Laurenz Saam - Cloud Architect / Backend Engineer

Q: Where is Laurenz based?

Laurenz is based in Madrid, Spain and can operate in on-site , hybrid , and remote work models.

Q: What languages does Laurenz speak?

Laurenz speaks the following languages: German (Native), English (Advanced), Spanish (Elementary) .

Q: How many years of experience does Laurenz have?

Laurenz has at least 6 years of experience. During this time, Laurenz has worked in at least 11 different roles and for 12 different companies . The average length of individual experience is 5 months . Note that Laurenz may not have shared all experience and actually has more experience.

Q: What is Laurenz's latest experience?

Laurenz's most recent position is Backend Engineer / Data Engineer .

Q: What companies has Laurenz worked for in recent years?

In recent years, Laurenz has worked for Interzero , BMW , Enterprise Automation Platform , Asset Management Platform , and Nagel Logistics .

Q: Which industries is Laurenz most experienced in?

Laurenz is most experienced in industries like Information Technology , Healthcare , and Energy . Laurenz also has some experience in Agriculture , Automotive , and Transportation .

Q: Which business areas is Laurenz most experienced in?

Laurenz is most experienced in business areas like Information Technology , Product Development , and Project Management . Laurenz also has some experience in Sustainability Management and Business Intelligence .

Q: Which industries has Laurenz worked in recently?

Laurenz has recently worked in industries like Information Technology , Healthcare , and Energy .

Q: Which business areas has Laurenz worked in recently?

Laurenz has recently worked in business areas like Information Technology , Product Development , and Project Management .

Recommended expert

Madrid, Spain

Experience

Jan 2026 - Feb 2026

2 months

Backend Engineer / Data Engineer

Architecture ownership for Time-Series Data Pipeline (Propstack CRM → PostgreSQL on AWS); defined daily bulk sync and retention model
Designed the Lambda-based pipeline architecture: multi-endpoint sync (properties, appointments, deals), incremental processing, change detection; defined filtering and PII anonymization
Designed the PostgreSQL schema for time-series analytics and Power BI reporting; defined EventBridge scheduled triggers and data cleaning/transformation approach

Dec 2025 - Feb 2026

3 months

Solutions Architect / Fullstack Engineer

Interzero

Architecture ownership for a plugin-based automation platform (EU PPWR EPR compliance); defined an extendable plugin model for country-specific implementations and a templating system for fast rollout to new markets
Designed the EPR registration and volume reporting workflow architecture with country-specific plugins (e.g., France/Citeo), Playwright-based automation and human verification (CAPTCHA) integration
Architected the invoice validation pipeline: Microsoft Graph API integration, AWS Textract-based PDF extraction, and comparison logic for compliance verification; defined evidence capture and S3 storage model with full audit trail
Designed the workflow execution engine architecture (sequential steps, error handling, retry) for compliance-critical workflows across multiple EU countries
Defined an asynchronous architecture (NATS JetStream, Worker Threads/Piscina) for non-blocking execution and scalable processing
Designed REST API and configuration model for ERP integration (workflow tracking, company management)
Implemented the plugin core, workflow engine, and REST API in NestJS/TypeScript

Dec 2025 - Jan 2026

2 months

Technical Product Owner / AWS Solutions Architect / Data Engineer

BMW

Architecture ownership for data platform migration (Palantir Foundry → AWS); defined migration strategy, ETL pipeline design, and CI/CD integration approach
Designed the medallion architecture (Bronze → Silver → Gold): S3 raw layer, Glue ETL processing, curated Parquet outputs; defined Glue job design (column selection, enrichment, deduplication, hash keys)
Conceived integration pipelines for external source systems and API-based data delivery including mapping, harmonization, and quality rules for analytical target models
Architected the dual-output strategy: visualization layer (OpenSearch / direct Parquet) and RAG-agent training pipeline; defined vector storage and retrieval (S3 Parquet + embeddings, OpenSearch, Lambda, API Gateway)
Designed the RAG agent architecture with two options: Bedrock Knowledge Base (managed) vs. self-managed vector tables in S3 via Glue ETL; conducted technology evaluation and documented trade-offs
Defined data catalog and schema discovery approach (Glue crawlers, Athena for SQL on Parquet)
Documented architecture decisions and trade-offs (Glue vs. EMR, Athena vs. Redshift, S3 vs. RDS)
Defined NFRs for scalability, cost, and retention; created handover documentation and runbooks for platform operations

Nov 2025 - Dec 2025

2 months

Solutions Architect / Backend Engineer

Architecture ownership for LLM Gateway integrated with an Enterprise Automation Platform; defined an agent-based model (specialized agents per use case, async via Kafka)
Designed the multi-provider orchestration: OpenAI, AWS Bedrock, Mistral, Ollama (local); defined provider abstraction, routing, and fallback strategy
Architected security and compliance: PII data sanitization pipeline, policy enforcement (PII detection, region constraints, rate limiting); JSON Schema validation (Ajv)
Defined Kafka-based async agent execution with tool calling for external systems (SAP RFC, Jira API); designed the orchestrator with audit logging, performance tracking, and health monitoring
Implemented the provider abstraction, orchestrator logic, and PII pipeline in NestJS/TypeScript

Jul 2025 - Jan 2026

7 months

Technical Product Owner / Solutions Architect / Fullstack Engineer

Enterprise Automation Platform

Architecture ownership for an enterprise automation platform; defined cross-platform task orchestration across ITSM systems (Jira, Confluence, SAP, Microsoft Graph API)
Designed the Domain Driven Design (DDD) architecture: bounded contexts, aggregates, domain events; defined connection adapter framework and platform discovery for multi-system integration
Architected the multi-tenant model: mirrored customer Jira instances, unified API layer, row-level security; designed the Jexl-based DSL for workflow definition
Conceived an integration layer based on Apache Camel/EIP principles (content-based routing, splitter/aggregator, dead-letter handling, idempotent consumer)
Designed the SAP integration architecture: Socket.io/WebSocket relay, RFC/BAPI calls, real-time data exchange; routing and error-handling concepts; stateless relay and hybrid execution (cloud/on-premise) with audit trail
Defined event-driven architecture (Kafka, consumer groups, topic-based routing) and fullstack deployment model (NestJS, Nuxt v4, PostgreSQL, Pulumi IaC, GitHub Actions CI/CD)
Applied architecture patterns: Adapter Pattern, Singleton Manager, Connection Discovery
Architecture documentation and handover for multi-tenant rollout; operational runbooks for platform operations
Implemented backend modules (NestJS), Pulumi IaC, and integration into GitHub Actions CI/CD

May 2025 - Dec 2025

8 months

Fullstack Cloud Engineer / Solutions Architect

Architecture ownership and complete end-to-end implementation of the event-driven training notification solution: AWS variant (Lambda, SQS FIFO, EventBridge, SAM) and Azure variant (Azure Functions, Azure Service Bus, Azure DevOps)
Designed the event-driven flow: SFTP CSV → parse/aggregate → compose messages → compress → queue → function → manager emails
Architecture of queue and failure handling: message compression (AWS SQS FIFO/Gzip; Azure Service Bus batching), dead letter queue; error classification, rate limiting, progressive backoff
Defined output variants (email template vs. Excel attachment) and multi-language support; designed scheduled triggers and CI/CD (EventBridge/timer, Jenkins/Azure DevOps)

Apr 2025 - Jul 2025

4 months

Technical Product Owner / Solutions Architect / Fullstack Engineer

Asset Management Platform

Architecture ownership for a 3D asset-sharing platform (Unity); defined the upload/download flow and web and iOS client access model
Designed the AWS ECS-based architecture and Pulumi IaC for scalable asset management backend; defined streaming upload architecture (on-the-fly ZIP extraction for large Unity assets up to 5 GB)
Architecture of ABAC (attribute-based access control): per-asset, per-user permissions, Keycloak for auth; designed the permission evaluation model and PostgreSQL schema (Prisma ORM)
Designed the S3 and CloudFront CDN architecture for asset delivery to iOS; defined feature-based frontend (Nuxt 4, Nuxt UI) and SSE-based real-time notification model
Implemented backend services, Pulumi IaC, and streaming upload logic

Mar 2025 - Dec 2025

10 months

Technical Product Owner

Nagel Logistics

Technical product ownership for CALSuite WMS (warehouse management, workflows, integration); backlog, user stories, technical requirements, alignment with internal development team
Evaluated solution options and integration into existing .NET system landscape (WMS, warehouse control, interfaces); architecture and delivery context

Jul 2023 - Dec 2024

1 year 6 months

Technical Product Owner / AWS Solutions Architect / Tech Lead

E.ON AG / BMW AG

Architecture ownership for a cross-company platform (E.ON Energy Services, BMW EV ecosystem); defined the integration model for forecasting algorithms, energy trading, and charging backend
Designed the AWS serverless and container architecture (Lambda, Fargate, DynamoDB, API Gateway, CloudFront) and NestJS backend design for EV charging optimization
Architecture of cross-company data exchange and security model: zero trust, IAM policies, network configuration for secure cross-company data flows
Designed the user registration and eligibility flows (BMW app linkout, E.ON contract lookup); forecast request integration (E.ON APIs for solar/consumption data)
Monitoring, logging, and cost optimization approach (AWS CloudWatch); technical coordination between E.ON and BMW development teams
Defined and documented NFRs (scalability, availability, cost) for cross-company integration
Co-developed the NestJS backend and the IaC templates (Terraform, Serverless Framework)

Sep 2022 - Jul 2023

11 months

Technical Product Owner / Cloud Architect

P3 Digital Services

Architecture ownership for a centralized energy management and analytics platform (eMobility); designed the Azure-based infrastructure for real-time data processing and integration
Defined containerized deployment strategy (Docker, Kubernetes) and observability (Prometheus, Grafana); designed the frontend architecture (React dashboards)
Led the full SDLC from requirements definition to deployment and optimization

May 2022 - Dec 2022

8 months

Fullstack Web Developer

Ristorante Piccobello

Design of the responsive website architecture with a lean CMS and real-time menu updates (Google Sheets integration)

Jan 2022 - Jul 2022

7 months

Fullstack Web Developer

Wildbach Camping

Design of the multilingual fullstack web platform; defined the serverless contact form architecture (AWS SES)
Management of the SDLC from UI design to deployment

Jan 2021 - Dec 2022

2 years

Solutions Architect

KWS SAAT SE & Co.

Architecture ownership for the ML-based smartphone app (agricultural quality assurance); design of the AWS SageMaker-based image recognition and quantification system
Defined infrastructure provisioning (Terraform) and integration architecture for backend, mobile, and ML components

Mar 2020 - Dec 2022

2 years 10 months

Technical Product Owner

umlaut solutions GmbH

Architecture ownership for the emergency coordination platform; design of the real-time communication architecture (emergency vehicles, medical staff, hospitals)
Defined AWS-based cloud infrastructure with Kubernetes; security, monitoring, and performance model; ensured high availability and reliability
Architecture documentation (arc42); documented NFRs for availability, resilience, and performance

Aug 2019 - Dec 2019

5 months

Technical Product Owner

umlaut solutions GmbH / DB Systel GmbH

Architecture ownership for the real-time monitoring and forecasting tool (onboard Wi-Fi, rail); management of cross-company collaboration
Design of the containerized backend deployment and mobile application integration

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Information Technology, Healthcare, Energy, Agriculture, Automotive, and Transportation.

Information Technology

Healthcare

Energy

Agriculture

Automotive

Transportation

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology, Product Development, and Project Management.

Information Technology

Product Development

Project Management

Summary

I am a Technical Product Owner and Cloud Architect with over 7 years of experience shaping AWS-native platforms—from solution design and architecture ownership to implementation. In many projects I do both: TPO (backlog, prioritization, alignment with business units and development) and architecture. Focus areas: requirements engineering, evaluating technical solution options, and stakeholder coordination for rollout and integration into existing IT. Emphasis on security-by-design, cost optimization, and operational excellence; industries: transport/logistics, energy sector.

Hands-on: I develop and implement myself—solution design and architecture plus substantial coding (TypeScript, IaC), not just documentation or coordination
Technical Product Owner: backlog, roadmap, and prioritization; bridge between business units, development, and architecture; architecture ownership with requirements engineering and stakeholder coordination; handover and standards alignment
Requirements analysis and solution design; evaluating technical solution options (monolith, microservices, serverless) and aligning with enterprise guidelines
Non-functional requirements (NFRs): scalability, availability, resilience, performance, cost—definition, validation, and documentation
Trade-off and risk analysis in design decisions; architecture governance and standards alignment
API and interface design (contracts, integration boundaries, system interfaces)
Architecture documentation (decision records, runbooks, handover, arc42/C4)
AWS cloud architecture and implementation (TypeScript where applicable); data platform and integration design
Stakeholder coordination and rollout support (integration into existing IT, testing, documentation)
Technology evaluation and PoCs; reviewing implementations against architecture and standards
Architecture discovery workshops and consulting; developing target architectures with internal teams
Security-by-design and cost-optimized operations in enterprise and cross-company contexts
Multi-cloud strategies and cost estimation for cloud infrastructure

Skills

Aws & Platform Architecture

Solution Design And Architecture Ownership For Serverless (Lambda, Api Gateway, Sqs, Dynamodb) And Container-based (Fargate, Ecs) Systems
Event-driven And Multi-tenant Architectures
Zero Trust Security, Nfrs, Cost Optimization

Data & Integration

Etl/elt And Data Platform Migrations (E.g., Palantir To Aws)
Medallion Architecture, Rag/vector Stores
Cross-enterprise Data Exchange And Api/interface Design

Enterprise & Itsm

Integration Patterns (Jira, Sap, Microsoft Graph)
Workflow Automation
Api/gateway Design
Architecture Documentation (Arc42, C4)
Handover And Runbooks

Cloud Platforms & Infrastructure (Aws Focus)

Amazon Web Services (Aws): Lambda, Fargate, Ecs, S3, Dynamodb, Rds, Aurora, Amazon Redshift, Api Gateway, Cloudfront, Kinesis, Kinesis Data Firehose, Sns, Sqs, Aws Ses, App Runner, Ecr, Eventbridge, Secrets Manager, Bedrock, Sagemaker, Glue (Etl Jobs, Data Catalog, Crawlers), Athena, Opensearch
Microsoft Azure: Azure Functions, Azure App Services, Azure Service Bus, Azure Devops, Azure Monitor, Azure Identity; .Net Core / Asp.net (Architecture And Project Context In Enterprise Projects)
Event-driven And Microservice Patterns
Infrastructure As Code (Terraform, Aws Cdk, Serverless Framework, Pulumi, Aws Sam)

Security & Architecture

Zero Trust Architecture Principles
Iam Policies And Secure Cloud Networks
Secure Api Design
Architecture Documentation (Arc42, C4 Model, Bpmn)
Multi-tenant Architectures With Row-level Security
Task Orchestration And Workflow Automation
Integration Patterns And Connection Adapters
Plugin-based Architecture And Execution Engine Abstraction
Authentication Systems (Keycloak, Oidc/saml)
Evidence Capture And Audit Trail Systems

Devops, Ci/cd & Operations

Ci/cd: Github Actions, Gitlab Ci/cd, Azure Devops Pipelines, Jenkins
Containers: Docker, Kubernetes, Podman
Monitoring & Observability: Aws Cloudwatch, Prometheus, Grafana
Logging: Elk Stack, Pino (Structured Logging)
Cost Optimization And Operations
Ai-augmented Development (Cursor, Claude Code) For Architecture Documentation And Iac

Data Processing & Integration

Streaming Data Processing (Csv, Large File Handling)
Etl/elt Pipelines And Time-series Data
Sql-based Transformation Processes For Data Warehouse And Cdp Workloads
Data Model Design, Source System Mapping, Data Validation And Plausibility Checks (Including Unstructured Data)
Integration Of External Data Sources And Apis (E.g., Tracking, Marketing, And Business Systems)
Medallion Architecture (Bronze → Silver → Gold)
Historization, 3-layer Architectures, And Identity/user-stitching Near Data Merging
Data Lake Architecture Patterns
Incremental Sync And Change Detection
Parquet-based Analytics And Columnar Storage
Vector Stores And Embeddings For Rag Systems
Dashboard Design And Reporting (Power Bi)

Backend Engineering & Apis

Typescript, Javascript, Node.js, Python; Nestjs, Fastapi, Express
Rest Apis, Openapi / Swagger; Authentication & Authorization (Jwt, Oauth2, Oidc, Saml, Iam, Rbac)
Event Streaming And Messaging (Sns/sqs, Kafka, Rabbitmq; Nats Jetstream In Selected Projects); Eip-like Integration Patterns (Routing, Retry/backoff, Dead-letter, Idempotence)
Sql & Nosql (Postgresql, Dynamodb, Rds/aurora, Sqlite, Redis); Orm (Prisma)
Domain Driven Design (Ddd), Data Validation (Zod), Monorepos (Pnpm/npm Workspaces)
Error Handling, Retry Patterns, Connection Pooling; Worker Threads (Piscina)
Browser Automation (Playwright), Captcha Workflows; Template Engines (Handlebars)

Testing & Quality

Backend Unit And Integration Testing With Vitest (Typescript / Node.js)
Api Testing And Validation With Postman (Rest Apis, Authentication Flows, Edge Cases)
System And Workflow Automation With Playwright (Automation And Verification, Not Ui Test Suites)
Verification Of Asynchronous And Event-driven Workflows
Data And Etl Pipeline Validation Via Reconciliation And Consistency Checks
Ci/cd-integrated Verification Steps And Manual Quality Gates

Frontend Engineering

Vue.js, Nuxt.js
Nuxt Content, Nuxt Ui
React
Tailwind Css
Storybook
Api-driven Frontend Architectures

Languages

German

Native

English

Advanced

Spanish

Elementary

Education

RWTH Aachen University

Master of Science, Mechanical Engineering · Mechanical Engineering · Aachen, Germany

Certifications & licenses

AWS Developer – Associate

AWS Solutions Architect – Associate

Certified Professional For Requirements Engineering (Foundation Level)

ISAQB Certified Professional For Software Architecture (Foundation Level)

Microsoft Azure Fundamentals

Professional Scrum Master (PSM)

Professional Scrum Product Owner (PSPO)

Statistics

Experience

Total positions 15

Experience in Information Technology 4.5 y

Avg length 9 m

Longest experience 2 y 9 m

Expertise

Recent roles Backend Engineer / Data Engineer, Solutions Architect / Fullstack Engineer, Technical Product Owner / AWS Solutions Architect / Data Engineer

Main industries Information Technology, Healthcare, Energy

Main business areas Information Technology, Product Development, Project Management

Qualifications

Highest degree Master

Certifications earned 7

Profile

Created

March 2026

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Laurenz based?

Laurenz is based in Madrid, Spain and can operate in on-site, hybrid, and remote work models.

What languages does Laurenz speak?

Laurenz speaks the following languages: German (Native), English (Advanced), Spanish (Elementary).

How many years of experience does Laurenz have?

Laurenz has at least 6 years of experience. During this time, Laurenz has worked in at least 11 different roles and for 12 different companies. The average length of individual experience is 5 months. Note that Laurenz may not have shared all experience and actually has more experience.

What roles would Laurenz be best suited for?

Based on recent experience, Laurenz would be well-suited for roles such as: Backend Engineer / Data Engineer, Solutions Architect / Fullstack Engineer, Technical Product Owner / AWS Solutions Architect / Data Engineer.

What is Laurenz's latest experience?

Laurenz's most recent position is Backend Engineer / Data Engineer.

What companies has Laurenz worked for in recent years?

In recent years, Laurenz has worked for Interzero, BMW, Enterprise Automation Platform, Asset Management Platform, and Nagel Logistics.

Which industries is Laurenz most experienced in?

Laurenz is most experienced in industries like Information Technology, Healthcare, and Energy. Laurenz also has some experience in Agriculture, Automotive, and Transportation.

Which business areas is Laurenz most experienced in?

Laurenz is most experienced in business areas like Information Technology, Product Development, and Project Management. Laurenz also has some experience in Sustainability Management and Business Intelligence.

Which industries has Laurenz worked in recently?

Laurenz has recently worked in industries like Information Technology, Healthcare, and Energy.

Which business areas has Laurenz worked in recently?

Laurenz has recently worked in business areas like Information Technology, Product Development, and Project Management.

What is Laurenz's education?

Laurenz holds a Master in Mechanical Engineering from RWTH Aachen University.

Does Laurenz have any certificates?

Laurenz has 7 certificates. Among them, these include: AWS Developer – Associate, AWS Solutions Architect – Associate, and Certified Professional For Requirements Engineering (Foundation Level).

What is the availability of Laurenz?

Laurenz is immediately available full-time for suitable projects.

What is the rate of Laurenz?

Laurenz's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.