Passport.io provides payment operations as a service. With deep expertise in the payments industry and a commitment to solving complex business challenges, Passport.io empowers companies to streamline their financial operations.

It delivers the best in software and white-label support to make sure you can combat fraud, prevent and resolve costly chargebacks, increase your billings, build brand loyalty, and process your payments end-to-end with secure and easy-to-use technology.

Who Are We Looking For

We’re looking for a skilled, detail-oriented, and user-focused frontend developer who thrives in fast-paced environments and is passionate about creating intuitive, high-performance web interfaces. You should be proactive and curious — energized by solving UI/UX challenges, writing clean and efficient code, and delivering seamless user experiences that support a fast-growing fintech platform.

Honesty and Trust are core to who we are. We expect transparent and truthful communication from all our team members.

Learning and Curiosity are essential for growth here. You bring fresh ideas, creativity, and a desire to develop daily, absorbing knowledge from those around you.

Multilingual and Multilingual? Even better. You embrace international collaboration and thrive in global environments. Bonus points if you have cross-border experience or fluency in multiple languages.

Position Overview

As a Frontend Developer, you’ll play a key role in developing responsive, user-friendly web applications that deliver seamless experiences across devices. You’ll collaborate with backend developers and designers to translate UI/UX designs into functional, high-performance features. From optimizing speed and scalability to writing clean, maintainable code, you’ll help drive the evolution of our digital products while staying current with the latest frontend technologies and best practices.

Develop user-facing features with a focus on responsive and intuitive design.
Build efficient and reusable front-end systems to drive our web applications.
Collaborate with backend developers and UI/UX designers to improve usability.
Collaborate with UX/UI designers to implement design into functional web applications.
Optimize applications for maximum speed and scalability.
Collaborate with other team members and stakeholders.
Participate in code reviews and contribute to team and personal learning.
Stay up-to-date with emerging trends and technologies in front-end development.
Write well-documented, clean, and maintainable code.
Other tasks assigned.

Skills & Competencies Required

Proficiency in ReactJS and related libraries (e.g., Redux, React Router)
Advanced knowledge of JavaScript / TypeScript, including ES6+ features
Strong command of HTML5, CSS3, and responsive, pixel-perfect UI implementation
Experience working with RESTful APIs and handling asynchronous requests (e.g., AJAX)
Familiarity with modern authorization mechanisms like JSON Web Tokens (JWT)
Skilled in optimizing web applications for performance, accessibility, and scalability
Experience with CSS pre-processors (e.g., SASS, LESS) and cross-browser compatibility
Solid understanding of front-end build tools such as Vite, Rollup, Webpack, and Babel
Proficient with Git and version control workflows
Ability to write clean, efficient, and secure code that aligns with industry best practices
Understanding of SEO principles as they relate to front-end development
Familiarity with Node.js and PHP is a plus

Who Should Apply

Bachelor’s degree in Computer Science, Engineering, Information Technology, or any related field
2–4 years of professional experience in frontend development
Proven track record of delivering responsive, high-quality web applications
Comfortable working in fast-paced, cross-functional teams
Strong problem-solving skills and attention to visual and code-level detail
Experience working with JavaScript frameworks and modern front-end architecture
A passion for UI/UX, performance optimization, and keeping up with front-end trends
Fluency in English (C1/Advanced), both written and verbal
No restrictions on business travel

If you are eager to take your career to the next level in the payment industry, this is the opportunity for you. We offer:

Competitive compensation depending on experience and skills
Individual career path and growth opportunities
Work with an international team and gain in-depth knowledge about payments in different markets
Exposure to the fintech and gaming industries
Paid vacation and health insurance
Office-based role in Gotse Delchev Blvd. — surrounded by like-minded innovators

This role is the ideal opportunity for someone looking for new challenges that would allow them to make a noticeable, positive impact in the company while learning and adapting to our fast-paced scale-up environment.

As part of our growing team in Sofia, you will have a lot of opportunities to develop your career further with us. With future expansion plans, now is a great time to join us on our journey to change the way we pay.

Notes: Only shortlisted candidates will be contacted.