Galileo Guzmán

About me
Senior Full Stack Engineer, specializing in Backend development with over 6 years of experience implementing new features for backend systems using modern architectures and frameworks, like Django, Chalice, FastAPI. Strong knowledge of mobile development along with the capability to cope with the tasks of different complexity levels. Great troubleshooting skills and extensive experience in developing performance-demanding software for various platforms. Excellent analytical, communication, writing, and problem-solving skills. Able to work under tight deadlines and rapidly changing priorities. Proven success engineering customized solutions improving business processes, operations, and profitability.
Tech stack
Experience
Mobile DeveloperReddit Inc
Mobile Developer
Reddit Inc
02/2021 - 08/2021

As a Senior iOS Engineer (Contractor) I participated in the Ads Platform Team adding new functionalities for the iOS application to increase the number of A/B Testing for the Ads requested by customers, also I was in charge of increasing the code coverage for the new swift implementation of the app. My contract was for only 6 months where I participated on the agile flow inside Reddit improving an internal product of the company.

Technologies

Objective-CiOSSwiftPython
Technical LeadBring me that
Technical Lead
Bring me that
09/2020 - 02/2021

As Technical Lead I should have gone through the definition of a new Continuos Integration process for the company, add a new development framework was the best decision I made here. I started adding code reviews and a better definition of tickets, having conversations with the client and developers to define the best way to add more value to the project without forgetting the quality of our work.

Technologies

AndroidiOSSwiftPythonDjangoHerokuKotlin
Back End DeveloperBoomsourcing
Back End Developer
Boomsourcing
02/2019 - 07/2020

As a contractor for Boomsourcing to help them with backend features and improvements I accomplish add a new Microservices/Serverless Architecture using Chalice and AWS tools. One of the main objectives since I arrived to the project was handling the call center calls recording for more than 10 millions of calls at day. I created a new architecture using Adapter pattern to integrate a new Library I made for this used when a secret environment variable was present at system so it called the endpoint to start processing a call.

Technologies

PythonDjangoAWS DynamoDBAWS Cloud Architecture
Software Architectmichelada.io
Software Architect
michelada.io
07/2018 - 03/2021

As a Senior Software Engineer, I was in charge of taking requirements from American clients, create estimation documents following PERL methodology, creating tickets, participate in different meetings such as planning, daily, and retrospective meetings following the agile approach. Most of the time I participated in writing code for backend systems in different technologies such as Python, Django, Chalice, and once I did great accomplish delivering code written on Ruby. But also, I should have done four mobile applications of different verticals of business using Swift and Kotlin.

Technologies

AndroidObjective-CiOSSwiftPythonDjangoKotlin
Product ManagerDatyra Inc
Product Manager
Datyra Inc
07/2017 - 10/2018

As a Product Manager at Datyra, I was in charge of help clients to define and estimate requirements for their products. One of the tasks I did was planning the projects and create estimations of the requirements we defined. Then I participated in the development cycle as a scrum master or a developer. One of the projects I created here was a social network for musicians to find gigs and invite people to play with them and pay for that service. Another project was a SaaS project for Chemical Labs, which we created from scratch using React and RoR, from low to high fidelity designs with different subscriptions models using Stripe API. Last but not less I created the official app for a large chain of stores of products based on cannabis allowing their customers to track their requests, do payments and manage their prescriptions, all of this following a HIPPA compliance approach.

Technologies

AndroidObjective-CReact NativeiOSSwiftReactJavaAWS CLI
Mobile DeveloperBlue People | Mi Telcel
Mobile Developer
Blue People | Mi Telcel
03/2017 - 12/2018

As a Senior iOS Engineer, I was in charge of the definition of the tickets the team will work on. I implemented a Git flow process for the team to get better release management. Also, we implemented unit testing to increase the quality of the code we added. The payment procedure was improved by adding more secure storage of tokens on execution time. One of the challenges I accomplished was the creation of a new entire section to sell special packages one month before the Worldwide Soccer Championship allowing the company to increase the volume of sales by 67%.

Technologies

Objective-CiOSSwiftJavaScriptObject-oriented Programming (OOP)HTMLCSS
Mobile DeveloperCheckEat MX
Mobile Developer
CheckEat MX
08/2016 - 08/2017

As a Senior iOS Developer, in CheckEat I created the mobile application for iOS devices allowing the company to start getting clients and users. This startup allowed me to understand how a product might grow up while you get more users and traffic. After a lot of work, the company participated in Shark Tank Mexico getting a good deal for everyone. I worked on some backend new features using Django, AWS, PostgreSQL for allowing restaurants to publish their menus and receive orders accepting credit and debit cards.

Technologies

Objective-CiOSDjangoObject-oriented Programming (OOP)iOS APIiOS UI DesignAWS API GatewayAWS CloudFormationDjango REST FrameworkAWS CLI
Mobile DeveloperSmart Place
Mobile Developer
Smart Place
08/2015 - 08/2016

As an iOS Developer, I should have worked on different projects, the high accomplishment was that we made 14 applications in 12 months all of them for different kinds of clients. Since the most important casino brand in Mexico until a federal government office, our work was recognized for the quality and delivery time. I worked focused on iOS development and backend definition of process and API we would use to implement on the mobile apps. We also participated in YCombinator with a product being selected for the YCombinator S2016 getting more knowledge and understanding about products and companies.

Technologies

Objective-CiOSSwiftPythonDjangoObject-oriented Programming (OOP)API ArchitectureDjango REST FrameworkAPI Development
Software ArchitectMRCI
Software Architect
MRCI
01/2015 - 09/2015

As a Software Engineer, at MRCI I worked on different projects implementing automation of different office processes. We developed two systems that handle sports events such as marathons and soccer games to buy tickets through a web application and also a mobile app for iOS and Android devices.

Technologies

Objective-CPythonDjangoObject-oriented Programming (OOP)Django REST Framework
Technical LeadCORTV
Technical Lead
CORTV
06/2010 - 01/2015

As an Office Manager of the IT department, I was in charge of a team of 20 with different roles such as Engineers, Designers, and Video Editors. We were in charge of the maintenment for all the VoIP and working of the building. Also, the company needed specific software to handle internal process and projects.

Technologies

PHPJavaScriptPythonDjangoRuby on Rails (RoR)CodeIgniterHTMLCSSLaravelAWS Cloud Architecture
Education
01/2017 - 01/2017
Scrum Master Certified
Agile Academy
12/2013 - 12/2015
Master Degree in Internet Technologies
Universidad Autonoma de Guadalajara
08/2008 - 07/2011
Bachelor Degree in Information Management
Universdidad del Golfo de México