VeriFone

This London based 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. Job Description 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. Required Skills and Experience Programming Languages TypeScript (version 3.x or higher) Node.js (version 16 or higher) Backend frameworks such as Hapi.js , or alternatives including Express , Fastify , or NestJS Authentication and authorization using JWT and OAuth2 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 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 Preferred 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 Additional Bonuses Fintech, payments, or e commerce domain experience Messaging systems such as Kafka , RabbitMQ , or Redis Pub/Sub Puppeteer for PDF or receipt generation Our Commitment 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. Verifone is also committed to compliance with all fair employment practices regarding citizenship and immigration status. Create a Job Alert Interested in building your career at Verifone? Get future opportunities sent straight to your email. Apply for this job indicates a required field First Name Last Name Email Phone Country Phone Location (City) Resume/CV Enter manually Accepted file types: pdf, doc, docx, txt, rtf Enter manually Accepted file types: pdf, doc, docx, txt, rtf Have you ever been employed by Verifone? Select How did you hear about us? Select If referred by a Verifone employee, please let us know who referred you? (applicable only if you have responded as 'Referral' to the prior question) Are you flexible on your working location? Select Are you currently a citizen of any of these countries: Cuba, Iran, North Korea, Syria Select Will you now or in the future require sponsorship for employment visa status (e.g. H-1B visa status)? Select What are your salary expectations for this role? LinkedIn Profile Website By submitting your application, you are providing consent:(i) you confirm that the information you have provided is accurate and complete to the best of your knowledge. You will inform the team immediately if you become aware of any errors or inaccuracies post submission;(ii) you acknowledge you are applying for a role at Verifone Inc., further details of which will be provided at a later stage of the recruitment process if applicable;(iii) you confirm you have read and understood the terms of our privacy policy.If you have questions about our privacy practices, please email . Select Global Demographic Sets (Non US) You are invited to voluntarily self-identify the following personal data points. Verifone is an equal opportunity employer that is committed to diversity and inclusion. We are dedicated to providing unbiased and fair work opportunities to employees irrespective of their race, age, gender, religion, or ethnicity. As such, voluntarily providing this information helps the company generate the most accurate EEO data to ensure we are upholding these goals. Even if you wish to keep this data private, you have the opportunity to participate in our efforts by selecting our "Do not wish to answer" option in the fields below. Submission of this information is voluntary and refusal to provide it will not subject you to any adverse treatment. The information is kept confidential and is only used in accordance with provisions of applicable laws, executive orders and regulations, including those that require information to be summarized and reported to the federal government for civil rights enforcement. When reported, data will not identify any specific individual. Do you have a disability or chronic condition (physical, visual, auditory, cognitive, mental, emotional, or other) that substantially limits one or more of your major life activities, including mobility, communication (seeing, hearing, speaking), and lear Select