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September 9, 2026
Strong Middle/Senior Full-Stack Developer (TypeScript+React)
Senior • Remote
Warsaw, Poland
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Quick Facts
Build scalable Full Stack applications for an enterprise AdTech campaign management platform covering the full lifecycle of digital campaigns.
Description
Join a product-focused engineering team developing a large-scale AdTech platform for managing and optimizing digital advertising campaigns across multiple channels. The project includes campaign creation and configuration, line-item management, creatives handling, forecasting, SLA tracking, integrations with external advertising and media services, and advanced media workflows such as video transcoding and image validation. The engineering team focuses on scalable, reliable enterprise solutions with sophisticated business logic and multiple integrations.
Responsibilities
- Design, develop, and maintain scalable Full Stack applications using JavaScript, TypeScript, NestJS, and React.
- Implement and support complex business logic related to digital advertising campaign management.
- Participate in technical discussions, architecture decisions, and solution design activities.
- Collaborate closely with developers, Architects, QA engineers, and Project Managers.
- Improve application performance, scalability, reliability, and maintainability.
- Develop clean, maintainable, and well-tested code following software engineering best practices.
- Identify technical challenges proactively and drive solutions independently.
- Contribute to continuous improvements in development processes and technical standards.
Requirements
- 4-5+ years of commercial software development experience with JavaScript and TypeScript (primary focus on back-end development).
- Strong back-end development experience with NestJS.
- Solid front-end development experience with ReactJS.
- Hands-on experience with AWS cloud services.
- Good understanding of scalable system architecture and software engineering best practices.
- Experience working with enterprise-level or high-load applications.
- Strong problem-solving and analytical skills.
- Ability to work independently and take ownership of technical solutions.
- Good communication and collaboration skills.
- Upper-Intermediate or higher English level.
Benefits
- Opportunity to work on technically challenging products.
- Collaborate with experienced engineering teams.
- Contribute to scalable solutions used in a dynamic digital advertising domain.
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