Hire the best Java Developers in Sunnyvale, CA

Check out Java Developers in Sunnyvale, CA with the skills you need for your next job.
Clients rate Java developers
Rating is 4.7 out of 5.
4.7/5
based on 398 client reviews
  • $75 hourly
    Software Engineer with 6 years of experience, passionate about the correctness of complex systems. Strong interest in hardware testing with a history of programming embedded systems. Worked closely with automation testers assisting in writing tests. Have included unit and integration tests in all software written.
    vsuc_fltilesrefresh_TrophyIcon Java
    Front-End Development
    Back-End Development
    Embedded System
    Autodesk Fusion 360
    Linux
    SolidWorks
    JavaScript
    Testing
    C
    Python
  • $45 hourly
    Hi there! 👋 I'm an Ex-Apple Engineer with over 12 years of experience in software development. My tech stack: 🔥 Native app development - Swift/Objective C for iOS and Java/Kotlin for Android 🔥 Cross-platform app development - React Native and Flutter 🔥 Web development - React, NodeJS, Angular, PHP, Java etc. 🔥 Cloud - AWS, Firebase, Google Cloud Platform, Digital Ocean etc. 🔥 Tools - Jira, ClickUp, Trello, Slack, Github, Bitbucket, Gitlab, Amplitude, AdobeXD, Photoshop, Canva etc. I've built software applications for a number of domains, some are - 🌍 Social media/ networking and Dating 🛍️ Rewards, Coupons and Discounts 🗺️ Navigation/GPS 🏠 Real estate 📈 Business 🛒 E-commerce, Fashion and Clothing 🌟 Entertainment 🎓 Online Learning 🚗 Transportation 🌇 Travel 📱 Wearables and IoT (Internet of Things) 🍽️ Restaurants 🏥 Telemedicine 💉 Healthcare, Wellness and Fitness 📚 Education 💵 FinTech 🏈 Sports 🧪 Science and Research 👨‍🍳 Cooking and Recipes 🎯 Games and Trivia 🚘 Automotive I lead a team of 30 developers, where I am responsible for managing team activities and projects, ensuring timely delivery, and maintaining code quality standards. In addition, I am highly communicative, detail-oriented, and passionate about delivering exceptional work. I strive to keep up with the latest industry trends and technologies to ensure that my clients receive the most innovative and cutting-edge solutions. You don't have to look anywhere else if you are looking for a reliable and skilled software developer to bring your ideas to life! Let's work together to create something amazing! 🚀
    vsuc_fltilesrefresh_TrophyIcon Java
    RESTful API
    Amazon EC2
    Stripe
    AWS Lambda
    iOS Development
    Android App Development
    Node.js
    AWS Amplify
    PHP
    Amazon Web Services
    Kotlin
    Swift
  • $50 hourly
    Hello! I enjoy contributing to Software Engineering & Web Development projects. Whether you're a small business, solo, or a large-scale business, I am ready to help you out with your software engineering concerns. Expertise: Machine Learning, Web Scraping, Web Development, Mathematics Programming Languages: HTML, CSS, JS, Python, C#, C++, Java, PyTorch
    vsuc_fltilesrefresh_TrophyIcon Java
    PyTorch
    C#
    C++
    CSS
    HTML
    Python
    Node.js
    JavaScript
    Web Scraping
    Small Business Administration
    Machine Learning
    Web Development
  • $50 hourly
    Full Stack Software Engineer with 5 years of expertise in delivering large-scale web applications using React JS, JavaScript, SQL, and AWS. Possess strong analytical, problem-solving, and collaborative skills. Committed to continuous learning and highly motivated to stay ahead in the ever-evolving realm of software development.
    vsuc_fltilesrefresh_TrophyIcon Java
    AWS Development
    Apache Kafka
    Redux
    CSS
    HTML
    .NET Framework
    MongoDB
    SQL
    Spring Boot
    Python
    C#
    Node.js
    JavaScript
    React
  • $80 hourly
    Career Profile: With over 20 years of professional software development experience, I excel in providing technical leadership across diverse consulting assignments, catering to both a Fortune Top 10 company and a cloud-based healthcare platform at Exadel. My expertise spans the entire software development lifecycle, encompassing system analysis, design, application development and testing. Key Competencies: Architecture and Design: Proficient in crafting robust architectures and designs, I specialize in the deployment of production-quality, scalable software. My focus includes leveraging web services, SOA, message queues, REST APIs and distributed/scalable architecture. Cloud Expertise: Well-versed in cloud services, including AWS, Google Cloud, and Microsoft Azure, I bring a deep understanding of container orchestration systems such as Kubernetes, EKS, and ECS. Technology Stack Mastery: Experienced in the Java stack and JVM, I specialize in memory/performance tuning and
    vsuc_fltilesrefresh_TrophyIcon Java
    TypeScript
    Docker Compose
    Docker
    PHP
    Spring Framework
    Spring Boot
    Apache Kafka
    Drupal
    MongoDB
    SQL
    AWS Glue
    Elasticsearch
    Python
    Software Development
  • $80 hourly
    I'm an experienced backend software engineer in working on API development. * Java * Golang * Full project development from design to release.
    vsuc_fltilesrefresh_TrophyIcon Java
    Software Maintenance
    Software Development
    Software Design
    Golang
    RESTful API
    API Development
  • $60 hourly
    I'm a backend developer experienced in building and managing systems, I specialise in Java developement, have experienced working in Python. I have 6+ years of experience working full time in software engineering. I am looking to work free lance during my free time
    vsuc_fltilesrefresh_TrophyIcon Java
    Python
    Data Analysis
  • $60 hourly
    I have 10 years of industry experience in web development, working with desktop computers and device drivers, and mobile solutions. I have been developing mobile applications for the last 6+ years for different domains and technologies. I am an expert iPhone & Android developer, working on the agile development methodologies and following the best practices for developing iOS & Android applications. I follow the best design and performance patterns and take the best battery optimization approach when developing an application. My skillset includes: - iOS, Android programming, Objective-C, Swift, Java - Firebase, Back4app, UrbanAirship, Amazon - JSON, XML, Rest/Soap - iAd, Revmob, Admob, Chartboost, Tapjoy, Flurry - MySql, SQLite, SQL Server - XMPP, OpenFire, Jabber. - Image/Audio/Video Process: CoreAudio, AVFoundation, OpenCV, GPU Image - Cocos2d, Box2d - GPS, A-GPS, Google Maps, HERE, Waze - BLE/ iBeacon Integration, Estimote, Gimbal, Kontakt.io - Social networking APIs and Location APIs such as Yelp APIs and Foursquare APIs. - Integrating in-app purchases, selling consumable and non-consumable products, virtual and physical goods, auto-renewable products, and subscription services. - Integrating push notifications and handling the backend as well. - Crash reporting and analysis. I stay updated on all of the latest tech developments and trends. I have extensive knowledge of modern design, graphics, and layouts and the experience needed to ensure excellent performance and great user experience with fresh designs. I pay close attention to details to ensure accuracy and to help create an elegant final product. I am available for almost 16 hours a day, ready to respond promptly to inquiries and to perform work and maintenance as needed.
    vsuc_fltilesrefresh_TrophyIcon Java
    AMP Framework
    Mobile App Development
    Android App Development
    Swift
    iOS Development
    CSS
    JavaScript
    PHP
    HTML
  • $50 hourly
    I'm a seasoned Software Engineer with extensive experience in backend infrastructure, cloud architecture, and full-stack development. With a Master's from Carnegie Mellon University and over 7 years of professional experience, I specialize in building scalable systems, optimizing CI/CD pipelines, and developing robust cloud solutions. Key Skills & Expertise: - Backend Development (Java, TypeScript, Node.js) - Cloud Architecture (AWS, serverless computing) - CI/CD Pipeline Optimization - Infrastructure as Code (AWS CDK, CloudFormation) - System Architecture & Design - Performance Optimization - API Development (REST, GraphQL) - Database Management (SQL, NoSQL, DynamoDB) - Team Leadership & Project Management As a Technical Lead and Senior Software Engineer, I have: - Reduced operational costs by 60% through infrastructure optimization and code efficiency improvements - Accelerated build times by 30-70% by implementing custom AWS-based CI/CD solutions - Architected scalable systems supporting millions of users - Led development of financial technology solutions targeting 100,000+ users - Designed and implemented serverless architectures for large-scale data processing - Managed cross-functional teams and mentored junior developers Notable Projects: 1: Cloud Infrastructure Optimization: - Revolutionized CI/CD processes using AWS runners and auto-scaling groups - Implemented custom load balancers and proxy servers for high-availability systems - Reduced monthly server expenses by 60% through infrastructure optimization 2: Authentication & Security Systems: - Designed and implemented user authentication systems supporting millions of users - Integrated AWS Cognito with custom authorization layers - Developed secure API gateways and single sign-on solutions 3: Content Management & Processing: - Created serverless asset processing pipelines for digital content - Implemented AI-powered content moderation systems - Developed custom DSLs for automated asset management Education: Master of Entertainment Technology, Carnegie Mellon University Languages & Technologies: - Primary: Java, TypeScript/JavaScript, C# - Cloud: AWS (EC2, Lambda, CDK, CloudFormation, etc.), GCP - Frameworks: Spring, Node.js, GraphQL - Database: SQL, Redis, DynamoDB, Memcache - Tools: Git, Docker, JUnit, Jest Work Approach: I believe in delivering high-quality, maintainable solutions while maintaining clear communication with stakeholders. My experience ranges from startups to established companies, allowing me to adapt to various team sizes and project requirements. I focus on understanding business needs and delivering scalable, efficient solutions that drive real value.
    vsuc_fltilesrefresh_TrophyIcon Java
    Computer Science
    GitHub
    DevOps Engineering
    Infrastructure as Code
    Cloud Architecture
    Amazon Web Services
    Google Cloud Platform
    AWS Development
    Node.js
  • $59 hourly
    Building mobile apps & progressive web apps for last 8 years. Extensive experience taking projects from design to production, in corporate, startup, and contract settings.
    vsuc_fltilesrefresh_TrophyIcon Java
    Progressive Web App
    Web Design
    Software Development
    iOS Development
    Mobile App Development
    Android App Development
    Objective-C
    Swift
    PHP
  • $10 hourly
    Hi! I'm a software developer with experience in several languages and fields. I also have experience in data analysis.
    vsuc_fltilesrefresh_TrophyIcon Java
    Data Analysis
    Scheme
    Microcontroller Programming
    Software
    SQL
    Python
  • $45 hourly
    With a Bachelor's degree in Computer Science from San José State University, I bring expertise in software engineering and a passion for innovation. From internships as a Software Engineer and Full Stack Engineer, I've honed my skills in full-stack development, system optimization, and project management. Proficient in Python, JavaScript, Java, and C++, I've tackled diverse projects, from machine learning-based price prediction to crafting secure and modern web applications. With a keen eye for detail and a commitment to excellence, I'm ready to leverage my technical proficiency to drive success in your projects.
    vsuc_fltilesrefresh_TrophyIcon Java
    Tailwind CSS
    PostgreSQL
    Next.js
    NodeJS Framework
    JavaScript
    SQL
    C
    C++
    CSS
    HTML
    Software Development
    React
    Flask
    Python
  • $15 hourly
    PROFESSIONAL SUMMARY * Experienced Software Engineering Manager and Scrum Master with strong technical background. * 10+ years of experience in managing diversified and globally disbursed software development teams. * Delivered multiple CRM products from the ground up, managing all stages of the software development life cycle from requirements definition to planning, design, development, release, and maintenance. * Demonstrated leadership and people management skills. Strong communication skills, analytical skills thorough understanding of product development. * Leader who continuously shapes up management style through experience, team goals and observation. * Leads teams thru mentoring style and follows agile principles to consistently improve team velocity * Hands-on technical leader with several years of experience building large-scale, high-performing enterprise applications for both cloud and on premise deployments
    vsuc_fltilesrefresh_TrophyIcon Java
    Product Backlog
    Quality Assurance
    Project Management Software
    Agile Project Management
    SQL
    Oracle PLSQL
    J2EE
    SaaS Development
    Scrum
  • $3 hourly
    Fluent in Java, Python, Web Dev Technologies, and the Adobe Suite. Willing to work as an intern to design and develop websites, desktop applications, produce well-crafted promotional videos, and design graphics.
    vsuc_fltilesrefresh_TrophyIcon Java
    Flexbox
    HTML
    CSS
    JavaScript
    CSS Grid
    Python
    jQuery
  • $30 hourly
    I'm a backend developer/engineer with pretty good frontend skills and have been in the workforce for about a decade. Whether you're trying to build backend/infrastructure components, websites, or just succeed at work, i can help. - I value regular communication, so lets be in touch frequently - I know Python, Django, FastAPI, and Flask (as well as Javascript and React for Frontend needs) - I have Java/Scala experience for any backends that need completion. - I'm able to manage time fully with PM capabilities as well.
    vsuc_fltilesrefresh_TrophyIcon Java
    MySQL
    MongoDB
    Docker
    Git
    Jenkins
    JavaScript
    Python
  • $30 hourly
    Developer with expertise in developing and deploying Microservices. 2.3 year of experience as a Backend developer in Amdocs, Pune. Proficient in using Spring Boot and other relevant frameworks to design and implement scalable, secure, and high-performance applications. Skilled in developing RESTful APIs, building and deploying containers using Docker and Kubernetes. Strong team player with excellent communication and problem solving skills.
    vsuc_fltilesrefresh_TrophyIcon Java
    Node.js
    JavaScript
    React
    Docker
    Kubernetes
    Python
    Spring Boot
    MySQL
    C
    Apache Maven
    Apache Kafka
    REST API
    Microservice
    C++
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