Toptal is a marketplace for top remote SQL developers. Top companies and start-ups in San Francisco choose Toptal SQL freelancers for their mission-critical initiatives.
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SQL Developer
Matthew is a natural leader who loves to solve problems and take the initiative. He has excellent verbal and writing skills and two Master's degrees. He enj...oys taking on tricky problems.
SQL Developer
Rayo has worked in the software industry since 1999, but his passion for writing software began when he started developing computer games at age 13. He has... taught Theoretical Computer Science at the Technical University of Berlin before successfully co-founding Linklift, a company in the SEO-space. He is a fullstack developer with back-end focus who loves to implement systems and constantly fine-tune his programming and architectural skills.
SQL Developer
Nhan is an engineer and entrepreneur, currently founding member and head of engineering at SeeSpace, Ltd.. He was the brains behind InAiR TV as well as havi...ng served as CTO for a crowdfunding platform and a Zappo's clone in Vietnam. Apart from being a great coder, Nhan is also a top-tier designer with a great sense for product. His skill set has made him suitable for any kind of work, from low-level high-performance codes to UI-centric apps.
SQL Developer
Frank is a full-stack developer with experience in Rails, React, Angular, and various supporting technologies including MySQL, Postgres, AWS, and Firebase.... He enjoys working in a test-first (TDD) workflow, on agile teams, preferably with a designer.
SQL Developer
Hafiz is a seasoned software architect who's lead complex software projects for last 12 years at organizations like Bing (Microsoft), Lyft, and Salesforce.c...om in full-time roles—now, he's pursuing a freelancing career. His areas of expertise are back-end/server development, databases, big data, cloud computing, DevOps, web crawling, and search engines.
SQL Developer
Hurshal has five years of experience designing, building, and supporting professional solutions for public companies, governments, and research institutions.... He's proud of his ability to quickly learn new environments and deliver well-documented, concise, and bug-free software. Hurshal enjoys the challenge of building new prototypes, safely revamping production applications, or integrating with teams to implement features for developing projects.
SQL Developer
Since 2013, Alexander has been in the software development field. He has about a dozen apps in production with over a million monthly users. Most recently,... he's created a merchant onboarding experience for Affirm—bringing about a 25% increase in the number of merchants year over year (YOY).
SQL Developer
Senior data engineer, software engineer, DBA, on Cloud, Linux, AWS, GCP, Snowflake, Hadoop, and almost all database platforms. Lead and contributed to eComm...erce and self-driving startups as well as world largest brokerage, retail, semiconductor, communication, network, and storage enterprises on the data analytics, ETL data pipeline, transaction processing, self-driving, and data science teams.
SQL Developer
A data scientist and data engineer, Ryan can take projects from concept to deployment. He is a machine learning expert with a knack for impactful data visua...lizations. Ryan has collaborated with innovators in diverse fields, presented at tech conferences, and co-authored groundbreaking research papers in respected journals such as the Lancet. He is also the author of a popular autonomous vehicle project on GitHub.
SQL Developer
I help improve businesses using data.
This often means empowering data-driven decision making, process automation, and optimizing performance through ana...lysis, engineering, and the development of intelligent systems. I have 6 years of industry experience working with data science, engineering, product, and marketing teams and love working collaboratively to achieve big-impact results which delight customers and business partners.
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All of our talent are seasoned experts who ramp up quickly, readily contribute as core team members, and work with you to minimize onboarding time.
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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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