Hire the best Android Developers in London, ENG
Check out Android Developers in London, ENG with the skills you need for your next job.
- $80 hourly
- 4.8/5
- (107 jobs)
Welcome! I’m Rehan Ahmed, a Results-Driven Digital Solutions Expert and Founder of Smart Web Agency. I specialise in empowering organisations worldwide with AI-powered innovations, business automation, and bespoke digital solutions that drive growth, inclusivity, and efficiency. With over 12 years of experience, I’ve helped businesses achieve seamless operations through tailored websites, mobile apps, and robust back-end systems. Why choose me? I’m committed to delivering exceptional quality by combining technical expertise with a deep understanding of client goals. My track record includes: 1. Transforming businesses through AI-driven automation and optimisation. 2. Building innovative AI chatbots trained on client-specific data. 3. Creating inclusive solutions such as an AI system for the UK government to promote diversity and inclusion. 4. Designing bias-free recruitment systems to ensure fairness in hiring. 5. Pioneering research in AI accessibility solutions to enhance digital inclusivity. 6. Delivering high-quality bespoke projects on time, within budget, and aligned with client visions. Key projects and services: ✅ AI-Driven Business Automation: Optimise operations, reduce costs, and enhance productivity. ✅ Custom AI Applications: Personalised AI chatbots, recruitment systems, and accessibility tools. ✅ Website Design & Development: Stunning, user-friendly, and high-performing websites. ✅ Mobile & Web App Development: Cross-platform solutions to meet unique business needs. ✅ SEO & Hosting: Drive traffic and ensure reliable, scalable hosting solutions. ✅ Security & Accessibility Audits: Safeguard your systems and ensure global inclusivity standards. ✅ Startup MVP Development: Turn innovative ideas into reality with tailored MVP solutions. Core skills and expertise: ⭐️ AI-Powered Solutions ⭐️ Business Automation Consultancy ⭐️ WordPress & WooCommerce Development (Custom plugins expert) ⭐️ Ethereum Smart Contract Development ⭐️ Laravel & PHP Custom Development ⭐️ Cross-Platform Mobile App Development ⭐️ Graphic Design & Web Design Technology stack: 🔹 Languages: PHP, Python, JavaScript (React & Vue), CSS, HTML/HTML5 🔹 Frameworks: Laravel, CodeIgniter, CakePHP 🔹 AI Tools & Platforms: ChatGPT, LangChain, RAG Systems, Voiceflow 🔹 Databases: MySQL, MSSQL, MongoDB 🔹 Automation Platforms: Make.com, Zapier 🔹 Hosting Platforms: Google Cloud, AWS, Azure, Digital Ocean, CPanel What sets me apart? 🌟 A unique blend of AI expertise, technical proficiency, and strategic insight. 🌟 A history of delivering complex, innovative, and impactful solutions. 🌟 Transparent communication, a collaborative approach, and unwavering dedication to success. Let’s build something amazing together! Whether it’s automating your operations, building inclusive systems, or delivering bespoke digital solutions, I’m here to make your vision a reality. Get in touch today to start your transformation journey!Android
SwiftiOS DevelopmentReact NativeLAMP StackOpenCartSitecoreCodeIgniterReactJavaScriptPHPAngularWeb ApplicationLaravelNode.jsJoomlaCakePHPWordPressDrupalMongoDB - $60 hourly
- 5.0/5
- (23 jobs)
🚀 Top-Rated Full Stack Developer | React Native | Node.js | React Expert 🚀 Greetings! I'm an accomplished full stack developer with over 8 years of hands-on experience in transforming innovative ideas into fully functional and responsive mobile applications and web applications. Armed with a Software Engineering degree, my commitment is to deliver top-quality solutions that blend security, cleanliness, and scalability. My Skill Set: ✅ React Native ✅ Javascript (ES6), Typescript ✅ Node.js ✅ MongoDB ✅ React ✅ AWS ✅ Redis Database Proficiency: ✅ PostgreSQL, MySQL, MongoDB, Firebase/Firestore Methodology: ✅ Agile and Scrum Testing Tools: ✅ Jest Why Choose Me? 💡 Innovative Solutions: I specialize in crafting applications that are not only bug-free and secure but also visually appealing and user-friendly. 🔄 Scalability: My code is designed to scale with your business, ensuring a seamless user experience as your application grows. 🌐 Cross-Platform Expertise: From React Native for mobile apps to React for web apps, I have the versatility to bring your vision to life across platforms. Upwork Success: 🏆 Top-Rated: Currently, I hold the prestigious Top-Rated status on Upwork, boasting a 100% success rate. My commitment to excellence and client satisfaction sets me apart. Let's Build Something Great: I'm enthusiastic about discussing your project ideas and collaborating to build state-of-the-art mobile and web applications. Your success is my priority! Feel free to initiate a conversation, and let's turn your concepts into reality.Android
UnityRuby on RailsNode.jsAPI IntegrationReact NativeTypeScriptJavaScriptFirebase - $70 hourly
- 5.0/5
- (27 jobs)
🇺🇦 🌍 Ukrainian based in London ✅ 12+ years of experience in different technologies. 🚀 Application from idea to release ⌨️ Post-release maintenance and support 📱 30+ successfully developed applications ✅ Upwork Verified Top Rated Plus Developer ⭐⭐⭐⭐⭐ rating Welcome to my profile! With over a decade of dedicated development experience, I specialize in creating cutting-edge applications that deliver user-friendly, engaging, and performant experiences. My proficiency in product development enables me to bring any app idea from concept to launch seamlessly. My approach is collaborative and transparent, ensuring that communication is clear and expectations are aligned from the outset. I pride myself on my ability to solve complex problems and adapt to new challenges, which is reflected in the diverse range of projects in my portfolio. Clients appreciate my commitment to quality and attention to detail, whether I'm working on innovative startups or established enterprises. My goal is to not only meet but exceed your mobile app development needs, providing post-release support to ensure your application evolves with your business. I am Upwork Verified and have a track record of success, with consistent five-star feedback. If you're looking for a reliable, skilled, and proactive mobile developer, let's connect and bring your vision to life.Android
Project ManagementFinTechDartUser AuthenticationSmartphoneChat & Messaging SoftwareJavaScriptSwiftFlutterJavaTypeScriptiOSKotlinNative App Development - $100 hourly
- 5.0/5
- (14 jobs)
I have over 15 years of programming experience, and graduated with a first-class degree in computer science from a well-known university in the UK. I worked as a database administrator and software engineer for the government, and in the online retail industry. I feel that my strengths are in communicating with clients to understand their needs and help them to nail down the requirements for their project, and in creating cleanly architectured systems which are painless to operate and maintain. I specialise in developing back-end systems and full-stack web-applications, and have independently developed tools used for purposes such as data integration, finance, CRM and reporting/analysis. I also have considerable experience working with databases, big-data and cloud systems. Additionally, I have worked for many years on video games and Android applications, acquiring experience in computer graphics and mobile application development. I am currently running my own independent game development studio.Android
Game DevelopmentDatabase AdministrationApp DevelopmentCloud ComputingWeb DevelopmentScriptingBig DataDatabase ProgrammingSQL - $25 hourly
- 5.0/5
- (15 jobs)
Hi, I'm Haseeb Islam, a seasoned Full-Stack Developer with 7+ years of experience, I specialize in scalable mobile & web applications, delivering high-performance solutions tailored to your needs. I ensure clean architecture, optimized performance, and seamless user experiences every time. 𝗞𝗲𝘆 𝗛𝗶𝗴𝗵𝗹𝗶𝗴𝗵𝘁𝘀: 🏆 100% Positive Feedback on Upwork 🌟 10+ Years of Experience 🔥 Proven Track Record in Delivering Exceptional Projects 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 & 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸: 🔹 Mobile App Development – React Native, Flutter, Expo, Kotlin, Swift 🔹 Web Development – React.js, Next.js, TypeScript, Tailwind CSS, Vue.js 🔹 Backend Development – Node.js, Express.js, NestJS, Laravel, GraphQL 🔹 Databases & Cloud – PostgreSQL, MongoDB, Firebase, AWS, Supabase, Vercel 🔹 API Development & Integration – RESTful APIs, GraphQL, WebSockets 🔹 E-commerce Solutions – Shopify, WooCommerce, Stripe, PayPal, Headless CMS 🔹 UI/UX & Performance Optimization – Figma, Chakra UI, Material UI, A/B Testing 🔹 DevOps & Infrastructure – Docker, Kubernetes, CI/CD, Cloudflare, Vercel 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘇𝗮𝘁𝗶𝗼𝗻𝘀: ✅ SaaS Platforms & Dashboards ✅ AI-Powered Applications (GPT, OpenAI, LangChain) ✅ Real-Time & Event-Driven Apps ✅ E-commerce & Subscription-Based Platforms ✅ Fintech & HealthTech Solutions ✅ Web3 & Blockchain Integrations (Solidity, Smart Contracts) 𝗥𝗲𝗰𝗲𝗻𝘁 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀 & 𝗔𝗰𝗵𝗶𝗲𝘃𝗲𝗺𝗲𝗻𝘁𝘀: 🔹 GymRite – Fitness app with AI-driven workout recommendations & community features 🔹 BeeMe – Gamified personal development platform for kids 🔹 E-learning Platform – Real-time notifications & interactive content 🔹 Job Search Engine – AI-powered job matching with a seamless UX 🔹 Scalable Shopify Stores – Custom checkout flows, API integrations, and Stripe 𝗪𝗵𝘆 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲? ✔ Scalable, High-Performance Code – Clean architecture & best practices ✔ Fast & Agile Development – Delivering MVPs in record time ✔ Seamless Communication & Support – Transparent & long-term collaboration ✔ Trend-Focused Tech Stack – Leveraging the latest tools & frameworks Let's work together to turn your vision into reality. Feel free to reach out to me anytime! 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀: Mobile App Development, iOS Development, Android App Development, React Native, iOS SDK, JavaScript frontend developer, HTML5/CSS3 developer, Responsive web design, CSS animations, CSS transitions, Progressive web apps, Frontend performance optimization, WordPress plugin development, WooCommerce development, WordPress site, WordPress security, Elementor page builder, Google Maps API, Firebase, Bluetooth, In-App Subscription, Fitness Tracker, Mobile Device, Health & Wellness, Swift, Objective C, Java, Kotlin, Flutter.Keywords: Full stack web development, MERN stack developer, Full stack JavaScript developer, Frontend integration, Full stack app development, RESTful API integration, Database design, DevOps for full stack, AWS, Server-side development, Node.js API development, RESTful API development, Node.js and MongoDB, Node.js, Express.js, JavaScript backend, Real-time applications, Frontend React developer, Redux development, React and REST API, Next.js development, React.js optimization, Frontend web development, SEO for WordPress, WordPress speed optimization, Node.js, Shopify development, Mongo DB, TypeScript, MySQL,Stripe, JavaScript,Android
APIPayment Gateway IntegrationJavaScriptReactiOS DevelopmentMobile App DevelopmentQR & Barcode ScannerFlutterSwiftNode.jsPush NotificationsFirebaseThird-Party IntegrationIn-App PurchasesAPI IntegrationReact Native - $20 hourly
- 4.7/5
- (47 jobs)
🏆 𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗖𝗼𝗻𝘁𝗿𝗮𝗰𝘁𝗼𝗿 I bring over 𝟳+ 𝘆𝗲𝗮𝗿𝘀 of experience in Development Technology, with expertise across various domains. 💼 𝗖𝗼𝗿𝗲 𝗦𝗸𝗶𝗹𝗹𝘀 & 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: 🔹 Backend Interaction: REST API, JSON, XML 🔹 Social Media Integration: Facebook, Twitter, Instagram, Google, Apple 🔹 Real-time Communication: XMPP, Socket, Firebase, Twilio, Agora 🔹 Payment Integration: PayPal, Stripe, Square 🔹 Geolocation & Mapping: Google Maps, Apple Maps, GPS, Location Tracking 🔹 Live Streaming: Audio/Video Streaming 🔹 Push Notifications & Analytics: Firebase, FCM, Firestore, Firebase Analytics 🔹 AI & Chatbots: ChatGPT, OpenAI, AI Integration 🔹 Version Control: GitHub, GitLab, Bitbucket 🔹 MERN Stack: MongoDB, Express.js, React, Node.js 🔹 Java Full Stack: Spring Boot, Hibernate, JPA 🔹 DevOps & Containerization: Docker, Kubernetes 🔹 Microservices Architecture: Scalable, maintainable solutions 🔹 API Development: Seamless API integration 📌 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝘆 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: Over the past decade, I’ve developed a diverse range of apps across multiple industries, including: 🛎️ Fintech: Payment apps, budgeting tools 🛎️ Healthcare: Telemedicine, health records apps (HIPAA-compliant) 🛎️ E-commerce: Shopping apps, delivery tracking 🛎️ Real Estate: Property listing apps, mortgage calculators 🛎️ Education: E-learning platforms, quiz & assessment apps 🛎️ Travel & Tourism: Travel booking apps, tour guide apps 🛎️ Food & Restaurant: Food delivery, table reservation apps 🛎️ Entertainment: Streaming apps, event ticketing 🛎️ Automotive: Car rental, vehicle tracking apps 🛎️ Fitness & Wellness: Workout tracking, nutrition apps 🛎️ Social Networking: Social media, dating apps 🛎️ IoT & Bluetooth: IoT control apps, smart device control 🛎️ Blockchain & Cryptocurrency: Wallet apps, blockchain solutions 🌟 𝗪𝗵𝘆 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲? 🔹 Uncompromising Quality: High-performance apps tailored to your needs, built with precision and attention to detail. 🔹 Timely Delivery: I pride myself on delivering projects on time, every time. 🔹 Full-stack Expertise: From Android and iOS to backend systems and databases, I have the skills to handle your entire project. 🔹 Cutting-edge Technologies: Always up-to-date with the latest AI, IoT, and AR trends. 🔹 Cost-effective Solutions: I offer top-quality results without breaking your budget. 🔹 Long-term Partnerships: I focus on building lasting client relationships through trust and high-quality work. 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 𝗜 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵: 🔸 Mobile Development: Kotlin, Java (Android), Swift, Objective-C, SwiftUI (iOS) 🔸 Cross-Platform: Flutter (Dart), React Native 🔸 Backend & Web Development: Node.js, PHP, Python, Laravel, Express.js, Django 🔸 Frontend Development: React.js, HTML5, CSS3, JavaScript, Bootstrap, jQuery 🔸 Databases: SQLite, MySQL, MongoDB, PostgreSQL 🔸 DevOps: Docker, Kubernetes, GitLab CI/CD 🔸 Latest Trends: AI, IoT, Blockchain 💬 𝗙𝗥𝗘𝗘 𝗖𝗢𝗡𝗦𝗨𝗟𝗧𝗔𝗧𝗜𝗢𝗡: I offer a free consultation to explore how we can collaborate and achieve your project goals. Let's schedule a quick introductory call to discuss your needs and how I can assist you. Even if we don't end up working together, you'll walk away with valuable tips and insights that could benefit your project. Simply click the '𝗜𝗻𝘃𝗶𝘁𝗲 𝘁𝗼 𝗝𝗼𝗯' button, and let's start a conversation to see what we can create together! 🙌 𝗧𝗵𝗲 𝗸𝗲𝘆𝘄𝗼𝗿𝗱𝘀 𝘁𝗼 𝗳𝗶𝗻𝗱 𝗺𝗲: Mobile App Developer, Mobile App Development, Android App Development, iOS App Development, Native App Development, Android Developer, iOS Developer, Cross-Platform Development, Custom App Solutions, Backend Development, Full Stack Developer, API Integration, Mobile UI/UX Design, Kotlin Developer, Swift Developer, Java Developer, SwiftUI Developer, Flutter Developer, Dart Developer, React Native Developer, Node.js Developer, PHP Developer, Python Developer, Laravel Developer, Express.js Developer, Django Developer, React.js Developer, HTML5 Developer, JavaScript Developer, jQuery Developer, Bootstrap Developer, Firebase Developer, AWS Developer, Google Cloud Developer, Docker Developer, Kubernetes Developer, DevOps Developer, Mobile App Design. Regards, Ravi JasoliyaAndroid
DockerHibernateSpring BootWeb DesignMobile UI DesignJavaiOS DevelopmentMobile App DevelopmentReactDartReact NativeFlutterSwiftHybrid App Development - $10 hourly
- 5.0/5
- (5 jobs)
Over 3 years of experiences in Web/ Mobile app development for both iOS and Android devices. I am proficient with using cross-platform frameworks (React Native). I have worked on numerous projects from concept to completion. I’m trying to learn new technologies and ways that how can I polish skills for the industry level. Having a broad knowledge of these technology allows me help clients in making decision to select the most suitable solution for their idea. Not only I can develop applications based on the specs, but I also work closely with clients to help them define their specs. I can participate in all stages in the app development, from clarifying requirements to publishing to App Store/Google Play. Specialties: ~ IOS App Development (React Native). ~ Android App Development (React Native). ~ Front-end Development. ~ Web App Development (React JS). ~ Backend Integration (Firebase, Node JS).Android
NodeJS FrameworkMobile AppMobile App TestingGitHubNode.jsSmartphoneReactReact NativeFirebaseiOSAndroid App DevelopmentMobile App DevelopmentHTML5JavaScript - $20 hourly
- 4.9/5
- (17 jobs)
I have dedicated over 5 years to professional mobile app development, with a diverse skill set covering iOS, Android, Flutter native, and hybrid app development. During this extensive period, I have successfully crafted more than 25+ apps for clients and companies situated in the UK, USA, Germany, India, and Canada. My clientele ranges from scale-up ventures to Fortune 30+ enterprises. Here's what I bring to the table: ✅ Proficiency in Flutter and Dart. ✅ Expertise in iOS, Android, Swift, Objective-C, Java, and Kotlin. ✅ Capabilities in client/server development and database/web interfaces. ✅ Firebase, Firestore, Crashlytics, Analytics, Dynamic Links, Cloud Messaging ✅ A keen eye for UI/UX design. My knowledge of state management solutions such as Provider, Riverpod, GetX, MVC pattern, and Bloc, along with experience in working with different architectures like MVC and MVVM, has allowed me to create robust and efficient applications. I have also integrated various payment gateways like Paypal, Stripe, Rozarpay, and in-app purchases, ensuring seamless payment experiences for users. Should you be concerned about time-sensitive seasonal updates or feature enhancements, rest assured that I've got you covered. I prioritize building enduring partnerships with my clients, eliminating the need for you to engage multiple developers for each modification or outdated library. I'm eager to transform your concepts into reality, so please don't hesitate to get in touch and discuss your requirements.Android
CI/CDAOSPFlutter StackFlutterFlowMobile AppAPI IntegrationMobile App DevelopmentFirebaseDartiOS DevelopmentMongoDBKotliniOSFlutter - $60 hourly
- 5.0/5
- (26 jobs)
I'm employed as a professional Software Developer and simply love coding. I have extensive experience and tackle complex problems on a daily basis, therefore I'm ready to take on any issue you need to solve. Being from the UK and am a native speaker, having graduated from University with a degree in Computer Science, I have expert knowledge of the field. I'll be excited to provide you with an immaculate service. Enjoy affordable, professional quality.Android
NetSuite DevelopmentSuiteScriptAndroid App DevelopmentAngular 6FirebaseSQLJavaScriptJavaTypeScript - $31 hourly
- 5.0/5
- (3 jobs)
I have been developing Mobile applications for the last 6+ years. Not only develops the apps but also works with clients to convert their ideas into robust and high-quality functional applications. Having robust technical knowledge and professional experience in Flutter (Hybrid) Application Development. I also having experience in a wide variety of business applications with quality of code, User-Interface Development, Web Service Integration, and 3rd Party SDK Integration. ★ Skills * Expert Mobile app development. * Expert Android Developer. * Expert Flutter app development. * Expert UI / UX Graphics Design. ★ More Specific expertise * Fitness/Health sector apps * Geo-Location related app * Push Notification service * Creating SDK and Framework * Social & Event based apps * Messenger & Chat based apps * Fluent English Speaking * Professional, Friendly and Flexible ★ Services * High Quality * Full Time (40+ hours / a week) * Daily or weekly result during development. * deliver clean and robust code, upload apps on the app store after development. * maintenance and any update with free after development. * Responsible communication for each day. * Be responsible to all projects I'm a highly motivated and reliable mobile developer, committed to doing a great job while respecting deadlines. I am now seeking opportunities to enhance my abilities more, learn new things and become an asset to your organizations. I am looking forward to having mutual benefits with my future clients. Thanks for your consideration!Android
FlutteriOS - $50 hourly
- 5.0/5
- (14 jobs)
I offer high-quality, affordable development, providing customized solutions that fit your business's unique needs. With over 8 years of experience in the software industry, I have helped many businesses across different sectors succeed by delivering exceptional custom web/blockchain/AI development services. I guarantee visually engaging, highly interactive, and responsive development work to win the hearts of your ever-demanding customers. I have experience in • Mobile App: Flutter, React Native, Java, Kotlin, Objective-C, Swift, etc. • Frontend: Vue.js, React.JS, Quasar framework, Javascript, • Blockchain: Solidity/Web3 for ERC20/NFT/Tokenomics, Smart Contract/dApp • AI: Python, Django, AI/ML, CNN, NLP • AR/VR: ARFoundation, ARKit, ARCore, Vuforia, Visionlib, and AR dev, also familiar with Oculus, HTC Vive, and VR development. • Game: Mobile and PC, web game with Unity. • Backend: Laravel, Node.js, • Database: MySQL, MongoDB, PostgreSQL • Payment Gateways: Stripe, Braintree, Paypal • 3rd party services: Firebase, ChatGPT, Twilio, Branch.io, Mixpanel, AWS, GCP, Agora.io, OneSignal, Sendgrid, Img.ly If you have any work, I'd be happy to help! Feel free to reach out to me at any time. Thank you!Android
SolidityWeb3PythonAI DevelopmentBlockchainJavaScriptKotlinSwiftiOSReact NativeAugmented RealityVirtual RealityUnityC# - $50 hourly
- 5.0/5
- (1 job)
A dedicated Solutions Architect with a strong focus on ERP, eCommerce, Cloud, and Digital Solutions. I thrive on architecting innovative solutions that drive business growth and deliver exceptional value to clients. Throughout my career, I've had the privilege of collaborating with industry leaders and have contributed to numerous successful projects (Pls refer to my portfolio), These experiences have equipped me with a deep understanding of the complex challenges businesses face today and the ability to provide tailored solutions.Android
PHPJavaC++iOSGraphic DesignWeb ApplicationMobile AppERP SoftwareSoftwareWeb Development - $50 hourly
- 5.0/5
- (3 jobs)
Hello, my name is Philip and I have 8+ years of experience as a Full Stack Developer [UI/UX | NodeJS | Angular | ReactJS | Native iOS/Android Apps | Hybrid iOS/Android Apps]. 👉 About me: ✅ 8+ years proven track record in Web & Mobile Designing + Development. ✅ Solid experience in the development of OOP-best practices functionalities ✅ Extensive experience in projects as a team leader ✅ Tech Stack: NodeJS, Angular, React, UI/UX, JavaScript, React Native, Flutter, PHP, Laravel. ✅ Segments: E-commerce, ERP, CRM, Marketing websites, etc. ✅ Development for me is not just a code, but a whole business process for which I always find effective and competitive solutions. As of now, I'm part of the Codezee Solutions team where I can deploy my professional engagement and create top-notch web apps | Websites | Mobile Apps. 🕘 MY WORKING HOURS: Open to work 24*7 🌻 Thanks for your time and good luck!Android
LaravelMySQLMongoDBASP.NETCodeIgniterPHPWordPressNode.jsWooCommerceReactAngularMobile App DevelopmentWeb DevelopmentiOS - $165 hourly
- 5.0/5
- (56 jobs)
✅ Upwork Top 1% Expert Vetted ✅ 6500+ Hours ✅ 100% Success Score Hi, I'm Adam, an experienced CTO, team lead, and cybersecurity expert based in London, UK. With a proven track record of success, I've worked with hundreds of clients worldwide, guiding their projects from the idea stage through to completion, launch and growth. My experience, coupled with my deep technical expertise, allows me to be very hands on and practical when needed, and consistently deliver amazing results. If you’re dealing with missed deadlines, poor quality work or technical problems that your team are struggling to solve, I can help. I'm a Chartered Engineer (CEng) and a Chartered IT Professional (CITP), I and also hold a range of industry leading technical certifications including the CISSP, CISA, CISM, OSCP and OSCE. Clients commonly engage me to: - Hire and/or manage their technical team - Design and build technical solutions - Help solve complicated technical problems - Help scale a technical product to support and meet business growth - Assess or rescue failing projects - Explain and help mitigate business threats and risks (e.g. security, disaster recovery, backups and redundancy) - Provide an audit and unbiased technical opinion and "explain the options" I enjoy working with startups and fast moving projects, and solving complex challenges. My full profile including more testimonials, technical qualifications and a link to book a free strategy call is available at consultwithadam.comAndroid
Information Security ConsultationNetwork SecurityProduct RoadmapLAMP AdministrationInformation SecurityInternet SecurityEmbedded SystemLaraveliOSWeb DevelopmentPHPPenetration TestingWeb ApplicationVulnerability Assessment - $100 hourly
- 5.0/5
- (19 jobs)
I have 10+ years of experience in building user-friendly and complex mobile applications. I have a solid knowledge of modern mobile app development using Kotlin, Jetpack Compose, Clean Architecture, high standards, and the latest trends in Android technology's stack. Digging into business problems is a crucial part of my approach. I believe in architecting solutions that not only meet immediate technical needs but also align with the business goals of the organization. Important highlights of my work: • Most Mobile apps in my portfolio are built from scratch by me where I was a leading engineer. • My response time is 1 hour maximum. I am always in touch. • I know how to achieve a 99.9% crash-free rate. • I was elevating the app rating from 2.8 to 4.6 stars out of 5 in Google Play. • I am not an agency, I am doing 100% work in person. • I provide efficient work and I am able to replace a small mobile team. • My hourly rate is negotiable. Feel free to suggest your rate. My technical skills: • Programming languages: Kotlin, Java, SQL. • Tools: Kotlin coroutines, RxJava, Retrofit, Apollo GraphQL, Dagger/Hilt, Room, Android architecture components. • Frameworks: Android, Jetpack Compose, Firebase, Facebook, AdMob, Google Maps, Segment, Iterable, Apollo GraphQL. • Architecture: Multi-modular, Clean, MVP, MVI, MVVM • Environments: Android Studio, JIRA, Confluence, Youtrack, Git, Jenkins. • Methodologies: Agile, Scrum, Kanban • CI: Bitrise, Jenkins • VCS: Github, Gitlab, Bitbucket • Image loading and caching: Picasso, Glide, Coil. • Unit tests: JUnit, Mockito, Robolectric. • Other: Team leadership, Code review, Scrum master, Consultant, Mentor. Let's collaborate to bring your mobile app ideas to life and make them stand out in the competitive app market.Android
JetPackFlutterAndroid App DevelopmentJavaKotlinNative App Development - $60 hourly
- 4.9/5
- (24 jobs)
Game developer with more than 14 years of working experience. Unity developer certified. Big and small companies/teams (Trailmix Games, Gram Games, Jam City, The Other Guys, Widow Games, Wannabe, The Whitebox, etc.) Different languages (C#, C++, C, Java, Scala, Javascript, Python, PHP, HTML) Different platforms (Android, iOS, Mac, Windows, Console, AR/VR, Arduino, Raspberry) Multiple freelance clients (5Seis, Nespresso, Phillips, Warner Bros, Boca Juniors Football Club, etc)Android
Game DevelopmentMobile App DevelopmentGame DesignPrototypingIn-App PurchasesMobile GameUnityPersonal ComputeriOSJavaScriptC#Phaser - $40 hourly
- 5.0/5
- (46 jobs)
With 15 years of hands-on experience in mobile app development, I specialize in building and optimizing iOS and Android applications from scratch or enhancing existing projects. Having developed over 120 apps and invested more than 25,000 hours in app development, I bring deep expertise in creating high-performance, scalable applications using Flutter, Firebase, and React Native. My solutions strike the ideal balance of quality, price, and timeline. 🌟 Why Choose Me? 🥇 Time-Tested Reliability Through over a decade of experience, I've built a system to catch and resolve blockers early on, ensuring your project stays on schedule and within budget. 🥇 Responsive Communication Available at your convenience, I guarantee a prompt 60-minute response time for any inquiries or updates on your project. 🥇 Future-Ready Code Your app will be built using the latest technologies and best practices, making it easy to support and expand. With 94 successful app completions, I deliver efficient, maintainable code for smooth updates and feature additions. 🥇 Comprehensive Development Cycle From the initial discovery phase through development, release, and maintenance, I provide end-to-end service. I’ve created 36 detailed Technical Specifications and spent countless hours refining discovery and development phases to deliver custom solutions tailored to your needs. My Expertise as your ideal app developer and software developer • Mobile App Development: Android, iOS, & Cross-Platform App Development using Java, Kotlin developer, Swift, IOS developer, Java developer, Android developer, Objective C, React Native, React, Flutter developer, flutterflow, flutter firebase, flutter dart, flutter laravel, android app publisher, android reverse engineer, WordPress developer, front end, full stack developer. We do a lot of migrations away from Laravel and Python • Website and Full Stack Developer: Crafting seamless back-end experiences as web developer with React.js, MongoDB, Firebase, etc. •mobile app design: Bringing your ideas to life with Adobe XD, Photoshop, Sketch, Figma, etc. • mobile app testing: Verifying that all features work as intended across different devices and platforms. mobile app marketing: Enhancing your app’s visibility on Google Play and the Apple App Store with targeted keyword research, optimized descriptions, and creative icon and screenshot design. • End-to-End Solutions: From logo design, UI/UX development, workflow setup, testing to deployment in app stores, we've got it all Developed more than 120 apps using Flutter, Android/iOS, Firebase, MongoDB, and API Integration: ✅ Finance iOS Mobile App. Neobank solutions, loan applications, and exchange platforms. ✅ E-commerce app developed with the development team Project description: Mstore Flutter is the number one and the largest shopping destination. Developer to Build an Service Marketplace App for iOS/ Android ✅ Health Mobile App front end, back end. Online doctor consultations, electronic prescriptions, medication reminders, and drug purchases. ✅ Ecommerce. Mobile commerce apps for online shops and digitizing offline businesses. ✅ Social networking. Applications similar to Facebook and various messaging platforms. ✅ Mobile Software Engineer for Dating. Innovative dating apps like Tinder, equipped with audio, video calls, and chat features. ✅ iOS maestro for Travel. Flight and hotel bookings, apartment rentals, navigation, sightseeing apps, and audio guides. ✅ Fitness App with ChatGPT Integration. Fitness apps that create personalized workouts and track progress. ✅ IoT. Solutions to connect any hardware to mobile devices. ✅ Mobile Software Engineer for Blockchain. Cryptocurrency applications, including exchanges, wallets, and NFT creation tools. ✅ Augmented reality. 3D apartment tours, outdoor AR advertising, and engaging AR apps for children. ✅ Media iOS Mobile App. Apps resembling TikTok and Instagram, video portals, educational video apps, and photo games. ✅ Create an Uber-style app. Apps for clients to find taxis and for drivers to manage orders and navigate routes. ✅ Task management. Personal and team task planners, along with calendar applications. ✅ News & blogs. Platforms for publishing and sharing articles, images, and videos. ✅ Real estate Android App developer. Apps for brokers and developers to sell properties, as well as property management tools for investors. ✅ Restaurants app development. Queue management for table reservations, online meal sales, and electronic menus. ✅ Flutter Developer for Food delivery. Delivery apps similar to Glovo for online food sales. Built to Scale: My Technical Proficiency flutter, react native, ios development, dart, java, API integration, android, user authentification, user profile creation, python, javascript Got an app idea that you think is ready to make a splash? Let's dive in and explore it together in a free intro call.Android
Apple XcodeObjective-CKotliniPad App DevelopmentiPad UI DesigniPhone UI DesignSwiftAndroid SDKJavaScriptPythonUser Profile CreationUser AuthenticationAndroid App DevelopmentSmartphoneMobile App DevelopmentiOSAPI IntegrationJavaDartiOS DevelopmentReact NativeFlutter - $45 hourly
- 4.8/5
- (92 jobs)
Looking for a skilled Project Manager to ensure your projects are delivered on time, within budget, and beyond expectations? Hi, I’m Saleem! I am a Top Rated Freelancer with 7+ years of experience in project management and IT solutions. Currently pursuing a Master's Degree in Project Management from the University of Hertfordshire, UK, I bring both academic knowledge and hands-on expertise to deliver exceptional results for my clients. My combined technical and managerial background allows me to effectively bridge the gap between stakeholders and development teams, ensuring alignment, efficiency, and success throughout the project lifecycle. Why Choose Me? ✔ Advanced Project Management Expertise: Supported by ongoing postgraduate studies in Project Management, I excel in scoping, planning, risk management, and execution. ✔ Technical Proficiency: My extensive background in software development equips me to understand technical requirements and challenges better than most managers. ✔ Client-Centric Approach: I prioritize communication, transparency, and delivering measurable outcomes that meet or exceed client expectations. My Expertise Includes: Project Management Skills: Agile, Scrum, and Waterfall methodologies Project planning, scheduling, and resource allocation Risk assessment and mitigation Stakeholder communication and progress reporting Cross-functional team leadership Technical Knowledge: Mobile Development (Android, iOS, Flutter, Hybrid Apps) Backend Development (Node.js, Laravel, PHP, ASP.NET) Frontend Frameworks (Angular.js, React.js, Vue.js) UI/UX Design (Adobe XD, Figma, Photoshop, Illustrator) Database Management (MySQL, MongoDB, PostgreSQL) Tools & Platforms: Jira, Trello, Asana (Project Tracking) Slack, MS Teams, Zoom (Communication) Gantt Charts, MS Project, and Excel (Planning) GitHub, GitLab, Bitbucket (Version Control) Let’s Collaborate: If you’re looking for a dedicated project manager with a strong academic foundation and proven industry experience, I’d love to discuss your project. Let’s bring your vision to life—efficiently and effectively!Android
Mobile AppFirebaseWebsite CustomizationApp DevelopmentReactNode.jsFlutterUI/UX PrototypingUX & UIVue.jsProgressive Web AppDartNative App DevelopmentiOS - $70 hourly
- 5.0/5
- (0 jobs)
At Code Precision, we create powerful, personalized software solutions for businesses of all sizes and specialties. For us, it's not about meeting a set of fixed requirements. It's about building elegant, flawless code that not only runs like clockwork, but also captures your vision of the perfect software in both form and function. Code Precision solutions aren't just written. They're crafted and engineered for precise performance, with a passion for perfection that is unequaled in the software industry.Android
Unity3D ModelingWeb ServiceAnimationiOSDatabaseLaravelSymfonyPHPAPI.NET FrameworkHTML5C#JavaScriptJava - $60 hourly
- 5.0/5
- (36 jobs)
𝐀𝐫𝐞 𝐲𝐨𝐮 𝐥𝐨𝐨𝐤𝐢𝐧𝐠 𝐟𝐨𝐫 𝐚 𝐫𝐞𝐥𝐢𝐚𝐛𝐥𝐞 𝐭𝐞𝐜𝐡 𝐩𝐚𝐫𝐭𝐧𝐞𝐫 𝐭𝐨 𝐛𝐮𝐢𝐥𝐝 𝐚 𝐪𝐮𝐚𝐥𝐢𝐭𝐲 𝐚𝐩𝐩 𝐭𝐡𝐚𝐭 𝐬𝐨𝐥𝐯𝐞𝐬 𝐛𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐛𝐨𝐭𝐭𝐥𝐞𝐧𝐞𝐜𝐤𝐬 𝐨𝐫 𝐥𝐚𝐮𝐧𝐜𝐡𝐞𝐬 𝐧𝐞𝐰 𝐯𝐞𝐧𝐭𝐮𝐫𝐞𝐬? How I Can Help You Succeed: - Full-Service Development: From initial concept to fully functional apps, I handle the complete development of mobile and web applications with a focus on delivering tangible results. - UI/UX Expertise: I offer intuitive design, app branding, and product workshops to ensure your app is not only functional but also visually appealing and user-friendly. - Long-Term Support: I build scalable apps, maintain them, and provide ongoing support to adapt to your business needs as they grow. - Cloud Solutions: Seamless integration with cloud infrastructure for performance, scalability, and reliability. How I Can Apply My Experience to Help You: Thanks to the success of my past apps, I became an Implementation Partner of RevenueCat (revenuecat.com) in 2022—a leading platform processing over $5 billion annually and powering 30,000+ apps worldwide. This partnership allowed me to work on apps with thousands of users and significant revenue, equipping me with valuable insights. I’d love to share what I’ve learned with you. Growth Results: - Helped clients generate over $1.1M annually by integrating RevenueCat. - Grew a client’s app revenue to $280K/year using Stripe. Services - UI/UX design, product workshops, app branding - iOS and Android app development - Web app development: frontend and backend - Maintenance, new feature development Your success is my focus, not just for the initial project but for the long term. Next Steps: Invite me to your project or message me now to discuss your ideas further. I’m offering a FREE strategy consultation call, where you’ll receive: ☝ Expert feedback on your project from an app payments specialist. ✌ Practical advice on development and app growth strategies. ✋ A rough estimate of project costs and timelines. ★★★★★ “It's rare to find somebody with deep knowledge about development, UX design and marketing of mobile apps. Marcin took the time to answer all of my questions and address my concerns. Amazing consultation!” - Viktoriya M. (viktoriyamart) I’m happy to share my expertise and explore how we can collaborate effectively. Contact me today to get started!Android
SmartphoneJavaScriptNode.jsMobile App DevelopmentWeb ApplicationReactNestJSMobile AppReact NativeFirebaseiOSUser Profile CreationHybrid App Development - $40 hourly
- 4.9/5
- (3 jobs)
Results-oriented, organized, collaborative, and highly skilled iOS developer with 7+ years of experience and a great sense of responsibility. Highly experienced in building apps for iOS, iPadOS, tvOS, etc. I can be responsible for the entire development process, from the creation of the idea, creating a development strategy, product MVP development, and testing, all the way to the final release of the application on the App Store and further maintenance. On a wider scope, I have substantial experience in Android development, Web technologies, and DevOps. This makes me a very good team player, able to understand and collaborate well with other mobile developers as well as Backend and DevOps Engineers.Android
iPad App DevelopmenttvOSTabletMap IntegrationMobile App DevelopmentiOSApple XcodeiOS DevelopmentAndroid StudioRxSwiftSwiftJavaAndroid App DevelopmentKotlin - $25 hourly
- 5.0/5
- (56 jobs)
Head of Customer Service/Customer Service Manager. I provide service in the three languages I am proficient in: Portuguese (European - native), English (US/UK) and Spanish (Spain). I was previously a supervising agent and manager for my technical support customer service team and am an expert in email, chat and call handling; software, protocols and procedure creation implementation; employee training; logistics management; performance QA, and monitoring. My strong point would be undoubtedly my extremely high empathy with the people I interact with. I found this to be particularly useful within my team and with my customers. I also display extensive and intensive experience in several customer service and e-commerce platforms such as Zendesk, Gorgias, Shopify, Salesforce and Magento. In case technical medical any services of medical translation are needed, I have a 5-year degree in Radiology, Radiotherapy and Nuclear Medicine.Android
Customer ServiceEmployee TrainingCustomer SatisfactionManagement SkillsMagentoEmail SupportEnglishPortugueseTranslationZendesk - $17 hourly
- 5.0/5
- (1 job)
Rashad is an ambitious and energetic man who always strives for the best. He always communicates with the best in the field. In this context Rashad took more than 10 professional online courses in the field of website development and received certificates from leading organizations in this field such as Udacity, Udemy and Coursera. Rashad has the main skills to build websites like HTML, CSS and JavaScript. He also has the standard rules used to make the site interactive, responsive and accessible. Whatever your goal, he is able to accomplish the required professionally and mastery. Rashad is always seeking additional expertise and new relationships with new people. Satisfying the customer and giving him more than expected is my desire.Android
REST APIWeb Content Accessibility GuidelinesiOSReact NativeNext.jsMongoDBReactNode.jsResponsive DesignJavaScriptHTML5GitCSS 3 - $15 hourly
- 5.0/5
- (1 job)
I write, design and create Unity 3D Applications and Games for mobile, tablet or PC and Oculus Rift. I specialise in designing and coding complete multi user cross platform real-time applications / solutions that will work on a LAN or Online (using Mirror Unity Networking). I have several years of experience working with Unity and Android and have delivered professional applications and prototypes for both PC, Android and Oculus Rift.Android
Music ProductionVideo EditingPhoton Unity NetworkingGame DevelopmentPC GameAndroid App DevelopmentUnityC# - $25 hourly
- 4.9/5
- (8 jobs)
3D Art | Digital Sculpting and Animation: - 1 year self study experience as 3D Character Sculptor - Currently studying MA Computer Animation at Kingston University London - ZBrush, Maya, Animbot, Marvelous Designer (Intermediate) - Nuke, Mari, Substance (Beginner) Game Development: - 3 years professional experience as Unity3D Developer here at Upwork.com - Unity Game Engine, C# programming (Expert) - Unreal Engine, C++ programming (Beginner) - Gameplay, UI and Level Design programming - Multiple platform development (Android, iOS, Windows, WebGL) Other experiences: - Adobe Photoshop, Illustrator (Intermediate) - HTML, CSS, PHP (Intermediate) - MySQL, Laravel Lumen (Beginner)Android
WebGLDocumentationAndroid StudioDatabase IntegrationGame DevelopmentC#SmartphonePuzzleTabletMobile Game - $25 hourly
- 5.0/5
- (1 job)
Let’s get straight to the point—you’re looking for a developer who can take your app idea and turn it into something amazing. I’m here to do just that. With expertise in Flutter and a strong background in native development, I create apps that look great, perform flawlessly, and deliver real results. Whether it’s building from scratch or improving an existing app, I ensure the final product meets your goals and exceeds expectations. Now that I’ve got your interest, let’s dive into the details of what you’re getting when you work with me 👇: As an Expert Flutter Developer with extensive experience in native mobile development, I specialize in crafting high-performance, user-centric apps that seamlessly run on both Android and iOS platforms. My passion lies in delivering intuitive, visually striking, and technically robust solutions tailored to my clients' unique needs. What I Bring to the Table ✅ Full-Stack Mobile Expertise: Proficient in Flutter & Dart, I leverage cross-platform development to maximize efficiency, complemented by a solid foundation in native Android (Java/Kotlin) and iOS (Swift/Objective-C). ✅ Custom App Solutions: From sleek e-commerce platforms to dynamic real-time chat apps, I have the expertise to turn diverse business ideas into reality. ✅ Advanced Integrations: Skilled in integrating complex APIs, Firebase, payment gateways, maps, and other third-party services. ✅ Scalability & Optimization: I build apps designed to scale, ensuring top-notch performance with a focus on optimization and maintainability. My Process 1️⃣ Discovery & Planning: Understanding your vision, business goals, and technical needs. 2️⃣ Design & Development: Creating pixel-perfect, interactive interfaces paired with clean, modular, and efficient code. 3️⃣ Testing & Deployment: Rigorous QA to ensure a bug-free, seamless user experience. I assist with store submissions and ongoing support as needed. Technologies & Tools Flutter, Dart, Kotlin, Swift Firebase, REST APIs, GraphQL Git, Jira, Trello Adobe XD, Figma Why Work With Me? 🌟 Proven Results: I’ve helped clients achieve faster time-to-market with cost-efficient solutions while maintaining a high standard of quality. 🌟 Transparent Communication: I prioritize clear, consistent updates to ensure our collaboration is smooth and stress-free. 🌟 Client Success Focus: Your goals are my priority—whether it's driving engagement, enhancing functionality, or building a scalable MVP. Recent Projects 📱 E-Learning Platform: Delivered a cross-platform app with video streaming, live classes, and offline mode, increasing user engagement by 40%. 📱 E-Commerce App: Developed a seamless shopping experience with payment gateway integration, real-time inventory updates, and push notifications. 📱 Fitness Tracker: Built a gamified fitness app with activity tracking, social sharing features, and personalized dashboards. Let’s collaborate to bring your vision to life! Whether you need an MVP or a polished product, I’m here to deliver solutions that make an impact. 💡 Ready to start? Drop me a message to discuss your project today!Android
Social Media Account IntegrationUser AuthenticationMap IntegrationAndroid StudioiOS DevelopmentFirebaseiOSAndroid App DevelopmentFlutter - $20 hourly
- 4.9/5
- (10 jobs)
I am a dedicated designer with expertise in creating exceptional user experiences for mobile and web applications. My skills include: • UI/UX Design: Proficient in using Figma and Adobe Suite to create intuitive and engaging designs that enhance user satisfaction. • Web Development: Strong knowledge of HTML, CSS, and JavaScript, allowing me to turn designs into functional websites. • E-commerce Solutions: Experienced in customizing Shopify and WordPress sites to optimize performance and usability. I pride myself on clear communication and collaboration with teams to ensure projects run smoothly. My attention to detail and commitment to quality have earned me positive feedback from clients. Let’s work together to build something great that meets your needs!Android
Web DevelopmentWebsite RedesignWordPressEcommerceWeb DesignShopifyAPILaraveliOSMobile App DevelopmentFlutterFirebasePHP Want to browse more freelancers?
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