UI Frontend Developer

About the role

We are looking for an experienced senior software engineer with strong front‑end development expertise to design, develop and maintain modern web applications and APIs for Ninja Online pre‑sales solutions. The role focuses on building scalable, cloud‑native UI components using the latest frameworks and Agile delivery practices.

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 with FastAPI, Python and C#.
• Collaborate with product owners and Scrum teams to deliver user stories, epics and backlog items.
• Participate in Agile ceremonies such as sprint planning, daily stand‑ups, 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 innovation initiatives, including AI‑enabled development practices where applicable.

Required profile

• 10+ years of experience in software engineering, preferably in senior roles.
• Proven expertise in front‑end development with modern UI frameworks.

Required skills

• JavaScript
• React
• TypeScript
• HTML5
• CSS3
• Responsive UI Design
• Single Page Applications (SPA)
• Micro Frontends (MFE)
• Jotai State Management
• Python
• FastAPI
• C#
• GitHub and Git‑based workflows
• ElasticSearch
• Postman
• Grommet UI Framework