Full-Stack Software Developer (AI Integration & Prompt Engineering)

What Impact will you make?

Full-Stack Software Developer (AI Integration
& Prompt Engineering) @ Deloitte Competence Center

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

Are you ready to work on international projects for industry-leading clients around the world and elevate your tech consulting 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

Technology & Transformation

Our
Technology & Transformation teams empower organizations to navigate the
future through technology-driven business transformation. Combining deep
industry knowledge with cutting-edge technology, we deliver tailored
solutions that drive innovation, enhance efficiency, promote cybersecurity, and
foster sustainable growth.

#AboutYourRole

This role is designed
for professionals who go beyond writing code—individuals who can understand
complex business challenges, critically evaluate solutions, leverage emerging
technologies, and accelerate the delivery of impactful digital products. We are
seeking adaptable, full-stack engineers who are comfortable working across
different technology layers, embracing new tools, and pioneering the
integration of Generative AI and prompt engineering methodologies into the
daily development lifecycle to optimize workflow efficiency while maintaining
high standards of quality, security, and maintainability.

As a Full-Stack
Software Developer (AI Integration & Prompt Engineering), you will:

• Design, develop, and deliver
  scalable, secure, and high-quality end-to-end software solutions.


• Take ownership of full-stack
  technical workstreams and contribute to end-to-end project delivery.


• Collaborate with architects,
  product owners, designers, and fellow engineers to solve complex business
  problems.


• Leverage AI-assisted
  development tools responsibly to 8x personal productivity, accelerate
  delivery velocity, and enhance code quality.


• Develop, test, and refine
  advanced system prompts and context-sharing strategies to automate
  repetitive development workflows and enhance code generation accuracy.


• Apply critical thinking to
  challenge assumptions, assess trade-offs, and critically review/audit
  AI-assisted code outputs to ensure compliance with architectural
  standards.


• Contribute to architecture
  discussions, technical decision-making, and solution design across both
  frontend and backend systems.


• Foster a culture of
  collaboration, AI literacy, and continuous learning.


• Drive engineering excellence
  through code reviews, database optimization, testing practices, and DevOps
  principles.

#OurRequirements

We are interested in
professionals who combine strong full-stack technical expertise with deep
curiosity, adaptability, and an AI-forward growth mindset.

Key Qualifications

• A Bachelor’s/Master’s Degree in
  Computer Science, Information Technology, Engineering, Mathematics, or a
  related field.


• 1–4 years of
  professional full-stack software development experience.


• Solid grasp of backend logic,
  API design, database management, and modern frontend ecosystems (e.g.,
  JavaScript, TypeScript).


• Demonstrated proficiency in
  interacting with LLMs, including an understanding of advanced prompting
  techniques, context window management, and mitigating model
  hallucinations.


• Knowledge of Communication
  Protocols and data formats (e.g., REST, HTTP, JSON).


• Knowledge of Relational
  Databases (e.g., MySQL, PostgreSQL, Microsoft SQL).


• Strong analytical
  problem-solving skills with the ability to diagnose when an AI-generated
  solution is optimal versus when a traditional architectural approach is
  required.


• Excellent communication and
  stakeholder management capabilities, with a focus on documenting prompt
  configurations and sharing AI-driven best practices.


• Ability to work effectively in
  agile and multidisciplinary teams.


• Strong interpersonal and
  communication skills in Greek and English is a must.


• Curiosity, critical thinking,
  and continuous improvement mindset.

Bonus Qualifications

• Practical experience
  integrating LLM APIs (e.g., OpenAI, Anthropic, Gemini) directly into
  production software.


• Familiarity with Vector
  Databases, Embeddings, or Retrieval-Augmented Generation (RAG)
  architectures.


• Experience working fluidly
  across multiple technology stacks and cloud infrastructures automated via
  AI-driven scripts.


• Strong architectural thinking
  and the ability to connect technical decisions with AI-driven workflow
  optimization.

#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

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

#AboutDeloitte

#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.

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

This
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Business Consultants, Deloitte Certified Public Accountants Societe Anonyme and
Deloitte Alexander Competence Center Single Member Societe Anonyme of Business
Consultants.

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Certified Public Accountants Societe Anonyme, a Greek company, registered in
Greece with registered number 0001223601000 and its registered office
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Alexander Competence Center Single Member Societe Anonyme of Business
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