Geoffrey S.

Delivered enterprise K8s infrastructure on Azure AKS, OpenShift, and bare-metal with 𝗕𝗮𝗰𝗸𝘀𝘁𝗮𝗴𝗲 𝗜𝗗𝗣 driving developer self-service and onboarding automation. Architected 𝗢𝗽𝗲𝗻𝗦𝗵𝗶𝗳𝘁 platforms leveraging 𝗢𝗗𝗙 (OpenShift Data Foundation), 𝗔𝗖𝗦 (Advanced Cluster Security), and 𝗔𝗖𝗠 (Advanced Cluster Management) for multi-cluster orchestration and governance. 𝗖𝗼𝗿𝗲 𝗧𝗲𝗰𝗵:   • 𝗕𝗮𝗰𝗸𝘀𝘁𝗮𝗴𝗲 𝗜𝗗𝗣 for service catalog, scaffolding templates & golden paths   • 𝗢𝗽𝗲𝗻𝗦𝗵𝗶𝗳𝘁 𝘀𝘁𝗮𝗰𝗸: ODF for persistent storage, ACS for security posture management, ACM for multi-cluster lifecycle   • 𝗚𝗶𝘁𝗢𝗽𝘀 (ArgoCD/Flux) + declarative cluster management with automated rollbacks   • 𝗦𝗲𝗿𝘃𝗶𝗰𝗲 𝗺𝗲𝘀𝗵 (Istio) + Cilium CNI with eBPF-based security and network policies   • 𝗖𝗜/𝗖𝗗 (Azure DevOps) + security scanning (Trivy, Kyverno) + policy-as-code enforcement   • 𝗢𝗯𝘀𝗲𝗿𝘃𝗮𝗯𝗶𝗹𝗶𝘁𝘆 (Prometheus, Grafana, distributed tracing) with custom dashboards and alerting   • 𝗦𝗲𝗰𝘂𝗿𝗶𝘁𝘆 𝗵𝗮𝗿𝗱𝗲𝗻𝗶𝗻𝗴: RBAC, mTLS, Pod Security Standards, Azure AD/OpenShift OAuth integration, Key Vault CSI   • 𝗜𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲-𝗮𝘀-𝗖𝗼𝗱𝗲: Terraform/Ansible for cluster provisioning and configuration management   • 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝘁𝗼𝗼𝗹𝗶𝗻𝗴: Integrated Backstage with Tekton pipelines, Quay registry, and OpenShift Dev Spaces   • 𝗠𝘂𝗹𝘁𝗶-𝘁𝗲𝗻𝗮𝗻𝗰𝘆: Namespace isolation, resource quotas, network segmentation via Cilium policies   • 𝗖𝗼𝘀𝘁 𝗼𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻: 35% reduction via cluster autoscaler, VPA, and resource rightsizing strategies

With over 15 years of experience managing and processing data across Azure Cloud ecosystems, on-premise platforms, Cloudera, Informatica, Kubernetes, and Oracle technologies, I bring a robust skill set to both greenfield and brownfield projects. My expertise spans the development of cutting-edge solutions, optimization of legacy systems, and seamless integration across diverse environments. Key Highlights: Python Proficiency: Developed and optimized applications using Flask, Pandas, and NumPy, enabling efficient data processing and analytics workflows. API Engineering: Designed RESTful APIs to integrate seamlessly with data pipelines and analytics ecosystems, bridging cloud and on-premise technologies. Data Analytics & Visualization: Performed advanced data manipulation and exploratory data analysis (EDA) with Pandas, leveraging visualization tools like Matplotlib and Plotly to deliver actionable insights. Machine Learning Expertise: Applied statistical modeling and machine learning techniques to uncover patterns and drive data-informed decision-making. Greenfield & Brownfield Expertise: Successfully implemented innovative solutions in new IT infrastructures while modernizing and optimizing existing systems to meet evolving business needs. CI/CD & Agile Practices: Ensured high-quality and maintainable development by implementing CI/CD workflows and adhering to Agile methodologies, fostering collaboration and efficiency. This combination of technical expertise, adaptability, and a focus on innovation positions me as a key player in delivering impactful solutions across diverse IT landscapes. Whether driving transformation in emerging projects or enhancing legacy systems, I am committed to leveraging technology to solve complex challenges and deliver measurable results.

As a Senior Big Data Engineer, I brought a wealth of experience and expertise in designing, implementing, and optimizing big data solutions, with a particular focus on Cloudera products. Over the years, I have mastered the Cloudera ecosystem, including Cloudera Data Platform (CDP), Cloudera Data Hub, Cloudera Data Science Workbench, and Cloudera Manager. My proficiency extends to Hadoop, Spark, Hive, HBase, and other key components of the big data stack. A standout achievement in my career is being recognized as a top 10 contributor of all time on Cloudera and Hortonworks products. This accolade underscores my deep commitment to the big data community and my continuous efforts to drive innovation and best practices in the field. My role involves architecting and delivering high-performance, scalable big data solutions that meet complex business requirements. I collaborate closely with cross-functional teams to ensure seamless integration and optimal performance of data pipelines, analytics platforms, and machine learning models. With a strong background in data engineering and a proven track record of success, I am dedicated to leveraging big data technologies to transform raw data into actionable insights, thereby enabling organizations to make informed decisions and achieve their strategic objectives.

As an Azure Data Engineer, I excel in designing, implementing, and managing state-of-the-art data solutions on the Microsoft Azure platform. My expertise lies in architecting the transformation and modernization of enterprise data environments. By leveraging a comprehensive knowledge of Azure services and integrating third-party technologies, I create scalable, secure, and highly efficient data infrastructures. My extensive technical skill set and experience empower me to drive technological innovation and streamline data processes. This not only enhances data capabilities but also significantly boosts the operational efficiency of the organization. Through my work, I provide valuable insights that facilitate data-driven decision-making and foster a culture of continuous improvement and excellence in data management.

In collaboration with the cloud architect and other key stakeholders, I am responsible for designing, defining, and implementing robust public and hybrid cloud architectures tailored for One Step Beyond Group clients. This involves not only creating scalable and secure solutions but also ensuring they are optimized to meet the unique business requirements and operational goals of each client. My role extends to overseeing comprehensive cloud migration strategies, including lift and shift, rehosting, refactoring, and even rearchitecting using advanced cloud-native and serverless architectures. These complex migrations are executed in close partnership with various departments and project teams, ensuring a seamless transition with minimal disruption to ongoing operations. By leveraging a deep understanding of both the technical and business aspects of cloud computing, I help drive innovation and efficiency for our clients' cloud initiatives.

As a key member of the DataTeam practice at Sonova Holdings, I lead technological innovation for our internal clients, including Phonak, Unitron, and Advanced Bionics, by delivering robust, world-class solutions. My work focuses on building infrastructure for R&D to ingest and process data from remote hearing aids, enhancing their wearability and performance. In my role as an Azure Data Engineer, I am responsible for architecting the transformation and modernization of enterprise data solutions on the Azure cloud. This involves integrating native Azure services such as Azure Data Factory (ADF), Event Hubs, Cosmos DB, and App Services, along with third-party data technologies. My extensive experience ensures that I consider all aspects necessary for large-scale architecting, solutioning, and operationalization of data warehouses, data lakes, and analytics platforms on Azure. I possess a strong background in key Azure services, including Azure Data Factory, Azure SQL Database, Azure Synapse Analytics, and Azure Databricks, which allows me to build scalable and efficient data architectures. I collaborate closely with R&D data scientists, analysts, and other stakeholders to understand their data requirements and deliver robust solutions that support advanced analytics and business intelligence initiatives. With a broad set of technology skills across these areas, I design optimal solutions by appropriately combining Azure and third-party technologies for deployment on the Azure cloud. My goal is to drive innovation, enhance data processing capabilities, and provide valuable insights that propel our internal clients' research and development efforts.

DevOps Hadoop architect at MunichRe (Munich) HDP specialist, - Planning,provisioning, and management of HDP Clusters on premise and Azure Cloud. - Built clusters across multiple data center with blueprint automation of installation, - Cluster capacity Planning. - Building the datalake for the MIND project,ingesting earthquake,meteorological data for analysis using Nifi and flume. - Upgrade of kerberized HDP 2.4 to 2.5 - Integrating third party cataloging tools like Alatian and prototyping Waterline and Zaloni.

Managed the ERP and Oracle databases running Finance, iProcurement and Payroll and Documentum (CMS) I was the lead user support contact and technical application backup of Head of Application unit and second level support on all WMO in-house applications including Travel and Fellman applications, which are integrated with the WMO ERP. Responsibilities •Application DBA E-business suite •Technical and functional support for productions and projects environments •Lead technician for the ERP migration and upgrade •Integration of the legacy systems with E-business suite. •Integration Team leader Oracle ERP , Documentum and SSO portal •Technical documentation writer and production operating procedures •Technical support for in-house applications Mammut, Travel, Fellman

Training undergraduates and postgraduate students in relational database systems as compared to flat file data storage so that they acquire a practical knowledge in computer technologies, Linux Operating Systems and Management of Information Technologies including Analysis, design of robust relational DBMS and seamlessly transforming it to object oriented database. Workshop included •Relational and Object-Oriented analysis and modelling simulations •System analysis and DWH reporting tools. •Internet computing B2B securities. •Linux server installation and administration. •Oracle installation and deployment. •Performance analysis using Loadrunner. •E-Commerce integration with web enabled database technologies. •Portal management integrated with business intelligence tools.

Support manager of other charge of consultants on the EBS11i environment. Developed and implemented the AppServer load balancing to channel load during peak times other tasks included •Trainer and support responsible for junior DBA’s. •Design, installation and administration of Oracle EBS installation. •Technical contact with Oracle Support and documentation. •Responsible for the Production databases 24/7 High Availability. •Configured SSO authenticating through active directory using OID. •Developed the warehousing/decision support system. •Implemented the STATSPACK performance monitoring for database performance. •Developed shells for Oracle job management and batch and external data loads.

As an external Oracle DBA consultant for Ernst Young & Cap Gemini SOGETI my tasks involved. I was initially involved in Oracle worldwide support team and later in the DWH project to design and maintain the corporate Oracle databases duties included •Daily DBA tasks on the production instances. •Managed and administered e-learning application tools. •Responsible for FileNet a CMS and the Globe project QA database. •Lead Oracle worldwide support team. •Lead the DWH project design team. •Wrote the technical documentation for all the Oracle databases. •Drafted the SLA for the databases availability and support

HP-SairGroup a Swissair consortium in Zurich project involved designing, developing and supporting the Billing Support process system. This was an online booking portal comprising an alliance of 5 majors European airlines. •Built a centralised travel mall with travelling Ticket, Hotel and Car booking •Integrated the major airline booking engines Amadeus, Galileo, Oanda and Datalex •I developed and supported Data warehouse projects. •Developed a reporting portal on WebDB collect dynamic data to trace all bookings

DBA responsible for migrate data Oracle database from IBM AIX to Windows 2000 for SISCNT assurance application. •Developed administration scripts for data analysis and cleaning •Validated and tested migration path to resolve the issues before data migration. •Set up the database Audit policy. •Reverse engineered the database ERD model for performance during data transfer •Build scripts to replicated data between the databases and a central DB repository •Technical documentation details on all the instances

Managed school and hospital projects; School’s project was involved in developing a School’s intranet and putting in place the schools administrative application and database system to maintain student records. Evelyn’s Children's Hospital project was to put in place a database system to manage and replicate hospital’s data using updatable materialized views with the Department of Health HQ to detect an outbreaks of any transmissible diseases and generally monitor the health of different boroughs