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Yassir O. T.
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Yassir O. T.

Full Stack Dev | Cybersecurity SaaS & AWS Infrastructure

I build and maintain complex SaaS platforms for the cybersecurity industry — from API architecture and backend systems to frontend interfaces, containerized infrastructure, and cloud deployments on AWS. For the past 6 years, I have been the lead developer of a security awareness training platform used by organizations across multiple industries to defend against phishing, social engineering, and AI-generated threats. My core responsibilities include: • Designing and building RESTful API using PHP and the Laminas framework • Developing Vue.js 3 frontend integrated with PHP legacy systems • Managing asynchronous workloads through RabbitMQ message queues • Operating dual database architecture: MySQL for transactional data, DuckDB for analytical reporting • Deploying and maintaining all services in Docker containers across a shared network • Managing cloud infrastructure on AWS: EC2, S3, and Route 53 I also work with SciRev, an academic platform for the scientific community, expanding my experience beyond security into data-driven web applications. I work best on long-term engagements where I can develop a deep understanding of the product and contribute beyond just writing code — helping shape technical decisions, architecture, and roadmap priorities. If you are building or scaling a SaaS platform in cybersecurity, compliance, or enterprise software, I'd like to understand your project.

🇪🇸San Sebastian, Spain$65/hr100% JSS4.96 (31)Since Oct 2009

Earnings and projects

MRR
$1.3k

Last 6 months ÷ 6

World#37,126 / 412k
🇪🇸Country#366 / 4,023
Revenue, last 30 days
$1.2k

Last 6 months: $7.9k

World#37,275 / 412k
🇪🇸Country#333 / 4,023
Total earnings
$205k

Billed in all: $222k

World#14,784 / 412k
🇪🇸Country#199 / 4,023
Per project
$4k

$7.9k in the last 6 months

World#42,900 / 412k
🇪🇸Country#413 / 4,023
Projects, last 6 months
1
0% fixed100% hourly
World#128,092 / 412k
🇪🇸Country#1,171 / 4,023
Projects in all
51

Across 55 contracts

33% fixed67% hourly
World#59,936 / 412k
🇪🇸Country#552 / 4,023

Earnings, last 30 days

$222k+$1.2k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$220k$221k$222kOct 8Oct 23Nov 7

Skill rankings: Top 8% in MySQL

Ranked by MRR among everyone on Upwork with the skill.

  1. #12Cloud Implementation88 freelancers · 🇪🇸 #1Top 14%
  2. #18Laminas190 freelancers · 🇪🇸 #1Top 9%
  3. #58RabbitMQ552 freelancers · 🇪🇸 #2Top 11%
  4. #81Cybersecurity Management728 freelancers · 🇪🇸 #2Top 11%
  5. #213AWS Development1,478 freelancers · 🇪🇸 #3Top 14%
  6. #224Linux System Administration2,578 freelancers · 🇪🇸 #2Top 9%
  7. #517Git5,766 freelancers · 🇪🇸 #7Top 9%
  8. #603REST API5,062 freelancers · 🇪🇸 #3Top 12%