**About Uphold:** Uphold is a financial technology company that believes on\-chain services are the future of finance. It provides modern infrastructure for on\-chain payments, banking and investments. Offering Consumer Services, Business Services and Institutional Trading, Uphold makes pioneering financial services easy and trusted for millions of customers in more than 140 countries. Uphold integrates with more than 30 trading venues, including centralized and decentralized exchanges, to deliver superior liquidity and optimal execution. Uphold never loans out customer assets and is always 100% reserved. The company pioneered radical transparency and uniquely publishes its assets and liabilities every 30 seconds on a public website (https://uphold.com/en\-us/transparency). Uphold strips away the complexity and lack of transparency to open up Web3 finance for everyone. To learn more about Uphold, please visit https://uphold.com. **Job Summary:** Uphold is looking for a Frontend Engineer to join our Engineering team. This is an incredibly exciting opportunity where you’ll get to focus on building and improving Topper, our crypto on and off\-ramp. You will be designing and building with three core principles in mind: maintainability, performance, and security. To learn more about Topper, please visit https://www.topperpay.com/about. **What you'll be doing primarily:** * Contributing to the ongoing development and evolution of the Topper frontend, offering informed architectural recommendations and ensuring the codebase remains scalable,maintainable, secure, and performant across all devices and platforms. * Owning complex features end\-to\-end, from gathering and refining requirements through design, implementation, testing, rollout, and post\-deployment optimization. You will proactively identify technical improvements aligned with product goals, user needs, and engineering best practices. * Collaborating closely with backend, product, and design teams, shaping API interactions, integration patterns, and workflows to ensure seamless data flow, consistent user experiences, and efficient system communication. * Delivering high\-quality, secure, and efficient code, setting and upholding strong engineering standards, contributing to best practices, and ensuring solutions are built for performance, accessibility, and long\-term sustainability. * Playing an active role across the entire development lifecycle, influencing technical direction during planning, providing rigorous and constructive code reviews, and contributing to robust testing and deployment processes. * Mentoring and supporting other developers, offering guidance, sharing knowledge, and helping elevate the technical quality, consistency, and craftsmanship of the team. **Required Qualifications and Skills:** * 5\+ years of experience with modern frontend technologies and frameworks, including React, Next.js, Redux (or similar state\-management libraries), GraphQL, PostCSS, Styled Components, and RESTful web services. * Degree in Computer Science, Software Engineering or related field. * Strong understanding of DOM fundamentals, CORS, browser storage mechanisms, performance considerations, script loading strategies, networking behaviors, caching, and request/response lifecycles. * Extensive knowledge of ECMAScript standards and mastery of modern JavaScript patterns and best practices. * High proficiency in modern CSS, including Flexbox, CSS Grid, responsive design principles, and component\-driven styling architectures. * Solid experience with testing practices and tooling, such as Jest, React Testing Library, or similar frameworks. * Practical experience with version control systems, particularly Git. * Good understanding of modern development pipelines, including build tools, bundlers and CI/CD systems. * Awareness of frontend security best practices, including mitigating common vulnerabilities and handling sensitive data appropriately. * Strong experience building and maintaining multi\-language applications. * Excellent communication and collaboration with a solid execution mindset, able to contribute to architectural decisions and mentor other developers to help elevate the team’s technical quality. * Fluent written and spoken English, capable of clearly communicating complex technical concepts. **Bonus if you have:** * Fluency in cryptocurrencies or other digital assets as they are core to our business. * Experience in developing widgets, such as web applications embedded in multiple * environments like iframes, webviews, and third\-party platforms. * Strong experience with web SDKs and inter\-application communication patterns. * Open source project contributions of any kind, such as tools developed to solve specific problems you’ve had or fixing issues on existing projects. **What We Offer:** * **Innovation and Impact:** Contribute to pioneering projects in a dynamic and challenging environment. * **Competitive Compensation:** Performance bonuses, and comprehensive benefits on top of a competitive salary. * **Strong Company Culture:** Thrive in a supportive, collegiate environment with values of integrity, teamwork, accountability, and excellence. * **Global Collaboration:** Participate in regular updates, strategy sessions, and networking opportunities across the group. * **Development Opportunities:** Access training and mentorship programs. * **Flexibility:** Enjoy options to work from home, other locations, or adjust your hours. * **Inclusive Environment:** Value and respect diverse perspectives. **Our Benefits** * Annual bonus program based on individual, team and company performance. * Home office stipend for a productive setup. * Generous PTO, healthcare, and employee assistance programs. * Engaging events and celebrations. * Well\-stocked office kitchen with a foodie culture. Join us to grow, innovate, and contribute meaningfully. Be part of our talented team! Visit our careers page for more exciting opportunities, if this role isn’t the perfect fit. **EEOC Employer** We're proud to be an Equal Opportunity Employer and we celebrate our employees' differences, including race, color, religion, gender identity, national origin, age, military service eligibility, veteran status, sexual orientation, marital status, disability, and any other protected classes. Difference makes us stronger and better \- together.