Founding AI Product Engineer – HR Tech | Equity & Visa

fledge; Barcelona; Presencial; EUR 90.000 - 140.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Relocation support

Visa administration

Equity plan

Top of market salary

Descripción de la vacante

Fledge is seeking a Product Engineer to join an elite team building an AI platform tailored for HR. You will be the technical architect and backbone of the platform, focusing on backend development with Python/Django and designing scalable AI-native architectures to orchestrate complex recruitment workflows using AI-assisted tools.

You will shape production-grade conversational AI systems, integrating LLMs and real-time interfaces with a strong emphasis on autonomy and efficiency.

Formación

• Expert-level proficiency in Python with Django, Django Channels, FastAPI, ASGI, and async programming.
• Strong system design skills and ability to articulate technical trade-offs.
• Proven skills in building scalable backend systems handling 100+ concurrent AI workflows with low latency.
• Deep knowledge of LLMs, including prompt engineering, chaining, caching, fine-tuning, and usage of open-source or closed-source models.
• Experience with retrieval-augmented generation (RAG), vector databases, and semantic search implementations.
• Familiarity with AI agentic frameworks, multi-agent orchestration, planning, and reasoning systems.
• Hands-on experience integrating speech-to-text, text-to-speech, telephony (Twilio, IVR), and voice activity detection into production systems.
• Proficiency with AI-assisted development tools and ability to deliver full-stack features (backend + frontend) efficiently.
• Good frontend skills with JavaScript/TypeScript and React (AI-assisted vibe coding).
• Understanding of asynchronous message queues (Celery, RabbitMQ/Redis) and data storage technologies (PostgreSQL, Redis).
• English and Spanish fluency

Responsabilidades

• Lead the development of full-stack solutions, from designing intuitive user interfaces to crafting robust backend systems.
• Collaborate with cross-functional teams, including AI researchers and data scientists, to seamlessly integrate AI models into user-centric applications.
• Architect scalable, maintainable systems that support the company’s rapid growth and mission to make a meaningful environmental impact.
• Drive innovation by exploring and implementing modern frameworks, APIs, and cloud solutions.
• Mentor and support junior developers, fostering an environment of collaboration and technical excellence.
• Automate and optimize systems to deliver faster, more efficient solutions to both users and internal teams.

Conocimientos

Python

Django

Async programming

LLMs

RAG

Vector databases

Speech-to-text

Text-to-speech

Twilio

React

PostgreSQL

Redis

Celery

AWS

Azure

Herramientas

Docker

Kubernetes

CI/CD

AWS

Descripción del empleo

Fledge is seeking a Product Engineer to join an elite team building an AI platform tailored for HR. You will be the technical architect and backbone of the platform, focusing on backend development with Python/Django and designing scalable AI-native architectures to orchestrate complex recruitment workflows using AI-assisted tools.

You will shape production-grade conversational AI systems, integrating LLMs and real-time interfaces with a strong emphasis on autonomy and efficiency.