David Yaya Email & Phone Number

Nigeria

• Built an integrated cloud-hosted and on-premise solution that provides better scalability and efficiencies, also reduced cost in terms of infrastructure build-up and application maintenance.• Created NPM and Poetry CI/CD pipeline to build and deploy binary applications.• Actively participated in defining and designing the migration approach of .NET web projects that are being moved to Microsoft private cloud platform.• Developed a well-defined migration model to port applications on Azure that helped in reducing overall migration costs, and also helped in reducing the cost of overall infrastructure requirements.• Deploy And Monitor Azure App Service Web Apps and also maintained CI/CD pipeline for continuous deployment of cloud resources in Azure.• Created a Transformation Process Framework from Discovery to Execution.• Provided the complete architecture and development of the application based on Microsoft Windows Azure, SQL Azure.• Collaboration and communication between software developers and other IT professionals while automating software delivery process and infra changes.• Auto scaling depending on the need and anticipated demand and identified traffic patterns leading to efficient utilization and lower cost of ownership.• Provided higher availability with guaranteed uptime in cloud applications.• Integrated Docker with Azure Kubernetes Service (AKS) In a CICD Pipeline that builds stateless applications.• Designed and maintained AWS-based infrastructure, utilizing EKS for container orchestration, S3 for storage solutions, and VPC for enhanced network security.• Automated AWS infrastructure scaling using EC2, RDS, and S3 with CloudFormation and Terraform, ensuring high availability and minimizing downtime.• Developed and maintained Docker containers and Kubernetes clusters for scalable applications; utilized Prometheus and Grafana for monitoring.

Nigeria

• Architected and managed multi-cloud solutions on AWS, Azure, and GCP, optimizing resource allocation for scalability and cost-efficiency.• Designed and implemented CI/CD pipelines using Jenkins and GitLab, automating deployment workflows to enhance delivery speed and reduce errors.• Automated infrastructure provisioning and configuration management using Terraform and Ansible, reducing setup time for new environments by up to 70%.• Containerized applications using Docker and managed scalable deployments with Kubernetes, ensuring high availability and meeting performance SLAs.• Developed custom scripts in Python, Bash, and PowerShell to streamline operations and improve process efficiency.• Monitored infrastructure using Prometheus, Grafana, and Azure Monitor, identifying performance bottlenecks and implementing optimizations to enhance reliability.• Led efforts in diagnosing and resolving complex cloud and DevOps-related issues, maintaining high system availability and minimizing downtime.• Provided guidance to junior team members, sharing best practices and facilitating knowledge transfer sessions to upskill the team.• Collaborated closely with developers to build and maintain efficient release pipelines, ensuring smooth and reliable application deployments.• Identified productivity barriers and standardized deployment processes, improving deployment efficiency by implementing best practices, resulting in a 30% reduction in deployment time.• Automated routine tasks using Azure Automation and Azure CLI, reducing manual effort by 50% and enhancing operational efficiency.• Developed comprehensive documentation and provided training for team members on Azure cloud practices and tools, enhancing overall team capability and knowledge.• Managed and maintained Azure Kubernetes Service (AKS) clusters, enhancing application scalability and reliability for over 50 microservices.

Nigeria

• Architected and migrated complex systems to cloud platforms (Alibaba, Huawei, Tencent)• Implemented optimization strategies that substantially increased the speed and efficiency of client environments by 20%.• Designed and executed cost-saving initiatives, delivering measurable ROI for clients across various industries.• Implemented DevOps practices to streamline development and deployment processes.• Enhanced network connectivity and reduced latency in distributed environments by 40%.• Designed and implemented scalable, secure cloud solutions on platforms such as Azure, AWS, and GCP, aligning with business requirements and best practices.• Developed and managed CI/CD pipelines to automate software deployments, improving release cycles and reducing manual intervention.• Architected and maintained Infrastructure as Code (IaC) using Terraform, Ansible, and CloudFormation, reducing setup times and enhancing consistency across environments.• Configured and managed containerized applications with Docker and Kubernetes, ensuring high availability and scalability for mission-critical applications.• Implemented security protocols, including identity and access management (IAM), encryption, and network segmentation, to safeguard cloud resources and data integrity.• Monitored system performance and reliability with tools like Prometheus, Grafana, and CloudWatch, proactively addressing issues to maintain high uptime.• Collaborated with cross-functional teams to understand requirements and design cloud architectures that drive operational efficiency and cost-effectiveness.

Netherlands

• Deliver training on Data Engineering best practices to classes of 10-15 students. Session topics cover ETL, data modeling, warehousing, big data, and more.• Develop course content and labs to provide applied learning on the latest DE tools like Airflow, DBT, Spark, Kafka, etc.• Optimized data workflows to improve data quality, processing speed, and scalability.• Collaborated with cross-functional teams to gather requirements and provide data solutions for business needs.• Conducted performance tuning and troubleshooting of data pipelines.• Mentored junior data engineers and provided guidance on best practices and industry trends.• Developed and delivered training sessions on data engineering concepts and tools for internal teams.• Built and maintained data lakes and data warehouses for efficient data storage and retrieval.• Created data models and schemas to support reporting and analytics requirements.• Implemented real-time data processing solutions using Apache Kafka and Spark Streaming.• Wrote custom Python and SQL scripts to perform data transformations and aggregations.• Assisted in data governance and compliance efforts to ensure data security and privacy.

Ogun State, Nigeria

• I played a crucial role in maintaining the integrity of the organization's computer networks, ensuring a stable and reliable technological foundation for the company.• Another vital aspect of my role was managing user access to various IT services, including emails, shared drives, and custom applications. By overseeing user permissions and access levels, I ensured that employees had the appropriate privileges to carry out their tasks effectively while maintaining security and data confidentiality.• I actively contributed to the growth and development of the team. I took on the responsibility of training junior staff members, imparting essential skills and knowledge to enable them to excel in their roles.• I actively participated in the evaluation and integration of new technologies that could enhance our operations.• To ensure seamless IT operations, I collaborated closely with various departments, understanding their unique technology requirements and tailoring solutions to suit their needs.

Lagos, Nigeria

- I worked with engineers and built prototypes, wireframes, and detailed hi-fi designs while leading the design of their worldwide brand to make the project a reality. - Updated and improved the user experience and accessibility of their Mobi website, which resulted in a 20% increase in sales.- improving revenue and user attention on their website by incorporating concepts learned via research and discovery into something helpful for our clients.- I conducted qualitative and quantitative research to better understand user issues.