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Alejandro A.

Alejandro A.

Java Senior Developer | Technical Leader

Systems engineer with experience and deep interest in software analysis, design, and development technologies, methodologies, and techniques, as well as artificial intelligence. 14+ years of experience building web applications around the Java programming language (Spring Boot, Spring MVC, Kotlin, Java Server Faces (Primefaces), JPA (Hibernate), Enterprise Java Beans, Struts, Oracle ADF), backed by relational databases such as Oracle DB, MySQL, PostgreSQL, and SQL Server. Proactive, analytical, and focused on quality, performance, and development best practices. Experience with Front-End technologies (HTML5, CSS3, Javascript, React), cloud services (AWS), and other backend languages/frameworks such as Python, C/C++, and Node.js. Experience leading technical teams of up to 8 engineers on banking and insurance projects for national and U.S.-based companies, with a focus on high-availability backend systems. Master's degree in IA student (currently)

🇨🇴Bogota, Colombia$34/hr90% JSS5.00 (13)Since May 2024

Earnings and projects

MRR
$3.1k

Last 6 months ÷ 6

World#12,278 / 412k
🇨🇴Country#135 / 4,578
Revenue, last 30 days
$0

Last 6 months: $18k

Total earnings
$160k
World#21,442 / 412k
🇨🇴Country#146 / 4,578
Per project
$23k

$18k in the last 6 months

World#4,780 / 412k
🇨🇴Country#52 / 4,578
Projects, last 6 months
1
0% fixed100% hourly
World#128,092 / 412k
🇨🇴Country#1,261 / 4,578
Projects in all
7

Across 13 contracts

0% fixed100% hourly
World#236,188 / 412k
🇨🇴Country#1,512 / 4,578

Earnings, last 30 days

$160kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$158k$160k$162k$164kOct 8Oct 23Nov 7

Skill rankings: Top 3% in CSS 3

Ranked by MRR among everyone on Upwork with the skill.

  1. #5JetBrains IntelliJ IDEA43 freelancers · 🇨🇴 #1Top 12%
  2. #9Apache Maven156 freelancers · 🇨🇴 #1Top 6%
  3. #9Gradle81 freelancers · 🇨🇴 #1Top 11%
  4. #12Spring Data102 freelancers · 🇨🇴 #1Top 12%
  5. #14Spring Security248 freelancers · 🇨🇴 #1Top 6%
  6. #17J2EE239 freelancers · 🇨🇴 #1Top 7%
  7. #117Spring Boot2,150 freelancers · 🇨🇴 #2Top 5%
  8. #153Microservice2,217 freelancers · 🇨🇴 #1Top 7%