Strong Middle / Senior Full Stack Developer (TypeScript / React)

Join a product-focused engineering team developing a large-scale AdTech platform used for managing and optimizing digital advertising campaigns across multiple channels. The customer is an international company operating in the digital advertising and AdTech industry, developing enterprise-grade technology solutions to help advertisers and media organizations manage, optimize, and scale digital advertising campaigns. The project is a large-scale advertising campaign management platform covering the full lifecycle of digital campaigns, including campaign creation, line-item management, creatives handling, forecasting, SLA tracking, and integrations with external advertising and media services. The platform supports advanced media workflows such as video transcoding and image validation. The engineering team builds scalable and reliable enterprise solutions with sophisticated business logic and multiple integrations while continuously improving performance, maintainability, and operational efficiency.

• 4-5+ years of commercial software development experience with JavaScript and TypeScript, primarily focused 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 proficiency

Nice to have:

• AI-native development experience
• Familiarity with AI-powered development tools such as Claude and Codex
• Experience with Jenkins
• Experience with Terraform
• Experience working with complex or enterprise platforms

• 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