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Hi, I’m Peter Mulligan, a self-guided backend-leaning full-stack developer based in Schiedam, Netherlands. I have 7+ years of professional experience building and operating web applications and SaaS products, primarily in startup and scale-up environments. I have a strong Node.js and TypeScript background and own end-to-end systems: architecture, implementation, deployment, and long-term maintenance. I thrive at parachuting into existing codebases, unblocking teams, and delivering under real constraints rather than pursuing greenfield ideals. I enjoy implementing systems that improve developer experience, writing technical articles, and learning new programming paradigms and patterns. Personal motto: 'I just like to build things.'…Hi, I’m Peter Mulligan, a self-guided backend-leaning full-stack developer based in Schiedam, Netherlands. I have 7+ years of professional experience building and operating web applications and SaaS products, primarily in startup and scale-up environments. I have a strong Node.js and TypeScript background and own end-to-end systems: architecture, implementation, deployment, and long-term maintenance. I thrive at parachuting into existing codebases, unblocking teams, and delivering under real constraints rather than pursuing greenfield ideals. I enjoy implementing systems that improve developer experience, writing technical articles, and learning new programming paradigms and patterns. Personal motto: 'I just like to build things.'

Peter Mulligan

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

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Hi, I’m Peter Mulligan, a self-guided backend-leaning full-stack developer based in Schiedam, Netherlands. I have 7+ years of professional experience building and operating web applications and SaaS products, primarily in startup and scale-up environments. I have a strong Node.js and TypeScript background and own end-to-end systems: architecture, implementation, deployment, and long-term maintenance. I thrive at parachuting into existing codebases, unblocking teams, and delivering under real constraints rather than pursuing greenfield ideals. I enjoy implementing systems that improve developer experience, writing technical articles, and learning new programming paradigms and patterns. Personal motto: 'I just like to build things.'…Hi, I’m Peter Mulligan, a self-guided backend-leaning full-stack developer based in Schiedam, Netherlands. I have 7+ years of professional experience building and operating web applications and SaaS products, primarily in startup and scale-up environments. I have a strong Node.js and TypeScript background and own end-to-end systems: architecture, implementation, deployment, and long-term maintenance. I thrive at parachuting into existing codebases, unblocking teams, and delivering under real constraints rather than pursuing greenfield ideals. I enjoy implementing systems that improve developer experience, writing technical articles, and learning new programming paradigms and patterns. Personal motto: 'I just like to build things.'

Available to hire

Hi, I’m Peter Mulligan, a self-guided backend-leaning full-stack developer based in Schiedam, Netherlands. I have 7+ years of professional experience building and operating web applications and SaaS products, primarily in startup and scale-up environments. I have a strong Node.js and TypeScript background and own end-to-end systems: architecture, implementation, deployment, and long-term maintenance.

I thrive at parachuting into existing codebases, unblocking teams, and delivering under real constraints rather than pursuing greenfield ideals. I enjoy implementing systems that improve developer experience, writing technical articles, and learning new programming paradigms and patterns. Personal motto: ‘I just like to build things.’

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Work Experience

Freelance Web Developer at Upwork

January 1, 2021 - Present

Designed and implemented full-stack web applications and SaaS platforms using React, Node.js, Next.js, Nest.js, Laravel, PostgreSQL, Firebase, and cloud infrastructure. Served as lead architect and technical lead, defining system architecture, tech stack, deployment pipelines, and coding standards. Implemented post-launch integrations multiple times. Led small teams, mentoring developers and coordinating end-to-end project delivery. Built complex creator platforms using Stripe Connect. Managed project lifecycles from requirements gathering to deployment and maintenance, ensuring high-quality solutions delivered on time. Created platforms serving thousands of active users, optimizing performance, scalability, and maintainability. Quickly adopted new frameworks, APIs, and tools to meet client needs and tight deadlines.

Lead Engineer at Prep Sheets

January 1, 2021 - November 1, 2021

Created a hybrid full-stack mobile application using Angular, Capacitor, and Firebase for workers in the cosmetics industry. Implemented a creator platform using Stripe Connect.

Lead Engineer at Glamure Cosmetics

January 1, 2020 - January 1, 2021

Created a hybrid full-stack mobile application using Angular, Capacitor, and Firebase for workers in the cosmetics industry. Full end-to-end ownership of the product. Implemented a creator platform using Stripe Connect. Built a custom online booking feature.

VR & SaaS Developer at Engage XR

October 1, 2018 - December 1, 2019

Developed VR servers and SaaS interfaces, transitioning from game development to web technologies. Learned full-stack web development rapidly, contributing to internal and client-facing projects. Received training in Test Driven Development and SCRUM/Agile processes.