LEONIDAS MAMAIS Software Engineering Lead
Software Engineering Lead
Working Experience
Engineering Manager - Digital
Vodafone // 2022 - Today
Leading a high performance team of 70+ engineers, including multiple engineering leaders across diverse digital domains, including Frontend, API/Microservices, and Mobile. Driving the architecture and technical strategy for major initiatives, ensuring scalable, high-performance solutions that support the company's digital transformation goals. Leading large-scale digital initiatives, overseeing the design, development, and deployment of innovative digital solutions. Responsible to foster a culture of continuous improvement, collaboration, and technical excellence.
Engineering Manager - Core IT
Vodafone // 2024 - 2025
Leading a team of 30 engineers, including multiple engineering leaders across diverse Core IT domains, including CRM, ERP, and Billing systems. Responsible for overseeing Core IT transformation initiatives, driving technical innovation. Aligning technology strategies with business goals, optimizing processes, and fostering a culture of collaboration and high performance within engineering teams.
Frontend Chapter Lead
Vodafone // 2019 - 2022
Senior Frontend Engineer
Vodafone // 2016 - 2019
Senior Full Stack Engineer
47 Purity Street // 2016 - 2019
Web Developer
Publicis // 2010 - 2012
Junior Web Developer
FCNET // 2007 - 2008
Selected Public Speaking
Founded and currently lead content strategy for Vodafone
tech blog
tech.gr.vodafone.com
// 2025
Large scale projects challenges (NextJS -
Contentful)
React Summit // 2022
Next day with NextJS and Broadleaf
Developers Day // 2021
Workshop - Testing your frontend code and beyond
Developers Day // 2019
Workshop/Supervision - Code like
Vodafone // 2018-2021
Studies
Master of Science (MSc) in Web Technology
University of Southampton // 2008 - 2009
Bachelors in Computer Information Systems
American College of Greece (DEREE) // 2002 - 2006
Awards
Worked with
