Evangelos Dellios
Larissa
Summary
Frontend Engineer with 5+ years of experience building scalable mobile and web applications. Specialized in React Native and JavaScript, with a proven track record of improving app performance and user engagement. Skilled in TypeScript, Redux, and backend-driven UI frameworks, with a strong focus on agile collaboration, mentoring, and cross-functional teamwork. Experienced in delivering customer-focused solutions in both startup and corporate environments.
Overview
6
6
years of professional experience
Work History
Frontend Mobile Engineer
OKTO
10.2022 - Current
- Developed and maintained multiple mobile applications enabling secure fintech transactions with over €5 billion in total volume.
- Improved app startup time by 30% and reduced crash rates by enhancing performance and implementing comprehensive testing.
- Worked closely with QA, product, and backend teams to ensure high-quality, scalable features across platforms (iOS/Android).
Tech Stack: React Native, ReactJS, TypeScript, iOS, Android
Full-Stack Software Developer
Readnet Publications
08.2020 - 11.2021
- Designed and optimized educational applications serving diverse user groups.
- Developed robust backend systems using PHP and MySQL hosted on Google Cloud.
- Collaborated with a small agile team to iterate quickly on features.
Tech Stack: PHP, MySQL, Google Cloud
Software Developer (Internship)
Pasteque Electronics
10.2019 - 07.2020
- Created RESTful APIs to support ERP system integration and internal data workflows.
- Contributed to full-stack development tasks including frontend interfaces and backend services.
Tech Stack: React, Node.js, SQL
Education
Bachelor’s Degree - Computer Science
University of Thessaly
01.2020
Skills
- Languages: JavaScript, TypeScript
- Frameworks & Libraries: React Native, ReactJS, Nodejs, Styled Components
- Databases: MySQL, MongoDB, SQL
- Testing: Jest, React-testing-library
- Dev skills: Git, CI/CD, AWS, Redux-Saga
- Methodologies: Agile, Scrum
Languages
Greek (Native)
Bilingual or Proficient (C2)
English
Upper intermediate (B2)
Timeline
Frontend Mobile Engineer
OKTO
10.2022 - Current
Full-Stack Software Developer
Readnet Publications
08.2020 - 11.2021
Software Developer (Internship)
Pasteque Electronics
10.2019 - 07.2020
Bachelor’s Degree - Computer Science
University of Thessaly
Similar Profiles
HAGOP KAPLOHAGOP KAPLO
Area Multi Brand Manager at OKTO , TAWLAT FAYZA, PPLArea Multi Brand Manager at OKTO , TAWLAT FAYZA, PPL
Theofanis TsitroulisTheofanis Tsitroulis
Physical Education Coach at BakogiannisPhysical Education Coach at Bakogiannis
IOULIA TSIRONIIOULIA TSIRONI
Legal Associate and Attorney at Law at Self-employeedLegal Associate and Attorney at Law at Self-employeed