Founder Associate Intern at Hexa (WTF Studio)

HexaParis

On-site Intern

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Experience Level

Entry Level

Qualifications

Qualifications:Enthusiasm for entrepreneurship, innovation, and technology. Strong analytical skills with a knack for market research. Excellent communication and interpersonal abilities. Ability to think critically and solve problems creatively. Previous experience in startups or relevant fields is a plus.

About the job

At Hexa, we empower entrepreneurs to transform their dreams into exceptional companies

Since our inception in 2011 as eFounders, Hexa has been at the forefront of innovation as a startup studio, successfully launching over 40 companies with a staggering combined valuation exceeding $5 billion. Our portfolio includes notable names like Aircall, Spendesk, Front, Swan, Yousign, Upflow, and many more. Our passion lies in B2B software, particularly in the realms of the future of work, artificial intelligence, and fintech.

Our Unique Approach:

We equip entrepreneurs with:

Innovative startup ideas that defy the odds

A dedicated team for building a top-notch MVP

A proven methodology for swift product market entry

A compelling brand to attract leading talents

Funding to support the initial 12-18 months of startup life

A lifelong community of fellow entrepreneurs and peers

We believe our method fosters companies that are more innovative, ambitious, and impactful, truly outstanding. We see innovation as a catalyst for economic growth, appreciate ambition's contribution to long-term value creation, and aim to enhance the lives of countless individuals.

Join us in our mission to build the remarkable enterprises of the future!

Role Overview:

As a member of WTF Studio, a newly established vertical at Hexa, you will work alongside Raphaël Vullierme, a seasoned entrepreneur (known for Luko), and Louise, our Go-To-Market Lead.

Our Methodology: We act as the "3rd Co-founder." We identify unique ideas, recruit elite Founders to spearhead them, and support their journey from inception to Series A.

This position combines the strategic acumen of venture capital, market analysis, thesis development, and access to premier networks, with the exhilarating hands-on experience of the zero-to-one journey. You won’t just identify potential winners; you’ll collaborate with founders to create them.

About Hexa

Hexa is a pioneering startup studio that supports visionary entrepreneurs in building transformative companies. With a focus on B2B solutions, AI, and fintech, we leverage our extensive expertise and network to accelerate growth and innovation in the startup ecosystem.

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Founder Associate Intern at Hexa (WTF Studio)

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Founder Associate Intern at Hexa | Paris

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Full-time|On-site|Paris

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Unsolicited Application at Hexa | Paris

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Full-time|On-site|Paris

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Full-time|On-site|Paris

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Full-time|On-site|Paris

Join Plato in Revolutionizing the Legal Tech Landscape!At Plato, we are pioneering the operating system for litigation lawyers, poised to transform the legal industry through innovative GenAI solutions. Litigation lawyers face a myriad of complex and repetitive tasks, from intricate damage calculations to reviewing extensive documentation and drafting legal materials. Our Vision: We aim to create the premier operating system for litigation lawyers, allowing them to reduce administrative and operational workload by up to five times, enabling a focus on strategic advocacy.Currently, Plato partners with approximately ten law firms and a major insurance legal team specializing in personal injury, leveraging our platform daily to manage hundreds of active cases.Founded in January 2026 by Ben (CEO) and Alexandre (CTO), our venture is supported by Hexa, Europe’s premier startup studio known for launching over 35 successful companies, including notable unicorns like Front, Aircall, and Spendesk, collectively achieving over €230M in ARR and attracting more than €750M in funding.With our solution already live and in active use, we are entering a pivotal phase of development. We are seeking a passionate individual prepared to take ownership and contribute to shaping the product, architecture, and engineering culture from the ground up. Your Role: We are looking for a Founding Engineer to become our first hire and collaborate closely with Alexandre, Co-founder & CTO. You will play a crucial role in developing our core product, including production AI systems, backend architecture, and user-facing features that law firms and insurance companies will rely on daily.This position is not research-focused; rather, it is about transforming cutting-edge AI into dependable, real-world software in a complex, high-stakes environment. You will influence product decisions and manage systems from initial prototypes to full production.Your contributions will significantly impact our development trajectory and engineering practices.

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Full-time|On-site|Paris

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Waniwani

Full-time|On-site|Paris

Join Waniwani as a Founding Platform Engineer and revolutionize our infrastructure for seamless scalability.We have pioneered the first insurance application integrated with ChatGPT. Today, numerous companies are eager to leverage our platform to establish their own AI-driven storefronts. Each client requires a dedicated MCP server, a unique codebase, and tailored distribution, all functioning seamlessly and interconnected under your management.About WaniwaniWaniwani is at the forefront of creating the AI distribution framework for the $10 trillion services economy. Our platform empowers businesses to offer quote-based services such as insurance and wealth management directly within LLMs, where consumer purchasing decisions are increasingly shifting. Imagine Shopify, but tailored for services — we are constructing the foundation for AI-native commerce.We are just beginning this transformative journey. Our launch of ChatGPT insurance resulted in a staggering $26 billion in market cap losses for major brokers within just 48 hours, marking what the press has dubbed "the industry's ChatGPT moment." We refer to it as Day 1.Why This Position MattersHaving surpassed the proof of concept stage, our product is operational. We are now tasked with managing this for hundreds of clients simultaneously, each with its own MCP server, distinct data pipelines, and customized distribution dashboards, all while ensuring the platform remains robust and responsive.This role presents a systems-level engineering challenge. You will be responsible for architecting a solution that allows Waniwani to expand from dozens to thousands of deployments. This includes multi-tenant infrastructure, orchestration of multiple codebases, and real-time data flow across a multitude of interconnected services. In this role, a single flawed abstraction can cost months, whereas a well-designed one can save years.We anticipate that AI will write 95% of your code. Your expertise will not lie in typing code but in discerning what needs to be built, how to structure it, and when the AI may be misguided. You will work at a pace that integrates LLMs as a fundamental aspect of your engineering process, rather than viewing them as a novelty. The key challenge will be exercising judgment, not merely keystrokes.

Feb 17, 2026

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Founding Engineer at Panora | Paris

Hexa

Full-time|On-site|Paris

About PanoraPanora is an innovative B2B platform that develops AI-driven agents specifically designed for insurance brokers, a sector characterized by stringent regulations and operational intricacies.Our vision is to establish ourselves as the AI Operating System for brokers throughout Europe, streamlining labor-intensive, repetitive tasks while enhancing compliance, advisory quality, and client engagement.Our product is already operational with brokerage firms in France and Belgium, showcasing AI agents performing tasks such as contract comparisons, coverage analysis, compliance evaluations, and assistance in applications like Outlook and Word.Founded by Diane, an ex-VC with a robust operational background, and Fabian, a repeat founder and product-centric AI engineer, Panora is supported by Hexa (formerly eFounders), the startup studio responsible for launching over 40 tech companies, including Aircall, Spendesk, and Front. We are now poised to enter a critical phase focused on structuring and scaling our platform.At Panora, AI is not merely an additional feature; it is the essence of our product. You will engage directly with Large Language Models (LLMs), agent-based systems, and production-quality AI pipelines, all while adhering to real-world regulatory and reliability standards from day one.About the RoleAs a Founding Engineer, you will be an integral part of the founding team, focusing on the core product and technical strategy.You will collaborate closely with the CTO and participate in all phases of the product lifecycle: from architecture and development to technical decision-making and ensuring production readiness.This is a hands-on, impactful role that offers significant ownership and influence over the company’s technical trajectory.ResponsibilitiesProduct & Engineering• Design, develop, and deploy key product features across AI agents, workflows, and integrations.• Take ownership of technical architecture decisions, ensuring scalability, security, and compliance.• Collaborate with the founding team to transform product concepts into production-ready systems.AI & Production Systems• Construct and refine AI pipelines (LLMs, RAG, agent-based systems) tailored for regulated real-world applications.• Guarantee reliability, traceability, and explainability of AI outputs in a production environment.• Optimize performance, cost, and quality as the platform expands.Ownership, Quality & Scalability

Jan 26, 2026

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Founding AI Engineer at Panora | Paris

Panora

Full-time|On-site|Paris

Role overview Panora, supported by Hexa, is hiring a Founding AI Engineer in Paris. As one of the first technical hires, this role shapes the company’s direction and leads the development of new AI solutions from the ground up. The team values original thinking and a focus on practical outcomes, encouraging new approaches in artificial intelligence. What you will do Design and build AI-driven products, playing a key role in technical decisions Collaborate with team members from diverse backgrounds to tackle complex challenges Lead projects aimed at making a meaningful impact in the industry Location This role is based in Paris.

Apr 27, 2026

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