Senior Expert - Software Engineer (Checkout)

Qiddiya Digital is seeking highly experienced and hands\-on Senior Expert of Software Engineer – Digital Platforms to take technical ownership of critical digital product domains across Qiddiya’s ecosystem. This is a senior individual contributor role with strong technical authority. While the position has no direct line\-management responsibility, it will provide technical leadership to vendor engineering teams and remain accountable for the quality, resilience, reliability, security, performance, and operational readiness of the assigned platform. A key objective is to eliminate black\-box delivery, retain critical knowledge within Qiddiya, and ensure Qiddiya remains in full control of its digital platforms. Key Responsibilities * Take end\-to\-end technical ownership of the assigned digital domain. * Define and maintain the target architecture, engineering standards, and technical roadmap. * Provide hands\-on technical leadership across design, implementation, integration, release, and production operations. * Lead and challenge vendor engineering teams, ensuring compliance with Qiddiya Digital standards. * Review and approve architecture, APIs, data models, integrations, code quality, and major technical decisions. * Validate vendor deliverables using clear acceptance criteria and measurable technical evidence. * Ensure solutions are resilient, reliable, scalable, secure, observable, maintainable, and cost efficient. * Define and monitor technical KPIs, service\-level objectives, availability, latency, recovery, and performance targets. * Ensure appropriate automated testing, CI/CD controls, monitoring, logging, tracing, and alerting are in place. * Validate release plans, rollout strategies, rollback procedures, capacity testing, disaster recovery, and production readiness. * Lead technical incident management, root\-cause analysis, and permanent remediation. * Identify and manage technical debt, architectural risks, recurring incidents, and operational weaknesses. * Maintain architecture documentation, technical decisions, runbooks, and support procedures. * Drive knowledge transfer and ensure Qiddiya can independently operate and evolve the platform. * Promote reusable capabilities and common engineering practices across Qiddiya’s digital assets. **Requirements** * Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related discipline. * Extensive software\-engineering experience in a Lead, Staff, Principal Engineer, Technical Lead, or senior architecture role. * Strong hands\-on engineering capability and the ability to challenge implementation\-level decisions. * Experience designing and operating large\-scale, distributed, cloud\-native, and highly available platforms. * Experience with customer\-facing digital products, commerce, payments, loyalty, identity, ticketing, mobile, or similar platforms. * Strong knowledge of APIs, microservices, event\-driven architecture, distributed systems, data consistency, and failure recovery. * Strong experience with resilience, observability, performance engineering, security, automated testing, CI/CD, and production operations. * Experience defining technical KPIs, service\-level objectives, non\-functional requirements, and acceptance criteria. * Proven experience overseeing vendors, system integrators, or outsourced engineering teams. * Strong incident\-management, root\-cause\-analysis, and problem\-management experience. * Strong communication, stakeholder\-management, and technical decision\-making skills