-paced, hands-on role requires high agency, technical depth, and a founder mindset to ship complex web applications. You’ll join a product…
Skills: Next.js, Python, React, TypeScript, Machine Learning
AlephStaff Fullstack Engineer
United States, United States · Remote
$185k–$240k
8+ years experienceVisa sponsorship
Aleph is seeking a staff-level engineer to lead platform development from the ground up. You’ll partner with the technical CEO, CTO, and engineering team to build critical software with outsized impact in an AI-focused e…
Skills: GCP, TypeScript, JavaScript, React, Node.js
AlephSenior Fullstack Engineer
United States, United States · Remote
$150k–$220k
5+ years experienceVisa sponsorship
Aleph is looking for a Senior Fullstack Engineer to help build critical software with outsized impact as part of an early, ground-floor team.You’ll partner with Aleph's technical CEO, CTO, and engineers to deliver high-q…
Skills: GCP, TypeScript, JavaScript, React, Node.js
LangdockPlatform Engineer
Berlin, Germany · On-site
$75k–$120k
2+ years experienceVisa sponsorship
Langdock is seeking a Platform Engineer to help build and maintain the backbone of our enterprise AI platform. This full-time, on-site role in Berlin drives deployment, automation, and secure operations across customer c…
Skills: Kubernetes, Docker, Terraform, Azure Container Apps, GitHub Actions
LangdockSoftware Engineer (Full-Stack)
Berlin, Germany · On-site
$66k–$120k
2–7 years experienceVisa sponsorship
Langdock is building features end-to-end for an AI-focused platform, giving engineers substantial impact at an early-stage startup. This full-time, on-site role offers ownership over product features, architecture decisi…
Skills: Node.js, PostgreSQL, JavaScript, TypeScript, React
LangdockProduct Engineer (Full-stack)
Berlin, Germany · On-site
$66k–$120k
2+ years experienceVisa sponsorship
Langdock is seeking a highly skilled and proactive Full-Stack Product Engineer to join our team full-time and in person. This early-stage startup role offers the opportunity to own features end-to-end, collaborate closel…
Skills: Next.js, TypeScript, Node.js, PostgreSQL, Redis
MercuraAI/LLM Engineer
Munich, Germany · On-site
$90k–$200k
1+ years experienceVisa sponsorship
Mercura is seeking an AI Engineer to build end-to-end AI systems that power practical, AI-driven features for the backbone of the economy. You’ll join a fast-paced team bridging AI, ML, data engineering, and full-stack d…
Skills: Next.js, Python, React, TypeScript, Docker
Mercura(Senior) Business Development Representative (BDR)
Munich, Germany · On-site
$50k–$100k
1+ years experienceVisa sponsorship
Mercura is building AI software for the backbone of our economy. We’re one of the fastest growing companies from YC’s W25 batch, aiming to hit $10M ARR by the end of 2026. As the first (Senior) Business Development Repre…
Skills: TypeScript, Python, React, Next.js, Docker
MercuraAccount Executive (AE)
Munich, Germany · On-site
$70k–$130k
1+ years experienceVisa sponsorship
Mercura is building AI software for the backbone of our economy. As an Account Executive, you’ll own the full sales cycle from first meeting to close, helping Munich-based customers boost productivity with AI. Join a fas…
Skills: TypeScript, Python, React, Next, Docker
TavusBrand & Product Designer
ABOUT US Tavus https://www.tavus.io/ is a research lab pioneering human computing. We’re building AI Humans: a new interface that closes the gap between people and machines, free from the friction of today’s systems. Our…
TavusVisual & Motion Designer
Visual & Motion Designer About Us Tavus is a research lab pioneering human computing. We’re building AI Humans: a new interface that closes the gap between people and machines, free from the friction of today’s systems. …
TavusHead of Marketing
ABOUT TAVUS Tavus https://www.tavus.io/ is a research lab pioneering human computing. We’re building AI Humans: a new interface that closes the gap between people and machines, free from the friction of today’s systems. …
TavusSenior Recruiter
ABOUT US Tavus https://www.tavus.io/ is a research lab pioneering human computing. We’re building AI Humans: a new interface that closes the gap between people and machines, free from the friction of today’s systems. Our…
TavusAI Researcher (Multimodal Audio/Video Generation)
ABOUT US Tavus https://www.tavus.io/ is a research lab pioneering human computing. We’re building AI Humans: a new interface that closes the gap between people and machines, free from the friction of today’s systems. Our…
TavusSenior+ AI Researcher (Large Language Models)
ABOUT US Tavus https://www.tavus.io/ is a research lab pioneering human computing. We’re building AI Humans: a new interface that closes the gap between people and machines, free from the friction of today’s systems. Our…
TavusAI Researcher (Large Language Models)
ABOUT US Tavus https://www.tavus.io/ is a research lab pioneering human computing. We’re building AI Humans: a new interface that closes the gap between people and machines, free from the friction of today’s systems. Our…
TavusSenior+ AI Researcher (Multimodal Perception Models)
ABOUT US Tavus https://www.tavus.io/ is a research lab pioneering human computing. We’re building AI Humans: a new interface that closes the gap between people and machines, free from the friction of today’s systems. Our…
TavusAI Researcher (Multimodal Perception Models)
ABOUT US Tavus https://www.tavus.io/ is a research lab pioneering human computing. We’re building AI Humans: a new interface that closes the gap between people and machines, free from the friction of today’s systems. Our…
TavusSenior+ Product Engineer
About Us Tavus https://www.tavus.io/ is a research lab pioneering human computing. We’re building AI Humans: a new interface that closes the gap between people and machines, free from the friction of today’s systems. Our…
TavusAI Researcher (Rendering)
ABOUT US Tavus https://www.tavus.io/ is a research lab pioneering human computing. We’re building AI Humans: a new interface that closes the gap between people and machines, free from the friction of today’s systems. Our…
TavusAI Researcher (Voice)
ABOUT US Tavus https://www.tavus.io/ is a research lab pioneering human computing. We’re building AI Humans: a new interface that closes the gap between people and machines, free from the friction of today’s systems. Our…
TavusVisual & Motion Designer
ABOUT US Tavus https://www.tavus.io/ is a research lab pioneering human computing. We’re building AI Humans: a new interface that closes the gap between people and machines, free from the friction of today’s systems. Our…
TavusSenior Software Engineer (Agentic Systems)
ABOUT US Tavus https://www.tavus.io/ is a research lab pioneering human computing. We’re building AI Humans: a new interface that closes the gap between people and machines, free from the friction of today’s systems. Our…
TavusSenior Product Designer
ABOUT US Tavus https://www.tavus.io/ is a research lab pioneering human computing. We’re building AI Humans: a new interface that closes the gap between people and machines, free from the friction of today’s systems. Our…
TavusSenior Software Engineer (CVI)
About Us Tavus https://www.tavus.io/ is a research lab pioneering human computing. We’re building AI Humans: a new interface that closes the gap between people and machines, free from the friction of today’s systems. Our…
TavusSolutions Engineer
ABOUT US Tavus https://www.tavus.io/ is a research lab pioneering human computing. We’re building AI Humans: a new interface that closes the gap between people and machines, free from the friction of today’s systems. Our…