Skip to content
yosoycheco

@yosoychecoBased in the Dominican Republic

Software Engineer & Systems Architect

6+ years building software in production — from idea to deployed, verified, backed-up systems.

Handle
@yosoycheco
Status
STATUS available
Location
Based in the Dominican Republic
Get in touchScroll to explore

SEC.01About

About

I build software products end to end — idea, design, code, deployment, QA, security and backup/DR — and I verify every step with real commands and real evidence.

I design, build and orchestrate an ecosystem of real applications running in production (personal finance, health & nutrition, cycle/wellness, notes) — each one a proof of capability, not a portfolio piece. I care about the quality the user actually perceives, and about the stability of what runs behind it.

Stability first. Evidence over claims. No shortcuts. Every change is verified before it ships — and the verification is a real command, not an assertion.

V1

Stability first — every change verified with real evidence

V2

Evidence over claims — nothing is 'done' until it is checked

V3

No shortcuts — the boring, correct path is the fast path

V4

Verification with real commands — not assumptions

Based in the Dominican Republic — open source, self-hosted mindset (no SaaS lock-in).

Obsessed with test coverage and with the quality the user perceives.

SEC.02Capabilities

Skills & Expertise

A convincing, verifiable toolbox — grouped by discipline. Nothing exaggerated.

SK-01

Full-Stack Engineering

Next.js 16, React, TypeScript, Tailwind CSS v4, shadcn/ui, Prisma ORM, PostgreSQL, API design

SK-02

Infrastructure & DevOps

Linux (Ubuntu), Docker & Docker Compose, Traefik reverse proxy, Coolify, systemd, nginx, cloud-init, DNS, SSL/Let's Encrypt

SK-03

AI & Automation

Orchestration of autonomous AI agents, LLM integration (Ollama, OpenRouter), agents exposed as API servers, OCR pipelines, AI-assisted development

SK-04

Security

Server hardening, firewall (UFW/iptables), fail2ban, secrets management (SOPS+age), pentesting playbooks (WSTG), audits, encryption in transit and at rest

SK-05

QA & Reliability

Test coverage (unit + integration + E2E), test matrices, monitoring (UptimeKuma, Netdata), observability, 3-2-1 backups with restic and disaster recovery plans

SK-06

Engineering Practices

CI/CD, git workflows, code review, testing-driven development, architecture documentation

SEC.03Method

Approach — How I Work

Six pillars that shape every project I touch.

  1. 01

    Stability first

    Every change is verified with real evidence before it ships. Stable systems beat clever ones.

  2. 02

    End-to-end delivery

    From idea to deployed system, no loose ends: code, config, documentation and recovery plans belong together.

  3. 03

    Tests before promises

    Quality gates per feature, test matrices, real coverage. If it is not tested, it is not done.

  4. 04

    Security from the design, not at the end

    Threat modeling, hardening and secrets management are part of the build, never a retrofit.

  5. 05

    Documentation & accumulated knowledge

    Architecture docs, runbooks and lessons learned — knowledge compounds when it is written down.

  6. 06

    Open source & self-hosted when viable

    Own your stack: self-host, use open tools, avoid lock-in — without dogmatism when a managed option wins on cost or reliability.

SEC.04Track record

Experience

Platforms where I participated in the development.

Platform

ServiCliNI

serviclini.com

I contributed to ServiCliNI, the flagship platform of Sofysem S.R.L. aimed at digitizing healthcare in Latin America. Built on a PHP/Apache stack with a jQuery/Bootstrap front end, it gives clinics, private practices and clinical labs an integrated suite: real-time appointment scheduling, electronic medical records, lab-result delivery and a free medical directory — priced at RD$0.00, lifetime. The platform's real differentiator is system-level interconnectivity: medical records travel across health centers, labs and practitioners, so a lab result reaches the prescribing doctor's screen the moment it's ready.

  • Real-time appointment scheduling for clinics and practices
  • Electronic medical records shared across health centers
  • Lab results delivered online and by email
  • Free medical directory for patients
  • Inventory and finance per practice

Platform

TurnoClic

turnoclic.com

I also worked on TurnoClic, a companion app in the same healthcare ecosystem that turns a phone number into a real-time queue ticket. Patients request their turn from any browser — no app, no account password — and watch their position in the waitlist update live while the front desk validates arrivals. The stack is deliberately lightweight (PHP + jQuery + Bootstrap, reCAPTCHA v3 hardened, dual Google Analytics instrumentation), which keeps it fast even on low-end mobile connections typical of clinic waiting rooms.

  • Queue tickets from any browser using only a phone number
  • Live waitlist visibility that updates in real time
  • Front desk validation and turn states
  • Lightweight stack built for low-end mobile connections

Both platforms are in production today.

SEC.05Contact

Contact

Let's build something stable, complete and verified.

Email

mcheco@proton.me
Handle
@yosoycheco
Location
Dominican Republic