Fullstack JavaScript Developer

We are an IT company that creates products for a cleaner and safer internet: aAdGuard Ad Blocker, AdGuard VPN, and AdGuard DNS. For over 16 years, we’ve been protecting users from ads, tracking, phishing, and other online threats.

We’re currently looking for a Middle JavaScript Developer to join our browser extensions team and help us improve and develop our products.

What we’re looking for:

• 3+ years of commercial experience with JavaScript or TypeScript
  (experience with Bash and Go is a strong plus)
• English level B2 or higher (you’ll need it for team communication)
• Solid commercial experience developing browser extensions (React, MobX)
• Hands-on experience with the Node.js file system (e.g., fs module) for writing scripts or helper tools
• Good understanding of computer science fundamentals — algorithms and data structures
• Familiarity with asynchronous programming
• Confident working with Git and the command line in a Unix-like environment
• Understanding of network data transfer basics and the main HTTP methods in client-server communication

What you’ll do:

• Develop and maintain the business logic of browser extensions (TypeScript/JavaScript), including scripts that run both in the web page context (DOM) and in background pages (approximately 80% of tasks)
• Develop and maintain Node.js scripts for processing ad-blocking rules (text filters: parsing, filtering, sorting)
• Keep our libraries up to date, secure, and high-performing
• Develop new features and refactor existing systems
• Write tests and ensure high code quality
• Collaborate with other teams to integrate libraries into company products
• Continuously refactor and improve code efficiency and readability

What we offer:

• Flexible working hours and the option to work remotely from anywhere
• Relocation support to Cyprus with partial cost coverage
• Online language courses
• Training budget and compensation for professional development after probation
• A skilled team, minimal bureaucracy, and no micromanagement
• Competitive salary with growth opportunities
• Clear paths for both horizontal and vertical career development within the company