Sergio De Tejada Ayuso
Co-Fundador & CTO at eSave
Madrid, Community of Madrid, Spain
Summary
👤
Senior🎓
Top SchoolSergio De Tejada Ayuso is a pragmatic technology leader and co-founder/CTO based in Madrid with nine years of professional experience building telecom and cloud-focused software solutions. He moved from research and R&D roles at Telefónica I+D into hands-on telecom expense management implementations at IBM, A&B Groep and Calero, gaining deep expertise in PCE/PCEP, Oracle/SQL, integrations and customer-facing delivery. Since 2018 he has led eSave, combining product strategy with technical execution to solve complex lifecycle and billing problems for communications services. Trained as a telecommunications engineer with additional full-stack web development bootcamp experience, he bridges rigorous academic algorithms work and practical SaaS delivery. Colleagues describe him as an optimistic problem-solver who seeks new challenges and learns on the job—comfortable moving between low-level network control-plane concepts and higher-level product implementation.
9 years of coding experience
6 years of employment as a software developer
Bachelor of Science (BSc) + MsC, Telecommunications Engineering, Bachelor of Science (BSc) + MsC, Telecommunications Engineering at Universidad Autónoma de MadridIngeniería Electrónica (1 año Erasmus), Ingeniería eléctrica, electrónica y de comunicaciones, Erasmus, Ingeniería Electrónica (1 año Erasmus), Ingeniería eléctrica, electrónica y de comunicaciones, Erasmus at Università di Roma Tor VergataWeb Development Bootcamp, Ruby on Rails, Web Development Bootcamp, Ruby on Rails at Ironhack
English, Italian, French
Github Skills (17)
test-coverage10
rest-api8
django8
django-rest-framework8
exchange7
react6
docker-desktop4
desktop2
docker2
macos2
pdf1
normalization1
ruby1
ruby-wrapper1
parsing1
Programming languages (2)
Github contributions (5)
sergimartnez/semillas_backend
Nov 2016 - May 2017
Contributions:6 PRs, 54 pushes, 8 branches in 5 months
goodsreactexchangetransparentlegal
sergimartnez/space_sharing
Mar 2017 - May 2017
Contributions:5 pushes, 1 branch in 2 months
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