Rdev·palmarP
Available

ROBERTOPALMAR/

RoleFull-stack engineer
BaseMaracaibo · VE
Experience4 years developing
Current teamBigwise Corp
LET'S TALK
FIG. 01 · ARQUITECTURA
296u260uDETAIL · 01WEBHOOK ZONE[A] · BACKEND[B] · CLIENTREQDBFCMFLUJO · 01WS · SOCKET.IO:443 · realtime · bidiDB · MONGO312 docs · v6Nmcy · 2026arquitectura
orders.controller.ts
12345678910
import { Router } from 'express' router.post('/orders', async (req, res) => { const order = await Order.create(req.body) await fcm.send(order.userId, { title: 'Nuevo pedido', body: `#${order.id} · $${order.total}` }) res.json({ ok: true })})
9:41▮▮▮▮ 92%
PEDIDOS2 NUEVAS
API · /orders
Nuevo pedido
#4231 · $42.50
FCM · push
Stock sincronizado
312 items OK
ESC.1:1

I'd rather ship backends and apps that work,
than chase perfect systems that never go live.

I design, build and maintain backends, microservices, mobile and web apps, and automations. Robust APIs, offline-first architectures, and integrations with platforms, third-party services and specialized hardware.

"When I commit to a project, I take it seriously."

In short

// what I do, how I do it
// backend
0
microservices across building and support
// mobile
0
native Android apps in production
// integrations
0
integrations with fiscal systems, payment platforms and specialized hardware
// 01 · how I build
I anticipate failure before it happens
I test the system in scenarios usually overlooked: network drops, inconsistent data, concurrency. By the time I ship, the foreseeable problems are already solved.
// 02 · order
Code that holds up over time
I work with defined plans and reviewable deliveries. The code is written to be maintained, not just to run. What I touch, I leave better.
// 03 · tools
AI as flow, not shortcut
I use AI to speed up the mechanical and focus on architecture, technical decisions and quality. The decisions are still mine.

Pro­jects

05 selected pieces

Frontend

FreelanceWeb · 2025
World Maritime Services — vista previa
World
Maritime
Next.jsLandingWeb

Corporate landing for maritime services

Institutional website for a company with over a decade in the naval sector, present in the main ports of Venezuela. Design, development and deploy delivered as freelance.

→ Solo dev · Freelance
FreelanceWeb · 2026
Agenafalca — vista previa
Agenafalca
Next.jsLandingWeb

Corporate landing for a shipping agency

Institutional website for a shipping agency operating at the ports of Falcón, Venezuela. Design, development and deploy delivered solo as freelance.

→ Solo dev · Freelance

Fullstack + Android

Co-tech leadAndroid · Retail · 2024
SLIVE14:32
VTA
RPT
INV
FAC
SLIVE POS
AndroidOffline FirstFiscalRetail

Android POS system for retail

Android point-of-sale system for retail, with offline first architecture and bidirectional sync. Co-led the project and worked on the app, operation modules and integrations with point-of-sale hardware.

→ Full-stack · Co-tech lead
Tech leadSignage · 2024
PROMO 50%
HOY
VE
19:04
@SLIVE-ADS · 12 pantallas activas · push en tiempo real ··· sync 04ms
SLIVE
ADS 360
AndroidTiempo realSignage

Digital signage platform

Content management and distribution for real-time screens. Campaign scheduling and centralized control dashboard.

→ Tech lead · Main dev

Backend

Open SourceAPI · 2024+
POST /api/orders{  "businessUnit": "bu_a7d2",  "items": [    { "sku": "BRG-21", "qty": 2 }  ]}→ 201 · multi-tenant scoped
Order
System
TypeScriptExpressMongoDBMulti-tenant

Multi-tenant backend for orders system

Backend for a restaurant orders system with a multi-tenant architecture per business unit, two-token authentication and role-based access control. Personal project under active development, designed as a complete system.

→ Backend lead · Own project
WIP

More coming

New backend project under construction

Path

// 4 years, several tracks in parallel

Since 2022 I've been working on four tracks at the same time: platform backend, Android products, freelance projects and technical decisions with the team. Each one taught me something different — and all four are still active.

202120222023202420252026
2022present· ONGOING
Track 01

Backend & microservices

Built microservices from scratch and supported platforms in production. Technical standardizations, production-oriented architecture and integrations with fiscal systems, payment platforms and external services.

2024present· ONGOING
Track 02

Android products

Tech-led two native Android products in Kotlin with Jetpack Compose, plus support for other mobile apps. Focus on operation-intensive interfaces, specialized hardware integration and real-time communication.

2021present· ONGOING
Track 03

Freelance & direct clients

Started with web gigs while finishing my degree. Now formalized as independent practice: modern web development and custom software for clients that need well-built solutions.

present· ONGOING
Track 04

Shared technical decisions

I like proposing ways to update and design flows in the systems I work on — practical solutionsthat match what's actually needed. I bring ideas, opinions and judgment to the table when there are technical decisions to make.

// EducationComputer Science Engineering

Stack

// what I use

The toolbox I open every day — organized by what each thing is for.

01

Languages

C# / .NETKotlinJavaNode.js / TypeScript
02

Frameworks & platforms

Jetpack ComposeASP.NET CoreNext.jsExpress
03

Databases

PostgreSQLMongoDBRedisModeling & management
04

Real-time & comms

WebSockets / SignalRRESTQueues & background tasks
05

Infra & practices

DockerGitCI/CD
06

Tools

AI as copilotPractical prompting
07

Domains I've built in

Payment gatewaysFiscal printersDigital invoicingPOS devicesOffline-first apps with syncReal-time systems

NOW.

// what I'm up to right now
UPDATED1 months ago
Working on
Building my freelance practice in web development and custom software. Slots open for Q2 2026.
Learning
Going deeper into automation and AI-driven workflows — how to build them without losing control over the outcome.
// off the code
Listening
loading…
Playing
loading…
Reading
Ethics for AmadorFernando Savater
updates when there's something newv.07 · 2026

Let's talk— tell me what you want to build

// quick formor fill this and I’ll reply →
© 2026 · ROBERTO PALMARBuilt in VESound