Sebastián Ojeda
ES

FULL-STACK SOFTWARE DEVELOPER · BACKEND-ORIENTED

FULL-STACKSOFTWAREDEVELOPER

I turn operational workflows into reliable software across backend, data, integrations and interfaces.

Mendoza, Argentina · Remote-first

View selected workDownload resume
GitHub ↗

SELECTED WORK

Systems built around real operational constraints.

Three backend-oriented cases showing ownership, architecture and available evidence.

  1. 01

    HMS Cloudflare

    Brownfield operational SaaS migrationRust/PostgreSQL → Workers/D1 with tenant isolation, browser validation and verifiable recovery.View case study
    HMS Cloudflare integrated housekeeping workflow captured by Playwright.
    Local regression evidence of the housekeeping workspace on the Cloudflare-migrated runtime.
  2. 02

    Alquileres Uspallata

    Vacation-rental catalog and operationsFull-stack publication workflow with server-side authority, availability freshness and auditability.View case study
  3. 03

    AI Commerce + HMS

    Governed AI over real operationsLLM tool calling with policies, HITL, idempotency and audit — the model never becomes operational authority.View case study

HOW I WORK

Understand the system. Build end-to-end. Verify the boundaries.

  1. 01

    Understand systems

    I map actors, states, constraints, authority and failure paths before treating the UI or API as the whole problem.

  2. 02

    Build end-to-end

    I connect backend services, data, integrations and interfaces with architecture proportional to the problem.

  3. 03

    Verify boundaries

    I use tests, browser validation, security checks and operational evidence to distinguish technical PASS from product or release claims.

My background in support, infrastructure, SAP and integrations keeps this work grounded in real operational processes.

A little about me

I live in Uspallata, Mendoza. Before focusing on software development I worked across support, infrastructure, SAP and integrations, which taught me to see software inside real processes rather than as isolated pieces.

I am driven by difficult problems and new domains. Away from the screen I run, hike and spend time in the mountains; living in Uspallata keeps that contrast close.

ADDITIONAL WORK

More projects

  1. 04
    UspaYaMulti-actor transactional last-mile system
    Vertical closed; pre-pilot hardening
  2. 05
    GasFlowMobile application for distribution operations
    Functional MVP
  3. 06
    Agentic Engineering GovernanceDICS + Project Integrity Kernel
    Experimental prototypes under validation
  4. 07
    HMS EliteHotel management SaaS platform
    Active development
  5. 08
    JM Soluciones EléctricasCommercial website for electrical services
    Release-ready
  6. 09
    Taco Loco FoodtrackDigital menu and order management
    Functional MVP

Contact

Open to Full-Stack and Backend opportunities.

Remote-first from Mendoza, Argentina. Hybrid, on-site and relocation can be considered for the right opportunity.

Intermediate English, actively improving through professional practice.

sebastian.ojeda.dev@gmail.com

Send email
Download resumeView GitHub