senior gen ai & prompt engineer @ thessaloniki

Our Cloud Strategy and architecture practices supports our customers in various projects, enabling them to understand and adopt the most advanced Generative AI solutions. We specialize in identifying and implementing AI-driven architectures that support the development and deployment of intelligent, cloud-native applications.

Through our services, we help our customers to create safe and reliable innovations that guarantee a real competitive advantage in the market:

• GenAI-Native Platform Implementation: We specialize in deploying GenAI-powered applications across software development, integration, and testing, enabling organizations to accelerate the adoption of Generative AI solutions while ensuring robustness, security, and scalability.

• Accelerated AI Capabilities: Our services drive the rapid adoption of Generative AI by integrating advanced AI models into enterprise environments, unlocking new opportunities for automation, content generation, knowledge management, and enhanced decision-making.

• Advanced AI Architectures: Our expertise lies in designing architectures that seamlessly integrate Generative AI models with enterprise systems, enabling a secure, scalable, and compliant AI ecosystem that maximizes business value.

#OurRequirements

Key Qualifications

• Proven experience working with Large Language Models (LLMs) and Generative AI architectures for tasks such as text generation, summarization, translation, code generation, and multimodal AI applications.

• Mastery in designing effective and optimized prompts, leveraging Few-shot learning, Chain-of-Thought (CoT), Retrieval-Augmented Generation (RAG), and Self-Consistency prompting to enhance model performance and contextual accuracy.

• Hands-on experience integrating Generative AI models into enterprise applications, chatbots, virtual assistants, and knowledge management systems using LangChain, LlamaIndex, or similar orchestration tools.

• Strong understanding of LLM inference optimization, model distillation, parameter-efficient fine-tuning (LoRA, QLoRA), and deployment strategies on cloud (AWS, Azure, GCP), on-premises, and edge environments.

• Expertise in embedding models, vector databases, and RAG pipelines to enhance model relevance and contextual understanding.

• Strong experience with LLM APIs (e.g. OpenAI, Anthropic) and open-source model hosting, including running private AI models in secure environments for enterprises.

Bonus Qualifications

• Experience in fine-tuning and adapting foundation models (e.g., GPT, Claude, Gemini, LLaMA) using domain-specific datasets, reinforcement learning (RLHF), and instruction tuning techniques.

• Hands-on experience with Django and FastAPI for building scalable backend services and APIs for Generative AI applications. Experience with React.js for developing interactive AI-powered user interfaces and front-end experiences.

• Familiarity and use of any VCS (e.g., git)

• Experience with Docker and Kubernetes

#YourOpportunity

Deloitte is a worldwide leader in Professional Services with a presence in more than 150 countries and territories. Since 2018, Deloitte has been operating its Alexander Competence Center in Thessaloniki with satellites in the cities of Patras, Heraklion, and Ioannina - which are model hubs of expertise, training, and innovation, specializing in cutting-edge exponential technologies, in which graduates and young professionals undergo immersive experiences, continuous learning, gaining practical insights and hands-on training that empower them to navigate the complexities of the digital landscape.

Deloitte is an ideal working environment for both young and senior professionals who want to take the next step in their careers, offering them a supportive and international working environment that leverages their expertise and potential. Its corporate culture is based on trust and collaboration and ensures diversity and inclusion so that everyone feels part of a great team.

#WhoWeAreLookingFor

Individuals who have a strong will to expand their knowledge of new technologies, a passion to grow within the company and aspirations for career growth. At Deloitte we foster a consultative culture because the best decisions are made in collaboration with others. We approach our work with a collaborative mindset, teaming across businesses, geographies, and skill sets to deliver tangible, measurable, attributable impact. These are not aspirations, but principles that we all commit to today and every day.

#WhatWeOffer

At Deloitte, we know that great people make a great organization. We value our people and offer employees a broad range of benefits:

• Modern hybrid workplace, characterized by flexibility and Smart Working

• Empowered well-being: We provide multiple program offerings to support your well-being needs (flexible working arrangements, extra days of leave, parental allowances)

• Engagement within international large-scale teams and projects, with opportunities to travel for training or client purposes.

• Constant opportunities for learning with unlimited access to internal and external learning platforms and sponsored certificates aligned with business needs and technology trends

• Challenging and innovating environment where personal development and growth are encouraged, always with transparency and trust

• Diverse culture and active communities that enable you to bring yourself to work

• Team Building and Corporate Social Responsibility Activities

• A buddy to support you with your onboarding

• Private medical health insurance plan

• Ticket restaurant card

• Exclusive Discounts to several retail providers, restaurants and others

• Mobile phone

• Fresh fruits and unlimited coffee every day at our offices

Sounds like the sort of role for you? Apply now.

#AboutConsulting

Five core competency areas make up our Consulting service line:

• Strategy, Analytics and M&A

• Customer and Marketing

• Core Business Operations

• Human Capital

• Enterprise Technology and Performance

We exist to solve complex problems

Our consultants are renowned for their straightforward approach to solving some of the world’s largest and most complex business challenges. Each member of our Consulting team is energized by the challenge a seemingly inscrutable problem presents. Our distinctiveness lies in our refusal to accept a problem at face value - we draw on the depth of our shared insight to ask the right questions, and it’s these questions that uncover answers - answers with impact.

We are committed to collaboration

Our role is to unlock potential for growth and innovation. We believe this requires real collaboration – with our own networks and with our clients. It is why we commit to truly getting under the skin of our client’s needs, developing a full appreciation for their environment, goals and ambitions. We are also unafraid to challenge.  In so doing, we build long-term and trusted affinities.

We create long-term, sustainable impact

We often work hand-in-hand with our clients to help find the right solution and to help apply that solution. Our aim is to leave behind ambassadors who are equipped to continue the transformation we began. For us, it is about embedding sustainable change, allowing the impact of our insight to be felt for a long time to come.

#AboutDeloitte

Our services

Deloitte offers Global professional services that include Audit, Risk Advisory, Tax, Consulting and Financial Advisory. Our approach combines insight and innovation from multiple disciplines with global business and industry expertise to help our clients excel anywhere in the world.

We deliver outstanding impact on the reputation and success of our clients, in Greece and globally. In pursuing this we contribute to a sustainable and prosperous society, and are firm believers in the positive impact business can and should have on the world it operates within.

Our Purpose

Our purpose, “To make an impact that matters for our clients, our people and society “- defines who we are and what we stand for. This is not about size; it is about being the first choice. The first choice for the largest and most influential clients and the first choice for the best talent.

Our values

At Deloitte, we foster a collaborative culture where talented individuals can produce their best work. We value innovative thinking, diverse insights and a genuinely distinctive level of customer service through our expertise and professionalism.

We value difference, with respect at the heart of our inclusive culture.

Our talent experience

From day one at our firm, practitioners are part of a community. Our development and career progression framework will help them develop the skills and capabilities to succeed. The wellness of our people and the ability to offer agile working arrangements is at the center of our unique talent experience. We create a workplace that encourages collaboration, creativity, inclusiveness to ensure our staff are supported, encouraged and feel a sense of purpose and meaning in what they do each day.

This document has been prepared by Deloitte Business Solutions Societe Anonyme of Business Consultants, Deloitte Certified Public Accountants Societe Anonyme and Deloitte Alexander Competence Center Single Member Societe Anonyme of Business Consultants. Deloitte Business Solutions Societe Anonyme of Business Consultants, a Greek company, registered in Greece with registered number 000665201000 and its registered office at Marousi Attica, 3a Fragkokklisias & Granikou str., 151 25, Deloitte Certified Public Accountants Societe Anonyme, a Greek company, registered in Greece with registered number 0001223601000 and its registered office at Marousi, Attica, 3a Fragkokklisias & Granikou str., 151 25 and Deloitte Alexander Competence Center Single Member Societe Anonyme of Business Consultants, a Greek company, registered in Greece with registered number 144724504000 and its registered office at Thessaloniki, Municipality of Pylaia - Chortiatis of Thessaloniki, Vepe Technopolis Thessaloniki (5th and 3rd street), are one of the Deloitte Central Mediterranean S.r.l. (“DCM”) countries. DCM, a company limited by guarantee registered in Italy with registered number 09599600963 and its registered office at Via Tortona no. 25, 20144, Milan, Italy is one of the Deloitte NSE LLP geographies. Deloitte NSE LLP is a UK limited liability partnership and member firm of Deloitte Touche Tohmatsu Limited, a UK private company limited by guarantee. Deloitte refers to one or more of Deloitte Touche Tohmatsu Limited (“DTTL”), its global network of member firms and their related entities (collectively, the “Deloitte organization”). DTTL (also referred to as “Deloitte Global”) and each of its member firms and related entities are legally separate and independent entities, which cannot obligate or bind each other in respect of third parties. DTTL and each DTTL member firm and related entity is liable only for its own acts and omissions, and not those of any of each other. DTTL does not provide services to clients. Please see www.deloitte.com/ about to learn more. DTTL, Deloitte NSE LLP and Deloitte Central Mediterranean S.r.l. do not provide services to clients. Please see www.deloitte.com/about to learn more about our global network of member firms. Deloitte is a leading global provider of audit and assurance, consulting, financial advisory, risk advisory, tax and related services. Our global network of member firms and related entities in more than 150 countries and territories serves four out of five Fortune Global 500® companies. Learn how Deloitte’s approximately 460,300 people make an impact that matters at www.deloitte.com. This communication contains general information only, and Deloitte Business Solutions Societe Anonyme of Business Consultants, Deloitte Certified Public Accountants Societe Anonyme and Deloitte Alexander Competence Center Single Member Societe Anonyme of Business Consultants, is not, by means of this communication, rendering professional advice or services. Before making any decision or taking any action that may affect your finances or your business, you should consult a qualified professional adviser. No entity in the Deloitte organization shall be responsible for any loss whatsoever sustained by any person who relies on this communication. Deloitte organization refers to Deloitte Touche Tohmatsu Limited (“DTTL”), its global network of member firms and their related entities collectively.

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