Konstantinos Chalkidis Email & Phone Number

Thessaloniki, Central Macedonia, Greece

As a Software Tech Engineering Lead at Pfizer, I played a pivotal role in driving transformative initiatives to elevate the efficiency and performance of our software development processes. One of my key achievements was spearheading the re-architecting and ensuring security compliance of a critical billing and budget tracking system within the company. This endeavor not only demanded a comprehensive understanding of the system's intricacies but also required me to strategically restructure the software development team dedicated to this project. The impact was profound, resulting in a remarkable increase in productivity exceeding 200%.Simultaneously, as part of my broader responsibilities, I continued to lead the design and deployment of applications on AWS, contributing significantly to the enhancement of overall operational efficiency. Taking charge of training new developers became even more critical, and I successfully equipped them with the specialized skills and knowledge.My commitment to excellence extended to overseeing the release cycles of multiple products, ensuring their timely delivery to align with crucial business objectives. To streamline and fortify the development process, I initiated the design and implementation of CI/CD pipelines on GitHub. This not only improved collaboration among teams but also facilitated faster and more reliable releases.Recognizing the importance of maintaining coding standards and enforcing quality gates, I introduced robust practices utilizing tools like SonarQube. This commitment to excellence not only upheld the integrity of our releases but also elevated the overall quality of our software.Furthermore, I extended my influence as a facilitator in a Tech club dedicated to software development. Actively fostering knowledge sharing and cultivating a culture of innovation within the company, I remained committed to driving positive change and fostering an environment of continuous improvement.

Thessaloniki, Central Macedonia, Greece

Leading a development team on maintaining and introducing features for POS software.● Managing the tasks and workload of developers and arranging the release cycles onvarious products.● Providing guidance on technologies, security and design. Supervising the training of newdevelopers in the company's culture and methodologies.● Ensuring the PCI compliance of the end product delivered in multiple platforms.● Analyzing and designing software requirements for integrations with third partysoftware/apis(FiServ, ValueTec, PAX, DoorDash, FIS, FireBase,Apple)

Thessaloniki Greece

Developing mainly with Java, Swing, Oracle, Perforce.Working also with Spring, HTML, JavaScript, Bash, Gradle and Git.Automating tests with JUnit, Mockito and Jenkins.Implementing and maintaining integrations with Credit Card processors, integrations with Hotel PMS software, Data Warehouse solutions and Enterprise reporting, Rest APIs for in-house projects and third party software, enhancing Email Marketing platforms, enhanced and optimized a menu config/management/delivery platform for restaurant chains, Order Taking Call Center for restaurant chains, Drivers for printers and other hardware and more.Training new developers into the company’s ORM system and providing guidance for new featuresMaintaining and improving in house ORM systemMaking code reviewsRedesigning legacy code

Thessaloniki Greece

Leading and managing a QA team (QA-engineers) over multiple products and projects related with hospitality POSInterviewing, training and coaching internsManaging product release cyclesOptimizing regression testing processWhite and black box testing Design, write and review test casesAutomated tests with TestNG and Selenium

Greece

Teaching Database theory, Discrete Mathematics and Mathematical logic.

Master'S Degree, Computer And Information Sciences, 9.07

Bachelor'S Degree, Computer Science

Education record

Education record

Education record