UI frontend Developer

Job Title: UI frontend DeveloperLocation: Sanjose, CostaricaExperience: 10+ years
Job Description:

Job Description:
Experienced Senior Software Engineers with strong front-end development expertise to design, develop, and maintain modern web applications and APIs supporting Ninja Online pre-sales solutions. The ideal candidate will be passionate about scalable software, modern UI frameworks, cloud-native development, and Agile delivery methodologies.
Key Responsibilities
Develop and enhance responsive web applications using React, TypeScript, and modern JavaScript frameworks.Design and implement Single Page Applications (SPA) and Micro Frontend (MFE) architectures.Develop and maintain backend services and APIs using FastAPI, Python, and C#.Collaborate with Product Owners and Scrum teams to deliver user stories, epics, and backlog items.Participate in Agile ceremonies including Sprint Planning, Daily Standups, Reviews, and Retrospectives.Build scalable, secure, and maintainable software solutions.Contribute to CI/CD initiatives and DevOps best practices.Create technical documentation and support knowledge-sharing activities.Work closely with QA engineers to ensure product quality and reliability.Support ongoing innovation initiatives, including AI-enabled development practices where applicable.Mandatory skills:
JavaScript, React, TypeScriptHTML5, CSS3, Responsive UI DesignSingle Page Applications (SPA)Micro Frontends (MFE)Jotai State ManagementPythonGitHub and Git-based workflowsElasticSearchPostmanGrommet UI Framework
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