Middle Front-End Developer

19 Minutes ago • 3 Years +

Job Summary

Job Description

Growe is seeking a Middle Front-End Developer with 3+ years of React experience and 2+ years with TypeScript. The role involves developing and maintaining functionality, collaborating with backend teams, and ensuring code quality through reviews. Candidates should have strong knowledge of JavaScript asynchronous programming, React lifecycle, state management (Redux, Zustand, MobX), and CSS. Familiarity with CI/CD, unit testing (Jest/Vitest), SOLID principles, and a proactive approach to code improvement are essential.
Must have:
  • Develop and maintain existing functionality, ensuring backward compatibility across releases.
  • Collaborate with backend developers to integrate APIs and ensure seamless system operation.
  • Deliver completed tasks for testing and provide advisory support to QA engineers during the testing phase.
  • Participate in story analysis, break stories into sub-tasks, and estimate development time.
  • Identify areas for improvement and add them to the technical debt backlog.
  • Perform cross-reviews of merge requests to ensure code quality and adherence to standards.
  • 3+ years of professional experience in frontend development using React.
  • 2+ years of experience with TypeScript.
  • Experience with state management libraries such as Redux, Zustand, or MobX.
  • Strong understanding of JavaScript asynchronous programming (Promises, async/await, event loop).
  • Deep knowledge of the React component lifecycle, rendering process, and state management.
  • Proficiency in CSS (Flexbox, Grid, SCSS, CSS-in-JS).
  • Familiarity with CI/CD pipelines (GitLab CI, Azure, or similar).
  • Understanding of unit testing principles, experience using Jest or Vitest.
  • Solid grasp of SOLID principles and clean code practices.
  • Proactive attitude towards improving the existing codebase, enhancing developer experience and maintainability through refactoring and optimization.
Good to have:
  • Experience with Redux Toolkit.
  • 1+ year of experience with Material UI.
  • Organizational skills.
  • Attention to detail.
  • Openness to communication and the ability to improve processes through collaboration with different teams.

Job Details

##### Growe welcomes those who are excited to:

  • Develop and maintain existing functionality, ensuring backward compatibility across releases;
  • Collaborate with backend developers to integrate APIs and ensure seamless system operation;
  • Deliver completed tasks for testing and provide advisory support to QA engineers during the testing phase;
  • Participate in story analysis, break stories into sub-tasks, and estimate development time;
  • Identify areas for improvement and add them to the technical debt backlog;
  • Perform cross-reviews of merge requests to ensure code quality and adherence to standards.

##### We need your professional experience:

  • 3+ years of professional experience in frontend development using React;
  • 2+ years of experience with TypeScript;
  • Experience with state management libraries such as Redux, Zustand, or MobX;
  • Experience with Redux Toolkit - nice to have;
  • 1+ year of experience with Material UI - nice to have;
  • Strong understanding of JavaScript asynchronous programming (Promises, async/await, event loop);
  • Deep knowledge of the React component lifecycle, rendering process, and state management;
  • Proficiency in CSS (Flexbox, Grid, SCSS, CSS-in-JS);
  • Familiarity with CI/CD pipelines (GitLab CI, Azure, or similar);
  • Understanding of unit testing principles, experience using Jest or Vitest;
  • Solid grasp of SOLID principles and clean code practices;
  • Proactive attitude towards improving the existing codebase, enhancing developer experience and maintainability through refactoring and optimization.

##### We appreciate if you have those personal features:

  • Organizational skills;
  • Attention to detail;
  • Openness to communication and the ability to improve processes through collaboration with different teams.

##### We are seeking those who align with our core values:

  • GROWE TOGETHER: Our team is our main asset. We work together and support each other to achieve our common goals;
  • DRIVE RESULT OVER PROCESS: We set ambitious, clear, measurable goals in line with our strategy and driving Growe to success;
  • BE READY FOR CHANGE: We see challenges as opportunities to grow and evolve. We adapt today to win tomorrow.

Apply for this job

------------------

  • indicates a required field

First Name*

Last Name*

Email*

Phone

Resume/CV*

AttachAttach

Dropbox

Google Drive

Enter manuallyEnter manually

Accepted file types: pdf, doc, docx, txt, rtf

Cover Letter

AttachAttach

Dropbox

Google Drive

Enter manuallyEnter manually

Accepted file types: pdf, doc, docx, txt, rtf

---

Please add a link to your LinkedIn profile (if available).

What is your current location?*

What is your salary expectation in USD Gross (before taxes)?*

Do you have experience working in the gambling/betting industry?

Select...

What is your English proficiency level?*

Select...

Submit application

Similar Jobs

Looks like we're out of matches

Set up an alert and we'll send you similar jobs the moment they appear!

Similar Skill Jobs

Looks like we're out of matches

Set up an alert and we'll send you similar jobs the moment they appear!

Jobs in undefined

Looks like we're out of matches

Set up an alert and we'll send you similar jobs the moment they appear!

Similar Category Jobs

Looks like we're out of matches

Set up an alert and we'll send you similar jobs the moment they appear!

About The Company

Here at GROWE, we operate boldly in the iGaming and Entertainment industries, uniting brands worldwide and gathering expertise from diverse markets.

Warsaw, Masovian Voivodeship, Poland (On-Site)

Warsaw, Masovian Voivodeship, Poland (On-Site)

Warsaw, Masovian Voivodeship, Poland (On-Site)

Warsaw, Masovian Voivodeship, Poland (On-Site)

Warsaw, Masovian Voivodeship, Poland (Remote)

Warsaw, Masovian Voivodeship, Poland (On-Site)

View All Jobs

Get notified when new jobs are added by Growe

Level Up Your Career in Game Development!

Transform Your Passion into Profession with Our Comprehensive Courses for Aspiring Game Developers.

Job Common Plug