Sergey K.
60% Job Success

JS Engineer | React | React Native | Node.js | AWS | Firebase

Hi there. I`m creative Senior JS Engineer with 8 years experience in focus on AWS, Firebase, React, Node.js and React Native technologies. I`m developed a lot of different applications based on web, mobile and desktop applications from scratch or on a final stage. Also I have experience in Tech/Team Leading, mentoring, developing personal development plans, evaluating projects and solving non-standard problems. My common domains: Healthcare, Radio, Automotive, Education, Retail and E-commerce, Business Sector, Media and Entertainment Summary • Strong problem-solving, communication, time management & team management skills • Proficiency at application architecture principles (including SOLID / DDD / DRY / KISS) • Understanding and efficient usage of design patterns • Project / tasks estimation (concept based, milestone, roadmap, detailed) • Agile / Scrum / Kanban (both team management & development) • Test-driven development (real unit- & acceptance- tests usage everyday) • High load optimization (both game Back-end and enterprise system solutions) • Scalable architecture solutions (both horizontal & vertical) • Set up serverless architecture including AWS and Firebase • Experience in major programming languages, databases, operating hardware and • Software understanding of software development lifecycle Proficiency Operating Systems: Microsoft Windows, MacOS Platforms: React Native, Expo, NodeJS Libraries: React, Tailwind CSS, Webpack, SASS / SCSS, Bootstrap, Apollo GraphQL, Less, styled-components, React testing library, Cypress, Ant Design State Management: Redux, MobX Query Languages: GraphQL, SQL IDE: Xcode, Visual Studio Code, Android Studio Tools: Appium, Postman Databases: MongoDB, MySQL, PostgreSQL, SQLite CI/CD: Jenkins, Github Actions Frameworks: Selenium, Appium, Jest, Express, Next.js Programming languages: TypeScript, JavaScript Containerization: Docker Orchestration Systems: Kubernetes Cloud Computing Platforms: FIrebase , AWS(S3, EC2, Lambda, DynamoDB, EBS, EFS, IAM, RDS, SNS, VPC, CloudWatch, Cognito, Route, 53, SQS, Terraform, Aurora, Glacier, ElastiCache, CloudFront, Redshift, Kinesis, Beanstalk, Cloud Formation, KMS) Version Control Systems: Git Learned in the university: C/C++, Java, Python, Haskell, Assembler, PHP, Qt, Kafka Education Odessa National Polytechnic University Software Engineering Master degree's degree 2015 – 2021 P.S. Please, don`t hesitate to write me, if you have any questions :)

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  • React Native
  • TypeScript
  • Python
  • Flutter
  • Mobile Development Framework
  • Progressive Web App
  • Web & Mobile Design Consultation
  • SQL
  • Ruby on Rails

Get started working with Sergey quickly with these predefined projects.

Get started working with Sergey quickly with these predefined projects.

You will get Node.js | Express | Next.js | MongoDB | SQL | AWS | Firebase | Back-End

From $150
3 days delivery

You will get Mobile, Web, Database, Server app architecture, documentation and design

From $100
1 day delivery

You will get React Native | Mobile Application | IOS | Android

From $1,200
15 days delivery

You will get React JS | React Developer | MERN Stack | Front-End Developer

From $150
3 days delivery