Y Combinator Portfolio Jobs — 38 open

Leaping AI logoLeaping AI

Tech 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…

telli logotelli

Account 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…

telli logotelli

Head 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…

Mercura logoMercura

Founding 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…

Mercura logoMercura

Customer 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…

Mercura logoMercura

Customer 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…

Mercura logoMercura

Staff 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…

Langdock logoLangdock

Product 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 …

Langdock logoLangdock

Brand 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…

Langdock logoLangdock

Enterprise 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…

telli logotelli

Customer 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

telli logotelli

Software 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

Mercura logoMercura

Full-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

Aleph logoAleph

Staff 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

Aleph logoAleph

Senior 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

Langdock logoLangdock

Platform 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

Langdock logoLangdock

Software 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

Langdock logoLangdock

Product 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

Mercura logoMercura

AI/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 logoMercura

(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

Mercura logoMercura

Account 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

Tavus logoTavus

Brand & 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…

Tavus logoTavus

Visual & 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. …

Tavus logoTavus

Head 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. …

Tavus logoTavus

Senior 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…

Tavus logoTavus

AI 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…

Tavus logoTavus

Senior+ 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…

Tavus logoTavus

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…

Tavus logoTavus

Senior+ 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…

Tavus logoTavus

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…

Tavus logoTavus

Senior+ 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…

Tavus logoTavus

AI 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…

Tavus logoTavus

AI 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…

Tavus logoTavus

Visual & 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…

Tavus logoTavus

Senior 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…

Tavus logoTavus

Senior 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…

Tavus logoTavus

Senior 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…

Tavus logoTavus

Solutions 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…

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Y Combinator is a startup accelerator that provides funding and mentorship to early-stage companies. It offers a program where startups receive guidance from experienced entrepreneurs and investors. The organization helps founders in their business models and develop their products. Y Combinator serves industries such as technology, healthcare, and finance.

50 open roles·11 portfolio companies hiring
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