At a Glance
- Tasks: Design and build APIs for secure payments and collaborate with customers on integrations.
- Company: VC-backed fintech startup in London, focused on innovative payment solutions.
- Benefits: Competitive salary, dynamic team environment, and opportunities for ownership and impact.
- Other info: Be part of a rapidly scaling company with a focus on developer experience.
- Why this job: Join a high-performance team and shape the future of payment infrastructure.
- Qualifications: Strong technical skills in full stack development, networking, and data security.
The predicted salary is between 60000 - 80000 £ per year.
Company Description: VC-backed fintech infrastructure startup.
Location: London, UK.
Job Description: You will join a high-performance team building core payments infrastructure and data security primitives. This role involves owning the entire product lifecycle from customer discovery to shipping production-grade APIs. You will work across the stack to develop solutions for tokenization, network integrations, and 3D Secure for major global merchants.
Why this role is remarkable:
- Work on mission-critical infrastructure where security and precision are paramount for global transaction volume.
- Backed by top-tier VCs with a lean team of approximately 25 people, ensuring high impact and ownership.
- Opportunity to shape the product roadmap and technical culture of a rapidly scaling developer-first company.
What you will do:
- Design and build developer-facing APIs and full-stack primitives for card data security and payments.
- Collaborate directly with customers to understand their payment stacks and debug complex technical integrations.
- Own features end-to-end, contributing to everything from backend services and SDKs to technical documentation.
The ideal candidate:
- Deeply technical with strong fundamentals in systems, networks, and distributed infrastructure beyond just frameworks.
- Product-minded engineer with 'founder energy' who prioritises developer experience and impact over simple output.
- Excellent communicator with a high bar for quality in code, API design, and visual documentation.
Required Skills:
- Full Stack Development
- Networking
- Distributed Systems
- Data Security
Languages: English
Developer‑First Payments Platform API Engineer employer: Jack & Jill
Join a dynamic and innovative fintech infrastructure startup in London, where you'll be part of a high-performance team dedicated to building mission-critical payment solutions. With a strong focus on developer experience and ownership, this role offers unique opportunities for personal and professional growth, as well as the chance to shape the technical culture of a rapidly scaling company backed by top-tier VCs. Enjoy a collaborative work environment that values precision and security, making it an excellent place for those looking to make a meaningful impact in the world of payments.
StudySmarter Expert Advice🤫
We think this is how you could land Developer‑First Payments Platform API Engineer
✨Tip Number 1
Get your hands dirty with the tech! Dive into coding challenges or open-source projects that align with the skills mentioned in the job description. This not only sharpens your skills but also gives you real-world examples to discuss during interviews.
✨Tip Number 2
Network like a pro! Attend fintech meetups or developer conferences in London. Connecting with industry folks can lead to insider info about job openings and even referrals, which can give you a leg up in the hiring process.
✨Tip Number 3
Showcase your work! Create a portfolio that highlights your projects, especially those related to payments infrastructure or API development. Having tangible evidence of your skills can make you stand out when we’re looking for that perfect fit.
✨Tip Number 4
Apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re genuinely interested in joining our team and contributing to our mission of building top-notch payment solutions.
We think you need these skills to ace Developer‑First Payments Platform API Engineer
Some tips for your application 🫡
Show Your Passion for Payments:When writing your application, let us see your enthusiasm for the payments industry. Share any relevant experiences or projects that highlight your interest in fintech and how you can contribute to our mission of building secure payment infrastructure.
Be Clear and Concise:We appreciate clarity! Make sure your application is easy to read and straight to the point. Use bullet points where necessary to highlight your skills and experiences, especially those related to full-stack development and data security.
Tailor Your Application:Don’t just send a generic application. Tailor it to our job description by emphasising your experience with APIs, networking, and distributed systems. Show us how your background aligns with the role of a Developer-First Payments Platform API Engineer.
Apply Through Our Website:We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for this exciting opportunity. Plus, it shows you’re serious about joining our team!
How to prepare for a job interview at Jack & Jill
✨Know Your Tech Inside Out
Make sure you brush up on your knowledge of full stack development, networking, and distributed systems. Be ready to discuss specific technologies you've worked with and how they relate to the role. This will show that you're not just familiar with the concepts but can apply them effectively.
✨Showcase Your Problem-Solving Skills
Prepare to share examples of how you've tackled complex technical challenges in the past. Think about situations where you debugged integrations or improved API performance. This will demonstrate your ability to own features end-to-end and contribute meaningfully to the team.
✨Communicate Clearly and Effectively
As an excellent communicator, you should practice explaining technical concepts in a way that's easy to understand. During the interview, focus on clarity and precision in your responses, especially when discussing your approach to API design and documentation.
✨Emphasise Your Developer Experience Mindset
Highlight your product-minded approach and how you prioritise developer experience. Share any experiences where you shaped a product roadmap or contributed to a technical culture. This will resonate well with a developer-first company looking for someone with 'founder energy'.
