Hi, I'm Richard Wollyce

A Full Stack Software Engineer who designs secure architectures and ships solutions that solve real practical problems. I build systems in production, from an ERP that handles over 200 orders a day to chat-based systems that turn conversations into clear, actionable tasks.

Let's TalkRecent Work
Richard Wollyce - Full Stack Software Engineer
ERP handling 200+ orders/day
~95% reduction in manual entry errors
Production outage restored <10 min, zero data loss

Selected Work

A curated selection of systems built to solve operational, security, and business challenges.

E-Commerce ERP

Context

MG Laser needed to replace fragile spreadsheet-based workflows with a reliable system to manage inventory, sales, and daily operations across multiple teams.

Challenge

The business ran on manual data entry across disconnected spreadsheets, causing frequent errors, data inconsistencies, and slow order processing across teams handling 200+ orders per day.

Solution & Scope

Built and maintain a full ERP system covering inventory, sales, and daily operations. Implemented structured forms with automated validation, pagination and targeted RPC calls for performance, and Row-Level Security with Role-Based Access Control for data protection.

Outcome & Impact

Reduced manual data entry errors by approximately 95%. The system processes 200+ orders per day reliably. Restored the system after a critical production outage in under 10 minutes with no data loss.

Tech Stack

TypeScriptReactViteTailwind CSSNode.jsSupabasePostgreSQLLinux VPSEasyPanel

RoadToCyberSec

Access ProjectRepository

Context

Cybersecurity learning resources are often fragmented, overly technical, or lack a clear progression path for beginners and non-technical professionals.

Challenge

Creating an accessible, structured learning path that covers fundamentals through advanced topics without overwhelming learners.

Solution & Scope

Curated and authored a structured, beginner-to-advanced cybersecurity learning path. Designed sequential modules covering fundamentals, threat analysis, password security, safe browsing, device hygiene, and incident response.

Outcome & Impact

Provides a searchable, structured cybersecurity resource hub accessible to beginners, developers, and non-technical professionals.

Tech Stack

MintlifyDocumentationContent CreationCybersecurity EducationMarkdown

Chatbot & Dashboard

Access Project

Context

As a contractor for Studio R, a tattoo and barber shop, built a structured intake flow to receive and manage service budget requests instead of unstructured WhatsApp messages.

Challenge

Client requests arrived as free-form messages with missing details, making it hard to assess scope, pricing, and follow-up status.

Solution & Scope

Built a JSON-driven guided chatbot that converts client conversations into structured tattoo and barber service budget requests. Implemented conversation flows that parse text, images, and links. Built an owner-only dashboard to review requests, manage follow-up, and track statuses.

Outcome & Impact

Replaced unstructured intake with a guided flow that captures complete budget requests. The owner dashboard provides full visibility into pending and completed requests.

Tech Stack

TypeScriptReactNext.jsViteTailwind CSSNode.jsSupabasePostgreSQLLinux VPSEasyPanel

Event Registration

Context

As a contractor for a multi-company event at Franca Shopping, built a fast, reliable client registration app usable by staff across participating businesses on event day.

Challenge

Staff needed to quickly check existing clients, register new ones, and track event participation in real-time across desktop and mobile devices with no room for downtime.

Solution & Scope

Built a client registration web app with CPF and WhatsApp lookup (~100-200ms verification), a responsive interface for desktop and mobile, and a CRUD system with day-based registration suffixes for accurate participant counting.

Outcome & Impact

Used live by staff across participating businesses on event day. Delivered end-to-end including design, development, deployment, and live event support.

Tech Stack

ReactTypeScriptViteSupabaseVercelPostgreSQL

QR Imposto

Repository

Context

Built as a contractor-led open-source mobile app to give Brazilian citizens visibility into taxes paid on everyday purchases like groceries, medicine, and fuel.

Challenge

Fiscal data from NFC-e receipts is encoded in QR codes and not easily accessible or understandable to the average consumer.

Solution & Scope

Built an open-source mobile app that lets users scan NFC-e QR codes and see a clear breakdown of taxes paid on purchases. Covers the full workflow from QR scan and fiscal data parsing to logged entries and tax breakdown summaries.

Outcome & Impact

Provides transparent tax visibility for everyday purchases. Open-source and distributed through EAS.

Tech Stack

React NativeExpoTypeScriptEAS

Experience

A history of production engineering, secure system ownership, and reliable software delivery.

Software Engineer

MG Laser

November 2025 — May 2026Franca, Brazil
  • Build and maintain an ERP system processing 200+ orders per day across multiple teams, covering inventory, sales, and daily operations.
  • Reduced manual data entry errors by ~95% by replacing spreadsheet workflows with structured forms and automated validation.
  • Secured data access with RLS and RBAC, restricting records to appropriate user roles.
  • Restored the system after a critical production outage in under 10 minutes with no data loss.

Contractor / Freelance Software Engineer

Contractor

2024 — PresentFranca, Brazil · Remote
  • Delivered client projects including 13doze (event registration app), Studio R (chatbot & dashboard), and QR Imposto (open-source mobile app).
  • Owned full lifecycle: requirements, design, development, deployment, and live event or post-launch support.
  • Implemented payment integrations, webhooks, conversational flows, and applied TDD with Vitest to reduce regressions.
  • Worked across frontend, backend, databases, and self-managed server deployments.

Technical Strength

A structured breakdown of core capabilities built across frontend, backend, data, and infrastructure.

Frontend

Building responsive, accessible interfaces with modern React patterns. From complex data tables to guided conversational flows, every UI is production-ready and performance-conscious.

Technologies & Frameworks

ReactNext.jsViteTailwind CSSThree.jsRedux

Backend

Designing APIs, authentication flows, and webhook integrations that handle real workloads. Every backend service is built for reliability and secure data handling.

Technologies & Frameworks

Node.jsREST APIsGraphQLSupabaseAuthWebhooks

Data & Security

Structuring databases with secure-by-default thinking. Row-Level Security and Role-Based Access Control are standard practice, not afterthoughts.

Technologies & Frameworks

PostgreSQLSQLRLSRBACDatabase Design

Infrastructure & Quality

Owning the full deployment pipeline from container to production. Self-managed servers, CI/CD automation, and test-driven development keep systems reliable.

Technologies & Frameworks

DockerLinux VPSNginxGitHub ActionsCI/CDVitestTDD

About Me

I'm a Full Stack Software Engineer based in São Paulo, currently pursuing a B.Sc. in Software Engineering. I take ownership from problem definition to production, building systems that remain reliable under real conditions.

I work with a secure by default mindset. Row Level Security, Role Based Access Control, and structured data access are part of every system I design. I focus on getting the architecture right early so the system can grow without accumulating fragile solutions.

My interest in technology started early. At seven years old, I had my first computer and began formal IT training. That curiosity turned into a long term commitment to building useful and scalable software.

Outside of engineering, I am a father and passionate about music. Both influence how I think and build, bringing creativity, discipline, and a strong sense of responsibility to everything I do. I learn quickly, adapt fast, and focus on delivering work that truly matters.

Let's Connect

Ready to talk systems, security, or full-stack engineering roles? Get in touch.

Email

mail@richardwollyce.com

LinkedIn

linkedin.com/in/richardwollyce-/

GitHub

github.com/richard-wollyce

Download CV

Available in PDF format