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Martín Ernesto CoronelMC
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Martín Ernesto Coronel

@martinernestocoronel

I build secure multi-tenant Java backends for distributed SaaS systems.

Argentina
Message

What I'm looking for

I'm looking to build secure, reactive Java backends for distributed and multi-tenant systems, with meaningful ownership of data isolation, authentication, secret management, reliability, and production operations.

At Ensolvers, I contributed full-stack development and production support on a Java/Spring codebase within agile sprints.

I'm building Kenoma, a modular multi-tenant B2B SaaS backend for inventory management. It uses independently scoped auth, credential orchestration, and inventory services, with per-organization data isolation through OpenBao ephemeral credentials and reactive R2DBC connection routing.

I go deep on secure service-to-service authentication, JWT signing through OpenBao Transit, Redis-based session revocation, org-scoped RBAC, and observable operations with Grafana, Loki, Prometheus, Flyway, Testcontainers, and GitHub Actions.

Experience

Work history, roles, and key accomplishments

EN

Backend Engineer

Ensolvers

Sep 2025 - Jun 2026 (9 months)

Full-stack development and production support on a Java/Spring codebase within agile sprints.

Education

Degrees, certifications, and relevant coursework

UT

Universidad Tecnológica Nacional - Venado Tuerto

Técnico Universitario en Programación, Programming

2021 - 2022

Completed a university technical degree in programming at Universidad Tecnológica Nacional in Venado Tuerto, Argentina, from 2021 to 2022.

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