Dimitrios Chantzis

Informatics Engineer and Web Developer based in Brighton, UK


About


Resume

Professional profile

  • 12 years experience in Software Engineering, including back-end and front-end development, interface design and conceptual work.
  • 7 years working experience in the UK.
  • Formal education in the fields of Computer Science and Design & Digital Media.
  • Experience with Laravel (5.1 - 5.7), Symfony (2 & 3) and Zend frameworks.
  • Experience with Front-End development.
  • Experience with API integrations of financial transaction systems (Sync/Async) and reconciliation checks and reports.
  • Experience in leading projects, management, training and mentoring new team members.
  • Decisive and self-motivated engineer in the areas of Informatics Applications, Digital Design and Graphic Illustration.
  • Disciplined and able to work independently using my own initiative as well as collaborate within teams and follow directives.
  • Reserve military officer (OF-1) with working experience as Director of the I.T. Stuff office at the 88th Military Brigade of Greece.
  • Attending industry conferences such as Laravel London (2018, 2019), UX Camp Brighton Redux (2019), Amazon AWS London (2018), UX Brighton (2017).
  • Illustrator and sketch artist.

Experience

02/2017 - ...
Senior Software Engineer
11/2016 - 02/2017
Software Engineer
Technologies:
  • PHP(OOP),
  • Laravel (5.1 - 5.7),
  • SQL,
  • MySQL,
  • Amazon AWS,
  • Git,
  • Vagrant
Responsibilities:
  • Working to continuously improve the Tillo product & service in line with the company priorities, business plan and strategy.
  • Helping bring new Partners on board, supporting their integration to the Tillo API and running the certification process.
  • Enabling new brands through processor integrations (3rd-party APIs) and configuration.
  • Supporting the running of the production service w/ Service Desk for Partners.
  • Producing automated tests to ensure a high-quality product.
  • Leading the development of projects and identifying additional work that is crucial to the integrity of the service.
  • Mentoring and training new members of the team.
  • Extending the core API (v1 & v2) to support integration with Sync and Async 3rd-party APIs.
  • Developed solutions to securely support transactions, payment transfers, financial reconciliation reports and SAP integration.
  • Maintaining the integrity of the services throughout the development of new projects, while writing secure code.
  • Writing documentations and guides for the product and services.
Additional Information:

Promoted to Senior Software Engineer after 14 months. Wrote a comprehensive document for the Company's RND tax relief claim. Attended Laravel London (2018, 2019), UX Camp Brighton Redux (2019), Amazon AWS London (2018), UX Brighton (2017).

Project Highlights:
  • Developed integrations with 3rd-party API processors that were used as best practice and formed the basis for subsequent integrations.
  • Created a centralized and simplified solution for generating exports (financial and other) from the UI and the multiple automated console commands.
  • Extended the service to track the effects of all transactions to the partner floats.
  • Created a scheduled check for identifying incomplete and failed transactions.
  • Performance optimization - Speed Enhancements of key services (Stage 1 & 2).
  • Extended the management UI to provide highly detailed listing and meaningful information for the multiple Queued Jobs.
  • AWS Elastic Beanstalk group deployment.
  • Extended and re-factored the product and services to support multiple currencies (API, transactions, payment transfers, user interface, financial reconciliation reports).
  • Introduced a unified/centralized way of managing the generation of sale entry exports, payment transfers, management hub exports with easily supporting 2 file formats (Excel and CSV) and with the additional option to switch the generation to use query chunks or normal output.
06/2016 - 11/2016
Senior Web Developer
22 Point Six - Burgess Hill, UK
Technologies:
  • PHP(OOP),
  • Symfony (2 & 3),
  • SQL,
  • MySQL,
  • HTML5,
  • CSS3,
  • JavaScript,
  • AJAX,
  • jQuery,
  • OpenCart,
  • Wordpress,
  • XML,
  • JSON,
  • Twig,
  • Git,
  • Vagrant,
  • Digital Ocean,
  • Amazon AWS,
  • MS Azure,
  • YML,
  • Pimple
Responsibilities:
  • Back-End development of new projects.
  • RESTful API development.
  • Development, staging and production server setup.
  • Managing the projects databases.
  • Maintaining the back catalog of the agency's projects.
  • Server maintenance.
  • Managing projects backups on Amazon AWS.
  • Writing documentations and guides.
Project Highlights:
  • The BDM Group company systems and services.
  • Thomas Marsh.
10/2015 - 06/2016
Full Stack Developer
Freelance - Brighton, UK
Technologies:
  • PHP(OOP),
  • Symfony 3,
  • SQL,
  • MySQL,
  • HTML5,
  • CSS3,
  • JavaScript,
  • AJAX,
  • jQuery,
  • Drupal 7,
  • Wordpress,
  • XML,
  • JSON,
  • Twig,
  • Git,
  • Vagrant,
  • Digital Ocean,
  • Amazon AWS,
  • Markdown,
  • Jekyll,
  • YAML,
  • Adobe Photoshop
Project Highlights:
  • Worked with the Swiss start-up younergy (formally energyswiss).
  • Developed a number of websites with Jekyll/Liquid using my a CSS Grid system with modular and scalable typography (rem units) that I developed, used for this website as well as my jamesdoe.com online portfolio.
06/2015 - 11/2015
Senior Web Developer
Mosaic Digital - Brighton, UK
01/2013 - 06/2015
Full Stack Developer
Mosaic Digital - Brighton, UK
Technologies:
  • PHP(OOP),
  • Zend,
  • SQL,
  • MySQL,
  • HTML5,
  • CSS3,
  • JavaScript,
  • AJAX,
  • jQuery,
  • Drupal 7,
  • JSON,
  • Twig,
  • Git,
  • Markdown,
  • Idiorm & Paris
Responsibilities:
  • Part of a talented multidisciplinary team, working primarily as a Back-end Developer.
  • Responsible for maintaining the full back catalog of the agencies projects, as well as rebuilding and expanding functionalities.
  • Maintaining and expanding the Zend-based agency CMS and creating re-usable modules.
  • Organizing and planning the development of new projects, through guidelines to minimize repetition of code.
  • Managing the projects databases.
  • Responsible for testing and launching projects.
  • Development and staging server setup.
  • Part of the core agency team that produced the new agency CMS, based on Drupal 7.
  • Creating and expanding Drupal 7 modules.
  • Writing documentations and guides.
Additional Information:

Working on a variety of different bespoke websites, often in parallel.

Project Highlights:
  • Brightwave, National Numeracy, NHS (Sussex Partnership), Virtual Gurus, TMA World, London Business School, Close Brothers, British Heart Foundation, Winterflood, GSM Travel, Capital Region USA Scenic Spyways, Tessello, Tysers, Reed & Mackay.
02/2011 - 06/2012
Full Stack Developer
Tera Media - London, UK & Athens, Greece
Technologies:
  • PHP,
  • SQL,
  • MySQL,
  • (X)HTML,
  • CSS,
  • JavaScript,
  • AJAX,
  • mooTools,
  • jQuery,
  • JSON,
  • XML,
  • Drupal 6
Responsibilities:
  • Planning, designing and developing the back-end, front-end structure and code for new projects.
Additional Information:

Responsibilities also included maintaining the agency's old projects.

05/2011 - 07/2012
Director of the I.T. Stuff office at the 88th Military Brigade of Greece | Second Lieutenant (OF-1) of the 'Research and Informatics' Military Corps
Hellenic Army Forces - Greece
Responsibilities:
  • Lead a small team of IT soldiers, responsible for maintaining the IT infrastructure of all the Units and Army Camps under the Brigade.
  • Additional responsibilities included the production and editing of daily, weekly and monthly reports for Secret, Top Secret and Special Handling Top Secret documents and reports.
  • Training new personnel in military technologies.
  • Every calendar month for four 24-hour shifts, served as the Communications Officer of the Brigade, overlooking everything that was concerning the area of the Brigade and reporting to the Brigadier and the Colonels of the Staff Offices.
Additional Information:

Instead of serving as a soldier for the mandatory nine months of national army service, due to education and professional experience in IT, was selected and trained as an Officer and served as a director of a Brigade Stuff office.

Project Highlights:
  • During my service I was able to continue working remotely as a Web Developer for Tera Media.
07/2009 - 10/2010
Full Stack Web Developer
Tera Media - London, UK & Athens, Greece
Technologies:
  • PHP,
  • SQL,
  • MySQL,
  • (X)HTML,
  • CSS,
  • JavaScript,
  • AJAX,
  • mooTools,
  • jQuery,
  • JSON,
  • XML,
  • Drupal 6
Responsibilities:
  • Planning, designing and developing the back-end, front-end structure and code for new projects.
  • Responsibilities also included maintaining the agency's old projects.
Additional Information:

Started my first collaboration with Tera Media, three months before studying at the MSc in Design and Digital Media, up until graduation.

Project Highlights:
  • Developed tidbit.tv (originally branded as syzy.gy) an online story telling tool that allows storytellers combine image/video/audio and text to create their own digital story. I also developed a number of brochure websites.
09/2008 - 12/2008
Call center operator
Vodafone - Thessaloniki, Greece
Responsibilities:
  • Worked at the customer service section of the call center, specializing on contract connections.
Additional Information:

Undertook role in order to raise funds for the MSc at the University of Edinburgh.

09/2007 - 06/2008
Web Development Teacher
Win.net Digital Education Center - Thessaloniki, Greece
Technologies:
  • XHTML,
  • CSS,
  • Adobe Dreamweaver,
  • Adobe Flash,
  • MS FrontPage
Responsibilities:
  • Worked as a Web Developer teacher on the basic and advanced practices that were used back in 2007.
Additional Information:

Undertook role in order to raise funds for the MSc at the University of Edinburgh.

05/2007 - 06/2008
Call center operator
ASANA / ATTACK - Thessaloniki, Greece
Responsibilities:
  • While studying at the BSc in Computer Sciences, worked as a call center operator for telemarketing sales of books and videos.
Additional Information:

Undertook role in order to raise funds for the MSc at the University of Edinburgh.

04/2006 - 10/2006
Full Stack Developer [BSc Internship]
Thessaloniki Technological Educational Institute - Thessaloniki, Greece
Technologies:
  • JSP,
  • PostgreSQL,
  • JavaScript,
  • (Χ)HTML,
  • CSS,
  • XML
Responsibilities:
  • • Six month internship creating a web application to be used for the administration of proclamations of Professors for the Department of Informatics.
10/2004 - 06/2005
ECDL Teacher [Volunteer]
Association of St. Dimitrios - Thessaloniki, Greece
Technologies:
  • Word,
  • Excel,
  • PowerPoint,
  • Access,
  • Outlook,
  • FrontPage
Responsibilities:
  • During studying for the BSc in Computer Sciences, spent a year working as a Volunteer ECDL teacher for the MS Office Suite 2003 to gain experience and insight as a teacher.

Education

2011

School of Research and Informatics Corps

School of Signal Corps

School of Reserve Officers

Hellenic Armed Forces - Athens, Greece
2009 - 2010

MSc in Design and Digital Media

The University of Edinburgh - Edinburgh, UK
2002 - 2008

BSc Informatics Engineer (Computer Sciences)

Alexander Technological Educational Institute of Thessaloniki - Thessaloniki, Greece

Technical skills

PHP(OOP), Java2, C++, Fortran, Assembly, ActionScript 3.0, Prolog
Laravel (5.1 - 5.7), Symfony (2 & 3), Zend, Pimple
HTML5, CSS3, SMACSS, SASS, JavaScript, AJAX, jQuery, Liquid, YAML, Markdown, JSON
Drupal 7, Wordpress, Jekyll, OpenCart
MySQL, PostgreSQL, IBM DB2, MS Access
Git-Flow
Vagrant, Cron, cURL
Apache Server configuration, maintenance, Virtual hosts, SSL Certificates, Vagrant, PuPHPet, Digital Ocean, AWS Elastic Beanstalk
Photoshop, Illustrator, InDesign, Corel Painter IX, Autodesk SketchbookPro
Blender, Microstation '95
Mac OS X, Ubuntu, Windows
UML

Languages

English
  • 8 years living in the UK
  • TOEFL-iBT (Grade: 94/120, March 2009)
  • Cambridge Certificate of Proficiency in English (CPE) (Grade: C, December 2001)
  • Cambridge First Certificate in English (Grade: B, December 1997)
Greek
  • Native Tongue

Interests

  • Programming, Interface design and graphic design.
  • Illustration, sketching, cartooning.
  • Sequential storytelling (comics, storyboards).
  • Writing short stories.
  • HIIT Weight Training, swimming and SUP.
  • Cooking.
  • Reading literature (fiction and non-fiction).
  • Listening podcasts and audio-books.

Work

Mosaic Digital

01/2013 - 06/2015

Technologies:
  • PHP,
  • Zend,
  • SQL,
  • MySQL,
  • HTML5,
  • CSS3,
  • javaScript,
  • AJAX,
  • jQuery,
  • Drupal7,
  • XML,
  • JSON,
  • Twig,
  • Git,
  • Markdown,
  • Idiorm & Paris

Personal / Freelance projects

2005 - ...

Technologies:
  • PHP,
  • SQL,
  • MySQL,
  • HTML5,
  • CSS3,
  • javaScript,
  • AJAX,
  • jQuery,
  • Wordpress,
  • XML,
  • JSON,
  • Twig,
  • Git,
  • Markdown,
  • Wordpress,
  • YAML,
  • Liquid,
  • Jekyll

Contact

Name *

Location

Brighton & Hove, U.K. BN3