David H.
Datatekniker
Canada
Betroet medlem siden 2023
25 års erfaring
David har effektivt monitoreret store produktionsmiljøer i løbet af sin karriere, implementeret robuste disaster recovery-løsninger og automatiseret kritiske processer.
David har også færdigheder inden for ydeevnetilpasning, datastyring og overvågning af databasesundhed, hvor han bruger værktøjer som DataDog, Nagios og Munin.
Han har også ekspertise i scripting og programmeringssprog som Bash, PHP og SQL og har erfaring med teamledelse og rettidige projektleveringer.
David et værdifuldt aktiv for enhver organisation, da han har bred teknisk viden og strategiske problemløsningsevner.
Hovedekspertise
Data Engineering15 år
SQL21 år
PHP20 år
Team Leading15 år7+
Erfaring9
Database Administrator
LexisNexis Risk Solutions•
Dec 2023 · 2å 10mInsurance
- Managed and maintained critical database systems on a contract basis.
- Ensured high availability, performed performance tuning, and maintained database security.
- Monitored database health, executed backups, and supported disaster recovery processes.
- Collaborated with cross-functional teams to optimize data workflows and support business operations.
MySQLSQL
Oracle
ETLDatatekniker
Pason Systems Inc.
Apr 2010 · 16å 6m- Administration af MySQL Percona-produktionsservere i et 26TB-replikeret miljø til boredata, der omfatter tusindvis af databaser (med millioner af tabeller).
- Automatisering af et fragmenteret databasesystems balancering ved overførsel af meget brugte databaser til noder med mindre volumen og arkivering af ældre data (over 200 databaser dagligt).
- Sikring af høj tilgængelighed af databaser gennem ProxySQL og Orchestrator.
- Etablering af geografisk spredte databaseinstanser til disaster recovery.
- Gennemførelse af månedlige tests med henblik på målsætninger for recovery point og recovery time ved hjælp af Terraform.
- Brug af DataDog til varsler, monitorering af databasens sundhed, analyse af forespørgsler og styring af automatiserede jobs.
Senior Database Administrator (MySQL)
Pason Systems Inc.•
Apr 2010 - Dec 2023 · 13å 8mEnergy and Utilities
- Managed MySQL Percona production servers in a 26TB replicated environment for drilling data, encompassing thousands of databases and millions of tables.
- Automated the balancing of a sharded database system by redistributing heavily used databases to lower-volume nodes and archiving older data, processing over 200 databases daily.
- Ensured high availability of databases through the implementation of ProxySQL and Orchestrator.
- Established geographically distributed database instances to support disaster recovery and business continuity.
- Conducted monthly testing of recovery point and recovery time objectives using Terraform.
- Utilized DataDog for alerting, database health monitoring, query performance analysis, and automated job management.
MySQL
Terraform
InfluxDB
DataDogELT
3+
Datatekniker
Echostar Technologies
Aug 2008 - Mar 2010 · 1å 7m- Administration af 5 MySQL-produktionsservere i et replikeret miljø på 10-terabyte, der registrerer sundhedsdata fra set-top-bokse, som udvides med 14 til 17 gigabyte dagligt.
- Oprettelse af et system til databasevarsler til monitorering af database- og serversundhed, master/slave-balance, dataintegritet, benchmarking og profilering.
- Oprettelse og godkendelse af database-, tabel- og forespørgselsstrukturer til indlejrede SQLite-systemer, der bruges i millioner af set-top-bokse.
- Tilsyn med og hjælp til alle andre MySQL-instanser, der bruges i forskellige afdelinger.
- Udarbejdelse af og undervisning i SQL-kurser for medarbejdere, der arbejder med SQL.
Database Administrator
Echostar Technologies•
Aug 2008 - Mar 2010 · 1å 7mTelecommunications
- Managed five MySQL production servers in a 10TB replicated environment recording set-top box health data, with daily growth of 14–17GB.
- Maintained and updated the data warehouse; modeled and designed new tables in production; optimized existing tables to meet reporting needs and improve performance (up to 30× faster in some cases).
- Created a comprehensive database alert system to monitor server health, master/slave balance, data integrity, benchmarking, and profiling.
- Designed and approved database, table, and query structures on embedded SQLite systems deployed in millions of set-top boxes.
- Oversaw and supported all MySQL instances used across various departments.
- Developed and delivered SQL training courses for employees interacting with databases.
MySQLOracle
SQLiteETL
Datatekniker
SubscriberBASE
Jun 2007 - Jul 2008 · 1å 1m- Administrerede 11 MySQL-servere, herunder syv sekundære servere i et replikeret miljø for en online medievirksomhed.
- Brugte Nagios, Munin, Trac og MySQL proxy til ydeevnemonitorering, datastyring, servertilpasning, lastbalancering, backup og gendannelse, brugerprofiler og projektstyring.
- Udviklede et databasepanel til monitorering af databasens og serverens tilstand samt udførte benchmarking og profilering.
- Udførte et LAMP-baseret datalagerprogram med et rapportværktøj og fuldautomatiske ETL-processer.
Database Administrator
SubscriberBASE•
Jun 2007 - Jul 2008 · 1å 1mTelecommunications
- Managed 11 MySQL servers, including 7 secondary servers in a replicated environment for an online media company.
- Utilized Nagios, Munin, Trac, and MySQL Proxy for performance monitoring, data management, server tuning, load balancing, backup and recovery, user management, and project oversight.
- Developed numerous automated data management scripts using Bash and PHP.
- Modified server configurations to boost performance for business units and streamline data management.
- Created a database panel to monitor server and database health, benchmarking, and profiling.
- Built a LAMP-based data warehouse application with a report builder and fully automated ETL processes.
PHPMySQL
BashETL
Database Administrator
Excel Telecom•
Jun 2006 - May 2007 · 11mInternet of Things (IoT)
- Administered MySQL, Oracle, SQL Server, and Sybase databases in an 8TB environment.
- Conducted performance benchmarking and tuned MySQL to improve system performance.
- Resolved issues related to I/O contention, file operations, memory management, and stored procedures.
- Played a key role in migrating data from multiple Oracle and Sybase instances to a MySQL replication setup handling millions of daily transactions.
- Developed numerous stored procedures and automated scripts in Bash and PHP for database monitoring, data management, user management, backup and recovery, and ensuring 24/7 availability.
PHPMySQLSQLOracleBash
PL/SQLSQL Database Administrator / Programmer
FilmStew•
Mar 2000 - May 2006 · 6å 2mEntertainment and Media
- Managed a small programming team, editorial team, data entry team, and contracted graphic designers to support FilmStew.com operations.
- Administered SQL Server and MySQL databases, handling creation, normalization, optimization, warehousing, security and encryption, backup and recovery, tuning, and activity monitoring.
- Developed the website using storyboards, translating requirements into tasks, performing QA/testing, and managing programming projects.
- Utilized PHP, Classic ASP, JavaScript, XML, AJAX, and HTML for web development.
- Built a content management system and accountability reporting tools for data entry processes.
- Oversaw daily email, networking, internal and web security, and server management.
PHPMySQL
JavaScript
HTMLSQL2+
Ingeniørmæssig fremragendehed
Alle Datateknikerer, der har ansøgt til Proxify, får en score fra 0 til 300 på teknisk dygtighed, en af de fem parametre, vi evaluerer. Denne score afspejler kun teknisk dygtighed baseret på interviews, hjemmeopgaver, live kodningssessioner og/eller vurderinger af præstationer på jobbet. Kurven viser, hvordan alle evaluerede Datateknikerer er fordelt over dette interval, hvor vores acceptgrænse for denne parameter ligger, og hvor David står.
David
Score 209 · Top 5% of engineers
Score 209 · Top 5% of engineers
Uddannelse
University of Calgary
BA1989 - 1992Stop med at søge.
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