Nikola Topalovic

Belgrade, Serbia

Member since March 6, 2014

Nikola is an experienced software engineer with a strong math and computer science background. His career spanned different domains and technologies and he can work within the whole spectrum of development, from architectural and programming requirements to deployment, testing, and technical writing.

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Portfolio

InterVenture GmbH - DRS
Ruby on Rails, Sinatra, AngularJS, PostgreSQL, Redis, RabbitMQ, RSpec, Git
nSphere Inc.
Ruby on Rails, MongoDB, CoffeeScript, RSpec, Cucumber, Objective-C, Git, Heroku
m2e Consulting Engineers - EuroICC
Objective-C, Java SE, Ruby, PHP, MySQL, SQLite, Mercurial

Experience

Ruby, 5 years
Ruby on Rails, 4 years
Objective-C, 3 years
JavaScript, 3 years
Clojure, 1 year

Availability

Part-time

Preferred Environment

Linux, Mac OS X, Emacs, Git, Zsh

The most amazing...

...project I've built is a virtual data room platform for collaborative work on highly confidential documents.

Employment

Senior Software Developer
InterVenture GmbH - DRS
2012 - 2014
- Performed core technology development including analysis, design, coding, and testing.
- Developed a service-oriented system for secure, high-speed document exchange.
- Redesigned and refactored parts of the previous platform.
- Built authentication libraries, hypermedia-aware APIs and clients, and other auxiliary tools.
- Created and maintained a robust test suite by practicing TDD.
- Produced specifications, documentation, and tutorials.
- Provided guidance during the development of the iOS client.
- Conducted technical interviews and code reviews, and provided mentorship to a team of developers.
Technologies: Ruby on Rails, Sinatra, AngularJS, PostgreSQL, Redis, RabbitMQ, RSpec, Git
Senior Software Developer
nSphere Inc.
2011 - 2012
- Designed and implemented RESTful APIs for a mobile survey platform.
- Developed and maintained a platform back-end for content creation and administration.
- Integrated a platform with various cloud services and third party APIs, including Amazon S3, PayPal, New Relic, and Mongolab.
- Built and maintained a test suite using RSpec and Cucumber.
- Provided guidance during the development of the iOS survey app.
- Conducted technical interviews.
Technologies: Ruby on Rails, MongoDB, CoffeeScript, RSpec, Cucumber, Objective-C, Git, Heroku
Lead Software Developer
m2e Consulting Engineers - EuroICC
2009 - 2011
- Led a small team to develop m2e's enterprise mobile applications and web services.
- Developed advanced prototypes of iOS-based inspection software, both stand-alone and client/server.
- Built iOS components for on-device report generation with multimedia and hand signature support.
- Programmed an iOS app to simulate an advanced chronometer with tidal conditions and forecasting.
- Created a web-based information system for an exclusive hotel and resort chain.
- Designed and implemented a compiler front-end for Ladder Diagrams, and integrated it into an existing Java/SWT development tool.
- Conducted technical interviews and code reviews, and provided mentorship to a team of developers.
Technologies: Objective-C, Java SE, Ruby, PHP, MySQL, SQLite, Mercurial
Freelance Consultant
Nikola Topalovic
2006 - 2009
- Managed my own clients, working on several smaller solo and team projects.
- Developed and deployed web crawlers utilizing Ruby, Mechanize, Capybara, PhantomJS.
- Built an eCommerce website using Magento, handling both back-end and front-end development.
- Designed an API in Ruby/Grape and an accompanying test suite for a recruiting platform as a consultant developer.
Technologies: Ruby, Ruby on Rails, PHP, PostgreSQL, MySQL
Lead Web Developer
NovaPoint - Mantacore Spearhead
2007 - 2008
- Led a small team to develop a dating portal from conception to successful product deployment and post-launch maintenance.
- Contributed to core back-end development, search optimization, testing, and deployment.
Technologies: PHP, MySQL, Sphinx, jQuery, SVN
Developer and Technical Writer
mikroElektronika
2003 - 2005
- Oversaw the company's online presence, including website implementation, content, design, maintenance, and integration with third party APIs.
- Produced most of the company's technical documentation, including specs and manuals for compilers, breadboards, and programmers.
- Provided testing, translation, and branding support for company's major software projects, including compilers and IDEs.
- Translated several technical e-books on microcontrollers and electronics into English.
- Introduced and maintained company's online forums and provided tech support.
Technologies: C, Pascal, Delphi, Assembly, PHP, MySQL

Experience

DRS - Virtual Data Rooms platform (Development)
http://drooms.com/
A platform for collaborative work on confidential documents that with tight security and control.
Scuddle - Social Recruiting Platform (Development)
Designed the first version of the platform API and a matching test suite as a consultant developer.
Ladder Logic Compiler (Development)
Designed and implemented the compiler front-end for Ladder Logic used in building automation, with a comprehensive test suite; prototyped in Ruby, rewritten in Java for integration into larger Java/SWT environment.
iOS Inspection Software (Development)
Developed full-featured iOS components for on-device report generation with template-based formatting and embedded multimedia with drawing, marking, and hand signature capabilities.
Toptal Mentor
Nikola is a mentor in the Toptal Global Mentor’s Program. This program is a partnership between Toptal and General Assembly to provide high quality mentorship for students from minority and low income backgrounds who are looking to begin their careers as professional software engineers. Nikola shows commitment to diversity in tech by mentoring a General Assembly student every week for a year, covering everything from coding tips and tricks to advice on making it in the industry.

Skills

Languages
Ruby, JavaScript, Objective-C, UML, SQL, Clojure, C, Java, R, HTML, CSS, PHP
Frameworks
Ruby on Rails, Sinatra, Grape, Capybara, AngularJS, Bootstrap
Tools
Git, Emacs, RSpec, Capistrano, Apache, SVN, Xcode, Nginx, Mercurial, IntelliJ IDEA, Adobe Photoshop, LibreOffice, ANTLR, LaTeX, Cucumber, JFlex, Microsoft Office, Jenkins
Paradigms
REST, Object-oriented Programming (OOP), MVC, Functional programming, Agile Software Development, Test-driven Development (TDD)
Libraries/APIs
Devise, jQuery, AMQP(RabbitMQ), AngularUI, SQLite
Platforms
Linux, Mac OS X, iOS, Amazon Web Services (AWS)
Storage
MySQL, PostgreSQL, Memcached, MongoDB, Sphinx, Redis
Misc
Unix Shell Scripts, Cryptography

Education

Master's degree in Computer Engineering
School of Electrical Engineering, University of Belgrade - Belgrade, Serbia
2013 - 2014

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