Abubakar Yusuf

Developed advanced internal diagnostic tools, accelerating root cause analysis for distributed cache platform issues, and automated mitigation jobs, reducing CPU, memory, and connectivity failures at scale.

Spearheaded a platform-wide reliability and diagnostics initiative, redesigning observability dashboards, refining monitoring alerts, and integrating high-signal metrics with Geneva Synthetics to proactively identify and prevent system failures.

Managed core services for global directory provisioning and license management, successfully delivering partition-specific buildout requests and partner-facing endpoints while resolving complex customer-raised issues for global tenants.

Orchestrated the end-to-end delivery of cross-team features spanning Cache, Group Licensing, and Tenant Management, enhancing critical functionalities across multiple domains.

Resolved complex production incidents during on-call rotations, addressing performance bottlenecks and client connectivity failures across multiple services; authored detailed troubleshooting guides and established a centralized Team Learnings catalog to enhance operational excellence and team readiness.

Delivered end-to-end API features across Wallet, Bills, Auth, and Transaction microservices, significantly enhancing critical business functionality for the platform.

Spearheaded the development and implementation of onboarding flows for new user categories (Dot SME and DSA), successfully expanding platform accessibility and user base.

Managed third-party API integrations for Bills services, improving service reliability and customer satisfaction by enabling seamless provider switching.

Redesigned the legacy notification system utilizing FreeMarker and Amazon SQS, achieving faster and more reliable HTML-based messaging and improving customer communication during transactions and outages.

Collaborated with operations to investigate fraud, identifying suspicious patterns in transaction data and developing internal dashboard endpoints, which enhanced fraud detection speed and reduced manual investigation effort by 30%.

Resolved production incidents during on-call rotations, implementing root cause fixes and authoring comprehensive troubleshooting guides across microservices to improve system stability.

Designed and implemented robust RESTful API flows using Spring Boot, enhancing system interoperability and performance.

Resolved critical Heroku build pack detection issues, successfully deploying the Stardome application to Heroku and ensuring operational continuity.

Led the successful migration of Stardome's core service from Heroku to Azure App Service, optimizing cloud infrastructure and scalability.

Developed and demonstrated a proof-of-concept for integrating Spring Cloud Gateway as a centralized reverse proxy, streamlining microservices architecture and improving API management.

Implemented robust test suites and integrated continuous integration workflows using GitHub Actions, improving code quality and accelerating deployment cycles.