Michael is available for hire
Hire MichaelMichael Salim
Verified Expert in Engineering
Full-stack Developer
Newcastle upon Tyne, United Kingdom
Toptal member since July 20, 2020
Bio
Michael is a full-stack developer with 11 years of professional experience and a sweeping range of technology skills. He has built a wide variety of web and mobile applications, such as manufacturing simulators, eCommerce, HR systems, games, and religious study tools. Michael loves to create and innovate software solutions, welcomes challenges, and views imagination as the only limit.
Portfolio
Retrace Software
TypeScript, Front-end, Python, React, APIs, API Integration...
Airfinity Limited | Freelance
JavaScript, TypeScript, React, Next.js, Create React App, CI/CD Pipelines...
Cimlogic
Windows Server, .NET, Microsoft SQL Server, SQL, JavaScript, CSS, HTML, Node.js...
Experience
- JavaScript - 11 years
- Node.js - 9 years
- React - 9 years
- SQL - 6 years
- Linux - 4 years
- React Native - 4 years
- Docker - 3 years
- GraphQL - 2 years
Availability
Part-time
Preferred Environment
React, Node.js, TypeScript, Linux
The most amazing...
...thing I've developed is an internal management system that is fully integrated with fingerprint detection units.
Work Experience
Senior Software Developer
2023 - 2024
Retrace Software
- Designed and implemented the novel VS Code extension UI from scratch, making it compatible to run as a web application at the same time.
- Implemented a server orchestrator that serves the front end and a Docker container management system to run recordings.
- Architected the build system and automated CI/CD to get everything built up automatically.
Technologies: TypeScript, Front-end, Python, React, APIs, API Integration, Technical Leadership, Full-stack, REST APIs, Figma
Senior Front-end Developer
2020 - 2022
Airfinity Limited | Freelance
- Led the development of the leading COVID-19 dashboard trusted by the UK and Australian governments.
- Reduced page load duration from 22 seconds to under 1 second by implementing an incremental loading system.
- Created a web worker system, eliminating the screen freeze and unpleasant jitters.
- Streamlined a configuration system, allowing the team to move fast in the ever-changing landscape of COVID-19.
Technologies: JavaScript, TypeScript, React, Next.js, Create React App, CI/CD Pipelines, Performance, Big Data, Web Dashboards, Web Worker, Graphs, Storybook, Chakra UI, Context API, Web Development, APIs, NPM, Version Control, Cross-browser Compatibility, Front-end Development, Responsive Web Design (RWD), Testing, Payment Gateways, Stripe, Stripe API, API Integration, Technical Leadership, REST APIs, Front-end, Figma
Software Developer
2019 - 2020
Cimlogic
- Created a production line simulator, allowing tests to be efficiently designed to find bugs before they reached the production floor.
- Developed various tooling, which sped up a business process by 80% and guaranteed correctness.
- Identified a risk and acted upon it, saving the client several days of investigation in the manufacturing site.
Technologies: Windows Server, .NET, Microsoft SQL Server, SQL, JavaScript, CSS, HTML, Node.js, C#, Web Development, APIs, Version Control, Cross-browser Compatibility, Front-end Development, Responsive Web Design (RWD), Testing, Chrome Extensions, IndexedDB, API Integration, Full-stack, REST APIs, Front-end
Full-stack Developer
2018 - 2019
MI Promotional Sourcing
- Identified, fixed, and retrieved lost financial assets worth thousands of pounds that would have otherwise never been found.
- Reduced website loading time by more than 70%, improved the user experience, and significantly reduced development time.
- Integrated modern technologies and frameworks into the official website, massively decreasing the development time and cost to extend the website.
- Redesigned sections of the website, reducing user confusion and support tickets.
- Fixed most of the design problems and took the initiative to implement new features based on feedback from users.
Technologies: SQL, MySQL, React, JavaScript, CSS, HTML, Laravel, PHP, WooCommerce, WordPress, CSS Animations, Web Development, APIs, Version Control, Cross-browser Compatibility, Front-end Development, Responsive Web Design (RWD), Payment Gateways, API Integration, Full-stack, REST APIs, Front-end
Full-stack Developer
2017 - 2017
My Place Newcastle
- Delivered a website running serverless in the cloud. Managed deployment to minimize the amount of maintenance required.
- Fulfilled the hosting requirement and set up the website at no cost until a reasonable scale was reached.
- Created full admin access to the CMS operations for the client.
Technologies: Serverless, React, JavaScript, CSS, HTML, Aurelia, Context API, Web Development, APIs, Version Control, Cross-browser Compatibility, Front-end Development, Responsive Web Design (RWD), API Integration, Full-stack, REST APIs, Front-end
App Developer
2017 - 2017
Hippo Powerbank
- Consulted on and budgeted project plans for applications and internal systems, ensuring that all plans were achievable and profitable.
- Developed proprietary systems and tools that were integrated into the production pipeline for a hardware product. This included a cross-platform mobile application that was fully connected to the back end.
- Participated in designing, storyboarding, and specification testing to match client requests.
Technologies: REST APIs, React Native, APIs, Version Control, Front-end Development, API Integration, Full-stack, Front-end
Full-stack Developer
2014 - 2016
Indonufood
- Developed and maintained a responsive C# windows application, using WinForms and a WPF GUI library.
- Established a software update pipeline including the distribution method for .NET applications.
- Built an automated attendance system connected to custom hardware such as a fingerprint sensor.
- Performed validation and testing of a finished application, thereby achieving the client's objective. Documented notes and guides for further development and use.
- Designed and developed responsive web applications, web scraping for a variety of functions, and interactive websites.
Technologies: Node.js, Bootstrap, CSS, HTML, JavaScript, React, Windows Presentation Foundation (WPF), Windows Forms (WinForms), Visual Basic, C#, Redux, Web Development, APIs, Version Control, Cross-browser Compatibility, Front-end Development, Responsive Web Design (RWD), API Integration, Full-stack, Front-end
Experience
Recall: An Innovative Project Management Tool
https://recalllab.comA Next.js website to make project management easy, Recall shows tasks visually as a flow diagram making it easy to understand with a single glance.
I'm the founder and sole programmer of the site. My work includes creating the entire system, along with deployment and business strategy.
I'm the founder and sole programmer of the site. My work includes creating the entire system, along with deployment and business strategy.
MiTunes: Gift Code eCommerce
A WooCommerce-based website for selling gift codes. As a full-stack developer of this site, my work included phone and video verification to reduce the number of illegal transactions. I also developed and implemented a gift code eligibility process for automated gift code redemption, which I created later.
Web and Mobile App for Product Tracking
A pair of React and React Native apps for tracking sold phones. A product code and barcode are generated for each phone sold. These codes are tied to a tiered promotion system, incentivizing users and vendors to scan them in order to gain rewards. I was the sole developer of this project, collaborating with other departments as needed.
eCommerce App for a Coffee Chain
A React Native-based app for ordering coffee. I was the front-end developer of this app that accepts pickup orders and integrates them with another system, allowing each store to receive orders as necessary.
Timesheet Browser Extension for ConnectWise
A React-based web extension used to automate the timesheet entry process. I was the sole developer of the extension. Later, I worked with an engineer to integrate this with a gyroscope-based toy. This extension saved a few hours every week, allowing developers to spend more time on things that matter.
Internal Payroll System
A React and Node.js-based system integrated with a fingerprint detection unit. I was the full-stack developer for this system that automatically retrieves data from a fingerprint detection unit, allowing employees to see their expected salaries.
Beyond Stars: A Novel and Puzzle Mobile Game (Android)
An innovative Unity3D game that combines the visual novel and puzzle genres. I collaborated with a talented artist to bring exciting new gameplay to life. In addition to managing the project, I developed everything other than the graphics, including the sound.
The Last: A Survival Game Made in 48 Hours
https://vija02.github.io/LD39/A React-based game—including graphics, sound, and gameplay—I built during Ludum Dare 39, an online event where games are made from scratch over a weekend. The project includes a robust tile rendering engine powered with CSS Grid to show the power of the feature.
SourceMod with Discord Integration
A SourceMod with full integration to Discord bots. I was the full-stack developer for this project, in charge of creating custom commands and hooks between the two systems. This mod allows custom objects and skins to be used within the game.
Sunday Service Streaming Automation
https://github.com/Vija02/hope-leeds-automationA repository of packages helps automate producing a weekly video for Sunday services. The project was born when COVID-19 forced churches to stream their Sunday services online. I am the sole developer, collaborating with many volunteers who help with editing the videos.
MyWorshipList: A Website for Managing Worship Songs
https://myworshiplist.com/A PHP-based website that allows users to easily refer to worship songs for personal or congregational needs. I was the front-end developer working with another back-end developer on this project. I also worked on data collection and storage to make sure all the lyrics are accurate.
Open-source Note-taking Website for the Bible
A React-based website that helps users read and study the bible. I was the sole developer of this project including design, implementation, and maintenance. It's a side project that I developed in my free time.
DbSchemaLibrary
https://dbschemalibrary.com/A collection of over 500 database schemas you can use for your next project. Generate SQL that you can copy and paste directly to your migrations.
I developed the service from scratch, along with sourcing the entire database. This required me to understand various databases, frameworks, and understanding how to run them.
I developed the service from scratch, along with sourcing the entire database. This required me to understand various databases, frameworks, and understanding how to run them.
Skills
Libraries/APIs
React, Node.js, REST APIs, Context API, jQuery, Antd, Stripe, Stripe API, SendGrid API, Twilio API, Three.js, react-spring, PostgREST, React Redux, Windows Forms (WinForms), Web Worker, Konva, FFmpeg, WebExtensions API
Tools
Git, Adminer, Create React App, NPM, Docker Compose, Figma, Webpack, Canvas 2D, Amazon Simple Email Service (SES), Terraform, Prisma, NGINX
Languages
JavaScript, TypeScript, C#, SQL, CSS, HTML5, Markdown, HTML, PHP, Java, PL/pgSQL, GraphQL, Python, Visual Basic
Frameworks
React Native, Next.js, Express.js, Laravel, Lumen, Bootstrap, Tailwind CSS, Unity3D, Flutter, Cypress, Redux, .NET, Aurelia, Windows Presentation Foundation (WPF)
Paradigms
REST, Functional Programming, Object-oriented Programming (OOP), Responsive Web Design (RWD), Testing, Agile, DevOps, Azure DevOps, Automation
Platforms
Docker, Linux, Visual Studio Code (VS Code), Ubuntu, Arch Linux, Fedora, WordPress, Windows Server, WooCommerce, Amazon Web Services (AWS)
Storage
PostgreSQL, JSON, IndexedDB, MySQL, Backblaze B2, Amazon S3 (AWS S3), Microsoft SQL Server, SQLite, Databases
Industry Expertise
Project Management
Other
Web Scraping, Data Processing, Axios, Single-page Applications (SPAs), Web Development, APIs, Version Control, Cross-browser Compatibility, Front-end Development, Front-end, Chrome Extensions, Payment Gateways, API Integration, Technical Leadership, Full-stack, Time Management, Data Collection, Game Design, SaaS, Chakra UI, CSS Animations, Headless CMS, Overall Equipment Effectiveness (OEE), Data Visualization, Serverless, CI/CD Pipelines, Performance, Big Data, Web Dashboards, Graphs, VPS/VDS, Server Management, Interactive UI, Interactive UX, Monorepos, Apollo, Storybook, CSS Grid, Scripting
Collaboration That Works
How to Work with Toptal
Toptal matches you directly with global industry experts from our network in hours—not weeks or months.
1
Share your needs
Discuss your requirements and refine your scope in a call with a Toptal domain expert.
2
Choose your talent
Get a short list of expertly matched talent within 24 hours to review, interview, and choose from.
3
Start your risk-free talent trial
Work with your chosen talent on a trial basis for up to two weeks. Pay only if you decide to hire them.
Top talent is in high demand.
Start hiring