Valery Khamenya - AdTech Engineer & Data Scientist

Q: Where is Valery based?

Valery is based in Munich, Germany and can operate in on-site , hybrid , and remote work models.

Q: What languages does Valery speak?

Valery speaks the following languages: German (Native), English (Native), Russian (Native) .

Q: How many years of experience does Valery have?

Valery has at least 28 years of experience. During this time, Valery has worked in at least 26 different roles and for 23 different companies . The average length of individual experience is 1 year . Note that Valery may not have shared all experience and actually has more experience.

Q: What is Valery's latest experience?

Valery's most recent position is Sr. Data Scientist & Engineer at Virtual Minds .

Q: What companies has Valery worked for in recent years?

In recent years, Valery has worked for Virtual Minds , Huawei Research Center , and Ludaciti GmbH .

Q: Which industries is Valery most experienced in?

Valery is most experienced in industries like Information Technology , Biotechnology , and Aerospace and Defense . Valery also has some experience in Telecommunication , Advertising , and Automotive .

Q: Which business areas is Valery most experienced in?

Valery is most experienced in business areas like Information Technology , Research and Development , and Business Intelligence . Valery also has some experience in Product Development , Strategy , and Operations .

Q: Which industries has Valery worked in recently?

Valery has recently worked in industries like Information Technology , Advertising , and Telecommunication .

Q: Which business areas has Valery worked in recently?

Valery has recently worked in business areas like Business Intelligence , Research and Development , and Strategy .

Recommended expert

Munich, Germany

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Experience

Jan 2025 - Jan 2026

1 year 1 month

Freiburg im Breisgau, Germany

Sr. Data Scientist & Engineer

Virtual Minds

Development of high-performance ad distribution via auction
Holistic (multi-campaign & multi-channel) advertisement placement optimization
Algorithmic optimization for NP-Hard/NP-e
Multiple Knapsack Problem with constraints
Online estimation of parameters in stochastic environments

Tools: Python, R, Kotlin, MILP/SAT/CP Solvers, Pytorch, Pandas, Docker

Sep 2022 - Jan 2024

1 year 5 months

Freiburg im Breisgau, Germany

Sr. Data Scientist / Sr. Computer Scientist

Virtual Minds

Advertisement placement optimization
Algorithmic optimization for NP-Hard/NP-Complete problems
Polynomial-time approximations for exponential-time complexity problems
Multiple Knapsack Problem with constraints
Multivariate Statistics, ML/AI for NP-Hard/NP-Complete problems

Tools: Python, R, Kotlin

Oct 2020 - Apr 2022

1 year 7 months

Munich, Germany

Sr. Data Scientist (ML/DL)

Huawei Research Center

Automated object detection and recognition
Machine Learning and Deep Learning implementations
TensorFlow- and ONNX-based implementations for ARM64 architecture
Multivariate Statistics and Modeling for 2D images
Digital Signal Processing (DFT, DTCWT, PCA, SVD, etc.)
Robust digital steganography for images and video
Broad range of Computer Vision tasks

Tools: Python, R, Julia, TensorFlow, ONNX, Docker, Raspberry Pi, ARM64, OpenCV

Oct 2020 - Jan 2021

4 months

Munich, Germany

Consultant on Parallelized Statistical Computations

DEVK Rückversicherung

Review of the existing R source code for possible parallelization
Time profiling and optimization of the existing R source code
Horizontal scaling for the R-based application using AWS Batch

Tools: R, AWS Batch, Terraform, Terratest, Terragrunt

Oct 2020 - Jan 2021

4 months

Munich, Germany

Sr. Data Scientist (ML, NLP and Semantic Search)

Gulp GmbH

Mentoring on semantic search and natural language processing
DS/ML implementation for semantics extraction from the documents
Semantic extraction as a microservice on Google Cloud Platform

Tools: Python, nltk, Docker, GCP

Apr 2019 - Sep 2019

6 months

Munich, Germany

Spark Architect / Sr. Big Data Engineer (Spark)

Münchener Hypothekenbank eG

built Data Lake from scratch
automated Spark batch processing
set up full-cycle GitLab CI and GitLab Flow
Spark-based data depersonalization and historization
defined the Software Developer Guide for the team

Tools: Spark, Hive, Hadoop, Python, PySpark, GitLab, Docker, Docker Hub, Apache Zeppelin, Hortonworks, Nexus, git, Linux toolset

Feb 2019 - Dec 2025

6 years 11 months

Munich, Germany

Chief Analytics Officer (CAO)

Ludaciti GmbH

mentoring for Advanced Analytics
Multivariate Analysis, Correspondence Analysis, Cause and Effect Analysis, Factor Analysis, ICA, PCA, etc.

Tools: R / RStudio, Python / PyTorch

Aug 2017 - Jan 2019

1 year 6 months

Munich, Germany

Sr. Data Scientist

Telefónica Germany GmbH & Co. OHG

Highlight: I am the author of geo-localization technology used by Telefonica

Location Intelligence derived from Big Data
Geo-localization of subscribers based on anonymized low-level event data produced within mobile network
Big Data analysis of network event data using AWS EMR and Spark

Tools: Scala, Spark, Python, R, Zeppelin, Hive SQL, Hadoop, S3, AngularJS, AWS EMR, EC2, Docker, AWS Linux, OpenStreetMap (OSM)

May 2017 - May 2017

1 month

Bonn, Germany

Roll-out manager for the mission-critical innovation presentations

Frog Design & Deutsche Telekom AG

Edge computing, "5G" and generic AWS cloud computing
Advise on Python-based microservice networking (TCP/UDP/OSC/HTTP)
Advise on roll-out, co-working with hardware engineers
Advise on DevOps questions

Tools: Python, C++, Docker

Mar 2017 - Mar 2017

1 month

Munich, Germany

Attribution modeling consultant

ProSieben

Consult about attribution modeling using R
Advise on Generalized additive models for time-series (GAM)
Advise on Autoregressive Moving Average models (ARMA / ARIMA)
Advise on algorithms for optimal budget distribution among assets (algorithms for investment strategies maximizing ROI)

Tools: R

May 2016 - Dec 2016

8 months

Wuppertal, Germany

Team-Lead / Delivery Manager during Go-Live Phase

Vorwerk

Main: team-leading and delivery management within two SOA-components for the Thermomix® Cloud Platform during Cook-Key® Go-Live Phase
Reporting to Vorwerk top-management of Thermomix® group
Communication to the software vendors of adjacent AWS microservices
Hands-on incident management in backend components.
Governance processes, change & release management
Automation of KPI-reporting
Integration of both microservices in the Thermomix® Cloud Platform
Hands-on collaboration with DevOps during deployment and configuration
Automated analysis of huge amount of log-records

Tools: Polarion, Kibana, Elasticsearch, Docker, C++, git, nginx, MySQL/MariaDB and other

Mar 2016 - May 2016

3 months

Wuppertal, Germany

Sr. Backend Developer for nginx-based microservices

Vorwerk

Main: development of nginx web-server extension module for Thermomix® Cloud Platform
Full-cycle TDD-development of the low-latency persistent storage with a caching facilities – implemented as microservice component with REST API
Implementation of SOAP-client
SCRUM modus, unit & integration testing using BATS
Automation of build & packaging process in Jenkins

Tools: C++, nginx, MySQL/MariaDB, Polarion, gSOAP, swaggerhub, KVM, Docker, Jenkins and other

Mar 2016 - Mar 2016

1 month

Mannheim, Germany

Workshop Coach for Semantic Search and Web-Mining

AbbVie Inc. Concern

Coaching AbbVie employees of the research team
Subject targeted: "Semantic Search and Web-Mining"

Tools: rich own experience and the PowerPoint!

Jul 2014 - Jan 2016

1 year 7 months

Munich, Germany

R&D Consultant for automated high-precision navigation

BMW Group FIZ

Development of high-precision road-maps for the advanced driver assistance systems and autonomous car driving
Solution implementation in software (SCRUM dev modus)

Tools: C++, PostgreSQL, OpenCV, Linux toolset in wide range

May 2014 - Jun 2014

2 months

Munich, Germany

DB Transaction Analyst

xWare42 GmbH

Develop DB-triggers for the detection of the fraud transactions
MySQL reporting for fraud transaction monitoring

Tools: MySQL/MariaDB, Linux toolset in wide range

Oct 2013 - Mar 2014

6 months

Munich, Germany

Consultant in Audio Recognition and Python Coach

wywy GmbH

Consulting in Audio Pattern Recognition
Coaching regarding Python, TDD, SCRUM
Deployment, Configuration, Provisioning (Docker, Puppet)
Microservices Architecture / Service-Oriented Architecture (SOA)

Tools: Python, pypy, numpy, Docker, Puppet, MATLAB, Linux toolset in wide range

May 2013 - Aug 2013

4 months

Munich, Germany

R&D Consultant for highly automated car driving

BMW Group FIZ

Assessing capabilities of sensors for the advanced driver assistance systems and autonomous car driving
Automated assessment and evaluation of huge amount of sensor data
Automated report generation suitable for technical and management decisions

Tools: MATLAB, LaTeX, XML, XSLT, C++, OpenCV, Linux toolset in wide range

Sep 2012 - Apr 2013

8 months

Munich, Germany

R&D Consultant for semantic search

Sopdu GmbH

Apply semantic search engine for finding candidate, not job ads
Optimization of search output
Enhancement of context-based search
Analysis of applicability of the semantic search engine for the patent database

Tools: Python, MongoDB, Lucene/Elasticsearch, Java, Linux toolset in wide range

Oct 2011 - Jul 2012

10 months

Munich, Germany

Senior DevOp

Payback GmbH

Deployment automatization in distributed environment in SOA
Automatization of individual node configuration

Tools: Python, Oracle WebLogic 12, bash, Linux toolset in wide range

Apr 2009 - Sep 2011

2 years 6 months

Munich, Germany

R&D Consultant for semantic search

Sopdu GmbH

Design of semantic search engine for the job search applications
Extracting semantics from corpora using machine learning
Tuning up for user preferences using machine learning
Implementation of semantic search engine prototype
Full responsibility for the data-mining, text-mining and web-mining
Data-warehouse implementation
Deployment management
See also: Screencast Video

Tools: Python, MongoDB, R, Lucene/Elasticsearch, Java, GNU make, bash and Linux toolset in wide range

Mar 2009 - May 2011

2 years 3 months

Munich, Germany

Business Development Manager, EMC Documentum SOA

Reksoft GmbH

Leads acquisition and support
Represents Reksoft outsourcing company in Germany

Tools: Phone, phone, phone and ring-ring-ring, well email client and PowerPoint

Jul 2007 - Mar 2009

1 year 9 months

Munich, Germany

On-site

On-site project coordinator at Fujitsu-Siemens

Reksoft GmbH

Main: coordination of 30+ employees developing software in about 20 projects for Fujitsu-Siemens
Represents Reksoft outsourcing company in Munich
Delivery management, conflict management
Budget & capacity planning

Tools: C# / .NET, Microsoft SharePoint

Jan 2007 - Jun 2007

6 months

Berlin, Germany

Self-employed start-up developer

Self-employed

Main: create a search service for finding alternatives to almost any well-known search term
Search service based on web mining is created: dooblet.com

Tools: R, Python, Django, Linux toolset in a wide range

Oct 2005 - Jan 2007

1 year 4 months

Berlin, Germany

Bioinformatician / Biostatistician / Software Developer

Epigenomics AG

Main: finding epigenetic biomarkers in DNA
preclinical exploratory research on Big Data
Moderation within regular software developer seminars

Tools: R, Sweave, Bioconductor, LaTeX, Affymetrix, Linux toolset in a wide range

Jun 2002 - Sep 2005

3 years 4 months

Hanover, Germany

Bioinformatician / Biostatistician / Software Developer

BioVision AG

Main: create a parallelized software service for finding peptide biomarkers from huge amounts of data obtained via HPLC+Mass spectrometry approach
preclinical exploratory research on Big Data
Data mining in huge amounts of molecular-level measurement data
Data storytelling in exploratory protein analysis
Building a computer cluster of 50 nodes to speed up task solving
Developing software for the cluster

Tools: C++, R, OpenSSI, Linux toolset in a wide range

Sep 2001 - May 2002

9 months

Dresden, Germany

Sr. Software Developer

Cognitec AG

Main: speed-up in-house face recognition software using Intel's Performance Libraries (approach proposed to the team during my interview)

Tools: C++, Intel MKL/IPP/IPL libraries, Linux toolset in wide range

Aug 2000 - Sep 2001

1 year 2 months

Moscow, Russian Federation

Head of Department, R&D Machine Learning & Neural Networks

R&D Center "Modul"

Main: supervise 3 R&D teams working on their individual projects based on machine learning and neural networks
Project successfully finished:
Automatic person recognition based on eye pupil images
Automatic person recognition based on arbitrary phrase
Automatic car surveillance system featuring speed measurements

Feb 1997 - Aug 2000

3 years 7 months

Moscow, Russian Federation

Team-Lead, R&D Machine Learning & Neural Networks

R&D Center "NTZ Modul"

Main: create neural network paradigm with a transparent model for feasible and controllable training and recognition
Leading the team of 4 employees
Showed that SOM-neural networks could be enhanced to be successfully used for approximating complex multidimensional data distributions similarly to Gaussian Mixture Models
Based on enhanced SOM-networks two projects fulfilled for Jena-Optronik and DaimlerChrysler Aerospace

Tools: C++, Linux toolset in wide range

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Information Technology, Biotechnology, Aerospace and Defense, Telecommunication, Advertising, and Automotive.

Information Technology

Biotechnology

Aerospace and Defense

Telecommunication

Advertising

Automotive

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology, Research and Development, Business Intelligence, Product Development, Strategy, and Operations.

Information Technology

Research and Development

Business Intelligence

Product Development

Strategy

Operations

Summary

Freelance Principal Data Scientist & Mathematician (M.Sc.) with 20+ years of hands-on work in software and data-intensive systems, including 15+ years in applied statistics, machine learning, and industrial R&D. Operates at principal, staff, and lead level, combining deep mathematical thinking with strong implementation and delivery.

Designs and delivers mathematically sound, explainable ML models, statistical solutions, and advanced algorithms for complex, high-dimensional problems across advertising technology, telecom, insurance, automotive, bioanalytics, and computer vision.

Combines hands-on ML/AI, statistics, and software engineering (Python, R, Spark, C++, AWS/GCP) with technical leadership (CAO, tech lead, mentor) and a strong focus on turning R&D prototypes into robust, production-grade solutions.

Skills

Core Competences

Bioanalytics (Biostatistics, Bioinformatics, Omics)
Tech Leadership In R&D Projects (It + Data Science)
Advanced Statistical Modeling And Predictive Analytics
Big Data Analytics And Machine Learning
Data Mining, Text Mining, Pattern Recognition
It Development

My Typical Tech Stack

Python, R, C++, Kotlin, Scala
Mongodb, Postgresql, Mysql
Apache Spark, Hadoop
Aws (Ec2, Emr, Batch), Gcp
Linux Toolset, Docker, Git

Languages

German

Native

English

Native

Russian

Native

Education

Oct 1991 - Jun 1996

Moscow State University

M.Sc. Degree · Mathematics · Moscow, Russian Federation

Statistics

Experience

Total positions 28

Experience in Information Technology 15 y

Avg length 1 y 2 m

Longest experience 6 y 10 m

Global Experience

Countries worked in 2 (Germany, Russian Federation)

Primary country Germany

Expertise

Recent roles Sr. Data Scientist & Engineer, Sr. Data Scientist / Sr. Computer Scientist, Sr. Data Scientist (ML/DL)

Main industries Information Technology, Biotechnology, Aerospace and Defense

Main business areas Information Technology, Research and Development, Business Intelligence

Qualifications

Highest degree Master

Profile

Created

July 2026

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Frequently asked questions

Have questions? Find more information here.

Where is Valery based?

Valery is based in Munich, Germany and can operate in on-site, hybrid, and remote work models.

What languages does Valery speak?

Valery speaks the following languages: German (Native), English (Native), Russian (Native).

How many years of experience does Valery have?

Valery has at least 28 years of experience. During this time, Valery has worked in at least 26 different roles and for 23 different companies. The average length of individual experience is 1 year. Note that Valery may not have shared all experience and actually has more experience.

What roles would Valery be best suited for?

Based on recent experience, Valery would be well-suited for roles such as: Sr. Data Scientist & Engineer, Sr. Data Scientist / Sr. Computer Scientist, Sr. Data Scientist (ML/DL).

What is Valery's latest experience?

Valery's most recent position is Sr. Data Scientist & Engineer at Virtual Minds.

What companies has Valery worked for in recent years?

In recent years, Valery has worked for Virtual Minds, Huawei Research Center, and Ludaciti GmbH.

Which industries is Valery most experienced in?

Valery is most experienced in industries like Information Technology, Biotechnology, and Aerospace and Defense. Valery also has some experience in Telecommunication, Advertising, and Automotive.

Which business areas is Valery most experienced in?

Valery is most experienced in business areas like Information Technology, Research and Development, and Business Intelligence. Valery also has some experience in Product Development, Strategy, and Operations.

Which industries has Valery worked in recently?

Valery has recently worked in industries like Information Technology, Advertising, and Telecommunication.

Which business areas has Valery worked in recently?

Valery has recently worked in business areas like Business Intelligence, Research and Development, and Strategy.

What is Valery's education?

Valery holds a Master in Mathematics from Moscow State University.

What is the availability of Valery?

Valery is immediately available for suitable projects.

What is the rate of Valery?

Valery's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.