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- Tasks: Build sleek React applications that simplify currency hedging for finance teams.
- Company: Exciting $25M Series A fintech revolutionising financial infrastructure.
- Benefits: Competitive salary, modern tech stack, and a collaborative team environment.
- Other info: Work in a fast-paced startup culture in London, with great growth potential.
- Why this job: Join a small team and directly influence product direction from day one.
- Qualifications: 0-3 years experience with React and TypeScript; strong design sensibility.
The predicted salary is between 50000 - 60000 £ per year.
A $25M Series A FCA-regulated fintech building an FX copilot for fast-growing businesses.
You will build polished React applications that simplify complex currency hedging for finance teams. Working directly with the CTO, you'll own the frontend architecture, design trade flows, and create data visualizations for over 200 companies. This role combines deep engineering with a strong product sensibility to make sophisticated financial infrastructure feel effortless.
Location: London, UK
Why this role is remarkable:
- Work at the intersection of high-growth fintech and elite product craft, shipping features used by industry leaders like Paddle, Tines, and ManyChat.
- Join a small, high-output team of ~10 people where you have direct influence over product direction and frontend architecture from day one.
- Leverage a modern tech stack and cutting-edge AI development tools (Cursor, Claude Code) to move faster while maintaining world-class engineering standards.
What You Will Do:
- Build and ship production-ready React and TypeScript features across the core web application, including dashboards and trade workflows.
- Partner with the founding team to prototype and iterate on complex UI/UX challenges, ensuring high visual hierarchy and interaction quality.
- Take full ownership of the frontend lifecycle, from identifying rough edges in the user journey to deploying robust, stateful interfaces.
The ideal candidate:
- 0-3 years of professional experience with a portfolio of complex side projects, open-source contributions, or freelance work that proves deep technical expertise.
- Advanced proficiency in React and TypeScript with a refined eye for design details like typography, spacing, and intuitive loading states.
- Based in London and excited to collaborate in-person 5 days a week within a high-velocity, Series A startup environment.
Frontend Engineer at $25M Series A London fintech employer: Jack & Jill
Contact Detail:
Jack & Jill Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Frontend Engineer at $25M Series A London fintech
✨Tip Number 1
Network like a pro! Reach out to people in the fintech space, especially those who work at companies you admire. A friendly chat can lead to referrals or insider info about job openings.
✨Tip Number 2
Show off your skills! Create a portfolio that highlights your best React and TypeScript projects. Make sure it’s easy to navigate and visually appealing—first impressions matter!
✨Tip Number 3
Prepare for the chat with Jack! Research the company and its products, and think about how your experience aligns with their needs. Be ready to discuss your past projects and how they relate to building polished applications.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we love seeing candidates who take that extra step!
We think you need these skills to ace Frontend Engineer at $25M Series A London fintech
Some tips for your application 🫡
Show Off Your Skills: Make sure to highlight your experience with React and TypeScript in your application. We want to see your technical expertise shine through, so don’t hold back on showcasing any side projects or open-source contributions you've made!
Tailor Your Application: Take a moment to customise your application for this role. Mention how your skills align with building polished applications and simplifying complex processes, just like we do at StudySmarter. It shows us you’re genuinely interested!
Keep It Clear and Concise: When writing your application, clarity is key! Use straightforward language and structure your thoughts well. We appreciate a clean presentation that makes it easy for us to see your potential.
Apply Through Our Website: Don’t forget to apply through our website! It’s the best way for us to receive your application and ensures you’re considered for this exciting opportunity. We can’t wait to hear from you!
How to prepare for a job interview at Jack & Jill
✨Know Your Tech Stack
Make sure you’re well-versed in React and TypeScript, as these are crucial for the role. Brush up on your knowledge of modern frontend practices and be ready to discuss how you've used these technologies in your projects.
✨Showcase Your Portfolio
Bring along examples of your work, whether they’re side projects or open-source contributions. Be prepared to explain your thought process and the challenges you faced while building those applications.
✨Understand the Product
Familiarise yourself with the fintech space and the specific challenges of currency hedging. This will help you demonstrate your understanding of the product and how your skills can contribute to solving real-world problems.
✨Ask Insightful Questions
Prepare thoughtful questions about the company’s vision, the team dynamics, and the tech stack. This shows your genuine interest in the role and helps you assess if it’s the right fit for you.