Stundensatz $32 / Std.
Gesamtverdienst $19,000
Erfahrung 16 Jahre

Fähigkeiten

  • JavaScript
  • TypeScript
  • React
  • Node.js
  • Python
  • REST API Development
  • PostgreSQL
  • AWS

Senior Full Stack Developer

I am Martina Bayles, a full stack developer with over 8 years of experience designing, building, and maintaining modern software solutions. I specialize in developing scalable web applications, robust APIs, and efficient backend systems that support real-world business needs. My work focuses on clean code, performance, security, and maintainable architecture across the full development lifecycle. I collaborate effectively with product teams, designers, and stakeholders to deliver practical, high-quality technical solutions. I am passionate about solving complex problems and continuously improving systems through thoughtful engineering practices.

Bewertungen

39 Bewertungen vorhanden.

Projekt starten

SaaS Billing Portal Refactor

3. August 2026 - 6. Oktober 2026 75 Stunden $32 / Std.

Martina cleaned up our billing flow and reduced checkout errors fast. Clear communication, solid code quality, and delivered ahead of schedule.

E-commerce Search Optimization

2. April 2026 - 7. Mai 2026 150 Stunden $32 / Std.

Excellent work improving product search speed and relevance. Martina explained tradeoffs clearly and shipped a polished solution.

Mobile Fitness App Backend

20. Dezember 2025 - 15. Februar 2026 191 Stunden $32 / Std.

Martina built a reliable API for our app with great documentation. Timely delivery and thoughtful problem solving throughout.

Custom CRM Workflow Automation

9. September 2025 - 11. Oktober 2025 71 Stunden $32 / Std.

She automated our lead pipeline exactly as requested. Communication was excellent and the final system saved our team hours weekly.

Executive Analytics Dashboard

16. April 2025 - 18. Juni 2025 174 Stunden $32 / Std.

Martina delivered a clean dashboard with accurate metrics and fast load times. Very professional, responsive, and detail oriented.

AI Support Chat Tool

5. Januar 2025 - 10. März 2025 127 Stunden $32 / Std.

Great implementation of our AI support assistant. Martina handled edge cases well and deployed everything smoothly.

Fintech Reporting API Integration

15. August 2024 - 17. Oktober 2024 169 Stunden $32 / Std.

Martina integrated complex financial APIs without drama. Her code was clean, secure, and delivered right on time.

Healthcare Appointment Scheduling System

7. Mai 2024 - 10. Juni 2024 147 Stunden $32 / Std.

The booking system works beautifully and meets our privacy requirements. Martina was organized, reliable, and easy to work with.

Marketplace Vendor Onboarding Platform

10. Januar 2024 - 10. Februar 2024 160 Stunden $32 / Std.

Martina improved onboarding and fixed several workflow gaps. Strong architecture choices and very clear status updates.

Hotel Booking Engine Upgrade

9. September 2023 - 19. Oktober 2023 112 Stunden $32 / Std.

She modernized our booking engine and improved conversion tracking. Fast turnaround, excellent testing, and smooth deployment.

Social Community Moderation Tools

3. Mai 2023 - 16. Juni 2023 145 Stunden $32 / Std.

Martina built moderation features that our admins love. She understood the product quickly and delivered high quality work.

IoT Device Monitoring Console

14. Januar 2023 - 15. März 2023 133 Stunden $32 / Std.

Fantastic work creating a stable monitoring console for our devices. Martina handled real-time data and alerts expertly.

Marketing Attribution Data Pipeline

11. November 2022 - 12. Dezember 2022 183 Stunden $32 / Std.

Martina rebuilt our attribution pipeline and made reports trustworthy again. Great communication and very dependable delivery.

Real Estate Listing Platform

23. August 2022 - 24. September 2022 56 Stunden $32 / Std.

She delivered a fast, intuitive listing platform with strong search filters. Code quality and responsiveness were both excellent.

EdTech Course Management Portal

16. Mai 2022 - 3. Juli 2022 94 Stunden $32 / Std.

Martina created a clean portal for courses, students, and progress tracking. She was patient, precise, and consistently on schedule.

Logistics Route Planning Dashboard

10. Februar 2022 - 25. März 2022 148 Stunden $32 / Std.

The dashboard gave our dispatchers exactly what they needed. Martina solved performance issues quickly and communicated every step.

Restaurant Online Ordering System

25. Oktober 2021 - 29. Dezember 2021 65 Stunden $32 / Std.

Martina built a reliable ordering flow with payment integration. The launch was smooth and support after delivery was excellent.

Nonprofit Donor Management App

13. Juli 2021 - 8. August 2021 107 Stunden $32 / Std.

She delivered a practical donor system that is easy for staff to use. Martina was responsive, thoughtful, and technically strong.

Cybersecurity Audit Reporting Tool

31. März 2021 - 20. Mai 2021 135 Stunden $32 / Std.

Martina turned our audit process into a clean reporting tool. Great attention to security, permissions, and export accuracy.

Subscription Video Platform Migration

26. November 2020 - 13. Januar 2021 57 Stunden $32 / Std.

Our migration was completed with minimal downtime. Martina planned carefully, tested thoroughly, and kept us informed.

Retail Inventory Sync Service

25. Juli 2020 - 15. September 2020 175 Stunden $32 / Std.

Martina fixed our inventory sync issues across stores and online channels. Reliable work, clear updates, and excellent debugging.

Travel Itinerary Mobile Companion

14. März 2020 - 11. Mai 2020 153 Stunden $32 / Std.

She built a polished backend for itinerary updates and notifications. Martina was quick, flexible, and very professional.

Legal Document Review Portal

26. November 2019 - 17. Januar 2020 183 Stunden $32 / Std.

Martina developed a secure portal with role-based access and clean document workflows. The final product exceeded expectations.

HR Recruitment Tracking System

24. Juli 2019 - 29. August 2019 83 Stunden $32 / Std.

The recruitment tracker is intuitive and stable. Martina translated our messy process into a clean, useful application.

Construction Project Cost Tracker

4. April 2019 - 24. Mai 2019 101 Stunden $32 / Std.

Martina built a cost tracking tool that our field managers adopted immediately. Great UX sense and strong technical execution.

AI Image Tagging Workflow

28. November 2018 - 19. Januar 2019 166 Stunden $32 / Std.

She integrated image tagging into our content workflow seamlessly. Martina handled API limits, retries, and deployment perfectly.

Fleet Maintenance Alert Platform

18. August 2018 - 26. September 2018 131 Stunden $32 / Std.

Martina delivered automated alerts and service logs that work flawlessly. She was proactive and solved issues before launch.

Insurance Claims Intake Portal

6. April 2018 - 21. Mai 2018 162 Stunden $32 / Std.

The claims intake portal is secure, simple, and efficient. Martina managed requirements well and delivered clean, tested code.

Podcast Publishing Automation System

10. Januar 2018 - 3. März 2018 172 Stunden $32 / Std.

Martina automated our publishing workflow and reduced manual steps dramatically. Fast, communicative, and highly skilled.

Manufacturing Quality Control Dashboard

12. Oktober 2017 - 8. November 2017 106 Stunden $32 / Std.

She created a dashboard that made defect trends obvious. Martina’s data handling and interface work were both excellent.

Banking KYC Verification Module

2. Juli 2017 - 24. August 2017 62 Stunden $32 / Std.

Martina implemented the KYC module with strong validation and audit logging. Very careful, secure, and deadline focused.

Event Ticketing Checkout Flow

14. Februar 2017 - 5. April 2017 138 Stunden $32 / Std.

Our checkout flow is faster and much easier to use. Martina handled payment edge cases and delivered a smooth release.

Agriculture Sensor Data Platform

18. November 2016 - 16. Dezember 2016 133 Stunden $32 / Std.

Martina built a platform for sensor readings, alerts, and historical charts. Excellent technical judgment and communication.

Gaming Leaderboard Service API

11. Juli 2016 - 7. September 2016 104 Stunden $32 / Std.

She built a fast leaderboard service that handles spikes well. Martina’s architecture was simple, scalable, and well documented.

Telemedicine Patient Messaging App

13. April 2016 - 27. Mai 2016 121 Stunden $32 / Std.

Martina delivered secure patient messaging with a clean interface. She was responsive and handled compliance concerns carefully.

Property Management Tenant Portal

1. Dezember 2015 - 25. Januar 2016 158 Stunden $32 / Std.

The tenant portal is easy to use and reduced support requests immediately. Martina was efficient, organized, and dependable.

Cloud Infrastructure Cost Optimization

3. September 2015 - 5. Oktober 2015 138 Stunden $32 / Std.

Martina reviewed our cloud setup and cut monthly costs without hurting performance. Clear recommendations and excellent execution.

Warehouse Barcode Scanning App

6. Mai 2015 - 6. Juli 2015 76 Stunden $32 / Std.

She built a practical scanning app that improved warehouse accuracy. Martina tested thoroughly and delivered exactly what we needed.

Customer Success Health Score Dashboard

22. Dezember 2014 - 23. Februar 2015 67 Stunden $32 / Std.

Martina created a reliable health score dashboard with useful alerts. Great collaboration, clean data modeling, and timely delivery.

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