Freelance · Full stack

I build systems that still work on Monday morning

Integrations, automation, observability, and pragmatic AI—outcomes first, technical detail when you need it.

Senior full stack developer based in Medellín. I help teams close the gap between a pilot and a process people actually run every day.

Former Perficient consultant. Production schedules and on-call reality—not slide decks.

Start a conversationSee my work

@nietoga · [TBD] — selective freelance projects, remote-first

Proof points

~4h → 0

Manual reporting

Healthcare compliance—automated daily delivery

3× daily

Reliable cadence

Runs on a clock, not someone’s calendar

Peak week

Commerce in production

Checkout stable through the highest traffic window

Featured work

Healthcare — Four hours a day, gone.

Daily compliance reporting without the daily grind

The manual reporting burden dropped to effectively zero. The organization gained a predictable rhythm and clearer operational signals because the report now ran on a clock—not on someone’s calendar.

~4h → 0

Manual reporting / day

3×

Automated runs / day

100%

On-schedule delivery

Full case study →

Selected work

View all work →
Client work2024
Healthcare compliance reporting

Daily reporting burden reduced from hours to a dependable automated cadence

~4h → 0

Manual reporting / day

3×

Automated runs / day

Node.jsTypeScriptSchedulingSQL
Client work2024
Distribution order visibility

Customer-facing status timelines aligned across teams—fewer “unknown” escalations

↓

Unknown-status escalations

↑

First-contact resolution

IntegrationsWorkflow mappingInternal tools
Client work2024
Retail peak-week checkout

Checkout stayed stable through the highest traffic window of the year

Peak

Traffic window held

↓

Checkout-related tickets

Next.jsPerformanceE-commerce
In production2026
This portfolio

Bilingual personal site with SSR, i18n, and a contact pipeline—built to ship and iterate

Next.jsTypeScriptTailwindnext-intl

What I help with

See expertise →
Integrations & reliable workflows

Connect systems, replace brittle glue, and move critical data with clear ownership and retries.

Automation & reporting

Turn recurring manual work into jobs that run on a clock—with visibility when they do not.

Observability & incident response

Shorten time-to-diagnose with signals that match how your team actually works on-call.

Reliability & scale

Keep hot paths responsive under load with targeted fixes ranked by customer impact.

Writing

Notes on what I ship and how I build it.

View all posts →
Coming soon
Type-safe environment configuration for Next.js

Separate server and client env objects, validate at build time with Zod, and guard against leaking secrets into the bundle.

Next.jsTypeScriptZod
Coming soon
Integration patterns that survive production

Retries, idempotency, and ownership boundaries when vendors, legacy apps, and spreadsheets all need to agree.

IntegrationsNode.jsArchitecture
Coming soon
Observability when “we have logs” is not enough

Signals, runbooks, and escalation paths that match how teams actually respond—not dashboard theater.

ObservabilityOn-callLLMOps

About me

Enterprise delivery habits, commerce and platform experience, and a bias for small milestones with honest tradeoffs.

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Have a production problem?

Tell me what is slow, manual, or fragile. I will reply with a clear next step—usually a short call to confirm fit.

Get in touch