Guillermo MaschwitzSolidity Developer
As a senior software developer with over 15 years of professional experience and more than 8 years working remotely for US-based startups and software factories, Guillermo enjoys helping geographically distributed teams improve their streams of value through thoughtful planning, design, and implementation of high-quality software.
Certifications
C1 Advanced
C1 Advanced, B2 Upper Intermediate, B1 Intermediate
10/07/2021
Tech stack
B1 Intermediate
C1 Advanced
B2 Upper Intermediate
PHP (11)
Linux (11)
JavaScript (9)
TypeScript (7)
Docker (7)
CSS (7)
HTML (7)
SQL (7)
Terraform (6)
API Development (5)
AngularJS (5)
Bootstrap (5)
DevOps (4)
Angular (4)
Node.js (4)
Ethereum (3)
Web3.js (3)
Truffle (3)
Solidity (3)
Amazon Web Services (AWS) (3)
Google Cloud (3)
Design (3)
Automation (3)
Symfony (3)
LAMP (3)
API Architecture (2)
Ruby on Rails (RoR) (2)
Experience
Blockchain DeveloperProfesional independiente
07/2021 - Currently

Development of Solidity smart contracts, fungible and non-fungible tokens (ERC20, ERC721, ERC1155), and web3 applications as a consultor for decentralized finance platforms and distributed autonomous organizations. Tools: Truffle, Hardhat, OpenZeppelin libraries, OpenZeppelin testing environment, Gnosis safe, Docker, Terraform, Linux, Ganache, web3, ethersjs, Moralis.io, etc. Language: Solidity, Typescript, NodeJS, HCL. Chains: Ethereum, BSC, Polygon, and other EVM compatible chains.

Terraform
Ethereum
Solidity
TypeScript
Truffle
Web3.js
Linux
Docker
Software ArchitectGun.io
01/2019 - 06/2021

Software design and development, DevOps, process automation, infrastructure-as-code, cloud & local infrastructure automation, highly-available & scalable infrastructure, mentoring.

Terraform
Automation
TypeScript
Design
Angular
Node.js
Google Cloud
DevOps
Docker
Amazon Web Services (AWS)
Full Stack EngineerLiveclicker
10/2017 - 01/2019

Software design and development, responsible for high-impact projects, scalable web apps, process design, process automation, chrome extension development, technical screening, training, code reviews, communication with technical stakeholders, basic DevOps tasks.

Design Patterns
Ad Serving
TypeScript
Software Design
Angular
Node.js
DevOps
Linux
Docker
Full Stack EngineerStreamlineSocial
09/2013 - 10/2017

Software design and development, code reviews, operations, project planning, communication with clients, product owners, and technical stakeholders

Bootstrap
Linux
AngularJS
SQL
JavaScript
PHP
Full Stack EngineerFreelance Website Developer
12/2011 - 09/2013

Software design and development, system architecture, operations, communication with US-based clients, project management.

Ruby
API Development
API Design
API Architecture
CSS
HTML
Linux
Ruby on Rails (RoR)
JavaScript
PHP
Full Stack EngineerReplayful
06/2009 - 12/2011

Software design and development, communication with US-based clients, requirement analysis.

API Development
CSS
HTML
JavaScript
PHP
Back End EngineerIndependiente (freelance)
02/2008 - 04/2010

Software development, communication with clients, operations, and project management. PHP, Symfony, HTML, CSS, SQL, LAMP

Symfony
LAMP
CSS
HTML
SQL
PHP
Education
Tecnólogo en informáticaUniversidad de la República
02/2011 - 02/2016
Bachelor’s Degree in Computer ScienceUniversidad de la República
02/2003 - 02/2007