Hire Freelance Online Transaction Processing Developers and Engineers
Mikhail Fishzon
Mikhail is an alumnus of Google and Lyft and a data engineer who enjoys turning real-life business problems into scalable data platforms. Over the last two decades, he has helped companies architect, build, and maintain performance-optimized databases and data pipelines. Mikhail is knowledgeable in database optimization techniques and has achieved a 99% increase in slow-running query performance.
Show More
Gabriel Breahna
Gabriel has 30 years of experience installing, managing, and using SQL, NoSQL (key-value, columnar, graph), time-series, spatial, in-memory, and cloud databases. He's worked with 10TB OLTP databases, 10TB data warehouses, tables with 10+ billion rows, and databases with 10,000+ tables. He's built greenfield and brownfield apps, managed acquisitions, mergers, and spin-offs, and is proficient in Oracle, PostgreSQL, MySQL, Snowflake, BigQuery, Redshift, Synapse, MongoDB, Cassandra, and DynamoDB.
Show More
Joris Laperre
Joris is a passionate problem solver with a wealth of experience in relational database design and development, and .NET coding. He was the principal database architect for Microsoft's extensive enterprise healthcare system for several years. More recently, he has been building business intelligence solutions focusing on metadata-driven solution generation. Joris prides himself on delivering exceptional quality work at record speed.
Show More
Daphne Liu
Daphne is a highly motivated big data analytic architect and SQL/Tableau developer with strong business analytic solution delivery skills and 20 years of progressively responsible OLTP/OLAP database development/architecture experience. She is a frequent seminar speaker and workshop trainer in business intelligence and analytic solutions. Daphne is experienced collaborating with business users in data modeling and business analytic solutions.
Show More
Vipen Koul
Vipen is a highly experienced database warehouse, development, and performance professional with comprehensive knowledge of OLAP and OLTP databases. Vipen has worked as a data architect, data modeler, ETL developer, database developer, and data analyzer utilizing Vertica, Teradata, Netezza, Oracle, and SQL Server, as well as Snowflake and Python.
Show More
Bogdan Beca
Bogdan has 20+ years of hands-on experience with enterprise-level systems, delivering tens of large projects for top organizations in energy, pharma, telco, eCommerce, banking, and the public sector. As a solutions architect, Bogdan can drive a solution from concept to production or provide end-to-end POCs (or MVPs) regarding solution architecture, design, development, and release pipelines.
Show More
Iván Guillermo Aldana
Along with having a bachelor's degree in systems engineering from Universidad Tecnologica Nacional, Iván has more than 15 years of experience working with 24x7 databases and over a billion concurrent users. He not only has hands-on experience in database design but also is quiet good at administration and development. Ivan has an analytical vision like few others and excels at taking on new and complex challenges.
Show More
Allan Kote
Allan is a data engineer with 15 years of hands-on experience in data analytics and business intelligence. Having worked as a data specialist for diverse companies, both as an internal team member and a freelancer, he has acquired extensive knowledge about the latest technology in the field. Allan also has excellent written and oral communication skills, a passion for learning, and a strong will to keep increasing his technical skill set.
Show More
Rade Pobulic
Rade has three decades of experience with Oracle products (database, tools, applications, middleware, and business intelligence). With so many years of hands-on, in-depth experience under his belt, it can safely be said that Rade is a world-class expert in Oracle databases, SQL tuning, and development. Recently, he's been working on Oracle E-Business Suite customization and tuning.
Show More
Anthony Harper
Anthony is a database designer and developer with 10+ years of experience in large Oracle PL/SQL implementations. He is proficient in Oracle database architecture, using PL/SQL programs to support application clients, ETL processes, and web services. Anthony is skilled in developing and optimizing tables, indexes, packages, triggers, views, procedures, and functions to keep business logic in the database. He is committed to mastering new functionality in the field to deliver the best solutions.
Show More
Dhruvi Pandya
Dhruvi is a data engineering professional with seven years of industry experience who started as a back-end developer. Her expertise lies in building, maintaining, and optimizing data pipelines, mostly with stacks such as Spark, Airflow, Storm, Snowplow, Docker, and Kafka. She has hands-on experience with AWS services like EC2, EMR, Elastic Beanstalk, Athena, and Redshift. Dhruvi is also well-versed in Agile development and sprint planning methodologies.
Show MoreDiscover More Online Transaction Processing Developers in the Toptal Network
Start Hiring
