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Hire the best JavaScript Developers in Buffalo, NY

Check out JavaScript Developers in Buffalo, NY with the skills you need for your next job.
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Clients rate JavaScript developers
Rating is 4.7 out of 5.
4.7/5
based on 788 client reviews
  • $35 hourly

    • 5.0/5
    • (2 jobs)
    Experienced Full-Stack Developer, proficient in HTML, CSS, Bootstrap, JavaScript, JQuery, and various backend tools like .Net, SQL, etc.. Skilled in building responsive and user-friendly websites with a keen eye for design. Extensive experience in third-party API integration, ensuring seamless connectivity and enhanced functionality for your projects. Dedicated to crafting websites that meet accessibility standards, making the web inclusive for all users. With a healthcare background, I am well-versed in creating solutions tailored to the healthcare industry. Ready to tackle diverse projects and contribute to your web development needs.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Figma
    Microsoft SQL Server
    SQL
    ASP.NET
    C#
    Bootstrap
    jQuery
    CSS
    HTML
  • $60 hourly

    • 5.0/5
    • (4 jobs)
    Hello! I'm Frank, a Full-Stack Developer based in Buffalo, NY. Currently, I'm actively contributing as a Software Engineer at Apple but I'm also excited to step into the world of freelance on Upwork. Don't let my "newcomer" status on Upwork fool you - I'm a seasoned pro when it comes to both front-end and back-end software development. I've built scalable enterprise-level applications from the ground up, enhanced user experiences, and improved site functionality, all while keeping the code optimized and performance at the forefront. I'm well versed in many different technologies like HTML, CSS, JavaScript, TypeScript, Next.js and I'm particularly adept with React and Ruby on Rails. I also have substantial experience with Node.js and GraphQL. In addition to my current role at Apple, I've been pivotal in building out new features at Women Who Code, Popmenu and leading a development team at Mean Guppy. I've worked on a diverse range of projects, from developing component systems to setting up and maintaining CI/CD pipelines. I believe in collaborative teamwork and I'm always ready to lead code reviews to foster best practices. I'm not just passionate about technology and design, I also love fitness and am constantly seeking to learn and grow. Now, I'm eager to use my industry experience in the freelance world. Let's connect and see how we can create something spectacular together!
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    MongoDB
    API
    PostgreSQL
    GraphQL
    Ruby on Rails
    Svelte
    SQL
    Material UI
    Node.js
    CSS
    HTML
    Next.js
    TypeScript
    React
  • $75 hourly

    • 5.0/5
    • (3 jobs)
    Expert-level Regulatory & Process Technical Writer and editor with over 20 years experience, including FDA-regulatory Quality documentation. Highlights: - Draft press release and technical content for advertising and marketing agency clients using SEO methods for Google Search & Apple Search Ads (certified) on AWS and EV topics. - Author 510k submission for NY Medicaid provider and trained/guided staff on QMS management, which included authoring a collection of FDA quality processes and policy. - Draft Teacher’s Notes for Senior Researcher at UVA Darden Graduate School using Standard Harvard Methodology. - Architect knowledgebase wiki using Bookstack for production company. - Wordpress design and web editing / maintenance for independent pharmacy owner clients. - Spearhead HIPAA-compliant Disaster Recovery plan creation for insurance organization. - Prepare drafts for Deloitte Tax clients of submission to IRS for tax incentive program. - Customized Mozilla’s Bugzilla template toolkit to architect an enterprise-scale application; validated for regulatory use; led training sessions via webinars and in-person training sessions for each group based on custom roles and permissions. Recieved award for co-spearheading the design of a brand standards resource; acted as company-wide style czar for all client-facing documentation.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Total Quality Management
    Agile Software Development
    Product Requirements Document
    Regulatory Compliance
    Template Design
    Process Documentation
    Technical Editing
    Software Documentation
    Editing & Proofreading
    Quality Management System
    Microsoft Word
    Style Guide Development
    Technical Writing
    HTML5
  • $70 hourly

    • 5.0/5
    • (9 jobs)
    As a highly skilled full-stack web developer, I'm able to bring extensive experience in developing high-quality software using cutting-edge technologies. My strengths lie in creating user-friendly and visually appealing web applications that clients fall in love with, and my robust and consistent communication skills. I hold a Master's degree in Computer Science from the University at Buffalo and have completed over five years of industry experience. I have a deep understanding of a variety of full-stack technologies, and I'm able to take my experience and break things down for non-engineers. I have a solid understanding of the workflow of designers, making me especially efficient at communicating with them directly. My communication skills combined with my ability to take responsibility of my duties on a project allow me to be a valuable asset to any project. A few of the many technologies that I'm proficient in are: • React.js • Vue.js • Node.js • Express.js • Python • Django • PHP • Laravel • Relational DBs: PostgreSQL, MySQL, SQLite • NoSQL DBs: MongoDB, DynamoDB, Firebase Realtime Database, Firestore Feel free to reach out for projects you have in mind. I've got confidence that I'll be able to find a solution that'll exceed your expectations.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Redux Form
    Vuex
    NestJS
    Redux
    Django
    Vue.js
    ExpressJS
    Gatsby.js
    React
    CSS
    Node.js
    Python
    Next.js
    TypeScript
  • $35 hourly

    • 5.0/5
    • (2 jobs)
    Looking for a professional skilled in simplifying complex topics? As an experienced software developer with a proven track record and a degree in computer science, I specialize in C#, JavaScript, Python, and SQL. With expertise in technical documentation, Agile methodologies, and mid-level system design, I ensure smooth project execution. Let's work together to achieve your goals. Coding Languages: SQL | Javascript | HTML/CSS | Python | C# | MarkDown | Java | Scala Software Proficiencies: GitHub | Azure DevOps | IntelliJ | VSCode | Visual Studio | SQL Server Management Studio
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Data Science
    Software Development
    .NET Core
    C#
    Vue.js
    HTML
    Java
    Python
  • $33 hourly

    • 4.7/5
    • (117 jobs)
    I am a creative minded individual, I love problem solving and I always bring my creativity to the table when looking for solutions. I always try to find the details in everything and use them to gain new perspectives, especially in the work I do. My mechanically inclined nature allows me to make things work while my imagination lets me do it in a beautiful way. I found out I had a natural knack for coding, fell in love with it soon after, and then decided to pursue it. It allowed me to grow and excel in ways I never imagined. Now with 7+ years experience and countless projects I have developed a wide skill set and I am well-versed in various languages, frameworks, platforms, SEO, and APIs. With a focus on complete Wordpress development, Woocommerce, and custom plugins. My goal is to always stay learning, refining my skills, continuing to grow a strong and professional portfolio, and gain new professional contacts and clients in which to build lasting relationships with. I plan to achieve this by using my skills and creativity to design and develop responsive websites and web applications that are not only beautiful but unique, all while representing the client or business in the best possible way.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    MySQL Programming
    Web Design
    Responsive Design
    WordPress
    HTML
    PHP
    jQuery
    CSS
    Bootstrap
  • $25 hourly

    • 5.0/5
    • (10 jobs)
    A professional Full Stack Developer and IT Specialist with a B.S. Degree in Computer Science who has experience in Javascript, HTML, CSS, React.Js, Node.js, Next.js, APIs, Databases, AI, Wordpress and more. I assure you that I will provide a top notch, finished product at a rate that won't break the bank. Please take a look at my personal site in my Portfolio section! Certifications: AWS Certified Developer Associate CCNA - Cisco Certified Network Associate
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    User Experience Design
    Photo Editing
    Figma
    AWS Lambda
    Tailwind CSS
    AWS Amplify
    Node.js
    Next.js
    HTML
    React
    CSS
    WordPress
    jQuery
    Bootstrap
  • $70 hourly

    • 0.0/5
    • (0 jobs)
    Highly experienced, professional web developer with over 12 years of experience specializing in C#, .NET, ASP.NET, Angular, React, SQL Server. My Skills: - C#, ASP.NET, VB.NET, .NET Core, MVC - AngularJS/Angular, React.js - Umbraco, Dynamics CRM, Power BI - SQL Server, MS SQL, Oracle, PostgreSQL, MongoDB - Bootstrap, jQuery, HTML5, CSS3, Javascript - AWS, GCP, Azure - Github, Bitbucket I'm constantly self-learning new technologies and trends of this industry, and this way makes me a mostly modernized software guy. Also, unlike many developers, I'm friendly, empathetic, and want to understand your overall business strategy for the project. The more we communicate, the better job I can do for you as a customer. Please feel free to contact me to bounce back any ideas or questions you may have about completing your project.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Angular
    Umbraco
    React
    .NET Core
    C#
    SQL
    ASP.NET
    Microsoft SQL Server
    .NET Framework
  • $75 hourly

    • 0.0/5
    • (0 jobs)
    I've been building Laravel apps for the last five years and Vue apps for the past three. During that time, I've contributed to the Laravel framework, written a number of community blog posts, and spoken at Laracon.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Web Development
    Vue.js
    Laravel
    PHP
  • $30 hourly

    • 5.0/5
    • (4 jobs)
    Greetings! I'm a seasoned Senior MERN Stack Developer with extensive experience in MongoDB, ReactJS, NodeJs, and JavaScript. With over 10 years in the industry, I bring a wealth of expertise to every project, ensuring efficient, scalable, and high-performance solutions tailored to your unique needs. Expertise spans across various technologies and frameworks including: ✅ Custom ReactJS Web Application Development ✅ Node.js Backend API Development ✅ MongoDB Database Design and Management ✅ E-commerce Solutions with MERN Stack ✅ Real-Time Applications Using WebSockets ✅ Performance Optimization for Web Applications ✅ Responsive Frontend Development Services ✅ Custom WordPress Website Design & Development ✅ Elementor Website Design & Customization ✅ Responsive WordPress Theme Development ✅ Backend Bug Fixes ✅ PHP Backend Development ✅ Firebase Setup & Integration Why Choose Me: ✨ Accurate, artistic, and customized changes. ✨ Quick turnaround time, and quality results. ✨ Clear, cooperative communication. ✨ Superior industry knowledge. ✨ Confidential and secure. Let’s turn your vision into reality! Reach out to discuss how I can help with your next web development project. Looking forward to collaborating with you!
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Firebase
    jQuery
    HTML
    Website Customization
    Website & CMS Bug Fix
    Webflow
    React
    ExpressJS
    Node.js
    Web Application
    Python
    MERN Stack
    Full-Stack Development
  • $45 hourly

    • 4.6/5
    • (2 jobs)
    Saleem Ahmed is currently a full-time doctoral candidate in the CSE dept @University at Buffalo. A continuous innovator with a thirst for implementing new creative ideas, he is an accomplished engineer and researcher. Most recently (’22), he interned as a research scientist at the Adobe Document Intelligence Lab. Previously, he was part of the initial engineering team and spent 3-years (’14-’17) building critical software for a ride-sharing startup and one of the largest food-tech startups in SE Asia. After joining grad school(’17) and having been introduced to dedicated research at a top research lab in Santa Clara(’18) he graduated with a Masters's degree specializing in AI(’19) and then continued in the doctoral program to pursue research in Machine Learning.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Node.js
    Cloud Architecture
    AWS Application
    Software Development
    pandas
    Python
    NumPy
    C++
    SciPy
    Deep Learning
    Machine Learning
    PyTorch
    TensorFlow
    MATLAB
  • $88 hourly

    • 0.0/5
    • (0 jobs)
    I'm Mike Brennan, an Ecommerce Development Expert with 18 years of experience in the software and web industry. Get in touch to book a free discovery call here on Upwork to discuss your project and see if we are a fit. I specialize in full service ecommerce design, development, and growth strategies and implementation. My expertise lies in identifying and leveraging market opportunities to propel company objectives. I have a proven track record of successfully managing large-scale projects, enhancing operational efficiencies, and boosting profitability. With a robust background in both technical and strategic aspects of ecommerce development, I am adept at consulting and leading teams towards achieving business excellence. If you're seeking to expand your market reach, streamline operations, or need expert guidance on software solutions, I am equipped to deliver the insights and leadership necessary to turn your goals into reality. Let’s connect to explore how we can elevate your business together.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Ecommerce Website Development
    Custom Ecommerce Store
    Software Configuration Management
    Software
    WordPress Plugin
    Ruby on Rails
    API Integration
    Laravel
    PHP
    Conversion Rate Optimization
    Shopify
    WooCommerce
    WordPress
    Software Consultation
  • $125 hourly

    • 0.0/5
    • (1 job)
    I'm Jon Brennan, a Full Stack Software Development expert. With decades of experience and a background in executive management, I bring a wealth of expertise to a diverse set of projects and clients. Book a free discovery call today for a complimentary consultation to discuss your project needs. Experience Highlights: Executive Roles: Former CEO and owner of a government contract firm, collaborating with NSA and CIA. Security Experience: Held top secret clearance, managed sensitive projects. Fortune 500 Leadership: Managed large teams and complex projects at Fortune 500 companies. Key Skills: Programming Languages: PHP, JavaScript, Ruby on Rails Frameworks: React, Laravel Ecommerce Platforms: WooCommerce, Shopify, Custom Ecommerce Stores CMS: WordPress Software Architecture & Design: Proficient in creating robust architectures and seamless designs API Development: Extensive experience in API integration and development Business Application Development: Tailored solutions to meet business needs Consulting: Providing expert advice and strategic project execution I am committed to delivering top-notch results, leveraging my extensive experience to help clients achieve their technology goals. Whether you’re developing a new application, migrating your e-commerce store, or enhancing your software architecture, I’m here to bring your vision to life with precision and professionalism. Book a free discovery call to chat.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Web Development
    CRM Development
    Analytics
    Custom PHP
    Website Integration
    Web Analytics
    Software Development
    Website Builders & CMS Consultation
    Custom App
    Business Application Development Language
    API
    Laravel
    PHP
    Software Architecture & Design
  • $35 hourly

    • 0.0/5
    • (0 jobs)
    My Top SKills are in Data Analytics and Web Development using Python, C#, PHP, and Javascript. I have been doing full stack web development for going on 7 years now.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    .NET Core
    C#
    CSS
    HTML
    Tailwind CSS
    React
    Vue.js
    R
    Symfony
    Laravel
    PHP
    Django
    Python
  • $20 hourly

    • 5.0/5
    • (4 jobs)
    Freelance Web Developer proficient in HTML, CSS, and Javascript. CCA Web Development Certifications: HTML CSS Javascript PHP MySQL
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    WordPress
    HTML
    MySQL
    Bootstrap
    jQuery
    CSS
    HTML5
    PHP
  • $80 hourly

    • 0.0/5
    • (0 jobs)
    Hello, I have 7 years of experience in web/mobile development with Jvascript and Ruby on Rails, React and Vue.js. I have good design eye and good experience in converting figma/zeplin ui design to UI/UX pixcel perfect & responsive ui components. Also, I have pretty much experience in Blockchain and web3.js. Thank you for taking the time to review my profile. I usually respond to inquiries within 1 hr and look forward to hearing about your organization's next project.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    React Native
    Blockchain
    web3.js
    AWS Lambda
    MongoDB
    SQL
    React
    TypeScript
    Vue.js
    CSS
    Node.js
    HTML
    Ruby on Rails
    Golang
  • $13 hourly

    • 0.0/5
    • (1 job)
    EXPERIENCE CDC Vaccination Data Visualization System, Python, HTML, CSS October 2021 * Used BeautifulSoup to parse raw web requests into lists in Python and produced bar charts and pie charts using d3.js in Javascript. * Built a web server to server and rendered the charts using Bottle and HTML. Mobile WeatherApp, Java July 2023 * Designed UI by using Responsive Layout that caters to different sizes of screen. * Used a public weather data API to display the weather data in the application * Used SQL to store the weather data into a local database for offline availability. Shopping Website Home Page Basic Framework, JSX, Javascript, CSS June 2022 * Implement the structure and appearance of the website. * Organize the primary functionalities of the website: add, delete, search, etc.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    C
    CSS
    Mathematics
    Web Development
    Algorithm Development
    API
    SQL
    C++
    Scala
    Java
    Python
  • $200 hourly

    • 0.0/5
    • (0 jobs)
    Principal Software Engineer with 17+ years of experience. Expert full stack developer capable of handling everything from infrastructure and backend development to frontend. Extensive experience building APIs, SPAs, training AI models, building chatbots, migrating data and much more. Fluent in Elixir, Typescript, Javascript, Python, Java, Perl. AWS Expert including multi-region and multi-account. Expert in various databases including MySQL, DynamoDB, Postgres and Snowflake.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    REST API
    API
    React
    Node.js
    Perl
    PostgreSQL
    MySQL
    Amazon DynamoDB
    Amazon Cognito
    AWS Lambda
    Web Services Development
    Elixir
    TypeScript
    Amazon Web Services
  • $20 hourly

    • 5.0/5
    • (0 jobs)
    I am a front-end developer specializing in creating user-friendly and accessible websites. Whether you need to showcase your services, build a new website from scratch, or enhance your online presence, I can help you achieve your goals. Skills: - HTML and CSS3: Creating well-structured and styled web pages. - Responsive Design: Ensuring websites look great on all devices. - JavaScript: Adding interactive elements to enhance user experience. - Web Accessibility: Making websites usable for everyone, including those with disabilities. - UI/UX Design: Creating intuitive and engaging user interfaces. - Version Control (Git): Managing and tracking changes in code efficiently. - Wireframing: Designing the structure and layout of web pages. All my certificates, including completed courses in HTML5, CSS3, responsive design, and JavaScript, can be viewed on my website.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Python
    Web Design
    Web Development
    Wireframing
    Version Control
    Bootstrap
    Cross-Browser Compatibility
    Web Accessibility
    Front-End Development
    Responsive Design
    HTML5
    CSS 3
    CSS
    HTML
  • $25 hourly

    • 0.0/5
    • (0 jobs)
    Experienced Full-Stack Engineer with over 5 years of experience, specializing in Java and Python with REST API for backend development, complemented by expertise in React and Angular frontends. AWS Certified Developer Associate with a proven ability to deliver scalable cloud-based applications.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Deep Learning
    Machine Learning
    Data Science
    Spring Boot
    React
    Angular
    SQL
    Python
    Java
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