Senior Frontend Developer (React)

Spyrosoft Ltd; Wrocław; Hybrid; PLN 180,000 - 240,000; Full time

Job summary

Spyrosoft Ltd in Wroclaw is seeking a Senior React Developer to join a team building modern, user-centric web applications for international clients. You will collaborate 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,

Qualifications

• 5+ years of commercial frontend web development experience.
• Strong React expertise and extensive experience with the React ecosystem.
• Advanced proficiency in TypeScript and modern JavaScript (ES6+).
• Strong knowledge of HTML5 and CSS3.
• Hands-on with styling solutions: 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 using Git and modern development workflows.
• Familiarity with CI/CD pipelines and deployment processes.
• Experience using Jira and Confluence.
• Strong analytical thinking and problem-solving skills.
• Ability to work independently and manage priorities.
• Very good English skills (B2/C1).

Responsibilities

• Develop modern web interfaces using React.
• Build user-centric web applications with emphasis on usability and performance.
• Translate UX/UI designs into high-quality, maintainable code.
• Design and implement responsive, mobile-first user interfaces per RWD principles.
• Develop and maintain automated unit, integration, interface, and E2E tests.
• Contribute to CI/CD processes and GitLab workflows.
• Conduct code reviews and promote high engineering standards.
• Ensure compliance with architectural guidelines and coding standards.
• Participate in technical discussions and architectural decisions.
• Collaborate with cross-functional teams and stakeholders.
• Communicate progress clearly to clients and partners.

Skills

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

Tools

GitLab

Jira

Confluence

CI/CD pipelines

Job 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 experiencedSenior React Developerto 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