Taking the pain out of your data — at any scale.

Track record

Selected work

The cases below are public; I have references with names attached on request.

• 2026 — present

  Enyquant — Platform Architect & end-to-end Data Engineer — raw → modeled (Azure + Alibaba Cloud) — FTE

  Sole hands-on architect for a dual-region Lakehouse (Azure EU + Alibaba Cloud China) at an energy-trading, AI-first startup. Full ownership of platform, pipelines, IaC, CI/CD, IAM, and cross-region architecture.

  • — Medallion-architecture Lakehouse on ADLS Gen2 + Databricks Unity Catalog with dev/prod parity
  • — 100% IaC (CDKTF + Terraform); zero click-ops drift
  • — Event-driven serverless pipelines for energy-market data across both regions
  • — Multi-team IAM, cost allocation, and secure cross-region data access models
  • — Reusable multi-cloud architecture layer for consistent EU ↔ China deployment
  • — Designed for AWS portability (Lambda / Step Functions / API Gateway / S3 equivalents)
  • — Built an AI-assisted (Harness Engineering) delivery practice → ~3× individual throughput

  Azure (ADLS Gen2, Databricks, ADF, Functions, Key Vault, Entra ID) · Alibaba Cloud (OSS, Function Compute, DataWorks, EMR Spark) · Terraform + CDKTF (TypeScript) · GitHub Actions + OIDC · Python, SQL

• 2022 — 2024

  VodafoneZiggo — Data Engineer & Infra Admin — Freelance

  Migrated legacy DWH workloads from Oracle to Snowflake on a 1PB+ enterprise datalake. Owned CDC ingestion, IaC, and the CI/CD foundation that the broader team builds on.

  • — Supported Snowflake migration from legacy Oracle DWH
  • — Designed and maintained CDC-based ingestion pipelines (DMS-based)
  • — Managed AWS infrastructure as code (CDK + Terraform)
  • — Introduced CI/CD improvements that saved the broader team 60+ hours of manual work
  • — Delivered ETL pipelines and an internal data-engineering framework on a 1PB+ datalake
  • — Supported data scientists and analytics teams with reliable datasets

  Snowflake · AWS · Terraform, AWS CDK (TypeScript) · Python, SQL, Spark · AWS DMS for CDC · GitLab CI/CD

• 2020 — 2022 & 2023 — 2025 (returned engagement)

  PVH Corp (Tommy Hilfiger, Calvin Klein) — Lead Data Engineer — Freelance

  Lead engineer for a 500+TB AWS data lake with 90+ sources and 1000+ datasets. Two engagements covering the Hadoop → AWS migration and a later platform-modernisation phase.

  • — Migrated the data lake from Hadoop to AWS
  • — Designed and shipped external integrations: Adobe, Salesforce, SAP, +others
  • — Refactored the ETL layer to be idempotent and config-driven
  • — Fixed long-standing timezone issues across data and scheduling
  • — Self-service analytics platform with 60+ dashboards used by CRM & C-suite — TTM 2 weeks → 10 minutes
  • — Real-time GDPR (de)anonymization service: latency 2h → real-time, cost 10× lower
  • — Migrated workloads to Azure Databricks; integrated GCP BigQuery & Google Analytics sources
  • — Acted as senior platform engineer advising on DataOps, IaC, and production readiness

  AWS (S3, Glue, EMR, ECS, Lambda, API Gateway, Athena, Step Functions) · Spark, Kafka, dbt, Airflow · Terraform, AWS CDK · GitLab CI/CD · PyDeequ for data quality · Azure Databricks, GCP BigQuery (cross-cloud sources)

• 2018 — 2020

  FedEx — Data Engineer — Freelance

  DE on the AWS data platform — managing infra as code and shipping ETL — with a side specialty in productising data-science Spark code into maintainable engineering.

  • — Managed AWS data infrastructure as code (Terraform)
  • — Developed new data-source integrations and ETL pipelines
  • — Productised DS-written Spark code into engineered, scheduled DE pipelines
  • — Optimised a DS Spark job from 3h OOM (<50% progress) to under 5 minutes — 175× speedup, by replacing a serial for-loop over 175 independent cases with a cross-join

  AWS · Terraform · Spark · PySpark · Python

• 2018

  ABN AMRO — Data Engineer — FTE

  Contributed to the DIAL data platform build — consolidating fragmented departmental ETL onto a shared platform and migrating workloads from Hive to PySpark.

  • — Helped consolidate fragmented per-department ETL onto the shared DIAL platform
  • — Migrated workloads from Hive to PySpark
  • — Replaced a colleague's recurring 3-day-per-week manual Excel workflow with a 3-minute script

  Hive · PySpark · Spark · Python

• 2016 — 2018

  KPN — Big Data Consultant — FTE (B2B division)

  Hadoop cluster admin in KPN's B2B arm — installing and operating Hortonworks HDP clusters on bare-metal for external enterprise customers. Built the team's automated system-health framework.

  • — Operated Hortonworks HDP Hadoop clusters on bare-metal hardware for external B2B customers
  • — Built an automated end-to-end system-health check suite in Robot Framework, replacing the manual install-verification routine
  • — Saved the team 8+ hours per week of repetitive manual verification

  Hortonworks HDP · Hadoop · Bare-metal · Robot Framework · Python

• 2009 — 2012

  Huawei — Software Test Engineer — Telecom Core Database (HLR / HSS) — FTE

  Telecom core-network database work — HLR / HSS for mobile operators. Test & delivery lead on a major core-database cutover at KPN Netherlands (16M subscribers in scope, 12M migrated, zero incidents).

  • — Test & delivery lead on the KPN NL core-network database cutover — 16M subscribers in scope, the most critical database in their core network
  • — ~7 months of intensive pre-cutover testing; identified hundreds of bugs across all severity levels
  • — Led the design and execution of the migration plan, including staged rollouts and rollback procedures
  • — Zero incidents across months of cutover operations; 12M subscribers migrated successfully

  HLR · HSS · Telecom core network · Test engineering · Migration planning

Tech stack

Cloud

AWS (deepest), Azure, Alibaba Cloud, GCP

Lakehouse

Databricks, Snowflake, Unity Catalog, Iceberg, DuckDB

ETL

Spark, dbt, Glue, Kafka, AWS DMS (CDC)

Languages

Python, SQL, TypeScript, Scala, Shell, Solidity, Cython

Orchestration

Airflow, ADF, Step Functions, DataWorks, Oozie

IaC

Terraform, AWS CDK, CDKTF, Ansible

CICD

GitHub Actions, GitLab CI/CD, Jenkins

Quality

PyDeequ, Great Expectations

Certifications

• — AWS Certified Solutions Architect — Associate
• — Databricks Certified Associate Developer for Apache Spark
• — Databricks Certified Data Engineer Associate
• — Certified Associate in Python Programming

Education

MSc, Communication & Information Systems — Xidian University, China. IDW evaluation: equivalent to MSc Computing Science (NL).