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- Tasks: Design and implement APIs for card data lifecycle and payment processing.
- Company: Sequoia-backed startup revolutionising payments infrastructure.
- Benefits: Competitive salary, equity options, and a dynamic work environment.
- Other info: Opportunity for rapid career growth in a supportive culture.
- Why this job: Join a high-calibre team and make a real impact in fintech.
- Qualifications: Experience in API design and a passion for secure payment solutions.
The predicted salary is between 70000 - 150000 £ per year.
Company Description: Sequoia & Index‑backed payments infrastructure startup with $46M raised.
Job Description: Join a high‑caliber team of 25 building the encryption layer for global commerce. You will own the card data lifecycle end‑to‑end, designing APIs that power payments for giants like Ramp and Rippling. This is a rare chance to ship mission‑critical infrastructure where security, scale, and developer experience are the primary products.
Location: London, UK
Why this role is remarkable:
- Work at the heart of the payments stack, processing $5B+ in annual volume for the internet's fastest‑growing fintechs and marketplaces.
- Exceptional pedigree with backing from Sequoia, Kleiner Perkins, and Index Ventures, having recently closed a $25M Series B to scale operations 4x.
- True ownership culture where every engineer influences product direction, working with a sophisticated tech stack including Rust and TypeScript in a high‑trust environment.
What You Will Do:
- Design and implement developer‑facing APIs and primitives for card tokenization, 3D Secure, and multi‑PSP orchestration.
- Collaborate directly with customers to understand complex requirements.
Senior / Staff Product Engineer (£70k-£150k + Equity) at Sequoia-backed payments infrastructure[...] in London employer: Jack & Jill
Contact Detail:
Jack & Jill Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior / Staff Product Engineer (£70k-£150k + Equity) at Sequoia-backed payments infrastructure[...] in London
✨Tip Number 1
Network like a pro! Reach out to folks in your industry on LinkedIn or at meetups. We all know that sometimes it’s not just what you know, but who you know that can get you in the door.
✨Tip Number 2
Prepare for those interviews! Research the company and its products thoroughly. We want you to be able to discuss how your skills align with their needs, especially when it comes to building secure and scalable payment solutions.
✨Tip Number 3
Show off your projects! If you've worked on relevant APIs or payment systems, bring them up during your conversations. We love seeing real-world applications of your skills, so don’t hold back!
✨Tip Number 4
Apply through our website! It’s the best way to ensure your application gets seen by the right people. We’re excited to see what you can bring to the table, so don’t hesitate to hit that apply button!
We think you need these skills to ace Senior / Staff Product Engineer (£70k-£150k + Equity) at Sequoia-backed payments infrastructure[...] in London
Some tips for your application 🫡
Tailor Your CV: Make sure your CV reflects the skills and experiences that align with the Senior / Staff Product Engineer role. Highlight your experience with APIs, security, and any relevant tech stacks like Rust and TypeScript.
Craft a Compelling Cover Letter: Use your cover letter to tell us why you're passionate about payments infrastructure and how you can contribute to our mission. Be specific about your past projects and how they relate to what we do at StudySmarter.
Showcase Your Problem-Solving Skills: In your application, include examples of how you've tackled complex engineering challenges in the past. We love seeing how you approach problems and come up with innovative solutions.
Apply Through Our Website: We encourage you to apply directly through our website for the best chance of getting noticed. It helps us keep track of applications and ensures you’re considered for the role!
How to prepare for a job interview at Jack & Jill
✨Know Your Tech Stack
Make sure you’re well-versed in Rust and TypeScript, as these are key technologies for the role. Brush up on your knowledge of API design and card tokenization, as you’ll likely be asked to discuss how you would implement these in real-world scenarios.
✨Understand the Company’s Mission
Dive deep into the company’s vision and the impact of their payment infrastructure. Be prepared to discuss how your experience aligns with their goals, especially in terms of security and scalability. Showing that you understand their mission will set you apart.
✨Prepare for Problem-Solving Questions
Expect to tackle some technical challenges during the interview. Practice coding problems related to API design and data lifecycle management. Think through your problem-solving process out loud, as interviewers often look for your thought process as much as the final answer.
✨Showcase Your Collaboration Skills
Since this role involves working closely with customers and other engineers, be ready to share examples of past collaborations. Highlight how you’ve successfully communicated complex ideas and worked in a team to deliver impactful solutions.