Cahit Öz

Solution Architect (Freelancer)

• Conception of a Landing zone for Applications

Used technologies, Tools and Methodologies
Kubernetes, CrossPlane, Azure, Golang

Consultant, Developer (Freelancer)

• Scanning Infrastructure for Security Vulnertabilitis
• Hardening Infrastructure
• Penetration Testing

Used technologies, Tools and Methodologies
Golang, Kubernetes, REDHAT, SLES, Docker, NMAP

Consultant (Freelancer)

• Coordinating changes on AWS side with stakeholders
• Optimizing resources on Cost and Performance
• Improving the system for Disaster Recovery (DR)
• Advising developers on how to design High Available (HA) Systems
• Improving the security posture of the System

Used technologies, Tools and Methodologies
AWS Backup, Security, AWS WAF, Cloudflare, EC2, Aurora, EKS, Apprunner, Containers, Docker, High Availability, Disaster Recovery

Senior Technology Architect

• Consulted customers that wanted to migrate their SAP systems to the cloud

Used technologies, Tools and Methodologies
SAP, Data Analytics, EC2, SAP Activate, Cost Optimization, High Availability, Disaster Recovery

Solution Architect

• Hardening several Environments against vulnerabilities
• Enhancing the current development enviroment with CI/CD using GitHub Actions
• Setting up a Network Firewalls and a Transient Gateways to ensure that all communication between VPCs and the Internet is secured
• Integrating the Infrastructure running in AWS via APIGEE (REST API Gateway Google) running on GCP

Used technologies, Tools and Methodologies
Terraform, Amazon Inspector, Amazon Code Build, Amazon Code Deploy, Amazon Code Pipeline, APIGEE

Solution Architect

• Automating and Optimizing the Cloud infrastructure creation for prospective Customers
• Creation of a web site where users can request the infrastructure for benchmarks which will get automatically deployed and an email containing the password, RDP and various IP adresses is sent to the users.
• Converting the Server systems to Docker containers
• Automating recursive tasks via Lambda Functions
• Automatig Infrastrukture deployments by using Cloudformation and Terraform (Infrastructure as Code - IAC)
• Creating the VDI infrastructure to connect to the environments via Workspaces and AppStream

Used technologies, Tools and Methodologies
AWS, WAF, Workspaces, AppStream, Lambda, Boto3, Go Lang, Python, Cloudformation, EC2, Directory Service

Consultant (Freelancer)

• Rollout of Fiskalisierung in Austria for GK Cash Registers
• Requirements gathering
• 3rd. Level Support

Used technologies, Tools and Methodologies
GK Cash Registers

Programm Manager / Solution Architect(Freelancer)

• Submitting a Proposal to Migrate 53 on premise SAP Servers (Prod/Dev/Test) to the AWS cloud.
• During this migration, 23 instances that use Oracle DB should have been transformed to SAP HANA and 30 environments migrated via Lift&Shift
• The main objective of the customer is to optimize the environment for cost and agility and minimize its IT footprint.

Used technologies, Tools and Methodologies
SAP HANA, SAP ASE, Software Update Manager (SUM), database migration option (DMO), Cloudformation, System Manager, EC2, Lambda, Route53, S3, Glacier, AWS Direct Connect, Palo Alto, Kaspersky

Solution Architect/Consultant (Freelancer)

• Analyzing the Onpremise and AWS Cloud infrastructure and reporting the requirements needed to fullfill the PCI/DSS 3.2.1 requirements

Used technologies, Tools and Methodologies
AWS, Datenzentren, SAP Hybris, SAP, ADOBE Experience Manager

Projectmanager / Consultant

• Ensuring that communication within the internal and external network is PCI/DSS compliant. That communication is established over TLS 1,2 only and using strong ciphers.
• Establishing systems to track customer readiness and F5 configuration monitoring.
• Coordination of remote and onsite teams that handle the Application, Server and Cloud infrastructure.
• Design of Software Solutions that are used to track vulnerabilities.

Used technologies, Tools and Methodologies
AWS Cloud, Amazon ECS, Kubernetes, System Architecture, JIRA, Confluence, SLA, Network scanners, Nmap, Citrix, Thin / Fat-Client, TLS-Scanner, Security, Vulnerability-Scanner, Elastic Search, Kibana

Project Manager / Solution Architect

• The optimized routes were then transferred to the phone of the driver (The Ionic framework was used to establish a solution for iPhone, Android and Windows based Phones)
• Development of a Software Solution that optimizes destinations that are entered through an API either based on Time or Distance
• For scalability the Google FIREBASE database was used.

Used technologies, Tools and Methodologies
Google Maps, Google Cloud Platform, Microservices, Google Functions, Docker, Google Firebase, IONIC Framework, PHP, Node.JS, Angular JS, Maria DB, FIREBASE, HTML, CSS, Java Script

Project Manager

• Responsible for the design of the Application and Technology Architecture and managing their implementation for the Retail sector.
• Leading workshops to analyze the IS State and gather customer requirements.
• Monitoring and Reporting the project status, ensuring that the project is within the defined budget, quality and proceeding according to plan.
• Responsible for the delivery of Licenses, Software and integrating our systems to services provided by 3rd parties.

Used technologies, Tools and Methodologies
System Architecture, JIRA, Confluence, SAP, SAP-HANA, Oracle, MS-SQL, Java, IIS, Tomcat, NetWeaver, POS, Label and Poster Printing, Scale, Self-Checkout

Military Service

Solution Architect / Projekt Manager / Team Leader / Software Developer

• Gathering requirements and designing the System and Software Architecture.
• Problem management, Incident Management and ensuring that they are solved within the time frame specified by the SLA.
• Working in multicultural environment acting as single point of contact between Product Owners across Europe and the Development and Test Teams in Turkey.
• Designing, preparing and updating the required documents, tools and reports informing stakeholders about the Project status.
• Ensuring that the customer system environment (CMDB) is kept up to date.
• As a Product Owner was responsible for developing a new Software Solution. (modernisation of an existing system)

Used technologies, Tools and Methodologies
Product Owner, BPMN, SDLC, SLA, KPI, VoIP, SIP, HFA, TDM, Unified Communications, C, C++, ECL, Java, PHP, Perl, Soft Clients

Global Vendor Support / Service Manager

• Responsible for two Software Applications to enhance customer satisfaction.
• Problem and Incident Management, Root cause analysis, release Management.
• Ensuring that problems were solved, within the times defined by the SLA.
• Regular reporting regarding for Management about Incidents and Problems.
• Requirements gathering.

Used technologies, Tools and Methodologies
ITIL, SLA, User Management, Fault Management, Quality of Service Management, (BSS/OSS) , Java,

Project Management / Software Development Specialist

• Was responsible for the ERP upgrade of a newly Acquired German company and its integration with the SAP system.
• Responsible of elevating the level of services provided by the IT department using COBIT and ITIL
• Implementing solutions to automate processes in Automotive Manufacturing.

Used technologies, Tools and Methodologies
COBIT, ITIL, IT Service Management, Project Management

Software Development Engineer

• Responsible for enhancing their Software Solution based on customer Requirements.

Used technologies, Tools and Methodologies
Visual Basic 6, ASP, .NET, Jasper Reports, UML

Automation Programmer

• Porting a Software Monitoring Server System, running under HP-UX, to a Server-Client System that would, on the client side run on Windows Desktop Computers.
• The system was used to evaluate the Quality of the spraying process of Automobiles.

Used technologies, Tools and Methodologies
PASCAL, DELPHI, C, C++, UML

Tutor

Giving lectures for Adults on the following subjects.

• Visual Basic for Beginners
• Visual Basic for experienced programmers
• Programming for the Web

University of Edinburgh