Leonid Backend Developer

  • Kyiv, Ukraine

ID: 38029

About Me

R&D Devops - Playtech I'm experienced IT team-lead with deep knowledge in building computer networks of any complexity, in building server-side technologies, implementation and retrieval data from any failed Storage Area Network, in building monitoring systems and backup systems, virtualization, database construction and introduction of automation projects for companies. Also I have extensive experience in implementing VOIP technology. Deep knowledge of Linux (CentOS, RHEL 6/7). Current main focus is on web technologies configuration.

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Skills description

DevOps
How about professional high-skilled developers with a strong knowledge of software operation management? Here they are! Introducing DevOps Developers – modern and dedicated IT-magicians who really can develop perfect software solutions and maintain, update or renovate them on the spot! Professional DevOps movement emerged when industry professionals understood that it is extremely useful not only to develop a customizable software for a company, but also make the updating process, as well as brand new releases producing, much easier. Combining the creative development process itself with the future software operation planning, DevOps technology can help to design the most optimized solution for companies whose main resource is a software they work with everyday. DevOps Developers look like modern IT-wizards with comprehensive software development and support skills. All the Senior DevOps Developers you may find here are recognized professionals with years of related and versatile experience. Besides the Experienced DevOps Developers, you may hire specialists in 86 other technologies. All of them already have surprisingly good portfolio!
MySQL
Well, it’s MySQL! The most popular thing within the database world. Did you ever know that even Apple use it as their main database ground? That might sound incredible considering Apple security level but still, it is true! MySQL was developed by "TLC" in order to improve very large databases processing performance. MySQL DBMS was created as a strong non-commercial alternative to other commercial-oriented systems. MySQL was originally quite similar to the simple mSQL system. During the long time, it was expanding constantly, that is why MySQL is probably the most optimized and errors-free DBMS now. It is used primarily for creating dynamic databases for web pages because of its excellent language support. Highly Qualified MySQL programmers are the professionals who may really know how to set up any database in an appropriate way. Each of the Full Stack MySQL developers presented on the AOG has enough experience to help you with your databases. Also, they may join your project as technical specialists if you want. MySQL Freelancers are available around the clock, so you can choose the appropriate timelines and deadlines to make the cooperation more convenient.
.NET
.NET is a software technology proposed by Microsoft as a platform to create both traditional desktop programs and web applications. To some extent, it is an enhanced continuation of the ideas and principles we know from Java. One of the ideas is that .NET compatible services may be fully written in different languages. Besides, .NET is a versatile cross-platform technology. For now, there are at least Microsoft Windows version called FreeBSD and the option for Linux, named DotGNU. Considering that these two operating systems are extremely popular among the developers, NET Framework tends to become one of the core professional competencies of backend developers. Most of modern digital outsourcing companies have whole teams of Middle NET Developers and, of course, Highly Skilled Senior NET Developers. NET teams work on the producing different software solutions using outstanding .NET framework. Choosing the NET developer, you may be absolutely sure that you will get a perfect technology master, previously interviewed by AOG’s recruiters! The most striking advantage of the system is an easy user interface and a wide set of different plugins for a website customization. Professional Full Stack Umbraco developer can create a complete and stable web resource with a broad functionality using Umbraco. Besides offering a high level of system security, Umbraco is a very versatile open-source instrument and that is why so many developers constantly use it as their main website development instrument. Our main talents location is Eastern Europe – a new heart of IT-industry! Both Middle and Senior Umbraco Developers are available for you. Choose a good executor using our TOP high skilled Umbraco Freelancers list!
PHP
PHP is one of the most common languages used in web development (including Java, .NET, Perl, Python). PHP is supported by the overwhelming majority of hosting providers and its code can be even embedded directly into the html-code pages. PHP libraries are built for different databases including MySQL, PostgreSQL, Oracle, Hyperware, Informix, InterBase and Sybase. Probably it is one of the reasons why PHP is so popular. In general, almost every experienced backend programmer should have a fluent knowledge of PHP. It is a basis, which allows the BackEnd PHP developer create nice working web applications, or develop a customized CMS for websites of different complexity. In addition, a good Full Stack PHP Developer can create additional plug-ins to customize an existing CMS such as Drupal. All the interviews with potential executors are free, no hidden fees or commissions. You pay only for what is already done! ;) That’s AOG, welcome!
Python
The “Python” name was borrowed from the TV show called Monthly Python and a language itself was developed in 1990. Python supports different programming modules and packages that promotes modularity and smart code reuse. Python interpreter and standard libraries are fully available for all the major platforms in compiled and original versions. Python authors were guided by a philosophy of simplicity and immediacy, as an unwavering guarantee of quality. Python’s philosophical paradigm implies a harmony, beauty and an avoiding of excessive complexity. That's why Python is considering as one of the most easiest programming languages and as the very prospective one. The so-called generation of Python is quite young and very progressive. This is why even highly qualified Python developers are still quite young, but ambitious professionals. Python freelancers have an experience in the complex implementation of dynamic interactive web sites and web applications. Python has no limits, so Full Stack Python developers professionalism is limitless too. AOG offers you to work directly with the Python developer and our managers will help you 24/7!
SQL
If HTML is a basis of frontend programming, then the SQL is a key to the deep database programming and managing of almost every existing DBMS. Using this language, you can manage different data, filter and analyze information even in very large volumes. In general, SQL first appeared in 1974, but it is still widely used by programmers who work with different databases platforms such as MySQL, because of its versatility and uniqueness. Did you know that a well-known Microsoft Access application is also based on the SQL? Yes, SQL is much closer than it seems. It’s everywhere! Typically, experienced SQL developers are working with multiple platforms and databases systems. It is an incredibly big advantage! You can hire a highly qualified SQL database developer and get an expert advice from him or simply involve him in your project as a BackEnd SQL Freelancer. During one week you can test your candidate and if he will not satisfy you, we will replace him for another one without any difficulties!
MongoDB
MongoDB is database management system that doesn't require a circuit description tables. MongoDB occupies a niche between fast and scalable systems that operate data in the key-to-value form and relational DBMS which are more convenient in queries forming. MongoDB code is written using C ++ and distributed under the license “AGPLv3”. The main conceptual advantage of the system is quite flexible language of queries forming. Information storage and documentation language used in the system is much more productive than others. It may allow you to use resources much more efficiently and comfortably while managing the data sets. Database programming is a very specific IT-field. That is why you may need a highly experienced Mongodb freelance developer to get your DB tasks done. Obviously, if you are rapturously planning to offer a great code challenge, it would be probably better to hire a Middle or Senior Mongodb Developers ;) On the AOG we use sign the contracts in the English jurisdiction, so the freelance developers contracting processes are absolutely secure and trustworthy.
QA
Everyone who is expecting to get a professionally created software should take the services of professional QA Specialists. QA is a process of testing, inspection and resuming the requirements which are needed for the final end-product improvement. Once your product is ready, or nearly ready, it should be quickly transferred to the professional QA freelance engineers for the QA-audit. Highly-qualified QA Freelancers will carry out all the required operations in order to identify shortcomings, errors or inconsistencies with your own terms of reference. This data will be sended to the developers, so they will improve all the problematic gaps and you will get a perfectly working software! Most Full Stack QA Specialists you see on AOG have experience in large comprehensive projects for corporate clients based in the USA and even worldwide! Younger professionals were involved in local projects of medium complexity, so you can be strongly confident in the professionalism of your potential QA Ninjas!

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