Diego Hellas Email & Phone Number

State Of Santa Catarina, Brazil

Florianópolis, Santa Catarina

Responsible for the entire development process of PDB Monitor.PDB Monitor is a database monitoring tool and therefore involves work in several different areas, such as: - Planning what will be monitored, how to collect the information, processing and display it on screen. - Agent architecture and development - Architecture of APIs that receive data from the agent and provide data for the frontend - End-to-end infrastructure architecture - Database planning, high availability strategies, redundancy, backup management and data modeling of PDB Monitor

Montreal, Canada Area

Florianópolis Area, Brazil

PerformanceDB is a company specialized on MySQL offering qualified solutions for support and corporate IT infrastructure. It provides personal support not only in Florianopolis and the region, but also throughout Brazil helping companies to organize and integrate their IT systems with databaseMySQL. With a Vanguard team of highly competent people, it is a company committed to service with excellence so our customers can focus on their results.Services Offered by the PERFORMANCEDB: Management of servers;Consulting;Configuration and tuning;Backup and Restore;Replication;Service for emergency situations;Remote assistance or in person;Training;Technical support with SLA 24x7;Annual Contract Management and Support for small, medium and large companies. Supported Technologies by PerformanceDB: MySQL/MySQL Replication/MySQl Cluster/MySQL Cluster Galera MariaDB/MariaDB Cluster/MariaDB Multi Source Replication;MongoDB;Pentaho.

Florianópolis Area, Brazil

Responsible for the development team, IT budget, definitions on technology and strategic definitions.

Florianópolis Area, Brazil

· Maintain and administer MySQL and CouchDB instances; define/recommend/implement proactive changes based on monitoring data· Configure monitoring and alerts for MySQL and CouchDB instances; develop related reports· Identify query tuning issues, analyze and recommend solutions· Architect and implement database backup/recovery, high availability, fault tolerance, multi-data center synchronization· Develop database capacity requirements· Work with developers and other staff to develop and reactor high-performance database designs and instance configurations· Document database design and instance configuration· Script and support automated data movement, data refresh, performance/issue reporting, etc.· Evaluate database/data store products on capabilities and suitability for use· Large-scale data movement and validation· Optimize queries and suggest improvements to schema· Write and/or modify SQL scripts including stored procedures, functions and views· Create, maintain and manage BI and Big Data platforms· Handle requests for data

Florianópolis

Responsible for databases MySQL, MariaDB, SQL Server, Oracle, PostgreSQL and MongoDB.Do daily administration and monitoring of database servers, data modeling, documentation, backup and restore routines, tuning, replication, as well as support to the development team and data extraction for non-routine reports.For 1 year I was responsible for the management, maintenance and development of the BI solution using the Pentaho tool.I am a member of a team of 5 people responsible for the architecture, performance and HA software of DOT Group.Activities and Projects: The DOT Group consists of several companies, where the main areas are EAD (Distance Education), advertising and BIG Data. Project 1: There were 5 database MySQL servers scattered, with different configurations and versions. After analyzing and perform a lab set up two servers with the same with a MASTER-MASTER replication. With this change we gain time on maintenance, improvement in monitoring, redundancy and scalability.Project 2: At any given project there was the need to have multiple database servers around where they should work in offline mode (without internet) and when there is internet connection these data should automatically synchronize with a central database and replicate with other servers, initially this would be done via software, but after I be involved in the project, I conducted some research and laboratories and implement MariaDB with Multi-source Replication where all online control / offline is realiado the database itself. With this solution it was not necessary to change any line of code in software. The total size of servers involved in the Multi-source replication is 300.

Florianópolis Area, Brazil

Responsible for coordinating the development teams and infrastructure on the maintenance and development platform of Advertising Network. The tool used was OpenX (recentliy renamed to Revive) developed in PHP. The tool serving advertising to 20 million users daily and displayed more than 1 billion advertisements per month. The cluster MySQL achived 110 mil queries per second. I worked directly with Linux servers which I have a lot of knowledge about it.

Florianópolis Area, Brazil

Administration and database planningMySQL e MySQL Cluster, Backup and restore routines, performance evaluation and tuning, creating function, triggers and stored procedures. Database administration, SQL Server and MongoDB.

Curitiba

Responsible for databases MySQL, MySQL Cluster and Membase( today is CouchDB) used in projects of Social Games Quepasa (US Social Network , now known as MeetMe). In my daily activities used to management and monitoring of database servers , data basing , documentation, backup and restore routines , tuning , replication, as well as support the development team PHP. As a sideline I coordinated the infrastructure team, where I performed testing and seek new solutions also be responsible for maintaining the games online under any circumstance All the infrastructure was in AWS , there we used resources such as EC2, RDS, AutoScaling, IOPS Provisionado, Elastic Load Balancing, S3 e CloudFront. I was also responsible for create all the games deploys, which of course it involved a very large logistics.

Curitiba Area, Brazil

I was Member of the PHP development team, which performed maintenance and development of a platform for social games. This platform was able to hold each integration, with social networks Orkkut, Quepasa, MySpace, Bolsa de Mulher through the Open Social and with Facebook and Twitter through the API specific of every social network. As a secondary activity I used to perform the maintenance of the data base MySQL. The Techfront was acquired by Quepasa, on this change I was relocated to be responsible for the databases and infrastructure

Curitiba Area, Brazil

I was responsible to Teach classes, develop and validate teaching materials for training of PHP, MySQ, AJAXL,Object orientations, WEBStandards and SQL Server.