Senior Frontend Engineer

The company and our mission:

Zartis is a digital solutions provider working across technology strategy, software engineering, and product development.

We partner with firms across financial services, MedTech, media, logistics technology, renewable energy, EdTech, e-commerce, and more. Our engineering hubs in EMEA and LATAM are full of talented professionals delivering business success and digital improvement across application development, software architecture, CI/CD, business intelligence, QA automation, and new technology integrations.

We are looking for a

Senior Frontend Engineer to work on a project in the fintech industry.

The project:

Our teammates are talented people that come from a variety of backgrounds. We’re committed to building an inclusive culture based on trust and innovation.

You will be part of a distributed team developing new technologies to solve real business problems. A React Developer builds and maintains dynamic, responsive user interfaces using the React.js library. This role involves developing reusable components, managing application state, and integrating front-end features with backend systems to deliver seamless and performant web experiences.

We are looking for someone with good communication skills, ideally with experience making decisions, being proactive, and with good attention to detail.

What you will do:

- Develop and maintain scalable, reusable front-end components using React

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Translate UI/UX designs into responsive, interactive web interfaces

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Manage application state using tools like Redux and Context API

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Integrate front-end components with backend APIs

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Optimize application performance, load times, and responsiveness

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Ensure cross-browser compatibility and accessibility standards

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Write clean, well-documented, and maintainable code

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Participate in code reviews, testing, and debugging

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Contribute to creating SDKs for internal and public use

What you will bring:

- You’re a front-end developer with strong hands-on experience in React, passionate about building fast, accessible, and user-focused web applications.

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You have a proven ability to turn UI/UX designs into responsive, maintainable interfaces and work effectively as part of a collaborative engineering team.

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Solid experience with React.js and modern JavaScript (ES6+), with a strong grasp of component-based architecture and hooks.

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Experience managing application state using Redux, Context API

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Familiarity with integrating APIs (REST) and handling asynchronous data flows.

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Ability to write clean, reusable, and well-documented code, with a focus on performance and scalability

- Strong understanding of responsive design, browser compatibility, and accessibility standards

- Experience with version control systems like Git and working in agile development environments

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Comfort with participating in code reviews, testing, and debugging in a team-based setting

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Familiarity with creating SDKs or reusable packages is a plus

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A collaborative mindset and clear communication skills, with a willingness to learn and contribute to team success

What we offer:

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100%Remote Work

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WFH allowance: Monthly payment as financial support for remote working.

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Career Growth: We have established a career development program accessible for all employees with a 360º feedback that will help us to guide you in your career progression.

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Training: For Tech training at Zartis, you have time allocated during the week at your disposal. You can request from a variety of options, such as online courses (from Pluralsight and Educative.io, for example), English classes, books, conferences, and events.

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Mentoring Program: You can become a mentor in Zartis, or you can receive mentorship, or both.

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Zartis Wellbeing Hub (Kara Connect): A platform that provides sessions with a range of specialists, including mental health professionals, nutritionists, physiotherapists, fitness coaches, and webinars with such professionals as well.

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Multicultural working environment: We organize tech events, webinars, parties, and activities to do online team-building games and contests. Apply to this Job