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William Ferreira
Florianopolis, Brazil
Software developer by trade with 3+ years of professional experience, with strong focus in back-end development.
CodersRank Score
What is this?
This represents your current experience. It calculates by analyzing your connected repositories. By measuring your skills by your code, we are creating the ranking, so you can know how good are you comparing to another developers and what you have to improve to be better
Information on how to increase score and ranking details you can find in this blog post.
255.8
CodersRank Rank
Top 3%
Highest experience points: 0 points,
0 activities in the last year
C
35.9
exp.
Java
27.7
exp.
JavaScript
31.8
exp.
JSON
63.6
exp.
C++
10.2
exp.
TSQL
4.2
exp.
Python
17
exp.
TypeScript
47.1
exp.
SCSS
6.3
exp.
HTML
5.5
exp.
List your work history, including any contracts or internships
NEXTI
Jul 2022 - Oct 2022 (3 months)
Backend Developer
• Build and maintain RESTful APIs (both internal and public);
• Write automated tests and improve overall code quality;
• Work alongside the PO to determine priorities and deadlines;
• Volunteered to help the QA team by doing some of their tasks;
• Technologies used: Java 8, Spring Boot, AngularJS, MySQL 8, JUnit 4, Postman, Linux.
• Write automated tests and improve overall code quality;
• Work alongside the PO to determine priorities and deadlines;
• Volunteered to help the QA team by doing some of their tasks;
• Technologies used: Java 8, Spring Boot, AngularJS, MySQL 8, JUnit 4, Postman, Linux.
Previdenciarista
Aug 2021 - Aug 2022 (1 year)
Backend Developer
• Worked alongside the CEO to implement new features, from analysis and design to execution and maintenance;
• Implemented novel calculations methods generically, anticipating production launch by several months, giving the company an edge
over their competitors;
• Implemented PIX (Brazilian electronic payment system) for the company’s in-house payment gateway, with the objective of com-
pletely replacing the traditional billing system;
• Built a PDF scraper, making heavy use of regex, to extract benefit data from the lawyers’ clients, to ease the registration process, as
well as building a data lake for future use;
• Quickly adapted to new responsibilities when the entire back-end team disbanded shortly after I joined the company;
• Technologies used: Java 11, Gradle, Google Guice, Docker, AWS (ECS, S3, RDS, Lambda, CW), Postman, JUnit 5, MySQL 5.7 and 8,
Docker, Redis, Linux.
• Implemented novel calculations methods generically, anticipating production launch by several months, giving the company an edge
over their competitors;
• Implemented PIX (Brazilian electronic payment system) for the company’s in-house payment gateway, with the objective of com-
pletely replacing the traditional billing system;
• Built a PDF scraper, making heavy use of regex, to extract benefit data from the lawyers’ clients, to ease the registration process, as
well as building a data lake for future use;
• Quickly adapted to new responsibilities when the entire back-end team disbanded shortly after I joined the company;
• Technologies used: Java 11, Gradle, Google Guice, Docker, AWS (ECS, S3, RDS, Lambda, CW), Postman, JUnit 5, MySQL 5.7 and 8,
Docker, Redis, Linux.
Sinqia
2 years
Software Developer
Jan 2020 - Aug 2021 (1 year 7 months)
• Made significant contributions to almost all products in the department, from pension funds management systems, loans systems,
election systems, automation jobs, Docusign integrations, among other things;
• Mentored two Junior Developers to get them up to speed with the tech stack and business;
• Worked alongside actuaries to implement a complex registration fee technique for one of the clients;
• Considered a reference for my colleagues towards the end of my tenure there;
• Technologies used: Java 8, Spring Boot, Maven, Angular 9, JSP, JavaScript, Postman, MySQL.
election systems, automation jobs, Docusign integrations, among other things;
• Mentored two Junior Developers to get them up to speed with the tech stack and business;
• Worked alongside actuaries to implement a complex registration fee technique for one of the clients;
• Considered a reference for my colleagues towards the end of my tenure there;
• Technologies used: Java 8, Spring Boot, Maven, Angular 9, JSP, JavaScript, Postman, MySQL.
Support Analyst
Aug 2019 - Jan 2020 (5 months)
• Diagnosed technical issues for 20 clients (private pension funds) by phone, email or chat;
• Fixed bugs, deployed smaller features;
• Ticket escalation to dev teams dropped significantly during my time there;
• Tracked down and fixed a major bug that went unnoticed for years for one of the clients, avoiding a possible lawsuit against the company.
• Fixed bugs, deployed smaller features;
• Ticket escalation to dev teams dropped significantly during my time there;
• Tracked down and fixed a major bug that went unnoticed for years for one of the clients, avoiding a possible lawsuit against the company.
Add some compelling projects here to demonstrate your experience
Reborn Fighters (3D fighting game)
Feb 2022 - Present
Joined the ongoing project to help set up the server doing an assortment of tasks, such as: web
scraping, automated translation, web development, configuring the database, automating backups,
configuring TCP BBR on the server to improve network performance.
scraping, automated translation, web development, configuring the database, automating backups,
configuring TCP BBR on the server to improve network performance.
This section lets you add any degrees or diplomas you have earned.
Udesc Esag
Bachelor's degree, Economics (Incomplete)
Jan 2018 - Jan 2022
Instituto Federal Catarinense - Campus Araquari
Trades, Information Technology
Jan 2011 - Jan 2014