Hey! I'm Adam Sims

I'm a Full-Stack JavaScript Developer.

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Specialized in creating clean, responsive user interfaces using React, Next.js, Astro, and Svelte, and with a strong command of Node.js. I enjoy solving complex problems by combining creativity with technology, always striving to create impactful, real-world solutions. I thrive on learning new technologies and adapting to new challenges, ensuring that I can provide the best possible solutions to my clients.

Where I've worked

  • Full Stack Developer · Clearly Innovative

    USA, Remote | -

    At Clearly Innovative, I led the transition of a content-heavy blog platform from Angular to Remix. Later, I helped build a cross-platform application for MLSPA, integrating React Native and TypeScript to create player profiles and statistics. On the backend, I extended Payload CMS with localized APIs and authentication via AWS Cognito and Auth0, ensuring security at scale.

    This role deepened my appreciation for accessibility, modular architecture, and testing strategies using Jest.

    Angular Remix React Native TailwindCSS Node.js MongoDB PostgreSQL Prisma Payload CMS TypeScript
  • Freelance Web Developer · SERP AI

    USA, Remote | -

    Transitioning into freelance web development with SERP AI, I worked on projects that allowed me to wear multiple hats, from designing to deploying. One of my most rewarding projects was leading the development of an SEO-optimized blog platform built with Astro and Tailwind CSS. The goal was to create a fast, scalable blog that would perform well both for users and in search rankings. I learned a lot about building fast static websites and the importance of SEO best practices.

    Additionally, integrating Stripe for payments and setting up backend content structure using Django and GraphQL gave me deeper experience in integrating third-party services while focusing on a seamless user experience.

    Astro TailwindCSS Django GraphQL RestAPI Docker AWS
  • Full Stack Developer · ERS IT Solutions

    Ontario, Canada | -

    At Mindshape, I worked on internal analytics tools where backend reliability was crucial. I built microservices using NestJS and Flask that communicated through message queues, designed for high throughput and fault tolerance. To improve API responsiveness, I used Redis caching and asynchronous task handling. On the front-end, I explored a new design system using Svelte and Astro.js, learning to balance UX with performance. Collaborating with the DevOps team, I helped containerize these services using Docker and orchestrate deployments with Kubernetes.

    What made this role special was the balance between technical depth and team culture—we shared ideas openly, supported each other across sprints, and celebrated small wins together.

    Astro Svelte NestJS Flask Stripe Twilio Docker Kubernetes Redis Swagger Asana Communication
  • Full Stack Developer · ERS IT Solutions

    Dublin, Ireland | -

    Joining ERS IT Solutions, I worked on modernizing a large-scale enterprise SaaS product. My primary role involved rewriting complex UIs in Angular 2+ and optimizing state logic with NgRx. On the backend, I participated in refactoring the monolith by introducing DynamoDB via Dynamoose and designing a clean architecture with GraphQL and NestJS.

    This project was my first experience designing APIs for large distributed teams and enforcing strict accessibility standards (WCAG 2.1) across the app.

    Angular NgRx Svelte AWS DynamoDB NestJS GraphQL RestAPI WCAG2.1 Jasmine Protractor
  • Full Stack Developer · SLK Software

    Amsterdam, Netherlands | -

    I began my development career at SLK Software, where I learned the fundamentals of building reliable web apps. I contributed to both frontend and backend development using JavaScript, jQuery, and ASP.NET MVC under senior guidance. This experience gave me hands-on exposure to writing clean SQL queries, using version control effectively, and participating in agile workflows.

    Looking back, this role helped me build the foundation of discipline, attention to detail, and code hygiene that I still apply today.

    HTML5 CSS3 JavaScript jQuery Angular C# ASP.NET MVC MySQL Jira

Some of my favorite projects

  • My Room In 3D

    🛏️ A (quite a bit more) fancy replica of my room.

    This project was my entry to the 9th edition of challenges organized by Bruno Simon for the students of his Three.js Journey course. The theme was Isometric Room. Despite having just purchased the course when the challenge was announced, I decided to participate.

    • ThreeJS
    • TypeScript
    • Blender
    • Git
    Preview of the project "My Room In 3D"
  • Pixel Art Together

    🎨 A collaborative pixel art editor.

    This project is a collaborative pixel art editor that allows users to create and edit pixel art together in real-time. It features a user-friendly interface, allowing users to easily select colors and tools, and a collaborative canvas that allows multiple users to work on the same image simultaneously.

    • SvelteKit
    • Liveblocks
    • TailwindCSS
    • TypeScript
    Preview of the project "Pixel Art Together"

See more of my projects in the archive

A little more about me

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At Work

With nearly 9 years of coding experience, I approach my work with a careful attention to detail and a diligent attitude. Through collaborative projects in college, I've become well-versed in teamwork settings, although I'm equally comfortable and productive working independently.

I like automating tasks, especially when efficiency is key. This habit aligns well with my current career focus on backend and cloud engineering, as I enjoy building systems that make work easier and faster for everyone.

My approach with code
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My personal side

The 3 words that best define me are resilient, optimistic, and independent. It's hard for me to give up on something I've set my mind to, and I always try to bring a positive outlook to every situation.

I've always been naturally curious, looking not only to learn new things, but also to understand them. That's why I love asking questions and figuring out how things work.

Pizza Emoji

Love Pizza

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Love Dogs

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Love Games

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Location

Based in Amsterdam

NaNh NaNm behind you

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Education

  • Bachelor's Degree in Computer Science
    Amsterdam, Netherlands | -

    Graduated from the University of Amsterdam, where I gained a comprehensive understanding of the theoretical and practical aspects of my field. This included not only software development, but also algorithms and data structures, systems architecture, databases, and other relevant areas.

Shoot me a message

Contact me at any moment.

Whether you have a question, a project in mind or just want to say hi, you can reach me at: adamsims1203@gmail.com

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