Neeraj K.
Mobile App Developer | React Native, Python, AI/ML, iOS & Android.
Hi, I'm Neeraj, a Top Rated Full Stack & Mobile App Developer with 8+ years of experience building mobile applications, web platforms, backend systems, and AI-powered solutions. I specialize in React Native, Flutter, Python, React, Node.js, and AI/ML. With a 100% Job Success Score and $30K+ earned on Upwork, I help startups and businesses turn their ideas into reliable, scalable, and user-friendly products. Whether you're building a new application, improving an existing product, automating a business process, or adding AI-powered features, I can help you find the right solution. What I Can Help You With : ✔ Mobile App Development — Build iOS and Android applications using React Native, Flutter, and native technologies. ✔ Full-Stack Web Development — Develop responsive web applications using React, Next.js, Node.js, and Python. ✔ Python Development — Build backend services, automation scripts, data processing solutions, and API integrations. ✔ AI & Machine Learning — Work with data preprocessing, predictive models, machine learning workflows, and AI-powered application features. ✔ Data Analysis & Processing — Clean, transform, and analyze data using Python, Pandas, and NumPy. ✔ API & Backend Integration — Develop and integrate REST APIs, Graph QL, authentication systems, databases, and third-party services. ✔ Database Development — Work with MySQL, PostgreSQL, and Firebase for data storage, management, and integration. ✔ BLE & IoT Integration — Connect mobile applications with Bluetooth-enabled devices and support real-time data synchronization. ✔ UI/UX Design — Create clean, user-friendly interfaces, user flows, and Figma designs. ✔ App Optimization & Maintenance — Fix bugs, improve performance, add new features, and maintain existing applications. My Technical Expertise: • Mobile: React Native, Flutter, Android, iOS, Kotlin, Swift • Frontend: React, Next.js, JavaScript, TypeScript • Backend: Python, Node.js, Express.js, REST APIs, Graph QL • AI & Machine Learning: Python, Pandas, NumPy, Scikit-learn, Data Preprocessing, Predictive Modeling, AI Integration • Databases: MySQL, PostgreSQL, Firebase • IoT & Integrations: Bluetooth Low Energy (BLE), Maps, Geolocation, Push Notifications • Tools & Workflow: Git, CI/CD, Agile Development, Figma Why Work With Me ? ✓ Top Rated freelancer with a 100% Job Success Score ✓ 8+ years of software development experience ✓ $30K+ earned through Upwork projects ✓ Experience across mobile, web, backend, and AI/ML development ✓ Clear communication and realistic project commitments ✓ Hands-on involvement throughout the development process ✓ Focus on quality, reliability, and long-term client relationships I understand that every project is different. Before starting, I take the time to understand your business goals, requirements, and expectations so I can suggest the right approach. I believe in honest communication, realistic timelines, clean code, and delivering work that meets your expectations. You will work directly with me throughout the project, and I will remain your main point of contact. I also lead my own in-house team, allowing us to handle projects of different sizes while maintaining consistent quality and communication. My goal is not just to complete your project but to build a professional relationship you can rely on. Let's Discuss Your Project ! Whether you need a mobile app, a full-stack web application, a Python-based solution, or AI/ML integration, I'd be happy to hear about your requirements. Feel free to send me a message. Let's discuss your idea and how I can help bring it to life. Best regards, Neeraj K.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $8k
Billed in all: $31,571$32k
$1.6k in the last 6 months
Earnings, last 30 days
Skill rankings: #1 in 1 skill of 20
Rarest: top 6% in App Store Upload, of 193. Ranked by MRR among everyone on Upwork with the skill.
- Across Language Server2 freelancers · 🇮🇳 #1Top 50%🇮🇳#1 of 1
- #11App Store Upload193 freelancers · 🇮🇳 #4Top 6%🇮🇳#4 of 46
- #28Core Java275 freelancers · 🇮🇳 #13Top 10%🇮🇳#13 of 129
- #42VoIP352 freelancers · 🇮🇳 #8Top 12%🇮🇳#8 of 50
- #52WebRTC468 freelancers · 🇮🇳 #19Top 11%🇮🇳#19 of 163
- #65Apple Xcode881 freelancers · 🇮🇳 #27Top 7%🇮🇳#27 of 312
- #107Twilio API710 freelancers · 🇮🇳 #28Top 15%🇮🇳#28 of 225
- #112In-App Purchases1,101 freelancers · 🇮🇳 #33Top 10%🇮🇳#33 of 336