Aleksandar Nikolic

June 2022 - January 2024

Teladoc Health specializes in telemedicine, virtual healthcare, and AI-driven remote medical care via mobile apps and videoconferencing.

• Contributed to the development of a health app at Teladoc, fostering seamless patient-doctor interactions and collaborating with a cross-functional team of 30 developers, including 10 external iOS developers.

• Utilized Swift 5 and the MVVM pattern to enhance a large-scale codebase, emphasizing Clean Architecture and SOLID principles while ensuring robust code coverage with Unit Tests.

• Focused on feature development, bug fixes, and maintenance in an Agile environment, ensuring timely delivery and an optimal user experience.

June 2021 - June 2022

Delivery Hero is a local delivery platform that operates in over 70 countries, combining technology and human-driven efforts to deliver fast and seamless experiences.

• Developed a Payment SDK for credit card integration, designed to be a pluggable and platform-agnostic client solution, with part of the payment logic shifted from the consumer app to the SDK.

• Created project architecture, implemented design, covered the project with unit tests, and defined contracts between the client’s app and backend.

January 2019 - June 2021

CNJ delivers digital product design and development, specializing in UX/UI, multi-market websites, apps, APIs, and SaaS solutions.

• Developing the Danfoss Installer and DEVI app for Danfoss (Denmark), utilizing a synchronized local database and API server.

• The Danfoss Heating application provides plumbers, heating and HVAC professionals, and installers with tools for dimensions, calculations, and documentation, simplifying the sales and installation of Danfoss products.

August 2016 - January 2019

ABP Technologies is an international IT services and consultancy company, comprising UI/UX developers and designers, QA engineers, front-end developers, and VoIP experts.

• Using native Swift to develop applications from scratch such as: Vaiox, a social networking app with chat and audio/video functionality; CherryFile, a cloud-based file-sharing service; and NoQue, an app for nightclub table reservations.

• Responsible for application creation, architecture and design, testing, and app publishing.

• Utilizing REST, Push Notifications, In-App Payments, Stripe, Geolocation, SIP, audio/video streaming, and dynamic content.

April 2015 - August 2016

Holycode provides product development, IT nearshoring, ERP development, and low-code development services.

• Developed and maintained a mobile solution for managing insurance portfolios in the Swiss and German markets, designing architecture, and implementing new features.

• Ensured high-quality application performance by testing on simulators and real devices, optimizing the UI with Auto Layout, animations, and tracking tools.

• Integrated REST services, push notifications, and other key functionalities while collaborating closely with Android developers, Product Owners, Designers, and Backend teams.

• Followed the SCRUM methodology, contributing to all project phases, from concept creation to app store deployment.

January 2013 - April 2015

Procescom offers innovative solutions specifically designed for telecom mobile network operators, focusing on mobile core networks and mobile core infrastructure.

• Redesigned the application to improve maintainability and developed new features for Telecom Serbia's prepaid promotion system.

• Created and maintained large databases.

• Implemented detailed logging and handling of external system failures.

• Worked with multithreading, TCP/UDP protocols, and provisioning and charging logic.

• Contributed to product management, including future planning.

Bachelor of Software Development, Information Systems

Faculty of Computer Science (RAF), Belgrade

2006-2012

Besides his extensive experience, Aleksandar has also undertaken several intriguing private projects in related fields. Here are a few of them. (edited)

FormulaV

• Application for booking formula simulation competitions.

DBReisekosten App (for Deutsche Bahn):

• Rewrote the application from Objective-C to Swift.

• Designed new architecture, fixed bugs, and worked on new features.

• Utilized REST Services, Push Notifications, and Realm.

• Worked in an Agile environment.

Lykke (iOS Developer):

• Developed an application for currency and cryptocurrency trading.

• Improved application architecture and created new features.

• Collaborated closely with Product Owners, Designers, and Backend teams.

• Followed SCRUM methodology.

Globaltel iOS App (for the Serbian market):

• Used native Swift to develop an application for messaging, audio calling, and streaming videos (TV channels).

• Implemented REST Services, Push Notifications, audio/video streaming, dynamic content, sockets, and payments.

QuestaGame iOS App (for the Australian market):

• Maintained the application and developed new features using Swift.

• Integrated geolocation and chat functionalities.

Scanner App:

• Built a new feature for the Scanner app in Swift.

• Worked with a local database, image editing/processing, and In-App payments.