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Satalia Logo Satalia · IT - Software Development

Data Scientist – Agentic AI

Greece · Job Posted February 13, 2026
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Job Description

We are at a generational moment for technology and AI. The shift from single-model applications to autonomous, collaborative agent systems represents the most significant leap since the introduction of Large Language Models (LLMs). At Satalia, we are not just observing this transformation; we are building it. These are not experimental prototypes; they are production-grade solutions that make a tangible impact for our FTSE 100 clients and WPP agency partners, at enterprise scale. If you have been waiting for the right opportunity to go deep on agentic AI, this is it.

Job Responsibility

  • Design and deliver production-grade agentic systems, from multi-agent orchestration to the AI services and models that power them
  • Assess fit of agentic solutions per use case, being intentional in system design
  • Design the most suitable orchestration pattern per use case
  • Evaluate and recommend the best suited agent development framework
  • Engineer multi-step agent workflows that are reliable, auditable and modular, supporting both linear and non-linear control flows
  • Implement agent memory and state management systems
  • Optimise context assembly for each agent interaction
  • Evaluate and select the most appropriate foundation models, embeddings and context-specific model variants
  • apply fine-tuning or adaptation where needed
  • Implement guardrails to ensure operation within ethical, legal, brand boundaries
  • Build services for agent use, including ML models, GenAI and task-specific APIs
  • Process multi-modal data using appropriate embeddings and vector retrieval
  • Build, evaluate and maintain robust RAG and / or GraphRAG pipelines
  • Implement fallback strategies (e.g., retries, backup tools, escalation, safe exits)
  • Build and integrate MCP servers to expose and consume data and AI services
  • Use Google's A2A protocol to support independent agent communication, designing composable service boundaries and appropriate integration patterns
  • Containerise applications (Docker)
  • Apply AgenticOps practices, including evaluation, observability, guardrails, security, performance optimisation, CI/CD, versioning, rollback, drift detection
  • Design and implement testing strategies for non-deterministic behaviour
  • Stay abreast of the latest AI research trends and integrate them into our products
  • Maintain documentation for architectures, APIs and operational procedures
  • Communicate progress, blockers, technical approaches, challenges and potential solutions to technical colleagues and non-technical stakeholders.

Requirements

  • Educational background in Computer Science, Data Science, or similar
  • Professional experience in Data Science, AI/ML Engineering, Software Engineering, or related technical roles
  • High proficiency in Python and working knowledge of SQL
  • Experience building API services using FastAPI, Flask or similar
  • Experience with containerisation, cloud platforms and CI/CD
  • Experience with AgenticOps best practices, including evaluation, observability, safety guardrails, security, performance optimisation
  • Experience designing and building complex multi-agent systems using at least one of the major agent frameworks (e.g. ADK, AutoGen, LangGraph)
  • Understanding of agent memory and state management patterns
  • Familiarity with MCP servers
  • Quality-first, test-driven mindset with focus on automated testing
  • Deep understanding of LLMs, foundation models and embeddings
  • Experience with structured and multi-modal data processing
  • Experience building and evaluating production-grade RAG systems
  • Practical experience with machine learning / deep learning models
  • Excellent communication skills with technical / non-technical audiences
  • Strong documentation and knowledge-sharing practices.

Nice to have

  • Postgraduate degree in Computer Science, Data Science or similar
  • Experience with Google's Agent Development Kit (ADK)
  • Experience with Google's A2A protocol and agent coordination layers
  • Strong understanding of ML / DL algorithms and full model lifecycle experience
  • Experience with fine-tuning or model adaptation techniques
  • Experience with GraphRAG systems
  • Understanding of authentication/authorisation and API security
  • K8s familiarity for cloud-native design and debugging.

What we offer

  • enhanced pension
  • life assurance
  • income protection
  • private healthcare
  • Remote working
  • Truly flexible working hours
  • Generous Leave - holiday plus bank holidays and enhanced family leave
  • Annual bonus
  • Impactful projects - focus on bringing meaningful social and environmental change
  • People oriented culture - wellbeing is a priority
  • Transparent and open culture - you will be heard
  • Development - focus on bringing the best out of each other
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