Founding Forward Deployed Engineer, French Speaking

Jobtailor; Barcelona; On-site; EUR 55,000 - 85,000; Full time

Job summary

Jobtailor is seeking a customer-facing engineer to work with French-speaking clients, helping them integrate and optimize our AI solutions while collaborating with product and success teams.

You will develop features using React, TypeScript, Node.js and Python, design AI/ML workflows, manage APIs, and drive multi-project delivery in a fast-paced environment.

Qualifications

• Native or fluent French speaker (C1/C2) essential for direct communication with French-speaking customers.
• Strong full-stack experience: React, TypeScript, Node.js.
• Hands-on proficiency in Python.
• Experience building AI/ML applications, including LLM prompting and tuning.
• Ability to manage APIs and integrate with third-party systems.
• Excellent communication skills with the ability to explain technical concepts to non-technical stakeholders.
• Proven ability to prioritize and manage multiple projects under tight deadlines.
• Founder mindset: highly independent, takes ownership, and thrives in a fast-paced environment.

Responsibilities

• Customer‑Facing Engineering – Work closely with customers from onboarding to ongoing usage, helping them integrate and optimize our AI solutions.
• Technical Development – Build new features, MVPs, and scalable solutions that directly impact customer outcomes.
• Full‑Stack Development – Utilize React, TypeScript, Node.js, and Python to develop robust applications and tools.
• AI/ML Applications – Design, implement, and iterate on AI/ML solutions, including LLM prompting, tuning of voices, and transcribers to optimize use cases.
• Integration & APIs – Manage APIs and integrations with third‑party systems to ensure seamless functionality for customers.
• Cross‑Functional Collaboration – Partner with Product, Engineering, and Customer Success teams to deliver tailored solutions.
• Iterative Problem‑Solving – Continuously iterate and improve AI solutions based on customer feedback and evolving requirements.
• Project Management – Prioritize and manage multiple projects under tight deadlines while maintaining high‑quality results.

Skills

French (C1/C2)

Full-stack development

Tools

React

TypeScript

Node.js

Python

Job description

Responsibilities

• Customer‑Facing Engineering – Work closely with customers from onboarding to ongoing usage, helping them integrate and optimize our AI solutions.
• Technical Development – Build new features, MVPs, and scalable solutions that directly impact customer outcomes.
• Full‑Stack Development – Utilize React, TypeScript, Node.js, and Python to develop robust applications and tools.
• AI/ML Applications – Design, implement, and iterate on AI/ML solutions, including LLM prompting, tuning of voices, and transcribers to optimize use cases.
• Integration & APIs – Manage APIs and integrations with third‑party systems to ensure seamless functionality for customers.
• Cross‑Functional Collaboration – Partner with Product, Engineering, and Customer Success teams to deliver tailored solutions.
• Iterative Problem‑Solving – Continuously iterate and improve AI solutions based on customer feedback and evolving requirements.
• Project Management – Prioritize and manage multiple projects under tight deadlines while maintaining high‑quality results.

Requirements

• Native or fluent French speaker (C1/C2 level) – essential for direct communication with French‑speaking customers.
• Strong full‑stack experience: React, TypeScript, Node.js.
• Hands‑on proficiency in Python.
• Experience building AI/ML applications, including LLM prompting and tuning.
• Ability to manage APIs and integrate with third‑party systems.
• Excellent communication skills with the ability to explain technical concepts to non‑technical stakeholders.
• Proven ability to prioritize and manage multiple projects under tight deadlines.
• Founder mindset: highly independent, takes ownership, and thrives in a fast‑paced environment.