Juan Roldán
Software Engineer ▪ Technical Delivery Manager
Certified ScrumMaster (CSM)
Date of birth: April 30th - 1989
Nationality: Argentine
Marital Status: Single
Mobile: +54 9 381 --
Engineer, Rails Developer, Technical Recruiter and Certified Scrum Master with +5 years of experience, in
permanent research and progress with great experience on both technical and management sides.
Results-oriented with a delivery focus and really skilled working on big and small groups.
Always available to meet clients, analyze requirements, offer improvements and solutions, plan, schedule,
organize projects, design, code, test application features, synchronize efforts, meet deadlines and
communicate ideas effectively to technical and non-technical folks alike.
Passionate for simple solutions to complex problems.
Personal quote: "To get something you never had, you have to do something you never did".
Professional Experience
DriverReach - United States Startup
www.driverreach.com
Ruby on Rails Developer | Remote work
Aug 2016 - Present
➢ His work here includes time and risks estimations, frontend/backend integration tasks, tests writing and backend
refactors. Developments coordinated through Skype, GoogleHangout and Slack services.
➢ Analytics implementations from scratch through SegmentIO (Google Analytics & Intercom). Tracking 14 different
events within the platform: registration steps, purchases, accepting driver applications, sending messages and more.
➢ Signup process improved by providing insights to Drivers before accessing the platform: # of matching companies
based on location, license class, years of experience and job type preferences (part-time, full-time).
➢ SMS communication between recruiters and drivers improved: recruiters can directly contact drivers. Also the
platform provides automatic responses to drivers sending SMS messages to companies.
➢ Drivers signup process improved by reducing the # of steps required, re-arranging questions, setting less but more
efficient requirements leading to an increase on successful signups (UX & BE work provided).
➢ CRM developed for recruiters to improve communication with drivers, handle meetings and any missing
requirements, ensuring each driver a successful application to trucking companies across United States. Recruiters
can now keep track of each driver's progress on a daily basis.
➢ Technologies involved on this platform: MySQL, Rspec/FactoryGirl/Capybara (TDD frameworks), Amazon S3 API
(image storage), Omniauth (social integration), Devise (Signup/Login workflows), WickedPDF (PDF’s files generation
for on-demand user’s queries and emails attachments) and Twilio API (SMS messages).
OraHQ - New Zealand Startup
www.orahq.com
Ember JS / Ruby on Rails Developer | Onsite work
Jan 2016 – Aug 2016
➢ His daily work included technical guidance, leadership on every step of maintenance/development of an online
platform, analysis and troubleshooting of long time functionalities (2 years old and more), performing
frontend/backend code refactoring, transforming ideas coming from Marketing/Product teams into new
functionalities for the Ora App.
➢ Successfully in charge for 8 months of developing new functionalities related to the billing area of the Admin section,
performing database performance improvements and testings, generating PDF orders via background jobs,
re-balancing the work each background queue is taking care of and providing new interfaces for Admin users to
generate weekly reports in a much faster and logical way.
➢ He managed to setup the first caching implementation within the platform that increased general performance,
drastically reduced daily API calls to Google Analytics and led the way to future implementations in other sections.
➢ Performed lightning talks for colleagues regarding MVC Patterns, Agile Techniques and Caching implementations.
➢ Technologies involved on this platform: MySQL, Rspec/FactoryGirl/Capybara (TDD frameworks), Amazon S3 API
(image storage), Omniauth (social integration), Devise (Signup/Login workflows), I18n (internationalization features),
Google Speed & Insights API, EmberJS (JS Framework) and WickedPDF (PDF’s files generation for on-demand user’s
queries and emails attachments).
AREA 17 - France
www.area17.com
Ruby on Rails Developer & Project Manager | Remote work
May 2014 – Jan 2016
➢ His daily work on this company included analysis and troubleshooting of long-time functionalities (2 years old and
more), performing frontend/backend code refactors, handling platform migration process (both Ruby and Rails) and
achieving a considerable performance improvement, transitioning from Google Analytics into SegmentIO/Intercom
third-party tools.
➢ He’s also led a 5 members team on project “Dering Hall”, distributed around 3 countries: United States, Argentina and
France, into a project’s full redesign (both frontend and backend sides), DB data migration, cleaning up code
sessions, integrating new modules and pages, delivering an entire new site in a period of 8 months with successfully
weekly deploys and live demos shared with the client. Site: www.deringhall.com
-➢ He’s participated on project “Krrb”, a web application that allow users to buy and sell articles of their own. A fun,
friendly and safe place to connect with neighbors for local and in-person commerce. Site: w
ww.krrb.com
➢ The work on this project was mainly analysis and troubleshooting of long-time functionalities, performing
frontend/backend code refactors and supporting the team during launches and hot fixing.
➢ Always coordinating efforts with colleagues from France and United States through Hipchat and Google Hangout
services, followed by successfully weekly production deploys.
➢ Technologies involved on this platform: MySQL and MongoDB (databases), Sphinx/ElasticSearch (search engines),
Errbit (app exceptions management), Rspec/FactoryGirl/Capybara (TDD frameworks), Amazon S3 API (image
storage), Omniauth (social integration), Devise (Signup/Login workflows), Braintree (handling subscription and daily
payments), I18n (internationalization features) and Geokit (geolocalization features).
➢ Work's acknowledgements: http://opticalcortex.com/improving-user-experience-without-design/
StarterTables - Belgium Startup
www.startertables.com
Ruby on Rails Developer & Technical Delivery Manager | Remote work
Jan 2014 – Jun 2015
➢ A web application focused on providing entrepreneurs with tools and future colleagues to start their own company,
all at an affordable cost. This project is still in "beta" phase, currently being tested with a private community of users.
➢ His daily activities included coordination of a 4 members team distributed around 3 countries: Argentina, Brazil and
Belgium; weekly updates to Product Owner and production deploys.
➢ It was his responsibility to:
○
○
○
Evaluate each requirement/feature/backlog-item from Product Owner.
Determine frontend/backend needs to be built.
Validate decisions beforehand with client on weekly meetings.
➢ Application delivered after 18 months of work while entered in private "beta" phase.
➢ Technologies involved on this platform: PostgreSQL (databases), ElasticSearch (search engine), Airbrake (app
exceptions management), Rspec/FactoryGirl/Capybara (TDD frameworks), Omniauth (social integration), Devise
(Signup/Login workflows), Braintree (handling subscription payments), PayPal API (handling services payments inside
the platform), WickedPDF (PDF’s files generation for on-demand user’s queries and emails attachments), rQRcode
(QR codes generation of tickets for events created through the platform).
Globant - Argentina
http://www.globant.com/
Ruby on Rails Developer & Technical Delivery Manager | Onsite work
Aug 2013 – Apr 2014
➢ He led the development on project “Nobleza Obliga”, an argentinian crowdfunding web application focused on
humanity causes for all Latin-America: www.noblezaobliga.com
➢ The work on this project included payments internalization through MercadoPago, implementation of Paypal API,
successful production deploys for 5 months and live demos shared with client.
➢ Technologies involved on this platform: PostgreSQL (database), Backbone (modular JS code and rendering views),
Airbrake (app exceptions management), Rspec/FactoryGirl/Capybara (TDD frameworks), Amazon S3 API (image
storage), Omniauth (social integration), Devise (Signup/Login workflows), MercadoPago and PayPal APIs (Payment
Gateways), I18n (Internationalization features) and Geokit (geolocalization features).
➢ Work's acknowledgements:
http://www.globant.com/press-release/globant-works-noblezaobliga-expanding-its-crowdfund
ing-platform-latin-america-0
-➢ He led the development on project “Tirana”: a web application that manages enrollment campaigns for several
colleges of United States: www.tiaa-cref.org/public/index.html
➢ Application built for “TIAA-CREF”, Fortune 100 financial services organization which is the leading retirement provider
for people who work in the academic, research, medical and cultural fields on the United States.
➢ The work on this project included developing key filters in the UI, providing an improved enrollment system for 2014
with new validations, new UI features, consultant and delivery management steps, successful production deploys for
5 months and live demos shared with client. Team size: 3 members.
➢ Technologies involved on this platform: PostgreSQL (database), Backbone (modular JS code and rendering views),
Errbit (app exceptions management), Rspec/FactoryGirl/Capybara (TDD frameworks), Devise (Signup/Login
workflows), PDFKit (PDF generation features).
-➢ He worked on project “Apartments”: A web application that manages most of the renting apartments activity in
United States: www.apartments.com
➢ His work on this project included frontend/backend integration tasks, tests writing, backend refactors,
pair-programming, live demonstrations of the application with clients, collaborating and coordinating efforts with a 14
developers team, providing successfully frontend and backend solutions sprint by sprint for 6 months.
➢ Technologies involved on this platform: PostgreSQL (database), Backbone (modular JS code and rendering views),
Airbrake (app exceptions management), Rspec/FactoryGirl/Capybara (TDD frameworks), Amazon S3 API (image
storage), Devise (Signup/Login workflows), I18n (internationalization features) and Geokit (geolocalization features).
Insignia - Argentina
http://insignia4u.com/
Ruby on Rails Developer & Project Manager | Onsite work
Jan 2012 – Aug 2013
➢ He was part of a 4 members team developing a platform called “TableHopping NY”, web application that manages
restaurants and tables allowing users to arrange meetings and owners to promote their places around New York:
www.tablehopping.nyc
➢ He also worked within a 3 members team developing a platform called “BurdaStyle”, web application oriented to
fashion designers to showcase their work and products to clients and designers around the world:
www.burdastyle.com
➢ His work on these projects included: time and risks estimations, frontend/backend integration tasks, tests writing,
code refactors, coordinating efforts with developers from France and United States, organizing meetings with project
managers for live demonstrations and successfully weekly production deploys.
➢ Technologies involved on these projects: MySQL, PostgreSQL and MongoDB (databases), Backbone (modular JS
code and rendering views), Airbrake/Errbit (app exceptions management), Rspec/FactoryGirl/Capybara (TDD
frameworks), Amazon S3 API (image storage), Devise (Signup/Login workflows), Omniauth (social integration), I18n
(internationalization features) and Geokit (geolocalization features).
Education and Training
Education:-
Tucuman National University - Argentina: “BS in Computer Science”
Technical Courses Completed:-
Scrum Alliance
Cambridge University
“Certified Scrum Master”
“Business English Certificate - Level B1”
Languages:
➢ Spanish - Fluency: Native speaker.
➢ English - Fluency: Full professional proficiency.
➢ Italian - Fluency: Basic proficiency.
Conference speaker:
➢ "Engineering Week" event with "WebRTC Basics". National Technological University.
July 2014. Link: http://juanroldan.com.ar/talks/web-rtc-introduction.pdf
➢ "Engineering Week" event with "Meteor Basics". National Technological University. June 2013. Link:
http://juanroldan.com.ar/talks/meteor-javascript-framework-for-the-future.pdf
➢ "Engineering Week" event with "Fast Mobile Prototyping". National Technological University. July 2012. Link:
http://juanroldan.com.ar/talks/fast-mobile-prototyping.pdf
Other
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Italian Citizenship: Granted on September 12th, 2014.
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Fitness Enthusiast: Regularly attend the gym.
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Favorite sports: Soccer, Paddle and Swimming.
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Big fan of barbecues and electronic music.
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Linkedin profile: http://ar.linkedin.com/in/juanroldan89/
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Stackshare profile: http://stackshare.io/juanroldan1989/my-stack
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Working examples mainly used to test and experiment different technologies during time:
https://github.com/juanroldan1989/ionic-movie-quotes
https://github.com/juanroldan1989/movie_quotes
https://github.com/juanroldan1989/event_finda_ruby
https://github.com/juanroldan1989/my-budget-app
https://github.com/juanroldan1989/find-my-post
https://github.com/juanroldan1989/foodie-blog-api
https://github.com/juanroldan1989/foodie-blog