Senior Frontend Developer (React)
Spyrosoft Krakow, Lesser Poland Voivodeship, Poland · PLN 229K–PLN 312K/yr
IT Services and IT Consulting · 1,001-5,000 employees
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About the role
Develop modern, user-centric web interfaces using React while ensuring high performance and accessibility. Collaborate with cross-functional teams to translate UX/UI designs into maintainable code and contribute to CI/CD processes.
What they look for
Requirements
Requires at least 5 years of commercial frontend development experience with strong proficiency in React, TypeScript, and modern JavaScript. Candidates must possess solid knowledge of software architecture, testing methodologies, and professional English communication skills.
Full description
Tech Stack:
- React
- TypeScript
- JavaScript (ES6+)
- HTML5
- CSS3
- Styled-components
- Tailwind CSS
- SASS
- REST APIs
- Git
- GitLab
- CI/CD
- Jira
- Confluence
- Unit Testing
- Integration Testing
- E2E Testing
Required Qualifications:
- At least 5 years of commercial experience in frontend web development.
- Strong practical experience with React and the broader React ecosystem.
- Solid understanding of rendering optimization techniques and state management solutions.
- Advanced proficiency in TypeScript and modern JavaScript (ES6+).
- Strong knowledge of HTML5 and CSS3.
- Hands-on experience with styling solutions such as Styled-components, Tailwind CSS, and SASS.
- Proven experience building responsive, mobile-first web applications.
- Experience integrating frontend applications with RESTful APIs.
- Good understanding of software architecture principles and design patterns.
- Experience working with Git and modern development workflows.
- Familiarity with CI/CD pipelines and deployment processes.
- Experience using collaboration tools such as Jira and Confluence.
- Strong analytical thinking and problem-solving skills.
- Ability to work independently and effectively manage priorities.
- Very good English skills (B2/C1), both written and spoken.
Nice to Have:
- Experienced in using AI tools in day-to-day workflow
Project Description:
We are looking for an experienced Senior React Developer to join a team responsible for delivering modern, user-centric web applications for international clients. In this role, you will collaborate closely with UX/UI Designers, Product Owners, QA Engineers, DevOps Specialists, Architects, and other development teams to create scalable, high-performance digital solutions.
You will have a real impact on technical decisions, software architecture, and development standards while working in an Agile environment focused on quality, innovation, and continuous improvement.
Scope of Services:
- Develop modern web interfaces using React.
- Build user-centric web applications with a strong focus on usability, accessibility, and performance.
- Translate UX/UI specifications and designs into high-quality, maintainable code.
- Design and implement responsive, mobile-first user interfaces following Responsive Web Design (RWD) principles.
- Develop and maintain automated unit, integration, interface, and end-to-end (E2E) tests.
- Contribute to CI/CD processes, GitLab workflows, and deployment automation initiatives.
- Conduct code reviews and promote high engineering standards across the team.
- Ensure compliance with architectural guidelines, coding standards, and best practices.
- Actively participate in technical discussions, architectural decisions, and implementation planning.
- Collaborate effectively with cross-functional teams and stakeholders.
- Communicate technical concepts and project progress clearly to clients and business partners
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