Konstantinos C. — Full-Stack Software Engineer (Java + React)

Expertise in Back-End Web.

Last verified on July, 2023

Core Skills

Bio Summary

- Full-Stack Software Engineer with 5 years of development experience
- Experience in AWS and messaging frameworks like Kafka and Spring Integration
- Reworked applications to meet changing market trends and individual customer demands
- Designed, developed, and implemented software applications for websites based on analyzed requirements and understanding of industry technical standards
- Reviewed code and debugged errors to improve performance
- Collaborated in a team-based, Agile environment to accomplish objectives by deadlines
- Versed in the latest technologies and most useful programming languages
- Fluent English
- Available in 1-2 weeks after approval for the project

Technical Skills

Programming Languages	Java, JavaScript
UI Frameworks, Libraries, and Browsers	Ajax, Ant Design, jQuery
JavaScript Frameworks	jQuery, React
Java Frameworks	Spring
Databases & Management Systems / ORM	MongoDB, SQL
Cloud Platforms, Services & Computing	AWS
QA, Test Automation, Security	Apache Maven
Version Control	Git
Deployment, CI/CD & Administration	Jenkins
Collaboration, Task & Issue Tracking	Jira, Redmine
Operating Systems	Linux
Methodologies, Paradigms and Patterns	microservices architecture, SOAP
Third Party Tools / IDEs / SDK / Services	Office 365
Web/App Servers, Middleware	Oracle WebLogic Application Server
SDK / API and Integrations	RESTful API
Other Technical Skills	Oracle products

Experience

Full-Stack Developer, iSignThis

October 2020 - Present

Description: Doing full-stack software development using Java8+, Javascript, and React together with Springboot + Docker + MongoDB, focusing on payment and KYC services implementation.

Team:10 members

Responsibilities:

KYC for payments and regulation.
Implementing features and production optimization and bugs

Java Software Engineer, Accenture

May 2018 - October 2020

Project:Hellenic Telecommunications Organisation S.A., OTE Group (the largest technology company in Greece)

Team: 50 members

Responsibilities:

Reworked applications to meet changing market trends and individual customer demands.
Provided technical direction and system architecture expertise.
Designed, developed, and implemented software applications for websites based on analyzed requirements and understanding of industry technical standards.
Reviewed code and debugged errors to improve performance.
Collaborated in a team-based, Agile environment to accomplish objectives by deadlines.
Participated in requirements gathering and design development meetings.
Provided high-level customer support to remote clients using the support Redmine system, successfully resolving and closing all issues daily.
Worked with business users and operations teams to understand business needs and address production questions.
Adjusted software parameters to boost performance and incorporate new features.
Wrote, modified, and maintained software documentation and specifications.
Monitor and guide the Offshore team.
Understand, analyze, and task breakdown of business requirements for new projects
Assign, oversee and support the task completion by newer team members
UAT Book SIT Book
Creating/expanding repository and database
Support and test Jenkins deployment process
Manage deployments in Oracle W

Tools & Technologies: Java, HTML, CSS, Jms, Oracle DB

Web developer, Focus On

December 2017 - February 2018

Responsibilities:

Designed, developed, and implemented software applications for a website based on analyzed requirements and understanding of industry technical standards.
Oversaw web platform testing, troubleshooting, and user sampling prior to live deployment.
Wrote lines of code using HTML, CSS, JavaScript, and jQuery languages.
Conducted testing and review of website design for responsiveness, clarity, and effectiveness

Education

Bachelor of Science: Informatics, University of Piraeus, Piraeus

September 2010 - January 2017

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