Web3 React Jobs in Bulgaria

Building the Future of Crypto 

Our Krakenites are a world-class team with crypto conviction, united by our desire to discover and unlock the potential of crypto and blockchain technology.

What makes us different?

Kraken is a mission-focused company rooted in crypto values. As a Krakenite, you’ll join us on our mission to accelerate the global adoption of crypto, so that everyone can achieve financial freedom and inclusion. For over a decade, Kraken’s focus on our mission and crypto ethos has attracted many of the most talented crypto experts in the world.

Before you apply, please read the Kraken Culture page to learn more about our internal culture, values, and mission. We also expect candidates to familiarize themselves with the Kraken app. Learn how to create a Kraken account here.

As a fully remote company, we have Krakenites in 70+ countries who speak over 50 languages. Krakenites are industry pioneers who develop premium crypto products for experienced traders, institutions, and newcomers to the space. Kraken is committed to industry-leading security, crypto education, and world-class client support through our products like Kraken Pro, Desktop, Wallet, and Kraken Futures.

Become a Krakenite and build the future of crypto!

Proof of work

The team

We are currently seeking an experienced Senior Software Engineer to join our growing Payments & Blockchain team to be focused on our payments systems. The Payments & Blockchain team is responsible for the first and last mile of every dollar (digital or fiat) that goes in our out of Kraken.

Join our Payments team to help integrate Kraken’s systems with an ever-expanding universe of payment providers.

As a member of this team, your focus is on protecting client funds. You will be responsible for building systems that communicate with various blockchains to enable the timely processing of client transactions, while also ensuring the safety and security of all funds on the exchange.

The opportunity

• Design, develop, and maintain high-quality payment processing systems using React.js and other relevant technologies

• Build and refine seamless transaction experiences that optimize fund transfers for speed, security, and reliability

• Ensure an efficient and intuitive onboarding experience for users interacting with payment systems, reducing friction and improving trust

• Develop innovative features that enhance engagement, retention, and loyalty within the payments ecosystem

• Set the standard for high-quality, secure code and lead the development of complex financial software systems

• Influence technical decisions, contribute to strategy discussions, and shape product/domain decisions with a deep understanding of financial systems and security best practices

• Mentor engineers, foster a culture of technical excellence, and drive process improvements in financial software development

• Design and implement scalable, maintainable, and fault-tolerant financial systems, ensuring compliance and security best practices

Skills you should HODL

• 6+ years of experience in software development, with a focus on web and mobile applications

• Deep understanding of JavaScript/TypeScript and proficiency with React Native frameworks

• Strong experience of API design, security, and performance optimization

• Experience with Next.js and WebSockets

• Experience with frontend testing frameworks

• Familiarity with modern front-end build pipelines and tooling

• Strong understanding of UI/UX best practices and principles

• Experience within a large technology organization or fast growing startup

• Hands-on experience in consumer payments, crypto or fintech mobile applications

• Strong written and verbal communication skills in English

• Available in EU afternoons

Nice to haves

• Familiarity with native mobile app development (iOS/Android)

• Knowledge of the cryptocurrency industry and blockchain technology

Unless a specific application deadline is stated in the job posting, applications are accepted on an ongoing basis.

Please note, applicants are permitted to redact or remove information on their resume that identifies age, date of birth, or dates of attendance at or graduation from an educational institution.

We consider qualified applicants with criminal histories for employment on our team, assessing candidates in a manner consistent with the requirements of the San Francisco Fair Chance Ordinance.

Kraken is powered by people from around the world and we celebrate all Krakenites for their diverse talents, backgrounds, contributions and unique perspectives. We hire strictly based on merit, meaning we seek out the candidates with the right abilities, knowledge, and skills considered the most suitable for the job. We encourage you to apply for roles where you don't fully meet the listed requirements, especially if you're passionate or knowledgable about crypto!

We may ask candidates to complete job-related skills or work-style assessments as part of our hiring process. These assessments are designed to evaluate competencies relevant to the role and are applied consistently across candidates for similar positions. Assessment results are considered alongside other relevant information, such as experience and interviews, and are not the sole basis for any employment decision.

As an equal opportunity employer, we don’t tolerate discrimination or harassment of any kind. Whether that’s based on race, ethnicity, age, gender identity, citizenship, religion, sexual orientation, disability, pregnancy, veteran status or any other protected characteristic as outlined by federal, state or local laws. 

Stay in the know

Follow us on Twitter

Learn on the Kraken Blog

Connect on LinkedIn

Candidate Privacy Notice