Hire the best App Development Freelancers in Lisbon, PT
Check out App Development Freelancers in Lisbon, PT with the skills you need for your next job.
- $60 hourly
- 5.0/5
- (38 jobs)
Hi, I’m Aleksandr. I’m a certified developer with over three years as a 100% Top-Rated Plus on Upwork and 40+ successful projects. I bring years of expertise and a results-driven approach to every project I take on. Here’s how we can work together: - Develop complex custom features, including AI agents and chat-bots - Designing and developing custom web, mobile, and AI apps - Creating user-friendly workflows, dashboards, and other tools - Resolving bugs and optimizing systems - Crafting scalable MVPs for new ideas or business models - Building and maintaining high-traffic production systems 💻 I’ve worked on everything from brief 30-hour assignments to long-term 15,000-hour for businesses that need precision and flexibility. Outside of development, my work has been recognized on different platforms. - Recognized as a "Top Developer" of 2024 by Clutch - Featured speaker on AI innovation at global conferences - "Top Asia Business Leaders" by TradeFlock in 2024 - "Trendsetter to Watch" at the Fueld Conference in 2024 - Committed to delivering quality and client success in every project 📩 Contact me today to discuss your project. My team and I look forward to collaborating with you.
App Development
UX & UIScrumIT Project ManagementProduct ResearchCustomer DiscoveryAgile Software DevelopmentProject AccountingProject TimelinesWireframingUX ResearchProduct DevelopmentProduct Design - $44 hourly
- 5.0/5
- (3 jobs)
🚀10+ years of experience in Web&Mobile Development. As a Senior Full-Stack Developer, I excel at rapidly integrating reliable web technologies and achieving flexible software architecture designs. I will help you protect the pulse of your business with exceptional software onboard. Inviting me, because of TOP-notch Tech Stack: 🖥 Front-End: JavaScript, React.js, React Native, Vue.js, Next.js, Nuxt,js ⌨️ Back-End: Python, Django, Flask, Sanic, Node.js, Express.js, Koa.js, Nest.js ⚙️ DevOps: AWS, GSP, Microsoft Azure, Docker, Docker Compose, Kubernetes, Ansible 💿 Database: MySQL, MongoDB, PostgreSQL, DynamoDB 📱UX/UI Design: Figma, Sketch, Adobe Creative Suite, Zeplin Works: 🌟𝐋𝐢𝐯𝐢𝐧𝐠 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 Is a Gamified Сybersecurity e-Learning Web Platform for 𝗙𝗼𝗿𝘁𝘂𝗻𝗲 𝟱𝟬𝟬 𝗖𝗼𝗺𝗽𝗮𝗻𝗶𝗲𝘀. 𝗦𝗲𝗿𝗶𝗲𝘀 𝗕 𝗙𝘂𝗻𝗱𝗶𝗻𝗴 𝘄𝗮𝘀 𝗰𝗼𝗹𝗹𝗲𝗰𝘁𝗲𝗱 thanks to 🔝 high product quality and user recognition. 𝟭𝗠+ 𝘂𝘀𝗲𝗿𝘀 are currently enrolled. 𝟭𝟬𝟬𝟬+ 𝘂𝘀𝗲𝗿𝘀 joined Living Security programs on the first day. 🌟𝐑𝐞𝐭𝐢𝐧𝐚 is a 𝙘𝙪𝙨𝙩𝙤𝙢𝙞𝙯𝙚𝙙 𝙎𝙖𝙖𝙎 𝙒𝙚𝙗 platform collecting retail tobacco licensing and enforcement data from state and local agencies for the Department of Justice. Was built specifically for 𝙩𝙝𝙚 𝘿𝙚𝙥𝙖𝙧𝙩𝙢𝙚𝙣𝙩 𝙤𝙛 𝙅𝙪𝙨𝙩𝙞𝙘𝙚 𝙞𝙣 𝘾𝙖𝙡𝙞𝙛𝙤𝙧𝙣𝙞𝙖 empowering communities to 𝙗𝙚𝙘𝙤𝙢𝙚 𝙝𝙚𝙖𝙡𝙩𝙝𝙞𝙚𝙧 𝙥𝙡𝙖𝙘𝙚𝙨 𝙗𝙮 𝙝𝙚𝙡𝙥𝙞𝙣𝙜 𝙥𝙪𝙗𝙡𝙞𝙘 𝙝𝙚𝙖𝙡𝙩𝙝 𝙥𝙧𝙖𝙘𝙩𝙞𝙩𝙞𝙤𝙣𝙚𝙧𝙨 and community members collect data on their local retailers, visualize disparities using maps, and mobilize for policy change. To future-proof your business, take a look at my portfolio as well and INVITE me right now! We will definitely find out the ways to Build the Software You Would Love.
App Development
Product DesigniOSAndroidNode.jsMobile AppWeb DevelopmentDjango StackJavaScriptReactPythonNext.jsDjangoReact NativeFlutter - $30 hourly
- 5.0/5
- (8 jobs)
Empower your business with cutting-edge data science, machine learning, and full stack development expertise. I bring a unique combination of skills that span from advanced data analysis to building robust, scalable web applications. My approach is holistic—transforming raw data into actionable insights and deploying those insights through powerful, user-friendly applications. With a strong foundation in Machine Learning, Deep Learning, Data Science, and Full Stack Development, I offer end-to-end solutions tailored to your specific needs. Whether you're looking to harness data for predictive analytics, develop sophisticated machine learning models, or build a full stack application that integrates seamlessly with your data pipelines, I’ve got you covered. Core Competencies: Machine Learning & Deep Learning: Expertise in designing, training, and deploying advanced ML models for predictive analytics, natural language processing (NLP), and image recognition. Data Science & Analytics: Skilled in extracting actionable insights from complex datasets, building predictive models, and performing statistical analysis to inform decision-making. Full Stack Development: Proficient in both backend and frontend technologies, delivering scalable and high-performance web applications that integrate with data systems. Web Scraping & Data Engineering: Experienced in automated data collection, ETL processes, and managing large-scale data pipelines for machine learning applications. API Development & Integration: Design and deploy RESTful APIs for seamless integration of machine learning models and data analytics into existing systems. Key Projects: Automotive Simulation Platform: Developed ML models to enhance safety and predictive maintenance by leveraging sensor and image data, integrated with a full stack traffic simulation platform. Financial Market Analysis Tool: Engineered a predictive analytics platform to forecast market trends, optimizing investment strategies through advanced machine learning algorithms. Healthcare Data Solutions: Built ML-driven clinical decision support systems and disease prediction models using electronic health records and wearable sensor data. E-commerce Recommendation Engine: Developed a recommendation engine to boost user engagement and sales, coupled with a full stack backend system for seamless e-commerce operations. Learning Management System (LMS): Created an LMS with data analytics features to track and enhance student performance, built with a full stack architecture for scalability. Technical Skills: Programming Languages: Python, C++, JavaScript (Node.js, React.js, Angular) Machine Learning Tools: TensorFlow, PyTorch, scikit-learn, XGBoost Data Science Tools: R, SQL, pandas, NumPy, Apache Spark Web Development Frameworks: Flask, Django, Express.js Databases: PostgreSQL, MongoDB, SQL, NoSQL Data Visualization: Matplotlib, Seaborn, Tableau, Power BI Cloud & DevOps: AWS, GCP, Azure, Docker, Kubernetes Web Scraping: BeautifulSoup, Scrapy, Selenium Experience: Machine Learning & Data Science: Extensive experience in developing and deploying machine learning models for predictive analytics, natural language processing, and data-driven decision support across various industries. Full Stack Development: Built and deployed full stack applications that integrate with complex data systems, providing users with intuitive interfaces and seamless data processing capabilities. Data Engineering & Web Scraping: Proficient in building data pipelines, ETL processes, and automated web scraping tools to gather and process large datasets for machine learning and analytics. Let’s Collaborate: Whether you're looking to unlock the potential of your data with machine learning, develop a data-driven application, or need a full stack solution that bridges the gap between data science and software development, I’m here to help. Let's turn your ideas into powerful, actionable solutions that drive success.
App Development
GolangDatabase DesignSoftware DevelopmentFull-Stack DevelopmentMongoDBNode.jsBootstrapMERN StackRustDatabase ManagementJavaScriptSQLMachine LearningC++PythonData Science - $25 hourly
- 4.6/5
- (3 jobs)
I'm a senior software engineer with 6+ years of experience working for big companies (Burberry), VC funded startups (Stylib, 1.7M funding) and in many international projects in UK, France, Austria and more Deep technical knowledge and useful interdisciplinary skills from marketing to business, having built businesses myself that generated 150k in sales 💼 What I Do ✅ AI Automation: Automate workflows and integrate powerful AI tools to save time and scale faster – Tools: n8n, Make (Integromat), Apify, GPT, Claude, Gemini, ElevenLabs, Midjourney, etc ✅ MVP Development: I build fast, scalable MVPs that impress investors and users – Stacks: React, Node.js, MongoDB, Gatsby, Next.js, JAMstack, React Native ✅ Full Product Development: From UX design to deployment – I deliver complete solutions – Web & Mobile: eCommerce, Marketplaces, SaaS, Social Platforms 🧠 Why Work With Me? ✅ Proven experience: Built projects generating over $150K in sales ✅ Great communicator: Fluent in English, transparent & responsive ✅ Versatile skillset: From product strategy to design to code ✅ Project leader: Managed cross-functional teams & taught over 200 students ✅ Startup-savvy: Understand business, deadlines, and ROI Let’s talk if you need: An MVP built in weeks, not months Your business processes automated using AI A reliable dev who gets both tech and business → Ready to start? Hit the invite button or send me a message.
App Development
SassAI Agent DevelopmentAutomationMake.comn8nTypeScriptMongoDBGatsby.jsReact NativeNext.jsFront-End DevelopmentReactJavaScriptAPI IntegrationNode.js - $60 hourly
- 0.0/5
- (0 jobs)
I am a HubSpot expert with over 6 years experience working directly within HubSpot and as an external HubSpot consultant. I work with businesses of all sizes and across all industries to help them get the most value out of the HubSpot tools they are paying for and reduce the their costs outside of HubSpot too. My service offerings include: - Team training and education - HubSpot implementation - HubSpot consulting + optimisation - Custom CMS migration - Custom apps and integrations - Data cleansing - Assisted HubSpot purchasing. Get only the tools you need for the best possible price. Let me know how I can help you :)
App Development
Database ManagementTraining & DevelopmentCustomer Service ChatbotInternal ReportingAPI IntegrationAPIMarketing AnalyticsService DesignSales EnablementMarketing AutomationData CleaningCMS DevelopmentHubbleHubSpot - $35 hourly
- 0.0/5
- (0 jobs)
I specialize in crafting high-performance, user-centric web applications. With expertise in React, Next.js, and GraphQL, I build scalable and maintainable frontend solutions. My proficiency in WordPress development allows me to seamlessly integrate dynamic content management systems into modern web architectures. From initial concept to deployment, I manage projects end-to-end, ensuring responsive design, accessibility, and optimal performance across devices. I value transparent communication and am committed to keeping stakeholders informed throughout the development process. Whether you're aiming to launch a new product, enhance your online presence, or develop a custom web solution, I'm here to help bring your vision to life.
App Development
HTML5CSS 3Next.jsGraphQLWordPressReactWeb ApplicationWeb Development - $80 hourly
- 0.0/5
- (0 jobs)
I’m a Full-Stack Software Developer with 15+ years of experience ✅ Passionate about writing clean, maintainable code ✅ Experienced with multiple languages and frameworks ✅ Built large-scale applications serving millions of users
App Development
MongoDBMySQLPostgreSQLFlutterReact NativeNode.jsNext.jsFastAPIReactWeb DevelopmentAndroid App DevelopmentiOS DevelopmentWeb ApplicationArtificial Intelligence - $60 hourly
- 4.1/5
- (9 jobs)
🏆 Leading Web & No-Code Developer 🏆 Trusted by Industry Pioneers ✅ Quick Response Times ✅ Comprehensive Service from Design to Launch Hello! 👋 I’m your go-to expert in Web and No-Code Development, dedicated to turning your ideas into powerful, high-performing solutions that deliver real-world results. 🔍 My Value Proposition: - Your Ideas, Perfected: I’m passionate about transforming your concepts into fully-functional, scalable products that exceed expectations. - Results-Focused Development: Every aspect of the build is optimized to enhance user engagement and achieve your business objectives. - Custom Solutions for Growth: Leveraging a deep understanding of market needs, I create tailored applications that resonate with users and drive business expansion. 📈 Achievements: - Demonstrated Success: My work has helped clients secure significant funding and generate impressive revenue through innovative no-code solutions. - Revenue Impact: Crafted no-code applications that have consistently driven high revenue returns. - Reliable Delivery: I maintain a 95% on-time project completion rate, ensuring your goals are met on schedule. 🔧 Expertise Includes: - Strategic Design: Ensuring that every feature aligns with your business strategy and user needs. - Solid Architecture: Building secure, scalable systems designed for long-term growth. - Flawless Integrations: Skilled at incorporating third-party APIs to extend your platform’s capabilities. - Intuitive Interfaces: Designing user-friendly interfaces that enhance the overall experience. - Ongoing Support: Providing full-cycle support from initial concept through to post-launch. 💼 Platforms and Tools I Specialize In: - No-Code & Web Development: Bubble.io, Flutterflow, Webflow - Backend & Databases: Airtable, Firebase, Xano - Automation & APIs: Integromat (Make), Zapier, custom API integrations - Design Tools: Figma, Adobe XD - Payment Systems: Stripe, PayPal, Plaid - Communication: Twilio, SendGrid - Cloud & Deployment: AWS, Google Cloud, Docker, Kubernetes 💬 Ready to Elevate Your Project? Let’s discuss how I can bring your vision to life with cutting-edge web and no-code solutions. Your success is my commitment!
App Development
Web ApplicationMobile App DevelopmentBooking Management SystemSocial Media PluginPythonJavaScriptWeb Application DevelopmentAirtableBubble.ioAutomationAI App DevelopmentAI Agent DevelopmentCustomer Relationship ManagementMessaging SystemCRM SoftwareProduct AnalyticsZapierProduct Management - $10 hourly
- 0.0/5
- (0 jobs)
I am a seasoned Full Stack Developer with over 9 years of experience in building robust web applications. My expertise spans both front-end and back-end technologies, enabling me to deliver comprehensive solutions tailored to your needs. I am proficient in modern frameworks and tools, ensuring high performance, scalability, and seamless user experiences. Skills: Front-End: React, Angular, Vue.js, HTML5, CSS3, JavaScript, TypeScript Back-End: Node.js, Express.js, Django, Ruby on Rails, PHP, Laravel Databases: MongoDB, MySQL, PostgreSQL, Firebase Cloud Services: AWS, Azure, Google Cloud Platform, Heroku DevOps: Docker, Kubernetes, Jenkins, Git, CI/CD pipelines Other Technologies: RESTful APIs, GraphQL, WebSockets, Microservices, Serverless Architecture
App Development
LaravelCI/CDKubernetesDockerAzure DevOpsAWS Cloud9PostgreSQLMySQLAngularVue.jsMongoDBNode.jsReactSoftware Architecture - $40 hourly
- 0.0/5
- (0 jobs)
AI Engineer with expertise in designing and developing advanced AI-driven solutions using AI Agents, specializing in automation, chatbots, and systems leveraging LLMs, APIs, and machine learning. Proven ability to build scalable workflows and intelligent agents for customer support, streamlining processes and reducing operational costs.
App Development
SQLDashboardData AnalysisWeb DevelopmentPython - $17 hourly
- 0.0/5
- (0 jobs)
I’m a passionate Full-Stack Web Developer with experience in building dynamic, scalable, and user-friendly web applications. I specialize in developing modern websites that are optimized for performance, security, and user experience. What I specialize in: - Custom Website Development - Clean, efficient, and maintainable code using HTML, CSS, JavaScript, React, and Tailwind CSS - Backend Development - Secure and scalable backend solutions using Node.js, Django, and SQL/MongoDB databases - eCommerce & CMS Development – Shopify, WordPress, WooCommerce, and Webflow My experience and approach: I have built multiple web applications, both independently and in teams, enhancing my ability to collaborate, problem-solve, and implement scalable solutions. - Detail-Oriented & Efficient – I prioritize clean, well-structured, and scalable code - Clear Communication – Regular updates and discussions to keep your project on track - Client-Focused Approach – I tailor solutions to match your business needs and long-term goals - Continuous Learning & Improvement – Staying up to date with the latest industry trends and best practices I will help you bring your Web Project to life! Feel free to reach out and let's discuss how I can help :)
App Development
ShopifyCommunicationsProblem SolvingAndroid App DevelopmentNodeJS FrameworkPythonCybersecurity ManagementDatabaseJavaScriptCSSHTMLWeb ApplicationDesktop ApplicationWeb Development - $22 hourly
- 0.0/5
- (0 jobs)
I'm a Senior Software Engineer with 8+ years of experience architecting and delivering high-throughput, mission-critical web and microservice systems. I specialize in PHP frameworks (Laravel, Symfony, Lumen), API design (REST, gRPC), and event-driven architectures using RabbitMQ and Redis. My deep expertise in relational (MySQL, PostgreSQL) and NoSQL (MongoDB) databases, combined with containerized deployments (Docker, AWS), has enabled me to: Boost system performance by 40% through query optimizations and horizontal scaling Reduce end-to-end release cycles by 30% with CI/CD pipelines and Infrastructure as Code Drive reliability to 99.99% uptime via proactive monitoring (Grafana, Telescope) and disciplined testing I thrive in collaborative teams, mentoring junior engineers and translating complex requirements into elegant, maintainable solutions.
App Development
Web DevelopmentProduct DevelopmentAndroid App DevelopmentiOS DevelopmentWeb Application - $30 hourly
- 0.0/5
- (0 jobs)
Professional Summary Full Stack Developer with 3+ years of experience in web application development, working in fast-paced tech companies across Portugal. Skilled in JavaScript, React.js, Node.js, and database systems. Known for building scalable and user-centric applications. Legally residing in Portugal and open to new opportunities in both remote and on-site environments.
App Development
International DevelopmentSpecificationsAndroid App DevelopmentiOS DevelopmentWeb ApplicationWeb Development - $15 hourly
- 0.0/5
- (0 jobs)
I am a programmer specialized in OutSystems, with proven experience in developing low-code solutions in several projects and for several clients, from different sectors. I have contributed to the creation of robust, scalable applications that are aligned with business needs.
App Development
App DesignWeb ApplicationWeb DevelopmentDesktop Application - $5 hourly
- 0.0/5
- (0 jobs)
Im A website developer Who works with databases, i also am an app developer currently working on New projects
App Development
Android App DevelopmentWeb DevelopmentWeb ApplicationSmartphone - $15 hourly
- 0.0/5
- (0 jobs)
About Me: I’m a developer experienced in building modern, responsive websites and applications for businesses and creators. Whether you’re looking to create a stunning website, launch an online store, or develop a cutting-edge web app, I can help bring your vision to life. What I Do Best: - Build dynamic, user-friendly interfaces using React, Vue, TypeScript, Tailwind, HTML, and CSS. - Leverage AI tools like ChatGPT and Cursor AI to streamline development and enhance functionality. . My Approach: - Full project management from start to finish. - Regular communication to ensure your vision is realized every step of the way. Let’s work together to create something amazing! 🚀
App Development
Website BuilderEmail AutomationResponsive DesignUX & UISmartphoneInternational DevelopmentWeb DevelopmentWeb Application - $10 hourly
- 0.0/5
- (0 jobs)
I'm an Android developer experienced in building Android applications for small and big size companies. - Add new features or fix bugs. - Full project management from start to finish
App Development
Mobile AppMobile App DevelopmentAndroid App DevelopmentKotlinJavaAndroidAndroid App Want to browse more freelancers?
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