Hi,
I am Riheldo.
Experienced Fullstack Developer knowledgeable in user interface, SPA Web Application, backend. Able to effectively self-manage during independent projects, as well as collaborate in a team setting.

- Angular
- TypeScript
- JavaScript
- Node.js
- NestJS
- Python
- Keycloak
- Java
- SQL
- MySQL
- PostgreSQL
- MongoDB
- Elasticsearch
- HTML & CSS/SASS
- RxJS
- PrimeNG
- Angular Material
- Amazon AWS
Projects
Digital vault
Digital vault web application, with a master password, stores information encrypted with the AES-256 algorithm, using BIP-39 as the password recovery key.
Contract manager
Contract, installment, and bank account management system for institutions. System with bank integration for money transfers.
Ganko
Call control system, activities with interactive kanban, and knowledge base.
VERO
Labor process analysis platform, with process search, results forecasting via AI, and a coin-based monetization system.
- Angular
- Node.Js
- NestJs
- Express
- Python
- PostgresSQL
- Redis
Monitor
Point-of-sale monitoring system for retail chains, allowing you to track terminal statistics, transactions, operators, and daily routine/job execution, in addition to issuing real-time alerts for failures and errors.
Lucax
An ERP system comprised of three distinct applications (for managers, retailers, and organizations). The system allowed for advanced pricing control by tiers and channels, integrated record management with online stores, invoice issuance, inventory control, and a financial module for tracking revenue and expenses.
Fradik
Property sales website with customer portal for monitoring construction work and financial information.
- Angular
- NodeJs
- Express
- MongoDB
Instabuy
E-commerce for retailers, web app, mobile app, retailer portal.
- Angular
- Python
- Flask
- MongoDB
- MySQL
- AWS S3
- AWS Lambda
Others, no images
CMS
Content management system for institutions.
- Angular
- Node.JS
- NestJS
- Express
- MySQL
- MongoDB
- AWS S3
- AWS Lambda
- AWS SES
Payment
Integrations with multiple payment gateways.
- Node.JS
- Express
- MongoDB
- Python
- AWS SES
Jobs
Asynchronous processing routines and messaging.
- Node.JS
- Express
- MongoDB
- MySQL
- BullJs
- Redis
Real estate website with portal
A simple and elegant real estate presentation website
Libraries and small projects
- Keycloak as main IAM
- Raspberry Pi, network speed checker;
- PostgresSQL ORM for NodeJS and Typescript;
- CRM as library for projects above;
- Chat window, to be added on projects above;
Carrear
2023
2023
Senior Front-end Developer, Sicoob, Brasília
Sicoob is a bank on Brazil
- I was responsible to create a strategy to migrate an old front-end, adobe flash portal, to angular and write as minimal backend as possible;
- Help the team to fix some bugs on jsf templates.
2020
2020
Senior Fullstack Developer, Vicax, Brasília
Vicax is a software factory that drives technology to business. I am responsible for guiding the team to edge technologies, languages, frameworks and patterns to be used.
- Developed and presented solutions to executives and stakeholders, with business workflows diagrams, reports, analyzed and designed new systems and applications;
- I developed 20+ libraries, 2 design system and 3 Angular templates;
- I implemented and helped juniors and mid developers to use externals Angular templates, reaching deadlines;
- I oversaw UI/UX, developer team, and daily management of principal projects, by breaking big tasks to each individual;
- Implemented APIs on back-end in Node.JS;
- I implemented scripts and plugins to generate and validate codes, by improving developer experience, madding 2x faster deliveries, and reducing errors by half.
2017
2017
Angular Developer, Lucax, Brasília
Lucax is a company that provides its own ERP for retail reaching hundreds of customers. Have been responsible for structuring front end to rewrite the legacy system.
- I developed 10 libraries, 2 Angular templates;
- I Worked with Product Team to understand requirements and business specifications, and avoid rework finding problemas in early stage, reaching a validated software on deadlines always from 1 day to 1 week earlyer;
- I implemented an Angular abstraction to dynamicaly build Tables and Forms by providing like JSON syntax, making all forms be compatible with tables, and popup, to improve user experience, and up to 10x faster implementations;
- Also implemented an abstraction layer to data flow, to mainten full customization and make deliveries 30% faster with a smaller team.
2016
❤️
Fell in love with Typescript & Angular
Typescript+Angular incorporates a new type of paradigm into web development, making it possible to create more robust and fault-tolerant software.
2012
2012
Fullstack Developer, Instabuy, Brasília
Instabuy is an ecommerce company for supermarkets. I was a founding partner until purchased in 2016.
- I collected feedback from clients to identify business requirements, and implement on weekly basis;
- I created a module in Angular to connect to the backend, and support any customization;
- I was responsible to make templates and customize themes to clients;
- Worked to solve complex problems using the latest in Cloud, Mobile, and Web Technologies. Using AWS, and self services;
- Using Redis, implemented a Python queue management, to process async tasks, and not overload the main server.
Since 2007
2007
Design & Frontend, Student & Freelancer, Brasília
"The journey of a thousand miles begins with a single step."
And Always
♾️
Explorer/Curious/Inventive Developer, at Brasília
- I explore new technologies and frameworks, testing innovative solutions to improve performance and user experience;
- I investigate complex problems with curiosity, analyzing logs, metrics, and system behaviors to propose effective fixes;
- I propose continuous improvements, suggesting new approaches and experiments that optimize development and business processes;
- I explore integrations between different systems, seeking creative ways to expand the ecosystem of solutions;
- I apply critical thinking to compare alternatives, balancing innovation with technical and business feasibility, contributing creative insights to product evolution.