Front-End Developer

Mid Level Fulltime

We are looking for a Front-End Developer with an analytical mind and advanced knowledge of HTML, CSS, and JavaScript.

Minimum requirements

  • Bachelor’s degree in computer science or a related field;
  • Advanced level of English;
  • Advanced knowledge of web standards and technologies: HTML, CSS, JavaScript;
  • Good knowledge of JavaScript-based application frameworks and Web APIs.

Preferred requirements

  • Basic knowledge of OOP;
  • Knowledge of responsive/mobile design;
  • Knowledge of cross-browser development;
  • Testing and debugging skills.

Job description

As a Front End Developer, you will be responsible for developing top-notch user interfaces and websites and optimizing them for performance and interaction.

You will closely work with our UI/UX designers to implement our internal projects and platforms and will be responsible for delivering and launching websites on time and according to the specifications of the project manager.


  • Optimize websites for high traffic, maximum speed, and scalability;
  • Develop new user-facing features;
  • Build reusable code and libraries for future use;
  • Ensure the technical feasibility of UI/UX designs;
  • Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review;
  • Augmenting page functionalities with JavaScript;
  • Modifying existing designs to improve user acceptance through A/B and multivariate testing;
  • Collaborate with the team to make the product more intuitive.


  • Flexible Work Schedule - You can start your day at any hour between 8:00 and 10:00.
  • Career Development Courses - Our company can grant you access to various professional development courses & platforms.
  • Meal Vouchers - Shop for groceries, eat out, or order take-out using your Up meal vouchers.
  • 7card Membership - Work out, go for a swim, or take dance classes through the 7card membership program.
  • Private Health Insurance - Catch up on your medical appointments and get regular check-ups through our medical insurance.
  • Extra Vacation Days - Enjoy one additional vacation day for every year you spend at Sevio.

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