Fullstack Backend Developer (AdTech)

TL;DR

Fullstack Backend Developer (Java/Vue 3): Developing a new audience-targeting system based on Live TV and streaming services with an accent on backend architecture and intuitive user interfaces. Focus on implementing RESTful APIs, refactoring for system stability, and designing scalable web system components.

Location: Must be based in Poland (Warsaw), Serbia, or Romania

Company

A leading AdTech company providing data-driven advertising solutions that help brands and publishers engage audiences across multiple digital channels.

What you will do

• Own the full development cycle of core features from planning to implementation.
• Build and integrate responsive user interfaces from scratch.
• Develop a new audience-targeting system for Live TV and streaming services.
• Collaborate on high-level design and architecture decisions with cross-functional teams.
• Refactor system components to improve overall performance and stability.
• Provide technical leadership and mentorship to other developers.

Requirements

• 6+ years of professional software development experience.
• 3+ years of experience with Java and Spring Boot.
• Proven track record in designing and implementing web system architecture.
• Proficiency in HTML, CSS, JavaScript, and RESTful APIs.
• Experience with relational and non-relational databases and Linux environments.
• English: Fluency in spoken and written English is required

Nice to have

• Experience with modern UI frameworks such as ReactJS, Vue, or Angular.
• BSc in Computer Science or an equivalent degree.

Culture & Benefits

• Fast-paced, technology-driven environment valuing innovation and ownership.
• Opportunity to work on large-scale products processing vast amounts of data.
• Focus on utilizing cutting-edge technologies for high-performance solutions.
• Collaborative team culture with global reach.