Angel SzymczakBack End Developer
Angel Szymczak is a experimented software engineer with 6+ years of IT experience using multiple technologies and development tools including Ruby and JavaScript. In addition, he recently added ReactJs to his stack. He pursues the good practices that DevOps culture proposes when creating CI and CD pipelines that automate and integrate multiple tools, technologies and cloud platforms, such as Azure and AWS. He is very interested in Blockchain. Feel free to contact me anytime!
Tech stack
Ruby (5)
RSpec (5)
Ruby on Rails (RoR) (4)
JavaScript (3)
HTML (3)
CSS (3)
Docker (3)
Microsoft Office (2)
Sidekiq (2)
Vim Text Editor (2)
Elasticsearch (2)
Sinatra (2)
GitHub (2)
Bitcoin (2)
Capistrano (2)
Blockchain (2)
Leadership (2)
Linux (2)
Go (1)
Amazon Web Services (AWS) (1)
Serverless Framework (1)
Flexbox (1)
Serverless (1)
Microsoft Power BI (1)
Natural Language Processing (NLP) (1)
Heroku (1)
Redis (1)
Apache Kafka (1)
Sass (1)
Azure (1)
Experience
Senior DeveloperSOUTHWORKS
05/2020 - 02/2021

Custom Software Development. Tech Stack: Go/Gorilla-Mux, gRPC, JavaScript, NodeJs, Serverless Framework, AWS, Pulumi, Apache Kafka. - Planned, designed, and developed 2+ software projects from zero to deploy by using Lean methodologies. - Contributed workshop about chatbot tech for the commercial and technical public of 10 Microsoft attendees. - Incorporated leadership tasks, managing dashboard, task assignments, sprint plannings and deliverables facilitator.

JavaScript
Go
Amazon Web Services (AWS)
Serverless Framework
Serverless
Microsoft Power BI
Natural Language Processing (NLP)
Leadership
Apache Kafka
Azure
Senior Ruby Software EngineerNubi
09/2019 - 05/2020

Crossborder payment solutions for Paypal users in Argentina Tech Stack: Ruby, Ruby on Rails, RSpec, JavaScript, NodeJs, Docker, Jenkins, AWS, Jira, BitBucket. - Proposed and implemented the auditory async service through the whole transaction remittance processing. - Redesigned the flow of fee calculations according to the tax regulations and emerging taxes of Argentina. - Performed interviews for Hiring Process.

JavaScript
Python
Ruby on Rails (RoR)
Docker
Node.js
Atlassian
Leadership
RSpec
Jenkins
Ruby
Senior Ruby Software EngineerBitex
12/2017 - 06/2019

Design of blockchain Crossborder, Remittances, Payments, Trading solutions for the financial B2B and retails. Tech Stack: Ruby, Ruby on Rails, RSpec, JavaScript, HTML, CSS, Docker, Capistrano, AWS, GitHub, Trezor. - Provided liquidity for the broker orberbook exchange to the local market implementing automated short trading strategies with different assets like Bitcoin, BTC Cash, USD, ARS, and other ones. - Created the Bitex Ruby SDK that allows the use of the Bitex API services. Trading Bot Project - Scaled local trading software joining several wallets throw Kraken, Bitstamp, Bitex, Bitfinex, ItBit and Bitso bank web services in order to build a High Frequency Trading Bot that provides liquidity to their customers. - Refactored and robusted solution implementing end-to-end testing and Ruby best practices.

JavaScript
Docker
HTML
CSS
Capistrano
Bitcoin
RSpec
Blockchain
GitHub
Ruby
Ruby Full Stack DeveloperSesocio
03/2017 - 12/2017

Crowdfunding Investment Market Tech Stack: Ruby, Ruby on Rails, RSpec, AWS, Heroku, SOAP, HTML, CSS, Bootstrap, Flexbox, SASS, PostgreSQL, Metabase, Redis, Twilio, CliengGo, Hubspot. - Refactored the monolithic web application applying SOLID principles and Ruby best practices reducing rendering times by 60%. - Integrated sign up validation of credit risk (VERAZ), person validation from national people records (ANSES) and account owner by SMS allowing clients to operate assets on single check-in click. - Integrated automated billing system with the national tax collecting agency (AFIP).

Ruby on Rails (RoR)
HTML
CSS
Flexbox
RSpec
Heroku
Redis
Sass
PostgreSQL
Ruby
TeacherGeneral Directorate of culture and education
07/2015 - 12/2015

• Substitute Teacher – IT July 2015 - December 2015 Middle School N° 2 Grade – 1° C • Substitute Teacher – New information technologies and communications August 2015 - December 2015 Middle School N° 2 Grade – 4° 6° • Substitute Teacher – Installation and configuration of operating systems and applications October 2015 - December 2015 Middle School N° 2 Grade – 2° I • Substitute Teacher – Electronic Tecnology October 2015 - December 2015 Technical School N° 2 Grade – 4° 7° • Substitute Teacher – Electronic Tecnology October 2015 - December 2015 Technical School N° 1 Grade – 4° 7°

Microsoft Office
Specialized Technical SupportRandstad Argentina
06/2015 - 08/2015

Eventual position Projects: Technical Support on BUE Machines (Electronic Single Ballot)

Linux
Software Developer - Ruby on RailsCeSPI
09/2013 - 05/2015

Tecnologies: • Ruby: Sinatra, Ruby On Rails, ActiveRecord, Rspec, Factory Girl, several gems. Projects: • Student Logbooks • Meran (Metasearch engine – Libraries Systems) • Paycheks

Ruby on Rails (RoR)
Sidekiq
RSpec
Vim Text Editor
Elasticsearch
Sinatra
Ruby
InstructorProyecto E-Basura
12/2013 - 12/2014

Activities: • Report about digital gap and pollution poblems by RAEEs. • Trainning aspiring PC repairers.

Linux
Microsoft Office
University TutorFacultad de Informática, Universidad Nacional de La Plata
12/2013 - 05/2014

Activities: • Decrease dropout students. Ensuring permanence and continuity of studies. • Didactic-curricular and psycho-educational counseling support. • Survey information useful for implementing strategies that promote quality.

Microsoft Office
Education
Full Stack DeveloperEscuelaDevRock - Google Developers Group
12/2016 - 12/2016
LifeguardAMGAA
03/2015 - 06/2016
System's DegreeFacultad de Informática - Universidad Nacional de La Plata
03/2013 - 12/2017