Hire the best API Developers in San Antonio, TX

Check out API Developers in San Antonio, TX with the skills you need for your next job.
  • $125 hourly
    🌟 I am a San Antonio, TX-based entrepreneur with a proven track record of 10+ years in project management, software development, and infrastructure management. My passion for coding fuels my drive to deliver innovative and impactful solutions for clients. 🔧 My expertise includes: ✔️ Software Development ✔️ Project Management ✔️ Infrastructure Management ✔️ Reverse Engineering ✔️ Systems Administration (Linux and Windows) 🏅 Key skills: ✔️ Linux ✔️ Windows ✔️ OpenAI APIs (ChatGPT, Whisper, Embeddings, Fine Tuning) ✔️ Java ✔️ Groovy ✔️ C# ✔️ Powershell ✔️ PHP ✔️ Bash ✔️ Git ✔️ JavaScript ✔️ MySQL ✔️ APIs 💡 WHY CHOOSE ME FOR YOUR NEXT PROJECT: ✅ Stellar Client Reviews: With a 100% job success score, I am dedicated to providing value and earning trust through excellent work and client satisfaction. ✅ Creative Problem Solver: My positive, can-do attitude sets me apart in overcoming challenges. ✅ Responsive and Open Communication: I prioritize keeping clients informed and engaged throughout the project. ✅ Seamless Project Planning & Execution: My streamlined approach ensures a smooth project experience. ✅ Over Delivering: My commitment to exceeding expectations results in exceptional final products. 🏆 CLIENT TESTIMONIALS: “Brandon does great work and is a very strong developer. Equally, he communicates very well, is professional, and is very easy to access. In a world of many people who can write code, most do not actually work with you like Brandon. You will not go wrong by choosing him.” "Brandon did an excellent job building the stock market indicator notification bot I requested. Very quick professional work, great communication, and built exactly what I wanted. I have worked with other freelancers before on various projects here on Upwork (check my profile) and by far this was the best experience I have had and I look forward to working on more projects with Brandon in the future. Thank you!" Ready to launch your next project? Contact me or click "hire/invite" to get started on our exciting journey together!
    vsuc_fltilesrefresh_TrophyIcon API Development
    Data Mining
    ChatGPT
    Apache Groovy
    Data Scraping
    FFmpeg
    Docker
    PHP
    .NET Framework
    C#
    JavaScript
    Java
    Linux
    Python
  • $105 hourly
    Develop android, iOS, and web based applications. I specialize in developing RESTFul based webservices using Java/Python. I also specialize in developing desktop based applications (non-web), along with relational database and NoSQL based databases.
    vsuc_fltilesrefresh_TrophyIcon API Development
    MySQL
    Azure Cosmos DB
    RESTful API
    CSS
    HTML5
    Google Cloud Platform
    Firebase
    Mobile App Development
    Python
    Hibernate
    iOS Development
    Web Service
    Spring Boot
  • $400 hourly
    Hello there! 👋 Welcome to my world of tech innovation and entrepreneurial success! 🚀 I am an expert in Guiding Startups from Concept to Market 🚩 My Journey 🚩 Blending technical savvy 🧠, innovative strategies 💥, and data-driven insights 📊, I've led teams of up to 35 in my 6+ years in the tech industry 🌐, transforming complex tech challenges into significant triumphs. 🌟 Key Achievements & Impact 🌟 🌍 Developed 100+ Websites: I tackled the challenge of digital invisibility faced by businesses across sectors, delivering robust online platforms that enhanced their market presence and engagement. 🎯 Generated 10k+ Monthly Leads: I helped businesses struggling with customer reach and market penetration by implementing advanced lead generation strategies, significantly boosting their customer acquisition. 📱 Launched 5+ Web and Mobile Apps: Startups grappling with turning their ideas into marketable products found a solution in my expertise, where I guided them from concept to successful app launch. 💡 Crafted 50+ MVPs: Many entrepreneurs face the challenge of validating their ideas. I enabled them to test and refine these ideas quickly, providing market feedback to fine-tune their products. 🛒 Elevated 6+ eCommerce Stores: I assisted eCommerce platforms that were facing stagnant sales by revamping their digital marketing strategies, resulting in a surge in sales and exceeding £2.5M annually. 🔧 Implemented 50+ ERPs and CRMs: Across sectors like Real Estate, Healthcare, Manufacturing, and more, I resolved issues of operational inefficiency and streamlined processes, enhancing productivity and automation. 🏡 Real Estate 🛒 B2C & B2B 🏭 Manufacturing 🏗️ Construction 🏥 Healthcare 🍽️ Foodservice 🌾 Agriculture 🎭 Entertainment 🌍 Tourism ✈️ Travel Agency Services 👥 HR & Recruitment 💊 Pharmaceutical 🎓 Education 🧹 Cleaning Services 💰 Investment & Asset Management 🖥️ Information Systems 🌐 SaaS Companies 📈 Business Consulting: I've guided companies through periods of stagnant growth and strategic indecisiveness, setting them on a path of sustainable growth and efficiency. 🔮 Your Tech Vision, Our Shared Mission 🔮 Are you struggling to turn your tech dreams 💭 into reality? Facing hurdles in elevating your business processes? Let's tackle these challenges together! 📢 Hire 'me' 💌 for Development and Marketing consultation along with implementation. and let's begin your journey to success, customized to your unique needs and challenges! 🤝
    vsuc_fltilesrefresh_TrophyIcon API Development
    Database Design
    MongoDB
    MySQL
    Firebase
    ExpressJS
    RESTful API
    REST API
    Tailwind CSS
    CSS
    HTML
    React
    Node.js
    PHP
    MERN Stack
  • $100 hourly
    Seeking a project that I can be just as passionate about as you are! I generally break monoliths and work on micro service and event driven architecture. I can also help your company or team with seasonal development
    vsuc_fltilesrefresh_TrophyIcon API Development
    Microservice
    NodeJS Framework
    Web Services Development
    Golang
    Code Review
    RESTful API
    Software Debugging
    GraphQL
    JavaScript
    Git
    Docker
    TypeScript
    JSON
    Amazon Web Services
  • $80 hourly
    I'm a senior software engineer with 10 years of experience and I am highly skilled in designing and building enterprise-level SaaS and eCommerce applications using modern programming languages and frameworks. I possess strong expertise in building & maintaining web applications with Ruby on Rails, React, Vue.js, and Python. Additionally, I am an innovative problem solver who employs critical thinking approaches to proactively tackle challenges across business processes and related technologies. My responsibilities: - Proficient in web application development, including RESTful APIs, with a strong focus on Ruby on Rails, Ruby, and Python. - Extensive expertise in front-end development using React & Vue.js - Deep knowledge of both SQL and NoSQL databases, including MongoDB, MySQL, and PostgreSQL. - Skilled in developing cloud-based solutions on AWS, GCP, or Azure platforms. - Professional experience with Git, Jira, and DevOps engineering practices. Professional Skills: - Ruby on Rails, Sidekiq, RSpec - React, Next.js, Redux - Vue.js, Nuxt.js, Vuex, Vuetify - Python, AI - JavaScript, Typescript - AJAX, jQuery, HTML, CSS - RESTful APIs, third-party APIs, Webpack - PostgreSQL, MySQL, MongoDB - AWS, Lambda, S3, EC2 - Heroku, Docker, DevOps, CI/CD
    vsuc_fltilesrefresh_TrophyIcon API Development
    Python
    Front-End Development
    CSS
    HTML
    JavaScript
    Vue.js
    React
    Ruby on Rails Stack
    TypeScript
    Back-End Development
    RESTful API
    PostgreSQL
    Ruby
    Ruby on Rails
  • $32 hourly
    Motivated Proficient Full Stack Developer with an Enthusiasm to complete any tasks at hand. A young new developer who is eager to learn as much as possible, with a phenomenal work ethic. My work background consists mainly of construction, so I am very well versed in the art of hard work and long hours. I served as an Infantryman in the Marine Corp for 4 years.. I have no problem tackling any delegated tasks by myself or working in a team with others. Ready for anything you need.
    vsuc_fltilesrefresh_TrophyIcon API Development
    API
    JSON
    MySQL
    Bootstrap
    jQuery
    Product Development
    AJAX
    MySQL Programming
    Git
    Object-Oriented Programming
    HTML
    CSS
    JavaScript
    Java
  • $65 hourly
    Hello! I’m thrilled to introduce myself as a seasoned professional with a robust background in mathematics, data analytics, and software development. I recently transitioned to freelance work to allow flexibility while I complete a PhD in Mathematics. My interdisciplinary skill set spans across full stack development, data engineering, and data science, making me uniquely qualified to handle a wide array of technical challenges and innovations, particularly in areas revolving around data science, data engineering, and business automation. Top Skills and Qualifications: Advanced Education: Holding a Bachelor’s degree in Mathematics and a Master's in Data Analytics from the University of Texas at San Antonio. Currently applying for a PhD in Mathematics. Professional Experience: Senior Data Scientist at Caltex, where I lead data engineering projects and mentor a team. Previously, I served as a Data Engineer and Software Engineer at Apexon and General Motors, respectively, developing and managing robust data systems and software solutions. Technical Proficiency: Expertise in Python, SQL, SQLAlchemy, and various Python libraries (Pandas, Scikit-Learn, Keras). Competent in full-stack development with Ruby on Rails and DevOps tools including Docker, Jenkins, and Ansible. Leadership: Proven track record in leading projects and hackathons, such as coordinating the AWS Health AI Hackathon and leading the AI sector in the UTSA Investment Society. Interests: Passionate about leveraging data to solve complex problems, optimize business processes, and innovate automation interfaces. Dedicated to continuous learning and applying cutting-edge technologies to develop scalable and efficient solutions. Ideal Work: Engaging in projects that harness data science and engineering to drive business intelligence and automation, enhancing operational efficiency and decision-making processes. Engagement and Communication: I value clear and regular communication and am committed to delivering high-quality work that meets the strategic objectives of my clients and their businesses. Whether you are looking to implement advanced data analytics capabilities, optimize your business processes through automation, or develop robust data-driven applications, I am here to help you navigate and succeed in your technology journey. Let’s connect and explore how we can transform challenges into opportunities with innovative solutions.
    vsuc_fltilesrefresh_TrophyIcon API Development
    ML Automation
    Statistical Analysis
    IT Management
    IT Project Management
    Python
    Data Science
    Data Science Consultation
    Statistical Programming
    Data Analytics
    System Automation
    Business Process Automation
    Automation
  • $100 hourly
    PROFILE * Over 19 years of Entrepreneurial Experience & Programming in PHP, JavaScript, jQuery & VB Script & SAP Enterprise Applications * Developed and Owned/Co-Owned 6 Small Businesses (Four are Still Active) * Ability to Pick Up New Technology Quickly * Highly Experienced in PHP & MySQL * WordPress & Shopify Customization & Development Experience * AJAX, jQuery and JavaScript Experience * Familiar and Experienced in Agile Methodology and Concepts * Excellent Written and Verbal Communication Skills * Ranked in the Top 10-20% of Developers at Intel Corporation * In the top 25% of Developers Offered a Relocation Option With Prior Company * Regarded by Co-Workers as One of the Few Developers in the Prior Organization Able to Design and Implement Solutions with Minimal Guidance * Extensive Experience in Creating Functional and Technical Designs, Specifications, and Diagrams PHP & WEB DEVELOPMENT SKILLS * Highly Experienced in PHP & MySQL Development
    vsuc_fltilesrefresh_TrophyIcon API Development
    Shopify
    LAMP Administration
    ABAP
    RESTful API
    WordPress
    PHP
    MySQL
    JSON
    CSS
    HTML
    AJAX
    Adobe Photoshop
    Bootstrap
    Apache HTTP Server
  • $30 hourly
    Hi. I am Mitsuru Kudo. 🏆 𝗧𝗵𝗶𝗻𝗴𝘀 𝗜 𝗰𝗮𝗻 𝗱𝗼 𝗳𝗼𝗿 𝘆𝗼𝘂: ✅ Building your AI SaaS / Create AI Applications ✅Build OpenAI Custom GPTs with custom actions ✅ Integrate Existing APIs ✅ Python powered custom solutions ✅ Automate workflows With python ✅ Build a custom Chatbot , AI Chatbot ✅ Integrating OpenAI GPT-3, GPT-4 , ChatGPT API into your business flow ✅ Build Smart Chatbots or Smart Conversational & Generative AI ✅ Reduce your Business workload with Prompt Engineering based solutions ✅ Finetune OpenAI gpt-3 LLM as per your needs ✅ Fine-Tune your writing / Generative AI Writing ✅ AI powered Assistant ✅ AI and machine learning / Develop your own AI Models ✅ AI Art , DALL-E 3, DALL-E 3 API, GPT-4 Turbo ✅ OpenAI Assistant API , Assistants API , Personal Assistant with OpenAI ⚠️ I can't put everything I can do here so, feel free to reach out to me. 🏆 𝗠𝘆 𝗕𝗿𝗶𝗲𝗳 𝗶𝗻𝘁𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻: I'm Full-Stack Python Developer with over four years of experience. I use modern AI such as chatgpt, gpt-3, OpenAI, GPT4 models to provide custom AI driven solutions. I'm really good at making websites and complete applications. I use Python to do cool things like automating tasks and creating smart chatbots. If you have ideas, I can help bring them to life using Python and the latest AI technology. Think of me as your trusty AI Python Developer, ready to team up with you to make your projects a reality!. Thank you
    vsuc_fltilesrefresh_TrophyIcon API Development
    Artificial Intelligence
    Machine Learning
    Chatbot Development
    Chatbot
    Python
    Computer Vision
    TypeScript
    Node.js
    ExpressJS
    API
    RESTful API
    Firebase Cloud Firestore
    Web Development
  • Want to browse more freelancers?
    Sign up

How hiring on Upwork works

1. Post a job (it’s free)

Tell us what you need. Provide as many details as possible, but don’t worry about getting it perfect.

2. Talent comes to you

Get qualified proposals within 24 hours, and meet the candidates you’re excited about. Hire as soon as you’re ready.

3. Collaborate easily

Use Upwork to chat or video call, share files, and track project progress right from the app.

4. Payment simplified

Receive invoices and make payments through Upwork. Only pay for work you authorize.

Trusted by

How do I hire a API Developer near San Antonio, TX on Upwork?

You can hire a API Developer near San Antonio, TX on Upwork in four simple steps:

  • Create a job post tailored to your API Developer project scope. We’ll walk you through the process step by step.
  • Browse top API Developer talent on Upwork and invite them to your project.
  • Once the proposals start flowing in, create a shortlist of top API Developer profiles and interview.
  • Hire the right API Developer for your project from Upwork, the world’s largest work marketplace.

At Upwork, we believe talent staffing should be easy.

How much does it cost to hire a API Developer?

Rates charged by API Developers on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.

Why hire a API Developer near San Antonio, TX on Upwork?

As the world’s work marketplace, we connect highly-skilled freelance API Developers and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream API Developer team you need to succeed.

Can I hire a API Developer near San Antonio, TX within 24 hours on Upwork?

Depending on availability and the quality of your job post, it’s entirely possible to sign up for Upwork and receive API Developer proposals within 24 hours of posting a job description.

API Developer Hiring Resources
Learn about cost factors Hire talent