Hire the best Java Developers in St. Louis, MO

Check out Java Developers in St. Louis, MO with the skills you need for your next job.
  • $45 hourly
    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
    Featured Skill Java
    C++
    JSON
    C#
    GitHub
    Bootstrap
    Git
    Angular
    React
    jQuery
    MySQL
    CSS 3
    PHP
    JavaScript
    HTML5
  • $200 hourly
    With over 20 years of experience, I have worked with oprganizations of all sizes big and small and have worked on many projects spanning all sorts of tech stacks. I have expertise with Python, Elixir, Java, PHP and javascript. I have worked extensvely on cloud platforms such as AWS and GCP and have led teams to improve their incident response processes and scalability issues. I specialize in event driven architectures utilizing RabbitMQ, Kafka, Redis and Amazon SQS. Some of my accomplishments: - I joined Zapier as their first engineering hire and scaled their infrastructure to handle millions of tasks per hour. - I have built multiple custom tailed lead management systems used by companies like suretybonds.com and mortgage lenders. - At Carfax, I re-engineered their legacy batch processing systems with real time data ingestion using RabbitMQ - I have built greenfield applications in healthcare and legaltech space - I have helped fill in devops needs for teams and have provided fractional CTO offerings.
    Featured Skill Java
    Apache Kafka
    RabbitMQ
    Django
    AWS Lambda
    Artificial Intelligence
    Web Development
    PostgreSQL
    Golang
    Elixir
    Python
    PHP
  • $60 hourly
    I excel at building and maintaining robust, scalable, and secure systems. My expertise lies in: * CI/CD Pipeline Automation: Designing and implementing end-to-end CI/CD pipelines using tools like Jenkins, Git, and various security scanning and testing tools. * Cloud Infrastructure Management: Deploying and managing applications across AWS, Azure, and GCP, leveraging infrastructure-as-code principles with tools like Terraform and CloudFormation. * Containerization and Orchestration: Building and managing containerized applications using Docker and Kubernetes, optimizing resource utilization and ensuring scalability. *Developed and deployed scalable microservices using Golang, integrating with AI-driven modules for real-time analytics and decision-making in cloud-native environments. * Security Integration: Integrating security tools and practices throughout the development lifecycle to identify and mitigate vulnerabilities. * Monitoring and Performance Optimization: Implementing monitoring solutions to proactively identify and resolve performance bottlenecks, ensuring high availability and optimal user experience. With a strong foundation in DevOps principles and a passion for automation, I am confident in my ability to deliver high-quality, reliable, and secure systems that meet business needs.
    Featured Skill Java
    Problem Solving
    DevOps
    Python
    CI/CD
    Jira
    Amazon EC2
    Kubernetes
    Apache Maven
    Docker
    Amazon Web Services
    Azure DevOps
    Azure App Service
    DevOps Engineering
  • $50 hourly
    I'm a developer with 10 years of experience, mostly in leadership positions. Ive done a lot of things because I really enjoy learning new techniques and technologies. Best at: python, c++, pytorch, unity
    Featured Skill Java
    Unity
    Swift
    Kotlin
    Python
    C#
    C++
    Multithreaded Programming
    Computer Vision
  • $35 hourly
    Startup-experienced Full-stack Software Engineer with a Bachelor's degree in Computer Science and nearly 3 years of growth at Orderly Health. I'm a friendly collaborator, a quick learner, and always eager to grow.
    Featured Skill Java
    React
    Docker
    Python
    Google Cloud Platform
  • $30 hourly
    👋 Hi there! I'm Deepthi, a Java Full Stack Developer with over 5 years of experience building scalable, secure, and high-performance applications across banking, healthcare, and technology domains. I specialize in Java, Spring Boot, Spring Cloud, and microservices architecture, and I’m equally skilled on the frontend with Angular and React. I have hands-on experience with RESTful & GraphQL APIs, Kafka for event-driven systems, and MongoDB, as well as traditional SQL databases. Whether it’s building a new application from scratch, modernizing legacy systems, or solving performance bottlenecks, I bring clean code, attention to detail, and clear communication to every project.
    Featured Skill Java
    API
    Git
    Jenkins
    Docker
    Oracle
    MongoDB
    SQL
    Integration Testing
    Unit Testing
    Microservice
    React
    Angular
    Spring Boot
  • $45 hourly
    Joseph Hartsell Software Developer - Web design, Numerical Simulations, HPC I am software developer with experience in numerical simulations and high-performance computing. In addition I develop user interfaces for analyzing and presenting collected data. I deliver robust, efficient solutions for complex problems, with a focus on maintainability and documentation. My expertise lies in building scalable systems, optimizing algorithms, and ensuring code clarity. Key Skills: Rust, C++, Python, Geant4, Linear Algebra, Differential Geometry, Parallel Processing, Memory Management, Svelte, React, SolidJS, Typescript. Notable Experience: Led development of an Optimized Radiation Detection software integrating a custom 3D CAD modeling engine with a Geant4 physical simulation, resulting in significant performance improvements and enhanced usability.
    Featured Skill Java
    Scientific Illustration
    Scientific Computation
    LaTeX
    Python
    Rust
    C++
    Mobile App
    Integral Calculus
    Artificial Intelligence
    Desktop Application
    Web Development
  • $30 hourly
    Software Developer | Backend-Focused Full Stack Engineer Hi! I’m a Computer Science student and software developer with strong experience in building real-world products. I’ve shipped impactful features, built scalable systems, and led small teams. Most recently, I worked at Keepsake, a legal tech startup, where I wrote ~10,000 lines of production-level code and helped ship multiple MVP features. A few things I’m proud of: - Built a dynamic intake form system for attorneys and clients, resulting in an 85% increase in engagement. - Integrated with a Law Practice Management software to streamline data migration for ~65% of our users. - Led a team of 3 developers to refactor a major feature based on customer feedback. - Created a reusable form builder framework that boosted dev speed on form features by 70%. - Migrated storage from AWS S3 to Google Cloud Storage, reducing storage costs by 60%. 🛠 Tech I Work With Regularly: Languages: Python, Golang, Java, TypeScript, JavaScript, C++ Frameworks: Node.js, Spring Boot, React Tools: Docker, GitHub Actions, Xcode, NGINX Cloud & Infra: AWS, GCP, PostgreSQL, MongoDB While I enjoy backend work the most (especially data-heavy or logic-rich tasks). I can churn out clean frontends as long as the design direction is clear.
    Featured Skill Java
    MongoDB
    SQL
    PostgreSQL
    Golang
    CSS
    DevOps
    Node.js
    React
    JavaScript
  • $29 hourly
    My name is Ian Schrauth. I am a Full Stack Developer based in St. Louis, MO. I previously worked for a non-profit called Aging Ahead, where I developed a complex website, database, and reporting/mobile apps. I was also a Software Developer for Charter Communications, where I managed a Broadcom-hosted Applications, developed python programs that underwent the process to become patented, developed dashboards in Grafana, and performed various SQL/Database tasks for employees. I currently have a certificate in Software Development, and am working on my Associate’s in Software Development at St. Louis Community College.
    Featured Skill Java
    Writing
    Article Writing
    C#
    Visual Basic
    Swift
    Android App Development
    iOS Development
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