Senior Developer @

2 weeks ago

Kraków Poznań Wrocław, Czech Republic Strefa IT Kandydata Full time

Core technical competencies the candidate must demonstrate

  • React.js (4 - 6 years): Deep understanding of React fundamentals, including hooks, context API, component lifecycle, and performance optimization
  • JavaScript/TypeScript: Strong proficiency in modern JavaScript (ES6+) and TypeScript for type-safe development
  • HTML5/CSS3/SASS/LESS: Ability to build responsive, accessible, and pixel-perfect UIs
  • State Management: Experience with Redux, Zustand, or similar libraries for managing complex application state
  • Testing: Familiarity with frontend testing frameworks like Jest, React Testing Library, or Cypress
  • Component Libraries: Experience with design systems and UI libraries (e.g., Material UI, Ant Design)
  • Code Quality: Adherence to clean code principles, linting, and code review best practices

Infrastructure & Architecture Skills

  • Micro-Frontend Architecture: Hands-on experience designing or contributing to micro-frontend systems using tools like Module Federation or Webpack
  • Understanding of how frontend apps interact with microservices-based backends (REST, GraphQL, gRPC)
  • CI/CD Pipelines: Familiarity with automated build and deployment pipelines (e.g., GitHub Actions, Jenkins, Azure DevOps)
  • Containerization: Basic knowledge of Docker and how frontend apps are containerized and deployed
  • Monitoring & Logging: Awareness of frontend observability tools (e.g., Sentry, Datadog, LogRocket)

Agile & Soft Skills 

  • Agile Methodologies: Experience working in Scrum or Kanban teams, participating in ceremonies like stand-ups, sprint planning, and retrospectives
  • Communication: Fluent in English, both written and spoken, with the ability to explain technical concepts to non-technical stakeholders
  • Collaboration: Proven ability to work cross-functionally with backend developers, designers, and product managers
  • Problem Solving: Strong analytical skills and a proactive approach to identifying and resolving issues
  • Mentorship: Willingness to support junior developers and contribute to team knowledge sharing

B2B contract until the end of 2025.

According to Clients standards, 40% work from office (~about 2 days per week work from office)

,[You will be working with Poland located full-stack team of 10 engineers (Front/Back/QA/SM), The goal is to migrate old platform used to govern 2000+ models used on Client's Side to new technology to meet regulatory requirements] Requirements: React.JS, JavaScript, TypeScript, HTML5, CSS3, SaaS, Less, React, Redux, Zustand, Cypress, Jest, React Testing Library, Docker, Azure, Jenkins, Sentry, REST, GraphQL

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