PhD in Machine Learning
VIT, Vellore · 2020 · GPA 9/10
Completed doctoral research on rumor detection and control with deep learning.
Senior ML Engineer at Eurowings Digital GmbH
I architect enterprise AI systems at scale
Dr. Santhoshkumar · Senior ML Engineer
Architecting enterprise AI systems: search, RAG, and MLOps platforms serving millions with 40ms P99 latency
I architect enterprise AI systems at scale. I reduce time-to-production from months to days through reusable ML infrastructure, turn research insights into enterprise systems, and own end-to-end delivery from requirements through operations.
Search & RetrievalLLM SystemsProduction MLOpsDatabricksAzure
Eurowings Digital GmbH • Europe | Remote
Production AI Leadership
Senior ML Engineer / Data Scientist
Current Focus
Search, LLMs, and MLOps
Production
13+
Years
2012-2016: Backend (Java) Engineering → Team Lead
2016-2020: PhD (ML) + Team Leadership
2020-2026: Enterprise AI Systems at scale in Lufthansa Group
4
Featured Production Systems
Recent flagship projects: Search, RAG, MLOps, Forecasting. 10K QPS, 2M embeddings, 40ms P99 latency.
Proven Impact
- 18% support call reduction = $420K annual savings
- 45% search satisfaction improvement (62% → 90%)
- 98% deployment time reduction (weeks → hours)
Featured Projects
Production AI systems built for enterprise scale. From search to RAG to MLOps infrastructure.
Impact at Scale
Production systems, measurable outcomes, and engineering ownership across search, LLM applications, and platform delivery.
13+
Years Experience
4
Production AI Systems
3
LLM Applications
Enterprise
MLOps Projects
Leadership and Credibility
Senior-level signals from career progression, doctoral depth, and enterprise ownership.
4 Years Team Leadership
Team Lead, AEM Development · 2016-2020
Led software delivery teams while completing PhD research in parallel.
13+ Years in Industry
From Java/AEM to Production AI
Progressed from enterprise software engineering to ownership of production AI systems.
Selected Production Initiatives
Four production systems that show how I work across retrieval, LLM applications, platform engineering, and applied machine learning.
4-month production rollout
AI-Powered Semantic Search
Eurowings · Lufthansa Group
- •Keyword-only search caused poor retrieval for natural-language questions, multilingual queries, and support intent inside booking journeys.
- •18% reduction in customer support calls
- •45% increase in search satisfaction
Semantic SearchRAGVector SearchGPT-4LlamaIndex
3-month production rollout
Enterprise AI Customer Support
Eurowings · Lufthansa Group
- •Customers repeatedly asked about baggage, cancellations, refunds, check-in, and special assistance, overloading support channels.
- •Reduced repetitive support workload
- •Improved first-response speed
RAGGPT-4LlamaIndexConversational AIAzure
6-month platform build
Enterprise MLOps Platform
Eurowings · Lufthansa Group
- •Teams deployed models inconsistently, with weak governance, fragmented monitoring, and no reproducible delivery path.
- •Reduced deployment time from weeks to hours
- •Standardized delivery across ML teams
MLOpsDatabricksMLflowUnity CatalogAzure DevOps
5-month production rollout
AI Forecasting & Personalization
Eurowings · Lufthansa Group
- •Manual forecasting and non-personalized campaigns created planning inefficiencies and weaker customer targeting.
- •Improved forecast accuracy for planning workflows
- •Raised campaign targeting quality
XGBoostProphetCollaborative FilteringTime Series
Speaking and Credentials
Teaching, invited talks, and certifications that reinforce technical leadership.
International Faculty Development Program (6-days)
Gopalan College of Engineering and Management (GCEM) • 2025-02-03 to 2025-02-08 • Bengaluru, India
Delivered NLP and data science sessions for faculty, with research directions and live demos.
Guest Lecture on Professional Software Development Using Java
School of Information Technology and Engineering • 2020-02-05 • VIT, Vellore
Presented software engineering process, tools, and applied Java practices.
Conference Proceedings talk on Rumor Control
INDIA-2018 • 2018-07-20 • Mauritius
Presented pulse-vaccination based rumor control research.
Tech Stack
Capabilities organized by system responsibility rather than a flat keyword list.
Generative AI & LLMs
GPT-4Azure OpenAILlamaIndexLangChainRAGPrompt EngineeringVector SearchSemantic Search
ML Engineering
PythonPyTorchTensorFlowScikit-learnXGBoostMLflowModel Serving
MLOps & Platform
DatabricksAzure MLDockerKubernetesCI/CDModel MonitoringUnity Catalog
Data & Search
Vector DatabasesAzure AI SearchElasticsearchSQLNoSQLData Pipelines
Cloud & Infrastructure
AzureAWSFastAPIREST APIsMicroservices
Latest Writing
Engineering judgement from production search, enterprise AI delivery, and retrieval system design.
Selected Publications
Optional reading for deeper technical context and academic work.
2019
International Journal on Semantic Web and Information Systems (IJSWIS)
A Parallel Neural Network approach for Faster Rumor Identification in Online Social Networks
CNN architecture for early rumor identification.
View publication2020
Journal of Organizational and End User Computing
A Bio-inspired Defensive Rumor Confinement Strategy in Online Social Networks
Bio-inspired strategy for rumor containment.
View publication2020
International Journal of Web Services Research (IJWSR)
A Neuro-Fuzzy approach to detect Rumors in Online Social Networks
Hybrid neuro-fuzzy model for rumor detection.
View publication2019
SN Applied Sciences (Springer)
Interest Aware Influential Information Disseminators in Social Networks
Influence modeling for targeted information diffusion.
View publication2019
Information Systems Design and Intelligent Applications (Springer)
An Effective Rumor Control Approach for Online Social Networks
Pulse-vaccination inspired rumor control strategy.
View publicationLet's Connect
Interested in search, LLM systems, production ML, or enterprise AI architecture? I am open to technical conversations, advisory work, and senior engineering opportunities.
santhoshramuk@gmail.com • Europe | Remote