Roland Aroche · Software developer & founder of Logic Bit · Miami, FLSoftware that works for you.

AI, automation, integrations, and websites that save your team time every day.

Projects

Things I built and shipped.

Open source · Apache-2.0

NetPdf

An HTML and CSS to PDF rendering engine, written in pure C#. No browser, no Chromium subprocess. It parses the page, runs its own layout engine, and writes the PDF directly.

Block, inline, flexbox, grid, and table layout
Paged media: @page, running headers, page counters
HarfBuzz text shaping, including right-to-left and CJK
Deterministic: the same input gives a byte-identical PDF
Native AOT compatible

3-page invoice: ≤ 200 ms
Runtime: .NET 10
Install: dotnet add package NetPdf

View on GitHub Read the docs

invoice.html

<style>
  @page { size: A4; margin: 18mm;
    @bottom-right { content: "Page " counter(page) } }
  .head  { display: flex }
  .items { display: grid;
           grid-template-columns: 1fr auto }
</style>
<header class="head">…</header>
<section class="items">…</section>

ParseStyleLayoutPaginateWrite PDF

Production web app

Card Benefit Hub

Premium credit cards come with credits and perks that quietly expire. Card Benefit Hub tracks them for you, so you use them before they are gone.

Dashboard sorted by how soon each benefit expires
Weekly email reminders and one-click “redeemed”
Elite status tracking for hotels, airlines, and rental cars
AI-powered search for new promotions every two weeks

Premium cards: 13+
Benefits tracked: 289+

Visit cardbenefithub.com

My company

Logic Bit

Custom software. Seamless integrations. Practical AI.

I founded Logic Bit to be a senior engineering partner for growing businesses, without the agency overhead. You work with the engineer who writes the code, and you own 100% of it.

Clients include

Accenture
Ryder
ANDMORE
Five Oceans
Makai Digital
Countable
Wilqo

Visit logicbit.tech

More projects

Websites, web apps, and dashboards.

BookItAI appointment booking
Lux ABATherapy clinic website
Mortgage pipelineLoan application dashboard
CurioZooLearning games for kids
Leadership Learning CenterEducation nonprofit website
Trading deskReal-time trading dashboard
Twin BrothersBilingual community site
Integration hubData sync across 6 platforms
Apex Clinical StudiesPatient recruitment site
Document AIInvoice extraction and review
Lumix ConstructionContractor website
Fleet operationsLive delivery tracking

BookItAI appointment booking
Lux ABATherapy clinic website
Mortgage pipelineLoan application dashboard
CurioZooLearning games for kids
Leadership Learning CenterEducation nonprofit website
Trading deskReal-time trading dashboard
Twin BrothersBilingual community site
Integration hubData sync across 6 platforms
Apex Clinical StudiesPatient recruitment site
Document AIInvoice extraction and review
Lumix ConstructionContractor website
Fleet operationsLive delivery tracking

Want the full picture?

Request the full project list Request my resume

Services

What I can build for you.

AI implementation
Put AI to work inside the tools your team already uses. Document processing, support assistants, search over your own data, and agents that take real actions, with guardrails and results you can measure.
- Claude & OpenAI
- RAG
- AI agents
- Evaluation
Automation
Find the hours your team loses to copy and paste, and replace them with workflows that run on their own. Order routing, reports, data entry, and alerts.
- Workflows
- Scheduled jobs
- Azure Functions
- Reporting
Software integration
Connect the systems that do not talk to each other. ERPs, CRMs, e-commerce platforms, marketplaces, and payment providers, kept in sync through APIs.
- REST & webhooks
- Marketplaces
- ERP & CRM
- Data sync
Website development
Fast, secure, accessible websites that are easy to update. From a focused marketing site to a full e-commerce storefront.
- Astro
- Next.js
- Shopify
- SEO & performance
Custom software
Web apps, internal tools, and backend services built around how your business actually works, not around a template.
- .NET
- Node.js
- React
- SQL
Modernization
Move legacy systems forward without stopping the business. Cloud migrations, careful refactors, and a second opinion on architecture.
- Azure
- Migrations
- Architecture review
- Ongoing support

Roland Aroche in front of the Miami skyline — Miami, FL

About

I build the parts that keep a business running.

I am a software engineer in Miami and the founder of Logic Bit. I started in e-commerce: Shopify storefronts, integrations with Amazon, Walmart, and eBay, and the internal tools that kept orders moving.

Today I help companies connect their systems, automate the manual work, and put AI into production where it pays off. In my own time I build things like NetPdf, a PDF engine written from scratch in C#.

Based in: Miami, FL
Languages: English, Spanish
Education: B.S. Computer Science, FIU
Company: Logic Bit

Tools I use

Languages: C#
TypeScript
JavaScript
Python
Java
SQL
HTML & CSS
Frameworks: .NET / ASP.NET Core
Node.js
React
Next.js
Astro
Spring Boot
Tailwind CSS
AI & LLMs: Claude
OpenAI GPT
Azure OpenAI
RAG
AI agents
MCP
Vector search
Prompt engineering
Databases: PostgreSQL
SQL Server / Azure SQL
MySQL
MongoDB
Redis
DynamoDB
Cosmos DB
Cloud & DevOps: AWS
Azure
Terraform
Docker
GitHub Actions
CI/CD
Netlify
Platforms & tools: GitHub
VS Code
Salesforce
HubSpot
Shopify
Amazon, Walmart & eBay APIs
Postman

Contact

Roland Aroche · Software developer & founder of Logic Bit · Miami, FLSoftware that works for you.Software that works for you.

NetPdf

Card Benefit Hub

Logic Bit

AI implementation

Automation

Software integration

Website development

Custom software

Modernization

I build the parts that keep a business running.

Tools I use

Let’s build it.

Roland Aroche · Software developer & founder of Logic Bit · Miami, FLSoftware that works for you.