Strong Middle/Senior Full Stack Developer (Java+Angular)
Sigma Software- Location
- Warsaw, Masovian Voivodeship, Poland
- Workplace
- Remote
- Employment
- Full Time
- Salary
- —
Posted 10d ago
- 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
WILL BE A PLUS
- AI-native development experience
- Experience using AI-powered development tools such as Claude or Codex
- Experience with Jenkins
- Experience with Terraform
- Experience working with complex enterprise platforms
- Experience in AdTech, MarTech, or media-related domains
PERSONAL PROFILE
- Proactive and ownership-driven mindset
- Strong problem-solving orientation
- Ability to work independently in a distributed team environment
- Focus on quality and continuous improvement
- Willingness to participate in technical discussions and contribute ideas
- Strong communication and collaboration skills
Skills
- Java
- Spring
- Angular
- AWS
- Anthropic Claude
- Codex
- Jenkins
- Terraform
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