Senior Data Engineer

Overview
TITAN Group
is looking for an experienced
AI Architect
to act as the global lead and subject matter expert for all AI related initiatives (including GenAI) across the organization. The position will be based at TITAN’s headquarters in Athens, Greece.

This role needs to operate both at the strategic architecture level and at the hands-on AI engineering and implementation layer. It sits at the intersection of business transformation and technical delivery.

The role will implement scalable AI solutions by designing the architecture and the orchestration layer of AI and agentic solutions, implement the necessary AI platforms in collaboration with the Technology, Cybersecurity, Governance, Data Management and Digital Solutions units of the Group, , oversee end-to-end AI project delivery, operate the platforms in alignment with operational and financial targets of the Group, and ensure responsible and compliant AI adoption aligned with business strategy.

Responsibilities

• Design an overall AI orchestration architecture, including the blueprint for the respective AI platforms and their integration with the overall IT and digital technology stack of the Group.
• Design AI pipelines including RAG architectures, LLM orchestration layers, agent workflows, and evaluation frameworks.
• Translate business and regulatory requirements into secure, scalable, production-grade technical blueprints.
• Define reference architectures, reusable patterns, and engineering standards for AI adoption at scale.
• Vendor and Platform Evaluation.
• Write production-quality Python and related frameworks.
• Integrate and validate MVPs, PoCs, and deploy acquired AI solutions.
• Implement agentic AI systems: tool use, multi-agent orchestration, MCPs memory management, and autonomous decision workflows.
• Deploy and integrate AI components into enterprise applications, APIs, data platforms, and third-party systems.
• Design observability stacks: prompt monitoring, model response tracking, vector retrieval quality, agent execution workflows.
• Manage model lifecycle: versioning, drift detection, evaluation-driven development, retraining pipelines and address bias, fairness, and transparency in AI systems.
• Optimize inference cost, latency, and throughput at scale.
• Establish and enforce AI governance frameworks: auditability, data privacy, model risk management.
• Ensure compliance with enterprise security standards (IAM, encryption, regulatory requirements).
• Develop methodologies and implement tools for monitoring and optimizing cost of AI usage at the Group (cloud compute, LLM tokens, licensing etc) in close collaboration with the FinOps unit.
• Drive responsible AI practices across multi-team, multi-vendor environments.
• Act as a trusted technical advisor to senior leadership and business units.
• Mentor engineers and architects; foster a culture of engineering excellence.
• Lead knowledge-sharing, community building, and internal AI enablement initiatives.
• Stay ahead of the AI landscape and introduce new tools, frameworks, and patterns to elevate team capability.

Qualifications
Candidate Profile
Technical Skills

• Deep expertise in AI and LLM architecture patterns: AI engineering and orchestration, RAG, fine-tuning, prompt engineering, multi-model strategies.
• Hands-on with orchestration frameworks: LangChain, LangGraph, LlamaIndex, Semantic Kernel.
• Experience with foundation model evaluation, vector databases, and embedding strategies.
• Knowledge of both open-source and commercial LLM ecosystems.
• Knowledge of APIs. MCPs & Integration technologies and protocols.
• Knowledge of containerization and orchestration tools.
• Familiarity with main AI coding languages (ML and GenAI/LLM frameworks and Cloud Platforms AI ecosystems and toolkits, with an emphasis on Azure.
• Knowledge of how AI influences design and operation of Group’s Data Architecture (eg SQL, vector databases, data pipelines, APIs, event-driven systems).
• Expertise in AI and GenAI agents governance including security: IAM, encryption, enterprise governance, compliance controls.

Experience & Additional Qualifications

• Bachelor’s Degree (postgraduate degree preferred) in relevant fields (computer science, AI Engineering, or other STEM-related field).
• Minimum of 5 years’ experience in a relevant position.
• Proven experience in implementing and operating AI architectures and orchestration layers in complex environments. Experience in industrial environments integrating OT and IT data and operational improvement AI use cases would be a plus.
• Demonstrated experience managing complex strategic initiatives, incl. in multinational environments.
• Excellent written and verbal communication skills in English, with the ability to communicate effectively with senior stakeholders in multinational environments.
• Passion for coaching and developing early-career professionals, supporting capability building and knowledge sharing within the team.
• Collaborative mindset with excellent stakeholder management, influencing, and teamwork skills.
• Willingness to travel internationally across TITAN Group's Business Units and operations, as required.
• Military obligations fulfilled (where applicable).

wherewework.gr εκμέρους της:

ManpowerGroup Greece
🚀 Are you a Backend Developer with experience in PHP and Laravel who enjoys building and improving integrations, and scalable backend systems?

🌍 Would you like to work on backend services that connect with external platforms, booking systems, and mobile applications?

🤝 Are you excited by the opportunity to collaborate with both technical and commercial teams while helping shape the architecture of a growing platform?

ManpowerGroup Greece
, on behalf of our client, is seeking for a
Back End Developer with strong skills in Laravel
Our client is an innovative travel-tech company that offers cultural and immersive experiences for museums, cities, and heritage sites through mobile apps and audio guides.

📌
Location: Athens City Center – Easily accessible by Metro
📍 Working Model: Hybrid (3 days in the office 2 days from home)
🖋️ Reporting to: Head of IT
What will you do:

As a
Back End Laravel Developer
, you will join the IT Team and contribute to the evolution of their core platform and services. This role goes beyond feature development and includes ownership of backend systems, contribution to architectural decisions, and active involvement in API integrations and system scalability. The core platform is currently a monolithic system, and its evolution into scalable, modular services is already underway. This role will play an active part in this ongoing refactoring effort and broader system transformation.

More specifically you will:

• Design, develop, and maintain backend services using Laravel
• Take ownership of features and services, from design to deployment
• Contribute to the evolution of the core platform into modular subsystems
• Work on API integrations with external/internal partners and systems
• Contribute to documentation, monitoring and troubleshooting
• Write and maintain unit tests and automated testing
• Participate in CI/CD processes and deployment workflows
• Help maintain and improve the overall architecture of the ecosystem
• Ensure code quality, performance, and scalability

Requirements
:

• Degree in Computer Science, Engineering, Mathematics, or a related field.
• 4+ years of experience in backend development with PHP / Laravel
• Strong understanding of APIs (REST) and system integrations
• Solid knowledge of database design and performance (MySQL)
• Experience working with complex or legacy systems
• Ability to take ownership and work independently
• Experience with Docker
• Familiarity with CI/CD pipelines
• Familiarity with Git-based workflows
• Experience debugging and maintaining production systems
• Ability to communicate technical concepts clearly to internal teams, external partners, and non-technical stakeholders
• Excellent command of Greek and English languages

Any experience in the following will be considered an asset

• Experience with third-party integrations (APIs, webhooks)
• Familiarity with AWS or cloud environments
• Experience in refactoring monolithic systems
• Exposure to event-driven architectures
• Experience with monitoring and logging tools
• Experience integrating with booking systems, ticketing platforms and SaaS platforms.

Benefits

• Competitive compensation package
• Private health insurance
• Healthy work–life balance and respectful working hours
• Ηybrid Working model
• Professional development opportunities in a dynamic environment
• Modern and friendly work environment

👥 Recruitment Process:

• If you’re interested in this role, feel free to apply directly. Our consultants will contact the candidates who meet the role requirements to arrange an interview.
• As for the next step, there will be 2 more interview rounds with the Hiring Manager either online or in person.

For any questions regarding this opportunity, please contact directly Anna Georgiou at the following email: ageorgiou@manpowergroup.gr

#Empoweringtalent #WebelieveinTalent #ManpowerGroupGreece

We are looking for a

Senior Backend Engineer

to help

maintain

and evolve

our

backend platform. Our current backend is built on a

Node.js

-based framework

backed by an

Oracle

database (hosted on

AWS RDS

) and supports

React

single-page

applications

. Our infrastructure runs on

AWS EC2

.

While this role includes contributing to ongoing feature development, a key responsibility will be helping guide the

transition toward a more modern backend architecture and framework

. This is a hands-on role with meaningful influence

over

backend design, technical direction, and long-term maintainability.

RESPONSIBILITIES

• Design, develop, and

maintain

backend services and APIs

• Work within an existing Node.js backend, improving stability, performance, and maintainability

• Deploy and manage backend services on AWS EC2

• Contribute to planning and executing the migration to a modern backend

framework

• Collaborate closely with frontend and full-stack engineers on end-to-end

feature delivery

• Define and apply backend architecture patterns, API design standards, and

best practices

• Work with AWS RDS (Oracle, PostgreSQL) to ensure data integrity,

performance, and

scalability

• Evaluate application health and performance using AWS CloudWatch or similar

tooling

• Participate

in code reviews and

provide

technical guidance on backend-related

topics

REQUIRED QUALIFICATIONS

• Strong experience as a backend engineer working on production system

• Solid experience with Node.js backend development and modern backend

framework

s

• Strong SQL skills and experience with relational databases (Oracle, PostgreSQL)

• Experience with AWS infrastructure, particularly EC2 and RDS

• Understanding of cloud networking fundamentals (VPCs, security groups,

load balancers)

• Familiarity with authentication, authorization, and backend security best

practices

NICE TO HAVE

• Experience modernizing or incrementally migrating backend platforms

• Deeper AWS experience (IAM, CloudWatch, ALB, Parameter Store/Secrets Manager)

• Exposure to CI/CD pipelines and infrastructure-as-code (Terraform,

Cloud Formation, or CDK)

• Experience mentoring engineers or acting as a technical lead

ARE
YOU
READY
to
step
up
to
the
New
and
take
your
technology
expertise
to
the
next
level?
Through unmatched industry experience, leading technologies from our ecosystem partners and startups, and the largest delivery network in the world, we provide a powerful range of capabilities that can be tailored to our client’s most complex business needs. With over 100 innovation hubs deployed around the world, we help clients continuously innovate at speed and at scale so they can outpace their peers. You will bring innovation, intelligence and industry experience together with the newest technologies to help clients innovate at scale and transform their businesses.

Technology
is one of four services–the others are Strategy and Consulting, Interactive and Operations.

WORK YOU’LL DO
As a Senior .NET Developer, you will assist in the development, implementation and management of technology-based business solutions to improve our clients’ delivery approach.

Responsibilities:

• Design & Development of cloud native solutions with modern, domain and event driven methodologies

• Design & Development of Restful Web APIs with Microservice-based Architecture

• Design & Development of scalable low latency distributed applications

• Assisting in analysis and design of standard development life-cycle process (CI/CD, Test Automation, Code Quality and Performance Test)

• Supporting the technical design process by participating in the analysis of technical and business application requirements

• Assisting in implementing analysis that will identify requirements related to people, processes and technology and participating in execution and documentation of tests

• You will contribute to our interdisciplinary team in an international environment, in close cooperation with product owners, project managers, testers and architects.

• Team leading skills are a plus

WHO WE´RE LOOKING FOR?

• Bachelor's degree in Computer Science, Information Systems or other relevant degree

• At least 5 years of similar experience

• Very good programming skills: C# .NET, .NET Core, SQL, LINQ

• Knowledge and experience on DevOps Tools: GIT, Azure DevOps etc.

• Knowledge in test automation, continues CI/CD and code review (Nice to have)

• Advanced understanding of RESTful API design concepts and the JSON format

• Understanding of agile methodology principles

• Ability to work creatively and analytically in a problem-solving environment

• Solid troubleshooting skills

• Team player

WHAT´S IN IT FOR YOU?

• Competitive salary and benefits, including but not limited to: life/health insurance, performance based bonuses, monthly vouchers, company car (depending on management level), flexible work arrangements, employee share purchase plan, TEA Accenture, parental leave, paid overtime (if needed) and various corporate discounts

• Continuous hard and soft skills training & development through global platforms & local academy

• Career coaching and mentorship to help you manage your career and develop professionally

• Ongoing strengths and skills based evaluation process

• Various opportunities to develop your career across a spectrum of clients, industries and projects

• Diverse and inclusive culture

• Corporate citizenship initiatives (access to volunteering opportunities, charity work etc.)

• Under our Brain Regain initiative, extra relocation benefits may apply

To learn more about Accenture, and how you will be challenged and inspired from Day 1, please visit our website accenture.com/gr-en/.