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Expert Front End Engineer for Seeking Alpha

Dnipro, Kharkiv, Kyiv, Lviv, Odessa, Vinnytsia, Ukraine

JavaScript vacancies


On behalf of Seeking Alpha, Ciklum is lookng for Expert Front End Engineer to join our team on a full-time basis.



  • Grow and maintain technical excellence of modern cross-platform responsible financial SPA
  • Play a key role in cross-team technical decisions
  • Participate in design and planning discussions, contribute architecture ideas
  • Develop and test new user-facing features
  • Write highly scalable, reusable and testable code
  • Ensure the technical feasibility of UI/UX design
  • Optimize application for maximum speed and performance


  • 5+ years of experience with Javascript
  • 3+ years of front-end development experience in building large, complex, highly scalable React-based single page web applications
  • Solid software engineering fundamentals, including knowledge of algorithms and data structures
  • Expert level hands on experience and understanding of React.js and its core principles. Proficiency in building reusable components and modules. Experience with popular React.js workflows (such as Flux or Redux, CSS-in-JS)
  • Knowledge and understanding of client-side architecture best practices
  • Competent JavaScript programmer who doesn't need to rely on libraries to accomplish innovative interactions
  • Experience with CSS3 and LESS/SASS (ability to write mixings, partials, use source maps, etc). Deep understanding of Mobile-first Responsive design. Experience with Twitter Bootstrap or Foundation Framework
  • Understanding of the interplay between JavaScript and HTML & CSS, with a focus on performance. Strong proficiency in JavaScript / ES6, including DOM manipulation and the JavaScript object model. Good understanding of browser rendering behavior. Familiarity with newer specifications of ECMAScript
  • Experience with common front-end development tools such as Babel, Webpack, NPM, etc
  • Possess and understanding of all major browsers and the special considerations required for all various quirks. Knowledge of browser internals like Javascript engines, native DOM, Event APIs and ways to tune code for the best performance
  • Deep understanding of the HTTP protocol, browser networking
  • Knowledge of Agile principles, open-source ecosystem


  • Functional programming experience
  • You've built and delivered an app on Amazon AWS, Microsoft Azure or Google Cloud Platform
  • Experience with PWAs, Service Workers and client-side caching
  • Experience in web standards, semantic web, accessibility and SEO and the interplay between them
  • Having a Github portfolio or link to open source work.

What's in it for you

  • Career growth opportunities
  • Realization of your innovative ideas in building new Ciklum Solutions and Services
  • Friendly collaborative teams and enjoyable working environment
  • Professional skills development and training programs
  • Variety of knowledge sharing, training and self-development opportunities
  • State of the art, cool, centrally located offices with warm atmosphere which creates really good working conditions

Your dream job isn’t here? Let’s stay in touch! We’ll inform you about the best opportunities.


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