Starting in 2012, our ecommerce business at BestPharmacy.gr has grown 10x (in 9 years) and it has risen to one of the top online pharmacies in Greece. As a partner, co-director and CTO my main responsibility and goal is to take the company to the next level, by tackling all the operational, financial, business development and technical challenges. I'm thrilled to work with an amazing and diverse team of people, which is growing in numbers and evolving in skills.I'm involved in so many aspects of the company that cannot fit in a few sentences, ranging from business strategy, finance, accounting, HR and legal agreements to technical operations like, software development, deployment, security and maintenance of our servers and websites and integrations with external services. Thankfully, I'm learning new things every day, tackling new challenges and growing happily on the way!

As VP of Product Architecture at Sunlight.io I was responsible for leading the upcoming architecture and design of the software (Sunlight Enterprise Software Platform), as well as documenting the overall architecture and implementation of new features through prototyping work. Additionally, working closely with the product engineering team, I've also provided architectural guidance for product development, ensuring that research activity is aligned with the vision for the product and provides value to the company business.Part of my role included also leading research-related activities and managing research projects, including EU-funded R&D activities (e.g. #Horizon2020 projects). Also I have coordinated participation in new Research project proposals and authored several publications and technical documents (deliverables, research papers, technical documentation and patents).

As a Director, I was responsible for incorporating and managing the Sunlight.io subsidiary in Greece. I completed all the legal, financial, tax and labor/HR tasks for the incorporation, working with Greek lawyers, banks, accountants and the local tax offices. After the incorporation, I have been the “legal representative” of the Greek company, responsible for signing all the contracts and company documents, managing the company bank account, authorizing financial transactions (e.g. payroll, expenses), as well as being responsible for tax, labor, safety and regulatory compliance.

As the Head Of Research at Sunlight.io I have led research-related activities and managed several research projects, including EU-funded R&D activities (e.g. #Horizon2020 projects). Also I have coordinated participation in new Research project proposals and authored several publications and technical documents (deliverables, research papers, technical documentation and patents).Additionally, working closely with the product engineering team, I've also provided architectural guidance for product development, ensuring that research activity is aligned with the vision for the product and provides value to the company business.Also, since the majority of the engineering team of Sunlight.io was based in Greece, during this period I continued to recruit from my local network, helping the Greek team of engineers to grow further to over 15 people.

Engineering the OnApp Storage product, a high-performance & fault-tolerant storage solution, based on distributed commodity storage devices. Involved not only on system-level design and features, but also on developing, debugging & testing software components at various levels: Linux kernel drivers (block device, dev mapper, nbd, virtualization), storage servers, control path code, testing framework, FS-level code for NFSv4 server, etc.In parallel, conducting research in emerging, power-efficient micro-server architectures (as part of the Euroserver FP7-funded R&D project) on the topics of (i)scalable network and storage I/O, and (ii)energy-driven resource management in cloud architectures.

Development and setup of eCommerce Platform, design of www.bestpharmacy.gr web site UI, content and marketing images, processed product data and pricing, web site traffic growth, social media networking, online marketing and advertising. Consultant on brand strategy, marketing and growth.

Started to bootstrap the company, researched the business model, searched for partners, employees and investors, wrote business plans & funding proposals and worked on the design of innovative ideas & solutions.

Managed research projects, performed original systems research within our group, developed and measured high-performance distributed system prototypes, hacked the Linux kernel (implemented virtual block device drivers, a distributed storage virtualization framework, and a user-level filesystem), authored research papers on original, state-of-the-art research, mentored students, talked in many conferences, attended numerous project meetings, talked to companies and investors about commercializing research, reviewed research papers, wrote & edited research proposals and research project documents (deliverables, etc.).

Successfully completed several graduate-level courses, read a ton of computer science literature (papers, books, etc.), completed many course assignments and projects, performed original research, authored research papers on original, state-of-the-art research, mentored students, developed and measured high-performance distributed system prototypes, hacked the Linux kernel, attended conferences, reviewed research papers, completed all PhD milestone exams, authored and successfully defended my PhD thesis.

Hacked the Linux kernel, read and authored research papers on original, state-of-the-art systems research, mentored students, developed and measured high-performance distributed systems, reviewed research papers.

As a teaching assistant at the University of Toronto I tutored students (tutorial lectures) and marked student assignments in the following courses (each lasting one semester): "Operating Systems", "Programming on the Web", "Information Systems Analysis & Design", and "Computer-Based Simulation Models”. In some semesters during this period I was a TA in more than one courses.

Developed and measured high-performance distributed systems, read and authored research papers on original, state-of-the-art systems research, reviewed research papers.

Administrated Solaris and Linux systems, installed hardware and operating systems in new computers, installed open-source software in Solaris & Linux systems, configured services, compiled the Linux kernel (version 2) for our hardware, wrote shell scripts, and coded programs in C.