Software Engineer Developer

Blumenau, SC, Brasil

+55-47-991******

Jonatas Daniel Hermann *******.*******@*****.***

Software Engineer

I'm a software engineer with more than 7 years of experience, working with mobile and web technologies with great knowledge of code quality, scalability, best coding practices and distributed services. With a strong web experience, I've worked in high-availability applications with a big dataset and applications to growing startups.

Working remotely through the Toptal network (top 3% talent worldwide) with different kind of companies on varied full and part-time engagements.

12/2016 - Present

09/2016 - 11/2016

08/2016 - 09/2016

01/2013 - 06/2016

Software Engineer

Holistic Hub

- Created a booking application on top of Ruby on Rails, PostgreSQL and Twitter Bootstrap;

- Used Stripe to perform payments and transfers;

- Built a responsive front-end with Twitter Bootstrap;

- Created a mini-CMS to manage some parts of the application;

- SMS notifications with Twilio API.

Stack: Ruby, Rails, PostgreSQL, Twitter Bootstrap, CSS, HTML, Javascript, Twilio API, Stripe API. Ruby on Rails Developer

Home Reserve

- Optimized the order and checkout process;

- Created responsive forms for different screen sizes;

- Optimized forms for mobile devices.

Stack: Ruby, Rails, Foundation, HTML, CSS, PostgreSQL Software Developer

United Hospital Fund of New York

- Created a survey application to track patient common diseases;

- Created a dynamic form with fields stored in a database;

- Responsive front-end on top of Bootstrap;

- Migration of old database to the new application;

- Optimized report generation from minutes to seconds. Stack: Ruby, Rails, Twitter Bootstrap, CoffeeScript, PostgreSQL, jQuery, CSS, HTML Software Developer

Seekr

- Migrated few applications from Heroku to AWS;

- Responsible of all AWS services management;

- Decoupled one monolithic application into small services;

- Improvement of many Sidekiq workers;

Summary

Work experience

https://www.visualcv.com/bwca8cta90m

04/2012 - 12/2012

09/2009 - 04/2012

- API performance improvements;

Stack: Ruby, Rails, PostgreSQL, Sidekiq, Redis, AWS, Heroku. CIO

Valicode

- Team management

- New product specifications;

- New product functionalities on top of Java, PostgreSQL;

- Development of Android apps.

Stack: Scrum, Java, PostgreSQL, Android, JPA.

Software Developer

Valicode

- Web applications development using Java, JPA and PostgreSQL;

- Development of MIDP2.0 applications to mobile phones;

- Android application development to tracking and delivery system;

- Android application development to insurance company. Stack: Java, JPA, PostgreSQL, Android.

Computer Science 01/2009 - 12/2013

Furb

Ruby

Rails

AWS

HTML

CSS

PostgreSQL

Java

Android

Education

Area of Expertise

https://www.visualcv.com/bwca8cta90m

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