Aliona Vataman
Berlin,CU
Summary
Backend developer specializing in API creation, data integration, and automation. Expertise in PostgreSQL and Python, with a focus on optimizing ETL processes and improving data retrieval efficiency. Proven ability to collaborate effectively, delivering innovative solutions across diverse platforms.
Overview
4
4
Languages
1
1
Certification
4
4
years of professional experience
Work History
DataEngineer/BackendDeveloper
Sunshine Live GmbH & Co. KG
Mannheim, Baden-Württemberg
12.2025 - 08.2026
- Developed music archive API using Python FastAPI and PostgreSQL for robust data management.
- Built REST APIs and JSON-based services to streamline data access and integration.
- Implemented fuzzy search and enriched metadata workflows to optimize data retrieval.
- Integrated external data sources with automated ETL pipelines for enhanced processing efficiency.
- Created lightweight JavaScript web interface for seamless artwork retrieval and audio preview.
- Utilized Docker and Linux environments to ensure efficient application deployment.
- Supported metadata processing while facilitating system integration across multiple platforms.
- Optimized ETL processes for improved data flow and efficiency.
- Documented technical specifications for data architecture and workflows.
- Collaborated with cross-functional teams to gather requirements and translate business needs into technical specifications for data solutions.
- Configured and maintained cloud-based data infrastructure on platforms like AWS, Azure, and Google Cloud to enhance data storage and computation capabilities.
Backend Engineer
Optimal Solution HUB, SRL
Chisinau
12.2022 - 09.2025
- Developed and maintained backend services and RESTful APIs using Python Flask and SQLAlchemy.
- Implemented JWT authentication and authorization mechanisms for controlled system access.
- Designed and optimized PostgreSQL relational database schemas for efficient data handling.
- Integrated backend systems with frontend applications, ensuring secure data exchange and user data integrity.
- Built automated workflows for data validation and processing, improving system reliability and reducing manual intervention.
- Conducted debugging and root cause analysis in Linux environments, resolving issues to maintain system stability.
- Participated in code reviews, testing, and documentation, contributing to overall code quality.
- Collaborated with front-end developers to integrate user-facing elements seamlessly.
- Collaborated in agile development processes focused on continuous improvement.
- Participated in agile development processes, contributing to sprint planning and retrospectives.
Education
Diploma - Accounting
College "Podmoskovie"-Solnechnogorsk
RussiaBachelor's Degree - Information Technology / Software Engineer
Academy of Economic Studies of Moldova (ASEM)
ChisinauSkills
- Programming languages: Python, JavaScript, C, C, SQL
Frameworks and technologies: FastAPI, Flask, SQLAlchemy
REST APIs and JSON
Docker and databases
PostgreSQL and database design
Query optimization
Backend and data engineering
ETL pipelines and API integration
Data processing and validation
Metadata processing and fuzzy search
Tools and methodologies: Linux, Git, Agile/Scrum
Technical documentation
Software testing and debugging - API development
- Cloud infrastructure management
- ETL processing
- Data integration
Personal Information
Title: Python Backend Developer | Data Engineering | REST APIs | PostgreSQL| ETL
Certification
- IBM Data Science Professional Certificate
- Data Analysis with Python
- Machine Learning with Python
- SQL for Data Science
- Applied Data Science Capstone
- Data Visualization with Python
- Databases and SQL for Data Science with Python
Languages
German - Intermediate, Romanian - Native, Russian - Native, English - Fluent
Additional Information
- Strong focus on building reliable and maintainable software solutions
- Experience designing automated workflows and improving operational efficiency
- Familiar with system integration and structured software development processes
- Comfortable working with containerized applications and Linux-based environments
- Structured and solution-oriented mindset with strong analytical skills
- Committed to continuous learning and professional growt
Languages
English
Advanced (C1)
C1
German
Upper Intermediate (B2)
B2
Russian
Native
Native
Romanian
Proficient (C2)
C2
Timeline
DataEngineer/BackendDeveloper
Sunshine Live GmbH & Co. KG
12.2025 - 08.2026
Backend Engineer
Optimal Solution HUB, SRL
12.2022 - 09.2025
Diploma - Accounting
College "Podmoskovie"-Solnechnogorsk
Bachelor's Degree - Information Technology / Software Engineer
Academy of Economic Studies of Moldova (ASEM)