Available to hire
Hi, I’m Sokratis Karagiannis, a Full-stack Developer and Blockchain Engineer with over 9 years of experience building robust Web3 systems and deploying smart contracts. I have a strong passion for developing decentralized applications that are secure, scalable, and solve real-world problems. I enjoy collaborating with teams to break down complex technical challenges into clear documentation and actionable plans to foster rapid product growth.
Throughout my career, I’ve worked across a variety of projects, from blockchain integration in medical applications to wildfire prevention technology, always striving to deliver efficient and reliable solutions. I’m proactive and customer-focused, ensuring I communicate technical concepts in friendly, understandable ways to stakeholders and end-users alike.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Language
Javanese
Advanced
Work Experience
Product Engineer at Phasma
January 1, 2024 - PresentBuilt APIs and backend services with Python for secure data processing. Designed secure, scalable blockchain architectures with smart contracts and databases for medical applications, using AWS Lambda for efficient data processing. Deployed Solidity smart contracts with AWS S3 for secure storage. Researched blockchain integration beyond medical data, boosting adaptability with AWS scalability, supporting end-users by troubleshooting technical issues related to blockchain applications. Communicated complex concepts in user-friendly terms to non-technical stakeholders.
Project Manager at Promitheas Wildfire Prevention Drone
January 1, 2024 - July 16, 2025Engineered a hardware platform with cameras and thermal sensors on AWS EC2, enabling real-time wildfire detection data processing. Developed Python-based flight control software with machine learning, integrated with AWS S3 and Lambda for scalable analytics. Conducted field testing with emergency frameworks to ensure reliable performance using AWS infrastructure. Led technical development from concept to production, delivering robust solutions for 10+ stakeholders.
Software Developer/Network Engineer at Enecon
January 1, 2024 - July 16, 2025Developed server-side logic, databases, and APIs. Designed, implemented, and optimized databases for efficient data management. Performed frontend and backend development tasks. Led and participated in security audits and compliance assessments. Managed cybersecurity initiatives to safeguard critical systems and data.
Software Developer/Data Management Specialist at Triton
December 31, 2021 - July 16, 2025Pioneered an automatic blockchain image storage system using Unreal Engine 5 and neural networks to enhance data handling efficiency. Deployed and maintained smart contracts, ensuring smooth operation with Python tools to improve reliability. Enhanced decision-making with SQL-based data visualization. Collaborated on data security protocols ensuring regulatory compliance.
Lead Developer & Network Engineer at FallingStar
December 31, 2021 - July 16, 2025Wrote, audited, and deployed scalable smart contracts with API integration ensuring high throughput and minimal costs. Implemented network protocols and managed firewall configuration (Cisco ASA) to enhance security. Integrated Active Directory and LDAP to improve access control.
Developer/Data Analyst at Storm
December 31, 2020 - July 16, 2025Led smart contract development ensuring smooth operation and reliability. Conducted data analysis to identify actionable trends for senior management. Collaborated with cross-functional teams to design customized reporting tools for KPI tracking and data quality monitoring.
IT Specialist/Network Engineer at Kleemann Karamanolis
December 31, 2018 - July 16, 2025Provided IT support, troubleshooting, and maintenance for systems and hardware improving operational efficiency. Collaborated on IT and lift system projects ensuring technical standards compliance.
Cybersecurity Analyst/Network Engineer at Greek Element
December 31, 2013 - July 16, 2025Led website deployment project incorporating CSS3, sparking early blockchain interest and enhancing security/functionality. Led cross-functional development team managing full project lifecycle. Protected websites from vulnerabilities such as SQL injection and XSS attacks ensuring robust security.
Product Engineer at Phasma
January 1, 2024 - PresentBuilt APIs and backend services with Python for secure data processing. Designed secure, scalable blockchain architectures with smart contracts and databases for medical applications, using AWS Lambda for efficient data processing. Deployed Solidity smart contracts with AWS S3 for secure storage. Researched blockchain integration beyond medical data, boosting adaptability with AWS scalability, which supported end-users by troubleshooting technical issues related to blockchain applications. Communicated complex concepts in user-friendly terms, helping non-technical stakeholders understand system updates effectively.
Project Manager at Promitheas Wildfire Prevention Drone
January 1, 2024 - July 16, 2025Engineered a hardware platform with cameras and thermal sensors on AWS EC2, enabling real-time wildfire detection data processing. Developed Python-based flight control software with machine learning, integrated with AWS S3 and Lambda for scalable analytics. Conducted field testing with emergency frameworks, ensuring reliable performance using AWS infrastructure. Led technical development from concept to production, delivering robust solutions for 10+ stakeholders.
Software Developer/Network Engineer at Enecon
January 1, 2024 - July 16, 2025Developed server-side logic, databases, and APIs to support applications. Designed, implemented, and optimized databases for efficient data management. Worked on both frontend and backend development tasks. Led and participated in security audits and compliance assessments. Managed cybersecurity initiatives, ensuring the security of critical systems and data.
Software Developer/Data Management Specialist at Triton
December 31, 2021 - July 16, 2025Pioneered an automatic blockchain image storage system using Unreal Engine 5 and neural networks, which improved data handling efficiency. Deployed and maintained smart contracts, ensuring smooth operation with Python tools, enhancing reliability. Enhanced decision-making with SQL-based data visualization, which improved data-driven insights. Collaborated with cross-functional teams to design and implement data security protocols, ensuring compliance with industry regulations.
Lead Developer & Network Engineer at FallingStar
December 31, 2021 - July 16, 2025Wrote, audited, and deployed scalable smart contracts with API integration, ensuring high throughput and minimal costs. Implemented network protocols, firewall configuration, and management (Cisco ASA), enhancing network security. Integrated Active Directory and LDAP, improving access control.
Developer/Data Analyst at Storm
December 31, 2020 - July 16, 2025Led the development of smart contracts, ensuring smooth operation and reliability. Conducted thorough data analysis and interpretation to identify trends and patterns, resulting in actionable insights for senior management. Collaborated with cross-functional teams to design and build customized reporting tools for tracking key performance indicators and monitoring data quality.
IT Specialist/Network Engineer at Kleemann Karamanolis
December 31, 2018 - July 16, 2025Provided IT support, troubleshooting, and maintenance for systems and hardware, which enhanced operational efficiency. Collaborated with a team to deliver efficient and reliable solutions in both IT and lift system projects, ensuring technical standards compliance.
Cybersecurity Analyst/Network Engineer at Greek Element
December 31, 2013 - July 16, 2025Led a team to deploy a secure website with CSS3, sparking early blockchain interest, which enhanced security and functionality. Led a cross-functional development team, overseeing the entire project lifecycle, from concept to deployment. Protected websites from common vulnerabilities, such as SQL injection and cross-site scripting (XSS) attacks, ensuring robust security measures.
Product Engineer at Phasma
January 1, 2024 - PresentBuilt APIs and backend services with Python for secure data processing. Designed secure and scalable blockchain architectures for medical applications, leveraging AWS Lambda for efficient data workflows. Deployed Solidity smart contracts with AWS S3 for secure storage. Researched blockchain integration beyond medical data to enhance adaptability and scalability. Supported end-users by troubleshooting blockchain-related technical issues. Communicated complex concepts in user-friendly terms to non-technical stakeholders to ensure clear understanding of system updates.
Project Manager at Promitheas Wildfire Prevention Drone
January 1, 2024 - July 16, 2025Engineered hardware platforms with cameras and thermal sensors running on AWS EC2 for real-time wildfire detection. Developed Python-based flight control software integrated with AWS S3 and Lambda for scalable analytics and machine learning. Conducted field testing aligned with emergency frameworks to guarantee reliable system performance. Led the full technical cycle from concept to production, delivering robust solutions to over 10 stakeholders.
Software Developer/Network Engineer at Enecon
January 1, 2024 - July 16, 2025Developed server-side logic, databases, and APIs to support applications. Designed, implemented, and optimized databases for efficient data management. Worked on both frontend and backend development tasks. Led and participated in security audits and compliance assessments. Managed cybersecurity initiatives to ensure the protection of critical systems and data.
Software Developer/Data Management Specialist at Triton
December 31, 2021 - July 16, 2025Pioneered an automatic blockchain image storage system using Unreal Engine 5 and neural networks to improve data handling efficiency. Deployed and maintained smart contracts with Python tools to enhance system reliability. Enhanced data-driven decision-making through SQL-based visualization. Collaborated cross-functionally to design and implement robust data security protocols compliant with industry standards.
Lead Developer & Network Engineer at FallingStar
December 31, 2021 - July 16, 2025Wrote, audited, and deployed scalable smart contracts integrated with APIs to ensure high throughput and reduced costs. Implemented network protocols and firewall management using Cisco ASA to enhance security. Integrated Active Directory and LDAP to improve access control and identity management.
Developer/Data Analyst at Storm
December 31, 2020 - July 16, 2025Led development of smart contracts ensuring operational stability and reliability. Conducted thorough data analysis leading to actionable insights for senior management. Collaborated to design and build custom reporting tools for performance monitoring and data quality.
IT Specialist/Network Engineer at Kleemann Karamanolis
December 31, 2018 - July 16, 2025Provided IT support, troubleshooting, and maintenance to improve operational efficiency. Collaborated on IT and lift system projects to deliver efficient, reliable solutions aligned with technical standards.
Cybersecurity Analyst/Network Engineer at Greek Element
December 31, 2013 - July 16, 2025Led team to deploy secure websites utilizing CSS3, sparking early interest in blockchain technology and enhancing security and functionality. Managed cross-functional development teams overseeing projects from concept to deployment. Implemented measures to protect websites from vulnerabilities such as SQL injection and XSS attacks.
Education
Bachelor at University of Athens
January 1, 2024 - January 31, 2024Bachelor at University of Athens
January 1, 2024 - January 1, 2024Bachelor at University of Athens
January 1, 2024 - January 1, 2024Qualifications
Cybersecurity Certification
December 1, 2022 - December 31, 20223D Printing Hardware Specialization Certification
August 1, 2021 - August 31, 2021Python Certification
August 1, 2020 - August 31, 2020Informatics Engineering Certification
August 1, 2005 - August 31, 2005Cybersecurity | Certification
December 1, 2022 - December 31, 20223D Printing Hardware Specialization | Certification
August 1, 2021 - August 31, 2021Python | Certification
August 1, 2020 - August 31, 2020Informatics Engineering | Certification
August 1, 2005 - August 31, 2005Cybersecurity Certification
December 1, 2022 - December 31, 20223D Printing Hardware Specialization Certification
August 1, 2021 - August 31, 2021Python Certification
August 1, 2020 - August 31, 2020Informatics Engineering Certification
August 1, 2005 - August 31, 2005Industry Experience
Software & Internet, Healthcare, Energy & Utilities, Gaming, Professional Services
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
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