Upwork home
Sign up
Secondary

Hire the best Java Developers in San Jose, CA

Check out Java Developers in San Jose, CA with the skills you need for your next job.
Hire freelancers
Clients rate Java developers
Rating is 4.7 out of 5.
4.7/5
based on 398 client reviews
  • $35 hourly

    • 5.0/5
    • (2 jobs)
    I am a frontend developer looking for opportunities to build websites and applications. - I have experience with HTML and CSS, Javascript, Java, Python, and C/C++. - I also work with Figma, Adobe, & Canva. - Regular communication is important to me, so let's keep in touch!
    vsuc_fltilesrefresh_TrophyIcon Java
    Computer Graphics
    Adobe Illustrator
    Android
    3D Design
    Database
    3D Modeling
    C
    Data Structures
    HTML
    C++
    Git
    CSS
    Python
  • $80 hourly

    • 5.0/5
    • (5 jobs)
    Seasoned engineer with proven experience in all phases of software development and operations. I have worked for several Silicon Valley start-ups developing applications and REST APIs with Python, creating big data pipelines, and managing AWS infrastructure. Deep understanding of distributed systems, microservice architecture, test-driven development, data pipelines, web crawlers, SQL and No-SQL data stores, Kafka, Elasticsearch and all AWS technologies. Experience developing and deploying secure and easy to use Restful APIs to serve frontend developers and data consumers. Ability to rapidly diagnose, remediate and optimize production workloads. Experience building data lakes and transforming, aggregating and analyzing data from structured and unstructured data sources. Willing to help in anyway I can - no job too big or too small.
    vsuc_fltilesrefresh_TrophyIcon Java
    Ubuntu
    Apache Kafka
    Oracle
    FastAPI
    REST API
    C
    Kubernetes
    Redis
    PostgreSQL
    MySQL
    C++
    Python
    Elasticsearch
    SQL
  • $25 hourly

    • 5.0/5
    • (12 jobs)
    I'm a motivated, passionate part-time developer with several years of experience in web and desktop development. I will work with you to turn your plans into reality, creating excellent products designed to completely fit what you want. I have worked on numerous personal and professional projects before, developing both backend and frontend for software projects. My skills include HTML, CSS, PHP, JavaScript, MySQL, and React. I am also willing to learn new skills and technologies and will adapt to meet whatever your needs are.
    vsuc_fltilesrefresh_TrophyIcon Java
    React Native
    MySQL Programming
    HTML5
    Python
    CSS
    PHP
    JavaScript
  • $35 hourly

    • 0.0/5
    • (0 jobs)
    Hello, I am a senior web and mobile developer who is specialized to Angular, React, Vue, Node, Laravel, and RoR Frameworks in Website development and React Native, iOS, Android/iPhone App development in Mobile with 6 + years of experience I'm always following the best practices and industry standard in writing codes and picking up the technology stack implementing patterns Always stick to the result-driven working manner with great attention to details, periodic code review and critical thought My skills are as following: ✅ Website Development - AngularJS, Angular 2,4,5,6 - ReactJS, Redux, Redux-saga, Redux-thunk, ES 6/7 - Vue.js, Vuex, Vuetify, Vue-Router - JavaScript, TypeScript, ECMAScript, PureScript, Elm, Golang, Ember.js - D3.js, Three.js, Grapejs - Blockchain experience, Cryptocurrency - PHP framework - Python, Django, Flask - Wordpress, Woocommerce, Shopify - GraphQL, MongoDB, MySQL, DynamoDB, Postgres - Github, Bitbucket, Gitlab, SVN, VSTS, Jira, Trello ✅Mobile Development - Development Tools - XCode, Android Studio, VS Code - Libraries - CocoaPods, Gradle - In-App purchase and Push notification - Social Media Integration - Facebook, Twitter, Google + - Programming Language Objective-C, Swift, Java, Kotlin, C++, Java, PHP, Flatter - Schedule Management - Calendar, Alarm, Reminder management - Local Databases - CoreData, Magical Record, Realm - Deployment - Testflight, App Store, Google Play store As a full time freelancer, I can commit 40+ hours in a week In the future, I will build the only good relationship and business with my client and teammates Thank you for your time and consideration
    vsuc_fltilesrefresh_TrophyIcon Java
    Apache Cordova
    Ionic Framework
    Node.js
    React Native
    React
    Xamarin
    Swift
    Objective-C
    Python
  • $80 hourly

    • 5.0/5
    • (1 job)
    I’m a Full-Stack Sr.Software engineer with more than 10 years of experience working in developing big-data and machine learning systems. I have extensive experience in creating scalable machine learning data science applications & high-load web applications. My main areas of expertise are: - Python 2/ 3, R, Scala, Java, PHP - Machine Learning: Regression, Decision Trees, PCA, SVD, Clustering, Image Processing - NLP: Bag of words, LDA, LSI - - Node.JS and Python Web development. - Deep Learning: Word2Vec, Neural Networks, CNN - Frameworks: Play, Django/ Flask, Spring, Symfony - Databases: SQL (MySQL, PostgreSQL), NoSQL (MongoDB, Hbase, Cassandra), Druid - Distributed Tools: Storm, Kafka, RabbitMQ, I am very proficient with data structures and algorithms. I have designed very sophisticated and scalable architectures on different cloud providers including AWS, Rackspace. I have experience in working with Fortune 100 clients, large Universities and references can be provided. OTHER - Git version control system knowledge - Project management skills
    vsuc_fltilesrefresh_TrophyIcon Java
    Amazon Web Services
    Django
    Distributed Computing
    Machine Learning
    Apache Spark
    Python
    Deep Learning
    Scala
  • $50 hourly

    • 1.3/5
    • (1 job)
    I have 5 years of experience as a software engineer and currently working at Oracle Cloud Infrastructure as a Senior Software Engineer. Currently building out Opensearch managed cloud service. Have experience with building out full stack application using react nodejs, javafx desktop application, and backend service using Java Spring.
    vsuc_fltilesrefresh_TrophyIcon Java
    Oracle
    TestNG
    Apache Kafka
    CSS 3
    React
    JavaScript
    Spring Boot
    Oracle Database
    ExpressJS
    Node.js
    Hibernate
    HTML
    MySQL
    CSS
  • $50 hourly

    • 0.0/5
    • (1 job)
    I have 5+ years working experience in Mobile APP and Web Development and completed many projects with my dedication and hard work. I always work to provide high quality service and 100% satisfaction to our customers. I am expert with Flutter, Dare, AWS Amplify, Java and JavaScript
    vsuc_fltilesrefresh_TrophyIcon Java
    Adobe XD
    Mobile App
    AWS Application
    AWS Amplify
    Flutter
  • $60 hourly

    • 0.0/5
    • (0 jobs)
    I'm a web developer experienced in building web apps. Whether you’re trying to win work, list your services, or create a new online store, I can help. Knows HTML and CSS3, JavaScript, React Regular communication is important to me, so let’s keep in touch.
    vsuc_fltilesrefresh_TrophyIcon Java
    React Native
    MySQL
    ExpressJS
    Node.js
    Python
    HTML
    SCSS
    CSS 3
    CSS
    React Bootstrap
    React
    JavaScript
    Web Application
    Web Development
  • $40 hourly

    • 0.0/5
    • (0 jobs)
    I'm a software developer with 5+ years at Google specializing in C++ and SQL. My skills and experience include software design and development, storage design and management, and building robust monitoring/alerting systems. I thrive in collaborative environments and enjoy tackling complex challenges.
    vsuc_fltilesrefresh_TrophyIcon Java
    Product Development
    Scripting
    Python
    Mathematics
    SQL
    C++
  • $50 hourly

    • 0.0/5
    • (0 jobs)
    I am an experienced and passionate software developer that specializes in full stack development taking ownership of the entire application. I have worked on small to enterprise size application and enjoy what I do. Wether you need an extra hand in a specific part of the tech stack or looking for someone to take full ownership and work independently, I am happy to work on new applications.
    vsuc_fltilesrefresh_TrophyIcon Java
    PostgreSQL
    MongoDB
    Golang
    Cloud Architecture
    JavaScript
    React
    Docker
    Kubernetes
    Web Development
    Web Application
  • $100 hourly

    • 0.0/5
    • (0 jobs)
    Experienced software and machine learning engineer with a strong foundation in backend development, data pipelines, and deploying production-ready machine learning models. Proficient in Python, Java, and related frameworks, with hands-on experience in designing scalable systems, enhancing search relevance, and building recommendation engines. Skilled in database management, cloud services, and implementing CI/CD pipelines to ensure system reliability and performance.
    vsuc_fltilesrefresh_TrophyIcon Java
    Machine Learning
    ETL
    Artificial Intelligence
    AWS Development
    Google Cloud Platform
    Spring Boot
    Elasticsearch
    MongoDB
    SQL
    Data Analytics
    JSON
    Scala
    Regex Writing
    Python
  • $100 hourly

    • 0.0/5
    • (0 jobs)
    Software engineering leader with vast experience in Databases, Big Data and cloud. I have successful track record delivering enterprise application and cloud services on tight deadline with highest quality. I thrive in complexed organizations as well as in lean teams. Great communicator and love to collaborate, brainstorm with team members and stakeholders.
    vsuc_fltilesrefresh_TrophyIcon Java
    Apache Kafka
    Scala
    Apache Spark MLlib
    Apache Flink
    Apache Spark
    ETL
    Data Mining
    ETL Pipeline
    Data Extraction
  • $33 hourly

    • 0.0/5
    • (0 jobs)
    I’m a software developer with a passion for creating efficient and innovative solutions tailored to your needs. With a strong background in computer science and experience in AI, database systems, and low-level programming, I specialize in: - Custom Software Development: From concept to deployment, I design and implement scalable, user-friendly solutions. - AI-Powered Applications: Expertise in machine learning frameworks like PyTorch and TensorFlow to build intelligent systems. - Database Design and Optimization: Creating secure and optimized database schemas and complex queries for robust back-end systems. - Full-Stack Web Development: Building responsive and dynamic web applications with tools like React, Node.js, and Flask. I pride myself on delivering high-quality work and maintaining open communication throughout the project lifecycle. Let’s collaborate to bring your vision to life!
    vsuc_fltilesrefresh_TrophyIcon Java
    Deep Learning
    OpenCV
    PyTorch
    CSS
    HTML
    TypeScript
    JavaScript
    MongoDB
    SQL
    C
    C++
    Python
    Artificial Intelligence
  • $32 hourly

    • 0.0/5
    • (0 jobs)
    Hi! I'm a research assistant at UC Berkeley, developing programs to clean and analyze datasets from experiments, implementing experiments with MATLAB, Psychtoolbox, and PsychoPy, and collecting relevant stimuli for our research. In the past, I worked as a research intern for UC Berkeley, developing experiments and data analysis scripts with MATLAB. I also interned as an IT Helpdesk Technician for the City of San Jose and led the MIT Zero Robotics Program for Silicon Valley's YMCA, and interned as a web developer for a startup focused on helping moms get back into the workforce.
    vsuc_fltilesrefresh_TrophyIcon Java
    Data Analysis
    Mathematics
    Python
    MATLAB
  • $65 hourly

    • 4.4/5
    • (1 job)
    I am a senior software engineer with wide experience in backend development who designs and develops programs using the latest and most appropriate technology. Software development is my passion and life. I aim to build high quality, sustainable applications that are easy to maintain for my clients. My goal is 100% client satisfaction. I am very thorough and willing to do whatever is necessary to produce the best final product for the client. I do my best to complete the required work with a very quick turnaround time. Please don't hesitate to contact me if you think I am the best candidate. I will respond immediately to discuss your project. Best.
    vsuc_fltilesrefresh_TrophyIcon Java
    Ruby
    iOS
    Android
    Kotlin
    Python
  • $30 hourly

    • 5.0/5
    • (2 jobs)
    Bachelor's degree in Computer Science with a strong foundation in software development, scripting, and troubleshooting across multiple platforms. Proficient in diagnosing and resolving issues on PC, Mac, and Linux devices, leveraging extensive hands-on experience with Linux systems at an advanced level. Skilled in shell scripting, particularly with PowerShell, and adept at developing scripts in Java, JavaScript, Python, and C++ to automate processes and improve efficiency. Demonstrates exceptional problem-solving skills, with a track record of troubleshooting complex technical issues in diverse environments. Proven ability to adapt quickly and contribute effectively to technical teams and projects.
    vsuc_fltilesrefresh_TrophyIcon Java
    Linux
    Computer Science
    Hardware Troubleshooting
    Python Script
    Linux System Administration
    MySQL Programming
    Git
    SQL
    Android App Development
    Firebase Realtime Database
    C++
    MySQL
  • $62 hourly

    • 0.0/5
    • (0 jobs)
    I am a highly capable software engineer with many years of hands-on experience as a full stack developer handling both frontend and backend programming for best-in-class applications. Demonstrated track record of building robust, user-friendly, highly interactive user interfaces. Adept at driving frontend and backend integration to ensure seamless, reliable application performance.
    vsuc_fltilesrefresh_TrophyIcon Java
    NoSQL Database
    Qt Framework
    Django
    TypeScript
    PHP
    Laravel
    Python
    Ruby
    C++
    C#
    JavaScript
    Node.js
    React
    Vue.js
  • $80 hourly

    • 0.0/5
    • (0 jobs)
    Result-oriented IT professional with over 10+ years of cross-cultural experience in Software Development Lifecycle, DevOps, Agile Methodologies. Certifications: ✯ AWS Certified Solutions Architect - Associate ✯ ✯ HashiCorp Certified Terraform Associate ✯ ✯ AWS Certified Cloud Practitioner ✯ ➢ Hands-on experience in designing, implementing, managing and maintaining enterprise-grade information systems running Linux/Windows on virtualization platforms. ➢ Implementation and In-depth knowledge on DevOps tools - Kubernetes, Terraform, Docker, Maven, Jenkins, Git, GitLab, Cloud Formation. ➢ Expertise in Programming languages - Python, Java, Node.js ➢ Experienced in Sprint boot, NodeJS framework, React/Angular JS and REST API development. ➢ Proficient in Developing Automation scripts using Selenium – UI, REST APIs, Database, Appium – Mobile. Teamwork | Problem Solving | Proactive | Adaptive | Stakeholder Management | Self Motivated | Innovation | Strong in Troubleshooting | Meet Operational Deadlines | Work Independently | Quick Learner
    vsuc_fltilesrefresh_TrophyIcon Java
    Linux
    CI/CD
    Terraform
    DevOps
    Python
    Docker
    MongoDB
    Amazon Web Services
    Kubernetes
    MySQL
    SQL
    PostgreSQL
    TypeScript
    JavaScript
  • $60 hourly

    • 0.0/5
    • (0 jobs)
    Mobile Application Developer who is able to create fully functional native applications from scratch for Android and iOS. Experienced at developing, testing, and releasing applications based on client specifications and needs and updating their existing code base as well as user interface. Recently I have learnt hybrids technology such as React Native and Flutter. Unity game and Unreal Engine development is one of my good expertise and trending now!!!
    vsuc_fltilesrefresh_TrophyIcon Java
    Mobile App
    DevOps
    Game
    C++
    Unreal Engine
    Buildbox
    C#
    Kotlin
    Xamarin
    React Native
    Flutter
    Swift
    Unity
  • $25 hourly

    • 5.0/5
    • (1 job)
    I've had multiple years of experience in Software Development and graduated from UCSD with a Bachelor's in Machine Learning. I know multiple languages and tools such as Python, Java, C#, R, AWS, SQL, Git, Tableau, and many more. I've had a lot of experience in both Backend and Frontend having built APIs and worked on many features for websites.
    vsuc_fltilesrefresh_TrophyIcon Java
    Data Mining
    Data Engineering
    Data Analysis
    Data Entry
    Microsoft Excel
    AWS CloudFront
    R
    Figma
    Tableau
    Machine Learning
    Python
    SQL
  • $66 hourly

    • 0.0/5
    • (0 jobs)
    PRINCIPAL QA ENGINEER Deeply experienced in QA Automation and pivotal in supporting major web & native apps projects, including significant contributions to yahoo.com. As a hands-on Technical QA Leader, expertise lies in creating and maintaining robust automation frameworks for Web and Mobile applications. Proficient in training and motivating cross-functional teams, emphasizing quality in Engineering Teams through training sessions, documentation, and technical talks. Skilled in managing and guiding QA teams,both remote and local, demonstrating a strong blend of technical acumen and leadership skills. * Knows Node, Javascript & Pyhthon. * Setting up Automation Pipeline with deployment, environment spin up & tests included * Familiar with all Scrum ceremonies, already directed some.
    vsuc_fltilesrefresh_TrophyIcon Java
    System Automation
    QA Automation
    Quality Assurance
    Node.js
    Protractor
    WebdriverIO
    Selenium WebDriver
    Instrumentation
    Git
    Splunk
    Kubernetes
    CI/CD Platform
    Python
    JavaScript
  • $55 hourly

    • 0.0/5
    • (0 jobs)
    Lead software engineer and architect with broad experience in solving hard technical and development challenges. Experienced in working closely with product to minimize effort and maximize capability. Broad full-stack expertise. * Excellent project management, planning and execution. * Able to work with product and technical teams to deliver what is needed * Strong ability to solve very hard technical problems quickly Specialties: * Performance * Cost reduction * Scalability * Troubleshooting Programming Languages: * Java * Ruby * Python * JavaScript * Bash
    vsuc_fltilesrefresh_TrophyIcon Java
    AWS Development
    AWS CodePipeline
    AWS CodeBuild
    AWS CloudFront
    AWS CloudFormation
    CI/CD
    Amazon EC2
    Amazon RDS
    Amazon ECS
    AWS Fargate
    Docker
    System Configuration
    Architecture
    Amazon Web Services
  • $70 hourly

    • 0.0/5
    • (0 jobs)
    Profile Synopsis: A seasoned Senior Developer with 14+ years in the IT industry, specializing in Java Enterprise Technology, encompassing Design Patterns, Development, Continuous Integration and Deployment. Expertise includes Requirement Gathering, System Analysis, Design, Development, Testing and Implementation with substantial hands-on experience in Agile Methodologies. Proficient in OOAD, Java standards and Microservices Architecture, currently serving as a Chapter Lead . Skilled in Azure Services, JMS and Cloud Services, supported by certifications in Azure Developer Associate (AZ-204), Azure Fundamentals (AZ-900) and Azure Data Fundamentals (DP-900). A Certified Scrum Master with experience in Microservices Applications using Spring Boot, Camel, OpenShift /Kubernetes and various Databases. Possesses strong command of tools like VISIO and STAR UML and expertise in implementing Enterprise Integration Patterns using Camel/Fuse.
    vsuc_fltilesrefresh_TrophyIcon Java
    Problem Solving
    Apache Kafka
    Hibernate
    Spring Boot
    NoSQL Database
    Azure App Service
    Spring Framework
  • $20 hourly

    • 0.0/5
    • (0 jobs)
    I have experience working on diverse software engineering projects, mainly using C++, Java, and Python.
    vsuc_fltilesrefresh_TrophyIcon Java
    Microsoft Visual Studio
    Apple Xcode
    Swift
    Software Development
    Algorithm Development
    Data Structures
    GitHub
    Git
    Python
    C++
  • $25 hourly

    • 4.1/5
    • (2 jobs)
    I am a software engineer well versed in multiple frameworks for building websites and apps. I could help with building your website/redesigning.
    vsuc_fltilesrefresh_TrophyIcon Java
    JavaScript
    PHP
    CSS
    WordPress
    HTML5
  • $50 hourly

    • 0.0/5
    • (0 jobs)
    I have 10+ years experience in iOS and Android app Development. I always deliver high performance apps during my professional career, submitted 50+ Quality Mobile Apps. Proven track record to deliver reliable and scalable Mobile Apps for iOS and Android. During my professional career my key role is Application Developer, Project Leader, architect combined with knowledge in Swift, Objective-C, JAVA, Kotlin, iPhone SDK and Android SDK in XCODE and Android Studio. Effective team player with developing an application through complete project cycle, testing and final implementation. - Programming Languages : • Swift, Objective-C (iOS) • Java, Kotlin (Android) - Highest Experiences : • iOS Swift/Objective-C, Cocoa Touch, CoreAnimation, CoreData, CoreLocation, CoreImage, Audio Framework, AVFoundation, ARKit, Core ML, Siri • Android SDK, Java, Kotlin • Google Map, OpenStreetMap SDK, HERE SDK, MapBox • Firebase, Pusher, REST, Socket, MySQL/MariaDB, PostgreSQL, SQLite, JSON, XML • Facebook, Twitter, LinkedIn, Instagram, Google+, Tumblr, Foursquare, Flickr • Flurry, TestFlight, Crashlytics, Intercom, Mixpanel, Google Analytics, Admob, Push Notification, Dropbox SDK • In-App Purchase, Stripe, Braintree and Dwolla Payment SDK • HealthKit and HealthCare • Chatting and Messaging. • QR/Bar code scan, BLE (Bluetooth Low Energy) and Beacon • Push Notification in APNs and GCM • Good communication skills and ability to work in a team Thanks.
    vsuc_fltilesrefresh_TrophyIcon Java
    iPad App Development
    iOS Development
    Mobile App Development
    Android App Development
    Android
    iOS
    tvOS
    Objective-C
    Swift
  • $100 hourly

    • 0.0/5
    • (0 jobs)
    SUMMARY Results-driven Engineering leader with over seven years of progressive leadership experience in driving innovation, optimizing processes, and delivering high-impact projects. Proven track record of aligning technical initiatives with strategic business goals, fostering cross-functional collaboration, and cultivating high-performing engineering teams. Expertise in project management, technical excellence, and team mentorship to consistently deliver exceptional results. Hands-on architect and developer with expertise in refactoring and performance optimization. Knows Java, API Design, Microservice Architecure, Optimization
    vsuc_fltilesrefresh_TrophyIcon Java
    Database Design
    NoSQL Database
    Agile Project Management
    Agile Software Development
    API Development
    Microservice
    Docker
    Kubernetes
    Spring Boot
    Project Management
    Jira
  • Want to browse more freelancers?
    Sign up

How hiring on Upwork works

1. Post a job

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 Java Developer near San Jose, CA on Upwork?

You can hire a Java Developer near San Jose, CA on Upwork in four simple steps:

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

Rates charged by Java 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 Java Developer near San Jose, CA on Upwork?

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

Can I hire a Java Developer near San Jose, CA 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 Java Developer proposals within 24 hours of posting a job description.

Looking to hire for long-term or full-time assignments? See how Full-time hiring on Upwork simplifies the process.