Senior Data Scientist

At KoçDigital, we combine the strengths of Koç Holding to help our clients tackle their most complex digital challenges. Leveraging Advanced Analytics, Generative AI, and IoT solutions, we deliver sustainable and measurable impact across industries.

You will join a constellation of AI-driven teams focused on building real-world, practical outcomes using next-generation AI technologies — from edge analytics to multi-agent systems.

Job Description

We are seeking Senior AI Engineers who are passionate about agentic AI systems, LLM adaptation, and real-world enterprise deployments. This role is both hands-on and research-driven, combining model engineering with system architecture. You will work on large-scale generative AI, data analysis, multi-agent orchestration, and advanced NLP/vision applications powering next-generation enterprise solutions.

Responsibilities

• Design, build, and deploy advanced agentic AI systems, orchestrating LLMs, tools, and workflows using LangGraph, MCP, and agent frameworks
• Implement PEFT/LoRA techniques and optimize LLM/VLM inference using vLLM for production workloads
• Develop next-gen NLP and multimodal solutions: summarization, retrieval-augmented QA, copilots, compliance automation, content generation
• Architect A2A (agent-to-agent) communication protocols for collaborative multi-agent ecosystems
• Build and serve AI solutions via FastAPI, ensuring secure, scalable production deployments
• Create data pipelines for structured, unstructured, and vector databases (SQL, NoSQL, Pinecone, Weaviate, FAISS, Milvus)
• Collaborate with data engineers, product managers, and UX teams to align technical solutions with business goals
• Lead technical knowledge sharing: trainings, mentoring, and best practices
• Evaluate cutting-edge AI research and translate findings into deployable enterprise-grade solutions

Qualifications

Academic & Professional Background

• Degree in Computer Science, Data Science, Engineering, or related fields (MS/PhD preferred)
• 5+ years hands-on AI/data science experience
• At least 2+ years working with LLMs or agentic AI systems

Technical Expertise

• Proven experience fine-tuning and deploying LLMs/VLMs (GPT, LLaMA, Mistral, Gemma, etc.)
• Hands-on experience with OpenAI APIs (chat/completions, embeddings, fine-tuning, tool-calling)
• Practical experience with LangGraph or equivalent agent orchestration frameworks
• Strong background in NLP: summarization, QA, information extraction, clustering, RAG
• Hands-on experience with agentic AI systems (MCP, A2A protocols, tool-calling)
• Familiarity with multimodal AI: text, image, structured data
• Proficiency in FastAPI, Python, PyTorch/TensorFlow, Hugging Face ecosystem
• Experience with SQL/Postgres, NoSQL, and vector databases
• Cloud experience (Azure/AWS/GCP) and containerization with Docker
• Experience in MLOps, data engineering, or knowledge graphs is a plus

Soft Skills

• Ability to translate business needs into measurable AI solutions
• Curiosity, proactiveness, and an impact-driven mindset
• Strong analytical and collaboration skills
• Excellent English communication skills (technical & non-technical)

What we offer

• Akademi Plus – Technical and Personal Development Trainings
• Career opportunities and rotations within Koç Group
• On-campus sports center and Koç Community Sports Club
• Flextra – Flexible benefits package
• Social support payments
• Mobile phone and internet
• TokenFlex digital meal card
• Birthday leave
• The privileged world of being a Koç Group member: Koç Ailem, Koç Akademi, Koç Healthcare