Hire the Best Firebase Developers
in Uganda

I’m a Senior Full-Stack Engineer with 8+ years of experience building scalable web and mobile applications using React/Next.js, React Native, Node/NestJS, and TypeScript. My expertise spans the full product lifecycle — from designing front-end interfaces (React/Next.js, Redux, Tailwind CSS) to architecting secure backends (NestJS, PostgreSQL, GraphQL/REST, AWS) and deploying CI/CD pipelines with Docker and Kubernetes. Key strengths include: • Delivering high-performing, responsive UIs with React/Next.js. • Building cross-platform mobile apps with React Native/Expo, published on App Store & Play Store. • Migrating monoliths to microservices and improving deployment safety. • Raising test coverage to 90%+ with Jest, Cypress, and automated pipelines. • Thriving in global, distributed teams with async communication. iOS & Android Developer | React Native | Flutter | Mobile App Development | Cross-Platform Apps | Dart | Swift | Kotlin | UI/UX Design | API Integration | Firebase | RESTful APIs | Git | App Store Deployment | Play Store Submission | Third-Party Libraries | Responsive Design | Testing & Debugging | Push Notifications | Performance Optimization | Mobile App Developer | iOS & Android Developer | iOS Mobile App Development | Android App Development | Flutter Mobile App Developer | React Native App Developer | Cross-Platform App Developer | Swift iOS Developer | Kotlin Android Developer | Native iOS & Android Development | Hybrid Mobile Apps Development | Flutter Dart Developer | React Native Cross-Platform Expert | Custom Mobile App Development | Mobile App UI/UX Design | Mobile API Integration | Backend APIs for Mobile Apps | iOS Swift App Development | Android Kotlin App Development | Mobile App Optimization | App Store Deployment (iOS & Android) | Mobile App Testing & Debugging | Firebase Integration for Mobile Apps | Mobile App Security & Performance | Push Notifications (Firebase, OneSignal) | Mobile App Maintenance & Support | Mobile App Monetization Strategies | Mobile Payment Integration | Cloud Sync & Mobile Data Storage

Hi, I'm Kalemba Jamil, a Full-Stack Software Developer specializing in mobile app development, web applications, backend systems, and AI-powered solutions. My expertise includes: • Flutter (Cross-Platform Mobile Development) • React Native (Android & iOS Apps) • React.js and Next.js • Python Development and Automation • Node.js and Laravel Backend Development • REST API Design and Integration • MongoDB, PostgreSQL, and MySQL • Docker, CI/CD, VPS Deployment, and DevOps • AI Integrations and Automation Solutions I have experience building mobile apps, business platforms, educational systems, APIs, and cloud-based solutions for startups and growing businesses. I focus on writing clean, maintainable code, delivering projects on time, and maintaining clear communication throughout the development process. Whether you need a Flutter app, React Native application, Python automation, backend APIs, or a complete full-stack solution, I can help turn your idea into a reliable and scalable product. Let's discuss your project and find the best solution for your business.

I am a highly skilled and experienced web and app developer with a proven track record of delivering exceptional results. With a passion for coding and a commitment to excellence, I strive to create innovative and user-friendly solutions that exceed client expectations. I possess expertise in a wide range of programming languages and frameworks such as HTML5, CSS3, JavaScript, React, Python, Java, Rust, and Kotlin.

I’m a versatile Software Engineer with over 5 years of experience building impactful, user-focused solutions across industries like Finance, Education, IoT, Crypto/Web3, Sports, Dev Tools, and Mental Health. I combine strong backend expertise with robust frontend knowledge to craft scalable, efficient, and reliable applications that solve real-world problems. Technical Expertise ☁️ Backend & Infrastructure: Languages: Node.js, Go (Golang), Python Databases: PostgreSQL, MongoDB, Redis (SQL/NoSQL hybrid approach) Cloud: Azure, AWS, and GCP 💻 Frontend Development: Frameworks & Tools: React.js, Vue.js, TypeScript, React Native Styling: Tailwind CSS, Ant Design, Material-UI 🛠️ Testing & Quality Assurance: Skilled in Test-Driven Development (TDD) with tools like Playwright, Cypress, Jest, Storybook, and React Testing Library Proficient in designing end-to-end test pipelines and integrating QA into the development lifecycle Notable Projects Schoolbook: Created a finance, academics, and administration management system for over 500 schools, scaling to manage records for 250,000+ students. Acquired by Gates and Bytes for further development. Cryptallion: A cryptocurrency portfolio tracker leveraging Next.js, TypeScript, and APIs from CoinGecko. AirSentry: An IoT indoor air quality management tool, recognized for innovation at Tech Master Events. What Drives Me I’m passionate about building software that not only works but creates a lasting impact. My engineering philosophy centers around team collaboration, scalability, and user-centric design. I thrive in dynamic environments where innovation and learning are prioritized.

🥇 𝑬𝒙𝒑𝒆𝒓𝒕 𝑭𝒓𝒐𝒏𝒕-𝑬𝒏𝒅 𝑫𝒆𝒗𝒆𝒍𝒐𝒑𝒆𝒓 🥇 Greetings! With 5+ 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 | 5+ 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. 🔎 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀 / 𝗦𝗸𝗶𝗹𝗹𝘀: Full Stack Development, Laravel Developer, Vue.js, Livewire, Node.js, Express.js, SaaS Developer, API Integrations, Social Media APIs, Facebook API, Meta API, Google API, Pinterest API, Instagram API, FFmpeg, 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

15 + Years of Experience solcing technical problems that sit at the intersection of design, automation, and product logic. Your social media is quiet while your team ships product. Your reporting lives in spreadsheets nobody trusts. Your website has no visual weight and your bounce rate proves it. Your leads fall through before anyone qualifies them. Your content strategy exists but cannot scale manually. Your brand does not hold up at enterprise level. Your 3D assets sit in a folder instead of living on your site. Your internal knowledge leaves when people do. Your infrastructure decisions are being made reactively because nobody has documented the system you are actually running. Your trade workflow breaks the moment volume increases. Your sprints are moving but nobody can explain why. All of it is fixable. The difference is knowing whether the answer is a better system, a sharper design, cleaner code, or all three working together. ------------------------------------------------------------------------------------------------ AI and Automation is the core of most of what I build. On the architecture side I work with the OpenAI API, the Anthropic Claude API, custom local LLMs, and LM Studio to design the logic and data flow for custom AI agents. For workflow automation I connect systems end-to-end using n8n, Make, Webhooks, and REST APIs. I use Cursor, GitHub Copilot, Claude 3.5 Sonnet, and ChatGPT Advanced Data Analysis daily for prompt engineering and AI-assisted coding, which means I ship far faster than a traditional development cycle allows. For programmatic SEO I automate large-scale content strategies and site architectures using Ahrefs, Google Sheets, n8n, and the WordPress API. ------------------------------------------------------------------------------------------------ On the product and strategy side I run full delivery cycles using Jira, Linear, Notion, and Slack, and I have led scrum teams through complex builds with multiple stakeholder layers. Systems design and SOP automation is a discipline I apply rigorously, mapping logic in Whimsical, Miro, FigJam, and Notion before a single line of code is written. For IT strategy and technical documentation I work across Google Workspace, Notion, and Markdown environments. I have also designed software logic for cross-border trade and logistics systems, using Figma for logic mapping alongside n8n. and custom ERP dashboards. ------------------------------------------------------------------------------------------------ The design practice runs deep. I build advanced UI/UX in Figma with the Relume Library, specializing in component systems, variants, and interactive prototypes for complex software products. Technical dashboard design for industrial and financial interfaces is a particular focus, executed in Figma and Webflow. Typographically I love working within Swiss grid systems using typefaces, my favorite being like Neue Montreal, PP Machina and Google Sans. I also produce custom isometric icon sets and 3D iconography built in Blender, Figma, and Adobe Illustrator. For visual production I do studio-grade 3D rendering in Blender and KeyShot, interactive 3D web elements using Three.js, Spline, and WebGL, and product animation and motion graphics in Blender, Adobe After Effects, and Premiere Pro. I also handle 3D printing and hardware prototyping end-to-end using Bambu Studio and OrcaSlicer. ------------------------------------------------------------------------------------------------ On the development side I architect custom CMS builds using WordPress, Elementor Pro, and Advanced Custom Fields. I design UI/UX end-to-end in Figma, from early wireframes to production-ready component systems, variants, and interactive prototypes, pulling in resources like the Relume Library where they serve the work. Performance optimization runs through WP Rocket, JSON Minifiers, GTmetrix, and Google Search Console. Ecommerce solutions are built on WooCommerce with Stripe API integration. For DevOps and deployment I work across Vercel, GitHub, Docker, and local hardware environments. ERP and CRM customization is handled through Airtable, Make, and REST APIs. Database logic is architected across PostgreSQL, MySQL, Firebase, and Supabase. ------------------------------------------------------------------------------------------------ I am a Ugandan-based technologist working with clients across Africa and the world. Every engagement I take on is treated as a systems problem first: understand the constraint, design the logic, build for scale, hand over something that outlasts the project. ------------------------------------------------------------------------------------------------ On time and ownership of what you build: "Everything else belongs to others; time alone is ours." -- Seneca, Letters to Lucilius