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4.7/5
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  • $70 hourly
    • 5.0/5
    • (15 jobs)
    Experienced Full Stack Front End oriented Web Developer, with proficiencies in React, React Native, NodeJS, Angular2+, ASP.NET (Core, MVC). Experienced with Team & Project management. I know how to build a robust app, can propose different approaches depending on requirements and time constraints, and distribute the work among team members based on their professional and personal qualities. I've worked with enterprise level web apps my whole career, and I know how to build a good reliable front-end application. I'm always very involved in the process, asking questions and trying to come up with good functional and UX solutions for business problems. I love programming, and I'm always trying to do the best I can. One of my strongest skills is to be able to understand a problem quickly and come up with possible solutions. I'm also very good and learning new technologies, and I've never came across a problem I couldn't solve.
    Featured Skill TypeScript
    ASP.NET Core
    React Native
    Angular
    ASP.NET
    JavaScript
    Team Building
    React
  • $78 hourly
    • 4.9/5
    • (19 jobs)
    I have more than 10 years experience in software development with a lot of successfully completed projects in my portfolio. I'm working with different technologies frontend side: AngularJS, Angular 2+, Vue.js, Backbone.js, also on backend side: NodeJS, Express / HAPI, Laravel 5, Symfony 2/3. Having knowledge with design patterns, architecture big data, organization git repo. Iโ€™m a very friendly and active person, self-motivated, have experience in team leading and good communication. Have a Master's degree in Computer Science, so development is my life. Contact me for any questions.
    Featured Skill TypeScript
    React Native
    HTML
    RxJS
    Sass
    ExpressJS
    AngularJS
    Vue.js
    Node.js
    CSS 3
    HTML5
    React
  • $35 hourly
    • 5.0/5
    • (15 jobs)
    Hi, my name is Jozef and I have been working as a software engineer for 20 years, developing and maintaining various applications and systems for different domains and platforms. โšก Programming Languages โšก JavaScript, TypeScript, C#, SQL, HTML, CSS, SASS โšก Application Frameworks โšก Angular, React, Next.js, Gatsby, Node.js, .NET, ASP.NET, Entity Framework โšก CSS, SCSS Frameworks โšก Tailwind CSS, Bootstrap, Ionic, Angular Material, Chakra UI โšก Mobile Frameworks โšก React Native, Apache Cordova, Capacitor by Ionic โšก Testing Frameworks โšก Playwright, Jest, Karma, Jasmine, Vitest โšก Databases โšก MongoDB, MySQL, Microsoft SQL Server, Oracle, SQLite โšก Cloud Platforms โšก Firebase, Google Cloud Platform, Microsoft Azure, Amazon Web Service โšก DevOps โšก Git, GitHub, GitLab, Bitbucket, Docker, Kubernetes, OpenShift, TeamCity, Jenkins, Nexus, IIS, Nginx, PowerShell I will do whatever it takes to complete your project and earn 5-star rating from you.
    Featured Skill TypeScript
    MongoDB
    ASP.NET
    Firebase
    Microsoft Azure
    C#
    React
    SQL
    CSS
    .NET Framework
    Angular
    Entity Framework
    HTML
    Node.js
    JavaScript
  • $65 hourly
    • 5.0/5
    • (4 jobs)
    Hi, I am a freelance react-native developer with 5 years of experience in the field of mobile development. Throughout my career I've been involved in the creation of mobile applications of any kind, from small MVP projects for start-ups to complex internal and external tools and platforms for big enterprise companies. I believe that well written and documented code is the foundation of any successful software project.
    Featured Skill TypeScript
    Redux
    Apple Xcode
    GraphQL
    Android
    Firebase
    JavaScript
    iOS
    React Native
    Android Studio
  • $80 hourly
    • 5.0/5
    • (7 jobs)
    ๐Ÿ‘‹ I'm a Senior Full Stack Web developer with 10 years of experience. Over the last 4 years I delivered high quality products working via the Toptal platform. I've been working on 10+ projects during my career using multiple technologies. It allows me to solve a wide range of problems, I can create custom and complex projects from scratch, making right architecture decisions, taking care of databases, back end, front end, cloud hosting, CI/CD etc. Lately I work mostly with front end using React, Typescript, Javascript. ๐Ÿ“ ๐–๐ก๐š๐ญ ๐ฆ๐ฒ ๐œ๐ฅ๐ข๐ž๐ง๐ญ๐ฌ ๐ฌ๐š๐ฒ ๐š๐›๐จ๐ฎ๐ญ ๐ฆ๐ž: โญ"I have had the pleasure to work closely with Ihor in the past months and I found him very passionate about his work and is quality driven. He has outstanding communication and analytical skills and challenges the solution in every step, to deliver efficient and sustainable solutions. I strongly recommend him as an asset to any web application development team. Thanks Ihor for the excellent job you have done!!!!" โญ"Great experience with Ihor. He produces quality work and we look forward to working together on future projects." ๐Ÿ“ ๐–๐ก๐š๐ญ ๐ฆ๐ฒ ๐ญ๐ž๐š๐ฆ๐ฆ๐š๐ญ๐ž๐ฌ ๐ฌ๐š๐ฒ ๐š๐›๐จ๐ฎ๐ญ ๐ฆ๐ž: โญ"Ihor worked with me in a team at Yara for a year. During his time at Yara, he worked with frontend development, backend development and various AWS services. Ihor has solid technical knowledge, brings positive energy to the team and is very reliable. I highly recommend him and would love to work with him in the future." ๐Ÿ›  ๐“๐ž๐œ๐ก๐ง๐จ๐ฅ๐จ๐ ๐ข๐ž๐ฌ ๐ข๐ง ๐ฐ๐ก๐ข๐œ๐ก ๐ˆ ๐ฌ๐ฉ๐ž๐œ๐ข๐š๐ฅ๐ข๐ณ๐ž: ๐—•๐—ฎ๐—ฐ๐—ธ-๐—ฒ๐—ป๐—ฑ: C#, SQL, NodeJS, NestJS, ASP.NET Core, LINQ, Entity Framework, PostgreSQL, Unit Testing, REST APIs, GraphQL, Swagger, MediatR, Sequelize, OAuth 2, TypeORM, Microservices, Cryptography, MERN Stack, Serverless. ๐—™๐—ฟ๐—ผ๐—ป๐˜-๐—ฒ๐—ป๐—ฑ: React, TypeScript, JavaScript, HTML, CSS, Material UI, Figma, Jest, Less, Sass, Single-page Applications (SPA), Styled-components, UI Components, Design Systems, ESLint, React Hooks, Redux, Axios, Formik, Lodash, Recharts, React Router, Bootstrap, Google Analytics, MERN Stack, Cypress, Next.js. ๐——๐—ฒ๐˜ƒ๐—ข๐—ฝ๐˜€: Git, Docker, AWS, CI/CD, Azure DevOps, CircleCI, Windows, Linux, Postman, Datadog.
    Featured Skill TypeScript
    NestJS
    AWS Development
    React
    AngularJS
    ASP.NET MVC
    Redux
    Mobx
    Azure DevOps
    C#
    SQL
    JavaScript
    CSS
    Node.js
    Material UI
  • $999 hourly
    • 5.0/5
    • (32 jobs)
    I'm not available here. I work only outside Upwork now. Please don't try to contact me here, I'll not answer. I have an experience in developing applications in areas of: - fintech (insurance/loan/money transfers/mortgage) - regtech - auction/tender systems - real estate - social networks - content management systems - e-commerce
    Featured Skill TypeScript
    Data Science
    Machine Learning
    Deep Learning
    Blockchain Development
    .NET Core
    JavaScript
    API Development
    C#
    PHP
    Symfony
    Rust
    Python
  • $80 hourly
    • 5.0/5
    • (3 jobs)
    I have worked within the web development industry for over 10 years - In these 10 years I had a pleasure of working on various startups as well as fortune 500 companies such as spectrum.net. l've designed architectures and lead teams for smaller startups. I have a lot of experience with Angular / React / Vue.js together with TypeScript, HTML5, CSS3, Cypress (end to end testing), Jasmine / Jest (unit testing).
    Featured Skill TypeScript
    Unit Testing
    End-to-End Testing
    Front-End Development
    HTML5
    CSS 3
    Vue.js
    React
    Angular
    JavaScript
  • $50 hourly
    • 5.0/5
    • (19 jobs)
    ๐ŸŒŸ Top 5% developer across selected project categories; ๐ŸŒŸ Excellent communication in English; ๐ŸŒŸ Responsive โšก ๐ŸŒŸ 4500+ billed hours - 100% Job Success score; ๐ŸŒŸ Accredited "Top Rated Plus" community member; Welcome ๐Ÿ‘‹ I'm a full-stack web developer with over 7 years of experience. ๐Ÿš€ I cover the entire development process as an individual developer, working on both the frontend and backend sides. I also have excellent experience working in a team. My wish is to create successful projects, share my experience, and help people improve their businesses. I'm extremely passionate about what I do, whether you're at the concept stage or beyond; I'd enjoy chatting through your project. ๐Ÿ”Ž Advanced knowledge in Javascript, Typescript, CSS, HTML, SQL, and NoSQL. ๐Ÿ”Ž Expert in frameworks including Vue, Nuxt, React, Next, and Strapi. ๐Ÿ”Ž Knowledge of concurrency, resiliency, caching, HTTP and REST. ๐Ÿ”Ž Keeping the code semantically correct, structured, clean, and solid. ๐Ÿ”Ž Passionate about building distributed, scalable, reliable, and low latency applications. ๐Ÿ”Ž Excellent writing and communication skills. ๐Ÿ”Ž Experience working with distributed teams of developers, designers, and multi-functional teams. ๐Ÿ”Ž Flexible billing; your project, your terms! ๐Ÿ›  Frontend development ๐Ÿ›  - React/Redux, React Router, Next; - Vue/Vuex, Nuxt, Vuetify; - Typescript, ES6 / ES7 / ES8 - Chart libraries: D3, Chart.js, Highchart, Amcharts; - GraphQL, Apollo Client; - Jest; Mocha; Chai; - CSS/SCSS, Bootstrap, Bulma, Tailwind; - Webpack, Vite. ๐Ÿ›  Backend development ๐Ÿ›  - Firebase, Supabase - Node.js: Express, Fastify, Nest.js - RESTful APIs and APIs integrations - Scraping and testing: Selenium, Puppeteer, Playwright - CMS: Strapi.js - Experience with cloud platforms - GCP and AWS ๐Ÿ›  AWS development ๐Ÿ›  - EC2; S3; Cloudfront; IAM; Route 53; Certificate Manager; ๐Ÿ›  Databases ๐Ÿ›  - PostgreSQL, SQLite, MySQL; - MongoDB, Firestore; - ORMs: Sequelize, Knex, Prisma, Drizzle ๐Ÿ›  Other tools and services ๐Ÿ›  - Product management systems - JIRA, Asana, Linear; - Feature flag management - Amplitude, LaunchDarkly; - ElasticSearch integrations; - Log management systems - Rollbar; - Design apps - Figma; - Improving productivity and taking notes - Notion; - Managing translations - Smartling; ๐ŸŽฏ I am open to challenging projects that will simplify people's lives. I will help you complete your technical requirements so both of us have a clear vision of the desired results. Always open to discussing all your questions via chat or audio/video call.
    Featured Skill TypeScript
    Bootstrap
    SCSS
    Tailwind CSS
    HTML5
    Data Scraping
    RESTful API
    PostgreSQL
    MongoDB
    Node.js
    Search Engine Optimization
    React
    Nuxt.js
    Vuetify
    Vue.js
  • $60 hourly
    • 5.0/5
    • (27 jobs)
    Software Engineer, with extensive experience developing mobile and web applications from the ground up. Comfortable working on all aspects of the full-stack, from UI design and implementation on the front-end to API and database integration and development on the back-end. Back-end development specialities include API integration and development with GraphQL, RestAPIs, and authentication providers. Adept at both developing and maintaining highly scalable database solutions using PostgreSQL, MySQL, SQLite and DynamoDB amongst others. Multiple years of experience working with CMS providers such as WordPress and Strapi developing custom blogging platforms and eCommerce sites. Front-end development specialities include React and React Native development, UI and UX design, and native web development using HTML, CSS, JS and TypeScript. Developing many projects past launch, I have thoroughly studied SEO and ASO, using this to develop applications that are optimized. I have a First-Class Computer Science Degree from the University of St Andrews. Previously, I have worked in the Aerospace & Defence Industry, a sector where bad habits and low-quality code are simply not an option; a mentality that I maintain when working for my own clients. I am a relatively new freelancer, but I have had plenty of experience delivering high-quality software throughout my career. Thank you for taking the time to read this far. Expertise: React and React Native || HTML || CSS || JS || PostgreSQL || DynamoDB || WordPress || Strapi || GraphQL || RestAPI || Postgraphile || React Apollo || AWS Architecture || API Integration || SEO || ASO || Authentication APIs
    Featured Skill TypeScript
    Amazon DynamoDB
    PostgreSQL
    MySQL
    Website Maintenance
    Web Development
    React
    Node.js
    Next.js
    Firebase
    API Development
    React Native
    HTML
    Android App Development
    JavaScript
    iOS Development
    WordPress
    API Integration
  • $30 hourly
    • 5.0/5
    • (7 jobs)
    Computer programming is not just my profession, it's my passion. Striving to do my best on every project I always try to go one step beyond, and expand my knowledge. From small personal projects of getting into protected mode in x86-assembly under DOS and drawing some Bresenham lines and midpoint circles on screen(0A000h), pixel by pixel, or programming an AVR microcontroller, in C, to flash some LEDs and move some servos around upon a press of a button; all the way up to developing multiplatform applications with ActionScript3/Starling or C#/Unity3D in a team of 3-6 people, working with artists, project managers and QA; I'm accustomed to a wide spectrum of programming practices and always ready to dive into anything, eager to learn something new. Now, this last sentence was really long and I wasn't quite sure how to punctuate, so I've tried some semicolons... intuitively... writing is my hobby, and I'm not particularly good at it.
    Featured Skill TypeScript
    Unity
    Git
    HTML5 Canvas
    Vim
    Lisp
    X86 Assembly Language
    JavaScript
    C++
    C#
  • $45 hourly
    • 5.0/5
    • (5 jobs)
    ๐Ÿš€ Experienced Full Stack Web Developer | 10+ Years in the Field Greetings! I am seasoned Senior Full Stack Web Developer with over 10 years of hands-on experience in crafting innovative solutions for various projects and applications. My expertise lies in building dynamic Single Page Applications (SPAs) using a robust tech stack, including Angular, Node.JS, Javascript, SQL, PostgreSQL, MongoDB, AWS, and Docker. ๐Ÿฅ Specialized in Healthcare Projects One of my notable achievements includes spearheading healthcare projects, specifically in Radiation Therapy. I have successfully developed and implemented a Radiation Therapy (RT) data viewer and storage system with backup features. My commitment to data management extends to using advanced technologies such as Chart.js for report visualization and leveraging websockets paired with rxjs for real-time data updates. ๐Ÿ”ง Tech Savvy and Solution-Focused Proficient in Docker and docker-compose, I excel in streamlining the development and deployment process. My educational background includes a Master's Degree in Computer Science and Computer Programming, completed in 2012. Even during my academic journey, I delved into cutting-edge technologies, with my graduation project utilizing CUDA for parallel calculations, accelerating image processing workflows. ๐ŸŒ Recent Focus on Data Flow Control SPAs In recent years, my focus has been on crafting Single Page Applications that efficiently manage diverse data flows, such as documents, work hours, and sport analytics. Currently holding the position of a Senior Full Stack Developer, I bring a wealth of experience and a passion for collaborative teamwork, coupled with a keen interest in staying abreast of the latest technologies in web development. Let's collaborate to bring your projects to life!
    Featured Skill TypeScript
    RESTful Architecture
    Web Application
    Node.js
    JavaScript
    Docker
    PostgreSQL
    AngularJS
    HTML
    Angular
    SQL
    MongoDB
  • $89 hourly
    • 5.0/5
    • (30 jobs)
    ๐Ÿ† Top Rated UpWork freelancer ๐Ÿ•“ 9000+ hours worked โญ 5-star feedback โ˜‘๏ธ Verified portfolio I work regularly across all the cloud platforms (AWS, GCP, Azure) designing and building scalable efficient infrastructure. I mainly work using AWS, using Lambda, DynamoDB, EC2, ECS, RDS, EKS, Cognito, AppSync, Amplify. I also have experience in NodeJS, Javascript, and front-end development primarily using React & Angular. I'm very familiar with RESTful & GraphQL APIs either integrating them or building them out to integrate other services. In addition to deploying & managing containerised applications using Kubernetes.
    Featured Skill TypeScript
    Next.js
    Front-End Development
    Full-Stack Development
    AngularJS
    Amazon EC2
    React
    NoSQL Database
    HTML
    Back-End Development
    SQL
    Node.js
    Python
    JavaScript
  • $15 hourly
    • 5.0/5
    • (9 jobs)
    Hello my name is Felix Lopez, I am a Web and Mobile developer with 5 year of experience designing and developing quality apps and websites that are adaptable, powerful, modern in style and visually attractive. I am self-taught, always looking for ways to improve my skills by putting challenges in every new project I work on.
    Featured Skill TypeScript
    Machine Learning
    Next.js
    React Native
    styled-components
    TensorFlow
    Tailwind CSS
    Gatsby.js
    Mobile App
    React
    Node.js
    HTML5
    JavaScript
    CSS 3
    SCSS
  • $35 hourly
    • 5.0/5
    • (12 jobs)
    My skills and strengths are: Communication Proactivity Problem-solving Quick learner Teamwork Loves a challenge Thinking outside the box I've been working on web development since before I've finished university, mostly working with Zend Framework and Laravel at my internship. After I finished university, I joined Limonbyte, where I continue to work with Laravel together with vue.js, and also started to get involved with administrating the Ubuntu server in the office around that same time I started designing and building databases, mostly in MySQL with some in PostgreSQL. It was a small company and we had some big projects. Really loved working under that pressure and those challenges. Later, we also started to work on development of mobile apps in Ionic, around that same time I was promoted to team leader, where my responsibilities where guiding the development team I was assigned to, organize the tasks and delegate then. Around that same time I also became the full time administrator of the office servers, as an extra server was added to the server bank at the office. As team leader I lead and worked on node.js, Python and React.js projects. I'm most proud of the Python projects that were an scrapper for online bets, it took information of different sports and created bets based on their performance and other parameters. The other Python projects was a script OCR that scanned Instagram posts to find a particular post and that same script was later used to detect and delete text from car images.
    Featured Skill TypeScript
    MySQL Programming
    Socket.io
    Database Design
    Web Development
    Vue.js
    Next.js
    MySQL
    PostgreSQL
    React
    JavaScript
    Python
    PHP
    Laravel
    Node.js
  • $28 hourly
    • 5.0/5
    • (5 jobs)
    I'm a full-stack developer with 5 years of experience who loves building performant, robust, resilient interactive web applications. Expertise in Typescript, React, Nextjs, Laravel, and their ecosystems. Proficient in automated testing using Jest/Vitest, Cypress/Playwright. Experienced in DevOps, CI/CD, and Cloud infrastructure, especially with AWS. ### Other skills Frontend: Astro, Svelte, Solidjs. Backend: Express, Hono; Supabase, PocketBase; GraphQL, tRPC. Database: MySQL, PostgreSQL, SQLite, ElasticSearch. CMS: Contentful, Payload, Strapi.
    Featured Skill TypeScript
    Firebase
    NestJS
    Elasticsearch
    MySQL
    Next.js
    Web Application
    Vue.js
    GraphQL
    Node.js
    React
    Laravel
    Nuxt.js
    Docker
  • $35 hourly
    • 5.0/5
    • (10 jobs)
    Hello! Greg's here. I'm a middle+ fullstack developer. Let me tell you a bit who and what am I. I'm in love with web development, especially a frontend part of it. I love to make things look and act cool when it comes to UI/UX. I'm not a web designer, but I definitely have some taste in it. Closer to the subject - what can I do for you? My speciality is full-stack development. In 2 words, I work with Node.js and React.js, which are (ofc with different node libraries) pretty enough to build anything you want in web. Either it's a simple landing, or a huge complicated application - nothing is impossible with these guys. Besides, I got a solid amount of experience with web3, built 2 NFT applications using pure web3, Metamask, and smart contracts on solidity (oh and of course React and Node) So, here's my tech stack: Frontend: โ€ข React.js (functional components, hooks, everything) - middle+ โ€ข SCSS (or pure CSS, works too) - senior โ€ข Typescript (please let it be ts, not js :P) - middle+ โ€ข Pure JavaScript (middle +) โ€ข Makes not much sense to mention, but still, HTML5 โ€ข MUI (material UI for React) โ€ข Metamask/web3 (crypto-wallet extension for blockchain interactions) Backend: โ€ข Node.js โ€ข Express โ€ข MongoDB โ€ข Web3 โ€ข Solidity โ€ข BrainTree โ€ข ActiveCampaign Common: โ€ข Git โ€ข Rollup โ€ข Webpack โ€ข Unix think that's it, probably there're more, but they're less important, this list should be descriptive enough I believe. And now, as a final, want to say a couple of words to make it easier for you to decide if you need me on your project(s) or not If you came here looking for a high-quality, clean, easily maintainable and extensible code solution - you came to the right place. The most important thing for me is to make things look, work, and act good. I don't write dirty code for faster speed reasons So, if you need a quick as-is prototype for super-rapid launch, I'm sorry, I'm not the best fit for you. Don't get me wrong. It doesn't mean that I work slowly or something. In fact, I work fast (based on my experience, it's usally way faster than average), I work efficient, I provide high-quality code. But what is important - I never sacrifice quality for time And in the end, want to say, that I love informal chatting. I'm fine with routine, like Agile or anything, but if I can talk to you directly with simple words, you know, just as is, it means a lot for me All the best, Greg P.S. My first name is Mikhail in fact, but it's gonna be more comfortable for you and me also to go for Greg instead (coming from my last name)
    Featured Skill TypeScript
    Sass
    SaaS
    React Native
    React
    CSS 3
    Material UI
    ExpressJS
    HTML5
    MongoDB
    Node.js
    web3.js
    JavaScript
  • $55 hourly
    • 5.0/5
    • (35 jobs)
    ๐Ÿ‘ด Nine years of experience leading the development of GIS-based applications. โš™ Solid background in Architecting GIS-based solutions and the deployment of ArcGIS Enterprise in various scenarios. ๐Ÿ’ช Extensive knowledge of applying object-oriented principles and best practices through all phases of the software development life cycle. => High Skills in <= =============== = โ€ข = ArcGIS Enterprise = โ€ข = ArcGIS Online = โ€ข = GeoEvent = โ€ข = ArcGIS Pro = โ€ข =ArcMap = โ€ข = ArcGIS Dashboards = โ€ข = ArcGIS Workforce = โ€ข =ArcGIS Field Maps = โ€ข = ArcGIS Experience Builder = โ€ข = ArcGIS Web AppBuilder = โ€ข =Arcpy = โ€ข = ArcObjects = โ€ข = ArcGIS Arcade = โ€ข = ArcGIS REST API = โ€ข = ArcGIS API for Python = โ€ข = ArcGIS Maps SDK for .NET = โ€ข = ArcGIS Maps SDK for JavaScript = โ€ข = ArcGIS Maps SDK for Qt = โ€ข = ArcSDE = โ€ข = PostgreSQL = โ€ข = Oracle = โ€ข = MS SQL Server = โ€ข = QGIS = โ€ข = Leaflet = โ€ข = Mapbox = โ€ข = GeoServer = โ€ข = React Native = โ€ข = ArcGIS AppStudio
    Featured Skill TypeScript
    Mapbox
    Oracle Database
    GIS
    Architecture Consultation
    C#
    CSS 3
    Python
    .NET Core
    HTML
    React
    ArcGIS Online
    Node.js
    ArcGIS
    QGIS
  • $50 hourly
    • 5.0/5
    • (5 jobs)
    ๐ŸŒŸ Projects delivered with up to a 70% reduction in operational costs. โฑ๏ธ Refactoring that improved performance by 50%. ๐Ÿฅ‡ Top 3% of Upwork Talent. ๐Ÿ† 10+ years of Backend Developer experience. My clients received error-free scalable and highly effective software solutions, boosting their business efficiency and profitability. This not only gives them a competitive edge but also paves their way towards becoming market leaders. ๐๐ž๐ž๐ ๐ž๐Ÿ๐Ÿ๐ž๐œ๐ญ๐ข๐ฏ๐ž, ๐‡๐ข๐ ๐ก-๐ˆ๐ฆ๐ฉ๐š๐œ๐ญ ๐ฌ๐จ๐ฅ๐ฎ๐ญ๐ข๐จ๐ง๐ฌ? ๐‡๐ž๐ซ๐ž'๐ฌ ๐ฐ๐ก๐š๐ญ ๐ˆ ๐œ๐š๐ง ๐จ๐Ÿ๐Ÿ๐ž๐ซ: โœ”๏ธย API development for seamless connection and usage across platforms. โœ”๏ธ API integration with any third-party solutions. โœ”๏ธ Tailor-made systems from the ground up for automating business processes. โœ”๏ธย Custom infrastructure based on cutting-edge technologies to transform your ideas into reality and meet your business requirements. โœ”๏ธ Highly scalable database structures. โœ”๏ธย Real-time log analytics with commercial/custom dashboards. โœ”๏ธย CI/CD to automate your workflow from commit, testing, deployment, notification, and more. โœ”๏ธย Comprehensive testing across all project domains, encompassing all use cases, edge cases, and complete end-to-end scenarios. ๐ˆ ๐œ๐š๐ง๐ง๐จ๐ญ ๐ก๐ž๐ฅ๐ฉ ๐ž๐ฏ๐ž๐ซ๐ฒ๐›๐จ๐๐ฒ, ๐›๐ฎ๐ญ ๐ฐ๐ž ๐ฆ๐š๐ฒ ๐›๐ž ๐š ๐ ๐ซ๐ž๐š๐ญ ๐Ÿ๐ข๐ญ ๐ข๐Ÿ ๐ฒ๐จ๐ฎ ๐š๐ซ๐ž ๐ญ๐ก๐ข๐ง๐ค๐ข๐ง๐ : โ— "I need a solution that I can trust 100% to solve our problems RIGHT.โ€ โ— "We have ambitious goals and need a solution architect who can build scalable solutions to match our growth.โ€ โ— "I'm not satisfied with out-of-box applications. We need an expert who can build custom applications to meet our requirements.โ€ โ— "We're willing to invest in premium solutions that adhere to the highest industry standards. Thatโ€™s why we need the BEST developers who place a premium on quality.โ€ ๐–๐จ๐ซ๐ค๐ข๐ง๐  ๐ฐ๐ข๐ญ๐ก ๐ฆ๐ž, ๐ฒ๐จ๐ฎ ๐ฐ๐ข๐ฅ๐ฅ: โœ”๏ธ Save your money by getting clean, efficient code that is easy to read, understand, and extend for any future needs your business might have. A well-known fact is that a well-developed and SOLID principals-based application is much cheaper and faster to expand and modify than developing a new one from scratch whenever business requirements change. โœ”๏ธ Get support and warranty on all delivered projects. โœ”๏ธ Have a reliable and committed partner that guarantees tasks are executed flawlessly, punctually, and in the most effective manner. โœ”๏ธ Focus on more important tasks without distractions, as I handle your technical problems and challenges. โœ”๏ธ Witness rapid business expansion through advanced technology solutions customized to your company's needs. ๐‚๐จ๐ซ๐ž ๐„๐ฑ๐ฉ๐ž๐ซ๐ข๐ž๐ง๐œ๐ž & ๐“๐ž๐œ๐ก๐ง๐ข๐œ๐š๐ฅ ๐Š๐ง๐จ๐ฐ๐ฅ๐ž๐๐ ๐ž: ๐Ÿ”ธ Backend Development: NodeJS, NestJS, Express, Fastify ๐Ÿ”ธ Frameworks & Testing: Prisma, Jest, Passport, ESLint ๐Ÿ”ธ Programming: JavaScript, TypeScript ๐Ÿ”ธ Infrastructure as Code: Terraform, CloudFormation ๐Ÿ”ธ API Development & Integration: RESTful, GraphQL, Google APIs, Stripe ๐Ÿ”ธ SQL Management: PostgreSQL, MySQL, RDS ๐Ÿ”ธย NoSQL Management: MongoDB, Redis, DynamoDB ๐Ÿ”ธ Compute & Serverless: Lambda, EC2, API Gateway ๐Ÿ”ธ Authentication & Authorization: Cognito, Auth0 ๐Ÿ”ธ Messaging & Notification Services: SES, SQS, SNS, EventBridge, AWS Chatbot ๐Ÿ”ธ Storage & Content Delivery: S3, Amazon Location Service, Route 53, CloudFront ๐Ÿ”ธ Networking & Security: VPC, IAM, KMS, Parameter Store ๐Ÿ”ธ Monitoring & Data Analytics: CloudWatch, X-Ray, Athena, Amazon QuickSight ๐ŸŸข ๐‘๐ž๐š๐๐ฒ ๐ญ๐จ ๐“๐š๐ค๐ž ๐ญ๐ก๐ž ๐๐ž๐ฑ๐ญ ๐’๐ญ๐ž๐ฉ? Let's connect! I'm passionate about employing my expertise to drive your project to new heights. Send me a message to explore how we can achieve groundbreaking success together.
    Featured Skill TypeScript
    API Development
    Amazon Web Services
    JavaScript
    API
    Node.js
    RESTful API
    NestJS
    ExpressJS
    Serverless Computing
    Back-End Development
    DevOps
    Solution Architecture
  • $40 hourly
    • 5.0/5
    • (27 jobs)
    Hello! ๐Ÿ‘‹ I'm Stephan, a full stack developer and system administrator. I excel at building, installing and maintaining web and server applications. I've primarily been using React for building web apps, but I also have experience with other popular frontend frameworks such as Vue and Svelte. For server-side apps/scripts, I mainly use Node.js (TypeScript), but depending on the requirements, I may use Rust, Golang or C#. For desktop apps, I've been having a blast using Tauri. Electron is on my list too.
    Featured Skill TypeScript
    Web Scraping
    Automation
    Scripting
    System Administration
    API
    JavaScript
    Web Application
    React
    Node.js
    Desktop Application
  • $27 hourly
    • 5.0/5
    • (2 jobs)
    I am a highly motivated software developer with three years of work experience and a Master's degree in applied computer science. At work, I've learned valuable things about full-stack development, in particular with C++, SQL and SOAP on the backend and with Java, JSF and Primefaces on the frontend. After that I went back to studying with a main emphasis on JavaScript/TypeScript based applications and Web security, in particular with OAuth 2.0 and JSON Web Tokens. Currently, I prefer to work with Node.js combined with ReactJS, Express.js and MongoDB, but furthermore, I am always passionate about new technologies. Over the years I came in contact with a lot of transferable concepts and with technologies, I could pick up again.
    Featured Skill TypeScript
    RESTful Architecture
    JavaScript
    HTML
    CSS
    Java
    C++
    Python
    AngularJS
    React
    MongoDB
    Bootstrap
    Node.js
    PostgreSQL
  • $50 hourly
    • 4.9/5
    • (69 jobs)
    I am a passionate and quality-oriented software engineer with: โœ… Over a decade of professional experience โœ… Proven track record of successful client relationships โ–บKey skills: 1. Software design & architecture - Gathering and eliciting requirements, researching effective solutions, and modeling designs that can be built. (Writing user stories, requirements research, software requirement specifications documentation, strategic planning, and road mapping). 2. Database design & DBMS - ERD modeling. NoSQL and SQL schema design. DB Normalization, query optimization, and scaling. 3. Back-end programming: Node js, Nest, Typescript/Javascript, PHP/Laravel/Codeigniter, Python, Java, C++. 4. Front-end programming: React and Vue. 5. DevOps - Cloud Computing(AWS, Azure, Google), shell scripting, serverless, and CI/CD workflow(Docker, Git). โ–บArchitecture: Monolithic, Microservices - I have been involved in developing automation, back-end logic, APIs, web and mobile UI components, chrome extensions, and deploying servers/cloud solutions. - I am resourceful in developing a complete MVP web/mobile application. - I have worked with industries ranging from manufacturing, e-commerce, fintech, social networks, AI, etc. - Very flexible to work in different workflows and contribute to existing code base.
    Featured Skill TypeScript
    Vue.js
    React
    Artificial Intelligence
    RESTful API
    Node.js
    Python
    JavaScript
    NestJS
    Java
    MySQL
    Software Architecture & Design
    MongoDB
    Cloud Engineering
    Generative AI
  • $70 hourly
    • 4.6/5
    • (98 jobs)
    I'm an independent software consultant specializing in web app development and design. Leveraging professional tools, I craft user-centric solutions tailored to your specific needs and budget. Drawing on experience at a Fortune 500 enterprise like Analog Devices Inc., I ensure a clear understanding of your project goals and handle the entire development lifecycle, including deployment. This means you can focus on your core business while I take care of building and launching your web application. I work independently and handle all aspects of your project, from design to deployment. This ensures a single point of contact and streamlined communication throughout the process. Feel free to schedule an interview to learn more about my approach and how I can contribute to your project. Who should hire me? - Startups seeking to build scalable web or mobile apps from the ground up. I leverage efficient and agile methodologies to create future-proof solutions that can grow with your business. - Individuals and small businesses needing guidance on web app development, scalability, and budgeting. My consultations translate your vision into a clear roadmap, ensuring cost-effectiveness and long-term success. - Entrepreneurs with evolving business models who require expert app development direction. I can help you navigate the ever-changing app landscape and find the best technology fit for your unique needs. - Mid-sized to large enterprises looking for a versatile developer. I offer a full spectrum of skills, from frontend development to full-stack expertise, with design and deployment experience to ensure seamless project execution. Why I Embrace a Multifaceted Approach? My journey began in architectural design, where I explored integrating technology into physical spaces. This experience instilled in me a strong foundation in research, reading, and problem-solving. While coding initially presented a challenge, I soon realized my design background provided a solid base for web development and UX/UI design. I transitioned to freelancing, allowing me to leverage my diverse skillset. The ever-evolving nature of the web industry demands flexibility and a thirst for knowledge. My research and reading skills, honed during my academic background, empower me to quickly adapt to new technologies and tackle challenges with enthusiasm. This research ability and understanding of abstract concepts are highly transferable to building startups and developing apps. As you know, most information is readily available online, and a significant portion of a developer's role involves reading documentation and quickly grasping complex ideas. This aligns perfectly with my strengths. Therefore, I prioritize staying up-to-date with the latest advancements in the field. I actively seek out new technologies and challenges, forsaking the comfort of relying solely on familiar methods. This commitment to continuous learning ensures I can deliver the most effective solutions for your project. Common Mistakes When Hiring Programmers Many clients struggle to identify the right skill set when hiring programmers and often end up with code full of bugs. Here are some common mistakes to avoid: 1. Underestimating frontend development's complexity: Frontend development can be just as complicated, if not more so, than backend development. Donโ€™t assume itโ€™s easier. 2. Believing enterprise experience guarantees better results: Just because someone has worked at a large enterprise doesn't mean they can build an app from scratch, especially if their experience is focused on optimization rather than creation. Also, many tech giants emphasize algorithms in their interviews, which, in my opinion, are less relevant in the age of tools like ChatGPT. 3. Assuming computer science degrees guarantee coding ability: While a computer science degree provides a solid understanding of programming concepts, it doesnโ€™t necessarily mean the person can code effectively. 4. Hiring cheaper developers and ending up with messy code: Platforms like Upwork offer a global pool of developers, and while you can find reasonably priced talent, lower costs donโ€™t always equate to quality work. 5. Developing and bug-fixing apps by multiple developers, especially on a fixed-price basis: The code needs to be constantly organized, cleaned, and updated. Apps built this way can become messy, leading to situations where a simple CSS fix takes hours. Code lines can grow into thousands, function names might not be descriptive, etc. This will be a total waste of your money! I'm not saying you must always hire me, but it's crucial to hire the right engineers who can do the right job for you! I understand that finding the right resources isn't easy, but I encourage you to take the time to do it right. Seek consultations, ask friends for help, and make sure you find the right fit for your needs. I look forward to hearing from you soon!
    Featured Skill TypeScript
    Vue.js
    AWS Lambda
    PostgreSQL
    MongoDB
    Node.js
    HTML
    AWS Amplify
    JavaScript
    React
    Redux
    Full-Stack Development
    Front-End Development
    Mobx
    UX & UI
  • $20 hourly
    • 4.9/5
    • (15 jobs)
    Hi! I'm a web developer with experience in various web development technologies and tools, including Node.js, React.js, PostgreSQL, TypeScript, React Native, Firebase and web design. My focus is on delivering high-quality, customized solutions that are tailored to my clients' unique needs. If you are looking for a reliable and experienced web developer to take your project to the next level, you are in the right place. With my extensive experience and skills, I can help you create an effective and optimized online presence that appeals to your target audience. Whether you need a website, a mobile app or any other type of digital solution, I can help you achieve your goals. I will work with you every step of the way to make sure the end result meets your expectations. So, if you are ready to take your business to the next level with an effective and optimized online presence, don't hesitate to contact me. I'm here to help you achieve your goals effectively and efficiently.
    Featured Skill TypeScript
    Next.js
    Responsive Design
    UX & UI
    App Development
    RESTful API
    Web Application
    Branding & Marketing
    Node.js
    React Native
    Firebase
    React
    GraphQL
    JavaScript
    Mobile App Development
  • $65 hourly
    • 5.0/5
    • (32 jobs)
    Greetings! I am a Senior front-end developer with a proven track record in React.js, Angular, JavaScript, HTML, and CSS. Finished 22+ front end projects. 3500+ happy hours, full of challenging tasks, crucial moments, and fun. From an idea to the final launch, I've got you covered. Please feel free to write to me before the project. โญโญโญโญโญ "Vitalii is a person to cooperate with for those who care about their time, money, quality of work, deadlines, and want to avoid hustling. I was impressed by his ability to dive into the context of tasks, finding the right approach for a particular task, asking the right questions, and providing updates on a daily basis. Everything went smooth from the very first message to the final result. We were able to rump up the developing process, improve the code base without the need for big rewrites, and all within just a week with Vitalii's help. His architecture skills and experience have helped us to find the right way for developing the last milestone which was quite tricky and complicated." - Daniel Turczaล„ski, Entrepreneur, JQL Search Extensions. Why you should choose me over other front-end developers: ๐Ÿ… Top Rated Plus Front-End Developer - ONLY 3% on Upwork ๐ŸŽฏ All projects have successfully finished with five-star feedback โœ… Certificates from Microsoft and Udemy โšก Immediate answers to any contract/invite in less than three hours โŒš Available for RUSH projects and calls You will get more than just a front-end developer: - Top-notch experience in Front-end development (React, Angular, JavaScript, Typescript, HTML, CSS) - Proven soft and hard skills - Ability to quickly dive into the project and deliver results within a minimum time frame - 24/7 availability for communication and support - Hustle-free environment for your ideas - An individual deeply committed to your success and adding value to your enterprise ๐Ÿ’ก Pro tip: Do you want to help your project get into the MARKET? Please give it a favour, write to me. Itโ€™s FREE. --- Keywords: Front End Developer, Front End Development, Front End, React, React.js, TypeScript, JavaScript, JS, Redux, Redux Toolkit, React Hook Form, React Query, React Table, React Router, React Bootstrap, Material UI, MUI, Angular, Angular.js, Angular 8, Angular 9, Angular 10, Angular 11, Angular 12, Angular Material, Ng Bootstrap, NgRx, RxJS, Ng cli, Nx cli, Next.js, SSR, SSG, SWR, App Router, Pages Router, Tailwind CSS, Tailwind, Radix UI, Shadecn UI, Styled Components, CSS Modules, HTML, HTML5, CSS, CSS3, Twitter Bootstrap, Bootstrap, Sass, Less, Scss, Webpack, Vite, Vite.js, Vercel, Cloudflare Pages, API, REST, Graphql, Jira, Asana, Shortcut, GitHub, BitBucket, GitLab, Figma, Zeplin, Adobe XD, Landing Page, SaaS, MVP, PoC, Startup, Product, Enterprise.
    Featured Skill TypeScript
    Tailwind CSS
    Redux
    Next.js
    Angular Material
    Material UI
    Bootstrap
    Angular
    React
    Front-End Development
    Sass
    SCSS
    CSS
    HTML
    JavaScript
  • $65 hourly
    • 4.9/5
    • (49 jobs)
    Highly skilled software developer with over 12 years of experience delivering exceptional solutions to clients. I specialize in full-stack development, including expertise in back-end, front-end, and DevOps, making me well-equipped to tackle complex projects. I have a proven track record in developing robust, scalable, and user-friendly applications across various industries, including finance, healthcare, and e-commerce. With excellent communication skills and a strong commitment to collaboration, I ensure smooth project delivery and successful outcomes. I am ready to bring my expertise to your next project on Upwork Back-end technologies and languages: - Java, Spring Boot, JPA/Hibernate + Spring Data - Scala, Play Framework, Akka - Node.Js, Express, Nest.Js, TypeScript - Maven/Gradle/SBT/NPM - Mysql, PostgreSql, MongoDB, Redis - GRPC, Protobuf DevOps and Microservices: - Linux/Unix - Docker - Nginx - Kubernetes - Prometheus - ELK stack Front-end technologies: - HTML/CSS/JavaScript - Angular - React
    Featured Skill TypeScript
    NestJS
    Kubernetes
    Spring Boot
    Microservice
    API
    MongoDB
    Node.js
    Angular
    Scala
    PostgreSQL
    Java
    React
    Amazon Web Services
    JavaScript
  • $65 hourly
    • 5.0/5
    • (32 jobs)
    Upwork achievements: 100% Job Success ๐ŸŒŸ Top Rated Plus ๐Ÿš€ Web developer with over a decade of expertise in creating web applications and APIs. Proven track record of delivering high-quality solutions in both small startup and large enterprise environments. Technologies I use in frontend: Angular, Ionic, Nx, NgRx, RxJS, Three.js, D3, Playwright, Jest, TypeScript, Angular Material, Bootstrap, SAP Spartacus... I can architect and implement web apps of varying complexities, ensuring high performance and maintainability. Can upgrade your app to the latest version of Angular, incorporating new features and optimizations. I can create a "zoneless" Angular app, for the best performance possible, close to vanilla JS. I know all the latest features of Angular (Signals, Standalone Components, lazy loading...) and can consult your team. Extensive experience in building robust systems including WMS, CRM, and ERP applications, with a focus on scalability and user experience. Proficient in creating data visualizations using Canvas API, WASM, Three.js, Service Worker API, and many others, ranging from simple charts and animated UI parts to advanced 3D modeling applications. Using Rust, I can implement APIs following the Service-Oriented Architecture (SOA) and the OpenAPI Specification. I prioritize writing code in Rust that is both safe and fast, leveraging the language's strengths in these areas. My expertise in Rust primarily lies in web development, encompassing REST APIs, database connections, data analysis, and background task execution. I have extensive experience in caching, including handling mutexes, semaphores, preventing dog-piling and race condition effects, and ensuring Resource Acquisition Is Initialization (RAII) for optimal resource management. One of my notable accomplishments is developing a 100% Rust REST API that serves multiple web and mobile applications, including CRM systems, task managers, mobile apps, and websites. As a contractor, I've been working with Vodafone (devices control system, reports generator), NTT & Sony (custom payment module for Spartacus CRM). Advocate for declarative coding practices, ensuring comprehensive test coverage and flexibility for future enhancements. My favorite books are "Clean Code", and "Patterns of Enterprise Application Architecture". I like and respect SOLID principles.
    Featured Skill TypeScript
    Material Design
    RxJS
    Software Consultation
    Front-End Development
    Rust
    RESTful API
    Code Review
    Figma
    API Development
    Redis
    Angular
    MySQL
    Ionic Framework
  • $25 hourly
    • 5.0/5
    • (16 jobs)
    Hi, you would love to work with me, a friendly developer who is responsive (I reply my clients in minutes) with a solid foundation in modern front-end technologies and a passion for crafting intuitive mobile experiences, I am excited about the opportunity to contribute to your projectโ€™s success. โšกBonus disclaimer: I also do native iOS/Android development , so any chance you want to migrate to another tech stack or need to dive deep to native platform you can count on me. Here is how I can help you with my 6-year experience in React Native development: โ€ข I've worked on 2 projects that has more than millions users. โ€ข Producing responsive screens and visual components from design materials, then hook them up with backend endpoints. โ€ข Integrating application logic with 3rd-party services or SDKs. โ€ข Configuring app distribution using Diawi (Test), TestFlight (Staging) and Apple Developer (Production). Optionally, I configure a mobile CI system that automates app deployment using Fastlane over Bitrise (Cloud) or Jenkins (On-premise). โ€ข Last but not least, I know Apple and Google submissions guidelines in-and-out, tips and tricks on how to by-pass to get your app approved faster. โ€ข These daunting experiences should be familiar to me, who has spent the last 6 years working with various modern mobile app frameworks, and finally in love with React Native. My portfolio contains entirely of React Native projects, which is my most favorite framework in my career as a mobile frontend developer. Since 2017, I've been heavily using React Native to build dozens of business-grade mobile apps that leverage social media systems, e- commerce, payments, multi language chat/messaging portal, map-based/location-based/anything-based.... Yet I still feel intriguing about your innovate product and want to explore more if have a chance. I live in ICT timezone (UTC+7) but I am pretty flexible to adjust to different time zones (AU/ EU/ US markets) to accommodate client's needs. On top of it, I always keep my clients updated via daily reports so that they easily keep track of progress. I am available via e-mails and in messengers for anything urgent. Regard Gio Na Le
    Featured Skill TypeScript
    Socket.io
    Redux
    Crypto Wallet Development
    Map Integration
    GraphQL
    React Native
    Firebase
    JavaScript
    Android
    Mobile App Development
    iOS
    iOS Development
    RESTful API
    User Authentication
    In-App Purchases
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