Samuel Beuran

Lead AI Engineer

Lead AI Engineer with 8+ years of experience designing, building, and scaling production-grade data and AI platforms across fintech, e-commerce, and telecom. Deep expertise in Azure-centric data and AI stacks (Databricks, Delta Lake, Azure Data Factory, Airflow, Spark/Scala, Python, SQL), combined with hands-on delivery of GenAI and agentic AI systems (RAG, LightRAG, LLMs) in regulated enterprise environments.

Proven track record delivering end-to-end AI platforms at scale, processing 5TB+ of data and supporting 2M+ transactions per day, preventing €1.2M+ in annual fraud losses and enabling customers to launch AI-driven analytics and financial services generating €1.4M+ in revenue. Designed and operated an Agentic AI Data Platform that ingests large-scale enterprise data via ETL pipelines, transforms it into analytics-ready datasets, and delivers dashboards, insights, and AI-powered recommendations embedded directly into business workflows.

Personal SaaS
PureText.io•1k MRR
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Experience

Lead AI Engineer
Nationale-Nederlanden (Fintech)

Agentic AI Fraud Detection / KYC Platform / AI Data Insights Platform

07/2022 - Present

Current
  • • Led the design, implementation, and scaling of production-grade AI platforms used by banking and insurance customers in regulated environments
  • • Designed and delivered an Agentic AI Fraud Detection and KYC Platform on Microsoft Azure using Databricks, Delta Lake, Azure Data Factory, Airflow, Python, SQL, Spark, and Scala
  • • Implemented LLM-powered, agentic AI workflows using RAG, embeddings, and vector databases, integrated with TensorFlow and Vertex AI
  • • Delivered real-time transaction analysis and case scoring for 2M+ transactions/day, achieving sub-300ms P95 inference latency and 99.99% availability
  • • Built and scaled an AI Data Insights Platform ingesting and processing 5TB+ of enterprise data, transforming raw inputs into analytics-ready datasets, dashboards, and AI recommendations
  • • Enabled 200+ enterprise clients to generate AI insights across fraud, risk, and compliance workflows, contributing to €1.4M in revenue generation
  • • Orchestrated data, ML, and LLM pipelines with Airflow, including model retraining, evaluation, drift detection, monitoring, and data quality checks
  • • Designed low-latency, scalable architectures aligned with ISO 27001 and NIS2, enforced via CI/CD-integrated SAST/DAST and dependency scanning (Snyk, SonarQube)
  • • Applied FinOps optimizations, reducing Azure cloud and AI platform costs by €10K+ annually

Tech Stack:

PythonJavaSparkScalaTensorFlowLangChainLlamaIndexVector DBsAirflowDatabricksAzure OpenAIVertex AITerraformKubernetes
Senior Software Engineer
Carlsberg (E-Commerce)

08/2020 - 07/2022

  • • Contributed to a new international e-commerce platform serving 1M+ users
  • • Led architecture and development of distributed backend services and secure APIs
  • • Designed and deployed cloud-native microservices with full CI/CD automation, ensuring 24/7 availability
  • • Developed 10+ microservices in Python and Java for order processing, stock updates, checkout flows, and Stripe payments
  • • Designed and implemented Databricks ETL pipelines (PySpark, Delta) ingesting 1–2 TB/month from Kafka, APIs, and SQL sources
  • • Re-architected 100+ CI/CD pipelines with GitHub Actions and Terraform, reducing deployment failures by 90%
  • • Containerized services with Docker and Kubernetes (Istio), achieving 99.98% SLA
  • • Implemented observability with Prometheus and Grafana, reducing page load latency by 35%
  • • Enforced security best practices: encryption, IAM least privilege, vulnerability scanning (Snyk, SonarQube)

Tech Stack:

AzureAWSDockerKubernetesKafkaTerraformPythonDatabricksGrafanaPrometheus
Software Engineer
Truphone (Telco – eSIM Services)

07/2017 - 08/2020

  • • Contributed to cloud-native transformation of global eSIM and GSM platforms serving 1M+ users
  • • Led migration from legacy infrastructure to microservices-based platforms on Azure and AWS, achieving 99.95% uptime
  • • Supported onboarding of 50K+ users/year through scalable backend and data architectures
  • • Rewrote core provisioning, billing, and account services in C# (.NET Core), reducing API latency by ~70%
  • • Designed and implemented 10+ REST APIs for SIM activation, billing, and provisioning
  • • Built multi-region infrastructure using Terraform and GitOps (ArgoCD)
  • • Implemented CI/CD pipelines with GitHub Actions across multi-cloud environments
  • • Designed multi-tenant data models using MySQL and Cosmos DB
  • • Integrated monitoring, alerting, and security controls (Prometheus, Grafana, Fortify, OWASP ZAP, SOC2 logging)

Tech Stack:

AzureAWSDockerKubernetesC#.NET CoreTerraformArgoCDCosmos DBMySQL

About Me

Core Tech Stack

PythonSpark/ScalaDatabricksAzure Data FactoryAirflowTensorFlowLangChainRAGAzure OpenAIKubernetesTerraform
Lisbon, Portugal
+351 936 365 541
samuel.beuran98@gmail.com
samuelbeuran-ai.com

Key Projects

Personal SaaS
PureText.io
1K MRR
AI Text Humanization & Detection Bypass Platform

PureText converts your AI-generated content into fully humanized, undetectable writing—ensuring it passes every AI detection tool. Built with advanced NLP models and machine learning algorithms to create natural, human-like text that bypasses all major AI detectors.

Next.jsTypeScriptOpenAI APIMachine LearningNLPVercelStripe
Impact: 1k MRR, successful SaaS business
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AI Fraud Detection Platform
Real-time fraud detection using GPT-4 and ML models

Built a highly scalable fraud detection system processing 2M+ daily transactions with real-time anomaly scoring using GPT-4, embeddings, and vector databases.

PythonGolangKafkaGPT-4TensorFlow
Impact: Prevented €1.2M+ in annual fraud losses
Data Warehouse Platform
ETL pipelines and analytics for 5TB+ monthly data

Designed robust ETL pipelines with Spark, Scala, and Airflow for processing massive amounts of customer and transactional data, enabling BI dashboards and compliance reporting.

SparkScalaAirflowTensorFlowKafka
Impact: Reduced processing failures by 55%, cut processing time by 30%
Microservices Migration
Legacy monolith to cloud-native microservices

Refactored legacy monolith into containerized microservices on Kubernetes with Istio for service discovery, mTLS encryption, and A/B testing capabilities.

KubernetesIstioDockerTerraformArgoCD
Impact: 99.99% uptime for 50k+ req/min, 60% faster provisioning
Security & Compliance Platform
Automated security scanning and compliance

Integrated automated security scans into CI/CD pipeline with SonarQube, OWASP ZAP, and custom LLM-based scripts, ensuring PSD2 and GDPR compliance.

SonarQubeOWASP ZAPOAuth2JWTLLM
Impact: 85% reduction in production CVEs, 92% test coverage

Skills & Technologies

Programming Languages
PythonAdvanced
GolangAdvanced
JavaAdvanced
C#Advanced
TypeScriptAdvanced
Cloud & Infrastructure
AWSExpert
AzureExpert
GCPAdvanced
KubernetesExpert
TerraformExpert
AI & ML Technologies
TensorFlowAdvanced
LangChainAdvanced
OpenAI APIAdvanced
Vector DBsAdvanced
AirflowAdvanced

Certifications

Azure AI Engineer AssociateMicrosoft DevOps Engineer ExpertAWS Certified DevOps EngineerKubernetes AdministratorTerraform AssociatePrometheus Certified Associate

Get In Touch

I'm always interested in new opportunities and exciting projects. Let's discuss how we can work together!

samuelbeuran-ai.com