Senior Software Developer @Thessaloniki

What Impact will you make?

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.

We are currently seeking for ambitious team players to become part of our dynamic Regulatory, Data & Reporting team within our Strategy Risk & Transactions Advisory department in Thessaloniki.

#YourServiceLine

Strategy, Risk & Transactions (SR&T) Advisory

Strategy, Risk & Transactions (SR&T) is an end-to-end strategic advisory practice, enabling our C-suite clients to make informed, robust decisions and strategic choices. It integrates the full scale of Deloitte's M&A capabilities, consolidates Climate & Sustainability advisory capabilities, and tightens the connection between strategy development and risk management to assist clients with navigating uncertainty and change.

#AboutYourTeam

The team is a technical engineering team within Deloitte focused on AI assets and software development. We build custom AI SaaS solutions and deliver technical AI projects for clients. We are looking for a Senior Software Developer to join our SaaS product team. You will design, build and maintain production‑grade software and AI‑powered applications, working closely with product owners, developers, data scientists, cloud engineers and business stakeholders. You bring strong hands‑on experience with Python and Azure, a product‑minded approach, and a drive to raise the bar on code quality, security and operational excellence. Our 200+ professionals work in a collaborative culture based on integrity, high impact, mutual commitment and diversity.

You will:

• Design, develop and maintain scalable, resilient, production‑ready applications with clean architecture
• Develop and document APIs and integrations with internal and third‑party services
• Define and uphold coding standards and best practices across the codebase
• Build and ship GenAI features end‑to‑end (LLMs, RAG, agents, prompt engineering) and integrate ML models and data pipelines into production
• Develop cloud‑native solutions on Azure, using services such as App Service, Functions, Service Bus, Event Hub and Azure OpenAI, and containerisation with Docker
• Own and improve CI/CD pipelines (Azure DevOps, GitHub Actions), including automated testing and security scanning
• Apply secure‑by‑design principles and ensure GDPR and data protection requirements are met
• Write and maintain automated tests (unit, integration, end‑to‑end) and monitor performance and reliability using observability tooling
• Collaborate in an agile/Scrum environment, communicate clearly with stakeholders and mentor junior developers while contributing to technical documentation

#AboutYourRole

As a Senior Consultant in our Strategy Risk & Transactions Advisory department, you will play a pivotal role in supporting financial institutions in identifying, assessing, and managing risks that may impact their business objectives. This role offers a unique opportunity to work on diverse projects, collaborating with cross-functional teams and leveraging your expertise to deliver value-added insights.

#OurRequirements

Key Qualifications

• 3+ years of professional software development with production deployments
• Strong Python (packaging, async, testing, performance)
• Hands‑on Microsoft Azure (App Service, Functions, Service Bus, Key Vault, Azure OpenAI, etc.)
• Docker and CI/CD (Azure DevOps and/or GitHub Actions)

GenAI & Data

• Proven experience delivering LLM‑based features to real users (e.g. RAG, agents, prompt engineering)
• Active use of AI‑assisted coding tools (e.g. GitHub Copilot, Cursor, Claude Code)
• Data integration with SQL/NoSQL databases, object storage and external APIs

Quality & Security

• Solid software design principles (SOLID, clean code, design patterns)
• Automated testing (unit, integration, end‑to‑end) as part of normal workflow
• Security awareness (OWASP, secure coding, secrets management, least privilege)
• Observability (structured logging, monitoring, alerting)
• Comfortable working in agile/Scrum, collaborating with product and cross‑functional teams

Your Profile

• You take end-to-end ownership of your work, from design to deployment and monitoring.
• You are proactive, curious and always seeking to improve products, processes and tools.
• You thrive in collaborative, cross-functional teams and communicate clearly with all stakeholders.
• You have a strong security and quality mindset and only consider work done when it is tested, documented and safe to ship.
• You are eager to grow, stay current with AI and cloud, and share your knowledge with others.

Bonus Qualifications

• Experience in SaaS / product environments
• Kubernetes, IaC (Terraform/Bicep), and/or front‑end (React/Angular)
• Experience with Azure DevOps, Jira, Airflow or similar tools

If you're ready to take your career to the next level in a challenging international environment, focusing on continuous learning and dynamic teamwork, both in Greece and abroad, you're ready for Deloitte!

#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 well-being benefits mentioned above are subject to annual review.