Dejan is available for hire

Dejan Beljic

Verified Expert in Engineering

Software Engineer and Magento Developer

Belgrade, Serbia

Toptal member since October 11, 2019

Expertise

Back-end Developers PHP MySQL Magento Migration Engineering jQuery AWS GitHub Jira SCADA

Bio

Dejan is a software engineer with 16+ years of experience. Since 2011, he has worked as a consultant, senior back-end developer, and support engineer on various Magento 1 and Magento 2 projects. He has also led or worked in many international development teams. Dejan is eager to acquire new knowledge and he strongly believes that broadening knowledge is the key to success.

Portfolio

Silver Gold Bull Inc.

PHP, Magento, Redis, Elasticsearch, Amazon Web Services (AWS), APIs

Elabelz

Magento 2, Magento, Apps, Magento API, Adobe Commerce, Magento Cloud

eCommistry

Amazon Web Services (AWS), Magento 2, Magento, Back-end, APIs, MySQL, React...

Experience

PHP - 17 years
MySQL - 17 years
Magento 1 - 11 years
Adobe Commerce - 10 years
eCommerce - 9 years
Magento - 9 years
Amazon Web Services (AWS) - 6 years
Magento 2 - 5 years

Availability

Part-time

Preferred Environment

Amazon Web Services (AWS), Bitbucket, PhpStorm, Ubuntu

The most amazing...

...project was the migration from Magento CE 1.3 to Magento EE 1.10, including a catalog with more than 500,000 products and three websites.

Work Experience

Magento Back-end Developer via Toptal

2021 - 2022

Silver Gold Bull Inc.

Developed an application for a metals trade, specifically gold and silver.
Provided Magento 1 app monitoring. Fixed bugs and performance issues.
Integrated the app with nFusion, CloudFlare, CloudFront, and Fintrac.

Technologies: PHP, Magento, Redis, Elasticsearch, Amazon Web Services (AWS), APIs

Magento Expert and Lead via Toptal

2020 - 2021

Elabelz

Performed the migration of customer Webshop to Magento 2 Cloud.
Led integration with CRM, helping with mobile app development.
Imported catalogs from the legacy system using Firebear extension and customizations.
Customized Multi-marketplace extension for several retails.

Technologies: Magento 2, Magento, Apps, Magento API, Adobe Commerce, Magento Cloud

Tech Lead

2017 - 2021

eCommistry

Led support teams on various projects (M1 EE, M1 CE, M2) running in AWS.
Suggested solutions and project and infrastructure improvements.
Performed code and performance optimizations on legacy projects.
Quoted and estimated new M2 projects (new builds, migration).
Contributed to building the Magento/PHP internal training.

Technologies: Amazon Web Services (AWS), Magento 2, Magento, Back-end, APIs, MySQL, React, Full-stack, Magento Extension Development, eCommerce

Team Lead

2015 - 2017

Solution for Human Capital

Led development team, new projects setup, and migration.
Implemented several M1 and two M2 Commerce Cloud projects.
Suggested solutions and project/infrastructure architecture and provided support for implemented projects.
Participated in various integrations with third-party services (SAP, Cloudinary, among others).

Technologies: Magento 2, Magento 1, MySQL, APIs, Full-stack, Back-end, Magento Extension Development, Magento, eCommerce

Senior Magento Developer, Team Lead, and Support Engineer

2011 - 2015

Westum

Led the development team on various Magento enterprise projects.
Worked as a team member of the international support team to Magento Enterprise clients.
Implemented various Magento features and functionalities through extensions.
Proposed components and tools for development and led an internal training initiative.
Organized code reviews and coding standards implementation across the company.

Technologies: MySQL, PHP, Magento 1, APIs, Full-stack, Back-end, Magento Extension Development, Magento, eCommerce

Expert Associate

2010 - 2011

Metropolitan University, Faculty of Informational Technologies Belgrade

Designed and built an internal Java-based information system.
Served as a teaching assistant on the subject C# Basics.
Acted as a teaching assistant on the subject of Information Systems design.
Took part in internal e-learning system maintenance.
Built documentation and various learning materials.

Technologies: Oracle, MySQL, Apache Tomcat, RichFaces, JSF, Hibernate, Spring

Software Developer

2007 - 2010

Telekom Serbia

Provided support for VAS (value-added services) payment platform.
Implemented various VAS services (voting, parking, safe SMS).
Implemented various internal Web applications using Java and Symfony.
Provided support for mobile operator prepaid/P\postpaid payment systems.
Built Java-based call charging system for a customer support center.

Technologies: Oracle, MySQL, Microsoft SQL Server, JBoss, Symfony, PHP, Apache Struts, Hibernate, Spring, Java EE, Back-end

Expert Associate

2004 - 2007

Institute Mihailo Pupin, Automation and Control Systems, Belgrade

Participated in SCADA system development, maintenance, and support.
Built various PLC control programs (Mitsubishi and Omron).
Implemented IEC 101 communication protocol between Mitsubishi PLC and SCADA system.
Constructed an internal Java-based ticketing system for internal use.
Contributed to various system control implementations in heating plants and water supply stations.

Technologies: PHP, Java, SCADA, IEC 61131

Experience

Retail – Fundraising

Full Magento 2 Commerce Cloud implementation based on the client's requirements.

• Magento 2 customization.
• Integration with the client's ERP system.
• Third-party modules installation and customization.

Used: M2 Commerce Cloud, Jira, GitHub, Blackfire, and New Relic.

B2B – Pharmaceutical Industry

Retail – Food Industry

Full Magento Enterprise implementation (Chinese and Hong Kong markets).

• Member of an international team of 5-7 front-end and back-end developers and three QA engineers.
• Support QA testing and validation.

Used: M1 EE, Scrum, Jira, FishEye, Crucible, and Vagrant.

Retail – Professional Equipment

https://www.manfrotto.com/

Full Magento Enterprise implementation.

• Client discovery (define functional and non-functional requirements, assumptions, system architecture, and estimates).
• Determined components and tools for development.
• Implemented coding standards and code review procedures.
• Prepared training for the client.
• Determine and lead the development team.

Used: M1 EE, Review Board, and Bitbucket.

Retail – Apparel and Accessories

https://www.sportzone.pt/

Full Magento Enterprise implementation based on client requirements.

• Magento application customization, including module planning, development, and testing.
• Integration of custom gift card system and Magento.
• Supported QA testing and validation.
• Team (international team with more than ten front-end and back-end developers and five QA engineers)

Used: M1 EE, Scrum, Jira, FishEye, Crucible, and Vagrant.

Education

2004 - 2007

Specialist Degree in Internet Technologies

Faculty of Organizational Sciences - Belgrade, Serbia

1997 - 2003

Master of Science Degree in Electrical Engineering, Computer Science and Systems Control

Faculty of Technical Sciences - Novi Sad, Serbia

Certifications

JANUARY 2020 - JANUARY 2023

AWS Certified Cloud Practitioner

Amazon Web Services

AUGUST 2019 - PRESENT

Magento 2 Certified Associate Developer

Magento

JANUARY 2015 - PRESENT

Magento Certified Solution Specialist

Magento

JANUARY 2013 - PRESENT

Magento Certified Developer Plus

Magento

Skills

Libraries/APIs

jQuery, RichFaces, React

Tools

PhpStorm, GitHub, Bitbucket, Jira, Apache Tomcat, AWS ELB, Crucible, Vagrant, Blackfire, Atlassian Fisheye

Languages

PHP, Java, C#

Platforms

Adobe Commerce, Magento 1, Magento 2, Magento, Magento Extension Development, Magento Enterprise, Magento Community Edition, Amazon Web Services (AWS), Magento API, Ubuntu, Oracle, Java EE, JBoss, Docker, New Relic

Storage

MySQL, Microsoft SQL Server, Redis, Elasticsearch, Amazon S3 (AWS S3)

Frameworks

Zend Framework, Spring, Hibernate, JSF, Apache Struts, Knockout (Knockout.js), Symfony

Paradigms

Scrum

Other

Back-end, APIs, Migration, eCommerce, IEC 61131, SCADA, Electrical Engineering, PWA, Full-stack, Architecture, Progressive Web Applications (PWAs), Apps, Magento Cloud, Software Deployment, Web Security

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