Zeller

Risk

• Support fraud monitoring and risk controls across merchant acquiring products, including card acceptance, authorisation, clearing, and settlement
• Contribute fraud and risk input across the end-to-end acquiring lifecycle, from merchant onboarding and underwriting through to live transaction monitoring and settlement
• Work with card schemes (Visa/Mastercard), acquiring partners, processors, and gateways to manage operations and resolve acquiring-related issues
• Identify and monitor fraud typologies relevant to merchant acquiring (e.g. card-not-present fraud, friendly fraud, chargeback abuse), supporting mitigation strategies)
• Support merchant KYB/KYC and underwriting, working closely with Risk and Compliance to meet scheme rules and UK regulatory requirements
• Monitor and help manage disputes, chargebacks, refunds, and scheme queries, ensuring thresholds and SLAs are met
• Demonstrate an understanding of payments, including FPS and UK domestic (UK-to-UK) payment flows, and PCI DSS requirements
• Operate in line with relevant regulatory and scheme guidelines, including card scheme rules, AML/CTF requirements, and industry standards

Risk Analyst

Software Engineer

• Leading the implementation and delivery of major product features;
• Uplifting and setting the standard for code quality, design patterns and architectural choices;
• Performing code reviews, contributing to a testing and automation culture, and supporting our quality practices;
• End-to-end ownership and support of the features you build and of the quality and performance of the Zeller mobile app.

Senior React Native Engineer

Backend Engineer

• Working as part of our Financial Services Engineering team, you will implement and deliver new products and features
• Meet and set the standard for code quality and testing practices in the team
• Perform code reviews, contribute to a testing and automation culture, and support our quality practices
• End-to-end ownership and support the features you build and of the quality and performance of the Zeller platform

Backend Software Engineer, Node.js/Typescript, AWS

DevOps Engineer

• Oversee the end-to-end development, enhancement, and agile deployment of all UK backend systems.
• Collaborate with the Global Technical Committee to contribute to and adopt best practices, platform codes, and frameworks.
• Manage suppliers and stakeholders to deliver on business requirements through system enhancements and maintenance. Ensuring high availability in production systems is a critical responsibility of this role.
• Own the availability, scalability, latency, and performance of mission-critical services, managing and upholding a 99.999% SLA.
• Design, write, and deliver software and automation to improve system reliability and reduce manual procedures.
• Build robust automation for monitoring, and proactive issue detection to prevent problem recurrence.
• Lead the incident management process, conduct blameless post-mortems, and drive corrective actions to ensure continuous improvement.

Engineering and SRE Lead – Backend

SDET

• Create detailed, comprehensive and well-structured test plans and test cases
• Estimate, prioritize, plan and coordinate testing activities
• Design, develop and execute automation scripts.
• Identify, record, document thoroughly and track bugs.
• Perform thorough regression testing when bugs are resolved.
• Develop and apply testing processes for new and existing products.
• Collaborate with internal teams (e.g. developers and product managers) to identify system requirements
• Monitor debugging process results
• Track quality assurance metrics, like defect densities and open defect counts
• Recommend improvements in software to enhance user experience
• Works together with the software developer to enhance and improve programs
• Stay up-to-date with new testing tools and test strategies

SDET Engineer, Javascript, AWS

Frontend Engineer

• Working as part of our Payments Engineering team building new ways for Zeller and third party products to integrate with each other using web sockets and GO.
• Meet and set the standard for code quality and testing practices in the team
• Perform code reviews, contribute to a testing and automation culture, and support our quality practices
• End-to-end ownership and support the features you build and of the quality and performance of the Zeller platform

Senior Engineer, Go/Typescript, AWS

Analyst

• Develop, maintain, and scale a robust automation framework using Maestro to automate both existing and new features across the Zeller application.
• Leverage your expertise in automation, including using Percy for visual regression and Maestro/Javascript for end-to-end test cases on Android Terminals.
• Champion best testing practices, proactively promote the adoption of new tools and AI to elevate quality, enhance automation, and accelerate product development velocity.
• Act as the quality and user path expert for the Zeller product, identifying and testing all potential user paths and critical edge cases.
• Serve as a domain specialist in key areas such as payments processing, L3 testing, and Point-of-Sale (POS) integration.
• Collaborate with cross-functional teams (Product Leaders, Engineers, Designers) and multiple product teams (mobile, web UI, POS devices) to ensure feature completeness and customer value across the entire product suite.

Quality Analyst

Account Executive

• Prospecting to small and medium-sized businesses through outbound lead generation, door-to-door, cold calling / email, referrals and more, supplemented by a healthy inbound lead pipeline.
• Build a deep understanding of the pain points and requirements of business owners, then formulate the right Zeller solution to exceed their expectations.
• Manage a leads and deals pipeline with outstanding hygiene and attention to detail.
• Own the full sales cycle including planning, cold calling, qualifying, obtaining information, due diligence, and closing new deals to achieve in order to exceed your individual targets.
• Translate complex merchant financial and payments problems into a succinct and sellable solution.
• Deliver an outstanding first impression for Zeller’s merchants by using storytelling, case studies, pitch decks and industry news to inspire them about how we are the right business banking partner for them.
• Develop commercially sound deals across a wide variety of customer use cases, verticals, and complex economics.
• Stay up-to-date with SME, technology, fintech, payments, competitor and industry trends that are relevant to your merchants.
• Collaborate with members across Sales, Marketing, Customer Success, Product and Operations to relay product feedback.