SaaS & Custom Applications
Full-stack web applications, SaaS platforms, MVPs, marketplaces, portals, dashboards and business systems built around your actual requirements.
Senior Full-Stack Product Developer
I build SaaS platforms, AI-powered applications and custom business software.
I help founders and businesses turn ideas, workflows and existing systems into reliable software — from backend architecture and databases to frontend applications, APIs, payments and AI integrations.
12+Years of software development experience
400+Client reviews, 5.0 rating on Fiverr
1Developer, end-to-end ownership
Services
Complete product development, from idea to working software
I take ownership across the product stack so architecture, data, interfaces and integrations work as one system.
AI Integration & Automation
Practical AI features integrated into real products and workflows — not AI for the sake of AI.
Backend, APIs & Integrations
Reliable backend systems for applications that need solid business logic, security, payments, data and third-party services.
Selected Work
Products and platforms built around real-world problems
A selection of products and platforms I've designed and built across AI, fintech, travel, consumer services and business operations.
Featured Project
ALTHEA
AI-Powered Emotional Self-Coaching Platform
A bilingual AI product built with context-aware conversation routing, multilingual behaviour, structured prompt architecture, and application-level controls.
WashApp
On-Demand Laundry Pickup & Delivery Platform
A consumer-focused laundry service platform that lets customers schedule pickups, choose cleaning services, view pricing, place orders, and receive cleaned items back through a coordinated pickup-and-delivery workflow.
Flight Local
B2B Travel Booking & Agency Management Platform
A full B2B travel platform built for travel agencies to search and book flights, manage travellers, control markups, track deposits and ledgers, manage sub-agents, and monitor booking activity from one operational dashboard.
Pronation
Corporate Events & Experiential Marketing Website
A content-rich business website for a Dubai events company, designed to present multiple service lines, showcase a large portfolio of live events, and turn visitors into qualified enquiries.
Aligatoras
Crypto-Powered Task & Earnings Platform
A task-based earning platform built around crypto payments, wallet-based withdrawals, transaction controls, and a secure backend designed to keep rewards, balances, and settlements consistent.
Althea
AI-Powered Emotional Self-Coaching Platform
A bilingual AI-powered emotional self-coaching platform built with specialized conversation routing, multilingual behaviour, and application-level controls that keep the AI aligned with a clearly defined product experience.
Why work with me
You don't need five different developers to get one product built.
I work across the complete product stack, connecting technical decisions to the real business problem.
End-to-End Ownership
I work across backend architecture, databases, APIs, frontend applications and third-party integrations, allowing the different parts of your product to be built as one coherent system.
Product Thinking, Not Just Coding
I look at what the application needs to accomplish rather than blindly implementing a list of features.
Built for Real-World Use
Authentication, permissions, transactions, validation, administration, integrations and failure handling matter just as much as how the application looks.
Clear Communication
You'll understand what is being built, the decisions that matter and where the project stands.
Technologies & capabilities
A practical stack for complete software products
My core stack covers the backend, frontend, data and integrations required to build and operate real applications.
Backend
- Node.js
- PHP
- Python
- Solidity
- Dart
- REST APIs
Frontend
- React
- TypeScript
- Flutter
- Ionic
- HTML
- CSS
Database
- MySQL
- SQL
Integrations
- OpenAI
- Payment APIs
- Telegram
- Webhooks
System
- Authentication
- Role-based access
- Admin dashboards
- Automation
Process
A simple path from idea to launch
The details change by project, but the work stays clear and practical at every stage.
01
Understand
We define what you're building, who it's for and the problem it needs to solve.
02
Scope
I translate the idea into workflows, features, technical requirements and sensible phases.
03
Build
Development proceeds through clear milestones and regular working versions.
04
Test & Refine
Core flows, edge cases, integrations and user experience are tested and improved.
05
Launch
I help prepare the application for release and can support future improvements.
About Felix
Full-stack experience with a product owner's perspective.
I'm Felix Silas, a full-stack product developer with more than 12 years of experience building software for clients and businesses.
My work has evolved from websites and traditional web applications into complete SaaS platforms, transactional systems, mobile applications, business automation and AI-powered products.
I work best on projects where the developer needs to understand more than an isolated coding task — where users, workflows, databases, APIs, permissions, payments, integrations and real business rules all need to work together.
My primary stack centres around Node.js, React and MySQL, with extensive experience integrating third-party APIs and modern AI services.
If you know exactly what you need, I can help build it. If you have the business idea but aren't yet sure how it should work technically, I can help turn it into a practical development plan.
Have something you want to build?
Tell me what you're trying to create, improve or automate. You don't need every technical detail figured out — describe the idea and I'll help determine the best approach.
Discuss a Project