Full Stack AI Developer - Tax Technology Consulting

Are you looking for an opportunity in Thessaloniki that offers you a hybrid working model?

Are you ready to work on large scale projects for industry-leading clients around the world and elevate your career to an international level?

If so, check below for more info about this career opportunity!

You bring passion, we bring opportunities!

#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 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. 

#YourServiceLine

Tax & Legal

As global forces fundamentally shift how the tax function operates, tax leaders must become strategic advisors. We collaborate closely with our clients, connecting them to expertise, capabilities, technology, and innovative ideas that enhance agility, enabling them to lead their businesses through complexity with confidence. KBVL, member of the Deloitte Legal international network, is an independent law firm registered with the Athens Bar, that offers legal services aligned with clients’ key business objectives.

#YourRole

As an Analyst/Consultant in our Tax Technology Consulting team, you will join an engineering team that builds AI-enabled applications for professional services projects. The role is open to recent graduates as well as engineers with up to 2 years of professional experience, in development, consulting, or a related technical role, who want to grow into AI product engineering.

This is a broad, hands-on role: you will work across the user interface, backend services, data, and AI integrations, and touch testing, deployment, and requirements along the way. You will be supported by experienced engineers who will onboard you, assign scoped work, and review your code, while you progressively take ownership of features and projects. Your seniority within the grade will reflect your experience and what you demonstrate.

Our stack includes Angular and TypeScript on the frontend, Python and FastAPI on the backend, relational and document databases, and cloud services with LLM and agent tooling. You do not need to know all of it: we are looking for strong fundamentals and the drive to learn the rest.

#KeyResponsibilities

• Build full stack features end to end, from accessible, responsive Angular interfaces to Python/FastAPI APIs, business logic, and data access
• Integrate LLM APIs, retrieval (RAG), and agent or tool-calling workflows into production applications
• Work with business and technology stakeholders to turn requirements into scoped technical tasks
• Write and maintain automated tests and clear technical documentation for the code you deliver
• Contribute to deployment and operations tasks such as containers, CI/CD pipelines, and cloud configuration
• Use Git, pull requests, and code reviews to collaborate, and act on feedback from senior engineers
• Investigate defects, explain root causes, and propose fixes
• Learn quickly, share what you learn with the team, and take on more ownership and less supervision over time

#RequiredSkills

To qualify for the role, you must have:

• A Bachelor’s Degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience.
• Between 0 - 2 years of professional experience in software development, consulting, or a technical role; internships, thesis work, and substantial personal projects count.
• A working foundation in Python and/or TypeScript, and willingness to become productive in both.
• Understanding of web applications, REST APIs, and databases.
• Genuine interest in building with LLMs and AI agents, shown through a project, coursework, or work experience.
• Ability to explain the code you have written and the decisions behind it.
• Willingness to write tests, take feedback, and learn quickly across the whole stack.
• Strong communication skills in English and Greek.

#PreferredSkills

• Experience with Angular, React, FastAPI, Django, Flask, or a similar framework.
• Hands-on experience with LLM APIs (Azure OpenAI, OpenAI, or equivalent), prompt engineering, or frameworks such as LangChain or LangGraph.
• Familiarity with RAG, embeddings, and vector search.
• Experience with SQL or NoSQL databases such as PostgreSQL or MongoDB.
• Familiarity with Git, Docker, CI/CD, automated testing, or cloud platforms (Azure preferred).
• Consulting or client-facing project experience.
• A GitHub portfolio or project you would like to discuss.

#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.

🌴Extra days of annual leave.

⚕Private medical health insurance plan.

💳 Ticket restaurant card.

? Exclusive Discounts to several retail providers, restaurants and others.

📱 Mobile phone.

🍏 Fresh fruits and unlimited coffee everyday at our offices.

Please note that all the well-being benefits mentioned above are subject to annual review.

About Deloitte

#OurServices

Deloitte offers integrated services that include Audit & Assurance, Tax and Legal, Strategy-Risk & Transactions Advisory, and Technology & Transformation. 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 Italy 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.

#OurPurpose

We are led by a purpose, to make an impact that matters with clients, people and society. This purpose defines who we are and what we stand for. It's not about being the biggest. It’s about being the first choice for the largest and most influential clients, and the first choice for the best talent.

#OurValues

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.

#OurTalentExperience

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, PAEGA Building, Land Port Zone of the Port of Thessaloniki, 54626 Thessaloniki, Greece, are all companies of the Deloitte Central Mediterranean S.r.l. (“DCM”) geography. DCM, a company limited by guarantee registered in Italy with registered number 09599600963 and its registered office at Via Santa Sofia no.28, 20122, 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.

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Deloitte is a leading global provider of audit and assurance, consulting, 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 470,000 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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