SaaS Billing Platform Refactor
Eva improved our architecture and reduced billing errors fast. Clear communication throughout and delivered ahead of schedule. Five stars.
Hourly Rate
$34 / Hr
Total Earned
$36,902
Experience
14 Years
Skills
- JavaScript
- TypeScript
- React
- Node.js
- Python
- REST APIs
- PostgreSQL
- AWS
Senior Full Stack Developer
I am Eva Kaminski, a senior full stack developer with 8 years of experience building modern web applications and digital products. I specialize in designing scalable back-end systems, intuitive front-end interfaces, and reliable API integrations. I have worked with startups and established teams to deliver clean, maintainable solutions that support business growth. My approach combines strong engineering practices, clear communication, and a focus on performance, security, and usability.
Reviews
16 reviews on file.
E-commerce Checkout Optimization
Checkout speed improved noticeably after Eva's work. Her code was clean, tested, and easy for our team to maintain. Excellent experience.
Mobile Fitness App Backend
Eva built a reliable API for our mobile app and handled deployment smoothly. She solved edge cases we had not considered. Highly recommended.
Healthcare Patient Portal Upgrade
Eva delivered secure, thoughtful improvements to our portal. Communication was consistent and the final release was smooth. Five-star developer.
CRM Workflow Automation Build
Eva automated our sales workflows exactly as requested. She understood the business needs quickly and shipped dependable code on time.
Executive KPI Dashboard Redesign
The dashboard is faster, clearer, and easier for leadership to use. Eva was responsive, precise, and great at translating feedback into results.
AI Document Processing Tool
Eva integrated the AI pipeline cleanly and improved accuracy with smart validation steps. Great problem solver and very professional.
Fintech Transaction Monitoring System
Eva handled complex data flows with care and delivered a stable monitoring system. Her attention to security and reliability was impressive.
Marketplace Vendor Portal Launch
Eva built the vendor portal quickly without sacrificing quality. She kept us updated, handled changes well, and made launch day stress-free.
Hotel Booking System Integration
Eva connected our booking engine with multiple third-party services flawlessly. Timely delivery, great documentation, and clean implementation.
Social Community Moderation Features
Eva added moderation tools that made our community safer and easier to manage. She was thoughtful, responsive, and technically strong.
IoT Device Management Console
Eva created a stable console for monitoring devices in real time. She handled tricky data issues and delivered a polished result.
Retail Analytics Data Pipeline
Our reporting became much more reliable after Eva rebuilt the pipeline. She explained tradeoffs clearly and wrote excellent production code.
EdTech Learning Progress Tracker
Eva delivered a clean progress tracking system that teachers love. She was organized, communicative, and quick to address feedback.
Real Estate Search Platform
Eva improved search speed and filtering accuracy across our listings. The work was on time, well tested, and professionally deployed.
Logistics Route Planning API
Eva designed a scalable API that made routing faster and more dependable. Great architecture decisions and smooth collaboration from start to finish.