You will get high-performance full-stack Java or Python web application
Project details
Full Stack Web Application Development
I build complete, production-ready full stack web applications with clean architecture, secure integrations, and scalable performance. You get a working system from frontend to backend, including API integration, database design, and deployment-ready code.
What I deliver: Modern responsive frontend (JavaScript, HTML, CSS). Backend using Java with JDBC and MySQL. REST API development and third-party integration. Secure authentication. Clean, reusable code. Performance testing (Apache Bench, k6). Optional Flutter mobile app connected to the same backend.
How it works: You provide feature list, designs, API details, database schema, and assets before we start. Work delivered in milestones with approval at each stage. Small changes (under 1 hour) included. New features require new milestone and separate payment.
Quality guarantee: 14-day bug fix warranty after delivery. Full source code ownership transferred to you. Clean, scalable, production-ready architecture.
Best for startups, businesses, and founders who need a reliable full stack application built properly from end to end.
I build complete, production-ready full stack web applications with clean architecture, secure integrations, and scalable performance. You get a working system from frontend to backend, including API integration, database design, and deployment-ready code.
What I deliver: Modern responsive frontend (JavaScript, HTML, CSS). Backend using Java with JDBC and MySQL. REST API development and third-party integration. Secure authentication. Clean, reusable code. Performance testing (Apache Bench, k6). Optional Flutter mobile app connected to the same backend.
How it works: You provide feature list, designs, API details, database schema, and assets before we start. Work delivered in milestones with approval at each stage. Small changes (under 1 hour) included. New features require new milestone and separate payment.
Quality guarantee: 14-day bug fix warranty after delivery. Full source code ownership transferred to you. Clean, scalable, production-ready architecture.
Best for startups, businesses, and founders who need a reliable full stack application built properly from end to end.
Programming Languages
JavaScript, Python, JavaCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$1,500
|
Standard
$3,000
|
Advanced
$6,000
|
|---|---|---|---|
| Delivery Time | 14 days | 21 days | 30 days |
Number of Revisions | 2 | 4 | 6 |
Number of Pages | 5 | 10 | 20 |
Design Customization | - | ||
Content Upload | - | ||
Responsive Design | |||
Source Code |
About Samuel
Full-Stack Engineer
Chogoria, Kenya - 9:39 pm local time
Most developers write code. I engineer reliable systems.
A client’s application was crippled by slow performance. I stepped in and used tools like Apache Bench and Grafana k6 to identify critical API bottlenecks, optimizing the logic and infrastructure for better speed and stability under load.
I’m a full‑cycle problem solver who handles:
. Frontend: HTML, CSS, JavaScript, Flutter (Provider for state management)
. Backend: Java (OOP, layered architecture), JDBC, MySQL/PostgreSQL
.Specialties: RESTful API integration, payment gateway integration, performance testing, and legacy frontend modernization
Concrete results I’ve delivered:
.Migrated a company’s entire frontend from Vaadin to standard web technologies → faster load times + simpler maintenance.
.Built modular, reusable UI components that consume REST APIs → full CRUD + dynamic rendering.
.Integrated external services (e.g., OpenAI) – handling authentication, request/response cycles, and validation.
.Conducted load testing (Apache Bench, k6) to find bottlenecks and validate stability under concurrent requests.
.Diagnosed and fixed issues across the whole stack – client, API, database, data inconsistencies.
.Developed Flutter mobile app with backend API integration.
.Developed backend logic using Java + JDBC + MySQL, including data preprocessing and persistence.
How we can work together:
.Build an MVP – from idea to performant web/mobile app.
.Integrate APIs or payments – payment gateways, or any third‑party service. I handle authentication, error handling, and transactional workflows.
.Fix a slow or broken app – identify bottlenecks at any layer (frontend, backend, database) and implement lasting fixes.
Let’s make your application fast, stable, and ready to scale.
Send me a brief message about your project – I’ll reply quickly and we can schedule a call.
Steps for completing your project
After purchasing the project, send requirements so Samuel can start the project.
Delivery time starts when Samuel receives requirements from you.
Samuel works on your project following the steps below.
Revisions may occur after the delivery date.
Send Milestone Plan
I review your requirements and send a milestone plan with timeline for your approval.
Build Backend & Database
I build the backend, set up the database, create core API endpoints, and share for your approval.