Hire the best JavaScript Developers in Missouri

Name: JavaScript developers
Brand: Upwork
Rating: 4.8 (140 reviews)

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Clients rate JavaScript developers

4.8/5

based on 140 client reviews

$50 hourly
Yunus O.
- 5.0/5
- (13 jobs)
More than 10 years of experience leading website design projects, including gathering user requirements, producing code, creating mockups, and enhancing designs. Solution-driven professional excelling in a highly collaborative work environment, finding solutions to challenges, and focused on customer satisfaction. Proven experience developing consumer-focused web sites using Wordpress, ASP.NET Web Forms, .NET Core, C#, HTML5, CSS3, Bootstrap, RESTful WebServices, AJAX, SQL, JSON, JQuery, and JavaScript. Responding to challenges by designing and developing solutions and building web applications aligned to customer's services. Translating solutions into code and working across many different APIs, third-party integrations and databases.

JavaScript
ASP.NET Ajax
ASP.NET Core
ASP.NET MVC
HTML
HTML5
WordPress
SQL
C#
CSS
$50 hourly
Syed Irfan Haider S.
- 5.0/5
- (7 jobs)
🏆𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 As a full-stack developer, I leverage a wide array of technologies to design and build best-in-class web and mobile applications. 🚀𝐖𝐡𝐲 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞: 🧑‍💻full Stack Expertise 👨‍💻Cross-Platform Skills 🤖 APIS & Databases 🌐 Responsive Design 🧑‍💻 DevOps Knowledge 👩‍💻 Continuous Learning 𝐌𝐲 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: ✅ HTML5 / CSS3 ✅ Javascript / Jquery / TypeScript ✅ Angular/React/Next/Vue ✅ NodeJS/ExpressJS ✅ Php / Laravel / Yii / CakePHP ✅ Python / Django / Flask ✅ Databases (MySQL, MongoDB, SQL Server) ✅ Chrome Extension Development ✅ Terraform/Jenkins/Server deployments/Kubernetes 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐒𝐤𝐢𝐥𝐥𝐬: 💻 Web Development 📱 React Native 🖥 Desktop Apps 🤖 Chatbots & APIs 👕 E-commerce Platforms 𝐏𝐫𝐨𝐣𝐞𝐜𝐭 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞: ⭐Web Applications ⭐SaaS Platforms ⭐Mobile Apps ⭐CMS Implementations ⭐Database Integration Let's discuss designing innovative full-stack solutions to solve complex problems and grow your business. I look forward to collaborating! Regards, Irfan Sherazi 𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬: PHP development, Laravel development, Symfony development, Python development, Django development, JavaScript development, React development, Angular development, Vue development, Node.js development, Next.js development, Full stack development, Frontend development, Backend development, Database management, MySQL, MongoDB, PostgreSQL, API development, RESTful APIs, GraphQL, Docker, Kubernetes, AWS, Heroku, Github, Version control, Agile methodologies, Scrum, Documentation, Offshore development, Website builds, E-commerce development, CMS development, Website maintenance, Hosting management, Shopify Development ,Webflow, Wordpess, DevOps, CI/CD.

JavaScript
TypeScript
Django
Next.js
Node.js
Generative AI
MEAN Stack
OpenAI API
React
DevOps Engineering
Laravel
Python
Vue.js
Angular
Front-End Development
$59 hourly
Isaac G.
- 5.0/5
- (4 jobs)
As a Full Stack Developer with expertise in both front-end and back-end solutions, I focus on writing clean, high-quality code and ensuring excellent user experience through responsive design, fast load times, and easy-to-use interfaces. I work with frameworks like React, Angular, and Node.js to build dynamic, interactive web applications. I’m passionate about delivering smooth, user-friendly experiences and efficient, scalable code. Whether it’s crafting intuitive interfaces or managing server-side logic, I enjoy tackling all aspects of development and collaborating with teams to turn ideas into reality. I’m committed to creating top-tier software and excited to contribute to teams that challenge me while delivering real value to clients.

JavaScript
Three.js
MongoDB
Web Application
HTML5
Web Development
AWS Lambda
CSS 3
Material UI
Angular
Vue.js
React
Node.js
TypeScript
$22 hourly
Michael K.
- 4.8/5
- (15 jobs)
Michael Kiger responds to messages and invitations to interview same day. Got a deadline? Need a quick fix or content update? Michael Kiger responds to inviations to interview and Upwork messages seven days a week including holidays. USA web developer since 2015. WordPress custom Ecommerce Shop page specialist. Affordable rates for website maintenance and SEO audits. Ask Michael Kiger about optimizing your WordPress or HTML website to improve possibility of website rankings and adding Schema Markup to improve search engine rich snippet search engine listings. GET STARTED with a basic SEO and page load speed optimization today. See Michael Kiger's Project Catalogue below. Specializing in SureCart & Woo Commerce Ecommerce Shop page customization. Have your SureCart & Woo Commerce Shop pages customized with WordPress Elementor. Building a new website? Rebuild? Michael Kiger specializes in Astra WordPress theme customization. Astra themes are some of the fastest loading website themes on the planet! Michael Kiger responds to messages and invitations to interview usually within one hour, seven days. Don't like hourly rates? Let's negotiate a flat rate or milestone payments for your project today! Affordable monthly rates for website management, updates, maintenance and minor content changes. Michael Kiger has managed a VPS since 2015. Michael Kiger is available to meet deadlines weekends and holidays! --FULL STACK WORDPRESS WEBSITE DEVELOPMENT SERVICES-- WordPress custom theme design, plugin and website optimization: Please provide website url for a guaranteed quote. New Website Builds Website Redesigns Website Changes Website Migrations Website Clone Website Optimization Mobile Responsive Ongoing Website Support: Keeping websites fast, secure, and updated. -- TECHNICAL SEO SERVICES -- Improve website page rankings with Wordpress SEO configuration and on-page schema markup JSON-LD format in compliance with schema.org schema formats. Disclamer: Use of Michael Kiger's services does not constitute any guarantees of profits, rankings or listings. Michael Kiger USA Web Developer websiteservices.online

JavaScript
SEO-Based Website
JSON-LD
SEO Audit
Ecommerce Website Development
Ecommerce Storefront Design
Ecommerce Website
Elementor
WordPress Customization
Schema Markup
WordPress Theme
Website Customization
WordPress Development
CSS 3
HTML5
$125 hourly
Michael H.
- 4.6/5
- (3 jobs)
As a visionary leader with a passion for challenges, I approach problems as opportunities for innovation. My extensive experience spans across enterprise mobile, cloud, desktop, and firmware software engineering, equipping me to spearhead developer teams and projects from inception to completion. I excel as a Solutions Architect, adept at crafting comprehensive enterprise solutions that encompass hardware specifications to rollout and ongoing maintenance. My commitment to mentorship and forward-thinking leadership ensures the continuous development of my teams and the cutting-edge solutions we deliver. • Demonstrated excellence in business communication, seamlessly integrating into client workflows to enhance collaboration and project outcomes. • Expertise as a remote software engineering and architectural consultant for various large clients, in multi-year contracts, showcasing a proven track record in delivering sophisticated solutions. • Highly proficient in developing Bluetooth Low Energy (BLE)-enabled applications for a broad spectrum of devices, including medical devices across class A, B, and C, IoT devices, automotive technologies, and home automation systems. • Native iOS development, leveraging Objective-C & Swift to implement Clean Architecture, Realm, RxSwift/RxCocoa, UIKit, Combine, CoreBluetooth, SwiftUI, and too many other frameworks to list. • Native Android development utilizing SDK & NDK (Java, Kotlin, C & C++), focusing on Clean Architecture, JetPack Compose, MVVM, and reactive programming frameworks (Rx, Kotlin Flow, LiveData), along with advanced techniques in multi-threading, localization, Bluetooth connectivity, cloud services, biometrics, barcode scanning, and RESTful APIs. • Deep knowledge in enterprise architecture and cloud micro-service solutions, encompassing cloud infrastructure administration, MERN & LAMP stacks, Python, PHP & WordPress, .NET Core, Spring Boot and others.

JavaScript
GStreamer
Firmware Programming
Mobile App
Database
Cloud Development
Embedded Linux
Bluetooth LE
Flutter
React Native
Python
C++
Java
Kotlin
Swift
$50 hourly
Kian M.
- 3.9/5
- (14 jobs)
Hi, I'm Kian! It's nice to meet you! I hate boring, repetitive work, and I'm sure you do too! Having to do the same thing over and over again is emotionally draining and hard. I'm a freelance developer and automation specialist with a passion for simplifying workflows and tasks, especially ones that integrate with Google Workspace or Google Cloud. Apps Script provides a quick, flexible, and powerful way to create automation that works with Google's services, as well as integrating with other platforms. I'm most proud of my ability to get up to speed very quickly. For a previous company, I learned their programming language of choice on-the-job, and was mentoring my coworkers within the first few weeks! Quick bit of humor: I loved taking apart electronics as a kid. I'd try to build robots, combine computers together to create more powerful ones, etc. I'd like to attribute my skills to an earlier experience, however. When I was 3 years old, I threw my parents' camera down the stairs. That moment started it all! :) Thanks for reading! Kian.

JavaScript
HTML
React
Automation
n8n
Google Sheets Automation
Google Sheets
Google Apps Script
Node.js
TypeScript
$80 hourly
Kevin H.
- 4.5/5
- (12 jobs)
I am a web and software developer with over 10 years of experience working in multiple programming languages and frameworks. I specialize in responsive and reactive applications that are both functional and appeasing to the eye. I focus on futureproofing your app by planning for scalability both in size of the customer-base and infrastructure changes needed in the future.

JavaScript
Network Engineering
Web Application
Information Security
Network Security
Web Server
Web Design
API Development
Website Redesign
SQL
PHP
Python
Web Service
API
$45 hourly
Anthony B.
- 5.0/5
- (14 jobs)
I'm an experienced web and software developer crafting beautiful software and cloud-based solutions for your business and life. Front-End Skills: *Angular *Bootstrap *SASS *Modern JS Back-End Skills: *Springboot *PHP *Java Specialties: *WordPress Databases: *SQL Scripting Language *MySQL *PHP My Admin *Relational Database Design Collaboration: *Github Cont. Integration *Github Actions *Jira Servers and Backends: *Hostgator *AWS *S3 *Azure

JavaScript
C++
Java
JSON
C#
GitHub
Bootstrap
Git
Angular
React
jQuery
MySQL
CSS 3
PHP
HTML5
$190 hourly
Eric L.
- 4.9/5
- (10 jobs)
Hello there! I’m an SEO Strategist and Digital Solutions Developer with over 15 years under my belt. I'm proud to be a Webflow Enterprise Partner and GA4 certified, and I believe that growth and learning are key to staying on top. One of my favorite success stories is how I helped a CBD/Wellness e-commerce client boost their monthly earnings from less than $10,000 to a whopping $600,000+! That's the power of tailored SEO and smart web development. I don’t really focus on one specific industry, but I have a knack for making a big splash in areas like CBD and wellness. For instance, I took that e-commerce site from about 50 daily visitors to over 4,000, and from just a few orders a day to over 700. How? By keeping up with the latest from Google, SEMRush, Ubersuggest, and more, always ready to adapt and innovate. Working with me is straightforward and fun—I make sure of it. I’m here to help you weave your digital tools into the very fabric of your business strategy, turning them into indispensable assets that drive your success. If you’re ready to turn your vision into reality and give your business a digital boost, why not drop me a message? Let’s make something great together!

JavaScript
Web Design
Webflow
Project Plans
Digital Strategy
Business Intelligence
Database
Web Development
Responsive Design
Website Redesign
WordPress
CSS
HTML
jQuery
$75 hourly
Ahsan S.
- 5.0/5
- (4 jobs)
Greetings! I'm Ahsan, a professional web developer with expertise in PHP, Laravel, and WordPress. I specialize in creating fully functional, responsive websites tailored to meet client needs. My approach combines clean coding, attention to detail, and a passion for delivering high-quality work on time. Key Skills: • Custom WordPress Theme & Plugin Development • PHP Web Application Development • Laravel MVC Framework • Responsive Frontend Development • API Integration & Development Services I Offer: • Full PHP Website Development • SEO-Friendly Sites • Frontend Modifications (HTML, CSS, Bootstrap) • Backend Development (PHP, Laravel, WordPress) • Responsive Design for All Devices • Custom WordPress Development • Google Maps & Social Media Integration • Bug Fixes & Performance Optimization • API Development & Integration • Web Scraping & Crawling • Database Integration Why Hire Me? • Professional and Responsive Service • Clean, Optimized, and Well-Documented Code • Excellent Communication Throughout the Project • Unlimited Revisions Until You're Fully Satisfied Let’s work together to bring your vision to life!

JavaScript
Node.js
Angular
React
WooCommerce
Laravel
Backup & Migration
Plugin Development
Bootstrap
HTML
Vue.js
Web Development
Ecommerce Website
Front-End Development
WordPress
$95 hourly
David P.
- 5.0/5
- (32 jobs)
Webflow Business Websites or Landing Pages that get results and are responsive for all devices; specialized in working with small organizations and solo-entrepreneurs. Solutions to common and advanced Webflow problems: *Clean, semantic HTML *Consistent, smart CSS classes with TailwindCSS-like system. *100% custom logic *Get around nested collection limits *Make sure performance is great for Google Lighthouse / Core Web Analytics *Double check technical on-page SEO *Defer scripts that degrade performance *Access API's and API Proxies *Eliminate the need for Zapier *Integrate forms with HubSpot and other such platforms *Add custom 3rd party services *Create JS animations / interactions *And much more... Additional capabilities: *Injected React for UI/UX heavy components and add automated testing pipeline *Webhooks and triggering workflows *Backend development With fullstack development experience gained from writing source code, I know custom HTML, CSS, JavaScript, jQuery, C#, React.js, Typescript definitions, and more. Why does that matter to Webflow? Many low-code/no-code designers have no idea how websites work under the hood. With my skills and experience, we can make the website go way beyond the native limitations of Webflow.

JavaScript
jQuery
Webflow
Graphic Design
Landing Page
React
Web Design
Zapier
Jotform
HubSpot
Mailchimp
$35 hourly
James P.
- 5.0/5
- (4 jobs)
Welcome to my profile! I'm an IT Specialist and Website Developer, as well as a Cloud Solutions Architect with a strong foundation in Computer Science and a passion for leveraging cutting-edge technologies to streamline operations and drive efficiency. My diverse skill set encompasses JavaScript, HTML5, CSS, Vue.js, and database administration, honed through hands-on certifications like IT Specialist in JavaScript, ActionScript, and Databases. As an AWS Academy Graduate, I bring expertise in Cloud Foundations, architectural design, and cloud computing, validated by certifications in Pricing Research. My proficiency extends to a wide array of tasks, from data entry and transcription to computer hardware installation and IT infrastructure management. With a knack for problem-solving and a commitment to staying updated with the latest tech trends, I'm dedicated to delivering top-notch solutions for your IT needs. Let's collaborate to optimize your systems and elevate your technological capabilities!

JavaScript
Linux
Microsoft Excel
IT Infrastructure
Computer Hardware Installation
Website Maintenance
SQL
Computer Hardware
Database Query
Computer Maintenance
Typing
Data Entry
Vue.js
CSS
HTML5
General Transcription
$35 hourly
Jeffrey B.
- 5.0/5
- (1 job)
Do you need a developer who is straight to the point? 🙋‍♂️ With 4 years of experience in the dev. world, I develop websites from scratch and utilize web-builder platforms (exp. webflow). Also, as a shopify expert I guarantee a fully operational store setup or 100% refund. Work that I do. * Website development & design * Logo Design * Shopify Store design & Setup * Shopify Account creation, format, & maintenance * Setting up Shopify apps and integrations Why choose me right? I specialize in the Shopify e-commerce platform, also in web development and design. I give a 100% free consultation to audit clients' needs. I'll guarantee you satisfactory or as I mentioned a 100% refund. I give daily updates on exact progress, and I will assist you and personally walk you through finished projects. What next? Please click the invite or hire button to conversate with me about a possible collaboration. we'll start the free consultation about what you need help with (no strings attached). Being detailed with what you want is very important, and regular communication is needed for the results you desire. It's a pleasure to meet you in advance!

JavaScript
Custom Ecommerce Platform Development
Shopify
Ecommerce Website
Ecommerce
Webflow
Liquid
Shopify Website Redesign
Set Up Shopify Site
Shopify Development
Web Design
Web Development
HTML
CSS
$95 hourly
KC F.
- 5.0/5
- (14 jobs)
I'm a researcher and artist that has been putting content on the internet for more than 25 years. I've completed many illustration commissions and design projects created to specification. I also have experience developing and managing web content across a variety of apps and platforms. Let's talk about how I can help deliver your vision, today.

JavaScript
Cartoon Art
Drawing
English
Sketching
Image Editing
React Bootstrap
React Native
CSS
React
HTML
Adobe Creative Suite
Illustration
Adobe Photoshop
$35 hourly
Aaron Y.
- 5.0/5
- (3 jobs)
I've been in the IT field for the past 10 years working in a wide array of environments. I incorporate scripting into my daily work to automate repetitive tasks. I've used Python, PowerShell, and Bash scripting. I create secure Windows and Linux server setups. I've setup and maintained virtual infrastructure with VMWare vSphere, oVirt, and HyperV. I've worked with various patch management and asset management software including PDQ, LanSweeper, and Shavlick. I'm a quick learner and hard worker.

JavaScript
System Administration
Hardware Troubleshooting
Server Virtualization
NodeJS Framework
HTML5
CSS 3
$50 hourly
Kate C.
- 5.0/5
- (6 jobs)
Do you need to quickly solve a technical challenge? Exploring and transforming data for your next big project? Or, maybe your team needs a data specialist to guide you to accurate and usable analysis? I’m here to help! I have the foundational knowledge to quickly onboard in nearly any software environment, but this is an example of what’s currently in my toolbox: - Programming Languages: Python, SQL, R - Software: Cloud Connections, Tableau, Excel - Methods: ETL, Statistic, Machine Learning & More I am an experienced consultant who has worked in a variety of fields. I look forward to working with you soon.

JavaScript
Technical Writing
Data Cleaning
Data Analytics & Visualization Software
Data Entry
Data Scraping
Data Migration
SQL
R
Natural Language Processing
Scala
Python
Data Science Consultation
Model Tuning
$150 hourly
Jonathan M.
- 5.0/5
- (9 jobs)
Hey there, My name is Jonathan and I offer services as a fractional CTO, full-stack developer, and personal privacy consultant. Let me tell you a little bit about how I got here... I've been working with the web stack since I was young but started out my career about 12 years ago when I started working with WordPress and front-end development. I was able to use those skills to land myself a job at a Silicon Valley tech startup as a front-end engineer. I worked across the web stack using the EmberJS and Rails frameworks. Eventually, I was offered a role as the CTO /technical co-founder of a Real Estate Tech startup. I jumped at the opportunity. It was there that I developed skills as a backend developer, infrastructure architect, and as well as a leader. I built our SAAS application from the ground up and worked across the stack implementing agile methodologies and business processes across multiple domains. We grew that company over the course of 4 years and successfully exited in 2021. After my exit, I stayed with the company leading development and product management. We grew the team from 2 developers to 7 and worked to scale the product and infrastructure. My work included scoping technical projects, leading daily standups, code reviews, creating and managing tickets, and holding interviews for both product and development. Currently, I work as a Fractional CTO. I use the skills I've learned to help bolster teams with a seasoned software development mind. My skills range from infrastructure to full-stack development, building development teams, leading a development team from the product or dev side. I also dive deep into the business side: setting up processes, implement best practices, reducing costs, and more. I specialize in taking products from 0 to 1 or idea to inception as well as jumping in to take over projects stuck in development hell in order to get them back on track so that they deliver on time and on budget.

JavaScript
Amazon S3
Laravel
Amazon EC2
PHP
DevOps
MySQL
IT Consultation
RESTful API
Amazon Web Services
React
Front-End Development
Git
Vue.js
SaaS
Bootstrap
HTML5
$80 hourly
Hardik P.
- 5.0/5
- (2 jobs)
With 15 years of extensive experience in software development, I am a seasoned Senior Full-Stack Engineer skilled in designing, implementing, and maintaining high-performance web applications. My expertise spans across both front-end and back-end technologies, empowering me to deliver seamless user experiences and robust server-side solutions. 📌 I am proficient in: Front-End Technologies: ✔ HTML5, CSS3, JavaScript (ES6+) ✔ Modern frameworks such as React, Angular, and Vue.js Back-End Technologies: ✔ Node.js, Express.js, Nest.js ✔ .NET Framework, ASP.NET Core ✔ Java, Spring Boot ✔ Python, Django, Flask ✔ Ruby on Rails Database Systems: ✔ SQL: MySQL, PostgreSQL ✔ NoSQL: MongoDB, Cassandra DevOps & Tools: ✔ Docker, Kubernetes ✔ CI/CD pipelines with Jenkins, GitLab CI ✔ AWS, Azure, Google Cloud Platform 📌 Key Achievements ✔ Successfully led the development of complex projects from concept to deployment while managing cross-functional teams. ✔ Improved application performance by over 30% through optimized code and database queries. ✔ Implemented cutting-edge security practices, ensuring data protection and compliance with industry standards. ✔ Mentored junior developers, fostering a collaborative and innovative work environment. 📌Core Competencies ✔ Strong problem-solving skills and an analytical mindset ✔ Excellent communication and collaboration abilities ✔ Passion for learning new technologies and staying updated with industry trends ✔ Dedication to writing clean, maintainable code with a strong focus on quality and efficiency I am deeply passionate about crafting impactful digital solutions that drive business success and looking forward to taking on challenging projects that push the boundaries of technology.

JavaScript
Django
C#
WordPress
Laravel
PHP
Python
Node.js
TypeScript
Tailwind CSS
Next.js
HTML
Vue.js
Angular
React
$70 hourly
Benjamin R.
- 5.0/5
- (8 jobs)
𝐑𝐞𝐚𝐬𝐨𝐧𝐬 𝐓𝐨 𝐡𝐢𝐫𝐞 𝐦𝐞 : ✅ Provide max quality with min supervision ✅ Delivering high-quality work that exceeds expectations ✅ Providing thorough explanations for any questions and offering suggestions for improving results ✅ Friendly demeanor and professional behavior With 10 years of experience, I'm a Senior React/Next.js/Node Engineer with a deep understanding of related technologies like Redux, GraphQL, and Tailwind CSS. My passion is building high-quality, user-friendly applications, and I stay up-to-date with the latest trends. I'm also a great communicator and leader, able to work collaboratively with teams to deliver exceptional results.

JavaScript
NestJS
Firebase
React Native
Redux
Bootstrap
Node.js
Material UI
HTML5
React
Web Application
CSS
Tailwind CSS
Next.js
TypeScript
$75 hourly
Dan S.
- 5.0/5
- (4 jobs)
- Results-oriented mindset & Collaborative mindset - Strong attention to detail & Excellent communication skills - Technical expertise with 10 years of extensive experience. As a Senior React/React Native Engineer, I am dedicated to revolutionizing user experience through the creation of cutting-edge applications that are both functional and aesthetically pleasing. With 10 years of experience in software development, I possess a deep understanding of the React and React Native frameworks, as well as expertise in Next.js, Gatsby, Redux, Redux-Saga, Tailwind CSS, Node.js, etc. Throughout my career, I have demonstrated a strong ability to develop and implement solutions that meet the unique needs of clients across a variety of industries. From conceptualization and design to coding and testing, I am committed to delivering high-quality work that exceeds expectations. I am also skilled in collaborating with cross-functional teams, managing projects from start to finish, and adapting to rapidly evolving technologies. At the same time, I am passionate about staying up-to-date with the latest trends and innovations in software development. Whether it's attending conferences or participating in hackathons, I am always seeking new opportunities to expand my knowledge and skill set. Ultimately, my goal as a Senior React/React Native Engineer is to create innovative applications that make a meaningful impact on people's lives. If you're looking for someone who can help take your software development projects to the next level, please don't hesitate to reach out.

JavaScript
CSS
Contentful
Tailwind CSS
Gatsby.js
Redux
HTML
Firebase
Node.js
Android App Development
React Native
React
iOS Development
$60 hourly
Louie S.
- 5.0/5
- (9 jobs)
✅10+ years of experience as a Full-Stack Software Developer, delivering engaging and scalable web applications. 🥇 Trusted by Hallmark Card, other international companies to develop innovative software solutions that drive growth. I use the latest technologies and tools to ensure that your website is fast, reliable, and user-friendly, such as: ✅ Front-end – React, React Native, Angular, Next, Vue, Nuxt ✅ Back-end – JavaScript/TypeScript, NodeJS, .NET ✅ AI Chatbot Specialist, ChatGPT API ✅ Infrastructure – Linux, Docker, AWS ✅ Databases – PostgreSQL, MongoDB, Redis, Elastic ✅ Experience with GitHub and Project Management tools e.g., Jira, ACE and Slack for communication. ✅ DevOps - CI/CD using Jenkins, Docker, Kubernetes etc. Over 10 years of experience in developing and implementing innovative software technology for both business process and technology based solutions which enable efficiency, speed, flexibility and reduction to cost and lead time; furthermore, driving process compliance and improvements through cross-divisional collaboration, decisions and strategies with the use of software technology development. Let's Connect: Tap the "Invite" button to discuss your project's specific needs and how we can collaborate effectively in a remote and global context.

JavaScript
.NET Core
ChatGPT API
Artificial Intelligence
DevOps
Docker
Amazon Web Services
API Integration
SQL
Full-Stack Development
C#
Next.js
Angular
Node.js
React
$78 hourly
Matthew L.
- 5.0/5
- (7 jobs)
New to Upwork not to Automation and Consulting IT professional with nearly three decades of experience creating automation tools for many dozens of notable enterprises such as J&J, United Airlines, Time Magazine, Pfizer, and NASA. My primary focus is now on AI automation workflow development and building intelligent conversational chatbots that drive efficiency, streamline operations, and enhance customer engagement. My background in desktop architecture and automation engineering has evolved to encompass advanced AI-driven solutions that cater to businesses aiming to leverage the power of automation for growth and scalability. Key Skills & Competencies: • AI Automation Workflows: Skilled in designing and implementing automation workflows that integrate seamlessly with existing business operations. I build solutions that handle complex tasks, from appointment scheduling with calendar integrations to workflow automation for content management and social media. • Conversational AI & Chatbot Development: Proficient in developing intelligent chatbots that support conversational interactions, allowing users to access information, complete tasks, and interact with businesses more effectively. Experienced with platforms like Chatbot Builder, Vapi, and custom prompt engineering for AI models like ChatGPT and Claude Sonnet. • Process Standardization & Desktop Automation: I bring over 20 years of experience in developing zero-touch deployment solutions and automated desktop management processes that ensure consistency, reduce operational costs, and improve productivity. Recent Projects & Achievements: 1. Independent AI Automation Consultant (2024 – Present) Delivered AI-powered automation solutions across multiple platforms, including custom assistants and voice chatbots. Projects have ranged from automated customer service bots to appointment-setting workflows, demonstrating a deep understanding of how to optimize user experiences through intelligent, data-driven conversations. 2. EUC Automation Engineer – Dell (2020 – 2023) Part of a small team focused on end-user computing automation. Successfully developed a patented Azure Intune readiness assessment tool using PowerShell and Graph API. Designed comprehensive reporting dashboards with Power BI, giving teams powerful insights from aggregated data across databases and platforms. 3. Senior Consultant (Dell EMC) Led chatbot and automation initiatives, designing in-house scheduling and task automation tools for enterprise clients. Recognized for modernizing server and desktop infrastructure through custom solutions that improve operational resilience and flexibility. Technical Skills & Tools: • AI & Automation Platforms: Chatbot Builder AI, Voiceflow, Make, Zapier, n8n • Programming & Scripting: PowerShell, Python, JavaScript, VBScript • Database & Data Management: SQL Server, MySQL, Airtable • IT Infrastructure: VMware, Hyper-V, Azure Intune, SCCM, Config Manager, Power BI Why Work with Me? With a focus on AI-driven workflow automation and chatbots, I help businesses transform complex, time-intensive processes into efficient, automated solutions. Whether you’re looking to build a conversational AI that enhances customer service or implement automated workflows that drive productivity, I bring a proven track record of creating scalable, results-driven solutions tailored to your needs. Let’s discuss how we can leverage AI to automate and streamline your operations, transforming how you engage with clients and manage workflows.

JavaScript
SQL
Chatbot Integration
Chatbot Flow Design
SQL Programming
Python
AI Chatbot
ChatGPT
Chatbot Development
Airtable
ElevenLabs
Conversational AI
Make.com
n8n
$100 hourly
David W.
- 5.0/5
- (5 jobs)
I'm a seasoned, senior game development executive with 36 years of industry experience, specializing in Unity game development and C# programming. My expertise spans from concept creation to live-service operations, making me an ideal partner for your game development projects. What I Offer: * Unity Game Engine Mastery: Deep expertise in both gameplay programming and rendering. * C# Programming Excellence: Over 23 years of experience crafting advanced game logic and tools. * Full-Stack Game Development: From frontend gameplay to backend systems and cloud integration. * Game Engine Development: Creator of HeroEngine, used in major titles like Star Wars: The Old Republic. * Cross-Platform Development: Proficient in developing for PC, mobile, and web platforms. * Shader and Compute Shader Programming: Optimize graphics and enhance visual effects. * Leadership and Project Management: Experienced in managing teams of up to 50 employees and 100+ contractors. Career Highlights: * Founded Simutronics Corp and Critical Thought Games * Shipped 15+ successful titles across various platforms * Pioneered online gaming with CyberStrike, the first online 3D action game * Created acclaimed mobile games like geoDefense, geoDefense Swarm, Lara Croft Relic Run and many more * Ported games to Unity, such as the famed Temple Run * Led projects such as SIEGE: World War II and GALAHAD 3093 Skills Include * Full Cycle product development from concept to publish (and live service thereafter) * High-Level Architecture * Scripting at all levels: game mechanics, visuals, systems, interactions with external services, etc. * Advanced Techniques: IK Systems, Procedural Motion, Effects, Custom Domain Specific Languages, Threading, ECS/DOTs, custom pathfinding, AI, etc. * Technical Art: Shaders / Compute Shaders, Graphics Optimization * Azure, AWS, Snowflake, various game backends PAS and other platforms * git, GitHub, Trello, Jira, various CI tools You name it, I've done it. And probably the guy who helped Unity get it right in the first place. Whether you need a complete game developed from scratch, technical problem-solving, or expert consulting on your existing project, I bring a wealth of experience and a track record of success to the table. Let's create something extraordinary together!

JavaScript
Game Development
Unity
Multiplayer
.NET Stack
TypeScript
Lua
Python
C#
Game Design
Artificial Intelligence
$44 hourly
Patrick S.
- 5.0/5
- (3 jobs)
Experienced Full Stack Developer with specializing in Python, Django, Node.js, and front-end technologies. Over the past 3 years, I contributed significantly to HubSpot's platform, including a comprehensive redesign of their website and improvements to backend infrastructure and architecture. My work helped optimize system performance and resolve complex architectural challenges, demonstrating my ability to deliver impactful solutions. In addition to my HubSpot contributions, I have extensive experience in building scalable, full-stack solutions using frameworks like Flask, GraphQL, and Django. My portfolio includes notable projects such as developing advanced cold email automation features, Salesforce-integrated CRM solutions, and responsive website redesigns. These projects highlight my technical expertise and adaptability across various domains. I bring a strong focus on UX/UI design, data visualization, and CMS development, combined with in-depth knowledge of integrating tools like HubSpot and Salesforce. My commitment to delivering user-friendly, high-performance applications ensures successful project outcomes for diverse business needs. With a proven track record of solving complex problems, I am confident in handling projects of any scale and delivering exceptional results.

JavaScript
Fastify
Data Analytics & Visualization Software
D3.js
Email Automation
Full-Stack Development
Elasticsearch
Node.js
Marketing
TypeScript
React
Email
CRM Development
Django
Python
$45 hourly
Jordan M.
- 5.0/5
- (1 job)
I am a Flutter and React Native developer with a passion for building smooth, high-performance mobile apps. I have rich experience creating cross-platform apps for Android, iOS, Desktop and even web using Flutter and React Native. Whether it's a simple app or a complex, feature-rich product, I can bring your idea to life perfectly. ⚡ Flutter & React Native Skills - Flutter Framework – Strong understanding of widgets, state management, and navigation - React Native – Building cross-platform apps using React Native and JavaScript/TypeScript - Dart & JavaScript/TypeScript – Proficiency in both languages for Flutter and React Native development - State Management – Provider, Riverpod, Bloc, Redux, GetX, MobX (Flutter) / Redux, Context API, Zustand, Recoil (React Native) - UI/UX Design – Experience in building responsive and adaptive UIs with Material Design, Cupertino widgets (Flutter), and React Native components - Animations – Creating smooth animations using Flutter’s built-in animation framework and React Native’s Animated API, Reanimated ⚡ Backend & APIs - RESTful APIs & GraphQL – Fetching and handling data from APIs - Firebase & Supabase Integration – Authentication, Firestore, Cloud Messaging, Realtime Database, Storage - Custom Backend Development – Node.js, Express.js, NestJS, Django, FastAPI, Laravel - Database Management – Supabase, MongoDB, MySQL, PostgreSQL, SQLite - Authentication – Social authentication, Email & Password authentication ⚡ Platform-Specific Skills - Native Code (Kotlin, Swift, Java, Objective-C) – Basic knowledge for native integrations in both Flutter and React Native - Bridging & Native Modules – Connecting Flutter/React Native with native code for advanced functionality - Platform Channels & React Native Modules – Communicating with native Android and iOS code ⚡ Deployment & CI/CD - App Store & Google Play Store Deployment – Knowledge of app submission process for both frameworks - CI/CD Pipelines – Using GitHub Actions, Codemagic, Bitrise, and Fastlane for automated builds

JavaScript
PostgreSQL
SQLite
MySQL
MongoDB
Laravel
Django
Node.js
TypeScript
Supabase
Firebase
Dart
React Native
Flutter
$115 hourly
Isaac J.
- 5.0/5
- (95 jobs)
🌟 Expert-Vetted Talent - Recognized in Upwork's top 1% of Talent ✅ Established Track Record of Hours and Earnings 🚀 Fastest Response Times 💯 100% Job Success Awarded by Clients 🔝 Top Rated Plus by Upwork, Freelancer and Agency 🔎 Searching for New Opportunities and Problems to Solve Hello and welcome, thank you for considering me for your project. My Upwork profile’s stats clearly demonstrate both my expertise and the value I add to every team that brings me on. The thousands of hours clocked on this platform alone speak to my years of experience in Software Development, and the total earnings shows a glimpse of how valuable that time has been for clients. I am available and ready to answer specific questions about your project’s current problem, next opportunity, or my fit for it. Shall we get to work? Send a message or an invite now and I will be right with you. 𝐖𝐡𝐲 𝗖𝗹𝗶𝗲𝗻𝘁’𝘀 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞: 1. 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 𝗮𝗻𝗱 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: Decades of experience bring a deep understanding of various languages, frameworks, platforms and tools, common and uncommon pitfalls, and alternative solutions. 🗯️ “He was very responsive to our messages and explained what was needed in our project clearly. He is definitely an expert in his work.” 2. 𝗘𝗳𝗳𝗲𝗰𝘁𝗶𝘃𝗲 𝗣𝗿𝗼𝗯𝗹𝗲𝗺 𝗦𝗼𝗹𝘃𝗶𝗻𝗴: I have a proven track record and knack for solving complex problems and providing customized solutions for specific business needs and challenges. 💭 “Isaac was able to quickly discern what I needed and delivered…” 3. 𝗦𝘆𝘀𝘁𝗲𝗺 𝗩𝗶𝗲𝘄 𝗮𝗻𝗱 𝗖𝗼𝗺𝗽𝗿𝗲𝗵𝗲𝗻𝘀𝗶𝗼𝗻: Years of experience and diverse projects have helped me accumulate a broad set of skills and tools. I use this experience to the advantage of my client’s projects in not only accomplishing tasks, but in advising and consulting on potential challenges and opportunities. 💬 “LIFE SAVER!!! I have now use(d) Issac for two separate jobs now and will be bringing him on for some regular hours. Hopefully we get some funding and I can do even more with him. GREAT DEVELOPER” 𝐌𝐲 𝐂𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: Python|Django|PHP | MySQL | Laravel | WordPress | CodeIgniter | ExpressionEngine | CSS | HTML | JavaScript | Express.js | React.js | Bootstrap | PostgreSQL | NoSQL | Linux | Apache | Nginx | API | Git | SVN | Amazon Web Services | AWS EC2 | 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝗜 𝐎𝐟𝐟𝐞𝐫: 𝐅𝐫𝐨𝐧𝐭 𝐚𝐧𝐝 𝐁𝐚𝐜𝐤-𝐄𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: Planning, Design, Documentation, Coding, Testing, Debugging, Deployment, Monitoring, and Maintenance. 𝐒𝐲𝐬𝐭𝐞𝐦 𝐀𝐝𝐦𝐢𝐧𝐢𝐬𝐭𝐫𝐚𝐭𝐢𝐨𝐧: Cloud infrastructure Design, Deployment, Optimization, Maintenance, Scaling, Recovery and Backup, Troubleshooting, and Cost Management. 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 Management: Architecting, Optimization, Monitoring, Recovery, Updating, and Merging. 𝐏𝐫𝐨𝐣𝐞𝐜𝐭 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭: Planning, Project Requirements, Task Detailing, Developer Support and Feedback, Problem Resolution, Progress Monitoring, Qualification Testing, and Stakeholder Communication.

JavaScript
Java
jQuery
Amazon EC2
Unix System Administration
SOAP
CodeIgniter
IBM Informix
Linux System Administration
Laravel
Database Design
Node.js
RESTful API
Database Architecture
PostgreSQL
Python
CSS
Web Development
Amazon Web Services
React
API
PHP
MySQL
$40 hourly
Monique R.
- 5.0/5
- (9 jobs)
I'm an articulate, proactive, and intelligent professional and student earning my Bachelor's in English via Arizona State University's online program. I am a native English speaker, read at a speed of 400+ WPM, and type at a speed of 90+ WPM. I graduated Coding Dojo's full-time, immersive, 60+ hours/week web development bootcamp in February of 2022. I have a passion for web development in all forms, and I possess a strong drive and the ability to learn new technologies quickly. This is evidenced both by my recent (01/2023) completion of a certificate in WordPress through StackSkills, as well as my aforementioned graduation from the coding bootcamp. These experiences have allowed me to gain knowledge in full-stack JavaScript, Java, and Python (as well as the associated libraries and frameworks, including but not limited to React.js, Node.js, Flask, etc.), basic database experience (MySQL and MongoDB), capabilities in front-end technologies such as HTML5 and CSS3, and basic WordPress design, development, and maintenance. I have additional experience specifically using the Elementor theme in WordPress. I'm a capable writer of both articles and creative fiction, and I'm eager to delve more into content writing and blogging. I'm comfortable both writing from scratch as well as using AI writing tools such as ChatGPT, Jasper AI (formerly Jarvis), and Sudowrite. Along the lines of AI writing, I have been delving deep into the prompt engineering space since ChatGPT launched near the end of 2022. I've taken Udemy courses, read books and articles, watched countless YouTube videos, and experimented with many of the cutting-edge tools in this rapidly growing space. I consider myself an intermediate-level prompt engineer for LLMs at this point, and a beginner-level prompt engineer for image models such as DALL-E 2 and Midjourney. For my marketing capabilities, I have two years of experience in the social media marketing space, primarily working on Instagram with a focus on influencer scouting and management. I continue to level up my knowledge with free courses available on the internet. Please feel free to contact me if you have any questions about my qualifications, experience level, or capabilities. I look forward to hearing from you, and hope that we can develop a solid, long-term working relationship. Thank you for your time and consideration!

JavaScript
Customer Support
Social Media Marketing
Elementor
Web Design
Creative Writing
Customer Engagement
Influencer Marketing
Writing
Full-Stack Development
CRM Software
Web Development
WordPress
CSS 3
HTML5
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