Stefan Johne
Head of Blockchain Research & Development at SENECA | The First Blockchain for Data-Rich Applications- Claim this Profile
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English Native or bilingual proficiency
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German Native or bilingual proficiency
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Bio
Experience
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Head of Blockchain Research & Development
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Jun 2022 - Present
➤ Academic research and architectural design of a permissionless layer 1 blockchain. ➤ Engineering management across multiple products and engineering teams. ➤ Critical roles in business development, investor relations, and as CISO and decision maker for the company’s IT systems and cybersecurity. ➤ Academic research and architectural design of a permissionless layer 1 blockchain. ➤ Engineering management across multiple products and engineering teams. ➤ Critical roles in business development, investor relations, and as CISO and decision maker for the company’s IT systems and cybersecurity.
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Special character studio
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Technology, Information and Internet
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Lead Blockchain Engineer
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Mar 2021 - Jun 2022
➤ Implemented multi-currency NFT payment widgets including an Ethereum/Polygon gas station for gas-free NFT purchases. ➤ Worked with industry partners from music and film on live-event NFT sales and projects. ➤ Oversaw technical implementation of multiple DAOs and community projects. ➤ Implemented multi-currency NFT payment widgets including an Ethereum/Polygon gas station for gas-free NFT purchases. ➤ Worked with industry partners from music and film on live-event NFT sales and projects. ➤ Oversaw technical implementation of multiple DAOs and community projects.
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SecureCash | Banking Courier Services
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Security and Investigations
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1 - 100 Employee
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Lead Software Systems Engineer
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Mar 2018 - Feb 2021
➤ Architecture and implementation of cash flow management software that processes more than USD 836,000,000 in physical cash assets and serves over 10,000 industry partners. ➤ Principal engineer for B2B mobile web app, customer service portal, internal operations software, backend servers, cloud infrastructure & APIs, and multiple websites. ➤ Handling corporate customer accounts for software product licensing. ➤ Management of the company's IT systems (phone, Google Workspace, email, and security). Show less
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Software Engineer
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2012 - 2014
➤ Management and automation systems for online marketing clients, SEO, SEM, and SMM. ➤ Development of internal multi-domain CMS to assist clients with SEO. ➤ Management and automation systems for online marketing clients, SEO, SEM, and SMM. ➤ Development of internal multi-domain CMS to assist clients with SEO.
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GladiatorZ
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United Kingdom
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Food and Beverage Services
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Video Game Developer, Community Manager
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2006 - 2011
Creative design, technical architecture, development, infrastructure and community management of one of Germany's first graphical, interactive role-playing browser games. ➤ Full-stack web development and server administration. ➤ Community management, at peak 1,000,000 pageviews/mo and thousands of DAUs. ➤ Sponsored by rescale as one of the most promising browser games in 2007. Creative design, technical architecture, development, infrastructure and community management of one of Germany's first graphical, interactive role-playing browser games. ➤ Full-stack web development and server administration. ➤ Community management, at peak 1,000,000 pageviews/mo and thousands of DAUs. ➤ Sponsored by rescale as one of the most promising browser games in 2007.
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Internship Trainee
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2006 - 2006
Layouting, typography, and print design for a German travel agency. Layouting, typography, and print design for a German travel agency.
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Education
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Leipzig University
Biochemistry and Molecular Biology