Data Scientist | Python · SQL · ML · AWS · Power BI · Tableau | 5+ yrs BI, Analytics & LLM Training | Open to Data Scientist / Analyst roles
Aktualisiert am 09.07.2026
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 07.07.2026
Verfügbar zu: 100%
davon vor Ort: 100%
Data Analysis
Python
Data Visualization
SQL
Tableau
Power BI
Excel
Business Intelligence
ETL
Data Cleaning
Machine Learning
pandas
XGBoost
Data Reporting
Dashboard Development
A/B Testing
LLM Evaluation
claude
English
C1
German
B2
Tamil
native

Einsatzorte

Einsatzorte

Berlin (+500km) Frankfurt am Main (+500km) Hamburg (+500km)
Deutschland
möglich

Projekte

Projekte

1 Jahr 5 Monate
2024-10 - 2026-02

Design and maintenance of scalable data pipelines

Analytics Engineer - Market & Data
Analytics Engineer - Market & Data
  • Designed and maintained scalable data pipelines enabling comprehensive business performance reporting and leadership KPI dashboards, improving data accuracy by 35% across all reporting streams.
  • Built automated reporting solutions based on business stakeholder requirements, acting as primary liaison between data engineering teams and business units; ran backlog grooming and sprint ceremonies.
  • Engineered data models for high-volume datasets; implemented QA loops and data integrity workflows achieving 99.9% uptime across containerised environments (Docker, Kubernetes).
  • Developed and optimized SQL queries for large-scale data extraction, transformation, and loading across AWS Redshift and S3 data stores; applied partitioning and clustering for query performance.
  • Analysed REST API (Swagger/OpenAPI) interface documentation to define and specify data ingestion requirements; coordinated A/B testing pipelines via CI/CD tooling (Jenkins, GitLab).
  • Maintained data asset ownership and documentation in Confluence; tracked and triaged production data issues in Jira with full cross-functional resolution coordination.
Micro1
Berlin (Germany)
3 Monate
2025-10 - 2025-12

Mira

AI Data Operations Analyst
AI Data Operations Analyst
  • Streamlined data annotation and quality assurance processes for Project Mira, improving AI model accuracy by 15% via structured requirement documentation and QA benchmark specification.
  • Developed Python and SQL automation to handle large-scale data transformation workflows; converted unstructured expert feedback into high-signal structured training datasets, lifting downstream ML performance by 35%.
Freelance
Remote
2 Jahre 8 Monate
2020-06 - 2023-01

Design and implementation of end-to-end data pipelines

Analytics Engineer / BI Analyst
Analytics Engineer / BI Analyst
  • Designed and built end-to-end data pipelines and automated reporting solutions that drove USD 2 million in new revenue and secured a long-term client partnership through data-driven decision-making.
  • Created data models and transformation logic for integration between backend microservices and client-facing reporting systems; analysed SOAP/WSDL and REST/Swagger specifications to define requirements.
  • Built automated Power BI and Tableau dashboards for KPI tracking including conversion rate, ROI, and customer satisfaction; ensured GDPR compliance and data integrity across AWS Redshift pipelines.
  • Translated business stakeholder requirements into technical data solutions; created user stories, acceptance criteria, and functional specifications supporting product roadmap planning.
  • Automated legacy business logic transformation, reducing manual data processing time and enabling faster audit and compliance reporting across all product lines.
  • Facilitated agile scrum ceremonies including daily stand-ups, sprint reviews, and backlog refinement with cross-functional product and tech teams.
CV Designer
Chennai (India)

Aus- und Weiterbildung

Aus- und Weiterbildung

1 Jahr 9 Monate
2023-07 - 2025-03

Studie - Data Science

Master of Science, IU International University of Applied Sciences, Berlin (Germany)
Master of Science
IU International University of Applied Sciences, Berlin (Germany)
1 Jahr
2022-01 - 2022-12

Studie - Data Science

Master of Science, IIIT Bangalore, Bangalore (India)
Master of Science
IIIT Bangalore, Bangalore (India)
4 Jahre 1 Monat
2017-06 - 2021-06

Studie - Information Technology

Bachelor of Technology, Anna University, Tamil Nadu
Bachelor of Technology
Anna University, Tamil Nadu

Position

Position

Analytics Engineer | Data Pipelines | SQL & dbt | BI & Reporting

Kompetenzen

Kompetenzen

Top-Skills

Data Analysis Python Data Visualization SQL Tableau Power BI Excel Business Intelligence ETL Data Cleaning Machine Learning pandas XGBoost Data Reporting Dashboard Development A/B Testing LLM Evaluation claude

Schwerpunkte

  • SQL 
    • Query optimization, partitioning, clustering (PostgreSQL, MySQL, Redshift) 
  • Data Transformation 
    • dbt (data build tool), ETL pipeline design
  • Cloud Platforms 
    • AWS Redshift, S3, BigQuery (Google Cloud) 
  • Orchestration 
    • Airflow/ Dagster, Jenkins CI/CD pipelines
  • BI & Reporting 
    • Power BI, Tableau, KPI dashboards, revenue attribution
  • Web Analytics 
    • GA4 & frontend tracking implementation awareness
  • Data Modeling 
    • High-volume event and tracking data, flexible model design
  • Engineering Tools 
    • Docker, Kubernetes, GitLab CI/CD, Linux
  • Languages 
    • Python (certified), SQL 
  • Requirements & Agile 
    • ?Stakeholder interviews, backlog refinement, sprint planning

Produkte / Standards / Erfahrungen / Methoden

Profile
Analytics Engineer with 5+ years of experience designing and maintaining scalable data pipelines, automated reporting solutions, and revenue attribution models. Deep expertise in SQL query optimization, data transformation with dbt, and cloud-based big data platforms including AWS Redshift. Proven ability to translate complex business stakeholder requirements into robust data models, KPI dashboards, and shop analytics. Experienced with CI/CD pipelines (GitLab, Jenkins), containerization (Docker, Kubernetes), and cross-functional collaboration across product, tech, and data teams. German (B2) and English (C1).

Einsatzorte

Einsatzorte

Berlin (+500km) Frankfurt am Main (+500km) Hamburg (+500km)
Deutschland
möglich

Projekte

Projekte

1 Jahr 5 Monate
2024-10 - 2026-02

Design and maintenance of scalable data pipelines

Analytics Engineer - Market & Data
Analytics Engineer - Market & Data
  • Designed and maintained scalable data pipelines enabling comprehensive business performance reporting and leadership KPI dashboards, improving data accuracy by 35% across all reporting streams.
  • Built automated reporting solutions based on business stakeholder requirements, acting as primary liaison between data engineering teams and business units; ran backlog grooming and sprint ceremonies.
  • Engineered data models for high-volume datasets; implemented QA loops and data integrity workflows achieving 99.9% uptime across containerised environments (Docker, Kubernetes).
  • Developed and optimized SQL queries for large-scale data extraction, transformation, and loading across AWS Redshift and S3 data stores; applied partitioning and clustering for query performance.
  • Analysed REST API (Swagger/OpenAPI) interface documentation to define and specify data ingestion requirements; coordinated A/B testing pipelines via CI/CD tooling (Jenkins, GitLab).
  • Maintained data asset ownership and documentation in Confluence; tracked and triaged production data issues in Jira with full cross-functional resolution coordination.
Micro1
Berlin (Germany)
3 Monate
2025-10 - 2025-12

Mira

AI Data Operations Analyst
AI Data Operations Analyst
  • Streamlined data annotation and quality assurance processes for Project Mira, improving AI model accuracy by 15% via structured requirement documentation and QA benchmark specification.
  • Developed Python and SQL automation to handle large-scale data transformation workflows; converted unstructured expert feedback into high-signal structured training datasets, lifting downstream ML performance by 35%.
Freelance
Remote
2 Jahre 8 Monate
2020-06 - 2023-01

Design and implementation of end-to-end data pipelines

Analytics Engineer / BI Analyst
Analytics Engineer / BI Analyst
  • Designed and built end-to-end data pipelines and automated reporting solutions that drove USD 2 million in new revenue and secured a long-term client partnership through data-driven decision-making.
  • Created data models and transformation logic for integration between backend microservices and client-facing reporting systems; analysed SOAP/WSDL and REST/Swagger specifications to define requirements.
  • Built automated Power BI and Tableau dashboards for KPI tracking including conversion rate, ROI, and customer satisfaction; ensured GDPR compliance and data integrity across AWS Redshift pipelines.
  • Translated business stakeholder requirements into technical data solutions; created user stories, acceptance criteria, and functional specifications supporting product roadmap planning.
  • Automated legacy business logic transformation, reducing manual data processing time and enabling faster audit and compliance reporting across all product lines.
  • Facilitated agile scrum ceremonies including daily stand-ups, sprint reviews, and backlog refinement with cross-functional product and tech teams.
CV Designer
Chennai (India)

Aus- und Weiterbildung

Aus- und Weiterbildung

1 Jahr 9 Monate
2023-07 - 2025-03

Studie - Data Science

Master of Science, IU International University of Applied Sciences, Berlin (Germany)
Master of Science
IU International University of Applied Sciences, Berlin (Germany)
1 Jahr
2022-01 - 2022-12

Studie - Data Science

Master of Science, IIIT Bangalore, Bangalore (India)
Master of Science
IIIT Bangalore, Bangalore (India)
4 Jahre 1 Monat
2017-06 - 2021-06

Studie - Information Technology

Bachelor of Technology, Anna University, Tamil Nadu
Bachelor of Technology
Anna University, Tamil Nadu

Position

Position

Analytics Engineer | Data Pipelines | SQL & dbt | BI & Reporting

Kompetenzen

Kompetenzen

Top-Skills

Data Analysis Python Data Visualization SQL Tableau Power BI Excel Business Intelligence ETL Data Cleaning Machine Learning pandas XGBoost Data Reporting Dashboard Development A/B Testing LLM Evaluation claude

Schwerpunkte

  • SQL 
    • Query optimization, partitioning, clustering (PostgreSQL, MySQL, Redshift) 
  • Data Transformation 
    • dbt (data build tool), ETL pipeline design
  • Cloud Platforms 
    • AWS Redshift, S3, BigQuery (Google Cloud) 
  • Orchestration 
    • Airflow/ Dagster, Jenkins CI/CD pipelines
  • BI & Reporting 
    • Power BI, Tableau, KPI dashboards, revenue attribution
  • Web Analytics 
    • GA4 & frontend tracking implementation awareness
  • Data Modeling 
    • High-volume event and tracking data, flexible model design
  • Engineering Tools 
    • Docker, Kubernetes, GitLab CI/CD, Linux
  • Languages 
    • Python (certified), SQL 
  • Requirements & Agile 
    • ?Stakeholder interviews, backlog refinement, sprint planning

Produkte / Standards / Erfahrungen / Methoden

Profile
Analytics Engineer with 5+ years of experience designing and maintaining scalable data pipelines, automated reporting solutions, and revenue attribution models. Deep expertise in SQL query optimization, data transformation with dbt, and cloud-based big data platforms including AWS Redshift. Proven ability to translate complex business stakeholder requirements into robust data models, KPI dashboards, and shop analytics. Experienced with CI/CD pipelines (GitLab, Jenkins), containerization (Docker, Kubernetes), and cross-functional collaboration across product, tech, and data teams. German (B2) and English (C1).

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