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I am a data and systems integrations and operations engineer and architect with a strong focus on ETL processes and project management. I enjoy building scalable cloud data platforms, leading teams, and collaborating with customers to deliver measurable value. I thrive on learning new technologies, solving complex data challenges, and enabling teams to move faster by simplifying data dependencies and automating workflows. Recently, I migrated legacy data warehouses to Databricks on AWS, implemented Row Level Security, and built an Automated Data Catalog using Python and Neo4j to map data dependencies and automate documentation. I love gathering abstract requirements and turning them into concrete, maintainable solutions. My experience spans from on-prem to cloud, across multiple industries, with a track record of improving performance, reducing costs, and delivering reliable data platforms for decision making.…I am a data and systems integrations and operations engineer and architect with a strong focus on ETL processes and project management. I enjoy building scalable cloud data platforms, leading teams, and collaborating with customers to deliver measurable value. I thrive on learning new technologies, solving complex data challenges, and enabling teams to move faster by simplifying data dependencies and automating workflows. Recently, I migrated legacy data warehouses to Databricks on AWS, implemented Row Level Security, and built an Automated Data Catalog using Python and Neo4j to map data dependencies and automate documentation. I love gathering abstract requirements and turning them into concrete, maintainable solutions. My experience spans from on-prem to cloud, across multiple industries, with a track record of improving performance, reducing costs, and delivering reliable data platforms for decision making.

Sergey Lotnikov

Architect, Developer, Project Manager, +2

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I am a data and systems integrations and operations engineer and architect with a strong focus on ETL processes and project management. I enjoy building scalable cloud data platforms, leading teams, and collaborating with customers to deliver measurable value. I thrive on learning new technologies, solving complex data challenges, and enabling teams to move faster by simplifying data dependencies and automating workflows. Recently, I migrated legacy data warehouses to Databricks on AWS, implemented Row Level Security, and built an Automated Data Catalog using Python and Neo4j to map data dependencies and automate documentation. I love gathering abstract requirements and turning them into concrete, maintainable solutions. My experience spans from on-prem to cloud, across multiple industries, with a track record of improving performance, reducing costs, and delivering reliable data platforms for decision making.…I am a data and systems integrations and operations engineer and architect with a strong focus on ETL processes and project management. I enjoy building scalable cloud data platforms, leading teams, and collaborating with customers to deliver measurable value. I thrive on learning new technologies, solving complex data challenges, and enabling teams to move faster by simplifying data dependencies and automating workflows. Recently, I migrated legacy data warehouses to Databricks on AWS, implemented Row Level Security, and built an Automated Data Catalog using Python and Neo4j to map data dependencies and automate documentation. I love gathering abstract requirements and turning them into concrete, maintainable solutions. My experience spans from on-prem to cloud, across multiple industries, with a track record of improving performance, reducing costs, and delivering reliable data platforms for decision making.

Available to hire

I am a data and systems integrations and operations engineer and architect with a strong focus on ETL processes and project management. I enjoy building scalable cloud data platforms, leading teams, and collaborating with customers to deliver measurable value. I thrive on learning new technologies, solving complex data challenges, and enabling teams to move faster by simplifying data dependencies and automating workflows. Recently, I migrated legacy data warehouses to Databricks on AWS, implemented Row Level Security, and built an Automated Data Catalog using Python and Neo4j to map data dependencies and automate documentation.

I love gathering abstract requirements and turning them into concrete, maintainable solutions. My experience spans from on-prem to cloud, across multiple industries, with a track record of improving performance, reducing costs, and delivering reliable data platforms for decision making.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Advanced

Portuguese

Beginner

Russian

Fluent

Work Experience

Integrations Architect at LiveNation Inc.

November 1, 2023 - Present

Analyzed current architecture of data warehouses and ETL processes. Designed and implemented Data Firewall (Row Level Security) for corporate warehouse. Evaluated new features of Databricks cloud data platform; made improvement recommendations. Designed solutions in data engineering, data operations and devops to streamline data processing. Optimized workloads and reduced costs by identifying bottlenecks; achieved cost decrease of over $1000 per day. Participated in migration projects from legacy platforms to modern cloud, including ETL configurations rebuild. Participated in an international integration project to merge US and EU data processing into a single cloud data platform. Developed Automated Data Catalog using Python and Neo4j to map data dependencies and automate documentation.

Data Operations Team Lead at LiveNation Inc.

November 1, 2023 - Present

Led a team of data operations engineers maintaining cloud data platform; trained junior engineers on SOPs; onboarded 7 new team members. Resolved hundreds of data operations tasks using SQL, Spark, Talend, SSIS across Databricks, Teradata, Snowflake, MySQL, MSSQL, and Sybase.

Data Operations Engineer at LiveNation Inc.

June 1, 2021 - May 1, 2022

Maintained complex data warehousing and data processing platforms across cloud and on-premises; conducted root cause analysis for data quality issues; designed runbooks to help maintain uptime; participated in migration of legacy on-prem systems to modern cloud platforms; built tools for metadata analysis to identify performance and cost trends; worked with Snowflake, Oracle, MySQL, AWS, Linux, Bash; collaborated with cross-functional teams to implement ETL changes; improved throughput and quality; reduced downtime in production.

Solutions Integration Consultant at Mobileum Inc.

February 1, 2015 - June 1, 2021

Implemented many projects in mobile telecommunications domain: Fraud Management, Revenue Assurance and Usage Control; collaborated with business and technical teams; designed Data Models, ETL pipelines, interactive web interfaces and reports using low-code tools; deployed solutions on development and production environments; provided technical support and further development; managed client relationships.

Regional Division Head at Oil Processing Company, Krasnodar

October 1, 2011 - February 1, 2015

Started and developed a regional division to support a large network of POS terminals and Automated Gas Station Control Systems; maintained local Cards Processing Center and data warehouse; engaged with regional department to ensure SLAs; managed installation, technical support, maintenance and permanent repair of terminals and communication equipment; performed data quality control and manual data corrections; negotiated discount tariffs for corporate customers; hired and onboarded staff.

Principal Engineer at MTS, Krasnodar

November 1, 2004 - October 1, 2011

OSS/BSS technical support and exploitation for a large mobile operator (~100M subscribers); worked with large volumes of data in Oracle; developed stored procedures and packages; configured and supported microservices; coordinated system updates and patching across many servers; led on-site integration teams; contributed to pre-sales and integration projects; documented data flows and architecture diagrams; mentored local on-site integration team.

Automated Banking System Administrator at YUGBANK, Krasnodar

January 1, 2001 - November 1, 2004

Performed administrative tasks for Automated Banking System: data consistency control, non-standard data queries, user administration; contributed to banking software updates; participated as systems analyst in new system development; developed internal reporting tools.