Open to opportunities

Maria J User

@mariajuser

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Senior AI Engineer delivering enterprise Voice AI, LLM infrastructure, and reliable full-stack platforms.

Poland

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What I'm looking for

I’m looking for an engineering role where I can build and scale production conversational/voice AI systems, strengthen AI inference and workflow orchestration, and improve reliability through observability, incident response, and pragmatic system design for enterprise users.

I’m a Senior Full Stack & AI Engineer with 7+ years delivering enterprise software platforms, AI infrastructure, and production conversational AI systems. I’ve worked across product, platform, infrastructure, and customer-facing engineering teams, supporting thousands of enterprise users, millions of records, and large-scale AI workloads.

In my recent role, I led workflow orchestration for an enterprise Voice AI platform—handling more than 100,000 customer conversations per month—by building idempotency, retry, and failure-recovery mechanisms that reduced integration failures by ~35%. I also improve observability and reduce operational friction, including faster issue detection (~50%), and I’ve contributed to reliability and scalability initiatives across AI inference and enterprise modernization work.

Experience

Work history, roles, and key accomplishments

Senior AI Engineer

Synthflow AI

Jul 2024 - Mar 2026 (1 year 8 months)

Contributed to Synthflow’s enterprise Voice AI platform automating customer service, appointment scheduling, lead qualification, and operational workflows. Built and improved workflow orchestration and execution services for large-scale voice conversation processing, driving reliability and faster diagnostics during production incidents.

Voice AI Conversational AI Workflow Orchestration Operational Workflow Execution CRM Integration Retry Strategies Failure Recovery Monitoring Observability Incident Response System Reliability

AI Engineer

Hugging Face

May 2021 - Jun 2024 (3 years 1 month)

Contributed to Hugging Face’s Inference Endpoints platform for deploying and operating machine learning models using dedicated cloud infrastructure. Supported large-scale model deployments, improved deployment automation and diagnostics, and strengthened enterprise governance, workload isolation, observability, and troubleshooting.

Model Serving Validation Governance Observability Troubleshooting Reliability Engineering Enterprise Onboarding

Full Stack Software Engineer

Brainhub

Aug 2019 - Mar 2021 (1 year 7 months)

Worked on a large-scale enterprise tax compliance and reporting platform used by multinational organizations across 40+ countries. Delivered frontend and backend features for tax reporting workflows and compliance operations, including ingestion/validation pipelines, multi-tenant secure data isolation, and modernization of legacy Oracle-based functionality.

Tax Compliance Document Management Regulatory Submissions Data Isolation System Modernization