Stefanos Grammenos

CEO

Greece13 yrs 5 mos experience
Most Likely To SwitchHighly Stable

Key Highlights

  • Expert in web security and infrastructure management.
  • Proven track record in DevOps and cloud security.
  • Strong background in cybersecurity compliance and risk management.
Stackforce AI infers this person is a Cybersecurity and DevOps expert in the SaaS industry.

Contact

Skills

Core Skills

Web SecurityTechnical SupportDevopsNetwork SecurityCybersecurityData IntegrityProject ManagementCloud SecurityBusiness ResearchInformation SecurityCompliance

Other Skills

Security solutionsWebsite creationManagementOptimizationVulnerability assessmentsData protectionUser experienceDocker ProductsAnsibleOpen-Source SoftwareInformation Security ManagementSecure infrastructuresData verificationNetwork analysisDigital integrity assessments

About

System Engineering + Web Security

Experience

13 yrs 5 mos
Total Experience
6 yrs 7 mos
Average Tenure
11 yrs 5 mos
Current Experience

Freelance

Freelance

Jan 2023Present · 3 yrs 5 mos

  • Provide technical support and security solutions for multiple clients, including website creation, management, and optimization. Develop and maintain secure web infrastructures, ensuring data protection and reliability. Conduct vulnerability assessments and implement best practices for web application security. Offer tailored advice and technical troubleshooting to improve system performance and user experience. Continue enhancing OSINT and data verification skills through the integration of open-source research and geolocation tools.
Technical supportSecurity solutionsWebsite creationManagementOptimizationVulnerability assessments+4

Cloudflare, inc.

2 roles

Engineer

Apr 2020Present · 6 yrs 2 mos

Docker ProductsDevOpsNetwork SecurityAnsibleOpen-Source SoftwareCloud Security+1

Computer Engineer

Jan 2019Present · 7 yrs 5 mos

  • Designed and implemented secure, large-scale infrastructures supporting global operations. Conducted data verification, network analysis, and digital integrity assessments across distributed systems. Applied cybersecurity and privacy standards ensuring compliance and ethical use of data. Supported analytics and reporting solutions to enhance operational and strategic decision-making. Collaborated with multicultural teams, adapting deployment methods to remote and low-resource environments.
Secure infrastructuresData verificationNetwork analysisDigital integrity assessmentsCybersecurity standardsPrivacy standards+4

Wp-machina.com

Project Development Manager

Sep 2019Present · 6 yrs 9 mos · Spain

  • Chief Technology Officer
  • Project Development Manager
  • DevOps
  • Development
Docker ProductsDevOpsOpen-Source SoftwareCloud SecurityProject Management

Stonesvilla.com

Developer

Dec 2018Present · 7 yrs 6 mos · Greece · Remote

  • CEO, Chief Technology Officer , DevOps, Development
Amazon EC2Docker ProductsOpen-Source SoftwareBusiness ResearchCorporate FinanceFinancial Companies+3

Wordcamp thessaloniki

Co Organizer

Jan 2018Present · 8 yrs 5 mos · Greece

  • Co-Organizer at https://2018.thessaloniki.wordcamp.org #WordPress #WordCamp Thessaloniki 2018, #greece.

Radiatewp.com

Engineer

Mar 2017Present · 9 yrs 3 mos · United States

  • DevOps Technical Lead and Developer at RadiateWP.com #WordPress #developer, WP Maintenance Services, #Development and #hosting
Amazon EC2Docker ProductsDevOpsNetwork SecurityAnsibleOpen-Source Software+1

Wordcamp athens

Co Organizer

Feb 2017Present · 9 yrs 4 mos · Athens

  • Co-Organizer at WordCamp Athens 2017

Pressidium

3 roles

System Administrator

Promoted

Apr 2016Oct 2019 · 3 yrs 6 mos

  • Being a DevOps Engineer for the world's best Managed WordPress Hosting Service.
  • Deep Knowledge of all things related to WordPress and Security
  • Quick problem solving
  • Through close collaboration supporting the needs of the team in implementing and developing all existing and new types of web services.
  • #Pressidium fully managed WordPress #hosting services allow #businesses to concentrate on their content without worrying about their website.
Amazon EC2Docker ProductsDevOpsNetwork SecurityAnsibleOpen-Source Software+1

Technical Support Engineer

Mar 2016Oct 2018 · 2 yrs 7 mos

Server Administrator

Jan 2015Jan 2019 · 4 yrs

  • Managed enterprise-level hosting infrastructures and ensured system uptime and data protection. Implemented automated monitoring and incident response systems. Produced operational analysis reports to improve infrastructure performance. Strengthened data recovery and continuity frameworks applicable to humanitarian logistics systems.
Amazon EC2Docker ProductsDevOpsNetwork SecurityAnsibleOpen-Source Software+1

Wordcamp athens

Co Organizer

Mar 2016Present · 10 yrs 3 mos · Greece

  • https://2016.athens.wordcamp.org/

G.s. of information systems & a.s

Research And Development Specialist

Jan 2015Present · 11 yrs 5 mos · Athens

  • Independent Security Department
  • http://www.minfin.gr/
  • Determining security system verification and verifying implementation, recording and evaluating findings.
  • The guidance of the services of the Ministry of Finance for proper implementation of security policies.
  • Monitoring and verification of all departments and activities of the Ministry of Finance in order to ascertain the compatibility of the system operations with the security policy.
  • The definition of the security rules, the information systems of the Ministry, as well as the ones that it hosts, and the care for their faithful observation by all the departments of the Ministry that use them.
  • The inspection of all Information and Communication Services and the verification of the physical security of the building and the systems.
  • The concern for the security of the network and information infrastructure of the Ministry of Finance, as well as for the security of Internet applications.
  • Define and control compliance with the rules and procedures for protecting, storing and backing up all data managed or hosted by the Directorate-General for Infrastructure and Information-Communications Services.
  • The concern to identify and evaluate security risks in existing and new systems and infrastructures.
  • The monitoring of the inadequate operation of the Information Systems of the Ministry of Finance and of the hosts, control, and investigation of the security breach cases.
  • The concern to ensure confidentiality of the communication with the traders in accordance with the requirements of confidentiality and confidentiality imposed by the Data Protection Authority.
  • The concern to promote awareness and improve the information of users and the administration on security issues.
Security system verificationImplementation guidanceMonitoringVerification of complianceRisk identificationUser awareness+2

Infomust.gr

Chief Engineer

Mar 2014Jan 2018 · 3 yrs 10 mos · Greece

  • Dev-Operations, Server Management
Amazon EC2Docker ProductsAnsibleDevOps

Mediahost

Server Administrator

Jan 2013Jan 2015 · 2 yrs

  • Installed, configured, and maintained LAN/WAN and web infrastructures. Diagnosed and resolved complex performance and connectivity issues. Introduced automated backup and disaster recovery protocols for data reliability.
Amazon EC2Docker ProductsDevOpsOpen-Source SoftwareCloud Security

Education

Cybernetics International College of Technology

Bachelor of Applied Science (B.A.Sc.) — Computer Software Engineering

Jan 2006Jan 2008

Alexander Technological Educational Institute of Thessaloniki

Master of Library & Information Science - MLIS — Computer Science

Jan 2006Jan 2010

Aristotle University of Thessaloniki

Bachelor of Science

Jan 2012Jan 2016

Ministry of Finance

Training in Computer Networking and Telecommunications

Jan 2018Jan 2023

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