SaaS Billing Portal Revamp
Jessica delivered clean, maintainable code and improved our checkout flow quickly. Communication was excellent throughout. 5 stars.
Hourly Rate
$31 / Hr
Total Earned
$22,265
Experience
17 Years
Skills
- JavaScript
- TypeScript
- React
- Node.js
- Python
- REST API Development
- PostgreSQL
- AWS
Senior Full Stack Developer
I am Jessica Biller, a senior full stack developer with over 8 years of experience building reliable and scalable web applications. I specialize in creating clean front-end interfaces, robust back-end systems, and efficient API integrations. I have worked with startups and established businesses to deliver secure, maintainable software that supports real business goals. My approach combines strong technical execution with clear communication and a focus on long-term product success.
Reviews
36 reviews on file.
E-commerce Inventory Sync Engine
Fantastic work connecting our store, warehouse, and accounting systems. Jessica solved edge cases we had missed and shipped on time.
Healthcare Appointment Booking System
Jessica built a reliable booking workflow with great attention to security and usability. The handoff was smooth and professional.
Fintech KYC Verification Dashboard
The dashboard was fast, well structured, and easy for our team to use. Jessica communicated clearly and delivered exactly what we needed.
Mobile Fitness App Backend
Jessica created a scalable backend with clean APIs and excellent documentation. We would gladly hire her again.
CRM Lead Automation Workflow
She automated our lead routing and reduced manual work dramatically. Great problem solving and fast delivery.
AI Content Review Tool
Jessica integrated AI features thoughtfully and kept performance strong. The project was completed ahead of schedule.
Marketplace Vendor Onboarding Platform
Excellent architecture and polished execution. Jessica made a complex vendor flow feel simple and reliable.
Real Estate Analytics Dashboard
The dashboard is intuitive, fast, and visually clear. Jessica handled data issues calmly and professionally.
IoT Device Monitoring Console
Jessica built a stable monitoring console with real-time updates. Her code quality and deployment support were outstanding.
Restaurant Ordering Web App
Our ordering app works beautifully across devices. Jessica was responsive, organized, and easy to collaborate with.
Education LMS Reporting Module
Jessica added reporting features that teachers love. The implementation was clean, tested, and delivered on time.
Travel Booking API Integration
She handled several difficult API integrations and made them reliable. Great updates, great attitude, great results.
Social Community Moderation Panel
Jessica designed a practical moderation panel that saved our team hours each week. Very professional from start to finish.
Subscription Video Platform Migration
The migration went smoothly with almost no downtime. Jessica planned carefully and communicated every step.
Legal Document Automation Portal
Jessica turned a messy manual process into a polished portal. Strong technical judgment and excellent client focus.
Logistics Route Optimization Tool
She improved route planning performance and made the interface easier to use. Delivery was prompt and high quality.
Nonprofit Donation Management System
Jessica created a secure, simple donation system that our staff can manage easily. Wonderful communication and support.
HR Employee Self Service App
The employee portal is clean, fast, and well organized. Jessica handled feedback quickly and professionally.
Retail POS Data Connector
Jessica built a dependable connector for our POS data. The implementation was robust and thoroughly documented.
Cybersecurity Audit Tracking Dashboard
She delivered a clear, secure dashboard for audit tracking. Jessica’s attention to detail was impressive.
Construction Project Management Portal
Jessica created a portal that keeps our field teams aligned. Great architecture, clear communication, and timely delivery.
Insurance Claims Processing Workflow
The new workflow reduced claim review time significantly. Jessica understood our needs and built a reliable solution.
AI Chatbot Support Integration
Jessica integrated the chatbot smoothly with our help desk. She tested thoroughly and made the experience feel seamless.
Music Streaming Admin Dashboard
The admin dashboard is fast, clean, and easy to navigate. Jessica delivered polished work with minimal supervision.
Automotive Service Booking App
Jessica built a smooth booking flow and improved our notification system. Excellent quality and very dependable.
Manufacturing Quality Control System
She modernized our QC tracking with a stable and practical system. Jessica was detail-oriented and efficient.
Property Management Tenant Portal
Tenants can now submit requests and payments with ease. Jessica delivered a secure and user-friendly portal.
Crypto Portfolio Tracking Tool
Jessica built a responsive tracker with accurate data handling. She was proactive about performance and reliability.
Telemedicine Patient Intake Forms
The intake workflow is secure, simple, and much faster for patients. Jessica was excellent to work with.
Food Delivery Dispatch Dashboard
Jessica delivered a real-time dispatch dashboard that our operators love. Great problem solving under tight deadlines.
B2B Procurement Marketplace Upgrade
She improved search, vendor pages, and checkout reliability. Jessica’s code was clean and the rollout was smooth.
Energy Usage Analytics Platform
Jessica transformed complex energy data into clear reports. The platform is stable, fast, and easy to maintain.
Event Ticketing Checkout System
The checkout system handled our launch traffic perfectly. Jessica planned the deployment carefully and delivered great work.
Warehouse Barcode Scanning App
Jessica built a practical scanning app that reduced errors immediately. Communication was clear and implementation was solid.
Customer Success Metrics Dashboard
The metrics dashboard gave our team instant visibility into key accounts. Jessica delivered exactly on scope and on time.