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Hire the best Firebase Developers in Lithuania

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  • $35 hourly
    • 5.0/5
    • (20 jobs)
    Result oriented with repeated success in guiding IT projects from start to finish, managing technical support operations and introducing new technologies to promote operational efficiency. I specialise in providing custom and cross platform solutions using cutting edge technologies as I have broad knowledge as a developer - starting from wordpress, shopify up to a blockchain and enterprise applications.
    Featured Skill Firebase
    JavaScript
    PHP
    WordPress
    HTML5
    CSS 3
    AngularJS
    Laravel
    jQuery
    Shopify
    Vue.js
  • $30 hourly
    • 4.6/5
    • (9 jobs)
    I'm a Mobile Engineer with 5 years of experience specializing in Apple platforms. Proficient in Swift, SwiftUI, UIKit, AppKit. I've developed diverse apps across finance, social networking, education, entertainment, and more. 🚀 Turning your ideas into cutting-edge apps with a fusion of quality and speed. I'm a team player, passionate about discovering new tools and technologies, sharing my experience, and playing with ML and Vision. ⭐️ Key responsibilities: • Crafting robust apps from concept to deployment for iOS, iPad, MacOS • Enhancing performance and functionality • Seamlessly integrating APIs and SDKs • Navigating App Store submissions • Leading development teams, mentoring iOS devs ⭐️ Stack: • Swift, Objective-C • SwiftUI, UIKit, AWS, Firebase, Combine, RxSwift, Concurrency, ARKit, CoreML, Vision, WidgetKit, CI/CD • Core Data, SwiftData, Realm ☝️My skills extend beyond iOS – hands-on experience in Flutter, Kotlin, React Native, Java, C, JavaScript, and more. Let's team up to bring your app vision to life!
    Featured Skill Firebase
    SwiftUI
    React Native
    Flutter
    Objective-C
    UIKit
    iOS Development
    iOS
    Mobile App Development
    AWS Amplify
    ARKit
    GraphQL
    Swift
    Core ML
    SceneKit
  • $34 hourly
    • 4.8/5
    • (4 jobs)
    🤝 My goal is to help you bring your projects to life, whether starting from scratch or enhancing existing applications. I've successfully worked on a wide range of projects, delivering exceptional results that meet and often exceed client expectations. Whether it's a complex web application or a simple website, I bring the same level of dedication and expertise to every project. Why Choose Me? 🟢 I have hands-on experience in building projects from scratch as well as maintaining and enhancing existing ones. No matter the stage of your project, I'm here to help it succeed. 🟢 Need someone who can work with your schedule? I'm flexible with any time zones 🟢 Your success is my top priority. I love tackling challenges and finding innovative solutions to meet your project's needs. 🟢 I believe in building great working relationships. My approach is professional yet friendly, making collaboration enjoyable and productive. 🦾 Key Skills: Front-end: JavaScript, TypeScript, React, ReactQuery, Redux, Redux Toolkit, Bootstrap, npm, Three.js, Phaser, Zustand, CSS3 (Sass), HTML5 (Flexbox, Grid), React Native, Vue (courses and pet project) Design: Figma, Semantic UI, pixel-perfect, Storybook, Material UI, Radx UI, Tailwind, CSS Modules, Styled-Components Back-end: Next.js, Node.js, Express, Socket.io, Python, Flask Databases: MySQL, Firebase, MongoDB, DynamoDB Methodologies and tools: git (GitHub), GitLab Cloud: Amazon Web Services (Lambda) Hosting: Vercel, GitHub pages, Heroku, Netlify, Railway CMS: Sanity 🤙 Let's Work Together!
    Featured Skill Firebase
    Klaviyo
    GitLab
    AWS Lambda
    REST API
    Vercel
    Socket.io
    Sanity Testing
    Git
    PostgreSQL
    TypeScript
    NestJS
    Node.js
    Next.js
    React
  • $50 hourly
    • 5.0/5
    • (4 jobs)
    🤝 I excel at delivering innovative technology solutions for a wide range of industries, including fintech, e-commerce and real estate. My goal is help you bring your project to life. My expertise includes designing and implementing custom software solutions that meet complex business requirements, integrating with third-party systems, and managing data architecture. In addition to my technical expertise, I specialize in front-end technologies, with a particular focus on React. I’m skilled at developing intuitive and engaging user interfaces that enhance the user experience and drive customer satisfaction. 💪 Key skills: Front-end: JavaScript, TypeScript, React, ReactQuery, Redux, Redux Toolkit, Bootstrap, npm, Tailwind CSS, GraphQL, DaisyUI, SolidJS, UnoCSS, Zustand, Phaser, CSS3 (Sass), HTML5 (Flexbox, Grid). Design: Figma, Semantic UI, pixel-perfect, Storybook, Material UI, Radx UI, Tailwind, CSS Modules, Styled-Components Back-end: Next.js, Node.js, Express, Socket.io DevOps tools: Docker, AWS (EC2, RDS, API Gateway, Lambda, DynamoDB, SQS, CloudFront) Databases: PostgreSQL, MySQL, Firebase Blockchain development: Wagmi, Viem (Ethers, Web3.js), Solidity, Truffle Framework 🤙 Let's Work Together!
    Featured Skill Firebase
    Front-End Development
    Tailwind CSS
    Django
    Python
    Full-Stack Development
    Redux
    GraphQL
    Docker
    Next.js
    TypeScript
    React
  • $40 hourly
    • 5.0/5
    • (7 jobs)
    MIMINUM ENGAGEMENT - 1 Month MINIMUM BUDGET - $5000 Only serious projects with established companies & startups 🌟 10 years of proven mobile app expertise 🌟 As a skilled Swift Developer, I specialize in iOS development, creating innovative and high-performance iOS apps. With a strong foundation in Swift, SwiftUI, UIKit, and Objective-C, I build visually stunning and user-friendly interfaces. 🌟 I don't sell hours - I guarantee results 🌟 Successful apps released to AppStore and Google Play I'm a passionate full-stack mobile app developer with over 8 years of experience crafting high-performance iOS and Android applications. My expertise spans Swift, Objective-C, Kotlin, Flutter, and React Native, allowing me to build native and cross-platform apps that power millions of devices worldwide. As a skilled Android developer and Flutter developer, I’ve developed and optimized 50+ mobile applications, specializing in mobile app development that delivers seamless user experiences focused on speed, security, and scalability. My work with Kotlin Multiplatform has reduced development time by 40%, enabling businesses to ship faster and more efficiently. I have extensive experience in iOS development, working with Swift, Objective-C, SwiftUI, UIKit, and Apple Xcode to create smooth, high-performance applications. My attention to iOS design ensures clean UI patterns and natural navigation. On the Android side, I build native apps using Kotlin and Java, running seamlessly across devices. I also leverage React Native and Flutter to create cross-platform mobile apps, with several apps exceeding 500K+ downloads globally. On the backend, I work with Node.js and JavaScript, building scalable APIs and cloud-powered services. I also collaborate with PHP developers when needed to integrate legacy systems or manage backend CMS-driven applications. My work spans industries—from e-commerce to education. I’ve built scalable platforms including dating apps with real-time messaging and user matching, and tutoring apps with scheduling, video chat, and progress tracking, all optimized for growth and engagement. Beyond development, I specialize in mobile UI/UX design. With expertise in Material Design, widget customization, and lifecycle management, I’ve improved user engagement by 60%, delivering apps that feel natural and responsive. I’ve integrated Google Maps and MapBox for geolocation features used by millions, and implemented monetization strategies that have driven over $1M+ in app-based transactions. Using Firebase and AWS, I develop secure, real-time apps with 99.9% uptime, supporting features like push notifications, authentication, analytics, and cloud sync. Whether building AI-powered tools, IoT-connected mobile solutions, or enterprise-scale apps, I ensure performance, security, and maintainability come first. With a mobile-first mindset, I build solutions that work beautifully across iOS, Android, and the web—helping startups and enterprises scale confidently in a competitive market.
    Featured Skill Firebase
    SwiftUI
    PHP
    Node.js
    React Native
    Kotlin
    JavaScript
    Java
    Apple Xcode
    Android App Development
    Mobile App Development
    Objective-C
    iOS Development
    iOS
    Swift
  • $35 hourly
    • 5.0/5
    • (9 jobs)
    Native Android app developer with more than 4 years of enterprise level experience, bringing the greatest ideas to life. I will see through my client idea/request, evaluate the best approach and get back with a suggested solution. During my 4 years of working with apps that had more than 4 million daily active users, I acquire a lot of UX/UI knowledge and generally I am able to identify bad design if I see one. You can count on me to identifying pain points in your ideas and suggesting you on how to make it better. So, I will definitely help you: To create a native Android app from scratch Fix bugs (down to a root cause) Redesign your app Migrate your iOS app to Android For smaller scale projects I can also deliver cross platform solutions for both iOS and Android by using a framework, such as Flutter
    Featured Skill Firebase
    XML
    Android SDK
    Mobile App Development
    Payment Functionality
    Camera
    Android
    Kotlin
    Flutter
    Java
    Dart
    Hybrid App Development
  • $50 hourly
    • 5.0/5
    • (28 jobs)
    Transforming requirements into products in a clear and rapid manner. Developing software since 2013, I have accumulated an extensive set of skills. With professional experience in the industry and numerous projects on and beyond Upwork, as well as getting awards in 20+ hackathons across Europe and running a startup myself, I understand the importance of teamwork, task distribution, mutual respect, and continuous on-time product delivery. Tech stack: ~~~ ChatGPT ~~~ | Languages: Swift, Objective-C, Python, JavaScript, HTML+CSS, Java, C, C#, Bash; | Libraries: Tensorflow, Alamofire, OpenCV, NumPy, matplotlib, OneSignal; | IDEs: Xcode, Android Studio, PyCharm, Webstorm, IntelliJ, Unity, Visual Studio; | Databases: Firestore, Firebase RTDB, SQLite, PHPMyAdmin, PostgreSQL; | Integrations: Twilio, Firebase, Branch, Facebook SDK, Zapier, Mailchimp; | Graphics/rendering tools: Adobe Photoshop, Sketch, Zeplin, three.js; | Frameworks: React, React Native, Express.js, Django, Flask; | Issue/version tracking: Trello, Jira, GitHub, Bitbucket; | CSS rendering: less/sass, styled components; | Analytics: Firebase Analytics, Mixpanel; | UI Frameworks: Semantic UI, Antd; | Run-time environments: Node.js; | Cloud Services: AWS, CloudKit; | OS: Linux, MacOS, Windows; | Mapping platforms: Mapbox; | Dependencies: CocoaPods; | CMS: WordPress. I specialize in creating robust and scalable solutions, ensuring transparency and responsibility throughout the development process. By leveraging my skills, I aim to deliver high-quality products that meet client needs efficiently and effectively.
    Featured Skill Firebase
    styled-components
    React Native
    Mapbox
    Swift
    API Development
    CSS 3
    React
    Next.js
    JavaScript
    Three.js
    HTML5
    Python
    Google Cloud Platform
    Node.js
  • $100 hourly
    • 5.0/5
    • (9 jobs)
    "Zilvinas is very professional. It was easy to work and communicate with him. He finished the project on time and delivered more than I have expected." As a Full-stack Software Engineer and System architect with over 15 years of experience, I have developed complex solutions for Banks, Power Plants, Utilities, Governments, and Startups, including Fortune 500 companies such as NEC Corporation and Rolls-Royce. I bring a wealth of expertise to every project I work on. My specialty lies in building complex full-stack solutions, starting from system architecture, continuing to database design, business logic, and all the way to the frontend. Throughout the process, I ensure optimization, performance tuning, and seamless integration of third-party systems to deliver exceptional software development solutions for my clients. Here are the services I offer: ✅ Software Architecture and Design ✅ Backend (server-side) development (.NET, NodeJS, NestJS) ✅ IoT systems development (AWS IoT, Azure IoT Hub, Custom solutions) ✅ iOS and Android development (Swift, Kotlin) ✅ Agile Software Project Management ✅ Tech Startup Consulting (remote CTO) When you choose to work with me, you can expect: ✅ The delivery of what I promise, and more ✅ My unwavering commitment to your business needs, delivering solutions that are the best fit for your organization ✅ Open communication channels and 24/7 availability Here's what one of my clients had to say about my work: "Zilvinas has profound technical knowledge and organizational skills. He has what it takes to make a wonderful project leader." - Aaron Iva. If you're ready to bring my expertise to your project, here's how we can get started: 1️⃣ Click the green "Invite" button in the upper-right corner of this page to invite me to your job. 2️⃣ I'll jump on Zoom with you to discuss all the details of your project. Let's work together to take your business to the next level. Invite me to your job, and let's get started!
    Featured Skill Firebase
    NestJS
    Scrum
    MQTT
    PostgreSQL
    TypeScript
    MongoDB
    Node.js
    Swift
    Internet of Things
    AWS IoT Core
    .NET Framework
    Project Management
  • $45 hourly
    • 5.0/5
    • (4 jobs)
    I am a generalist Web Developer - I build everything from static homepages, to highly complex dynamic applications. I focus on user experience above everything else, while making sure that my code is scalable, maintainable and easy to understand for other developers. I stay on top of latest best practices, making sure that code I write is up to date to modern standards. My extensive experience in industry, as well as formal education enables me to understand the problem on all levels - from marketing and design to low level programming. I believe I bring great value to any company I work at, by having good foundational knowledge of modern computer software. My specialisation includes, but not limited to: Next.js, TypeScript, React, Tailwind CSS, PostgreSQL, MySQL, MongoDB, Prisma, Kysely, T3 Stack, TRPC, GraphQL, REST, OpenAPI, Schema.org, Remix, Astro, Svelte, HTML, CSS, JS, Git, Vercel, Web Vitals, SEO, + any CMS there is (I even built my own CMS too).
    Featured Skill Firebase
    Svelte
    GraphQL
    React
    Three.js
    ExpressJS
    SQL
    Redux
    PostgreSQL
    MongoDB
    Node.js
    Next.js
    JavaScript
    webpack
    TypeScript
  • $30 hourly
    • 5.0/5
    • (5 jobs)
    I am very well-organized and diligent worker, able to create big or small projects, depending on your needs. Every product I make must be multi functional, perspective orientated and easy updatable. I will make everything you need for the best price and with top quality ! Don't hesitate to contact me.
    Featured Skill Firebase
    Spring Boot
    Hibernate
    Redux
    Flutter
    Angular
    Kotlin
    JavaScript
    React
    Swift
    HTML5
    Java
  • $35 hourly
    • 5.0/5
    • (5 jobs)
    I'm an iOS developer of 5+ years, and for 3 of them, I work as a freelancer. I'm able to work in teams and as a solo developer. If clients need I can be autonomous and work with minimal input while reporting my daily progress. I'm flexible, and I try my best to make clients happy. Today, my preferred tech stack is: Swift SwiftUI Realm/Core Data Firebase/Supabase MV pattern But I have enough experience working with all primary iOS technology. For Example: UIKit Any REST API MapKit MVVM, MVC, TCA patterns I try to be transparent and will not hide if I don't know something. But learning new things existing to me and not knowing how to use some tech was never a problem. In my free time, I create my own apps. You can find them in the portfolio section. These projects are solo endeavors, showcasing my skills in design and UX. They also keep me updated on the latest Apple technologies. Feel free to reach out if you think I'd be a good fit for your project. I'm always open to new opportunities and challenges.
    Featured Skill Firebase
    SwiftUI
    Supabase
    Figma
    Apple Xcode
    RESTful Architecture
    iOS
    iPadOS
    Swift
    UIKit
    Objective-C
  • $100 hourly
    • 0.0/5
    • (0 jobs)
    Senior Full Stack Developer with over 6 years of experience delivering web applications, prototypes, and proof-ofconcept (PoC) solutions. Adept at React, TypeScript, Next.js, and other modern front-end technologies. Demonstrated success in rapid prototyping, iterative development, and collaborating with cross-functional teams. Proven track record in remote contract positions, driving innovation in startup, agency, and enterprise environments.
    Featured Skill Firebase
    Jest
    Apollo.io
    Next.js
    MongoDB
    Gatsby.js
    JavaScript
    GraphQL
    React
    Node.js
  • $40 hourly
    • 0.0/5
    • (1 job)
    I’m a senior full-stack developer 10+ experienced in building modern, responsive websites and web applications using Next.js, Vue, Angular, Node, Django, Laravel, and Firebase, PostgreSQL. Whether you’re looking to create a stunning business website, build a scalable web app, or enhance your existing platform with a sleek and user-friendly interface, and Automation workkflow and development AI Agent, I can help. Next.js | Vue | Angular | Node | python| PHP | Tailwind CSS | shadcn | v0.dev | AI Agent development
    Featured Skill Firebase
    PostgreSQL
    PHP
    Python
    Vercel
    AI Agent Development
    Tailwind CSS
    Laravel
    Flask
    Node.js
    Vue.js
    Next.js
    React
  • $15 hourly
    • 5.0/5
    • (5 jobs)
    Currently I offer my services quite cheap to increase reputation, so feel free to hit me up for short-term gigs or maintenance of some projects. Experience: - Android Development - Kotlin - CI/CD
    Featured Skill Firebase
    Model View ViewModel
    Git
    Android SDK
    Android
    Android App Development
    Java
    Mobile App Development
    Scrum
    RESTful Architecture
    Kotlin
  • $20 hourly
    • 0.0/5
    • (1 job)
    I specialize in automating repetitive computer tasks to save you time and effort. What I Offer: - Custom solutions to automate workflows, manage data, and optimize your systems. - Expertise in powerful tools such as Make.com and Airtable. - Integration of services with APIs into Make.com for seamless automation. - Live consultations. - Support for both ongoing projects and one-time jobs - whatever suits your needs. How I Can Help: -Need guidance with your current Make.com projects? I’ve got you covered. -Want an automation built from scratch? I’m here to make it happen. Why Work With Me? - I prioritize streamlining processes and reducing manual effort so you can focus on what matters most. - I have 2 years of experience in automation and workflow optimization. - Flexible project options: Whether it’s a long-term collaboration or a one-time job, I’m open to it all. - Negotiable pricing tailored to your specific requirements. Let me handle the tedious tasks so you can focus on what really matters!
    Featured Skill Firebase
    Google APIs
    Adalo
    WooCommerce
    ChatGPT
    API
    Airtable
    Make.com
    Zendesk
  • $50 hourly
    • 3.2/5
    • (3 jobs)
    As a skilled and experienced iOS app developer, I have a strong understanding of the Swift programming language and a passion for creating user-friendly and visually appealing apps. With a track record of successfully designing and implementing multiple app projects, I am confident in my ability to develop high-quality iOS apps that meet the needs and requirements of my clients. In addition to my technical skills, I am a creative and innovative thinker with a strong attention to detail. I am a team player and enjoy working collaboratively with others to achieve a common goal. I am also committed to staying up-to-date with the latest advancements in app development and am always eager to learn and improve my skills. Whether you are looking to create a new app from scratch or improve an existing one, I am ready to support you in achieving your goals. I am confident that my skills and experience make me an excellent candidate for any iOS app development project.
    Featured Skill Firebase
    API
    Google APIs
    macOS
    Reactive Programming
    RxSwift
    iOS Development
    iOS
    Swift
  • $40 hourly
    • 0.0/5
    • (0 jobs)
    What do you want? I am ready for you. My name is Matas. I have 6+ years of experience in blockchain engineering and deep knowledge in this side. I have studied it for 6 years and developed it for more than 4 years. I'm so familiar with Ethereum blockchain and I'm particularly good at Smart Contract, Solidity, NFT, Dapp, and Defi. Also, I have rich experience in front-end engineering. React & Vue.js is my favorite front-end skill. I can handle any type of project with my skills. Here are my skills - Solidity | Rust | Golang | web3.js | web3.py | Solana - Smart Contract | NFT | Dapp | Defi | DEX | Staking pool | Yield Farming | Exchange | Bot | Hyperledger | Bridge | Roadmap | Whitepaper | Fork - Ethereum | BSC | Polygon | Tron - ICO | IDO | DAO -React \ Next.js \ Redux | Redux saga | Redux Thunk -Vue.js \ Vuetify \ Vuex \ Nuxt.js -HTML \ CSS \ Typescript \ Javascript -D3.js \ Backbone.js -GraphQL \ Apollo -Node.js \ Laravel \ PHP -Python \ Django -MySQL \ PostgreSQL \ Firebase \ Mongodb \ MariaDB -Nginx \ Git I work full time as a freelancer, enjoy long-term projects, and guarantee attention to detail and respect for deadlines. Are you looking for someone who will get all your things done perfectly? You have found me. I am looking forward to working with your exciting projects. Best Regards
    Featured Skill Firebase
    NFT
    Angular
    Laravel
    Decentralized Exchange
    web3.js
    Ethereum
    Blockchain
    Smart Contract
    Solana
    Bot Development
    React
    Golang
    Rust
    Solidity
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