Dr. Santhoshkumar

Senior ML Engineer | Senior Data Scientist


Professional Summary

I design and deliver reliable AI systems that solve complex business problems at enterprise scale. My expertise lies in building semantic search, retrieval-augmented generation (RAG), and MLOps platforms that improve customer experience while meeting strict requirements for scalability, latency, governance, and operational reliability.

At Eurowings (Lufthansa Group), I have designed and delivered enterprise AI platforms that contributed to an 18% reduction in customer support calls, a 45% improvement in search satisfaction, and significantly accelerated machine learning deployment through standardized MLOps practices.

My background combines 14+ years of software engineering, a Ph.D. in Machine Learning, and extensive hands-on experience building AI systems on Azure and Databricks. I enjoy turning ambiguous business requirements into measurable, production-ready AI solutions.

Current Focus: LLM • RAG • AI Agents • Semantic Search • MLOps & LLMOps • AI Platform Engineering

Selected Enterprise Projects

ProjectBusiness Impact
Enterprise Semantic Search Platform110% satisfaction improvement (42% → 90%), achieved 91% recall@10, 99.3% latency reduction (6s → 40ms P99), €420K annual savings (18% fewer support calls)
Enterprise RAG Customer Support AssistantImproved customer self-service through trustworthy, citation-backed AI responses
Enterprise MLOps PlatformReduced ML deployment cycles from weeks to hours through standardized CI/CD and governance
Forecasting & Personalization PlatformImproved business planning through automated forecasting and recommendation pipelines

Professional Experience

Senior ML Engineer | Senior Data Scientist

Eurowings Digital GmbH (Lufthansa Group)

July 2022 – Present | Europe (Remote)

  • Led end-to-end machine learning initiatives across aviation and e-commerce domains.
  • Designed scalable ML pipelines from data ingestion to production deployment.
  • Developed AI and LLM-powered solutions for forecasting, personalization, recommendation engines, and intelligent search systems.
  • Architected time-series forecasting, regression, and XGBoost models for business planning and optimization.
  • Built Retrieval-Augmented Generation (RAG) solutions for context-aware search experiences.
  • Developed AI agents and virtual assistants for customer support and enterprise knowledge management.
  • Implemented MLOps and LLMOps pipelines using Azure Databricks and cloud-native technologies.
  • Defined AI strategy and served as technical lead for customer-facing AI initiatives.
  • Represented the organization in aviation-focused hackathons and conferences.
  • Optimized production AI systems through monitoring, observability, and performance tuning.

Impact & Achievements

  • Improved key business KPIs (CSAT, AOV) by 15–30% through machine learning solutions
  • Increased forecast accuracy by over 20%
  • Improved conversion rates by 10–25% through personalization and recommendation systems
  • Reduced manual operational effort by up to 60% through ML(LLM)Ops automation
  • Reduced inference latency by 25% through model optimization and infrastructure scaling
  • Improved user engagement, personalization, and revenue through multi-agent AI architectures

Technologies

Frameworks: PySpark • PyTorch • Scikit-learn • NLTK • SpaCy • Theano • MLflow • Git • Docker • Kubernetes
Cloud & DevOps: Azure Databricks • Microsoft Azure • Azure AI Search • Azure Container Apps • AWS EC2 • AWS SageMaker • CI/CD Pipelines • MLOps • LLMOps

Senior Consultant (SC2)

Hitachi Vantara (Hitachi Data Systems)

July 2020 – June 2022 | Pune, India

  • Contributed to enterprise data analytics initiatives, delivering analytics solutions for global customers.
  • Led cross-functional teams across analytics and machine learning models, ensuring successful project delivery within scope and timelines.
  • Successfully delivered enterprise analytics solutions for global customers with strong emphasis on quality and stakeholder collaboration.

Technologies

Java • AWS • AWS EC2 • Scikit-learn • ML Models • Adobe Experience Manager (AEM)

Team Lead

Relevance Lab

April 2016 – July 2020 | Bangalore, India

  • Led a team of 10+ professionals across project planning, execution, and delivery.
  • Coordinated stakeholder communication and mentored team members to ensure consistent delivery quality.
  • Ensured quality standards and delivery timelines were consistently met across multiple concurrent projects.

Technologies

Java • Kafka • Docker • AWS • AWS S3 • AWS EC2

Associate Technology L2

Sapient

September 2014 – April 2016 | Bangalore, India

  • Developed web applications using Adobe Experience Manager (AEM), delivering enterprise digital experience platforms.
  • Built backend services with Java and front-end solutions with JavaScript, HTML, and CSS.
  • Contributed to enterprise digital experience platform delivery for global clients.

Technologies

Java • AWS • Adobe Experience Manager (AEM) • JavaScript • HTML • CSS

Programmer Analyst

Cognizant

December 2012 – August 2014 | Chennai, India

  • Developed enterprise Java applications and web services for global enterprise clients.
  • Built scalable backend systems and contributed to full-stack development projects.
  • Gained foundational experience in enterprise software development, establishing the technical foundation for later engineering leadership roles.

Technologies

Java • AWS • Adobe Experience Manager (AEM) • Web Services


Education

Ph.D. in Information Technology

Vellore Institute of Technology (VIT), India

2014 – 2020

Research Focus

Machine Learning research on rumor control in online social networks using neural networks and bio-inspired algorithms. Published multiple papers in Scopus-indexed journals.

Master's Degree in Software Engineering

Vellore Institute of Technology (VIT), India

2007 – 2012

Advanced study in software engineering, algorithms, and system design.


Professional Certifications

Academy Accreditation - Generative AI Fundamentals

Databricks

Issued May 2026 • Credential ID: 182259131

Working Effectively with Stakeholders

Google

Issued Mar 2026 • Credential ID: RUCTG2BDI44Q

Deep Learning Specialization

Coursera

Mathematics for Machine Learning Specialization

Coursera

Oracle Certified Java Developer

Oracle

Adobe Certified AEM Development Expert

Adobe


Research & Publications

  • A Parallel Neural Network Approach for Faster Rumor Identification in Online Social Networks

    International Journal on Semantic Web and Information Systems (2019)

  • A Bio-inspired Defensive Rumor Confinement Strategy in Online Social Networks

    Journal of Organizational and End User Computing (2020)

  • Additional publications in Springer proceedings and international journals covering deep learning, rumor detection, and intelligent systems.


Core Technical Skills

Enterprise AI Systems

Semantic Search • Retrieval-Augmented Generation (RAG) • Hybrid Retrieval (BM25 + Vector Search) • Vector Databases • LLM Applications • Prompt Engineering • Agentic AI • AI Evaluation • Search Relevance

Machine Learning & MLOps

Python • PyTorch • Scikit-learn • XGBoost • Prophet • MLflow • Unity Catalog • Feature Store • Model Monitoring • Experiment Tracking • CI/CD for Machine Learning

Cloud & Platform Engineering

Azure • Azure Databricks • Azure OpenAI • Azure AI Search • Kubernetes • Docker • FastAPI • REST APIs • Microservices

Data Engineering

Feature Engineering • Data Pipelines • ETL • Data Validation • Model Deployment • Batch & Real-time Inference


Professional Interests

Production AI Reliability • Retrieval Evaluation • Enterprise Search • Cost-efficient LLM Systems • AI Platform Engineering • Technical Mentoring • Applied AI Architecture

Last Updated: July 2026