Kostiantyn P.
Expert Fullstack developer AI developer | Next.js | Express | React.js
React frontend full stack developer 12 years of experience in full stack development, AI development , complex web applications. React React.js | Next Next.js | Express Express.js | Node.js Node | JavaScript Js | AI developer , pipecat , RTVI , voice assistant , Stripe ✅ Generic Software Development Expertise 🔹 AI dailybots , pipecat , RTVI 🔹 Development of complex web applications 🔹 API development of for iPhone, Android, React apps. 🔹 Development of admin panel , dashboards , CRM , CMS 🔹 Website development ✅ Languages Frameworks 🔹 Python ( Django ) 🔹 JavaScript ( React JS Next.js Node.js Express ) ✅ Databases 🔹 MySQL 🔹 Redis 🔹 MongoDB 🔹 PostgreSQL 🔹 Redis ✅ Libraries, technologies, API’s 🔹 Zapier 🔹 n8n 🔹 Retell 🔹 Twillio 🔹 Elevenlabs 🔹 OpenAI 🔹 Pipecat 🔹 Contentful 🔹 Google API 🔹 Facebook API 🔹 Twitter API 🔹 Youtube API 🔹 RESTFull API 🔹 OKPAY API 🔹 JSON 🔹 XML 🔹 Push Notifications ✅ Experience with Environments Tools / Other 🔹 Redmine 🔹 GIT 🔹 Bug tracking systems: JIRA 🔹 Docker 🔹 Linux Ubuntu ✅ Languages 🔹 English – fluent 🔹 Ukrainian – native 🔹 Russian ✅ Next Steps I’d be thrilled to explore how we can ensure your project’s success. Are you available for a free 30 minute consultation? In this session, we’ll review our services, methodologies, communication process, and pricing structure. We’ll also dive into your project details to craft a tailored plan with a timeline and cost estimate. Rest assured, we’re flexible and can accommodate a wide range of budgets. Feel free to message me if you’d like to schedule a meeting, and I’ll provide you with an Upwork scheduler link. ✅ Highlighted Skills Full Stack Development React React.js Next Next.js Express Express.js Node.js Node JavaScript Js AI developer , pipecat , RTVI voice assistant devops php laravel react native developer ux designer erpnext laravel php developer metronic symphony simfony web developer playable ads react wordpress developer full stack developer web developer python developer backend developer sql mysql database web researcher javascript developer full stack developer front end developer full stack php "php laravel" "react native developer" "devops" "laravel php developer" "symfony php developer" "metronic" "symphony" "symphony developer" "web developer" "playable ads" "react" "website design" wordpress developer website design seo Currently i am not working with Laravel | CodeIgniter | Vue.js Vue | Angular |
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $16k
Billed in all: $94,843$95k
$5.5k in the last 6 months
Across 10 contracts
Earnings, last 30 days
Skill rankings: Top 3% in ElevenLabs
Ranked by MRR among everyone on Upwork with the skill.
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