Senior Software Engineer - (API Banking)

We are seeking a highly skilled Senior Software Engineer with strong expertise in Node.js, JavaScript, TypeScript, and backend engineering to join our Digital Products engineering team. The ideal candidate will have strong hands-on experience designing and developing scalable, high-performance RESTful APIs, distributed services, and enterprise-grade backend applications. The role requires strong expertise in Node.js development, API integrations, performance optimization, testing practices, and modern cloud-native engineering environments. The candidate should have experience working within Agile teams and possess strong knowledge of banking, financial services, fintech, or enterprise digital platforms. **Requirements** Key Responsibilities * Design, develop, and maintain scalable backend applications and RESTful APIs using Node.js technologies. * Build highly available, secure, and performance-oriented backend services supporting enterprise digital platforms. * Develop and maintain API integrations, microservices, and distributed service architectures. * Write clean, maintainable, secure, and well-tested code following engineering best practices. * Perform performance tuning, debugging, monitoring, and optimization of backend applications. * Develop and maintain unit tests and ensure strong code quality standards across applications. * Collaborate with architects, product teams, QA, DevOps, and business stakeholders to deliver high-quality technology solutions. * Participate in code reviews, technical discussions, architecture decisions, and engineering improvements. * Troubleshoot complex production issues across distributed services environments. * Contribute to CI/CD automation, deployment improvements, and engineering process enhancements. * Research, evaluate, and benchmark modern technologies to improve application performance and scalability. Required Technical SkillsBackend Development * Minimum 5 years of hands-on coding experience with Node.js and JavaScript. * Strong expertise in Node.js backend development frameworks. * Strong experience designing and developing scalable RESTful APIs. * Hands-on experience with TypeScript (minimum 1 year). * Strong understanding of asynchronous programming and backend application architecture. API & Integration * Practical experience with GraphQL. * Experience with API Gateway integrations such as 3Scale or similar platforms. * Strong understanding of authentication and authorization mechanisms including: * JWT * OAuth * Token-based authentication * Secure API practices Database & Messaging * Strong experience working with databases and data-driven applications. * Experience with distributed messaging and queue-based architectures including: * Kafka * AWS messaging services * Microsoft Azure messaging services * Pushpin or similar technologies Cloud & DevOps * Strong understanding of CI/CD principles and modern software delivery practices. * Hands-on experience with containerization technologies including: * Docker * Kubernetes * Experience troubleshooting and supporting applications within distributed cloud environments. Functional Skills * Experience following strong coding, security, unit testing, and documentation standards. * Experience designing reliable and scalable application architectures. * Ability to contribute to technical design discussions and engineering decisions. * Experience working in Agile/Scrum delivery environments. * Ability to work effectively within enterprise technology environments. * Experience in Banking, Financial Services, FinTech, or Digital Payments platforms is highly preferred. Required Soft Skills * Strong problem-solving and analytical skills. * Ability to influence technical decisions across multiple teams. * Strong collaboration skills with engineering, product, architecture, and business teams. * Self-driven and capable of owning deliverables with minimal supervision. * Excellent communication skills with the ability to present technical concepts to senior stakeholders. * Strong ownership mindset with focus on quality, reliability, and continuous improvement. Preferred Domain Experience * Digital Banking Platforms * API Banking * Merchant Acquiring Platforms * Payments & Financial Services * Enterprise Digital Products Education Bachelor’s Degree or Postgraduate qualification in Computer Science, Information Technology, Engineering, or related discipline (or equivalent industry experience).