Experience and selected projects

Professional experience

1. Sep 2026 – Present

   Argentina · Remote

   AI EngineerRampy

   AI engineering in a fintech context.

   • Set up an agentic engineering workspace that preserves context and enables coordinated parallel work.

   Recently started. Only work that is finished and cleared for publication appears here.

   • Applied AI
   • Agentic systems

2. Dec 2025 – Aug 2026

   Argentina · Remote

   Software EngineerTeamcubation

   The promotions platform for Payway, a leading Latin American fintech, serving an ecosystem of 350,000+ merchants, 70+ card issuers and 13 countries.

   • Delivered the promotions experience end to end: a Single-SPA React and TypeScript microfrontend embedded as a native section of the merchant portal, connected through a Spring WebFlux BFF to multiple microservices and providers.
   • Used Amazon API Gateway to bridge the HTTPS merchant portal with internal HTTP enterprise services, keeping the integration secure from the application side.
   • Built Java/Spring Boot and TypeScript/Node.js/NestJS microservices to ingest, normalise and process promotions from merchants, financial entities and providers, adapting contracts per integration.
   • Implemented an event-driven, serverless flow with Amazon S3, SQS and a Python/FastAPI Lambda using ordered processing strategies.
   • Designed an in-product RAG and agentic assistant for merchant owners with Python, LangChain, LangGraph, PostgreSQL/pgvector and guardrails, retrieving the banking promotions tied to each merchant to ground the model's answers.
   • Built Python and Node.js tooling to replay bulk loads safely against isolated local databases, reconcile results and surface failed promotions and edge cases before release.

   • 20M+

     promotions loaded

     The complete historical load, executed in production, followed by thousands of new promotions daily.

   • ~90,000/s

     peak throughput

     Measured during production execution with real data across the full 20M+ load.

   • Zero

     data loss

     Validated across that same complete production load.

   A key engineering team member with substantial ownership of these components, not their sole author. Worked on containerised services in Docker and Kubernetes environments as a developer — configuration, observability and diagnosis — not as cluster administrator or infrastructure owner.

   • Java
   • Spring Boot
   • Spring WebFlux
   • TypeScript
   • Node.js
   • NestJS
   • Python
   • FastAPI
   • React
   • Single-SPA
   • PostgreSQL
   • pgvector
   • LangChain
   • LangGraph
   • AWS Lambda
   • Amazon API Gateway
   • Amazon S3
   • Amazon SQS
   • Docker
   • Kubernetes
   • OpenTelemetry
   • GitLab CI/CD

3. Jan 2024 – Present

   Argentina · Remote

   AI Engineer & Full-Stack DeveloperSelf-employed

   Independent product engineering for e-commerce, social media and digital-product clients. Projects are occasional rather than continuous.

   • Designed and shipped digital products, back offices and stock and point-of-sale extensions, connecting commercial needs to maintainable systems.
   • Built MCP-, Claude- and LLM-powered pipelines and agents that research, generate and publish content end to end.
   • Developed online stores, WordPress solutions, APIs and custom full-stack integrations, with Python and Node.js tooling for automation, bulk processing and data analysis under spec-driven development.

   • USD 10,000+

     cumulative client profit

     Profit generated for clients by the products delivered — not personal revenue.

   • ≥70%

     operating-cost reduction

     Estimated by the clients themselves. Not an audited financial measurement.

   Client count and client names are not published, because that history was never reconstructed precisely enough to state.

   • Python
   • Node.js
   • TypeScript
   • Claude API
   • Model Context Protocol
   • REST APIs
   • WordPress

4. Dec 2024 – Dec 2025

   Bahía Blanca, Argentina · On-site

   Software EngineerCooperativa Obrera

   SGA, a secure enterprise back office for administering sensitive data, permissions and auditing at Argentina's largest consumer cooperative: 150+ branches, 2.7M+ members and an ecosystem of 50+ internal systems.

   • Held a principal design, architecture and implementation role with product-engineering scope.
   • Built a responsive Next.js and TypeScript frontend whose only interface was a Python/FastAPI BFF, which defined the shared contract and decoupled the web experience from every downstream service.
   • Personally integrated the 10+ systems within SGA's scope through Java/Spring Boot or TypeScript/Node.js/NestJS microservices, each conforming to that contract and encapsulating its own internal logic; legacy PHP applications were brought in through dedicated integrations.
   • Standardised onboarding for new systems with reusable structures and filters.
   • Automated bulk loads and data validation with Python, and implemented LDAP authentication and a complete audit trail with exportable reports.

   • 10+

     systems integrated

     Every system within SGA's scope, integrated personally, inside an ecosystem of 50+.

   • ≥80%

     fewer permission tickets

     Compared against tickets and logs before and after standardised onboarding; ≥95% of recurring assignment bugs eliminated.

   • 10 min → <10 s

     permission search

     Through SQL tuning, indexing and pagination. Critical endpoints stayed below 300 ms on average in qualified, repeatable tests on on-premise enterprise servers.

   No public links exist: SGA administers back offices, personal data and internal company processes.

   • Python
   • FastAPI
   • Next.js
   • React
   • TypeScript
   • Java
   • Spring Boot
   • Node.js
   • NestJS
   • SQL
   • Docker
   • LDAP
   • Prometheus
   • Grafana
   • GitLab CI/CD