Efrain J B.
Database Consultant
I've worked on database systems for the last 18 years. I started working with DB2 on the mainframe and Sybase on Unix systems. I have experience with replication across multiple systems. I specialized on installation, performance and tuning, troubleshooting, monitoring and alerting and also backup and recovery. I then worked on Sybase on Linux and more recently I've worked with PostgreSQL on Linux. I've worked in the utility, financial, software and e-commerce areas. I aim to identify any issues or areas of improvements and addressing them as quickly as possible. I'm very comfortable using bash scripting to achieve the desired outcome. I'm also a fluent Spanish speaker.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $178
Billed in all: $12,566$13k
$178 in the last 6 months
Across 26 contracts
Earnings, last 30 days
Skill rankings: #1 in 1 skill of 10
Rarest: top 13% in SAP Sybase Adaptive Server Enterprise, of 8. Ranked by MRR among everyone on Upwork with the skill.
- SAP Sybase Adaptive Server Enterprise8 freelancers · 🇺🇸 #1Top 13%🇺🇸#1 of 1
- #19IBM Db265 freelancers · 🇺🇸 #4Top 29%🇺🇸#4 of 9
- #61Data Backup191 freelancers · 🇺🇸 #8Top 32%🇺🇸#8 of 23
- #138Bash Programming572 freelancers · 🇺🇸 #17Top 24%🇺🇸#17 of 88
- #386Data Modeling1,203 freelancers · 🇺🇸 #75Top 32%🇺🇸#75 of 228
- #453Performance Optimization1,100 freelancers · 🇺🇸 #43Top 41%🇺🇸#43 of 104
- #657Troubleshooting1,460 freelancers · 🇺🇸 #65Top 45%🇺🇸#65 of 159
- #744Scripting2,145 freelancers · 🇺🇸 #131Top 35%🇺🇸#131 of 386