Mark Biesheuvel

Optimizely Amsterdam, Netherlands

Optimizely is the leader in experimentation, A/B testing, and Experience Optimization (EXO).

Senior Solutions Architect September 2023 - Present

Solutions Architect April 2022 - August 2023

Helping customers implement and get value out of Optimizely products. Leading key discussions and considerations around change programs from both a business and technical perspective. Assisting internal sales teams in responses to RFPs and technical requirements documents. Developing opportunities for customer-facing enterprise architecture engagements.

Amazon Web Services Amsterdam, Netherlands

Amazon Web Services (AWS) is the leader in Cloud Infrastructure & Platform Services.

Senior Technical Instructor April 2021 - March 2022

Technical Instructor June 2019 - March 2021

Delivered instructor-led classroom training to technical audiences. Acted as subject matter experts (SME) for the broader training team regarding technical topics or content. Assisted in developing & maintaining technical training content, lab exercises, presentations, and accompanying materials.

• Delivered classroom training to thousands of students.
• Attained average instructor CSAT of 4.62 out of 5 across a wide range of courses.
• Developed Python script to aggregate training reports, saving 2 days per month of manual work.
• Created and delivered two short webinars to a total of 600 customers.

Oblivion Cloud Control Amsterdam, Netherlands

Oblivion Cloud Control is an AWS Premier Consulting Partner. It has since been acquired by Xebia Group.

Cloud Consultant & Engineer April 2017 - May 2019

Developed automated and scalable infrastructures on AWS. Delivered technical training and workshops to developers and architects. Translated business challenges from our clients to technical solutions.

• Implemented dependency graph to parallelize deployments resulting in a 6× improvement.
• Automated build process of custom machine images and distribution across multiple accounts.
• Reduced compliance reporting job from more than 30 minutes to less than 10 seconds.
• Implemented CI/CD pipeline for Docker containers so that developers can test their code quicker.

Deskbookers Amsterdam, Netherlands

Deskbookers is an online marketplace to book and pay for meeting rooms. It has since been acquired by Spacebase.

Back-end Developer September 2016 - March 2017

Developed new features in PHP web application and resolved performance and functional issues. Deployed software releases to cloud infrastructure.

• Developed access control system for more granular control over user permissions.
• Improved integration with bookkeeping software to reduce workload of Finance department by 5h/week.
• Implemented search function with Elasticsearch to solve issues with geographical aggregations.
• Solved bug in category tree structure to reduce query time from >20s to 0.2s.

QForma Oisterwijk, Netherlands

QForma was a local web agency. It has since merged with Tirato to form NOBEARS.

Web Developer September 2012 - August 2016

Developed custom PHP web applications and CMS powered websites for customers. Responsible for MySQL databases, back-end applications, and integrations with front-end. Planned and executed migration from managed hosting providers to the AWS cloud.

• Replaced code from CMS with a handwritten SQL query to reduce page load time from 8s to 0.8s.
• Restructured cache usage of ACL to reduce base memory usage per request from 80MB to 16MB.
• Developed an integration with VoIP system to display customer information from CRM in real-time.
• Improved product search for web shop with 8,000 products with Elasticsearch.
• Migrated web applications to AWS to reduce hosting costs by approximately 50%.

Eindhoven University of Technology Eindhoven, Netherlands

Bachelor of Computer Science September 2009 - August 2012

Curriculum included Object-Oriented Programming, Functional Programming, Data Structures, Algorithms, Discrete Mathematics, Human-Computer Interaction, Operating Systems, and Computer Networks.