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We're looking for an experienced Senior Front-end Engineer with a strong focus on React to join our core platform team. You'll be instrumental in designing, developing, and scaling the user interfaces for our innovative lending platform, translating complex financial workflows and AI capabilities into intuitive, responsive, and performant user experiences. This is an opportunity to shape the direct interaction users have with our product, leveraging modern front-end technologies in a rapidly growing FinTech startup.
Key Responsibilities:
- Design and develop scalable, high-performance user interfaces using React.js and TypeScript.
- Build and maintain a robust library of reusable UI components and design systems.
- Implement complex financial data visualizations and interactive dashboards.
- Collaborate closely with product designers, UX researchers, and backend engineers to define and implement user-centric features.
- Optimize web applications for maximum speed, scalability, and accessibility.
- Implement and maintain state management solutions (e.g., Redux, Zustand, React Query) for complex applications.
- Ensure cross-browser compatibility and responsive design across various devices.
- Write comprehensive unit, integration, and end-to-end tests for front-end applications.
- Mentor junior engineers and contribute to front-end best practices and documentation.
- Play a key role in the design process and take the lead in developing all aspects of our product's user interfaces.
- Enhance architectural integrity and coding standards across all front-end implementations, contributing to the overall quality and maintainability of our software.
- Embrace a hands-on approach, effectively addressing current business needs while building scalable solutions for the future.
- Identify and address performance, security, and usability concerns, ensuring that our products meet the highest standards of quality and user satisfaction.
- Develop the product in alignment with rigorous architectural and technological standards, ensuring scalability, maintainability, and long-term success.
- Conduct thorough testing and troubleshooting to identify and resolve any issues, ensuring the robustness and stability of our applications.
- Drive the enhancement of existing systems, expanding their functionality and optimizing their performance for an exceptional user experience.
Required Qualifications:
- 3+ years of professional front-end development experience, with at least 1 year in senior/lead roles.
- Expert proficiency in React.js, TypeScript, JavaScript (ES6+), HTML5, and SCSS.
- Deep understanding of modern front-end architectures, component-driven development, and state management patterns.
- Hands-on experience consuming and integrating with RESTful APIs and asynchronous data flows.
- Proven track record building complex, user-facing applications, preferably in FinTech or a data-intensive domain.
- Strong knowledge of UI/UX principles, responsive design, and web performance optimization techniques.
- Experience with build tools like Webpack, Vite, or similar.
- Familiarity with front-end testing frameworks (e.g., Jest, React Testing Library, Cypress).
- Solid understanding of accessibility (A11y) best practices.
Requirements:
- Ability to perform logical thinking and conquer complex problems, thinking outside the box to find innovative solutions.
- Embrace a growth mindset and a passion for continuous learning, eagerly adapting to new information and situations with agility and enthusiasm.
- Extensive experience collaborating effectively with international and cross-functional teams, leveraging diverse perspectives to achieve shared objectives.
- Showcase your expertise in at least one leading React framework, whether it's the captivating NextJS, the powerful Recoil, the stylish Antd5, the flexible Tailwind CSS, or the versatile NodeJS.
- Strong coding skills with a deep understanding of data structures, algorithms, error handling, and design patterns, ensuring efficient and reliable software development.
- Familiarity with container orchestration tools such as Kubernetes, enabling you to manage and optimize complex deployment environments.
- Expertise in front-end technologies such as TypeScript, JavaScript, HTML5, and SCSS, empowering you to create visually appealing and highly functional user interfaces.
- Proficiency in English, both written and verbal, facilitating seamless communication and collaboration with global stakeholders.
Nice to Have
- Knowledge of Back-End Frameworks Exper
- ience with Next.js for server-side rendering (SSR) or static site generation (SSG).Knowl
- edge of design systems and component libraries (e.g., Storybook, Material-UI, Ant Design).Exper
- ience with data visualization libraries (e.g., D3.js, Chart.js).Famil
- iarity with Cloudflare Pages or other modern front-end deployment platforms.Worki
- ng with LLM APIs for front-end integration or specialized UI components.Backg
- round in FinTech, lending, or alternative financing.Exper
- ience with WebSockets for real-time updates on the front-end.Profi
- ciency with Infrastructure as Code tools like Pulumi for front-end infrastructure.
- front-end: React.js, TypeScript, Next.js, Redux/Zustand
- Styling: Tailwind CSS, Styled Components, SASS
- Testing: Jest, React Testing Library, Cypress
- Build Tools: Webpack, Vite
- Cursor, Windsurf, Claude
- Monitoring: New Relic, Sentry
- A competitive and motivating income that recognizes and values your contributions.
- Opportunity to work on cutting-edge AI and FinTech challenges
- Flexible work schedule to promote work-life balance and accommodate your personal needs.
- Embrace a non-corporate and cozy work environment, where collaboration and creativity flourish.
- Modern tech stack with freedom to explore new technologies
- Direct impact on product direction and technical architecture
- Collaborative environment
- Regular team events and offsites
- Ample opportunities for professional growth and development, empowering you to reach new heights in your career.
- Initial technical screening (45 minutes)
- Technical deep-dive with engineering team (90 minutes) - will include React-specific questions and problem-solving
- System design session (60 minutes) - will focus on front-end architecture and scalability
- Cultural fit interview with leadership (45 minutes)
- Reference checks and offer
- Links to your GitHub/GitLab profile or personal portfolio
- Examples of production front-end applications you've built
- Your experience with our tech stack, especially React
- What interests you most about FinTech and AI from a user experience perspective?
Tech Stack Highlights
What We Offer
Interview Process:
How to Apply:
Send your CV and a brief note about why you're excited to work in FinTech to [email protected]
Please include:
About Capital33
Capital 33 is a next-generation merchant bank focused on two core services: capital raising and direct lending for mid-market and large enterprises. We support every stage of corporate growth—from day-to-day working-capital needs to multi-year investment programs—leveraging deep expertise in structured finance, syndicated loans, private debt, and project finance. We're building the future of FinTech by combining cutting-edge artificial intelligence with deep financial expertise to provide startups with the capital they need to grow.
Capital33 is an equal opportunity employer committed to building a diverse and inclusive team. We welcome applications from all qualified candidates regardless of race, gender, age, religion, identity, or experience.
Key Skills
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