Senior Software Engineer in London

Senior Software Engineer in London

London Full-Time 60000 - 80000 ÂŁ / year (est.) No home office possible
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At a Glance

  • Tasks: Build and operate backend services for secure payment and checkout workflows.
  • Company: Join Verifone, a leader in fintech with a diverse and inclusive culture.
  • Benefits: Enjoy competitive salary, health benefits, remote work, and growth opportunities.
  • Other info: Dynamic environment with excellent career growth opportunities in the fintech space.
  • Why this job: Make a real impact on global transactions while working with cutting-edge technologies.
  • Qualifications: Experience in TypeScript, Node.js, and backend frameworks is essential.

The predicted salary is between 60000 - 80000 ÂŁ per year.

We are seeking a London‑based Senior Software Engineer (Node.js / TypeScript) to build and operate backend services supporting payment, checkout, and transactional workflows. You will collaborate closely with Product, Frontend, Platform, and Infrastructure teams to deliver secure, scalable APIs in high‑throughput environments. This role sits at the core of Verifone’s payments and checkout platform, where backend engineering directly impacts secure, high‑volume transactions used globally. You’ll design and operate scalable, production‑critical systems that must perform reliably under real‑world load, evolving payment methods, and strict security requirements.

Required Skills And Experience Needed

  • Programming Languages
    • TypeScript (version 3.x or higher)
    • Node.js (version 16 or higher)
  • Backend Frameworks & Libraries
    • Backend frameworks such as Hapi.js, or alternatives including Express, Fastify, or NestJS
    • Validation using Joi
    • Authentication and authorization using JWT and OAuth2
  • Architecture & Design
    • Strong grounding in Clean Architecture and Domain‑Driven Design (DDD)
    • Dependency Injection (e.g., InversifyJS)
    • Repository and modular design patterns
    • Experience building maintainable, testable backend systems
  • APIs & Data
    • Design and operation of RESTful APIs
    • API versioning and request validation
    • Advanced filtering using RSQL or equivalent
    • Experience with MongoDB (modeling, indexing, performance tuning)
    • Experience with Redis for caching or messaging
    • Database migrations and schema evolution
  • Cloud & Infrastructure
    • Hands‑on experience with AWS services such as EC2, S3, Secrets Manager, and CloudWatch
    • Docker and Docker Compose
    • Strong discipline with CI/CD pipelines and Git workflows
  • Testing & Quality
    • Automated testing using Jest or Mocha/Chai/Sinon
    • End‑to‑end testing with Cypress (optional)
    • Strong focus on code quality, reliability, and maintainability

Bonus Skills And Experience

  • Payments & Security
    • Experience integrating payment providers such as Stripe, PayPal, or Klarna
    • Knowledge of authorization, capture, and refund flows
    • Experience with 3D Secure
    • Awareness of PCI‑DSS requirements and security best practices
    • Understanding of checkout and transactional domain flows
  • Production Engineering
    • Performance optimization and debugging in production systems
    • Exposure to monitoring or APM tools (e.g., AppDynamics or similar)
    • Experience operating high‑availability or fault‑tolerant systems
    • Familiarity with fraud‑related considerations
  • Frontend & Platform Exposure
    • Experience working alongside frontend frameworks such as Angular or React
    • Familiarity with RxJS and state management (NgRx or Redux)
    • Server‑side rendering with Pug templates
    • HTML/CSS with SASS or PostCSS
    • Iframe‑based widget embedding
  • Additional Bonuses
    • Fintech, payments, or e‑commerce domain experience
    • Messaging systems such as Kafka, RabbitMQ, or Redis Pub/Sub
    • Internationalization (i18n) systems
    • Puppeteer for PDF or receipt generation

Equal Opportunity Statement

Verifone is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.

Senior Software Engineer in London employer: GoTo Meeting

Verifone is an exceptional employer, offering a dynamic work environment in London where innovation meets collaboration. As a Senior Software Engineer, you will be at the forefront of developing secure and scalable payment solutions, with ample opportunities for professional growth and skill enhancement. Our commitment to diversity and inclusion, coupled with a strong focus on employee well-being, makes Verifone a rewarding place to build your career in the fintech industry.
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Contact Detail:

GoTo Meeting Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Software Engineer in London

✨Tip Number 1

Network like a pro! Reach out to your connections in the tech industry, especially those who work at companies you're interested in. A friendly chat can lead to referrals, which can give you a leg up in the hiring process.

✨Tip Number 2

Show off your skills! Create a portfolio or GitHub repository showcasing your projects, especially those using Node.js and TypeScript. This gives potential employers a taste of what you can do and how you tackle real-world problems.

✨Tip Number 3

Prepare for technical interviews by practicing coding challenges and system design questions. Use platforms like LeetCode or HackerRank to sharpen your skills. Remember, confidence is key when discussing your thought process!

✨Tip Number 4

Don’t forget to apply through our website! We love seeing candidates who are genuinely interested in joining us. Tailor your application to highlight your experience with backend systems and payment solutions, and let’s get the conversation started!

We think you need these skills to ace Senior Software Engineer in London

Node.js (version 16 or higher)
TypeScript (version 3.x or higher)
Hapi.js, Express, Fastify, or NestJS
Joi for validation
JWT and OAuth2 for authentication and authorization
Clean Architecture
Domain-Driven Design (DDD)
Dependency Injection (e.g., InversifyJS)
RESTful APIs design and operation
MongoDB (modeling, indexing, performance tuning)
Redis for caching or messaging
AWS services (EC2, S3, Secrets Manager, CloudWatch)
Docker and Docker Compose
CI/CD pipelines and Git workflows
Automated testing using Jest or Mocha/Chai/Sinon

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights your experience with Node.js and TypeScript, as well as any backend frameworks you've worked with. We want to see how your skills align with the role, so don’t be shy about showcasing relevant projects!

Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you’re passionate about backend engineering and how your experience can help us build secure, scalable APIs. Keep it concise but impactful!

Showcase Your Problem-Solving Skills: In your application, mention specific challenges you've faced in previous roles and how you tackled them. We love seeing candidates who can think critically and adapt to evolving requirements, especially in high-throughput environments.

Apply Through Our Website: We encourage you to apply directly through our website for the best chance of getting noticed. It’s super easy, and you’ll be one step closer to joining our awesome team at StudySmarter!

How to prepare for a job interview at GoTo Meeting

✨Know Your Tech Stack

Make sure you’re well-versed in Node.js and TypeScript, especially the versions mentioned in the job description. Brush up on backend frameworks like Hapi.js or Express, and be ready to discuss how you've used them in past projects.

✨Showcase Your Problem-Solving Skills

Prepare to talk about specific challenges you've faced in building scalable systems. Think of examples where you had to optimise performance or troubleshoot issues in production environments, as this will demonstrate your hands-on experience.

✨Understand Payment Systems

Since this role is centred around payment and checkout workflows, familiarise yourself with payment providers like Stripe or PayPal. Be ready to discuss security best practices and how you’ve implemented them in previous roles.

✨Collaborate and Communicate

This position requires close collaboration with various teams. Prepare to share examples of how you've worked with product, frontend, and infrastructure teams in the past. Highlight your communication skills and how they contributed to successful project outcomes.

Senior Software Engineer in London
GoTo Meeting
Location: London

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