We believe that businesses of all sizes deserve better financial and payment products and services. Traditionally, businesses of all sizes are let down by slow applications, protracted onboarding, opaque pricing, restrictive contracts and forced to use outdated solutions that no longer meet the innovative requirements of modern business. We started our journey four years ago, and have since helped tens of thousands of Australian businesses reduce the complexity and time taken to take and make payments, manage complex fleets of payment hardware, store and save money and lead the conversation in business-to-business fintech. We’re now taking our next steps in expanding our industry and world leading capabilities into the United Kingdom. Our company is backed by leading global VCs, and brings together experienced payment and tech industry professionals who are aiming to redefine business banking and the way businesses get paid by their customers. If you are passionate, curious, hungry and seeking an opportunity to make your mark on Fintech in the United Kingdom, with the strength of a global team behind you - we’d love to talk to you. This is a unique opportunity to shape, direct and build better financial services for all UK businesses. Role Description As our Backend Engineering Lead, you will be responsible for a wide range of critical backend systems, including our Payment Gateway, Settlement, Transaction Fraud Monitoring, Datalake Service, and Core Banking System. You'll oversee their development, deployment, and ongoing enhancements, while also ensuring their reliability, performance, and stability in production. This hybrid role requires a unique blend of software engineering and a deep Site Reliability Engineering (SRE) mindset. You’ll use your expertise in software, systems, and cloud engineering to tackle complex production challenges, drive automation, and ensure our services are both innovative and exceptionally dependable. To excel in this role, you should be a people-oriented leader who is easy to work with, adaptable, and flexible, all while maintaining high standards. You will have extensive experience in software engineering, DevOps, project management, incident management, and team and stakeholder management. You'll also be comfortable managing a mix of direct reports and shared teams, and will be supported by our global teams of engineers, QAs, SREs, and DevOps professionals. Responsibilities 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. Skills & Experiences Minimum of a Bachelor degree in software engineering (or related) 4 years of working experience in a technical hands-on software engineering role 2 years of working experience in a technical leadership role Demonstrable experiences in developing mission-critical systems AWS Technologies (e.g. ECS, DynamoDB, Lambda, Aurora, SQS, SNS, VPC, Private Link, etc.) Multi-threading & Socket Programming: Java Spring Applications Typescript and Node.js Applications Architectures - Event Sourcing, CQRS, Polyglot Database, Traditional OLTP, OLAP DevOps - Provisioning-based Infrastructure-as-Code, CI/CD QA - Practical TDD, BDD Experiences in payment domains Proven track record in developing and maintaining mission-critical, high-load production systems with 99.999% SLA Proven experience in supporting rapid and agile product deployments across different environments - dev, test, stress-testing, staging/production. Motivational team management Cost control Bonus points Experience in working within a high-growth environment in the financial services or fintech industry Experience in other cloud platforms (Azure, Google) Experience in other programming languages Experience with financial regulations and compliance requirements (e.g. GDPR, PCI-DSS) Like the rest of the team, you’ll benefit from - An opportunity to shape and build the future of Zeller from the ground up in the UK - A competitive salary package, including equity from an early stage; - A balanced, progressive, and supportive work environment; - Endless learning and development opportunities; -Excellent parental leave and other leave entitlements; -Being part of a fast-growing and ambitious scale-up. At Zeller, we celebrate diverse perspectives and experiences, and strongly encourage people of all backgrounds and identities to apply to join our team. We want you to be able to show up at your best during the recruitment process. Please, let us know if you require any accommodations during your interview process with us. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.