Most startups, founders, and growing businesses already know what they want to build. The challenge is finding a Senior Full Stack Developer who can take ownership of the product, from architecture and MVP planning to frontend development, backend infrastructure, API integration, cloud deployment, automation, and long-term scalability.
I help startups, SaaS companies, agencies, and established businesses build modern web applications, SaaS platforms, AI-powered products, CRM systems, business software, marketplaces, customer portals, booking platforms, admin dashboards, automation platforms, Chrome extensions, and mobile applications using production-ready technologies.
My primary expertise includes React.js, Next.js, TypeScript, JavaScript, Node.js, Express.js, NestJS, PostgreSQL, MongoDB, Supabase, Firebase, AWS, Docker, Vercel, Tailwind CSS, Stripe, REST APIs, AI Integration, Workflow Automation, and Cloud Infrastructure.
As a Full Stack Developer, React Developer, Next.js Developer, Node.js Developer, SaaS Developer, Backend Engineer, API Integration Developer, and AI Developer, I build scalable applications that combine exceptional user experiences with secure backend systems and reliable infrastructure.
Whether you need to build an MVP, modernize an existing application, automate business workflows, integrate AI into your product, or scale an enterprise platform, I can help transform your vision into production-ready software.
What I Build
✔ SaaS Platforms & Multi-Tenant Applications
✔ Startup MVP Development
✔ AI Applications & AI Integration
✔ AI Chatbots & AI-Powered Business Tools
✔ CRM Systems & ERP Solutions
✔ Business Software & Internal Platforms
✔ Customer Portals & Admin Dashboards
✔ Marketplace Platforms & B2B Marketplaces
✔ Booking & Reservation Systems
✔ Financial Platforms & FinTech Applications
✔ Healthcare & Telehealth Platforms
✔ Real Estate Platforms
✔ Mobile Applications (React Native & Flutter)
✔ Chrome Extensions & Browser Extensions
✔ Web Automation & Workflow Automation
✔ API Integration & Third-Party Integrations
✔ Payment Systems (Stripe, PayPal, Webhooks)
✔ Cloud Deployment & DevOps
Core Technical Expertise
Frontend Development
React.js • Next.js • TypeScript • JavaScript • HTML5 • CSS3 • Tailwind CSS • Redux • React Query • Responsive UI Development • Front-End Development
Backend Development
Node.js • Express.js • NestJS • REST API Development • API Architecture • Authentication • Authorization • JWT • OAuth • Backend Infrastructure • Serverless Functions
Database Development
PostgreSQL • MongoDB • Supabase • Firebase • MySQL • Database Design • Database Optimization
AI Development & Automation
AI Development • AI Integration • OpenAI API • Claude API • AI Applications • AI Platform Development • AI Chatbots • Workflow Automation • Business Process Automation • AI-Powered SaaS
Cloud & DevOps
AWS • Docker • Vercel • Cloudflare • CI/CD • GitHub Actions • Deployment • Cloud Infrastructure • Performance Optimization
Payments & Integrations
Stripe Integration • PayPal • Third-Party APIs • REST APIs • Webhooks • API Integration
Industries I've Worked With
SaaS • FinTech • Healthcare • Telehealth • E-commerce • Education • Manufacturing • Real Estate • CRM • ERP • Recruitment • Marketplace Platforms • Booking Systems • Marketing Platforms • Business Automation
Why Clients Hire Me
I don't just build features, I help build products that are scalable, secure, maintainable, and ready for growth.
Clients value working with me because I provide:
• Clean, production-ready code
• Scalable software architecture
• Strong frontend and backend engineering
• Reliable API integration
• Secure authentication and authorization
• Optimized PostgreSQL and MongoDB database design
• AI integration and automation expertise
• Cloud deployment and infrastructure support
• Clear communication and transparent progress updates
• Long-term technical partnership
Whether you already have Figma designs, an existing codebase, or just an idea on paper, I can help you build a modern web application, SaaS platform, CRM, AI product, automation system, marketplace, Chrome extension, or mobile application from concept to production.
If you're looking for a Senior Full Stack Developer, React Developer, Next.js Developer, Node.js Developer, Backend Engineer, SaaS Developer, AI Developer, API Integration Developer, CRM Developer, Automation Engineer, or long-term technical partner, I'd be happy to discuss your project and recommend the best technical approach
Mobile App Development
App Development
React
JavaScript
Full-Stack Development
SaaS Development
Node.js
API Integration
Web Application Development
Next.js
TypeScript
Database Development
Supabase
PostgreSQL
User Authentication
Minimum Viable Product
Stripe
Tailwind CSS
AI Marketplace
REST API
Callistus N.
Ekwulobia, Nigeria
$30/hr
5.0
20 jobs
👨💼 Individual developer 🚀
I’m a driven full-stack developer with 7+ years of experience building secure, scalable, and resilient systems. My core expertise is in Symfony/PHP, with strong experience in Golang, Spring and Java for backend and distributed applications.
I focus on writing clean, efficient code with security, performance, and resilience in mind. Over the years I’ve built systems from scratch, integrated third-party APIs, and delivered production-ready solutions for clients across different industries.
Key Skills & Tools
Backend: Symfony, Sylius, Laravel, Golang, Spring Boot
Frontend: React (MUI, Ant Design), Vue (Vuetify)
Databases: MySQL, PostgreSQL, MongoDB, DynamoDB
Messaging & Caching: RabbitMQ, Kafka, Redis, Memcached
Cloud & APIs: AWS (S3, RDS, DynamoDB), Google Cloud, Stripe, PayPal, Twilio
Architecture & Patterns: DDD, CQRS, Event Sourcing, Clean Architecture
DevOps & Collaboration: Docker, Kubernetes, Jenkins, GitHub/GitLab, Jira
I thrive in Agile teams and enjoy solving complex problems with modern design patterns. If you’re looking for someone who can take ownership of backend architecture, API integrations, or full-stack development, I’d love to connect.
Symfony
PHP
React
Spring Boot
Vue.js
Vuetify
Laravel
Spring MVC
Back-End Development
Golang
Symfony 4
Front-End Development
Flutter
Java
Dart
Onanaike B.
Lagos, Nigeria
$15/hr
5.0
5 jobs
𝗟𝗼𝗼𝗸𝗶𝗻𝗴 𝗳𝗼𝗿 𝗮 𝗿𝗲𝗹𝗶𝗮𝗯𝗹𝗲 𝗮𝗻𝗱 𝗲𝘅𝗽𝗲𝗿𝘁 𝗕𝘂𝗯𝗯𝗹𝗲 𝗮𝗽𝗽 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿? 𝗬𝗼𝘂’𝗿𝗲 𝗶𝗻 𝘁𝗵𝗲 𝗿𝗶𝗴𝗵𝘁 𝗽𝗹𝗮𝗰𝗲.
I specialize in Bubble app development and App Store Optimization (ASO) delivering adaptable, high-performing, and accessible applications that support your business goals.
Tap the “Invite to Job” or “Message” button now to get started.
Over the past three years, we’ve hired over 10 bubble experts on Upwork, and Onanaike has undoubtedly been the most knowledgeable and helpful of everyone we’ve worked with. He has a unique ability to solve problems creatively and come up with solutions that you would never have considered. Unlike many developers who are solely technically skilled, Onanaike’s extensive business experience allows him to understand the real priorities and deliver a highly useful product. – Suzan Jay
Some features I can integrate in your app are:
✅ Payment Processing
✅ Automated emails
✅ Chat/messaging
✅ User profiles
✅ Account Settings
✅ Admin Portal
✅ 2FA
✅ File upload
✅ API integrations
✅ GPT Agent Development
✅ API Data Extraction
✅ Frontend Developer for Database Query Web App
✅ Game Development
👉 Expertise in Bubble allows me to quickly identify and resolve issues with your individual or company project, ensuring minimal downtime and optimal performance.
👉 My experience in no-code development will facilitate the enhancement and addition of features to your app, making it more intuitive and user-friendly..
☝️ I'm well-versed in Bubble.io, Airtable, and n8n, which I can integrate seamlessly to automate workflows and enhance the capabilities of your Bubble app.
I'm excited to team up with you to breathe life into your concepts! In today's swiftly evolving no-code bubble.io realm, developers typically fall into two categories:
1. The indifferent developers who construct projects devoid of vision or passion, prioritizing the price tag over long-term value creation.
2. The dedicated dynamo developers who enthusiastically embrace client ideas, infusing their expertise, insight, and commitment into realizing their SaaS/MVP aspirations.
💎💎💎 I assist businesses, startups, scaleups, B2B, B2C, and SMEs in designing internal tools such as CRMs, marketplaces, SaaS products, ⚛custom AI-powered MVPs, etc., tailored to enhance their business systems & operations.
My Experience
🚀 Over 5 years dedicating to Bubble coding, ranked Elite Bubble Programmer
🏆 First Rated Plus provider with 100% Job Testimonial
⭐️ 350+ projects delivered with 500+ happy clients on freelancing platforms
📈 Experienced developing fast-loading progressive web apps (PWAs), multi-tenant SaaS, and interactive dashboards
⛓ Integrate third-party APIs like Stripe, Mailchimp, Google Sheets
⚡ Build secure user authentication, role management, payments and subscriptions
🎯 Expert in UI/UX design, branding, typography, art direction, and usability principles
💻 Fluent in workflow automation, complex logic, efficient data modeling, mathematics, algebra
🌎 Cross-browser and mobile responsive sites following accessibility standards
✅ Successful track record designing, launching and scaling apps for startups and enterprises
👥 Leading a talented team of Bubble developers to deliver quality solutions, fast iterations and ongoing support
Here are a few of the services I provide:
✅ Bubble Development
✅ Bubble Products
✅ Bubble SaaS
✅ Bubble Apps
✅ Bubble Native
✅ Bubble Design.
✅ Bubble Development
✅ Bubble Web App
✅ Bubble Marketplace
✅ Bubble MVP.
✅ Bubble Plugins
✅ Bubble Coach
✅ Bubble AI SaaS
✅ Bubble API
✅ Bubble Stripe Integration
✅ Bubble Prototype
✅ Bubble Webhooks
✅ Bubble Workflows
✅ Bubble AI Automations
✅ Bubble Integrations
✅ Bubble web app development
✅ No-Code AI SaaS Development
Keywords:
mobile app developer | mobile app developr | mobile app devloper | mobile app devoloper | mobile app develper | mobile ap developer | moble app developer | mobil app developer | mobile app dev | mobile app devlpr | mobile app developor | mobile app developement | mobile app develpor | mobile app develoment | mobileapp developer | moblie app developer | moblile app developer | mobile ap devloper | mobile app develper ios | mobile app develper android | mobile application developer | mobile aplicatoin developer | mobile appp developer | mobile app devlopper | mobile app develompent | mobile app devlopement | mobile app developent | mobile app develpor flutter | mobile app developr for ios | mobile app developr for android | mobile app dev for ecommerce | mobile app designr | mobile app desiner | mobile app deveoper | mobile app develeper | mobile app develepor | mobile app developre | mobile app devolper | mobile app devlopr | mobile app deloper | mobile app devloment | mobile app develompent | mobile app devlopement | mobile app developent | mob app developer | mobeil app developer | mobile app speacialist | mobile app spcialist | mobile app specalist | hire mobile app de
iOS Development
Android
iOS
Payment Functionality
Android App Development
Social Media Account Integration
User Authentication
API Integration
Web Design
Web Development
Database Design
Full-Stack Development
Next.js
Advanced Software Products Group ReACT
AI Mobile App Development
REST API
SaaS
Cloud Development
Database Integration
CRM Development
Chidiuso Christopher I.
Lagos, Nigeria
$32/hr
5.0
12 jobs
✅ Value-Driven - I focus on delivering value regardless of any issues that may arise
✅ Big On Feedback - My clients are always kept in the loop
✅ Product-Centric - Before building, I ask 'why?' in order to improve product offerings. No one needs software, users would not use
I have over 6 years of experience with Python, PHP, javaScript, Django, flask, PHP, Kafka etc.
I have built products like complex data pipelines, complex websites, Rest Apis, Microservices, WebSocket based apps etc.
Symfony
Python
SQL
Flask
Ethereum
Solidity
JavaScript
Kubernetes
PHP
Microservice
Docker
Django
Golang
DevOps
Blockchain Architecture
OKTA
Oluwasina S.
Lagos, Nigeria
$15/hr
5.0
3 jobs
Hi! I am a Software Developer with 3years experience and a passion for start-ups and exciting projects
Professional experiences:
- Expertise in designing, developing, and deploying web applications using PHP, Laravel(MVC), CakePHP, WordPress, Flask(Python), and LAMP stack.
- Professional knowledge of JavaScript, Bootstrap, Tailwind CSS, HTML, and CSS.
- Understanding of RESTful API, service-oriented architecture, and API development.
- Experience in relational database development experience like MySQL.
- Experience with serverless technologies such as AWS S3 and API gateway.
- Experience with version control systems like GitLab, GitHub, and Bitbucket.
- Oral and written communication skills, problem-solving skills, customer service and interpersonal skills.
Skills:
- PHP, Laravel, CakePHP, WordPress, LAMP
- Vue.js, Js, Jquery
- Bootstrap 3-5, Tailwind CSS, HTML5, CSS 3
- JavaScript, jQuery, Ajax
- RESTful API, JSON, 3rd Party API
- MySQL
- AWS, Docker, Git
I also have a huge interest in legacy codebases.
A strong principle with clean code and DRY approach, software architecture, and continuous learning. Excited to work on cool projects with talented teams and make a valuable contribution.
Symfony
MySQL
PHP
JavaScript
Bootstrap
CakePHP
Laravel
jQuery
RESTful API
AWS Application
Web Design
Vue.js
Doctrine ORM
Database Design
PostgreSQL
David M.
Lagos, Nigeria
$45/hr
4.9
16 jobs
"It was a pleasure having Ekechi work on my peer-to-peer project. A good job always."
"Very professional and polite lancer, completed the work in time for me to launch my project. He still handled all reviews necessary without complaints."
"David started the project immediately after I gave it to him. He worked all through the night and did not sleep, and delivered my project in less than 5 hours perfectly done. He is a good person and a great programmer."
"Great and talented web developer. He created a custom Youtube API script for my project in a short period."
So you need a responsive, sturdy, and long-lasting system for your business, or you need someone to create a script/algorithm that will increase the performance and enhance the features of your web application/mobile app/software.
The testimonials are from past clients of mine and, in their way, show that I am a results-oriented developer who will do everything possible to make sure you are satisfied and that your application is well optimized.
Using a host of frontend, backend, and database languages which I work comfortably with, I create simple, light, but highly efficient and effective scripts and programs that completely transform your platform's needs.
A few of my on-demand languages include:
PHP
Laravel
JavaScript
VueJs
ReactJs
I can easily break down your program needs and present a detailed solution, estimate, and duration within a short time after hearing from you.
So feel free to contact me directly by hitting the green button at the top, and let's get your project started.
Symfony
Web Development
JavaScript
PHP
Database Architecture
Object-Oriented Programming
Database Design
MySQL
Laravel
API Integration
API
Bootstrap
Web Application
Vue.js
MySQL Programming
How it works
Post a job for freePost a job
Tell us what you need. Create your own job post or generate one with AI then filter talent matches.
Hire top talent fast
Consult, interview, and hire quickly, so you can meet the freelancers you're excited about.
Collaborate easily
Use Upwork to chat or video call, share files, and track project progress right from the app.
Payment simplified
Manage payments in one place with flexible billing options. Only pay for approved work, hourly or by milestone.
Don't just take our word for it
“Upwork provides an umbrella-level of security. I can see a talent’s work history and ratings. I can hold payments in escrow. I can communicate through Upwork Messages instead of working through my email address.”
KD
Kim Darling
Emerald Tiger
“Upwork is the best platform to hire skilled professionals when we're not looking for a full-time employee. All the companies in our portfolio use Upwork to find talent across a wide range of fields.”
DM
David Merry
Kinetic Investments
“Our very specific requirements can be a challenge—With Upwork, we’re able to access a bigger community to ensure the success of our projects.”
KK
Katja Krohn
Summa Linguae
How do I hire a Symfony Developer in Nigeria on Upwork?
You can hire a Symfony Developer in Nigeria on Upwork in four simple steps:
Create a job post tailored to your Symfony Developer project scope. We'll walk you through the process step by step.
Browse top Symfony Developer talent on Upwork and invite them to your project.
Once the proposals start flowing in, create a shortlist of top Symfony Developer profiles and interview.
Hire the right Symfony Developer for your project from Upwork, the world's largest work marketplace.
At Upwork, we believe talent staffing should be easy.
How much does it cost to hire a Symfony Developer?
Rates charged by Symfony Developers on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.
Why hire a Symfony Developer in Nigeria on Upwork?
As the world's work marketplace, we connect highly-skilled freelance Symfony Developers and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream Symfony Developer team you need to succeed.
Can I hire a Symfony Developer in Nigeria within 24 hours on Upwork?
Depending on availability and the quality of your job post, it's entirely possible to sign up for Upwork and receive Symfony Developer proposals within 24 hours of posting a job description.