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Beatriz User

@beatrizuser

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I build auditable backend platforms and safe LLM agent workflows for complex, multi-tenant systems.

Poland

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What I'm looking for

I'm looking to build safe, auditable backend platforms and LLM agent systems, turning ambiguous requirements into extensible workflows with measurable client outcomes.

At Bloombert, I architect customer-extensible supply-chain data models and supervised LLM automations with policy checks, audit logging, sandboxed tools, and Temporal workflows. I reduced permission-related incidents from 12 to 2 per month and agent-failure MTTR from 95 to 28 minutes.

Across PwC, Globant, and Hyland, I’ve built production data platforms, APIs, ETL pipelines, and workflow systems in Python, Java, PostgreSQL, Kafka, and cloud infrastructure. I turn ambiguous requirements into safe, measurable systems through strong schemas, permissions, testing, observability, and mentoring.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Bloombert

Jan 2023 - Present (3 years 8 months)

Architected customer-extensible data models and row-level permissions in PostgreSQL, reducing permission-related incidents from 12/month to 2/month. Built agent supervision frameworks and led production rollout of LLM-powered automations with cost controls and eval pipelines.

Python PydanticAI Temporal PostgreSQL Redis Docker Kubernetes OpenAI Claude fastAPI LLM LLM AI Agent Frameworks Evaluation Pipelines Cost Control Row level security Schema Design Incident Response

Senior Data Engineer

PwC

Jan 2020 - Jan 2023 (3 years)

Owned design and evolution of relational schemas for client data warehouses, standardizing constraints and permission models. Built ETL pipelines and CDC flows moving 40M records/day with sub-5-minute freshness, and shipped Python services wrapping third-party LLM SDKs with retry and cost-limiting logic.

Python PostgreSQL Airflow Kafka Redis OpenAI Docker GCP Pytest Pandas ETL CDC Schema Design LLM Cost Optimization Test Driven Development Load Testing

Senior Software Engineer

Globant

Jan 2017 - Jan 2020 (3 years)

Designed microservices and relational schemas for multi-tenant customer flows, implementing REST and GraphQL APIs in Java and Node.js. Led migration to normalized PostgreSQL schemas improving query performance by 3x and developed CI/CD pipelines and contract tests reducing staging-to-prod incidents by 40%.

Java NodeJS PostgreSQL Celery Kafka Docker REST GraphQL Terraform Prometheus Microservices CI CD Contract Testing Observability

Software Engineer

Hyland

Jan 2014 - Jan 2017 (3 years)

Implemented core backend features in Java for document and workflow systems, focusing on reliable write paths and schema-backed validation. Optimized SQL queries and indexing strategies, improving report generation time from minutes to under 30 seconds.