🧑💻 Niels
(they/he)Freelance Software Engineer
Software Engineer, Founder at Riotbyte
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Career: 9
Software Engineer, Founder
Riotbyte
Self-employed · Rotterdam, South Holland, NL · Remote (anywhere)
Aug 2025 - Present
Software Engineer, Founder
Riotbyte
Self-employed · Rotterdam, South Holland, NL · Remote (anywhere)
Full-Stack software engineering and consultancy
Consultant & Full-Stack Software Developer
Mokkenstorm Technology
Self-employed · Oisterwijk, North Brabant, NL · Remote (anywhere)
Feb 2019 - Present
Consultant & Full-Stack Software Developer
Mokkenstorm Technology
Self-employed · Oisterwijk, North Brabant, NL · Remote (anywhere)
Sole member of Mokkenstorm Technology B.V., delivering work across MVP development for startups and large-scale system design for established companies. - Hands-on full-stack development across TypeScript, React, NestJS, Next.js, PHP, Laravel, and Rust - cloud-native delivery on AWS, DigitalOcean, GCP, and Azure - CI/CD via Azure DevOps, GitHub Actions, GitLab CI, and Bitbucket Pipelines - design system work with Storybook, Sass, and Docusaurus - active open-source contributions - Agile/Scrum facilitation and advisory for non-technical stakeholders
Full-Stack Developer
HEMA
Contract · Amsterdam, North Holland, NL · Hybrid
Feb 2024 - Apr 2025
Full-Stack Developer
HEMA
Contract · Amsterdam, North Holland, NL · Hybrid
Core Services team. Built API integrations and highly available, event-driven message services on Kafka. Custom XML service bus underpinning infrastructure, logistics, and customer-facing retail processes. Stack included Python, Node.js, TypeScript, AWS (DynamoDB, Aurora, Lambda), Kafka, and Jest
Senior Full-Stack Developer & Consultant
Varias
Contract · Rotterdam, South Holland, NL · Hybrid
Sep 2023 - Oct 2024
Senior Full-Stack Developer & Consultant
Varias
Contract · Rotterdam, South Holland, NL · Hybrid
Stepped back from the CTO role to focus on senior delivery and consultancy work across Varias client engagements. React (incl. React Native), TypeScript, Rust, Symfony, Laravel, Vue.js, NestJS, Next.js, Sass, Contentful, GraphQL, Tailwind, and Shopify.
CTO & Senior Full-Stack Developer
Varias
Full-time · Rotterdam, South Holland, NL · Hybrid
Mar 2021 - Sep 2023
CTO & Senior Full-Stack Developer
Varias
Full-time · Rotterdam, South Holland, NL · Hybrid
Technical leadership for an engineering team of 20: hiring, mentoring, and career development. Lead developer and technical product owner for Rotterdam Partners (rotterdam.info, public sector) on React/Tailwind/Contentful/GraphQL. Owned the technical roadmap, scalable architecture, and modern stack adoption. Drove Developer Experience improvements (infrastructure as code, CI/CD, linting, quality tooling, meetups) and contributed pre-sales solution architecture.
Lead Full-Stack Software Developer
Fortel Media
Full-time · Rotterdam, South Holland, NL · On-site
Jul 2018 - Feb 2019
Lead Full-Stack Software Developer
Fortel Media
Full-time · Rotterdam, South Holland, NL · On-site
Promoted to lead developer. Continued work on the legacy codebase, chatbot development, and the international real-time IVR system using websockets and VoIP.
Full-Stack Software Developer
Fortel Media
Full-time · Rotterdam, South Holland, NL · On-site
Jan 2018 - Jul 2018
Full-Stack Software Developer
Fortel Media
Full-time · Rotterdam, South Holland, NL · On-site
Worked on a legacy codebase, chatbot development, and an international real-time IVR system using websockets and VoIP.
Full-Stack Software Developer
CODE Internet Applications
Full-time · Delft, South Holland, NL · On-site
Jun 2016 - Jan 2018
Full-Stack Software Developer
CODE Internet Applications
Full-time · Delft, South Holland, NL · On-site
Software development for agency clients. PHP/jQuery moving to React/Vue. Shopify storefronts and integrations.
Full-Stack Software Developer
Whinkel
Part-time · Rotterdam, South Holland, NL · On-site
Jun 2015 - May 2016
Full-Stack Software Developer
Whinkel
Part-time · Rotterdam, South Holland, NL · On-site
Part-time backend development. Magento, Google Analytics, data import and analysis.
Education: 1
TU Delft
Computer Science
Sep 2014 - Jul 2016
TU Delft
Computer Science
Computer Science & Engineering
Projects: 3
CV Generator
Aug 2025 - Present
CV Generator
Multi-tenant CV generator built with NestJS, GraphQL (Apollo), Prisma, React, and a custom design system. Supports multiple templates, AI-assisted parsing, and PDF export. Planned migration to atproto-native data layer using Sifa lexicons.
bitbucket-tool
bitbucket-tool
CLI for managing Bitbucket-style stacked PRs across a dual-remote topology (GitHub + tangled.org). Supports rebase coordination, lease-based push safety, and stack-aware branch operations.
Moneybird to Notion sync
Moneybird to Notion sync
Internal automation that syncs Moneybird project data into a Notion Project Tracker database via mapped Moneybird Project IDs.
Credentials: 2
Shopify
Laravel
Volunteering: 2
Volunteer Bar/Security
MOJO
Barman
OJV de Koornbeurs
Awards: 1
Arctic Code Vault Contributor
GitHub
Contributor to repositories preserved in the GitHub Archive Program 2020 Arctic Code Vault, including laravel/framework, fruitcake/laravel-cors, and tailwindlabs/tailwindcss.com.