Hire the best Java Developers in Seattle, WA
Check out Java Developers in Seattle, WA with the skills you need for your next job.
- $60 hourly
- 5.0/5
- (17 jobs)
Greetings, I'm Aaron, a software engineer with 11 years experience. I am an expert at Java and Spring Boot, while also being well versed in many other languages, JavaScript, NodeJS, PHP, C++. I know web very well, so HTML, CSS, React, and various other frontend tech. The databases I use include MySql, Postgresql, Mariadb, Mongo, Redis, Kafka and others. I work on the following sorts of projects: - Creating REST APIs and developing backends - Database design and implementation, optimizations - Building web apps, both internal and external - Integrations between systems, writing custom integration code - Custom automations, usually in code. - IT work, setting up servers and cloud infrastructure, scalable systems - Anything at all related to Java, Spring Boot, and this ecosystem I can do the entire lifecycle for your software, you just tell me the requirements, I'll get it done.JavaJavaFXStripeSOAPJ2EERESTful ArchitectureRESTful APIAmazon Web ServicesReactJSONXMLJavaScriptApache MavenSpring MVCSpring SecuritySpring Boot - $120 hourly
- 4.8/5
- (29 jobs)
**NOTICE:** I AM NO LONGER ACCEPTING ANY PROPOSALS. After more than a decade on Upwork, I'm leaving. It's terrible and abusive to freelancers and you should leave too. Upwork lies to their freelancers, changes ToS mid-contract, do not protect their freelancers from abusive businesses, and ignores the community's support needs. They're greedy, greedy, greedy, and have taken to trying to squeeze freelancers for everything they can instead of improving their platform or making the market safer. They ignore the abuses of scammers while milking their freelancers. It's not a coincidence that scammers flock to this platform and Upwork has no interest in doing anything about it because it makes the platform look more active than it really is. I suggest you get out! ----------------- Hey, My name is Jason! I'm a spirited PHP programmer and software engineer with a broad spectrum of talents. I've spent half of my life coding in some capacity or another, but most of my focus and energy in the last 12 years has been on web development for the Wordpress framework, both front-end and back-end. The non-nerd TL;DR ---- If you're a small business looking for an experienced developer with a proven track record for the Wordpress platform, then you've probably come to the right place. I've built up and torn down enough Wordpress sites at this point that I would safely use the "e" word - expert. I know the pitfalls, 'gotchas', and nuanced behaviors in Wordpress that only comes from long and committed experience with the platform. Whether it's site migration, custom plugin creation, or theme development, I can get you where you need to go. The Juicy Parts ---- Most of my work has been development for Wordpress. I'm an experienced developer for plugins and themes on the Wordpress platform and a competent back-end developer and server administrator. I build highly-available, resilient and secure distributed website applications. Preferred Work - **Implementing New Website Features** - I love system design! I love planning the data structure, building out system requirements, and implementing the final solution! - **Front-end Design and Creative** - I love UX/UI design and am a competent Figma user. I can design, slice and implement my own designs, or one that you provide. - **Large Projects** - I prefer longer contracts with lots of different kinds of tasks. Tiny contracts or monotonous work don't really appeal to. - **Maintenance/On-call Retainers** - My services are available on retainer. This means that I can handle your site's issues as they crop up, without having to find a developer every time. Most experienced with - Server Administration (*NIX, VPS, Docker) - PHP (Wordpress framework) - Javascript/Typescript (Frontend/React and Gutenberg Blocks development) - CSS3/SCSS (Frontend styling and design) I am an experienced administrator of LAMP stacks (Primarily Ubuntu server management.) I've developed dozens of custom plugins and themes for clients on the Wordpress platform. I've also done a number of "emergency interventions" for compromised websites. (Hardening the platform, using Apache to strengthen sensitive areas, using CLI tools like grep to search for and eliminate compromising scripts, etc.) Experienced user in: - Github/Git - A number of IDE's (I prefer VSC and GNU Emacs) - Unix CLI (I use WSL for my development) I have experience with the following technologies and have done or worked on projects with them, though they haven't been my primary focus. - socket.io - Mozilla Audio Webkit - Java - Python (Primary experience with matplotlib, pandas, numpy and datasets) - C/C++ - Unreal Game Engine (C++ and Blueprints) Other ---- As a well-rounded geek, it's inevitable that I end up with my fingers in multiple cookie jars over the years. I have passion for and have done personal projects over the years in other fields such as: - Video production - Game development - Visual Effects and AV post-processing - 3D Animation and modeling - Audio Engineering and sound design - Music Production (Production and Mastering) - Data Analysis (Python) - Photo Manipulation and Editing - Icon and graphics creation Misc Talents - Fluent Spanish speaker (Viví en Chile por dos años y aprendí el Éspañol mientras que estuve allí.) - I'm a musician as a hobby and write music in my freetime. - I can probably kick your butt in a round of Mario Smash Brothers Melee My earliest programming memory is of my father teaching me procedural programming logic with Q-Basic on an old MS-DOS machine at about age 10. When I was 16, I built and maintained my first site. I also have countless years of online SEO/Marketing experience through everything from Google Adwords, Direct Online Marketing, Backlinking, and modern Ad Campaigns through social media. Go ahead and shoot me an invitation. I'll take a look at it.JavaCastilian SpanishAndroid App DevelopmentWordPressHTMLCSSJavaScriptPHPjQueryMySQL - $75 hourly
- 5.0/5
- (16 jobs)
I'm very passionate when it comes to software engineering and building impactful systems for my clients! I'm currently working full-time as a backend software engineer at Amazon. However, in my spare time I enjoy working on projects that interest me and allow me to learn new skills. I've built many cloud-based solutions in the past, with both Google Cloud Platform and Amazon Web Services. I'm most proficient with AWS. Degrees: Computer Science - Bellevue College Applied Physics - University of WashingtonJavaPython Scikit-LearnMachine LearningSolidWorksGame DevelopmentJavaScriptData CleaningPython - $80 hourly
- 5.0/5
- (55 jobs)
I write code that smells like Lilac and reads like Byron. I have a compulsive love for elegant architecture, Stockholm syndrome for clear documentation, and a solid background in clean code. I’ve taken multiple projects from ideation to production, discovered new mathematical transforms, led teams of developers, wrangeled interns, and presented to executives. I’ve tested my mettle contending with stormy seas in small watercraft, particularly puckering precipices on skis, and freezing desert nights without so much as a tent to shelter under. I’ve gone ice breaking in a canoe, sent the fingers on ski blades, been skinny dipping in frigid alpine lakes, driven in LA, and have stories enough to last long into the night. All this to say, your biggest, grimiest, oldest ball of mud doesn’t scare me in the slightest. When things go awry in the worst of ways, I get loud and I lead. I combine the knowledge of a software engineer with the swarthy gumption of an adventurer, and the hard won experience of both. Let me build you something beautiful!JavaData ExtractionData MiningWeb CrawlingBlenderData ScrapingC++C#SQLPythonMicroserviceDistributed ComputingSoftware Architecture & DesignServerless Computing - $50 hourly
- 5.0/5
- (1 job)
I am a Software Engineer with lots of full stack and backend experience. I've worked in unicorn startups for the last 6 years.JavaReactIaaSCloud ArchitectureC#JavaScript - $400 hourly
- 5.0/5
- (14 jobs)
* Led and grew Amazon Mechanical Turk. Owned the Requester experience. * Launched Amazon Augmented AI * Co-launched SageMaker Ground Truth * Managed managers and teams of teams, upwards of ~40 developers Expert at: Distributed Systems Web Services Application Security Product Management Private Betas Strategy Recruiting Management Amazon Mechanical Turk SageMaker Ground Truth Amazon Augmented AI Data Labeling Crowdsourcing Data Annotation Ruby Ruby on Rails Java Python Javascript TypeScript Web Components AWS Lambda AWS EC2 AWS S3 AWS API Gateway AWS CloudFormation AWS CloudFront AWS DynamoDB AWS Amplify AWS DynamoDB AWS IAM AWS Route53 AWS CodeStar AWS CodeDeploy AWS CodeCommit AWS Elastic MapReduce AWS Rekognition AWS Comprehend AWS Textract AWS Cognito AWS Key Management Service (KMS) AWS Secrets Manager AWS Simple Notification Service (SNS) AWS Simple Queue Service (SQS) AWS Step Functions AWS Relational Database Service (RDS) Hadoop Hive Twilio MySQL PostgreSQL Metasploit Capybara Cucumber Selenium GreasemonkeyJavaAmazon SageMakerRubyAmazon S3Mechanical Turk APIPythonStrategyJavaScriptNext.jsAmazon Web ServicesAmazon CognitoTwilioAWS LambdaStripeRecruitingProduct Management - $40 hourly
- 5.0/5
- (10 jobs)
Hi everyone! I'm a professional Software Engineer at a FAANG company since five years ago. Coding and Data Engineering have always been huge passions in my life. Some of my expertise are in: - Cloud Architecture - Software Development - Data Engineering, ETL, - API design and implementation - Mobile and Web development in React - Network Engineering and Architecture Contact me with a message and we can schedule a Zoom call.JavaReact NativeETLPySparkData EngineeringNetwork EngineeringSoftware DevelopmentAWS GlueSQLAlchemyMicrosoft Azure SQL DatabasePythonAmazon Web ServicesReactSQLpandas - $70 hourly
- 5.0/5
- (6 jobs)
I am a software engineer with experience in large backend systems and a recent Masters graduate in Data Science from UC Berkeley. I also have a love for and experience in mathematical and data-oriented problem solving, as well as creating effective tooling for individuals and organizations. I love delivering value and I take pride in providing well-crafted solutions to problems. - For 3.5 years I was an engineer in the backend of the Security and Privacy organization of Google Cloud, and before that an engineer in the Supply Chain Optimization Technologies organization of Amazon. - My recent freelancing experiences include full-stack development for impactmarkets.io and creating a neuroscience analysis tool in collaboration with Columbia University. - I have open source software experience, including pull requests accepted to Qutebrowser and MPV Media Player. - I am experienced in a number of programming languages including Python, C, C++, Go, Java, and Bash / Posix Shell, as well as technologies include Linux, Git, devops tools, containerization technologies, and cloud infrastructure. - Alongside my BS in computer science, I also possess a BS in discrete mathematics and a Masters in data science.JavaData ScienceGolangLinuxBashData AnalysisData StructuresC++PythonCloud Computing - $70 hourly
- 5.0/5
- (3 jobs)
Hi there! I'm a full-time FAANG developer looking to work on some side projects in my free time. I’m new to UpWork, and excited to try working on some new projects. I can accomplish almost any project and will learn whatever I need to get the project done for you. I take pride in my work and will do my best to deliver you high quality work.JavaFlutteriOS SDKC++C#SQLData ScienceBack-End DevelopmentSoftware DevelopmentMicrosoft AzurePythonJavaScriptScriptingSelenium - $32 hourly
- 5.0/5
- (1 job)
I am a software engineer at a big tech company. I have a strong understanding of the latest programming languages and technologies, and I am excellent in problem solving. I can help you with automation of tasks, or working on whatever project you have. - I am proficient in writing code in Java, Python, C, Scala, C#, SQL - I have experience with AWS, Docker, Jenkins, Git, Github & GitHub Actions, Spring Boot If you are interested in my services, please do not hesitate to contact me. I would be happy to discuss your specific needs and how I can help you.JavaData StructuresC#CPython - $32 hourly
- 5.0/5
- (2 jobs)
Hi, I'm Will Maxcy, a Master of Computer Science with a strong background in data extraction. With my expertise and passion for finding solutions, I'm here to help you and your small business thrive. • I've mastered the art of efficiently extracting data from various websites, ensuring accurate and reliable results. • I understand the unique challenges faced by small businesses and can provide customized solutions that fit your specific needs and budget. • I value your time and will deliver results promptly, empowering you to make informed decisions without delay. I'm passionate about helping people harness the potential of web scraping to gain a competitive edge. Let's collaborate and turn data into actionable insights. Contact me today to discuss your requirements and embark on a data-driven journey towards success.JavaRegex WritingInformation TechnologyBash ProgrammingWeb ScrapingWeb CrawlingMicrosoft OfficeData ExtractionScreen ScrapingInformation SecurityMicrosoft ExcelOperating SystemTech & ITMicrosoft Windows PowerShellPython - $75 hourly
- 5.0/5
- (13 jobs)
I am a software developer and consultant with 25+ years of broad experience. I am currently focused on web applications and iPhone/Android mobile apps and games. My clients are small to medium organizations as well as design agencies and freelancers needing help with their client projects. I am a principal at Supercosm LLC in Seattle and a member of the digital arm of Local No. 12, an experimental game design collective. I take a thoughtful approach to all projects. I am adept as balancing the competing needs of budget, time, and scope, and my focus is always on solving the problem at hand rather than any specific technology. I desire long term relationships and many of my clients are repeat customers that have been with me for many years. Web Development I work with clients as well as other designers and developers in roles from architecting and building entire web applications to solving specific technical problems on short notice. CakePHP and Laravel are my current platforms of choice, but I also have experience building web apps in Java+Spring and, more recently, Node.js + Elasticsearch, and Magento, among others. I can work on very specific parts of a project, build an entire site or app from design documents, or help you take an idea all the way from discovery to launch. Mobile and Game Development I have 10+ years experience developing native iOS apps and games and have also done some Android work. As part of Local No. 12, I led development of Dear Reader, an award-winning launch title on Apple Arcade in September 2019. I have also developed, launched and continue to maintain numerous iOS/iPadOS/tvOS apps for clients.JavaFull-Stack DevelopmentMySQLiOS DevelopmentCakePHPWeb DevelopmentLaravelLinux System AdministrationData ScrapingReactMagento 2JavaScriptAndroidPHPPython - $40 hourly
- 0.0/5
- (0 jobs)
Experienced with the Unity 3D IDE and the development process for rapid prototyping and turning out quality products.JavaUnreal EngineASP.NET MVCUnityData AnalysisRapid PrototypingCC++C# - $47 hourly
- 0.0/5
- (1 job)
Software Developer with a strong background in Javascript, React, Functional and Object-Oriented Programming, RESTful APIs, Git, and Responsive Design. Experience with Java, Spring Framework and AWS, working with high-scale, high-availability distributed systems.JavaReactHTMLMySQLNode.jsMongoDBJavaScriptSpring FrameworkAmazon Web ServicesCSS - $20 hourly
- 5.0/5
- (1 job)
I am a quick learner with experience in the business world. I am proficient in Excel, Word, and Powerpoint I have basic Java skills and excellent communication skills.JavaSalesOutbound SalesSales PresentationB2B MarketingBusinessMicrosoft PowerPointProject ManagementSalesforceMicrosoft WordMicrosoft ExcelCommunications - $55 hourly
- 0.0/5
- (0 jobs)
I am an AWS Solutions Architect with professional experience at Amazon building and deploying microservice-based applications at scale.JavaGolangAmazon DynamoDBPythonAmazon Web ServicesTypeScript - $60 hourly
- 0.0/5
- (0 jobs)
Software Engineering Manager with 10+ years of full stack development experience. I've worked with cross functional teams, developed engineers' professional growth, and designed scalable microservices and APIs. I'm a passionate problem solver and eager to learn new technologies and frameworks to make products work better.JavaC#C++JavaScriptCGolangApache SolrElasticsearchReactLeadership CoachingMicrosoft AzureAmazon Web ServicesDockerKubernetesGoogle Cloud Platform - $35 hourly
- 4.5/5
- (4 jobs)
I'm a strong JavaScript/TypeScript/Python developer. I have extensive experience building a solid backend+setting up a database, and I'm just as comfortable creating a modern, responsive website. I worked for Microsoft for 5 years, and as a Senior Engineer+tech lead for the fintech company Lively HSA. I also love writing utility scripts and making internal desktop apps, especially converting data files from one format to another. I can contribute to your project and help bring your ideas to life!JavaAudio EditingVideo EditingDatabase DesignC++LinuxNode.jsReactHTML5Google Cloud PlatformJavaScriptCSS 3C#PythonAmazon Web Services - $50 hourly
- 0.0/5
- (0 jobs)
Full Stack Developer and system administrator with over 6+ years of experience in software engineering and developing new features and apps for different products and companies by using programming tools like Laravel, Ruby on Rails, Express JS, HTML, CSS, Node JS, React JS, Vue JS and Angular. Longtime Shopify expert, I have 6+ years of experience on the Shopify and Shopify Plus platform, I'm well versed and experienced on every aspect of the platform. Capable of analyzing customer feedback in order to find the best way to create new and enhance the existing product features. Will Always Be With You and Provide High Quality and Friendly Service. My core skills include: - Backend * Node.js/MogngoDB/ExpressJS * Ruby/Ruby on Rails * Mysql/PostgreSQL * php/CI/Symfony/CakePHP/Laravel - Front End * React JS/ Next.JS / Redux / React Native * Vue/nuxt.js * Wordpress/ Shopify/Woocomerce/Squarespace/Opencart * Javascript/Jquery * HTML/CSS, SCSS, SASS, Bootstrap, TailwindCSS - Other Services * Github, Bitbucket, Gitlab, * Microservices, GraphQL, RESTful API, System Administrator. Let me help you to grow your business successfully.JavaNestJSAWS Amplify.NET FrameworkNuxt.jsPHPLaravelPythonNode.jsGatsby.jsNext.jsVue.jsReactWeb DevelopmentJavaScript - $40 hourly
- 0.0/5
- (0 jobs)
I'm a full-stack developer experienced in building enterprise software applications. Let me help you develop the business software you need! - Knows Java, JavaScript, Angular, C# - Experience with .NET systems and Azure ecosystem - Skilled communicatorJavaTest DevelopmentGame DevelopmentUnityAngularJavaScriptTypeScriptC#Back-End DevelopmentWeb Development - $60 hourly
- 0.0/5
- (0 jobs)
PROFESSIONAL SUMMARY * Software Engineer with over 4+ years of experience in designing, developing, and optimizing high-performance applications. * Skilled in Java, with a strong background in system architecture, API design, and complex software solutions. * Proven track record of leading cross-functional teams to deliver robust, scalable, and innovative applications within agile environments. Known for a proactive approach to problem-solving, driving quality standards, and enhancing system performance. * Adept at collaborating across teams, and implementing best practices in code quality, security, and DevOps. Passionate about translating complex requirements into seamless, efficient, and impactful software solutions. AREAS OF EXPERTISE * Proficiency in developing application end-to-end using Java, React. * Frameworks: Spring Framework.JavaProblem SolvingSwaggerREST APIMicroserviceReactGitHubKibanaElasticsearchAmazon S3Amazon DynamoDBAWS DevelopmentSpring BootWeb DevelopmentWeb Application - $40 hourly
- 0.0/5
- (0 jobs)
Hi, I’m a software engineer with 6 years of experience building dynamic, user-friendly applications and solving challenging technical problems. I thrive on creating solutions that make life easier for users and businesses alike. Whether it’s designing scalable systems or optimizing performance, I’m all about writing clean, efficient code and staying curious about the latest tech. Skills Programming Languages: JavaScript, TypeScript, Python, Java Frameworks & Libraries: React, Angular, Node.js, Express, Django, Spring Boot Cloud & DevOps: AWS (Lambda, S3, EC2), Docker, Kubernetes, CI/CD pipelines Databases: PostgreSQL, MySQL, MongoDB, Redis Development Practices: Test-Driven Development (TDD), Agile methodologies, Git workflows Other Tools: RESTful APIs, GraphQL, WebSockets, ElasticsearchJavaReactJavaScriptPythonNode.js - $50 hourly
- 0.0/5
- (0 jobs)
Hi! I am a student at University of Washington majoring in Applied and Computational Mathematical Sciences with data science minor. I am passionate about developing VR/AR programming, Unity(game), and accessibility technologies. I have various programming experiences through diverse projects, hackathons, and research. These experiences helped me enhance my communication skills in a team-based projects, adaptability in a fast-paced working environment, and professionalism.JavaUnityC#C++CAlgorithmsAlgorithm DevelopmentData StructuresDatabaseData AnalysisData ScienceDeep LearningMachine LearningSQLPython - $90 hourly
- 0.0/5
- (0 jobs)
I build tooling and web applications for businesses, with 10+ years of experience building software for companies of all sizes. Skilled in Python, Java, Ruby, HTML, JavaScript, CSS, C and C++. Excellent communicator across teams; well-versed in Agile (Scrum/Kanban) and Lean methodologies. Professional background in full stack development, and high-throughput data processing, as well as an active engagement in personal projects. Current areas of professional focus include building a great user experience (design to implementation), integration testing for continuous delivery, and developing for high-scale apps - used by millions of users and receiving thousands of requests per second. Well-versed in interfacing with business and working across teams.JavaApp DesignCSSHTMLReactJavaScriptRubyRuby on RailsDjangoPythonScriptingProduct DevelopmentWeb ApplicationWeb Development - $160 hourly
- 0.0/5
- (0 jobs)
I specialize in debugging thorny problems, profiling GPU applications and understanding & cleaning up codebases. I have proven communication skills, being the author of a book on VR development and having given presentations at the PAX Dev and GDC conferences on the topic of user interface in virtual reality. My super-power is a proven knack for diving deep into any problem to find solutions or root causes that may elude others.JavaApp DevelopmentDesktop ApplicationWeb DevelopmentWeb ApplicationAndroid App DevelopmentQt FrameworkTypeScriptPythonGPUOpenGLC++Cloud Development - $80 hourly
- 0.0/5
- (0 jobs)
Software Development Manager Software Development Manager, specialized in IOT, embedded firmware, motor control and edge applications.JavaProduct ManagementDistributed ComputingEdge ComputingEmbedded CScrumArtificial Intelligence - $70 hourly
- 0.0/5
- (0 jobs)
Meet Owen Rubel, a dynamic innovator in software architecture with a proven record of creating groundbreaking solutions in APIs and distributed systems. Owen is not only a pioneer in API's but also a key influencer in shaping AWS Step Functions, enhancing the way cloud systems interact. Owen’s career is marked by several industry-defining contributions, including: ◦ Sole inventor of API chaining (introduced in 2014), a paradigm-shifting concept presented at the prestigious SpringOne Java conference in 2015. ◦ Collaboration with AWS architects to identify and resolve fundamental limitations in Lambda function communication, paving the way for the development of Step Functions. ◦ A member of the founding team at Amazon (1995–1998), contributing to the company's earliest and most pivotal years. Owen's expertise goes beyond innovation. He combines unparalleled analytical capabilities with a profound understanding of API and system architecture, setting him apart as a technical leader who delivers results. ◦ Deep knowledge of API systems and distributed architectures. ◦ Proven track record of overcoming complex technical challenges. ◦ History of driving efficiency and scalability in cloud computing environments. Discover the advantage of having Owen Rubel on your team. With his experience, creativity, and drive for excellence, he’s not just a hire—he’s an investment in the future of your technology. Let’s build the next big thing together!JavaMongoDBOAuthHibernateMariaDBMySQLApache GroovySolution ArchitectureSpring BootJenkinsApache TomcatSpring SecurityAmazon EC2MicroserviceAPI Development Want to browse more freelancers?
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