JcDev Solutions

Full-stack engineering · since 2015

Full-stack engineering for ambitious teams.

Web apps, mobile apps, and AI integration — from a senior engineer with 11 years shipping production across the stack.

11+
years shipping production
30+
shipped projects
4
platforms: web, iOS, Android, AI
EN · ES
bilingual, native in Spanish

Selected work

Where the last decade went.

Open-source infrastructure project (anonymized)

Architecting an open-source observability tool

Led the v1.0 architecture for an open-source observability tool. Three releases to 8k GitHub stars; design adopted by two major cloud providers' reference deployments.

GitHub stars
8.2k
Time to v1.0
9 months
Contributors
47
P99 ingestion latency
<8ms
  • Rust
  • Apache Arrow
  • gRPC
  • OpenTelemetry
  • Kubernetes

Series B SaaS DevOps company (anonymized)

Building a multi-tenant CI/CD platform from scratch

Designed and shipped the first version of their multi-tenant CI/CD platform in 14 weeks. Pipeline median runtime went from 45 minutes to 4 minutes.

Pipeline median runtime
45m → 4m
Concurrent builds supported
12 → 400+
Time to first green build
8 weeks
Beta cohort churn
-60%
  • Kubernetes
  • BuildKit
  • PostgreSQL
  • NATS
  • Go

Replaced a fragile nightly batch with a real-time double-entry ledger, cutting reconciliation time by 70% and saving $8k/mo in ops overhead.

Reconciliation time
-70%
Monthly cost saved
$8k
P99 ledger query latency
42ms
On-call pages
-92%
  • PostgreSQL
  • Go
  • Kafka
  • Temporal
  • TimescaleDB

How I engage

Four ways to start. One conversation to figure out which.

Full-Stack Web Apps

Project-based

End-to-end web application development in Next.js, Angular, or React — paired with .NET Core or Node.js backends.

By quote

4-week minimum

Discuss

AI-Powered App Development

Project-based

Web and mobile applications with AI features built in: chat interfaces, document analysis, prompt orchestration, model evaluation, and the deployment plumbing underneath.

By quote

2-week minimum

Discuss

Cross-Platform Mobile Apps

Project-based

Cross-platform mobile apps in React Native for iOS and Android — one codebase, two stores, native-feeling UX.

By quote

6-week minimum

Discuss

Legacy Modernization

Fixed scope

Refactor and migrate older .NET, VB.NET, and JavaScript codebases to .NET 8, modern Angular or Next.js, and current CI/CD.

By quote

By scope

Discuss

Have a problem worth solving?

Book a 30-minute discovery call. No prep needed — just an honest conversation about what you're working on.

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