Middle/Senior Full-Stack Developer
New
S
Sigma SoftwareAdTech
Warszawa, Emilii Plater 53, Poznań, Zwierzyniecka 3, Kraków, Wadowicka 7, Warszawa, Country code: PLContractSenior
Salary not disclosed
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Job Details
- Languages
- Upper-Intermediate or higher English level
- Experience
- 4-5+ years
- Required Skills
- AWSJavascriptTypeScriptNest.jsReact
Requirements
- 4-5+ years of commercial software development experience with JavaScript and TypeScript
- 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
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
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