Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I am a Senior Full-Stack Engineer with 12+ years of experience designing and building scalable, high-impact platforms across telecom, fintech, e-commerce, and high-growth startups. I specialize in JavaScript/TypeScript ecosystems (React, Node.js) with a strong focus on system design, domain modeling, and long-term architectural maintainability. I have built real-time, high-traffic systems and own production environments end-to-end, including CI/CD, observability, and cloud infrastructure. I am an advocate for AI-augmented engineering, using AI tools to accelerate development while maintaining rigorous code quality and engineering judgment. In my roles, I lead with a focus on modular architecture, clear service boundaries, and measurable outcomes. I enjoy mentoring engineers, driving reliability, and delivering features that scale with business needs, all while maintaining a healthy balance between speed and quality.…I am a Senior Full-Stack Engineer with 12+ years of experience designing and building scalable, high-impact platforms across telecom, fintech, e-commerce, and high-growth startups. I specialize in JavaScript/TypeScript ecosystems (React, Node.js) with a strong focus on system design, domain modeling, and long-term architectural maintainability. I have built real-time, high-traffic systems and own production environments end-to-end, including CI/CD, observability, and cloud infrastructure. I am an advocate for AI-augmented engineering, using AI tools to accelerate development while maintaining rigorous code quality and engineering judgment. In my roles, I lead with a focus on modular architecture, clear service boundaries, and measurable outcomes. I enjoy mentoring engineers, driving reliability, and delivering features that scale with business needs, all while maintaining a healthy balance between speed and quality.

Mark Hendriksen

Full Stack Developer, Web Developer, Front-End Developer, +2





I am a Senior Full-Stack Engineer with 12+ years of experience designing and building scalable, high-impact platforms across telecom, fintech, e-commerce, and high-growth startups. I specialize in JavaScript/TypeScript ecosystems (React, Node.js) with a strong focus on system design, domain modeling, and long-term architectural maintainability. I have built real-time, high-traffic systems and own production environments end-to-end, including CI/CD, observability, and cloud infrastructure. I am an advocate for AI-augmented engineering, using AI tools to accelerate development while maintaining rigorous code quality and engineering judgment. In my roles, I lead with a focus on modular architecture, clear service boundaries, and measurable outcomes. I enjoy mentoring engineers, driving reliability, and delivering features that scale with business needs, all while maintaining a healthy balance between speed and quality.…I am a Senior Full-Stack Engineer with 12+ years of experience designing and building scalable, high-impact platforms across telecom, fintech, e-commerce, and high-growth startups. I specialize in JavaScript/TypeScript ecosystems (React, Node.js) with a strong focus on system design, domain modeling, and long-term architectural maintainability. I have built real-time, high-traffic systems and own production environments end-to-end, including CI/CD, observability, and cloud infrastructure. I am an advocate for AI-augmented engineering, using AI tools to accelerate development while maintaining rigorous code quality and engineering judgment. In my roles, I lead with a focus on modular architecture, clear service boundaries, and measurable outcomes. I enjoy mentoring engineers, driving reliability, and delivering features that scale with business needs, all while maintaining a healthy balance between speed and quality.

Available to hire

I am a Senior Full-Stack Engineer with 12+ years of experience designing and building scalable, high-impact platforms across telecom, fintech, e-commerce, and high-growth startups. I specialize in JavaScript/TypeScript ecosystems (React, Node.js) with a strong focus on system design, domain modeling, and long-term architectural maintainability. I have built real-time, high-traffic systems and own production environments end-to-end, including CI/CD, observability, and cloud infrastructure. I am an advocate for AI-augmented engineering, using AI tools to accelerate development while maintaining rigorous code quality and engineering judgment.

In my roles, I lead with a focus on modular architecture, clear service boundaries, and measurable outcomes. I enjoy mentoring engineers, driving reliability, and delivering features that scale with business needs, all while maintaining a healthy balance between speed and quality.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Work Experience

Senior Full-Stack Engineer at Advertise Purple Inc

January 1, 2024 - Present

Designed and built scalable backend services processing millions of conversion events, ensuring system reliability and long-term maintainability. Developed a client-facing analytics platform enabling real-time visibility into affiliate campaign performance. Modeled domain-driven APIs with clear service boundaries to support evolving product requirements. Introduced AI-augmented engineering workflows, increasing development velocity by ~30% while maintaining strict code quality standards. Strengthened system reliability through test-driven development (Cypress) and improved automated test coverage. Contributed to production ownership, including monitoring, performance optimization, and system behavior in live environments.

Technical Team Lead / Senior Full-Stack Engineer at Vodafone

January 1, 2020 - December 1, 2023

Led design and delivery of a large-scale business customer platform used by 50,000+ organizations. Defined architectural direction, focusing on modular design, system boundaries, and long-term scalability. Managed a cross-functional team of 12+ engineers, fostering strong engineering practices and consistent delivery. Improved frontend performance by ~35% through optimized state management and modular UI architecture. Reduced deployment time by ~40% by redesigning CI/CD pipelines and infrastructure using Terraform. Evaluated and eliminated inefficient internal systems, saving 15–20 engineering hours per week. Built and maintained full-stack features using React and Node.js in a high-availability production environment.

Senior Full-Stack Developer at VoCoVo

January 1, 2019 - January 1, 2020

Architected and developed a real-time communication and reporting system used by 20,000+ retail staff. Designed event-driven systems handling millions of daily messages with low-latency requirements. Reduced real-time data latency by ~50% through optimization of MQTT and WebSocket communication. Built scalable data visualization tools contributing to significant business growth and platform adoption. Ensured system reliability and scalability through thoughtful architectural decisions and performance tuning.

Full-Stack Developer at Backbase

January 1, 2016 - January 1, 2019

Developed core features for a global digital banking platform serving millions of users. Built a reusable component system (100+ React components) improving development efficiency and consistency. Improved backend performance by ~20% through optimization strategies and efficient data handling. Collaborated across design and engineering to deliver complex, high-quality financial interfaces.

Software Engineer at Coolblue

September 1, 2013 - January 1, 2016

Contributed to a high-traffic e-commerce platform serving 2M+ monthly users. Improved conversion rates by ~5% through optimization of checkout and product flows. Reduced frontend load times by ~25% using modern JavaScript and performance best practices. Introduced automated testing (Jest), reducing post-release defects by ~15%. Delivered 30+ features across frontend and backend systems.