Yunus Hajjaj
Summary
Experienced Data Engineer with expertise in AWS, KDB+ and Python, dedicated to delivering robust and scalable data solutions. Professional at data gathering, manipulation and optimization. Proven skills in project management, coding, and testing. Multiple years of experience in building well-performing databases and dashboards matching specifications and exceeding expectations. Seeks out opportunities to expand skills and improve designs.
Overview
4
4
years of professional experience
3
3
years of post-secondary education
1
1
Certification
Work History
Data engineer
First Derivatives
London
06.2022 - Current
- Optimised automated build and deployment processes through Jenkins
- Developed complex data models to support business decision-making.
- Streamlined flow of information by introducing efficient ETL processes.
- Managed end-to-end data pipeline construction for seamless integration of disparate data sources.
- Improved data quality with rigorous validation techniques and error handling protocols.
- Optimised large datasets to improve speed and efficiency in analysis tasks.
- Identified opportunities for process improvement through thorough review of existing systems and procedures.
- Implemented real-time monitoring tools to detect anomalies in data streams swiftly.
- Created interactive dashboards using BI tools such as Tableau, KX Dashboards, empowering non-technical stakeholders with actionable insights.
- Enhanced data querying efficiency, resulting in significant performance improvements and quicker response times
- Oversaw weekend build deployments, boosting operational efficiency through effective weekly release management
- Leveraged Python, SQL, and kdb+/q to analyse large data sets for strategic insights
Health advisor
NHS LCW UCC
London
03.2021 - 05.2022
- Conducted telephone-based medical evaluations and administered patient support throughout the UK
- Managed emergency calls with precision and composure
- Thrived in dynamic workplace, improving adaptability and self-confidence
Education
BEng - Mechanical Engineering
Queen Mary University of London
London 09.2018 - 07.2021
Skills
- Python - Pandas, Numpy, OOP
- SQL
- KDB
- Data modelling
- Database management
- AWS - EC2, S3, Lambda, SNS, API Gateway
- Git
- Data Visualisation - KX Dashboards, Tableau, Power BI
- Bash Scripting
- Linux
- Agile methodology
- Cybersecurity measures
- Disaster recovery planning
- JIRA
- Jenkins ci and cd
Certification
AWS Associate Solutions Architect
Languages
Arabic
Intermediate
Timeline
Data engineer
First Derivatives
06.2022 - Current
Health advisor
NHS LCW UCC
03.2021 - 05.2022
BEng - Mechanical Engineering
Queen Mary University of London
09.2018 - 07.2021
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