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Thomas van Welsenes

Builder, Analyst & Developer — San Francisco, USA

Internationally minded engineer and collaborator, driven by innovation and impact. I thrive at the intersection of technology and global cooperation, with a strong analytical mindset and deep curiosity for data analytics, blockchain, and sustainable innovation.

Experience

Tech Writer & Product Development

2025 — Present

Bitvavo (Freelance)

San Francisco, USA (Remote)

  • -Contributing to the Bitvavo Learn platform (Europe's largest crypto exchange) by creating educational content that improves SEO performance and AI-driven search visibility.
  • -Writing and analyzing blockchain, crypto, and market developments for Bitcoin Magazine NL, one of the largest blockchain publications in the Netherlands.
  • -Designing, building, and launching independent products end-to-end (e.g. Learn Farsi), owning the full lifecycle from concept and UX to development and launch.
  • -Offering lean product development services to small companies, helping them design, build, and ship digital products quickly.

Business Data Analyst & Scrum Master | Product Owner (interim)

2022 — 2025

Vattenfall Heat

Amsterdam, Netherlands

  • -Built the Data Management & Analytics team from 3 to 8 members, serving as both Business Data Analyst and Scrum Master. Established the team in the Agile Scrum framework, working with analytic teams from Germany and Sweden.
  • -Created a dashboard to enhance financial project administration for over 1,000 projects annually, increasing timely external payments from 10% to 50%. Used daily/weekly by over 100 users.
  • -Developed a pioneering forecasting tool integrating data from Salesforce, SAP, and SharePoint to predict future project workload. Showcased to the entire Heat NL organization at the invitation of the CEO.
  • -Led the team as interim Product Owner, gathering business requirements, managing stakeholders and the product backlog to deliver maximum value.

Junior Discipline Engineer

2021 — 2022

Boskalis

Rotterdam, Netherlands

  • -Coastal Engineer in Hydrodynamic's in-house engineering department, modeling wave conditions and designing coastal structures using Python and AutoCAD for international projects in the Philippines, Italy, and Denmark.
  • -Co-developed an automated Python tool that designs coastal structures based on environmental input, proposing dimensions and generating 2D AutoCAD drawings — reducing engineering time from hours to minutes.

International Dredging Operations

2019 — 2021

Boskalis

Rotterdam / Finland / Russia / Taiwan

  • -Selected as 1 of 30 trainees from over 500 applicants for a 2-year international program. Roles included Offshore Project Engineer (Finland/Russia), Onshore Superintendent for offshore wind (Taiwan), and Environmental/Morphologic Engineer (Rotterdam).
  • -Led a project to automate 3D wave modeling using MATLAB/Python, significantly reducing setup time for modeling campaigns across nearshore/offshore regions.

Entrepreneurship

Analyst & Co-founder

2021 — Present

Welsenes Brothers V.O.F.

Amsterdam, Netherlands

  • -Blockchain analyst, consultant, and blockchain + AI content writer for leading Dutch platforms including Crypto-Insiders.nl and AIwereld.nl. Authored over 3,000 articles generating millions of views.
  • -Sourced and advised over 50 clients, earning a 4.8/5 rating on Fiverr.
  • -Co-created and expanded tech news website in WordPress, reaching hundreds of monthly viewers.

Financial Lead & Co-founder

2021 — 2022

Agora Connects

Amsterdam, Netherlands

  • -Co-founded a blockchain-based IoT company, installing over 50 Helium-powered hotspots to connect wireless devices to the network.
  • -Managed the company's budget, administration, and financial strategy.

Researcher & Co-founder

2018 — 2021

Pantai Project

Delft & Bali, Indonesia

  • -Founded a non-profit student platform enabling TU Delft students to conduct international research on plastic pollution.
  • -Drove partnerships with The Ocean Cleanup, Allseas, Arcadis, Green Giraffe, and TU Delft scientists.
  • -Managed five student research projects in Delft and Bali, in collaboration with The Ocean Cleanup.

Education

Scrum Master Certificate

2022

Scrum Alliance

MSc Hydraulic Engineering

2016 — 2019

Delft University of Technology

Specialized in Coastal Engineering (ranked 13th globally, ARWU 2023). Thesis on microplastic particle behavior in rivers at Deltares.

BSc Civil Engineering

2012 — 2016

Delft University of Technology

Ranked #1 Civil Engineering program in the Netherlands (2021).

ALCI Program

2015

California State University San Marcos

Business Management and Behavioral Economics.

Skills

PythonSQLTypeScriptReactNext.jsNode.jsPowerBIDatabricksSAPMATLABTailwind CSSWordPressAutoCAD

Languages

DutchMother tongue
EnglishFluent
GermanBasic
SpanishLearning
FarsiLearning