Senior React Developer

PROJECT INFORMATION:

Industry: Banking

Location: Hybrid work model with occasional office presence:

• Kraków area – ~5x/month
• Warsaw area – ~3x/month (Warsaw office)
• Other locations – 1x/month or 3x/quarter (flexible: e.g. 3 consecutive days) (Warszawa/Kraków)

Project language: Fluent English, Polish is also a must

Type of assignment: B2B

Project length: Long-term

Overview:

The role is part of the Business Services Digital team within a global banking and markets IT division, delivering IT solutions and support for business services.

Responsibilities:

• Maintain a delivery-oriented approach to developing applications and their supporting software and data infrastructure.
• Manage software releases and provide ongoing support for existing systems.
• Work independently and collaboratively to design, develop, test, and implement web-based applications.
• Promote and contribute to best development practices.
• Mentor team members by providing guidance and knowledge sharing.
• Deliver well-structured, maintainable, and fully tested systems within deadlines and budget.
• Follow internal risk-based project management and development methodologies.
• Drive productivity and quality improvement initiatives.
• Manage and coordinate software releases through to production.

Key Requirements:

• Proven experience in delivering web applications.
• Expertise in front-end development with a focus on rich user interfaces.
• Excellent knowledge of HTML5, CSS3, and CSS preprocessors (e.g., SASS, Less).
• Strong proficiency in React.JS, JavaScript, and TypeScript.
• Experience with front-end testing frameworks such as Jest and Testing Library React.
• Ability to create pixel-perfect UI based on design specifications.
• Experience designing responsive GUIs for both desktop and mobile platforms.
• Solid understanding of accessibility and cross-browser compatibility standards.
• Familiarity with data marshalling/de-marshalling using JSON and XML.

Nice to Have:

• Experience working with Git and IDEs such as IntelliJ or VSCode.
• Knowledge of responsive web design techniques.
• Familiarity with Node.js and Express.js.