Full-Stack Software Engineer | 5+ years shipping production systems
I'm a full-stack software engineer with 5+ years building impactful, user-focused
products across Fintech, Education, IoT, Web3, Sports, Dev Tools, and Health.
I pair strong backend engineering with solid frontend craft to ship systems that are
scalable, observable, and reliable in the hands of real users, not just demos.
I'm now extending that foundation into Agentic AI engineering: building LLM-powered
agents and RAG systems on top of the same production discipline (clean data flow,
testing, and debugging) that my backend work is built on.
Backend & Infrastructure
- Languages: Node.js, Go (Golang), Python, TypeScript
- Databases: PostgreSQL, MongoDB, Redis (SQL/NoSQL hybrid); pgvector for embeddings
- Cloud & DevOps: AWS, Azure, GCP; Docker, CI/CD pipelines, Linux/VPS deployment
- BaaS: Supabase, Firebase, Appwrite, AWS Amplify, PocketBase
Frontend
- Frameworks: React.js, Next.js, Vue.js, React Native, Capacitor, Flutter
- Language & Styling: TypeScript, Tailwind CSS, Ant Design, Material-UI, Tailwind CSS, ShadCN
Agentic AI Engineering
- Frameworks: LangChain, LangGraph (stateful/multi-agent orchestration)
- Patterns: RAG & agentic RAG, ReAct, tool/function calling, structured outputs,
multi-agent workflows, MCP (Model Context Protocol)
- LLMs: OpenAI, Anthropic Claude, open models via Ollama
- Retrieval & data: vector databases (pgvector, Pinecone, Qdrant, Chroma),
embeddings, semantic search
- Observability & eval: LangSmith, Langfuse
Testing & Quality
- Test-Driven Development with Jest, Playwright, Cypress, Storybook, React Testing Library
- End-to-end test pipelines and QA integrated across the development lifecycle
Notable Projects
- Serene Mind — a telehealth SaaS connecting therapists and patients with paid
online sessions, built-in video/audio, and Stripe-style session payments.
Next.js, React, TypeScript, Supabase, with custom CI/CD. (Core dev & tech lead)
- SchoolBook — a finance, academics, and administration platform managing records
for 1,000+ students across 20+ schools. React, Vite, TypeScript, Node.js, PostgreSQL.
- GigGap — a skilled-labour marketplace for West Africa (electricians, plumbers,
and other pros ↔ clients), live on both the App Store and Google Play.
- Waziup IoT Lab — a learning platform for IoT serving 2,000+ daily active users.
Go, React, Vite, TypeScript, PostgreSQL. (Lead developer)
- Porai AI — an AI-powered math-solver app (in development).
What Drives Me
I build software that works and lasts. My approach centers on scalability, clean
data flow, and user-centric design, and I like environments where I can investigate
deeply, communicate findings clearly, and keep learning, most recently by moving
into agentic AI. If you need someone who can own a problem end to end, let's talk.
JavaScript
Flutter
Mobile App Development
Python
React
React Native
Node.js
TypeScript
C
RESTful API
Front-End Development
Back-End Development
Django
Golang
Docker
Efatha R.
Kampala Central Division, Uganda
$15/hr
4.5
11 jobs
I have extensive experience as a Front-End Web Developer, with a solid proficiency in HTML, CSS, JavaScript, React.js, and Bootstrap. My expertise lies in developing responsive, contemporary web templates, visually engaging websites, and applications. I am skilled in using Figma to design user-friendly interfaces, and I prioritize an all-encompassing approach to achieving visually appealing designs. I'm eager to work together to bring your vision to fruition!
🔧 What I bring to the table:
- Pixel-perfect development from Figma or Adobe XD designs
- Clean, maintainable, and scalable code
- Intuitive UI/UX design skills using Figma
- Mobile-first and cross-browser responsive layouts
- Custom web templates tailored to your business needs
Every project I take on is an opportunity to bring a client’s vision to life. I blend creativity with technical precision to build engaging user experiences that drive results. Whether you're launching a landing page, revamping your site, or building a web app from scratch—I’m here to make it happen.
I have successfully collaborated with businesses and individuals on Upwork, providing innovative solutions that enhance productivity, streamline processes, and drive success. My approach is client-focused, ensuring clear communication, timely delivery, and top-tier service.
CSS 3
Python
React
JavaScript
WordPress
Responsive Design
Next.js
Web Design
Web Development
NodeJS Framework
HTML5
Vue.js
Bootstrap
French
Translation
English
Live Interpretation
Salim S.
Kampala, Uganda
$30/hr
5.0
11 jobs
I’m a developer with experience in building websites for small and medium sized businesses.
- I’m experienced in HTML5 and CSS3, React/NextJs, Tailwindcss, NodeJs, WordPress, PHP, Django, Vanilla Javascript, Graphic design SEO, Data Analytics, Hosting & Setup
- I’ll fully your project from start to finish
- Regular communication is really important to me, so let’s keep in touch!”
CSS
WordPress
React
HTML5
Adobe Illustrator
Next.js
JavaScript
SQL
UI/UX Prototyping
PHP
Microsoft SQL Server
Python
ASP.NET
Contentful
Tailwind CSS
Ezekiel Twinoburyo M.
Kampala, Uganda
$25/hr
5.0
6 jobs
Your Features, Built Right. No Maintenance Headaches.
I am a Top-Rated Plus Full-Stack Developer with over 5 years of experience, and I specialize in turning your critical product ideas into web applications that are fast, incredibly reliable, and truly simple to maintain.
I focus primarily on the modern JavaScript ecosystem (React, Next.js, and Node.js) to build seamless solutions that deliver real, measurable value, not just code.
- I don't just write features; I solve business problems. Here are a few examples of the impact I’ve delivered for clients:
- Content Accessibility & Workflow: I built a complex, 33-page static website for the Dana-Farber Data Science Institute. The entire site is now fully manageable by their internal team, dramatically improving their content workflow and accessibility.
- Seamless User Experience: I have conducted comprehensive manual testing and implementation for integrated payment systems, ensuring every user interaction is seamless, secure, and completely error-free.
- Scalability & Performance: I obsess over optimization. I routinely fine-tune web apps for maximum performance and scalability, ensuring your business can grow rapidly without hitting technical bottlenecks.
Let us Talk About Your Project:
My mission is to make your project successful and stress-free. I pride myself on clear, proactive communication and always delivering a high-quality, maintainable solution on time.
If you need a developer who cares about clean code as much as your deadline, let's connect! I look forward to hearing about your project goals.
CSS 3
JavaScript
HTML5
React
Git
Next.js
Bootstrap
Node.js
GitHub
API
Vercel
Troubleshooting
Bug Fix
Steven O.
Kampala, Uganda
$10/hr
5.0
3 jobs
I help businesses, bloggers, and agencies build WordPress websites that are not just visually clean, but structured to rank, load fast, and scale with content.
If you need someone who can take a website from idea → setup → SEO-ready → content publishing, while following instructions precisely and delivering clean execution, I can support you end-to-end.
What You Get Working With Me
A website that is properly structured for SEO, not just designed
Clean, responsive pages that work across all devices
Content that is formatted, optimized, and ready to publish
Reliable execution without constant follow-ups
Core Services
1. WordPress Website Development
Business websites, blogs, NGO platforms
Full setup: domain, hosting, themes, plugins
Clean layouts focused on usability and clarity
2. Website Optimization & Technical Fixes
Theme customization (HTML, CSS, JavaScript)
Speed and performance improvements
Mobile responsiveness fixes
Plugin configuration and troubleshooting
3. SEO Setup & Content Structuring
Keyword research targeting real ranking opportunities
On-page SEO (titles, meta descriptions, headings, internal linking)
SEO plugin setup (Yoast, Rank Math)
Structuring pages and posts for search visibility
4. Content Upload & Publishing Systems
Uploading and formatting blog posts in WordPress
Structuring articles for readability and engagement
Adding images, media, and proper spacing
Preparing content for immediate publishing
How I Work
I focus on:
Accuracy — I follow instructions carefully and execute without guesswork
Speed — I use efficient workflows to deliver quickly
Clarity — clean structure, no unnecessary complexity
I also use modern tools (including AI where appropriate) to increase efficiency without compromising quality.
Who I Work Best With
Bloggers and content creators
Small business owners
Agencies needing reliable execution support
Recent Experience
Built and customized WordPress websites for blogs and organizations
Uploaded and formatted large volumes of SEO content
Improved page structure for better indexing and usability
Let’s Work
If you need a dependable WordPress and SEO-focused assistant who can build, organize, and execute without constant supervision, send me a message and let’s discuss your project.
CSS
Virtual Assistance
Administrative Support
Online Research
Lead Generation
SEO Keyword Research
Content Upload
AI Content Creation
AI Image Generation
WordPress
Data Entry
Website Maintenance
Technical SEO
On-Page SEO
HTML
Ssemugabi J.
Kampala Central Division, Uganda
$18/hr
5.0
2 jobs
🥇 𝑬𝒙𝒑𝒆𝒓𝒕 Full-stack 𝑫𝒆𝒗𝒆𝒍𝒐𝒑𝒆𝒓 🥇
Greetings! With 3+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 in full stack development building scalable, secure, and high-performance AI-integrated MVPs and SaaS solutions, I am your go-to guru for 𝐑𝐞𝐚𝐜𝐭𝐉𝐒, Next.JS, 𝐉𝐚𝐯𝐚𝐒𝐜𝐫𝐢𝐩𝐭, 𝐍𝐨𝐝𝐞𝐉𝐒, 𝐚𝐧𝐝 𝐓𝐲𝐩𝐞𝐒𝐜𝐫𝐢𝐩𝐭 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬! My track record boasts the successful 𝐝𝐞𝐥𝐢𝐯𝐞𝐫𝐲 𝐨𝐟 40+ 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬 𝐰𝐢𝐭𝐡 𝐜𝐨𝐧𝐬𝐢𝐬𝐭𝐞𝐧𝐭 5-𝐬𝐭𝐚𝐫 𝐫𝐞𝐯𝐢𝐞𝐰𝐬 and delighted clients. 💻✨ Drop me a message on Upwork to get started 🌟🙌
✅ Trusted by 100+ Businesses | 3+ Years Experience
💎 100% Client Satisfaction
🔥 𝗪𝗵𝗮𝘁 𝗜 𝗢𝗳𝗳𝗲𝗿
💻 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗪𝗲𝗯 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁
• JavaScript, PHP, Next.js, React.js, Node.js, Express.js
• ReactNative, Custom PHP CMS, WordPress Development
🔗 𝗔𝗣𝗜 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻
• AI Automations: OpenAI, ChatGPT, AI Model Integration
• Marketing Automation: n8n, Make, Zapier
• Payments: Stripe, PayPal, Lemon Squeezy, Polar
• Email & SMS APIs: Twilio, SendGrid, Postmark, Mailgun, Mandrill, Mailchimp, ActiveCampaign
☁️ 𝗗𝗲𝘃𝗢𝗽𝘀 & 𝗖𝗹𝗼𝘂𝗱
• Docker, CI/CD (CircleCI, GitHub Actions, GitLab, Bitbucket)
• AWS, DigitalOcean, Google Cloud, Nginx, Apache
• Linux Server Administration
🗄️ 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀 & 𝗕𝗮𝗰𝗸𝗲𝗻𝗱
• MySQL, PostgreSQL, MongoDB, Redis
• Webhook, Server Events, Cron Jobs
🎨 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱 & 𝗨𝗜/𝗨𝗫
• Livewire, React.js, Tailwind CSS, Bootstrap, jQuery
• Modern, responsive, and pixel-perfect interfaces
🛒 𝗘-𝗰𝗼𝗺𝗺𝗲𝗿𝗰𝗲 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀
• Shopify, WooCommerce, Payment Gateway Integrations
🌟 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘇𝗲𝗱 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲
• Meta App Reviews / API Permission Approvals
• Business Verification & Tech Provider Setup
• Messenger & Instagram Chatbot Development
• Facebook/Instagram Comment & Posting Automation
• Data Scraping, Email/SMS Automation
• SaaS Development & Scaling
💡 𝗪𝗵𝘆 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲
• Strong problem-solving & clean, scalable code
• Proven track record: 50+ projects completed successfully
• Transparent communication & fast delivery
• Strategic partner, not just another developer
📩 Let’s talk about how I can help transform your web app into a reliable, automated, and scalable solution.
𝗦𝗸𝗶𝗹𝗹𝘀: Full Stack Development, Laravel Developer, React.js, Livewire, Node.js, Express.js, SaaS Developer, API Integrations, Social Media APIs, Facebook API, Meta API, Google API, Pinterest API, Instagram API, AI Automations, Marketing Automation, DevOps, Docker, AWS, RESTful API, Facebook Graph API, Payment Gateway Integration, E-commerce, Web Scraping, Data Scraping, WordPress Plugin Development, Custom PHP, GitHub, GitLab, Bitbucket, CircleCI
Next.js
React
Node.js
JavaScript
TypeScript
Software Debugging
Bug Fix
Full-Stack Development
ExpressJS
REST API
RESTful API
MongoDB
PostgreSQL
Tailwind CSS
API Integration
Git
React Native
AI Development
GSAP
Artificial Intelligence
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Emerald Tiger
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Kinetic Investments
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Summa Linguae
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