Alex Dembo

Data Engineer

London, England, United Kingdom10 yrs experience

Key Highlights

Achieved significant performance improvements in data processing.
Mentored junior engineers to enhance team capabilities.
Designed scalable data infrastructure for diverse applications.

Stackforce AI infers this person is a Data Engineering expert with a strong focus on scalable solutions in the Tech industry.

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Skills

Core Skills

Data EngineeringSql Database DesignTechnical LeadershipMentoringSoftware Development

Other Skills

Amazon Web Services (AWS)Apache KafkaApache SparkData ArchitectureData GovernanceData PipelinesData WarehousingDevOpsFlaskGitGitlabHadoopMicrosoft AzureOracle DatabasePandas (Software)

About

My background in Engineering has given me a strong foundation for software design, solid problem-solving skills, and a sense of well-architected solutions. During my career, I have developed project coordination skills which I believe are essential for dealing effectively with any team or business. Always eager to keep up with cutting-edge solutions and challenge my capabilities.

Experience

Google via rmit

Data Engineer

Aug 2024 – Feb 2025 · 6 mos · Zurich, Switzerland · On-site

Developed and maintained SQL-based data pipelines and dashboards using F1, Spanner, and Protobuf.
Improved reporting and analysis of server traffic management and efficiency initiatives.
Achieved ~10x performance improvements by transitioning from normalized data processing to dimensional models/star schema.
Enhanced reporting accuracy and accessibility with the new data schema.

SQL database designData PipelinesData WarehousingData ArchitectureData Engineering

Cern

Staff computing engineer

Jul 2023 – Jul 2024 · 1 yr · Geneva, Switzerland · On-site

Rearchitected and migrated streaming and batch data pipelines using Python.
Redesigned the data model for recruitment and campus services to improve usability and performance.
Consolidated data from multiple sources for streamlined integration and analysis.
Increased data quality and stability by implementing data validation techniques, unit testing, and resilient processing technologies.
Reduced high-velocity data loss from ~0.2% to ~0%.
Mentored and supported data engineers to improve team efficiency and technical capabilities.

Technical LeadershipSQL database designOracle DatabaseData WarehousingData GovernanceData Architecture+3

Channel

Senior Data Engineer

Jul 2022 – Jul 2023 · 1 yr

Designed and developed a robust data platform to support organizational needs.
Collaborated closely with non-technical stakeholders, including sales, operations, and senior management, as well as technical teams like data science, application development, and analytics.
Migrated on-premise ETL Python data pipelines to serverless Python processing in Azure and AWS.
Built and maintained ELT data pipelines using DBT and SQL.
Provided support for data visualization efforts to improve reporting and insights.
Reduced costs of legacy ETL processes by ~10x through query optimization and migration to serverless technologies.

Amazon Web Services (AWS)Technical LeadershipSQL database designdbtData WarehousingData Governance+5

Kainos

Senior Data Engineer

Jun 2021 – Aug 2022 · 1 yr 2 mos · London, England, United Kingdom

Data engineering using Azure Synapse. SQL and PySpark-based data transformations. End-to-end data pipelines. Scheduling of new ETLs and support of existing ones. Tight collaboration with client’s representatives.

Technical LeadershipData WarehousingGitData GovernanceMentoringData Architecture+4

Sainsbury's bank

Senior Data Engineer

Apr 2020 – Jun 2021 · 1 yr 2 mos · London, England, United Kingdom

Developed automated RBAC for Snowflake data warehouse. Mentored junior team members. Data engineering using Python, Hive SQL. Automated and scheduled data extraction. Existing data pipeline migration to Snowflake. Development using various serverless AWS technologies and Terraform. Encouraged test-driven development. Scheduled pipelines using Airflow.

SQL database designData WarehousingGitMentoringPandas (Software)Data Pipelines+1

Equity bank limited

Senior Data Engineer

Sep 2018 – Apr 2020 · 1 yr 7 mos · Nairobi

Designed and built scalable data infrastructure using Python, Airflow, PySpark and containerization for efficient development and deployment. Implemented automated ETL pipelines and web services for data visualization and analysis.
Mentored junior team members and fostered a collaborative environment. Supported codebase maintenance. Modelled data for telecom services.
Experience with Elasticsearch/Logstash/Kibana and containerization for remote development environments with various database integrations.

Technical LeadershipSQL database designOracle DatabaseData WarehousingGitData Governance+5

Dyninno latvia

Software Developer

Jun 2016 – Aug 2018 · 2 yrs 2 mos · Riga

Services for airline consolidated sales.
Backend development, database design, and data integration between services. Performance optimisation, and concurrency troubleshooting. Payment automated verification, decision support and processing. Administration and content management panel integration. Data visualisation.
REST API design using modern software development frameworks.

SQLSQL database designGitSoftware Development