Hire the Best Chrome Extension Developers
in Bulgaria

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Elvis A.

Sofia, Bulgaria

$70/hr
4.8
22 jobs

Full-Stack Web Developer Hi, I'm Elvis. I'm a Full-Stack Web Developer with 9 years of experience building all kinds of Web, Mobile, and Desktop applications. I've worked with clients from many different industries, helping them turn their ideas into real, functional products. Most of my work is around modern web technologies — HTML, CSS/SCSS, JavaScript/TypeScript, Python, and .NET C#. I enjoy building clean, user-friendly frontends and solid, reliable backends. Along the way, I've integrated lots of third-party services like PayPal, Stripe, WhatsApp, Telegram, Google APIs, and more. I'm comfortable working with databases such as SQL, MySQL, PostgreSQL, and MongoDB. I've also deployed projects to AWS, GCP, Vercel, Hostinger, and other hosting platforms. Beyond traditional development, I work on AI code evaluation — creating rigorous coding tasks, writing test suites, reviewing AI-generated code for correctness, and performing detailed QA analysis. This involves deep code review across multiple languages, writing technical specifications, and verifying everything through Docker testing pipelines. If you already have UI/UX designs, I can bring them to life using React/Redux, Angular, Material-UI, Nebular, Bootstrap, and similar tools. Other tools and skills I use regularly: Git (advanced workflows — patches, diffs, rebasing, multi-repo work) Docker for testing and deployment Technical writing — specs, QA reports, task descriptions A few things about how I work: I follow modern standards and good development practices I like writing clean, organized, readable code I'm persistent and always learning I'm honest about my hours and prefer long-term collaborations Feel free to check out my portfolio and reviews. If you think I might be a good fit for your project, I'd be happy to talk.

  • Google Chrome Extension
  • JavaScript
  • CSS 3
  • TypeScript
  • C#
  • Python
  • Angular
  • Node.js
  • ASP.NET Core
  • Next.js
  • SQL
  • Web Development
  • HTML5
  • MongoDB
  • React
Orfey K.

Sofia, Bulgaria

$35/hr
5.0
7 jobs

Welcome ⭐⭐⭐⭐⭐ TOP Rated Plus ⏱ Reply within 24 hours 24/7 💼 I'm a Full-Stack Developer from Bulgaria with over 3 years of experience in building applications from scratch using JavaScript / Typescript / Node / React / Angular / Nest / MongoDB / Express. Graduated with the honors student of Software University, Sofia, involved in leading and organizing students. I love programming, especially Web Development, solving problems and working with new and exciting technologies. I've been working on different types of projects so far in various domains such as CRM, ERP, Finance, Traveling, Fitness, Staffing Service, and E-commerce. Currently, I am working on two exciting 💗 projects: ✅ Open-Source Commerce Platform for On-Demand Economy and Digital Marketplaces ✅ Open-Source Business Management Platform (ERP/CRM/HRM) 🌟 You can check both projects under GitHub ⏩ github.com/ever-co 🔥 Tech Stack: Frontend: ✔ JavaScript ✔ HTML / CSS ✔ TypeScript ✔ Angular ✔ React ✔ Redux ✔ Next ✔ RxJs ✔ SASS ✔ TailwindCSS Backend: ✔ Node ✔ Nest ✔ Express ✔ Firebase Databases: ✔ MongoDB Additional Tech: ✔ Chrome Extention ✔ Git ✔ Unit Testing (Mocha, Chai) 📢 Currently working from ✅ Upwork EXPERT-VETTED (TOP 1%) Agency, but if you decide to hire me will work DIRECTLY with you, while our agency will only stay behind unless you need any other services, e.g. additional developers, designers, or an architect/CTO. 📈 Feel free to review our agency on Upwork (⏩ upwork.com/ag/ever): track record history, feedbacks, portfolios, and team. I can help you build your exciting product using good coding practices and building scalable and maintainable code!🏆 Glad to answer any questions, let's jump in a call, Best regards, Orfey | Software Development | Applications | App | Software Design | Design | UI | UX | Product Development | Product Design | Prototyping | Drafts | Mockups | Backlog | Idea | Mobile development | Mobile Apps | Single App | Server | Architecture | Roadmap | Scale | QA | Test | Data Analysis | Machine Learning | AI | Crypto | CMS | CRM | ERP | HRM | Ecommerce | SaaS | PaaS | DevOps | Data Base | WEB | Mobile | Adaptive | Responsive | Tablet | Desktop | Script | Code | Cloud | IoT | Agile | Scrum | Team | Agency | Serverless | Docker | Startup | Enterprise | MVP | GitHub | GitLab | Bitbucket | Behance | Figma | Native | Hybrid | Portal | Program | Timeline | Frontend | Backend | Full-Stack |

  • Google Chrome Extension
  • JavaScript
  • Responsive Design
  • Unit Testing
  • MongoDB
  • Node.js
  • Angular
  • TypeScript
  • React
  • NestJS
  • Firebase
  • Next.js
  • RxJS
  • HTML5
Peter M.

Varna, Bulgaria

$40/hr
4.9
117 jobs

My specializations is developing of web services, network services, web and desktop applications, browsers extensions, automation and data processing solutions, using of APIs, etc. I can do all parts of project except design: convert design or sketch to templates, develop back-end and front-end, configure and support software, hardware and network. Experience both in programming and system administration helps me to see the whole picture and to find the best solutions. IT is not just my profession, IT is my life from an early age. I started programming in Basic at 1998, when I was 9 years old. Since 2004 I am developing mainly in PHP and Javascript. Also since 2006 I have worked several years as Linux and network administrator in a couple of ISPs. My main skills: ✓ Networks, protocols and services. I have wide experience with non-standard types of communications, building software from scratch for very specific tasks, etc. ✓ JavaScript and company: Chrome and Firefox extensions, Google Script, Node.js, Puppeteer/PhantomJS, Electron/NW.js, Vue.js, etc. ✓ PHP. Usually I use my own framework. ✓ Deep knowledge in wide range of web-scrapping and automation technologies. ✓ SQL and NoSQL databases. Wide experience with MySQL. ✓ HTML, CSS, also Bootstrap, etc. ✓ Wide range of APIs: Google, Yandex, social networks, payment systems, VoIP and many others. ✓ System and network administration. I have experience with many technologies and services. I have thousands successfully completed jobs and hundreds happy clients. I love unusual tasks and unusual solutions of usual problems. I take only those tasks which I can perform in high quality. I am full-time freelancer.

  • Google Chrome Extension
  • JavaScript
  • PHP
  • Data Scraping
  • Node.js
  • Vue.js
  • Network Software
  • Web Service
  • PROXY Networks Remote Support Software
  • VPN
  • Electron
  • Google Ads
  • Linux System Administration
  • API Development

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