David MejiaFull Stack Developer
Mission-driven Software Engineer with a 5-year track record at fast-growing US-based startups. Specializing in Full stack and Backend development using Ruby on Rails, Node.js, ReactJS, VueJS, and TypeScript. In addition to my technical skills I demostrate strong soft skills, including empathy, effective communication, and valuable teamwork. Committed to contributing with hard work in product development and driving company growth.
Certifications
Ruby
Ruby on Rails (RoR), Ruby
11/26/2019
Tech stack
Ruby on Rails (RoR) (2)
Ruby
MATLAB (6)
React (5)
Node.js (4)
TypeScript (3)
Python (3)
GraphQL (3)
APIs (2)
Architecture (2)
Scrum (2)
Logistics (2)
Optimizely (1)
Elasticsearch
HTML
Data Structures
Webpack
Algorithms
REST APIs
Git
Experience
Software Engineer IIICalendly
04/2022 - 01/2023

Software engineer working in the Growth and Activation Squad running experiments and enabling the experimentation in the company. I worked as a Software engineer in the Growth and Activation Squad, building and running experiments and enabling the company's experimentation. - The experiments were Full stack experiments in the onboarding section of the application to understand and increase the retention metrics of new users. - In the tooling side of experimentation, I participate in the integratio of the Optimizely SDK integration in a brand-new microservice. - I participated in the modernization of the complete app attending weekly meetings where a voluntary group of engineers discussed the strategy to move the company from a monolith application towards micro services-oriented architecture.

Optimizely
Ruby on Rails (RoR)
Node.js
React
Software EngineerDocketwise
04/2021 - 04/2022

A Modern immigration software & case management. Currently It is #1 rated immigration software solution from Philadelphia. https://www.docketwise.com

Ruby on Rails (RoR)
React
Software EngineerLean Tech IO
02/2020 - 04/2021

Worked as a Software Engineer for Trinet Global Logistics Inc. located in Dollard-Des-Ormeaux, QC, Canada https://gotrinet.com/

Logistics
Python
Node.js
React
GraphQL
TypeScript
Software EngineerOrder
03/2018 - 08/2019

Order simplifies and modernizes business purchasing. It allows clients to have just one place to make purchases from any number of vendors resulting in Time an Money savings to any size business. - I contributed expanding the core application with a Service Oriented Architecture where we developed a Vendor Bridge application. - I worked maintaining and adding new features to the core application, creating and consuming Restful APIs - I developed skills to work both remotely and also within agile methodologies such as Scrum and Scrumban.

Scrum
APIs
Architecture
Python
Node.js
React
GraphQL
TypeScript
Full Stack DeveloperMake it Real.Camp
03/2018 - 04/2018

Working developing new modules for MakeitReal.camp. I design and implement new back end features with technologies such as: Rails, Ruby, Postgres, Javascript. https://makeitreal.camp/

Ruby on Rails (RoR)
Group Leader SiEM (Smart industry Energy Management)Freelance
07/2016 - 09/2016

The group participated in the entrepreneurship and innovation contest of CODENSA oriented to develop energy efficiency solutions to the small industrial sector in Bogotá. I Lead the group SiEM composed by two engineers one industrial designer and one business administrator. My team end in 5th place among 75 group all over Colombia.

MATLAB
Research assitantPontificia Universidad Javeriana
02/2013 - 09/2015

I worked on Smart Grid & Micro grid topics under the advise of professor Diego A. Patiño. The project was based on the design and development of a Smart grid model that intend to explain didactically the concept and functionalities of the future power grid called smart grid. Key elements such as distributed generation, self healing, demand response, smart metering etc where explained with the smart grid model. The model uses a wirless sensor network based on ziggbie technologies to comunicate with the central controller that operates and control the whole system. In the central controller a built in SCADA system made in Labview is in charge off the operation of the smart grid.

MATLAB
AdvisorPontificia Universidad Javeriana
02/2013 - 01/2015

I worked for a SMART GRID PROJECT where one of my task was to advice Undergrad projects like: + Small scale electric vehicles. + Hardware device for monitoring and control of energy. + Turn an educational PEM Fuel cell kit into an distributed generation test bed.

MATLAB
T.A linear system LabPontificia Universidad Javeriana
02/2013 - 07/2013

I had the opportunity to teach the linear systems laboratoy. At the lab some Control systems Plants like, helicopter 2dof, Inverted pendulum, active suspension and ball and beam were used to simulate and control with linear control techniques.

MATLAB
Education
Software arquitectureMake it Real
02/2019 - 02/2019
Bachelor of Science (BSc)Pontificia Universidad Javeriana
02/2006 - 02/2012
Portfolio
http://this-is.bio/david-mejia
May 2023 - May 2023