Hire the Best TypeScript Developers in Missouri

Greetings! I'm Bret, with 15 years of extensive experience as a Full-Stack developer, I excel at creating dynamic and efficient applications. My work is marked by a dedication to innovative solutions, seamless technology integration, and high-quality code. 📌 Key Skills & Technologies ✔ Front-end: Mastery in HTML5, CSS3, JavaScript frameworks such as React, Angular, and Vue, driving engaging and responsive user experiences. ✔ Back-end: Proven expertise in PHP, Python, and Node.js, with a focus on designing and implementing scalable RESTful APIs. ✔ Mobile Development: Adept at building mobile applications using React Native and Flutter, tailored for both iOS and Android environments. ✔ Databases: In-depth understanding of SQL databases (MySQL, PostgreSQL) and NoSQL databases (MongoDB), ensuring robust data management. ✔ DevOps: Skilled in CI/CD processes, Docker, and cloud platforms like AWS, enhancing deployment efficiency. ✔ Version Control: Proficient in Git, enabling smooth collaboration on projects of varying sizes and complexities. 📌 Professional Experience On Upwork, I've contributed to numerous successful projects spanning finance, e-commerce, and media sectors. My strength lies in converting complex business needs into effective technical solutions while thriving in agile settings that promote teamwork and project success. 📌 Accomplishments ✔ Engineered web applications that drove significant improvements in client engagement and revenue. ✔ Played a pivotal role in delivering mission-critical enterprise solutions ahead of schedule. ✔ Earned accolades for consistently surpassing client expectations through strategic innovation. 📌 Personal Attributes I am driven by strong analytical thinking, attention to detail, and a passion for continuously evolving my skill set. My quick adaptability and dedication make me a valuable team member in the pursuit of technological excellence. In essence, my rich background in Full-Stack development, combined with my commitment to excellence, empowers me to contribute significantly to any organization's goals. Let's join forces to achieve groundbreaking results!

I help founders ship and rescue AI SaaS products - from OpenAI, Claude, and Gemini integrations and semantic search to authentication, Stripe billing, APIs, and deployment. Bring me a Loom, rough specification, or existing repository. I’ll turn it into a scoped first milestone, surface the risky assumptions, and ship a working release. I’m a strong fit for: • AI/LLM features, semantic search, document workflows, and API integration • Full-stack MVPs with authentication, subscriptions, databases, and deployment • Existing React/Next.js, Supabase, or Firebase apps that need debugging, stabilization, and completion Recent work: • Rebuilt core search for a property platform using structured listing data, natural-language filters, Pinecone vector search, and LLM workflows • Built a subscription gym PWA with Stripe billing and real-time member workflows • Delivered clinical documentation and field-service systems with role-based permissions, document workflows, dashboards, and generated reports • Built a custom React canvas for an interactive football playbook product with AI-assisted evaluation I also created CodeTruss, an open-source acceptance gate for AI coding agents that checks scope drift and required verification. When I enter an existing codebase, I reproduce the problem, trace the important user and data flows, and find the smallest safe path to a release. I won’t recommend a rewrite unless the evidence supports it. You’ll receive working previews, concise updates, explicit risks, and honest tradeoffs. Core stack: TypeScript, React, Next.js, Node.js, Python/FastAPI, PostgreSQL, Supabase, Firebase, OpenAI, Anthropic, Gemini, Pinecone, Stripe, Playwright, Docker, and Vercel. Send the Loom, repository, or one-paragraph description of what’s stuck. I’ll tell you what I would tackle first and what the first useful milestone should deliver.

Expert Full Stack developer having skills in AI, Android, iOS & Web Development. I have 12 Years of experience in Mobile Application Development (Flutter/React Native), .Net, MERN Website Development and AI Driven softwares. 5 star rating from last 23 completed projects. My specialization is in building social networks, streaming apps, tools, utilities, e-commerce apps, consumer-facing products and B2B solutions. Integrated AI tools like Claude, OpenAI Codex, and GPT-based systems to accelerate code generation, documentation, and intelligent feature development (e.g., chatbots, sentiment analysis, recommendation systems). Designed and deployed AI-driven modules for predictive analytics, personalized content delivery, and automated decision-making in e-commerce and social apps. Developed voice and text-based assistants leveraging LLMs, Dialogflow, and OpenAI APIs, enhancing user engagement and customer support experiences. Leveraged machine learning pipelines for data-driven applications in domains such as healthcare, agriculture, and ad-tech—enabling smarter dashboards and business insights. - Website Skills: React, Angular, PHP, Wordpress, CakePHP, Magento, .Net, MySQL, CodeIgnitor etc. - Android/iOS: SWIFT, Java, J2EE, Objective C , C# , C++, C. - Hybrid framework: React Native, Flutter, Angular, NodeJS - Web service: XML/JSON, REST/SOAP - Cloud backend: Amazon S3 EC2 AWS, Firebase, Parse, Twillio - Online Payment Gateway: Paypal, Authorize.net, Stripe, PayUMoney, Braintree, Juspay - Tools: Visual Studio Code, X-Code, Android Studio, Netbeans, GitHub, Gitlab, Twilio I have done mobile applications ranging from Tiles manufacturing company, Hospitals, Pharmaceutical company to Entertainment applications like Kids ABCD and maths game. I have developed many web applications for ecommerce, agricultural warehouse management, Advertisement Network etc. With a growing focus on AI-powered automation, I combine software engineering expertise with next-gen AI capabilities to build digital products that are not only functional but also intelligent and future-ready.

✅ I perfectly realize my clients' visions. 🔝 As a talent equipped with top-tier skills and 🎩outstanding business acumen, I turn clients' visions into success. Poised to become a Software Engineer/Applications Developer in the company specializing in JAVA/J2EE(Full Stack or Backend). A Highly Talented Professional with over 14 years of experiences(12 years in Java/J2EE and 2 years in .NET). A Senior Software Engineer with some Lead Experiences in the domain of Finance, Telecommunications, State Jobs, etc. Summary of Qualifications: • HTML, HTML 5, CSS, CSS 3, JavaScript, jQuery, Ajax, XML, XSLT, Json, Dojo, Angular, Bootstrap, • React/React JS. • 14 years of solid experiences in Web Applications Technologies • 12 years of solid experiences in Core Java • 12 years of solid experiences in Java EE Technologies (STRUTS, SPRING, HIBERNATE, JSF, EJB, JPA, • EAD 4J/Jade) and spring boot Microservices • Experience in Shell Scripting and Perl Programming • Experience in JavaScript Frameworks like Angular/Angular JS, React/ReactJs and jQuery • Experience in Jenkins, Splunk • Experience in Windows, Linux, Unix and MacOS Operating Systems • Experience in Linux and Shell Scripting • Software Design and Architecting Skills • Experience JMS queue/topic, RabbitMQ and Kafka. • Strong experience of Analysis and Design of Databases (Entity Relationship Diagram) • Strong experience of Object-Oriented Analysis and Design (UML) • Strong experience in Agile Process Model • Repositories like TFS, RTC, git, unfuddle, SVN, bitbucket • Excellent verbal and written communication skills, with the ability to articulate complex ideas clearly and concisely to both technical and non-technical stakeholders. • Strong analytical and problem-solving abilities, with a focus on improving processes to accelerate delivery, foster innovation, reduce costs, and improve quality. • Japan Information Technology Standard Examination Certified Technical Skills: • View Technologies: Face lets, jsp, Angular(Typescript), React/ReactJs(JSX, Typescript), HTML, CSS, • Javascript, Bootstrap, etc • Object Relational Mapping (ORM): JPA and Hibernate • Programming Languages: Java, C#, Typescript, Groovy • Operating Systems: Linux, Windows, Unix, MacOS • Web Service: REST, SOAP, RESTful Microservices • Cloud Platforms: AWS, Windows Azure, PCF, GCP • Monitoring Tools: Dynatrace, Datadog, splunk, etc • Security: Spring Security, Certificates, SSL, LDAP • Batch Jobs: Spring Batch, Multithreading • Unit Testing Frameworks: Junit, Testng, PowerMock, Groovy Spock, Mockito, Jest, Vitest, etc • Application Servers: Glassfish, WebSphere and Tomcat • Integrated Development Environment (IDE): NetBeans, STS, RAD, RSA, intellij • Database Management Systems: MS SQL Server, DB2, Oracle, Mongo DB, Postgre SQL • CI/CD: jenkins, maven, gradle • Others: insomia, postman, jmeter, Docker, Kubernetes, swagger, RabbitMQ, Kafka, etc.

Need your software finished, deployed, and actually running in production? I’m a software engineer with 10 years of experience building, fixing, modernizing, and deploying web, mobile, cloud, and AI applications. I focus on fast turnaround, clear communication, and getting working software into your hands. Your project and source code belong to you. You’ll have access to your repository and source code throughout the project. My goal is to get your software working and into production while giving you full access to your source code and project. If everything goes well, I’d be happy to continue working with you through a long-term maintenance contract for updates, new features, bug fixes, and ongoing support—but you’ll never be locked into depending on me to access or control your own software. Want to get your project off the ground without a massive upfront development bill? Many projects can get an initial working version up and running starting around $500, depending on the scope. For the right project, that can include: • Your source code organized in a GitHub repository you can access • A working web application • Backend/API development • An iOS project • An Android project • Initial deployment and production setup Once the initial project is built and running, we can move into an ongoing maintenance contract if you’d like me to continue handling updates, bug fixes, improvements, and new features. What I Can Help You Build • Websites and full-stack web applications • Web applications expanded to iOS and Android to maximize reach and usability • Native iOS and Android applications • Custom AI and machine-learning models built from scratch • AI model design, training, testing, evaluation, and deployment • AI-powered applications and features built around custom models • Integrations with existing AI models and APIs when they’re the better solution • Production AI services and APIs • APIs, databases, authentication, payments, subscriptions, and third-party integrations • Cloud infrastructure and deployments • WordPress and PHP applications • Automated testing and CI/CD pipelines I also specialize in fixing, finishing, and rescuing incomplete or abandoned software projects. If you already have code but need someone to figure out what’s wrong, reconnect features, fix bugs, modernize the application, or finally get it deployed, I can jump into an existing codebase and help get it across the finish line. Technologies My experience includes C#, .NET, Python, Swift/SwiftUI, Kotlin, React, TypeScript, JavaScript, PHP, WordPress, SQL, Firebase, Google Cloud, Azure, AWS, REST APIs, CI/CD, automated testing, AI development, and machine learning. I’m not limited to one language or technology stack. I’m a versatile developer who can quickly learn new languages, frameworks, technologies, and existing codebases. If your project uses something that isn’t listed above, that doesn’t mean I can’t work with it. I’m comfortable jumping into unfamiliar systems, understanding how they work, troubleshooting problems, and getting projects moving toward production. As a founder and lead developer, I understand that successful software is about more than writing code. It needs to work reliably, reach real users, and remain maintainable after delivery. I understand the importance of communication, realistic timelines, and making sure you always know where your project stands. Whether you need a new application built from scratch, a custom AI model developed and trained, an existing application improved, a WordPress site developed, a web application expanded to iOS and Android, or a project another developer left unfinished, I can help. Get it working. Get it into production. Keep your code. Have a project that needs to be built, fixed, or finally launched? Send me a message and let’s get it running.

👋 If you’re looking for a web designer and developer to take your business to the next level, look no further. Let’s join forces to build a website or app that’s both creative and functional one that boosts your business’s efficiency. 👨‍💻 I’ll guide you through every step of creating your digital product, from the initial concept to the final launch. We’ll simplify complex processes and customize everything to meet your unique business needs. 💪 How I can assist you: HTML5 Banners Web Development 🤓 Every project we take on is a testament to our passion and dedication — and dedication drives success. Our design process emphasizes close collaboration, ensuring your unique vision and brand identity shine through in every detail. 👐 Get in touch today, and and let’s begin!