Diego Freniche Brito - Mobile Apps Developer, sometimes Teacher

Contact info

Current Position

(May 2021 -) Realm Mobile Developer Advocate at MongoDB

  • creating content for the Realm DevHub (blog posts, videos, streaming, etc.)
  • interacting with the community through Social Media (mainly Twitter/LinkedIn), trying to help people struggling with Realm.
  • speaking at conferences on Mobile Development topics.
  • advocating internally at MongoDB for Realm Developers, trying to create the best possible Developer Experience.
  • helping the team in anything needed, from content review to writing code.

Past experience

(Jan 2018 - May 2021) Senior Mobile developer at Teamwork.com.

For two years I’ve been maintaining the existing Projects & Desk Mobile Apps, written in CoffeeScript / Titanium Appcelerator. Technologies used:

  • Node.js
  • CoffeeScript
  • Axway Appcelerator
  • Swift / Java (for the native modules and extensions)
  • gulp, bash, Ruby for the tooling

I’ve also been helping with the native/Swift Chat App. Last year at Teamwork I worked on the new native iOS App for Teamwork, using:

  • Xcode (of course)
  • clean architecture, several layers
  • tests with Quick/Nimble
  • RxSwift
  • Realm for local persistence
  • Cocoa Pods & SPM
  • Bitrise as CI
  • SwiftLint
  • Sourcery

Mobile Developer at Mobile Jazz:

  • crafting Android & iOS Apps in Swift / Objective-C


  • developing Apps in a contract-based basis
  • teaching public & private sector customers how to develop iOS & Android Apps. I teach in Spanish & English, mainly inside Spain but also in other countries.

IT Service Manager at Isotrol

August 2008 – December 2009 (1 year 5 months)

  • in charge of a team of 8 System Admins
  • organizing, developing, maintaining all the IT infrastructure for a +250 organization

Responsible of in-house training at Isotrol

January 2007 – August 2008 (1 year 8 months)

  • working with HR, create and execute a training plan using both private and public funds.
  • execute +14000 training hours / year

Consultant at Incyde

2005 – 2006 (1 year)

  • working with SMEs, helping in their IT needs with a clear focus in making more money with IT

Teacher (Linux & Java) as a Freelance January 2000 – November 2006 (6 years 11 months)

  • Creating course agendas and materials. Organizing travel. Teaching people.

Freelance Writer at PCWorld España

June 2004 – January 2005 (8 months)

Freelance Team Manager at Telefonica Soluciones

November 2002 – August 2003 (10 months)

  • building a team to develop complex web pages for mayor Towns in Spain

Founder at Elelog, S.L. at 2000 – 2003 (3 years)

Programmer at Isotrol

September 1997 – August 1999 (2 years)

Computer technician / VB Programmer at Teknoservice, S.L.

1997 – 1998 (1 year)


  • Strong IT knowledge: I love Computer Science. Always learning. Always trying to improve, both personal and professionally.
    • Programming languages I’ve used in chronological order: BASIC, PASCAL, C, C++, Clipper, Delphi, VB6, Java, Objective-C, JavaScript, Kotlin, Swift
    • Also have a good foundation using UNIX operating systems: been using Linux since 1994, OS X since 2008. Have been running a small data center (120 servers) at Isotrol.
  • Outstanding communication skills both oral & written. Thanks to an extensive training & speaking experience (+12 years) and constant learning. I’m used to speak in public.
  • Team building: I’ve been building/leading teams through all my career.

Public speaking

  • Speaker at AltConf Madrid 2019
  • Speaker at iOSDevUK 2016
  • Speaker at Seville Developers Conference
  • Speaker at iOSDevUK 2014
  • Speaker (two workshops, iOS) and Android) at the Gran Canaria TIC (GCTIC) Forum
  • Speaker at the WipJam - MWC 2014
  • Speaker at the NSSpain conference, Sept 2013
  • Speaker at the BCNDevCon conference, Dec 2012
  • Founder of the NSCoder Nights Seville meeting group of Cocoa developers
  • Regular appearances at the Spanish development podcast We.Developers

My SlideShare


Industry certifications

  • SCJP 1.6 (Sun Certified Java Programmer) / Oracle
  • SCJP 1.5 (Sun Certified Java Programmer) / Oracle
  • SCWCD 1.5 (Sun Certified Web Component Developer)
  • SCBCD 1.3 (Sun Certified Business Component Developer)
  • ITIL Foundation v2 OGC / APM Group


University of Seville - Bachelor on Computer Science (Informática SS.FF.)