Senior Generative AI Engineer

About the Organisation

humani is proud to partner with one of Greece’s leading fintech groups, operating at the dynamic crossroads of technology, intelligence, and financial innovation. They have the reputation of developing sophisticated systems that simplify complexity on a grand scale, enabling organizations to function with transparency while providing real value throughout the credit ecosystem.

A business culture is rooted in a blend of technological ambition, integrity, collaborative spirit, and a heartfelt commitment to continuous growth.

The Mission

In this role, you will play a crucial part in designing, delivering, and scaling the future of agentic AI solutions within our organization. You'll be instrumental in converting intricate data, business logic, and operational processes into intelligent systems that autonomously act, reason, and assist users. As our team expands, you will step into a team leader position, mentoring engineers—regardless of their AI specialization—on the potential of modern LLM capabilities and guiding the development of impactful AI-driven products.

What You Will Do

You will engage with cutting-edge, production-ready GenAI systems with a sense of clarity, autonomy, and ownership. Your exciting responsibilities will include:

Core Engineering

• Integrating LLMs and agentic workflows into our existing platforms to boost capabilities and introduce AI-native features.
• Building and optimizing RAG pipelines, multimodal systems (text, image, audio), and intelligent agents for automation and customer-facing applications.
• Designing, fine-tuning, and deploying generative models—text, embeddings, image, audio, and code—aligned with real business needs.
• Implementing vector-based search using technologies like Weaviate, Pinecone, FAISS, or similar tools to ensure precision, retrieval quality, and scalability.
• Engineering robust prompts, chains, and alignment techniques (RLHF, evaluation loops) to enhance reliability and minimize hallucinations.

Production & Excellence

• Deploying, monitoring, and continuously enhancing GenAI solutions in cloud environments (Azure/AWS/GCP).
• Conducting performance evaluations and optimizing models using techniques such as quantization, distillation, and custom transformer architectures.
• Maintaining comprehensive documentation, contributing to AI development best practices, and engaging in peer reviews.

Leadership & Influence

• Guiding fellow engineers—regardless of their AI expertise—to embrace and understand modern GenAI architectures.
• Cultivating a culture of learning and experimentation within the engineering team.
• Laying the foundation for building and ultimately leading a specialized AI engineering team.

Governance & Compliance

• Ensuring compliance with regulatory standards while supporting the ongoing implementation of the Group’s Anti-Bribery and Corruption Policy.

Requirements

What You Bring

• Degree in Computer or Data Science or Engineering

• 5+ years delivering AI/ML solutions in production.
• 2+ years building GenAI solutions, RAG systems, or agentic workflows.
• Strong grounding in traditional ML methods and modern LLM practices.
• Proficiency in Python and experience with frameworks such as LangGraph or Semantic Kernel.
• Experience with AI services (Azure OpenAI, Azure AI Search, Azure ML) is highly desirable.
• Solid experience with building and deploying APIs and AI agents.
• Excellent communication skills, proactive mindset, attention to detail, and commitment to quality.
• Comfortable working in multicultural and international environments; excellent English.

Nice to Have

• Azure AI Engineer Associate
• Google Cloud ML Engineer
• AWS ML Specialty
• Databricks Generative AI Engineer Associate

Benefits

What the Company Offers

• Competitive remuneration package
• Meal benefits: Ticket restaurant (120 euros x 12).
• Private Health Insurance.
• Mobile phone (with unlimited data program) and laptop equipment.

ABOUT US:

Founded in 2018, HumanI is an Executive Search firm, satisfying the needs of organizations for C-level, Senior and Middle positions, or specialised projects in the Engineering and Software functions. In parallel, through our partnerships we support HR Digital Transformation initiatives and build data analytics to facilitate informed decision making. Our competitive advantage stems from the collaboration of diversified people with backgrounds in HR, Psychology, Coaching, IT and Finance.

Our brand “HumanI”, stands for Human Intelligence, encompassing our belief that no matter how multifaceted, digitally advanced or artificially intelligent a system may seem, it will always be a creation of 𝗛𝘂𝗺𝗮𝗻𝘀. This human aspect and ethical part of our work makes us unique in what we do. Ethical Headhunting; treating our candidates as our true clients, investing time and effort, consulting them on their careers. Supporting our companies as genuine strategic partners, investing in understanding their own internal needs and market trends.

Each person is 𝗨𝗡𝗜𝗤𝗨𝗘 to us. After all, talent resides in deviations; embracing it, is the only way forward.

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