Toptal is a marketplace for top remote SQL developers. Top companies and start-ups in Chicago choose Toptal SQL freelancers for their mission-critical initiatives.
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SQL Developer
Jonathan is a highly motivated developer and architect with a unique edge: his communication skills and ability to understand software projects from the top...-down. His experience has taken him through a wide range of development environments, from the startup to the Fortune 500.
SQL Developer
Chandra has over 15 years of experience as a Software Architect and leader in product development in Silicon Valley, Chicago, and India. He has helped desig...n and build software products for Cisco Systems as well as several startups, and is now trying to grow his own startup in the mobile space. Chandra's expertise is in cloud computing, security, and networking applications.
SQL Developer
Harrison has extensive experience building and maintaining web server applications of all shapes and sizes. The majority of his experience is in Ruby on Rai...ls, but he also has experience with many other languages as well. Harrison has a strong understanding of the entire stack of server-side technologies.
SQL Developer
With a dozen years of experience, Zafarbek is a passionate software engineer who has designed, implemented, and adopted technically sophisticated applicatio...ns mainly using the .NET platform. He also is a Microsoft Certified Solutions Expert in web applications and his strong practical background in IT, software engineering, and project management makes him extremely capable of working on projects of any size.
SQL Developer
Liam has 4 years experience in all things data, including data engineering roles, machine/deep learning projects, and the harnessing of the cloud computing... tools. With those three pillars of data, he develops powerful tools that can be applied to either business processes, strategic decision making, or consumer products.
Liam prides himself on strong two-way communication, alignment with client goals, and the highest standards.
SQL Developer
Isaac has experience developing and deploying machine learning solutions to problems across various domains including computer vision, signal processing, fa...ilure prediction, time series forecasting, network security, natural language processing, and 3D reconstruction. Isaac has worked in both small and large organizations and has led projects from idealization to product deployment.
SQL Developer
Dan is has been working in technology for 20 years and has worked with many large firms such as Oracle and Accenture, with startups and in his own business.... His technology focus as of late has been with e-commerce and full-stack web development and dev ops. Through his career, he has many opportunities to architect and deliver large scale solutions to clients but also has been able to stay hands-on with the technology throughout.
SQL Developer
Scott is a data warehouse architect and BI developer with 30 years of industry experience. He specializes in the Microsoft BI stack. He utilizes all aspects... including building data marts and data warehouses in SQL Server, ETL with SSIS, SSAS cubes, and creating reports and advanced analytics with SSRS and Power BI. He also has considerable cloud experience with Azure and has worked with Azure SQL Database and Azure Data Factory.
SQL Developer
Jim is an experienced full-stack web developer with experience from the full gamut of front page SPAs through back-end APIs and database design, most recent...ly concentrating on React powered apps. He also develops native MacOS applications, as well as deploying through Electron.
SQL Developer
Eleanor is an analytics professional with 7+ years of experience, mostly in financial services/quantitative research and more recently with a healthcare soc...ial network. She is proficient in Python and SQL and comfortable with a variety of other programming languages and analytical tools. Her academic background is in mathematics, and she is also experienced with more advanced analytical models and machine learning techniques.
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Migrating in either direction between Microsoft SQL Server and Oracle Database? This round of pitfalls to avoid includes coverage of sequences, identity columns, and filtered indexes.
Migrating in either direction between Microsoft SQL Server and Oracle Database? There are some significant pitfalls to be aware of...
SQL window functions are calculation functions similar to aggregate functions but, unlike normal aggregate functions like "group by," have access to individual rows and can even add some of their attributes into the result set. In this article, Toptal Freelance SQL Developer Neal Barnett explains the benefits of SQL functions, describes when you’d use them, and gives you real examples to help with the concepts.
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