Strong Middle/Senior Full Stack Developer at Sigma

About The Role

Design, develop, and maintain scalable Full Stack solutions using Java, Spring, and Angular
Develop and support complex business logic related to advertising campaign management
Participate in architecture discussions and contribute to technical solution design
Build reliable, maintainable, and high-performance enterprise applications
Improve system scalability, reliability, and overall platform performance
Integrate with external advertising and media-related services
Write clean, maintainable, and well-tested code following engineering best practices
Collaborate with developers, Architects, QA engineers, and Project Managers
Take ownership of technical challenges and proactively drive solutions
Contribute to continuous improvement of development processes and engineering standards
5+ years of commercial software development experience
Strong hands-on experience with Java and Spring Framework
Strong practical experience with Angular
Experience building scalable enterprise-level applications
Experience with AWS cloud services
Good understanding of software engineering principles and system design
Experience working with REST APIs and integrations
Ability to work independently and proactively solve technical challenges
Strong analytical and problem-solving skills
Experience writing maintainable and testable code
Good communication and collaboration skills
Upper-Intermediate or higher level of English