At ioBuilders, we are looking for a visionary Technical Lead with deep expertise in Artificial Intelligence to spearhead our AI initiatives within the Financial and Legaltech sectors. You will be responsible for bridging the gap between cutting-edge AI research and production-ready solutions that transform how institutions handle complex financial data and legal frameworks. You won't just be managing a team; you will be the architectural North Star for our AI roadmap, ensuring our solutions are scalable, secure, and ethically sound.

Work modality: FULL REMOTE from anywhere in Spain (MANDATORY: Current location in Spain with EU working permit)

Key Responsibilities

● Technical Leadership: Lead and mentor a high-performing team of AI engineers and developers, fostering a culture of technical excellence and continuous learning.

● Architecture & Design: Design and oversee the implementation of robust AI architectures, specifically focusing on Large Language Models (LLMs), Natural Language Processing (NLP), and predictive analytics for financial/legal use cases.

● Product Strategy: Collaborate with stakeholders to define the AI product roadmap, identifying opportunities where AI can disrupt traditional financial and legal processes.

● Hands-on Development: Maintain a "player-coach" mentality, contributing to the codebase for critical components and conducting rigorous code reviews.

● Security & Compliance: Ensure all AI solutions adhere to the strict regulatory standards of the financial and legal industries (e.g., GDPR, EU AI Act, financial data privacy).

● Innovation: Stay at the forefront of AI trends (Agentic workflows, RAG, Fine-tuning) to keep ioBuilders at the cutting edge of the industry.

Technical Requirements

● Experience: 7+ years in software engineering, with at least 3 years in a leadership/management role and a strong track record in AI-driven projects.

● AI Mastery: Extensive experience with Python and AI frameworks such as PyTorch, TensorFlow, or JAX.

● Modern AI Stack: Proven expertise in implementing RAG (Retrieval-Augmented Generation), fine-tuning LLMs (OpenAI, Anthropic, Llama), and working with vector databases (Pinecone, Milvus, or Weaviate).

● Cloud & DevOps: Experience with cloud infrastructure (AWS/Azure/GCP) and MLOps tools for deploying and monitoring models in production.

● Fintech/Legaltech Context: Familiarity with financial datasets, smart contracts, or automated document analysis is highly preferred.

Soft Skills

● Problem Solver: Ability to navigate the ambiguity of emerging technologies and turn them into concrete business value.

● Communicator: Capable of explaining complex technical AI concepts to non-technical stakeholders and clients.

● Strategic Thinker: Someone who looks beyond the code to understand the long-term impact on the FinTech ecosystem.

Why Join ioBuilders?

1. Work at the forefront of the digital asset and blockchain revolution.
2. A remote-friendly, agile environment that values autonomy and impact.
3. The opportunity to build tools that define the future of regulated financial markets.
4. Challenging projects and a great environment.
5. Innovation and building new business with your own hands.
6. Flat organization and short decision paths.
7. Flexible working hours.
8. Remote working (Based on the team needs).
9. Remote Work Allowance.
10. Social benefits: Flexible Payment Plan, medical insurance and others.
11. 25 vacation days.
12. 2 free days for conference/courses + Individual Training Budget.

1. 1️⃣ A 30-minute consultation with Talent.
2. 2️⃣ First 30-minute technical interview.
3. 3️⃣ Practical challenge to take home + 1-hour presentation.