Roman K.

Roman K.

Rivne, Ukraine

Front End Developer

9 years of exp.


Profile Summary

A results-driven Senior Software Engineer with over 9 years of experience in designing and developing high-performance web applications and services in fast-paced, high-traffic environments. Adept at leading teams, mentoring junior developers, and enforcing best practices such as KISS, SOLID, and TDD. Skilled in building scalable, maintainable applications with a focus on microservices, cloud computing, and automation. Proficient in modern web technologies and committed to ensuring high availabi

Culture Profile

In workplace, I am known for . . .
  • efficient code optimizer
  • strict , but supportive mentor
I thrive in environments . . .
  • where innovation and learning are encouraged
  • with active team dynamics
I struggle in environments . . .
  • that are overly rigid and limit creativity
  • where communication is unclear

Work Experience

Trinetix

Senior Front-End Developer
  • Nov, 2023 - Present
  • Ukraine
  • Led front-end development for enterprise-level projects using React, TypeScript, and PHP, focusing on reusable and maintainable code design.
  • Enhanced web application performance by optimizing UI rendering, lazy loading assets, and integrating efficient caching mechanisms
  • Collaborated with backend teams working in PHP to ensure seamless API integration and consistent data flow.
  • Mentored junior developers, established code review standards, and promoted clean code practices

Skills

Vue.jsGitHubRESTful APIsAngularExpress.jsNext.jsNode.jsReactPHPSASSReduxCSSFigmaGraphQLMochaSketchBabelCypressNgRxContext APIWebSocketJestJasmineNuxt.js

Industries

Software

DianApps

Lead Front-End Engineer
  • Jun, 2022 - Oct, 2023
  • United States
  • Developed dynamic user interfaces using Angular, RxJS, and PHP, improving overall application responsiveness
  • Implemented RESTful APIs and integrated backend services built with PHP, facilitating efficient data communication
  • Improved code quality and maintainability by implementing modular architectures and leveraging TypeScript.
  • Worked with designers to transform mockups into pixel-perfect web interfaces, ensuring high user engagement

Skills

JavaScriptVue.jsMongoDbMySQLExpress.jsNext.jsReactPHPNuxt.js

Industries

Software

BJIT Group

Full-stack developer
  • Mar, 2021 - Apr, 2022
  • Netherlands
  • Developed full-stack web applications using Vue.js for the front end and PHP for backend logic and database interactions
  • Migrated monolithic applications to a microservices architecture, utilizing PHP for backend services
  • Ensured web accessibility standards and optimized performance, leading to a better user experience and lower bounce rates
  • Managed data synchronization between the front end and PHP backend using WebSocket and real-time APIs

Levonline

Frontend Developer Intern
  • Apr, 2019 - Jan, 2021
  • Sweden
  • Built and maintained web applications using React, Next.js, and PHP, focusing on scalable and secure architecture
  • Developed RESTful APIs with PHP and integrated them with front-end frameworks, ensuring seamless data flow
  • Conducted automated testing with Jest and PHPUnit, ensuring code reliability and maintaining high-quality standards

Education

Bachelor's degree
  • Computer Engineering
  • National Technical University of Ukraine, Ukraine
  • 2014

All Skills

  • Languages

    • JavaScript | 9 yrs
    • PHP | 8 yrs
    • Rust | 7 yrs
    • SASS | 9 yrs
  • Libraries

    • React.js | 9 yrs
    • Redux | 9 yrs
    • Babel | 9 yrs
    • NgRx | 5 yrs
    • WebSocket | 9 yrs
    • Three.js | 5 yrs
  • Frameworks

    • Vue.js | 8 yrs
    • Angular | 9 yrs
    • Express.js | 8 yrs
    • Next.js | 9 yrs
    • Node.js | 8 yrs
    • React | 9 yrs
    • Context API | 3 yrs
    • Jasmine | 5 yrs
    • Nuxt.js | 8 yrs
  • Tools

    • GitHub | 9 yrs
    • CSS | 9 yrs
    • Figma | 9 yrs
    • Mocha | 6 yrs
    • Sketch | 6 yrs
    • Cypress | 5 yrs
    • Jest | 5 yrs
  • Databases

    • MongoDb | 9 yrs
    • MySQL | 9 yrs
  • APIs

    • RESTful APIs | 6 yrs
    • GraphQL | 6 yrs
  • Cloud

    • Amazon Web Services (AWS) | 3 yrs
    • Google Cloud | 3 yrs
    • Microsoft Azure portal | 3 yrs
  • Paradigms

    • DevOps | 4 yrs
    • Full-stack | 9 yrs
  • Others

    • Web Development | 9 yrs
  • Blockchain

    • Blockchain Development | 6 yrs