Skip to content
BackNov 7
Margarita  K.
Upwork badge

Margarita K.

Full-Stack Developer marketplace | React | PHP Laravel | Python

Hi there! 👋 I am a performance-driven full-stack developer and app developer dedicated to building custom web applications that solve real-world business challenges. I specialize in transforming complex ideas into scalable, user-centric systems, from multi-vendor marketplaces to high-load internal dashboards and SaaS developer solutions. Whether you need an expert front-end developer for a stunning interface or a python full stack developer for complex data processing, I deliver robust, production-ready software. What I bring to your project: • SaaS & Marketplace Expertise: End-to-end app developer services for secure, multi-vendor platforms and cloud-based applications. • Front-End & Creative Design: As a skilled react developer, I craft seamless user interfaces, combining clean code with professional web design principles. • Data Intelligence & AI: Proven experience in building SQL-integrated sales dashboards, maintaining complex dynamic directories, and integrating Machine learning models for smart automation. • Modern Tech Stack: Expert-level command of Laravel, MySQL, PHP, Python, and React. I can also act as your wordpress developer for content-heavy web projects and corporate portals. • Architecture First: I focus on clean data structures and long-term maintainability so your technology simplifies operations rather than complicating them. 🧩 The Power of Greenice: Agency-Backed Reliability While I am your primary point of contact, working with me gives you the stability and resources of Greenice (est. 2007). This means your project is backed by a battle-tested engineering culture and a full-cycle team, saving you from hiring a separate web design agency or freelance specialists: • Comprehensive Support: Direct access to dedicated UI UX designers, DevOps, and QA specialists whenever needed to ensure premium UI UX standards. • Advanced Tech Capabilities: Team expertise spanning from Machine learning algorithms to HIPAA-compliant systems, advanced CRMs, and global HealthTech products. • Risk-Free Start: We provide a FREE prototype before development begins—see your vision and web design in action before a single line of code is written. • Peace of Mind: 3 months of post-delivery support included to ensure a smooth transition. 🚀 Let’s build a solution that works beautifully today and scales confidently tomorrow. Message me to discuss your project!

🇺🇦Kyiv, Ukraine$35/hr100% JSS3.98 (4)Since Nov 2021

Earnings and projects

MRR
$73

Last 6 months ÷ 6

World#142,697 / 412k
🇺🇦Country#5,174 / 14.3k
Revenue, last 30 days
$119

Last 6 months: $441

World#89,909 / 412k
🇺🇦Country#3,303 / 14.3k
Total earnings
$77k

Billed in all: $80k

World#51,353 / 412k
🇺🇦Country#3,257 / 14.3k
Per project
$9.7k

$147 in the last 6 months

World#16,561 / 412k
🇺🇦Country#1,165 / 14.3k
Projects, last 6 months
3
0% fixed100% hourly
World#66,481 / 412k
🇺🇦Country#2,681 / 14.3k
Projects in all
8

Across 10 contracts

0% fixed100% hourly
World#223,562 / 412k
🇺🇦Country#8,901 / 14.3k

Earnings, last 30 days

$80.1k+$119 earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$79.9k$80.0k$80.1kOct 8Oct 23Nov 7

Skill rankings: Top 23% in jQuery

Ranked by MRR among everyone on Upwork with the skill.

  1. #8RealityKit21 freelancers · 🇺🇦 #2Top 38%
  2. #59App Marketplace156 freelancers · 🇺🇦 #2Top 38%
  3. #84AI Marketplace154 freelancers · 🇺🇦 #4Top 55%
  4. #2,021jQuery8,973 freelancers · 🇺🇦 #229Top 23%
  5. #2,071Vue.js8,267 freelancers · 🇺🇦 #253Top 25%
  6. #2,301Ecommerce Website6,126 freelancers · 🇺🇦 #91Top 38%
  7. #2,366CSS 39,914 freelancers · 🇺🇦 #296Top 24%
  8. #3,435Laravel12,549 freelancers · 🇺🇦 #234Top 27%