Senior Software Engineer (Backend)

Job Application for Senior Software Engineer (Backend) at Super Payments Back to jobs Senior Software Engineer (Backend) London Apply Super Payments Our mission is to use data and AI to make payments free for businesses, so that everyone wins . By removing payment fees and passing savings back to customers, we are disrupting the payments industry while helping businesses increase sales and loyalty. With Buy Now, Pay Later (BNPL) free for merchants and 0% card payment processing , Super gives businesses a powerful way to reduce costs, grow sales, and reward customers. Already trusted by thousands of businesses and more than 4 million customers , Super is growing fast, supported by leading investors including Accel, Union Square Ventures and LocalGlobe, and led by Samir Desai , founder and former CEO of Funding Circle. Our Values Customer obsessed: We only succeed when our customers do. Move fast : Build, test and improve quickly. Progress matters more than perfection. Own it : Be accountable, solve problems, and make it happen. Be open : Act with honesty and respect. Transparency builds trust. Win together : Collaboration beats ego every time. Our Technology We leverage the latest tools and technologies to create a seamless, customer-centric digital experience. Our core stack is built around Node.js, TypeScript, and NestJS, with a front-end powered by React. We deploy using AWS cloud services and Kubernetes, ensuring scalability and resilience. Infrastructure as Code is fundamental to our approach, and we use Terraform to manage our cloud resources. Our architecture is cloud-native, event-driven, and distributed, built on Amazon EventBridge and SQS, with services exposed via REST. We are driven by data science, machine learning, and analytics, using multi-variant testing to personalise user experiences across every digital channel. However, it’s not just about the technology. We are passionate about continuous delivery, automation, and rapid iteration. Our deployment pipeline is fully automated, covering everything from branching, building, testing, and shipping to monitoring and alerting—allowing us to focus on delivering value to our customers. Technology is at the heart of our business, and we value diverse perspectives. Bring your ideas, experience, and problem-solving mindset—we’ll navigate obstacles together. What You’ll Be Doing Spearheading the design and evolution of our B2B API, personalisation and payments infrastructure. Collaborating with UX and product teams in discovery, ideation, and problem-solving. Contributing to engineering-wide initiatives, participating in technical discussions, architecture decisions, and best practice sharing. Developing a deep understanding of our business, customers, and domain—applying your judgement to make autonomous decisions. Mentoring and supporting the growth of our engineering community, sharing knowledge through pairing, talks, and external speaking opportunities. We’d love to hear from you if you: Have at least 8 years of experience in software engineering. Have worked on any one of the following areas: Financial Services in areas like payments/wealth management/banking The payments infrastructure at a large eCommerce site High-volume transaction scale-up (e.g., betting, gaming, or streaming) Have a delivery-focused mindset, using agile practices to drive team success. Bring experience with a variety of programming languages. Are willing to work with Node.js, TypeScript, NestJS, and AWS cloud technologies. Have experience designing and provisioning cloud-based infrastructure, using Infrastructure as Code (Terraform). Ideally, have worked with Kubernetes and understand the fundamentals of containerized deployments. Have built and supported publicly accessible REST APIs. Understand application development, continuous delivery, test automation, and security within distributed services. Have a track record of improving code quality, performance, stability, and scalability. Are comfortable working in a fast-paced, evolving start-up environment. Can work independently, tackling ambiguous challenges and driving solutions forward. To learn more about about engineering at Super Payments follow this link. *The stated experience and background is a guide and does not preclude applications from candidates with more or less experience, provided the requisite skills can be demonstrated. Our Benefits - here’s a few and more to come …. Tax advantage Share Options Flexible working model Work from home set up Learning & Development opportunities Contributory Pension Scheme Team lunch and social evenings Your birthday off, plus one Revival day If you are excited about sharing the adventure, joining a growing team with big ambitions and you are really great at what you do, then apply now! Super Payments is an equal opportunity employer, embracing diversity in all its forms and fostering an inclusive environment. The company will not unlawfully discriminate on grounds of gender, sexual orientation, marital or civil partner status, gender reassignment, race, religion or belief, colour, nationality, ethnic or national origin, disability or age, neurodiversity status, pregnancy or trade union membership. Please let us know if you require any reasonable adjustments at any point during the application and/or recruitment process. Create a Job Alert Interested in building your career at Super Payments? Get future opportunities sent straight to your email. Create alert Apply for this job * indicates a required field Autofill with MyGreenhouse First Name * Last Name * Email * Phone Country * Phone * Resume/CV * Attach Attach Dropbox Google Drive Enter manually Enter manually Accepted file types: pdf, doc, docx, txt, rtf Cover Letter Attach Attach Dropbox Google Drive Enter manually Enter manually Accepted file types: pdf, doc, docx, txt, rtf How many years experience do you have with Node.js, TypeScript & NestJS? * Please kindly let us know your salary expectations and notice period to ensure that we are aligned. * Please kindly let us know if you require Sponsorship for this role? * LinkedIn Profile GDPR * Select... When you apply to a job on this site, the personal data contained in your application will be collected by Super Payments Ltd (“Controller”), which is located at 123 Buckingham Palace Road, London, United Kingdom, SW1W 9SR (and can be contacted by emailing ). Super Payments Ltd’s data protection officer is Jag Thind, who can be contacted at . Your personal data will be processed for the purposes of managing Super Payments Ltd recruitment related activities, which include setting up and conducting interviews and tests for applicants, evaluating and assessing the results thereto, and as is otherwise needed in the recruitment and hiring processes. Such processing is legally permissible under Art. 6(1)(f) of Regulation (EU) 2016/679 (General Data Protection Regulation) as necessary for the purposes of the legitimate interests pursued by the Controller, which are the solicitation, evaluation, and selection of applicants for employment. Your personal data will be shared with Greenhouse Software, Inc., a cloud services provider located in the United States of America and engaged by Super Payments Ltd to help manage its recruitment and hiring process on Super Payments Ltd’s behalf. Accordingly, if you are located outside of the United States, your personal data will be transferred to the United States once you submit it through this site. Because the European Union Commission has determined that United States data privacy laws do not ensure an adequate level of protection for personal data collected from EU data subjects, the transfer will be subject to appropriate additional safeguards under the standard contractual clauses. You can obtain a copy of the standard contractual clauses by contacting us at Your personal data will be retained by Super Payments Ltd as long as Super Payments Ltd determines it is necessary to evaluate your application for employment. Under the GDPR, you have the right to request access to your personal data, to request that your personal data be rectified or erased, and to request that processing of your personal data be restricted. You also have the right to data portability. In addition, you may lodge a complaint with an EU supervisory authority. Voluntary Self-Identification For government reporting purposes, we ask candidates to respond to the below self-identification survey. Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiring process or thereafter. Any information that you do provide will be recorded and maintained in a confidential file. As set forth in Super Payments’s Equal Employment Opportunity policy, we do not discriminate on the basis of any protected group status under any applicable law. Gender Select... Are you Hispanic/Latino? Select... Race & Ethnicity Definitions If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection. As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measure the effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categories is as follows: A "disabled veteran" is one of the following: a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or a person who was discharged or released from active duty because of a service-connected disability. A "recently separated veteran" means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service. An "active duty wartime or campaign badge veteran" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense. An "Armed forces service medal veteran" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985. Veteran Status Select... Voluntary Self-Identification of Disability Form CC-305 Page 1 of 1 OMB Control Number 1250-0005 Expires 04/30/2026 Why are you being asked to complete this form? We are a federal contractor or subcontractor. The law requires us to provide equal employment opportunity to qualified people with disabilities. We have a goal of having at least 7% of our workers as people with disabilities. The law says we must measure our progress towards this goal. To do this, we must ask applicants and employees if they have a disability or have ever had one. People can become disabled, so we need to ask this question at least every five years. Completing this form is voluntary, and we hope that you will choose to do so. Your answer is confidential. No one who makes hiring decisions will see it. Your decision to complete the form and your answer will not harm you in any way. If you want to learn more about the law or this form, visit the U.S. Department of Labor’s Office of Federal Contract Compliance Programs (OFCCP) website at . How do you know if you have a disability? A disability is a condition that substantially limits one or more of your “major life activities.” If you have or have ever had such a condition, you are a person with a disability. Disabilities include, but are not limited to: Alcohol or other substance use disorder (not currently using drugs illegally) Autoimmune disorder, for example, lupus, fibromyalgia, rheumatoid arthritis, HIV/AIDS Blind or low vision Cancer (past or present) Cardiovascular or heart disease Celiac disease Cerebral palsy Deaf or serious difficulty hearing Diabetes Disfigurement, for example, disfigurement caused by burns, wounds, accidents, or congenital disorders Epilepsy or other seizure disorder Gastrointestinal disorders, for example, Crohn's Disease, irritable bowel syndrome Intellectual or developmental disability Mental health conditions, for example, depression, bipolar disorder, anxiety disorder, schizophrenia, PTSD Missing limbs or partially missing limbs Mobility impairment, benefiting from the use of a wheelchair, scooter, walker, leg brace(s) and/or other supports Nervous system condition, for example, migraine headaches, Parkinson’s disease, multiple sclerosis (MS) Neurodivergence, for example, attention-deficit/hyperactivity disorder (ADHD), autism spectrum disorder, dyslexia, dyspraxia, other learning disabilities Partial or complete paralysis (any cause) Pulmonary or respiratory conditions, for example, tuberculosis, asthma, emphysema Short stature (dwarfism) Traumatic brain injury Disability Status Select... PUBLIC BURDEN STATEMENT: According to the Paperwork Reduction Act of 1995 no persons are required to respond to a collection of information unless such collection displays a valid OMB control number. This survey should take about 5 minutes to complete. Submit application Powered by Greenhouse