Mauricio Vieira

Mauricio Vieira

Mentor
Rising Codementor
US$8.00
For every 15 mins
ABOUT ME
Senior Ruby/Python Sofware Engineer
Senior Ruby/Python Sofware Engineer

A highly driven and successful Senior Software Development Engineer with a passion for delivering exceptional results in a diverse range of industries.

Full lifecycle solutions including design, development, implementation and testing of back-end, front-end, system architecture and next generation applications.

Thriving under pressure and managing complex projects with enthusiasm and creativity.

An excellent communicator, engaging stakeholders and a proven ability to lead multidiscipline teams.

A true problem solver with excellent attention to detail and the ability to manage a large workload of diverse activities.

Fluent in English and Portuguese with Intermediate Spanish, passionate about technology and partnering with clients across continents.

A dedicated project leader, managing budgets and deadlines, inspiring colleagues and providing coaching to junior team members.

Certified Scrum Master and Certified Scrum Product Owner.

Deep understanding of business with commercial awareness, transforming strong business requirements to winning software solutions.

Portuguese, English
Brasilia (-03:00)
Joined March 2020
EXPERTISE
10 years experience
10 years experience
9 years experience
10 years experience
10 years experience
10 years experience
9 years experience

REVIEWS FROM CLIENTS

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SOCIAL PRESENCE
GitHub
awesome-challenges
A curated list of algorithmic challenges websites.
83
7
PHPTestFest
PHP Test Fest
4
5
EMPLOYMENTS
Principal Software Engineer & Consultant | Building Al-Powered, Omnicode Solutions. Self-employed (Remote)
Omnicode Solutions
2019-04-01-Present

• I founded Omnicode Solutions in 2015 with a business partner and am now the sole proprietor.
• Through my consultancy business, ...

• I founded Omnicode Solutions in 2015 with a business partner and am now the sole proprietor.
• Through my consultancy business, I partner with clients from diverse industries globally, providing creative software development services.
• Managing a junior developer on projects such as coding and bespoke client solutions.
• Successfully delivered consultancy projects to clients including Mundus-PSI, RDX.net, Juspredict, PayCertify, Bairesdev and Willdom.
• Delivered an ISP management dashboard for a client in Finland.
• Delivered a calendar application solution for clinics in Brazil.
• Supporting Juspredict.com (a legal tech startup) with company culture and MVP (Minimum Viable Product) planning. This involved collaborating with senior stakeholders such as the CTO to establish the company software development process.

PHP
Python
Android
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PHP
Python
Android
C#
Ruby on Rails
Django
Node.js
Git
Angular
Meteor
Heroku
GitHub
Laravel
TypeScript
Jira
Ansible
Shopify
Docker
React
Confluence
JavaScript
Kubernetes
React Native
Web Audio API
GraphQL
Next.js
CI/CD
RESTful API
Fastapi
Supabase
LLM
React (next.js)
Ai automation
Ai & llm integration
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Senior Software Engineer
DAWN Internet (https://dawninternet.com)
2025-01-01-2026-05-01

Engineering on the decentralized ISP operating stack at DAWN Internet, a spin-off of Andrena, spanning customer dashboard, shared UI, ...

Engineering on the decentralized ISP operating stack at DAWN Internet, a spin-off of Andrena, spanning customer dashboard, shared UI, Deployer OSS/BSS, APIs, workers and headless commerce.

Built and shipped customer-facing features on dashboard.dawninternet.com, including login via Extension API, account recovery and referrals & rewards UX wired to API-backed earnings and time-series charts.

Designed API endpoints and SQL aggregations powering pings visualizations end-to-end across API and dashboard.

Implemented epoch-aware reward logic and validator-side fixes/tests to keep reward points and time-series charts accurate across weekly intervals.

Built the storefront from scratch on Shopify Hydrogen (React) hosted on Oxygen, using the Storefront API (GraphQL) for catalog, cart and checkout - owning app structure, data fetching and integration patterns.

Delivered coupon, referral and reward features across storefront and dashboard, including operator-configurable percent or dollar discounts for both referrer and referral on the Beta operator stack.

Hardened OpenWiFi/Nautobot provisioning with validation, logging, retries and incident fixes, increasing provisioning reliability.

Executed email delivery transition from Andrena SendGrid to DAWN SendGrid for Beta communications continuity.

Node.js
PostgreSQL
TypeScript
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Node.js
PostgreSQL
TypeScript
Shopify
React
Rust
Kubernetes
GraphQL
GitHub Actions
Vite
LLM
Ai agent
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Senior Software Engineer
Andrena (https://andrena.com)
2023-07-01-2026-05-01

Led modernization of the andrena.com platform, delivering architectural changes across billing, onboarding, and provisioning.

Im...

Led modernization of the andrena.com platform, delivering architectural changes across billing, onboarding, and provisioning.

Implemented admin and customer two-factor authentication aligned with SOC2 readiness.

Migrated CI/CD from GitLab to GitHub Actions while upgrading Django, Stripe and Nautobot integrations.

Automated Stripe billing flows, SMS notifications and appointment reminders to reduce manual operations.

Designed building/unit data models and migration tooling enabling new provisioning workflows.

Delivered property manager invite and promo reward capabilities that improved sales and retention programs.

Python
Django
PostgreSQL
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Python
Django
PostgreSQL
Stripe
RESTful API
AWS
LLM
Ai automation
Ai agent
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PROJECTS
Decentralized ISP Dashboard & Commerce PlatformView Project
2025
Engineering on the decentralized ISP operating stack at DAWN Internet, a spin-off of Andrena, spanning customer dashboard, shared UI, Dep...
Engineering on the decentralized ISP operating stack at DAWN Internet, a spin-off of Andrena, spanning customer dashboard, shared UI, Deployer OSS/​BSS, APIs, workers, and headless commerce. Built and shipped customer-facing features on dashboard.dawninternet.com⁠ , including login via Extension API, account recovery, and referrals & rewards UX wired to API-backed earnings and time-series charts. Designed API endpoints and SQL aggregations powering pings visualizations end-toend across API and dashboard. Implemented epoch-aware reward logic and validator-side fixes/​tests to keep reward points and time-series charts accurate across weekly intervals. Built the storefront from scratch on Shopify Hydrogen (React) hosted on Oxygen, using the Storefront API (GraphQL) for catalog, cart, and checkout owning app structure, data fetching, and integration patterns. Delivered coupon, referral, and reward features across storefront and dashboard, including operator-configurable percent or dollar discounts for both referrer and referral on the Beta operator stack. Hardened OpenWiFi/​Nautobot provisioning with validation, logging, retries, and incident fixes, increasing provisioning reliability. Executed email delivery transition from Andrena SendGrid to DAWN SendGrid for Beta communications continuity.
Node.js
PostgreSQL
TypeScript
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Node.js
PostgreSQL
TypeScript
Shopify
React
Rust
Kubernetes
GraphQL
Vite
View more
ISP Operations & Customer Management PlatformView Project
2023
Led modernization of the andrena.com⁠ platform, delivering architectural changes across billing, onboarding, and provisioning. Implemente...
Led modernization of the andrena.com⁠ platform, delivering architectural changes across billing, onboarding, and provisioning. Implemented admin and customer two-factor authentication aligned with SOC2 readiness. Migrated CI/​CD from GitLab to GitHub Actions while upgrading Django, Stripe, and Nautobot integrations. Automated Stripe billing flows, SMS notifications, and appointment reminders to reduce manual operations. Designed building/​unit data models and migration tooling enabling new provisioning workflows. Delivered property manager invite and promo reward capabilities that improved sales and retention programs.
Python
Django
PostgreSQL
View more
Python
Django
PostgreSQL
Docker
React
Stripe api
CI/CD
GitHub Actions
View more