Data & AI Engineer | Python, Data Engineering, Machine Learning & Analytics
Aktualisiert am 12.08.2026
Profil
Freiberufler / Selbstständiger
Verfügbar ab: 12.08.2026
Verfügbar zu: 100%
davon vor Ort: 100%
Python
Data Engineer
Machine Learning
SQL
ETL
Data Analysis
Pandas
PostgreSQL
MongoDB
REST APIs
MS Power BI
Datenqualitätsprüfung
TensorFlow
PyTorch
scikit-learn
NLP
Docker
Git
Azure Databricks
Azure Data Factory
Apache Airflow
dbt
IoT/MQTT
English
Fluent, C1
German
B1, actively improving
Hindi
B2
Telugu
Native

Einsatzorte

Einsatzorte

Deutschland, Österreich
nicht möglich

Projekte

Projekte

11 months
2025-09 - 2026-07

Developed end-to-end real-time IoT data pipelines

Research Associate / Software Developer- Data Engineering, IoT & Data Quality
Research Associate / Software Developer- Data Engineering, IoT & Data Quality
  • Developed end-to-end real-time IoT data pipelines using Python, Node-RED, MQTT, and REST APIs to ingest, process, and integrate sensor data from multiple sources.
  • Built Python-based validation and transformation workflows with Great Expectations and implemented rule-based data-quality checks, anomaly handling, and outlier smoothing.
  • Prepared structured datasets for analytics and downstream applications and created time-series and KPI dashboards in ThingsBoard to monitor trends, data quality, and pipeline results.
  • Worked with APIs, device provisioning, authentication, telemetry flows, and structured data in integrated IoT environments.
  • Collaborated with international and cross-functional project partners, tested partner components, documented findings, and presented technical solutions within an EU-funded multi-partner project.
BlueBridgeSolutions UG- DS2 Project
Saarbruecken, Germany
2 years
2023-09 - 2025-08

Implemented MongoDB-based CRUD services

Working Student- Data & Machine Learning Engineering
Working Student- Data & Machine Learning Engineering
  • Built automated data workflows for industrial energy-flexibility and time-series data using Node-RED, MongoDB, and webMethods .io.
  • Implemented MongoDB-based CRUD services, data versioning, and lifecycle tracking for structured JSON data to improve traceability and reproducible analysis.
  • Prepared and analysed energy time-series data in Python and applied regression-based modelling to support predictions of energy-load adjustments.
  • Developed custom Node-RED nodes with JavaScript and HTML and translated technical and project requirements into data structures, transformations, and practical workflows.
  • Used Git, Jira, Confluence, and practical PyTest-based testing for selected Python functions and data-processing logic in collaborative development work.
Software AG- ARIS, SynErgie Research Project
Saarbruecken, Germany
11 months
2024-05 - 2025-03

Designed and implemented a Python-based analysis pipeline

Master?s Thesis Researcher- Explainable AI & Neural Network Verification
Master?s Thesis Researcher- Explainable AI & Neural Network Verification
  • Designed and implemented a Python-based analysis pipeline for pretrained neural networks using TensorFlow/Keras, ONNX Runtime, and scikit-learn.
  • Evaluated model accuracy, robustness, runtime, abstraction quality, and neuron-reduction metrics and documented reproducible experiments.
  • Achieved approximately 30% neuron reduction with unchanged accuracy in the best evaluated configurations.
CISPA Helmholtz Center for Information Security
Saarbruecken, Germany
1 year 5 months
2022-04 - 2023-08

Developed, trained, and evaluated LSTM models in TensorFlow

Research Assistant in Artificial Intelligence
Research Assistant in Artificial Intelligence
  • Developed, trained, and evaluated LSTM models in TensorFlow for crop classification using Sentinel-2 time-series data.
  • Developed Python scripts with GeoPandas and Shapely for geospatial processing, spatial analysis, and data preparation.
  • Conducted AI/ML research and prepared technical reports on remote-sensing and geospatial applications.
German Research Center for Artificial Intelligence- DFKI
Kaiserslautern, Germany
5 months
2021-11 - 2022-03

Developed a Named Entity Recognition model in Python

Software Engineer
Software Engineer
  • Developed a Named Entity Recognition model in Python using Flair to identify and classify relevant information in customer queries.
  • Cleaned, labelled, and prepared customer-query datasets for text extraction and classification workflows.
  • Developed Angular-based interface components and integrated frontend functionality with backend services for an e-commerce application.
Alocalo GmbH
Saarbruecken, Germany
1 year 3 months
2019-05 - 2020-07

Developed an event-management web application

Software Developer
Software Developer
  • Developed an event-management web application using Angular, Java, and Spring and integrated frontend components with backend APIs.
Dreamz
Hyderabad, India

Aus- und Weiterbildung

Aus- und Weiterbildung

4 years 10 months
2020-11 - 2025-08

Data Science and Artificial Intelligence

Master of Science, Saarland University
Master of Science
Saarland University
Relevant coursework: Machine Learning, Statistics with R, Neural Networks, Formal Methods for AI Safety, Pruning Deep Neural Networks.
3 years 10 months
2015-07 - 2019-04

Computer Science and Engineering

Bachelor of Technology, Jawaharlal Nehru Technological University Kakinada
Bachelor of Technology
Jawaharlal Nehru Technological University Kakinada

Kompetenzen

Kompetenzen

Top-Skills

Python Data Engineer Machine Learning SQL ETL Data Analysis Pandas PostgreSQL MongoDB REST APIs MS Power BI Datenqualitätsprüfung TensorFlow PyTorch scikit-learn NLP Docker Git Azure Databricks Azure Data Factory Apache Airflow dbt IoT/MQTT

Produkte / Standards / Erfahrungen / Methoden

Professional Summary

Data and AI professional with an M. Sc. in Data Science and Artificial Intelligence and more than three years of practical experience across data engineering, machine learning, analytics, research, and software projects. Strong hands-on experience with Python, SQL, ETL/ELT, data quality, REST APIs, machine learning, NLP, and time-series data. Experienced in building reliable data workflows, preparing analytics-ready datasets, developing and evaluating ML models, and translating technical requirements into practical solutions. Comfortable working independently as well as with international and cross-functional teams.


Technical Skills

Data Engineering & Analytics:

  • Python
  • SQL
  • pandas
  • NumPy
  • ETL/ELT
  • data pipelines
  • data ingestion and integration
  • data transformation
  • orchestration
  • data quality
  • time-series analysis
  • statistical analysis
  • exploratory data analysis
  • Great Expectations


Machine Learning & AI:

  • scikit-learn
  • TensorFlow/Keras
  • PyTorch
  • ONNX Runtime
  • neural networks
  • LSTM
  • regression
  • NLP
  • Named Entity Recognition
  • text classification
  • Flair
  • NLTK
  • spaCy
  • Hugging Face/Transformers
  • Explainable AI
  • LLM fundamentals


Workflows, APIs & Cloud:

  • REST APIs
  • Node-RED
  • MQTT/Mosquitto
  • Apache Airflow
  • dbt
  • webMethods .io
  • Azure Data Factory
  • Azure Databricks
  • AWS S3
  • Apache Spark/PySpark (basic)
  • Kafka (basic)


Development & DevOps:

  • Git/GitHub
  • Docker
  • CI/CD
  • Linux/WSL
  • Postman
  • Jira
  • Confluence
  • Jupyter
  • VS Code
  • PyTest (practical use)
  • JavaScript
  • HTML/CSS
  • Java
  • Spring
  • Angular
  • C/C++ (academic foundations)


Projects

BI Platform Data Pipeline - Python, SQL, PostgreSQL, dbt, Airflow, Docker

Developed an end-to-end pipeline to extract and load raw data into PostgreSQL, transform it using dbt SQL models, and orchestrate the workflow with Apache Airflow DAGs. Implemented basic data-quality checks and prepared analytics-ready tables for BI reporting.


Sentiment Classification with Word Embeddings and Transfer Learning - PyTorch, NLTK, LSTM

Developed and trained an LSTM-based classification model using Skip-Gram word embeddings for Hindi and Bengali datasets. Applied transfer learning to improve cross-language classification and evaluated model performance.


IoT Sensor Analytics Dashboard - Power BI, Python, SQL

Cleaned and transformed IoT time-series data covering environmental and energy indicators. Created KPI measures and dashboards to visualise trends, anomalies, and data-quality metrics.

Datenbanken

PostgreSQL
MySQL
MongoDB
Snowflake
Power BI
DAX
ThingsBoard
KPI dashboards
Matplotlib
Seaborn

Einsatzorte

Einsatzorte

Deutschland, Österreich
nicht möglich

Projekte

Projekte

11 months
2025-09 - 2026-07

Developed end-to-end real-time IoT data pipelines

Research Associate / Software Developer- Data Engineering, IoT & Data Quality
Research Associate / Software Developer- Data Engineering, IoT & Data Quality
  • Developed end-to-end real-time IoT data pipelines using Python, Node-RED, MQTT, and REST APIs to ingest, process, and integrate sensor data from multiple sources.
  • Built Python-based validation and transformation workflows with Great Expectations and implemented rule-based data-quality checks, anomaly handling, and outlier smoothing.
  • Prepared structured datasets for analytics and downstream applications and created time-series and KPI dashboards in ThingsBoard to monitor trends, data quality, and pipeline results.
  • Worked with APIs, device provisioning, authentication, telemetry flows, and structured data in integrated IoT environments.
  • Collaborated with international and cross-functional project partners, tested partner components, documented findings, and presented technical solutions within an EU-funded multi-partner project.
BlueBridgeSolutions UG- DS2 Project
Saarbruecken, Germany
2 years
2023-09 - 2025-08

Implemented MongoDB-based CRUD services

Working Student- Data & Machine Learning Engineering
Working Student- Data & Machine Learning Engineering
  • Built automated data workflows for industrial energy-flexibility and time-series data using Node-RED, MongoDB, and webMethods .io.
  • Implemented MongoDB-based CRUD services, data versioning, and lifecycle tracking for structured JSON data to improve traceability and reproducible analysis.
  • Prepared and analysed energy time-series data in Python and applied regression-based modelling to support predictions of energy-load adjustments.
  • Developed custom Node-RED nodes with JavaScript and HTML and translated technical and project requirements into data structures, transformations, and practical workflows.
  • Used Git, Jira, Confluence, and practical PyTest-based testing for selected Python functions and data-processing logic in collaborative development work.
Software AG- ARIS, SynErgie Research Project
Saarbruecken, Germany
11 months
2024-05 - 2025-03

Designed and implemented a Python-based analysis pipeline

Master?s Thesis Researcher- Explainable AI & Neural Network Verification
Master?s Thesis Researcher- Explainable AI & Neural Network Verification
  • Designed and implemented a Python-based analysis pipeline for pretrained neural networks using TensorFlow/Keras, ONNX Runtime, and scikit-learn.
  • Evaluated model accuracy, robustness, runtime, abstraction quality, and neuron-reduction metrics and documented reproducible experiments.
  • Achieved approximately 30% neuron reduction with unchanged accuracy in the best evaluated configurations.
CISPA Helmholtz Center for Information Security
Saarbruecken, Germany
1 year 5 months
2022-04 - 2023-08

Developed, trained, and evaluated LSTM models in TensorFlow

Research Assistant in Artificial Intelligence
Research Assistant in Artificial Intelligence
  • Developed, trained, and evaluated LSTM models in TensorFlow for crop classification using Sentinel-2 time-series data.
  • Developed Python scripts with GeoPandas and Shapely for geospatial processing, spatial analysis, and data preparation.
  • Conducted AI/ML research and prepared technical reports on remote-sensing and geospatial applications.
German Research Center for Artificial Intelligence- DFKI
Kaiserslautern, Germany
5 months
2021-11 - 2022-03

Developed a Named Entity Recognition model in Python

Software Engineer
Software Engineer
  • Developed a Named Entity Recognition model in Python using Flair to identify and classify relevant information in customer queries.
  • Cleaned, labelled, and prepared customer-query datasets for text extraction and classification workflows.
  • Developed Angular-based interface components and integrated frontend functionality with backend services for an e-commerce application.
Alocalo GmbH
Saarbruecken, Germany
1 year 3 months
2019-05 - 2020-07

Developed an event-management web application

Software Developer
Software Developer
  • Developed an event-management web application using Angular, Java, and Spring and integrated frontend components with backend APIs.
Dreamz
Hyderabad, India

Aus- und Weiterbildung

Aus- und Weiterbildung

4 years 10 months
2020-11 - 2025-08

Data Science and Artificial Intelligence

Master of Science, Saarland University
Master of Science
Saarland University
Relevant coursework: Machine Learning, Statistics with R, Neural Networks, Formal Methods for AI Safety, Pruning Deep Neural Networks.
3 years 10 months
2015-07 - 2019-04

Computer Science and Engineering

Bachelor of Technology, Jawaharlal Nehru Technological University Kakinada
Bachelor of Technology
Jawaharlal Nehru Technological University Kakinada

Kompetenzen

Kompetenzen

Top-Skills

Python Data Engineer Machine Learning SQL ETL Data Analysis Pandas PostgreSQL MongoDB REST APIs MS Power BI Datenqualitätsprüfung TensorFlow PyTorch scikit-learn NLP Docker Git Azure Databricks Azure Data Factory Apache Airflow dbt IoT/MQTT

Produkte / Standards / Erfahrungen / Methoden

Professional Summary

Data and AI professional with an M. Sc. in Data Science and Artificial Intelligence and more than three years of practical experience across data engineering, machine learning, analytics, research, and software projects. Strong hands-on experience with Python, SQL, ETL/ELT, data quality, REST APIs, machine learning, NLP, and time-series data. Experienced in building reliable data workflows, preparing analytics-ready datasets, developing and evaluating ML models, and translating technical requirements into practical solutions. Comfortable working independently as well as with international and cross-functional teams.


Technical Skills

Data Engineering & Analytics:

  • Python
  • SQL
  • pandas
  • NumPy
  • ETL/ELT
  • data pipelines
  • data ingestion and integration
  • data transformation
  • orchestration
  • data quality
  • time-series analysis
  • statistical analysis
  • exploratory data analysis
  • Great Expectations


Machine Learning & AI:

  • scikit-learn
  • TensorFlow/Keras
  • PyTorch
  • ONNX Runtime
  • neural networks
  • LSTM
  • regression
  • NLP
  • Named Entity Recognition
  • text classification
  • Flair
  • NLTK
  • spaCy
  • Hugging Face/Transformers
  • Explainable AI
  • LLM fundamentals


Workflows, APIs & Cloud:

  • REST APIs
  • Node-RED
  • MQTT/Mosquitto
  • Apache Airflow
  • dbt
  • webMethods .io
  • Azure Data Factory
  • Azure Databricks
  • AWS S3
  • Apache Spark/PySpark (basic)
  • Kafka (basic)


Development & DevOps:

  • Git/GitHub
  • Docker
  • CI/CD
  • Linux/WSL
  • Postman
  • Jira
  • Confluence
  • Jupyter
  • VS Code
  • PyTest (practical use)
  • JavaScript
  • HTML/CSS
  • Java
  • Spring
  • Angular
  • C/C++ (academic foundations)


Projects

BI Platform Data Pipeline - Python, SQL, PostgreSQL, dbt, Airflow, Docker

Developed an end-to-end pipeline to extract and load raw data into PostgreSQL, transform it using dbt SQL models, and orchestrate the workflow with Apache Airflow DAGs. Implemented basic data-quality checks and prepared analytics-ready tables for BI reporting.


Sentiment Classification with Word Embeddings and Transfer Learning - PyTorch, NLTK, LSTM

Developed and trained an LSTM-based classification model using Skip-Gram word embeddings for Hindi and Bengali datasets. Applied transfer learning to improve cross-language classification and evaluated model performance.


IoT Sensor Analytics Dashboard - Power BI, Python, SQL

Cleaned and transformed IoT time-series data covering environmental and energy indicators. Created KPI measures and dashboards to visualise trends, anomalies, and data-quality metrics.

Datenbanken

PostgreSQL
MySQL
MongoDB
Snowflake
Power BI
DAX
ThingsBoard
KPI dashboards
Matplotlib
Seaborn

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