Founding Fullstack Engineer @Verso (backed by Hexa)

# Founding Fullstack Engineer @Verso (backed by Hexa)* Paris* Full-Time## Job Description

Verso is building the **Consumer Intelligence OS.**We replace traditional qualitative research agencies with an AI-native platform that conducts, analyzes, and compounds consumer conversations at scale. Instead of one-off studies, companies get a **continuous, structured understanding of their customers**.

Our ambition is to make consumer insight a **real-time, always-on system** embedded in every product and marketing decision.

We’re starting with AI-moderated interviews — but this is just the entry point. The long-term product is a **system of record for consumer understanding**, powered by agentic workflows.

Backed by Hexa (e

Founders), behind Aircall, Front, Spendesk, Yousign and 50+ others.

Verso is founded by an experienced team with a strong track record in strategy, technology, and company building.- CEO: HEC graduate, 7 years at BCG (Principal), expert in strategy, innovation, and consumer goods- CTO: Dual degree X/HEC, former lead at CO2 AI, expert in AI and scalable product development### The role

You will join Verso as a **Founding Engineer** to own systems end-to-end → from infrastructure to product, with no strict boundaries — and help define engineering standards, observability, and the foundations of the team.

You will design and scale a **coherent AI system end-to-end**, at the intersection of agents, data, and product:

• An **AI interviewer** interacting with users at scale (voice & video), sustaining long-form conversations with high reliability* **Agent systems** (state, memory, evaluation loops) orchestrating complex interactions* **Real-time and async pipelines** transforming multimodal data (video, audio, text) into structured, actionable insights
• A **client platform** to explore these insights through an AI-native interface
• Data systems to **structure, query, and reuse qualitative knowledge at scale**
• Optimization of **latency, cost, and performance** across LLM, TTS, STT
• Reliability of **long-running AI workflows in production**### What makes this role unique
• You will build **production-grade AI systems**, not prototypes
• You will work on **long-form, high-stakes interactions**, not short prompts
• You will design systems where **AI quality is as critical as system reliability**
• You will operate at the intersection of **AI, data, infrastructure, and product**### Current stack
• Frontend: Type

Script, React, Tailwind, shadcn* Backend: Python, Fast

API, SQLAlchemy

• Infra: Vercel, Railway, Supabase → AWS
• AI: LLM orchestration, STT/TTS pipelines, eval systems (rapidly evolving)*Note: no need to necessarily master Python and Typescript, your coding agents do* ## Preferred Experience
• You want to build **production-grade AI systems** on messy, real-world data — not demos
• You’re comfortable owning systems **end-to-end**, from architecture to production
• You have experience with **complex systems** (real-time, data pipelines, or LLM-based products)
• You have strong intuition for **trade-offs** (latency, cost, quality, reliability)
• You’re motivated by **building an ambitious, category-defining company** with long-term ownership - not just execution.### Why join* **Category-defining shift**: we’re not improving research workflows — we’re turning consumer understanding into a continuous system.* **Hard technical problems**: production AI systems over rich, unstructured data (audio, video, text, structured), spanning both a B2C product (low latency, high scale, responsiveness) and a B2B platform (enterprise-grade reliability, security, and data integrity).* **Full ownership**: you’ll own architecture, product, and execution from day one, with direct impact on the company trajectory.* **Meaningful equity**: early-stage package with strong upside, aligned with long-term value creation (next fundraise in the coming months).* **Hexa environment**: operate within a top-tier startup studio, with access to talent, resources, and a strong builder ecosystem.*Verso is committed to creating a diverse environment. All qualified applicants will receive consideration for employment irrespective of gender, origin, identity, background, and sexual orientation.**We know there’s a long way to go regarding diversity in our industry, which is why we encourage all applicants - especially those listed above - to apply to our open positions.*
• Contract Type: **Full-Time**
• Location: **Paris*** **Occasional remote authorized**

#J-18808-Ljbffr