Hire the best JavaScript Developers in South Dakota

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$90 hourly
Joshua C.
- 5.0/5
- (2 jobs)
I’m a senior full-stack software engineer with 10+ years of experience architecting and delivering complex web applications across saas, fintech, e-commerce, AI, and Web3. I specialize in backend development, with deep experience building scalable APIs, microservices, and cloud-native systems — but I’m just as comfortable implementing clean, performant UIs. 💼 What I Bring to the Table: • 🧠 Backend Expertise: REST & GraphQL API design, event-driven architecture, distributed systems, authentication flows, database design (SQL & NoSQL), performance optimization. • 🌍 Frontend Fluency: Built and maintained modern SPAs using React, Angular, and Vue — ensuring responsive, accessible, and testable UI components. • ☁️ Cloud & DevOps: Hands-on with AWS, GCP, Azure. Built CI/CD pipelines, containerized apps with Docker, and orchestrated deployments using Kubernetes. • 🧰 Tech Stack Highlights: Node.js, Python, Go, C#, React, TypeScript, Angular, Vue.js, PostgreSQL, MongoDB, Redis, Docker, Kubernetes, Firebase. 🎯 My Approach: I take a product-minded approach to engineering — I focus on business goals, not just tickets. I collaborate closely with cross-functional teams, advocate for code quality and scalability, and adapt quickly to changing priorities. 🔐 Industries Served: Fintech (payments, lending, identity), E-commerce (cart systems, inventory, analytics), and Emerging Tech (AI, blockchain apps, smart contracts). Let’s connect if you need a reliable, versatile engineer who can jump into any part of the stack and deliver high-impact results.

JavaScript
C#
Golang
Node.js
Python
React
TypeScript
Artificial Intelligence
Blockchain Architecture
NFT
Web Development
$50 hourly
Karen A.
- 5.0/5
- (22 jobs)
🌟 Welcome! 🌟 👋 Hey there! I'm Karen Antijunti, the proud owner of PPwix Website Services. With over 30 years of experience in web development, I specialize in crafting top-notch WordPress, Custom, and other Platforms for websites and providing a wide range of other web solutions. 💼 In addition to running PPwix Website Services, I freelance outside of my business, which is why I'm here on Upwork, ready to bring my expertise to your projects. 💻 As a seasoned web developer, I excel in various technologies, including PHP, MySQL, CSS, HTML, and JavaScript. Whether you need troubleshooting, plugin customization, a sleek design, or seamless functionality, I've got you covered. 🔒 Worried about security? Don't be! I offer secure web server hosting, email hosting, domain purchasing, SSL certificates, and credit card processing to ensure your website and data are safe and protected. 🎨I believe in delivering designs that not only look great but also perform flawlessly. My design process is fast, efficient, and guaranteed to meet your satisfaction. Your website is in good hands with me! 🚀 Ready to take your online presence to the next level? Let's chat and discuss how I can elevate your business or project with a stunning website and reliable web solutions. Get in touch today and let's make your digital dreams a reality!

JavaScript
Vtiger Development
AJAX
phpMyAdmin
WordPress Plugin
SQL
HTML5
PHP
WordPress
CSS 3
$57 hourly
Brandon M.
- 4.5/5
- (114 jobs)
I attended an outstanding school, recognized as one of the top technical colleges in the nation, where the primary programming language was Java. Additionally, I gained proficiency in PHP, MySQL, Visual Basic, ASP, Content Management Systems like WordPress, Joomla, and Drupal, Web application security, and several other languages utilized in the field. I continued my education at a four-year college before transferring to another four-year institution. I completed most of the programming and computer classes and had about a year remaining before life circumstances prevented me from finishing my degree. I am committed to lifelong learning, consistently updating my web development and programming skills through online platforms such as Udacity, Free Code Camp, Code Academy, and Udemy. I believe in the importance of continuous learning and strive to acquire new knowledge daily, while pursuing my dream of working with computers. - Recently, I have been engaged in: - Web Development - Domain Transfers - Google Workspace Setup - Site Transfers - Site Backups - Website Fixes - Cloudflare CDN Setup - Speed Improvements - Mobile Responsiveness - Google Cloud Server Setup - AWS LightSail/EC2 Server Setup - Hacked WordPress Sites - SEO (Search Engine Optimization) I am currently enhancing my design skills through various courses.

JavaScript
Web Development
PHP
C++
Java
Data Entry
MySQL
HTML
Website Migration
jQuery
Android
WordPress
Database
CSS
Bootstrap
$200 hourly
Robyn H.
- 4.8/5
- (130 jobs)
Luxury branding and graphic design services for upscale brands with a taste for outstanding quality and traditional aesthetics. I don’t believe in following trendy, highly graphic styles in branding. I find the art of typography deeply intriguing and typically is something my clients find to be an area of interest as well. By sticking with traditional typographic design and staying true to all things simple and elegant, my clients are able to focus on promoting their business in exquisite, refined spaces. BRAND IDENTITY -- I work with my clients to develop full branding suites with styles ranging from editorial to contemporary/modern. My brand suites are built upon traditional design principles inspired by block prints, printing presses and above all: the handwritten letter. I deeply believe your branding should feel familiar, like home, and aim to evoke this essence in each project we work on. Emphasis on: Logos / Favicons / Print Labels / Color Study / Typography / Moodboards / Mockups GRAPHIC DESIGN -- I offer supporting services for brands by creating digital and print collateral for various needs. Past projects include: catalogs, trade show displays, window signage, print labels, stationary and more. I am also able to provide creative consulting on an ongoing basis to make sure your brand is displayed on all channels appropriately, and consistently. Emphasis on: Lookbooks / Catalogs / Signage / Stationery / Business Cards / Event Promotion / Marketing and Retail Collateral / Social Media Graphics / Canva Templates / Advertisement Design

JavaScript
ChatGPT
Squarespace
Web Content Strategy
Web Development
HTML
CSS
Shopify Plus
Front-End Development
UX & UI
Shopify Theme
Creative Direction
Shopify Templates
Shopify
Web Design
$20 hourly
Alexander T.
- 4.5/5
- (7 jobs)
Self-motivated Full Stack Developer, currently active duty Air Force working in Avionics, aiming to leverage my HTML, CSS, JavaScript, Node.js, React, and MySQL skills in freelance web development roles. Combining my military-honed discipline, fast-paced project-handling abilities, and passion for exploring new technologies to create innovative and engaging web experiences. - I am experienced in creating full stack web applications from the ground up, utilizing modular and maintainable code.

JavaScript
PostgreSQL
Full-Stack Development
API Integration
Website Optimization
Web Development
Tailwind CSS
Node.js
React
HTML
Git
Front-End Development
Bootstrap
Responsive Design
$45 hourly
Evan C.
- 0.0/5
- (1 job)
I'm a software developer who specializes in CAD automation and full stack development. I create software that helps make your workflow more efficient by leveraging API functionality in your CAD software. I also provide CAD software products that are available for download through draftingextensions.com.

JavaScript
Golang
JSON
XAML
Web Server
Linux
C#
CSS
HTML
SQL
API
Autodesk AutoCAD
SolidWorks
CAD
$32 hourly
Collin T.
- 0.0/5
- (0 jobs)
I'm a highly motivated developer with a strong foundation in full-stack development and a passion for Agile methodologies. I excel in JavaScript and Java, bringing practical experience in web design and a keen understanding of software development lifecycles. While new to freelancing on Upwork, I'm eager to collaborate with clients, contribute to innovative projects, and deliver high-quality solutions. I'm a strong advocate for effective communication, continuous improvement, and collaborative teamwork, with a solid understanding of Scrum principles. Key Skills: Programming Languages: HTML, SCSS/CSS, JavaScript/TypeScript, Java Web Development: HTML, CSS, Astro.js, React, SEO Agile Methodologies: Scrum, Kanban Communication & Collaboration: Excellent interpersonal and problem-solving skills Availability: Open to full-time employment Authorized to work in the US for any employer

JavaScript
Java
JetBrains IntelliJ IDEA
JetBrains WebStorm
Jira
Product Development
Web Application
Product Backlog
Product Management
Scrum
Web Development
$75 hourly
Trey M.
- 0.0/5
- (0 jobs)
Hello everyone! I’m a senior full stack engineer with 8+ years of experience building web and mobile apps that scale. I specialize in JavaScript-based frameworks like React, Next.js, and Node.js—and I’ve also delivered solid backends using NestJS, Django, and .NET Core. From building fast UIs to designing secure APIs and integrating with cloud services like AWS and Azure, I bring end-to-end experience to every project. I’ve led teams, launched MVPs, and solved real business problems for startups and enterprises. Clean code, fast delivery, clear communication—let’s build something great.

JavaScript
Sequelize
Firebase
NestJS
Next.js
Azure DevOps
Node.js
TypeScript
Database
C#
PHP
Amazon Web Services
Python
Angular
React
$45 hourly
Emeka A.
- 0.0/5
- (0 jobs)
As a highly skilled and innovative Software Engineer with DevOps expertise, I specialize in building robust, scalable software solutions and optimizing deployment pipelines. My experience spans a wide range of technologies, including C#, Java, Python, .NET, Spring, and Angular, with a strong focus on DevOps practices such as CI/CD, containerization, and cloud infrastructure management (AWS, Azure). I have a proven track record in creating custom web applications, designing APIs, and managing the software development lifecycle. My DevOps skills extend to automating deployments with tools like Jenkins, GitHub Actions, and GitLab, and I have hands-on experience with Docker, Kubernetes, and VMware to ensure smooth and efficient operations. Additionally, I am adept at integrating monitoring, logging, and security practices into production environments. I excel in building solutions that prioritize performance, scalability, and security. My work across various industries includes cloud deployments, API development, and system automation, with a keen focus on continuous improvement. Whether you need high-quality web applications, API development, or DevOps solutions to streamline your operations, I am here to deliver results that align with your business goals. Let’s connect and bring your project to life!

JavaScript
C#
Java
Project Management
Database
DevOps
Software Development
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