BM/26
ESLet’s talk
Open to remote contractor roles · Full US-hours overlap

I turn complex business requirements into software teams can ship.

SAP Technical Consultant and full-stack engineer. I work directly with clients, turn ambiguity into architecture, and stay through implementation and delivery.

See selected workSolutions CV
Billy Martínez with Oliver outdoors in Temuco
Billy Martínez Temuco, CL
Solution discoverySAP BTPFull-stack deliveryCloud decisionsClient communication
2025—nowSAP Consultant at BeCloud
End to endDiscovery → architecture → delivery
B2 EnglishFull overlap with US working hours

01 / Selected work

Evidence over buzzwords.

The strongest work is often private. These cases explain the problem, my ownership, and the technical judgment without exposing client information or inventing impact.

01Current role · BeCloud

SAP solution delivery

From a client conversation to a working SAP solution.

My contract says SAP Consultant. In practice, I work across solution architecture and full-stack delivery: requirements, interface, domain model, integration, deployment, and environment troubleshooting.

  • Run discovery with clients and translate needs into technical work
  • Design and build across SAP BTP, Fiori, CAP/CDS and Work Zone
  • Work with HANA, Joule, integrations and distributed deployments
  • SAP BTP
  • Fiori
  • CAP / CDS
  • Work Zone
  • HANA
  • Joule
Confidential client work
02Architecture decision · In progress

Confidential cloud platform

Changing the foundation when the economics stop making sense.

I evaluated the cost and technical fit of an existing AWS direction, proposed a clean re-platform to Google Cloud, and built enough alignment to restart on a foundation better suited to the product and team.

  • Compared cloud economics and operational tradeoffs
  • Recommended AWS → Google Cloud and defended the decision
  • Aligned stakeholders around “start again, but start well”
  • AWS → GCP
  • Cost architecture
  • Technical strategy
  • Stakeholder alignment
Anonymized · Work in progress
03Independent product · Private repository

Clinipets

A veterinary platform designed for real operational constraints.

A B2B2C system connecting clinics, veterinary teams, tutors, and pets. I own the product and architecture end to end—from tenant boundaries and clinical integrity to mobile/web delivery and infrastructure.

  • Conflict-safe scheduling and clinic-scoped roles
  • Versioned clinical records, signatures, and auditable addenda
  • Signed idempotent payments, private-file quarantine, and outbox notifications
View simplified system map

Clinipets public architecture map

Clients
  • KMP mobile
  • Next.js web
Domain API
  • Kotlin / Spring
  • Multi-tenant boundaries
  • Clinic-scoped roles
Data & services
  • PostgreSQL
  • R2
  • Idempotent payments
  • Outbox notifications
Cross-cutting trust
  • Audit trail
  • Versioned clinical records
  • Clinical integrity
  • Kotlin / Spring
  • KMP
  • Next.js
  • PostgreSQL
  • R2
  • Docker
Selected screens available in interviews
04Open project · University team

UFRO Sustentable

Turning on-campus recycling into a tested mobile experience.

Android application with clean-point maps, QR scanning, rewards, Firebase, and behavior-driven tests. The repository reports 89.23% line coverage and 77.88% branch coverage.

  • Kotlin application for a real university sustainability initiative
  • QR, location, rewards, and Firebase-backed flows
  • 83 JVM tests with documented coverage and a historical Sonar quality gate
  • Kotlin
  • Android
  • Firebase
  • BDD
  • Cucumber
View repository

02 / Experience

Technical depth that still works in the client room.

I am most useful at the boundary between business, product, and engineering: clarifying the real problem, choosing a defensible approach, and helping deliver it.

Jan 2025 — Present

BeCloud Consulting

SAP Consultant · Solution architecture & full-stack delivery

Client discovery, solution design, implementation, integration, and platform operations across the SAP BTP ecosystem.

Oct 2023 — Sep 2024

Happ Rent

Full-Stack Developer

Product delivery across frontend and backend in a rental-technology environment.

2020 — 2026

Universidad de La Frontera

Ingeniería Informática · Final semester

Three courses remaining. Coursework completion expected in 2026.

03 / Capabilities

Organized by responsibility, not by logo.

A

Client & solution

  • Discovery
  • Requirements translation
  • Solution design
  • Technical tradeoffs
  • Stakeholder alignment
B

SAP full stack

  • SAP BTP
  • CAP / CDS
  • Fiori
  • Work Zone
  • HANA
  • Joule
C

Product & backend

  • TypeScript / React
  • Kotlin / Spring
  • Node.js
  • REST / OpenAPI
  • PostgreSQL
  • Multi-tenant systems
D

Cloud & delivery

  • Google Cloud
  • AWS
  • Docker
  • CI/CD
  • Observability
  • Cost-aware architecture

04 / Working style

“I can join the client call—and still open the codebase afterwards.”

I have been programming long enough to know that tools change faster than fundamentals. My advantage is not memorizing one stack; it is understanding the whole system, making a clear decision, and learning whatever the delivery requires.

I am based in Temuco, Chile, available as a remote contractor with full overlap for US working hours. Spanish is native; English is B2 and operational for technical conversations.

Current focus
Solutions Engineering / Technical Consulting
Location
Temuco, Chile · Remote
Education
Ingeniería Informática · Final semester

05 / Verified learning

Cloud and data credentials.

Credentials support the work; they are not a substitute for it. Each item links to a verifiable record.

AWS / CourseraCloud Technology Consultant2024AWS / CourseraCloud Solutions Architect2024AWS AcademyMachine Learning Foundations2025GoogleAdvanced Data Analytics2024