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Senior Frontend Engineer, Assets Team
Fireblocks — один из самых успешных единорогов в сфере крипто-инфраструктуры с мировым именем. Работа в такой компании предлагает отличные карьерные перспективы, работу с передовым стеком технологий и участие в создании продуктов для крупнейших банков мира.
Сложность вакансии
Роль требует глубоких знаний React, микрофронтенд-архитектуры и Node.js, а также опыта работы с высоконагруженными SaaS-платформами. Дополнительную сложность добавляет специфика блокчейн-индустрии и высокие требования к безопасности кода.
Анализ зарплаты
Зарплата в объявлении не указана, но для позиции Senior Frontend Engineer в Варшаве в международной финтех-компании рыночные ожидания обычно выше среднего по локальному рынку. Fireblocks известен конкурентными предложениями, часто включающими опционы.
Сопроводительное письмо
I am writing to express my strong interest in the Senior Frontend Engineer position within the Assets Team at Fireblocks. With over 5 years of experience in building complex React applications and a deep understanding of micro-frontend architectures, I am confident in my ability to contribute to your mission of making digital assets accessible and secure for global financial institutions.
In my previous roles, I have specialized in developing high-performance component libraries and managing intricate state logic, which aligns perfectly with the needs of your Assets domain. I am particularly drawn to Fireblocks because of your impressive client roster, including BNY Mellon and Revolut, and your commitment to maintaining a security-oriented mindset in every line of code.
I am eager to bring my expertise in TypeScript, Node.js, and SaaS product development to your R&D team in Warsaw. My proactive approach to performance optimization and my passion for creating delightful user experiences make me a great fit for this senior role. Thank you for considering my application.
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Описание вакансии
The world of digital assets is accelerating in speed, magnitude, and complexity, opening the door to new ways for leveraging the blockchain. Fireblocks’ platform and network provide the simplest and most secure way for companies to work with digital assets and it trusted by some of the largest financial institutions, banks, globally-recognized brands, and Web3 companies in the world, including BNY Mellon, BNP Paribas, ANZ Bank, Revolut, and thousands more.
About Fireblocks:Fireblocks is on a mission to enable every business to easily and securely access digital assets and cryptocurrencies. As a leading provider in the digital asset space, we are committed to fostering a diverse and inclusive workforce that mirrors the global clientele we serve.
About the Team
At Fireblocks, our team owns the assets domain, which stands as one of the fundamental pillars of our platform. Assets are integral to nearly every operation and product within our platform. Our mission is to elevate asset management by refining our systems to ensure assets are modeled, represented, presented, and interacted with in the most optimal manner possible.
This involves orchestrating integrations with third-party data sources, accommodating various standards across different blockchains, and empowering both our internal organization and our customers to seamlessly view, manage, and interact with assets across all our platform products.
As a senior Frontend Engineer in the Assets team, you’ll design and develop robust React front end applications and backend systems to support a diverse range of customers, including the largest financial enterprises, retail investors, crypto-native organizations, and fintech companies. Your focus will be on building scalable products for managing assets on the platform, encompassing data modeling, processing, and analysis, while ensuring seamless integration and delivering exceptional user experiences.
What You’ll Do
- Design and implement scalable, robust UIs and frontend components. Develop practical, maintainable, and highly performant code from product requirements using modern frameworks (e.g., React) and sophisticated design patterns. Establish and maintain a comprehensive, performant component library to handle growing complexity and high data throughput.
- Contribute to the full stack, focusing on high-quality, responsive frontend experiences. Prioritize an exceptional, accessible user journey. Collaborate with backend teams on defining and consuming efficient APIs (REST/GraphQL), ensuring seamless and secure frontend-backend integration across various devices (desktop, mobile, tablet).
- Continuously improve user experience and optimize performance. Proactively monitor key application performance metrics. Identify and resolve performance bottlenecks (e.g., load times, bundle size) using modern optimization techniques.
- Work closely with cross-functional teams to deliver high-quality solutions. Translate design mockups (e.g., Figma) and product specifications into actionable technical plans. Provide pragmatic feedback and collaborate with Product, Design, and Engineering within an agile framework to ensure a cohesive final product that meets all business and technical standards.
About You
- You care about delightful user experience.
- You’re a creative thinker with a passion for solving complex engineering challenges.
- You can clearly communicate your decision making process and engineering choices.
- You have a natural curiosity and drive to continuously learn new technologies.
- You have opinions about the latest technological trends.
- You have an excellent product sense.
- You thrive in a collaborative environment and excel as both a project leader and a team player.
What You’ll Bring
- 5+ years of experience as a Frontend Engineer.
- Bachelor of Science (B.Sc.) or equivalent degree/experience
- Experience with backend for frontend services.
- Experience with micro frontend architecture.
- Experience with non trivial frontend applications and state management.
- Understanding of common web and SaaS software architectures.
- Proficiency in Node.js and TypeScript.
- Proficiency in React and its ecosystem.
- Excellent product sense.
- Experience with blockchain or cryptocurrency- an advantage.
- Experience developing SaaS products through the full product life cycle.
- Experience in researching and integrating new technologies.
- Proven ability to research, evaluate, and integrate new technologies.
- A security-oriented approach and mindset.
Fireblocks' mission is to enable every business to easily and securely access digital assets and cryptocurrencies. In order to do that, we strongly believe our workforce should be as diverse as our clients, and this is why we embrace diversity and inclusion in all its forms.
Please see our candidate privacy policy here.
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Навыки
- TypeScript
- SaaS
- Figma
- REST
- GraphQL
- React
- Node.js
- Micro-frontends
- Blockchain
- State Management
Возможные вопросы на собеседовании
Проверка опыта работы с масштабируемыми интерфейсами, что критично для микрофронтенд-архитектуры Fireblocks.
Расскажите о вашем опыте внедрения микрофронтенд-архитектуры: с какими основными сложностями вы столкнулись и как их решали?
В домене активов важно эффективно отображать большие объемы данных.
Как бы вы подошли к оптимизации производительности React-приложения, которое должно отображать и обновлять в реальном времени тысячи транзакций или активов?
Вакансия требует навыков работы с Backend for Frontend (BFF).
В каких случаях вы бы предпочли использовать GraphQL вместо REST для BFF слоя, и как это влияет на типизацию в TypeScript?
Fireblocks работает в сфере безопасности цифровых активов.
Какие специфические практики безопасности вы применяете при разработке фронтенд-части финансовых приложений для защиты от XSS и CSRF атак?
Проверка умения работать с состоянием в сложных приложениях.
Опишите ваш подход к управлению глобальным состоянием в крупном приложении. В каких ситуациях вы выберете Context API, а в каких — специализированные библиотеки вроде Redux или Zustand?
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