Senior/Staff Product Engineer in London

Senior/Staff Product Engineer in London

London Full-Time 43200 - 72000 £ / year (est.) No working from home possible
Evervault

At a Glance

  • Tasks: Design and build secure APIs for payments, working directly with customers.
  • Company: Evervault, a leading tech company focused on internet security.
  • Benefits: Competitive salary, flexible work environment, and opportunities for professional growth.
  • Other info: Collaborative culture in a dynamic London office with excellent career advancement.
  • Why this job: Join a mission-driven team and make a real impact in the payments ecosystem.
  • Qualifications: Strong background in distributed systems and a passion for developer experience.

The predicted salary is between 43200 - 72000 £ per year.

About Evervault

Evervault is building the security layer of the internet. Developer-first primitives for encryption, tokenization, and secure compute - currently focused on payments, where the stakes (and the compliance burden) are highest. We help engineering teams collect, process, store, and enrich their most sensitive data - and comply with the frameworks that govern it. Our customers range from early-stage startups to the largest merchants and payment service providers on the internet, including Rippling, Ramp, and Sorare.

The Role

We’re hiring Product Engineers to join our Cards team in London. This isn’t a "build to spec" role. You’ll own problems end-to-end — from talking to customers, to designing the API surface, to shipping production code, to measuring whether it worked. We’re looking for people with a strong background or interest in building distributed, high-throughput systems and networks in the payments ecosystem. You’ll be building core payments infrastructure: tokenization, network integrations, and whatever comes next. We work mostly in Rust and Node.js, built on AWS. But we care far more about your engineering skill than knowledge of a particular language or framework.

What You’ll Work On

  • Designing and building developer-facing APIs and primitives for data security
  • Encrypting and decrypting data at tens of thousands of requests per second
  • Multi-PSP payments orchestration — routing card transactions across processors to optimise cost and acceptance rates
  • Working with low-level networking primitives to create high-throughput forward and reverse proxies
  • Leveraging Confidential Computing and secure enclaves to build the most secure systems in the cloud
  • Developing custom serverless runtimes for Python and Node.js
  • Shipping full-stack: backend services, APIs, SDKs, UI components, and documentation
  • Working directly with customers — understanding their payment stacks, debugging integrations, and shaping the roadmap from real problems

Who You Are

  • Deeply technical. You have strong fundamentals in distributed systems, networking, and high-throughput infrastructure — not just frameworks. You think about problems like global state replication, data consistency, and performance engineering. You care about how things work under the hood and you’re comfortable going deep.
  • Relentlessly product-minded. You think about the developer experience of every API you design. You care about what gets shipped, not just what gets built. You want to build tooling and APIs that developers actually love. You measure your work by impact, not output.
  • Founder energy. You may have started something before, or you want to one day. Either way, you operate with ownership, urgency, and bias for action. You take pride in working on projects to successful completion — and you don’t wait to be told what to do.
  • An excellent communicator. You write clearly. You can explain complex technical decisions to non-technical people. You’re comfortable in front of customers and deeply involved in the product development lifecycle.
  • Excellent taste. In code, in APIs, in visual design, in documentation. You know what good looks like and you hold yourself and others to a high bar.
  • Full-stack, not pigeonholed. You’re comfortable across the stack — backend, frontend, infrastructure — and you enjoy working with many languages, frameworks, and programming paradigms. You’d rather learn something new than stay in your lane.
  • Curious. You want to understand how card networks actually work. You dig into RFCs. You read source code for fun. You ask why.
  • A good human. Kind, generous, low ego. You thrive in a collaborative environment with people from different backgrounds. The kind of person who makes a team better just by being in the room.

Logistics

Location: London, Tues -> Thursday in our Shoreditch office. Mondays & Fridays encouraged. Visa sponsorship: Unfortunately, Evervault does not currently sponsor visas to work in the UK.

Senior/Staff Product Engineer in London employer: Evervault

Evervault is an exceptional employer, offering a dynamic work culture that prioritises innovation and collaboration in the heart of London. With a focus on employee growth, team members are empowered to take ownership of projects and engage directly with customers, fostering a sense of purpose and impact. The company provides a supportive environment where technical skills are honed, and creativity is encouraged, making it an ideal place for those looking to make meaningful contributions in the tech industry.

Evervault

Contact Details:

Evervault Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Senior/Staff Product Engineer in London

Tip Number 1

Network like a pro! Reach out to folks in the industry, especially those at Evervault or similar companies. A friendly chat can sometimes lead to job opportunities that aren't even advertised.

Tip Number 2

Show off your skills! Create a portfolio or GitHub repo showcasing your projects, especially those related to distributed systems or payment infrastructures. This gives potential employers a taste of what you can do.

Tip Number 3

Prepare for interviews by diving deep into Evervault's tech stack. Brush up on Rust, Node.js, and AWS, and be ready to discuss how you've tackled similar challenges in the past. Confidence is key!

Tip Number 4

Apply through our website! It’s the best way to ensure your application gets seen. Plus, it shows you're genuinely interested in joining the team at Evervault.

We think you need these skills to ace Senior/Staff Product Engineer in London

Distributed Systems
Networking
High-Throughput Infrastructure
API Design
Data Security
Tokenization
AWS

Some tips for your application 🫡

Show Your Passion for Product Engineering:When writing your application, let us see your enthusiasm for product engineering shine through! Share specific examples of projects you've worked on that demonstrate your technical skills and how you’ve tackled real-world problems. We love seeing candidates who are genuinely excited about building impactful products.

Be Clear and Concise:We appreciate clarity in communication, so make sure your application is easy to read. Avoid jargon unless it’s necessary, and get straight to the point. Highlight your key achievements and experiences that align with the role, and don’t forget to proofread for any typos or errors!

Tailor Your Application:Take a moment to tailor your application specifically for the Senior/Staff Product Engineer role at Evervault. Mention how your background in distributed systems and networking aligns with our mission. This shows us that you’ve done your homework and are genuinely interested in joining our team.

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 the role. Plus, it gives you a chance to explore more about our company culture and values while you’re at it!

How to prepare for a job interview at Evervault

Know Your Tech Inside Out

Make sure you brush up on your knowledge of distributed systems, networking, and high-throughput infrastructure. Be ready to discuss how these concepts apply to the payments ecosystem, as this role requires a deep understanding of how things work under the hood.

Showcase Your Product Mindset

Prepare to talk about your approach to designing developer-facing APIs. Think about the developer experience and be ready to share examples of how you've measured the impact of your work, not just the output. This will demonstrate that you’re not just a coder but a product thinker.

Communicate Clearly and Confidently

Practice explaining complex technical concepts in simple terms. You’ll need to show that you can communicate effectively with both technical and non-technical stakeholders. Consider doing mock interviews with friends or colleagues to refine your communication skills.

Embrace Curiosity and Ownership

Be prepared to discuss your curiosity about how card networks operate and your willingness to dig into technical details. Show that you take ownership of your projects and have a bias for action. Share examples of times when you’ve taken initiative to solve problems or improve processes.