Senior Full Stack Developer

EBRAND; Białystok; On-site; PLN 180,000 - 260,000; Full time

Job summary

EBRAND in Białystok is seeking a Senior Full Stack Developer to help build automation systems that keep our detection technology ahead of a changing web. You will design, develop, and maintain browser-based solutions and collaborate with Backend, DevOps, and Product teams.

You bring 4+ years of commercial software development, strong JavaScript/TypeScript, PHP and Python, and hands-on experience with Playwright, Puppeteer, or Selenium.

Qualifications

• 4+ years of commercial software development experience.
• Proficient in JavaScript/TypeScript; HTML/CSS.
• Experience with Playwright, Puppeteer or Selenium.
• Knowledge of PHP and Python.
• Strong English communication.
• Experience with Git and Linux environments.
• Ability to write clean, maintainable code.
• Interest in browser automation.

Responsibilities

• Design, develop, and maintain Web Coding solutions.
• Build advanced browser-based automation systems.
• Analyze modern web applications and adapt to changes on target websites.
• Develop tools for collecting, processing, and analyzing data from publicly available online sources.
• Continuously improve the performance, reliability, and maintainability of existing solutions.
• Investigate and resolve complex technical challenges related to web automation.
• Collaborate closely with Backend, DevOps, and Product teams to deliver new platform capabilities.

Skills

JavaScript/TypeScript

PHP

Python

Playwright/Puppeteer/Selenium

HTML/CSS/Modern web apps

Git/Linux environments

English communication

Analytical problem-solving

Tools

Playwright

Puppeteer

Selenium

Node.js

Docker

Job description

Senior Full Stack Developer (Web Automation) – EBRAND

Location: Białystok | Type: Full-time

EBRAND is a global leader in online brand protection, helping businesses detect and shut down counterfeits, fraud, and IP infringements across the web. We're growing our engineering team and looking for a Senior Full Stack Developer to help build the automation systems that keep our detection technology ahead of an ever-changing web.

Responsibilities

• Design, develop, and maintain Web Coding solutions.
• Build advanced browser-based automation systems.
• Analyze modern web applications and implement robust solutions that adapt to changes in target websites.
• Develop tools for collecting, processing, and analyzing data from publicly available online sources.
• Continuously improve the performance, reliability, and maintainability of existing solutions.
• Investigate and resolve complex technical challenges related to web automation.
• Collaborate closely with Backend, DevOps, and Product teams to deliver new platform capabilities.

Requirements

• Vibe coding with Claude
• Knowledge of PHP and Python.
• 4+ years of commercial software development experience.
• Strong proficiency in JavaScript or TypeScript.
• Hands‑on experience with Playwright, Puppeteer, or Selenium.
• Solid understanding of HTML, CSS, JavaScript, and modern web applications.
• Good knowledge of HTTP, REST APIs, and browser developer tools (Chrome DevTools).
• Experience building browser automation and working with dynamic websites.
• Strong analytical and problem‑solving skills with the ability to understand complex web applications.
• Experience with Git and Linux environments.
• Ability to work independently and write clean, maintainable code.
• Good command of written and spoken English.

Nice to have

• Experience with Node.js.
• Familiarity with Docker.
• Experience with browser fingerprinting, proxies, or optimization of browser automation.
• Experience working on projects involving a large variety of web platforms.