Leon S.

Leon S.

React.js Developer

Katerini, Greece
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About Me

Leonidas is a React.js Developer with 4+ years of software development skills with JavaScript and React.js on projects. He designs, develops and implements UI components on solutions, improves frontend performance and documents codebase on projects. He works across the SDLC - gathering and analyzing requirements, responding to outages and creating system models for solutions.

Work history

UpStack
UpStack
React.js Developer
2021 - Present (4 years)
Remote
  • Creating and developing innovative software solutions for clients across a broad range of industries.

  • Participate in scrums consisting of cross-functional teams, both software and hardware.

  • Ensure that features are being delivered efficiently and on-time.

Futurerise Technologies
Futurerise Technologies
Software Developer
2020 - Present (5 years)
Katerini, Greece
  • Build and maintain solutions on educational platforms handling all phases of the product cycle.

  • Develop, test, and maintain web-based applications using modern technologies for clients.

  • Refine and tune integrations between solutions, support deployment of releases and resolve technical and web app problems.

F1-Net
F1-Net
Software Engineer
2018 - 2020 (2 years)
Katerini, Greece
  • Developed and implemented custom web applications on projects.

  • Wrote clean, scalable and quality code and provided input on custom software development projects.

  • Detected, troubleshot and resolved complex software issues on solutions.

e-Analysis G.P
e-Analysis G.P
Software Engineer
2017 - 2018 (1 year)
Katerini, Greece
  • Designed, built, and maintained efficient, reusable, and reliable code on different desktop and web solutions.

  • Optimized code for efficiency and maintained software code for high-performing desktop and web apps.

  • Resolved complex problems and roadblocks on solutions - following through on details and driving issues to closure.

Freelance
Freelance
Software Developer
2011 - 2017 (6 years)
Katerini, Greece
  • Developed digital assets, website layouts and UIs using standard web development best practices.

  • Gathered and refined specifications and requirements on solutions based on the technical needs of clients.

  • Utilized the latest frameworks, technologies, toolkit, and processes in delivering designs for websites.

Portfolio

Software Developer - F1Microb
Software Developer - F1Microb

Worked on a microbiology lab management solution on the project - handling all processes and tasks on the SDLC. Built the frontend components and integrated backend services in delivering the solution.

Software Developer - Asset Manager
Software Developer - Asset Manager

Developed an innovative web app to manage educational materials and assets. Built the solution using MERN stack - handling all design, development, configuration, debugging and troubleshooting tasks on the solution.

Software Developer - Project Manager
Software Developer - Project Manager

Developed a web application to help users manage projects and tasks using NextJS and Strapi. Implemented features and functionalities to handle reusable tasks, organize tasks into categories, add/remove tasks or members, and assign members to project tasks.

Education

React
React
TestDome
2021 - 2021
Numerical Reasoning
Numerical Reasoning
TestDome
2021 - 2021
Logical Reasoning
Logical Reasoning
TestDome
2021 - 2021
JavaScript and Node.js
JavaScript and Node.js
TestDome
2020 - 2020
Diploma in Electrical and Computer Engineering
Diploma in Electrical and Computer Engineering
Aristotle University of Thessaloniki
1992 - 1997 (5 years)