Toptal is filled with tons of smart, capable, hardworking people from all around the world. Highly recommended! Any data written to the database must be valid according to all defined rules, including (but not limited to) constraints, cascades, triggers, and any combination thereof. MapReduce libraries have been written in many programming languages, with different levels of optimization. Airbnb, Zendesk, Pfizer and other interesting companies use Toptal to find workers which is great. He is competent, professional, flexible, and extremely quick to understand what is required and how to implement it. Data Entry. The developer I'm working with not only delivers quality code, but he also makes suggestions on things that I hadn't thought of. Interestingly though, in practice, performance of cache oblivious algorithms are often surprisingly comparable to that of cache aware algorithms, making them that much more interesting and relevant for big data processing. The solution they produced was fairly priced and top quality, reducing our time to launch. Toptal is a marketplace for top data analytics and big data experts. You'll work with engineering experts (never generalized recruiters or HR reps) to understand your goals, technical needs, and team dynamics. He's an architect in innovative tech initiatives that add to and accelerate business revenue streams. 5 stars for Toptal. He's also the CTO and lead developer of Toon Goggles—an SVOD/AVOD kids' entertainment service with 8 million users. Upwork is the most popular website used by employers to hire freelancers for all types of work. Designed around the concept of a "document"; i.e., a single object encapsulating data in some standard format (such as JSON, XML, etc.). In Higgle's early days, we needed the best-in-class developers, at affordable rates, in a timely fashion. When analyzing big data, processing the entire dataset would often be operationally untenable. This ensures that employers get the best candidates to fill in their open positions. Our platform hosts a very diverse range of skill sets, experiences, and backgrounds. For instance, the raw results could simply be stored in HDFS and the batch views might be pre-computed with help of Pig jobs. As a start up, they are our secret weapon. We needed an experienced ASP.NET MVC architect to guide the development of our start-up app, and Toptal had three great candidates for us in less than a week. He has expertise with R, SQL, MATLAB, SAS, and other platforms for data science. The questions that follow can help evaluate this dimension of a candidate’s expertise. They also have several years of experience building data visualization, data mining, and data management applications. His obsession has grown to include a love for solving complex problems across a full spectrum of technologies. It used to be hard to find quality engineers and consultants. While sometimes it is indeed necessary, in many cases the actual flow could be optimized, as some of the jobs could be joined together or could use some cache that would reduce the need of joins and in effect increase the speed significantly. Consistency. The developers have become part of our team, and I’m amazed at the level of professional commitment each of them has demonstrated. In just over 60 days we went from concept to Alpha. Toptal provided us with an experienced programmer who was able to hit the ground running and begin contributing immediately. Another disadvantage of the cache oblivious approach is that it typically increases the memory footprint of the data structure, which may further degrade performance. It's free to sign up and bid on jobs. Brewer’s theorem) states that it’s impossible for a distributed computer system to provide more than two of the following three guarantees concurrently: In the decade since its introduction, designers and researchers have used the CAP theorem as a reason to explore a wide variety of novel distributed systems. Toptal gives me the opportunity to work on challenging projects in Artificial Intelligence and Data Science. Not having to interview and chase down an expert developer was an excellent time-saver and made everyone feel more comfortable with our choice to switch platforms to utilize a more robust language. The first step to ‘how to get a job from a client?’ is to understand what does ‘a client needs?’ One may in general terms see clients of two kinds: 1. Of the more than 100,000 people who apply to join the Toptal network each year, fewer than 3% make the cut. We will continue to use Toptal. Toptal is a marketplace for top big data architects. However, it is important to acknowledge that this lack of any cache-size-specific tuning also means that a cache oblivious algorithm may not perform as well as a cache-aware algorithm (i.e., an algorithm tuned to a specific cache size). This simply would not have been possible via any other platform. A Toptal director of engineering will work with you to understand your goals, technical needs, and team dynamics. It was so much faster and easier than having to discover and vet candidates ourselves. Pig, Hive, and Impala are examples of big data frameworks for querying and processing data in the Apache Hadoop ecosystem. Toptal Projects enabled us to rapidly develop our foundation with a product manager, lead developer, and senior designer. Create your profile and make a creative gig. Experience in scalability issues, system administration, and Toptal found us great. 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