We are looking for a Senior Front-End Developer to join our team and take ownership of building and maintaining high-quality web applications. This role focuses on modern JavaScript development, with an emphasis on performance, scalability, and clean architecture.

You will work on evolving an existing codebase, improving reliability, resolving issues, and delivering new features that integrate with modern APIs and services.

Responsibilities

Develop, maintain, and optimize front-end applications and shared UI systems using React, TypeScript/JavaScript, and modern browser APIs.
Build scalable, reusable, high-performance components for a shared library used across multiple products and teams.
Ensure accessibility compliance (WCAG, ARIA) and support inclusive user experiences.
Design and implement composable APIs, theming, and extensible architectures for UI components.
Collaborate with Product, Design, and Engineering to translate design systems into robust, accessible components.
Debug and resolve complex issues (rendering, state, performance, accessibility, cross-browser) while improving consistency, usability, and maintainability.
Write and maintain tests, apply best practices in code quality and documentation, and contribute to architecture, standards, and development workflows (CI/CD, tooling).

Qualifications

5+ years of front-end development experience, with strong expertise in React and modern JavaScript (ES6+).
Proven experience building and maintaining reusable component libraries or design system infrastructure.
Deep understanding of HTML, CSS, browser internals, and modern front-end architecture, including React concepts (hooks, composition, state management, rendering performance).
Hands-on experience implementing accessible UI components, with knowledge of WCAG, WAI-ARIA, semantic HTML, keyboard navigation, and focus management.
Experience working with APIs, managing complex client-side data flows, and solid understanding of asynchronous and event-driven programming.
Experience with modern development tools (build systems, linters, testing frameworks, documentation tools) and working in large, evolving, or legacy codebases within Agile/Scrum environments.
Strong ownership mindset, problem-solving skills, attention to detail, and ability to collaborate effectively across product, design, and engineering teams.

Nice to have

Experience with accessibility testing tools and practices.
Experience with Storybook or similar tools.
Experience with legacy frameworks (e.g., Backbone.js).
Basic backend knowledge (APIs, microservices).
Familiarity with cloud platforms (AWS, GCP).

Additional Information

We offer:

Culture of Relentless Performance: join an unstoppable technology development team with a 99% project success rate and more than 30% year-over-year revenue growth.
Competitive Pay and Benefits: enjoy a comprehensive compensation and benefits package, including health insurance, language courses, and a relocation program.
Work From Anywhere Culture: make the most of the flexibility that comes with remote work.
Growth Mindset: reap the benefits of a range of professional development opportunities, including certification programs, mentorship and talent investment programs, internal mobility and internship opportunities.
Global Impact: collaborate on impactful projects for top global clients and shape the future of industries.
Welcoming Multicultural Environment: be a part of a dynamic, global team and thrive in an inclusive and supportive work environment with open communication and regular team-building company social events.
Social Sustainability Values: join our sustainable business practices focused on five pillars, including IT education, community empowerment, fair operating practices, environmental sustainability, and gender equality.

*Miratech is an equal opportunity employer and does not discriminate against any employee or applicant for employment on the basis of race, color, religion, sex, national origin, age, disability, veteran status, sexual orientation, gender identity, or any other protected status under applicable law.