About me

Computer Scientist | Systems Engineer

Cryptography Researcher & Sr. Database Administrator
Owner/Founder at SQLEngineers

Master (with Distinction) in Advanced Computer Science at Loughborough University, England, UK (2018-2019). Bachelor (with Distinction) in Systems Engineering at National University of Trujillo, Peru (2003-2007). Certified Database Professional since 2005. Have a look at my Microsoft Certification Official Transcript here (Transcript ID: 710696 - Access Code: 71069600). I was awarded as Microsoft Data Platform MVP (January 2015 - July 2018). I have been an International Speaker and Technical Writer of SQL Server Administration tips for over 12+ years; a Contributor and Author at MSSQLTips.com; and the SQL PASS Peru Chapter Leader. In the event that you need more details about my experience, please feel free to contact me at contact@percyreyes.com.

I am a Senior SQL Server Database Administrator (DBA) with over 15+ years of extensive experience managing critical database servers running on SQL Server 6.5, 7.0, 2000, 2005, 2008, 2008 R2, 2012, 2014, 2016, 2017, and 2019.  Most importantly, I have an excellent command of all SQL Server Database Administration topics and I am also very passionate about SQL Server Internals. I am the owner of SQLEngineers, a company to provide 24x7 Remote SQL Server DBA services, which represents the best way to manage your databases proactively, cutting costs and improving the performance. In this sense, I am used to working with all sizes of databases for many multinational companies. In fact, I will make your database run significantly better, and so your mission-critical business applications will also run much better. It all means your business will run much better. For more information in detail you can have a look at DBA Services.

Besides my passion for database query processing and distributed database systems, I am mad keen on cryptography, algorithmic cryptanalysis, number theory, and algebraic aspects of cryptography. I have been a cryptography researcher since 2018, more specifically, doing research on cryptographic Boolean functions to prevent algebraic attacks. My latest research was about constructing Boolean functions to prevent the cube attack at Loughborough University, UK. More precisely, block ciphers and stream ciphers have to face multiple types of attacks such as differential attacks and algebraic attacks, respectively. These attacks exploits vulnerabilities in some properties of Boolean functions, so my studies are intended to work out some solutions to make these properties resistant to these attacks. Ideally, I make massive use of C programming language for cryptography.

Particularly, I am most comfortable in environments where things are constantly changing and evolving, and also personal freedom and achievement are emphasised. Likewise, my approach to work and life is driven by advancement, curiosity and solutions since I am an optimistic thinker who constantly adapts to new expectations. Thinking big, going global, questioning, and being open to change are part of my personality.

In addition, I am a down-to-earth man with a great personality and youthful enthusiasm, a bit chatty every so often and happy-go-lucky as well. Above all, I have got principles, and my most important attributes are integrity, honesty and trustworthiness. On the top of that, I am able to laugh at myself and always willing to do my best to achieve all my goals because I strongly believe in the beauty of my dreams. Correspondingly, I have no fear of failure, so I will give anything a go, within reason (of course!). Also, I am single-minded and sold on the idea of everything one can achieve depends on our determination and dedication. Finally, "Believe and you will find your way" is my most inspiring quote.

You can follow me online!

Twitter: http://twitter.com/percyreyes 
LinkedIn: http://pe.linkedin.com/in/percyreyes
Facebook: http://www.facebook.com/percyreyes


-In-depth knowledge and strong experience in Database Administration of SQL Server including installation and upgrade of the Database Engine and Client Tools, Allocation System Storage and planning future storage requirements for the database system, Backups/Restores operations, Indexing, Statistics, Integrity Checks, Database Maintenance, Database Reduction, Storage Engine, Replication, Monitoring, Optimization and Performance Tuning, In-Memory OLTP, Security and Compliance, Scalability, High Availability, Mirroring, Log Shipping, AlwaysOn, Failover Clustering, FileStream, Partitioning Very Large Tables, Disaster recovery, Troubleshooting, and internals issues
-In-depth Knowledge of Database Theory and SQL Server Internals
-In-depth Knowledge of Structured Query Language (SQL) and T-SQL
-Good understanding of Distributed Computing Architectures, e.g. Client/Server, Internet/Intranet.
-Good understanding of the underlying Windows Operating Systems 2000/2003/2008/2012/2016/2019.
-Good understanding of Storage Technologies, Memory Management, Disk Arrays, NAS/SAN, TCP/IP Networking
-Excellent communications skills. Ability to communicate with technical and non-technical audiences
-Excellent teamwork skills. Ability to handle pressure and conflict. I always keep my opinions open.
-Experience leading and mentoring technical staff. Care about quality of work
-Innate ability to take initiative, taking a proactive approach to work without close supervision
-High-performance working under the pressure of demanding deadlines
-Ability to simplify complex problems and resolve them quickly
-Good experience working with ITIL
-Good documentation skills

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