Hire the best Java Developers in California

Name: Java developers
Brand: Upwork
Rating: 4.7 (398 reviews)

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Clients rate Java developers

4.7/5

based on 398 client reviews

$60 hourly
Anthony T.
- 5.0/5
- (12 jobs)
I’m a multilingual PERN Full-Stack Developer with 3 years of professional work experience working at some of the largest gaming companies in the world, as well as a few start-ups. My biggest strengths are JavaScript, SQL, Html, CSS Java, NodeJS, Express.JS, ReactJS, PostgreSQL, Spring Framework, Thymeleaf, Bootstrap, Python, Heroku, Cloudflare, Selenium, Firebase, and REST API. I have experience working in Full-Stack development, as well as web automation.

Java
PostgreSQL
ExpressJS
Tailwind CSS
Thymeleaf
React
Node.js
Selenium
Spring Framework
Bootstrap
JavaScript
CSS
HTML
SQL
Python
$60 hourly
Ryon L.
- 5.0/5
- (53 jobs)
Working with cloud based serverless systems, writing firmware, designing pcbs, developing web apps, coding in python and others (c,c++,flutter/dart,php,html5,java,javascript,sql,nosql,etc.), providing exceptional service, and maintaining attention to detail. Desktop: Linux focused but can provide code for other platforms. (and flutter apps) Backend: AWS focused, lambda, api gateway, dynamodb, cognito Hardware: circuit design, pcb design, PCBA Firmware: work with various MCU's, familiar with multiple frameworks,sdk's,idk's Mobile: Android native and flutter development MCU's: esp32, nRF52, nRF53, nRF91, smt32, rp2040, + others (TI, Microchip) IoT hardware and firmware design: 4g, BLE, WiFi, Lora, GPS, Matter, Mesh

Java
Embedded Linux
Electrical Engineering
Android
Amazon Web Services
C
C++
Python
PHP
$56 hourly
Steven H.
- 5.0/5
- (12 jobs)
Languages: Kotlin, Java, Swift, Python Frameworks/Libraries: Android SDK, Jetpack Compose, SwiftUI / UIKit, Retrofit, Gson, Glide, OpenGL ES Tools: Android Studio, Xcode, Google Play Console, App Store Connect, CircleCI, Git, GitHub Actions Practices: MVVM, Clean Architecture, Agile/Scrum Firebase: Analytics, Auth, Crashlytics, Realtime DB, Firestore, GeoFire Other: Streamlit, PDF-to-image processing, Ollama multimodal-LLMs

Java
English
Email Etiquette
Technical Support
Mobile UI Design
Mobile App Testing
Swift
iOS Development
Kotlin
Android App Development
$75 hourly
Zohaib A.
- 5.0/5
- (13 jobs)
As an Upwork Expert Vetted Silicon Valley Engineer I am among the top 1% talent on Upwork. I have a Job Success Score of 100% which means, every client has been fully satisfied with my services. With over 10+ years of experience as a Senior Software Engineer, I have had the unique opportunity to work in very diverse roles. I have built products from the ground-up and helped scale them for planetary scale. I have worked for companies in Silicon Valley, Boston, New York City and other tech centers around the world. I have worked with companies and teams of all sizes, from Fortune 100 companies to exciting startups. I have in-depth experience of developing large scale web and mobile applications using lean and agile methodologies. Technology Stack: • Backend - Python, Node.js and Java Spring Boot • Web Frameworks - React JS, Angular and Vue • Mobile Development - React Native • Databases - Majority of the Relational and NoSQL Databases. MySQL, PostgreSQL, MongoDB, Cassandra, Yugabyte to name a few. • Cloud - AWS, Azure and Google Cloud

Java
React Native
Mobile App Development
API
Database
Spring Boot
Web Development
Web Application
Amazon Web Services
JavaScript
MongoDB
Spring Framework
React
MySQL
Node.js
$99 hourly
nate b.
- 5.0/5
- (3 jobs)
CxO / Agile Technical Project / Product Manager / Software Engineer Look me up on LinkedIn | LosAngelesCTO Let's Talk!

Java
Golang
Git
Flutter
Symfony
React Native
Python
Blazor
TypeScript
.NET Core
Azure DevOps
Google Cloud Platform
Amazon Web Services
Agile Project Management
$56 hourly
Riley R.
- 4.5/5
- (19 jobs)
I am a visual effects artist and 3D Compositor that has worked on various projects including motion picture and commercial work. I have experience in areas including object insertion, tracking, rotoscoping, chroma keying, color correction, simulations and much more in both live action and fully 3D environments. I have experience both working in large teams on projects as well as being the sole artist on multiple occasions. My workflow often includes applications such as After Effects, Cinema4D, Redshift, X-Particles, Mocha, and Red Giant Suite for VFX as well as Adobe Audition for sound effects when necessary.

Java
Animated Environment
Visual Effects
Compositing
Audio Effects
Adobe Photoshop
Green Screen
Adobe Inc.
Visual Art
Special Effects
Keying
Animation
Adobe Premiere Pro
Maxon Cinema 4D
Adobe After Effects
$80 hourly
Gleb K.
- 4.8/5
- (6 jobs)
Over 10 years of experience in backend, mobile, desktop, and cross-platform development with a myriad of languages & platforms for major software companies in the bay area and around the world. Strong background in advanced algorithms, data structures & high-performance multithreading. Specialization in advanced build tooling including Bazel, Buck & Pants, and a leading Bazel community expert with proven expertise in porting many millions of lines of code to build & test with Bazel.

Java
Buck
Golang
Build Automation
Reactive Programming
Android SDK
iOS Development
Kotlin
Scala
Swift
C++
$45 hourly
Manbir K.
- 5.0/5
- (6 jobs)
★★★★𝐇𝐞𝐥𝐥𝐨, 𝐈'𝐦 𝐌𝐚𝐧𝐛𝐢𝐫 𝐊𝐚𝐤𝐤𝐚𝐫, 𝐒𝐞𝐧𝐢𝐨𝐫 𝐢𝐎𝐒/𝐀𝐧𝐝𝐫𝐨𝐢𝐝 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫|𝐁𝐚𝐜𝐡𝐞𝐥𝐨𝐫 𝐢𝐧 𝐂𝐨𝐦𝐩𝐮𝐭𝐞𝐫 𝐬𝐜𝐢𝐞𝐧𝐜𝐞 | ★★★★ Harvards University Certified ★★★★ I am an accomplished Mobile App Developer specializing in native and cross-platform solutions. With extensive experience in Android (Java/Kotlin), iOS (Swift), and Flutter (Dart), I am committed to delivering high-quality mobile applications that are not only user-friendly but also scalable and optimized for performance. 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝐈 𝐎𝐟𝐟𝐞𝐫: - 𝐂𝐮𝐬𝐭𝐨𝐦 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭:From ideation to deployment. - 𝐀𝐩𝐩 𝐑𝐞𝐯𝐚𝐦𝐩 𝐚𝐧𝐝 𝐑𝐞𝐝𝐞𝐬𝐢𝐠𝐧: Modernize and enhance existing apps. - 𝐎𝐧𝐠𝐨𝐢𝐧𝐠 𝐌𝐚𝐢𝐧𝐭𝐞𝐧𝐚𝐧𝐜𝐞 𝐚𝐧𝐝 𝐒𝐮𝐩𝐩𝐨𝐫𝐭: Continuous improvements and updates. - 𝐓𝐞𝐬𝐭𝐢𝐧𝐠: I take testing seriously and will ensure that your app or website is thoroughly tested before deployment. 𝐒𝐤𝐢𝐥𝐥𝐬𝐞𝐭 / 𝐓𝐞𝐜𝐡 𝐬𝐭𝐚𝐜𝐤: ◉𝐢𝐎𝐒: Swift, Objective-C, UIKit, SwiftUI, RxSwift, XCText, Metal, ARKit, Vision OS, CoreML, Core data, CoreAnimation, Firebase, Push & Local Notification, Grand Central Dispatch (CGD), Cocoa pods, Package Manager, ◉𝐀𝐧𝐝𝐫𝐨𝐢𝐝: Kotlin, Java, Moxy, Clean, MLKit, ARCore, Android Jetpack Components, Android Architecture Components, Retrofit, Glide/Picasso ◉𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 𝐚𝐧𝐝 𝐬𝐭𝐨𝐫𝐚𝐠𝐞: Database: SQLite, MySQL, MongoDB, AWS DynmoDB ◉𝐈𝐨𝐓: Bluetooth, BLE(Bluetooth Low Energy), MQTT, Wifi ◉ 𝐀𝐏𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧: AWS API Gateway, AWS Lambda, Rest API, JSON, XML ◉ 𝐒𝐨𝐜𝐢𝐚𝐥 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧: Facebook, Twitter, Youtube, Instagram, Snapchat, Tinder ◉ 𝐏𝐚𝐲𝐦𝐞𝐧𝐭 𝐆𝐚𝐭𝐞𝐰𝐚𝐲𝐬: Paypal, Braintree, Stripe ◉ 𝐂𝐡𝐚𝐭: XMPP, Socket, Firebase, Twilio ◉ 𝐈𝐧-𝐚𝐩𝐩 𝐅𝐞𝐚𝐭𝐮𝐫𝐞𝐬: In-App Purchase, Advertisement, Push Notifications, GCM, Google Analytics ◉ 𝐕𝐞𝐫𝐬𝐢𝐨𝐧 𝐂𝐨𝐧𝐭𝐫𝐨𝐥 𝐓𝐨𝐨𝐥𝐬: Github, Bitbucket, Gitlab ◉ 𝐆𝐨𝐨𝐠𝐥𝐞 𝐌𝐚𝐩, 𝐀𝐩𝐩𝐥𝐞 𝐌𝐚𝐩 𝐤𝐢𝐭, 𝐆𝐞𝐨𝐥𝐨𝐜𝐚𝐭𝐢𝐨𝐧, 𝐆𝐏𝐒, 𝐋𝐨𝐜𝐚𝐭𝐢𝐨𝐧 𝐓𝐫𝐚𝐜𝐤𝐢𝐧𝐠 🎯Key Milestones: ✔️ 11+ Years of Experience in Mobile app Development ✔️ 100+% Job Success (𝟏𝟎𝟎% 𝐂𝐥𝐢𝐞𝐧𝐭 𝐒𝐚𝐭𝐢𝐬𝐟𝐚𝐜𝐭𝐢𝐨𝐧 𝐑𝐚𝐭𝐢𝐨) ✔️ 100% of Clients Recommended working with me ✔️ 90% Long-term Client Retention. ✔️ 24x7 Support ✔️ High-Quality Work ✔️ Cost-Effective ✔️ Fluent English ✔️ Available to start the next day after you first text me! ✔️Architectural excellence with MVVM, MVP, MVI, and VIPER. ✔️Transparent updates and effortless communication, ensuring you're always in the loop. I'm your expert app developer, from startup launches to app revamps and ongoing maintenance. Let's create innovative solutions together! 🚀📱 Contact me now to bring your vision to life! 🔑𝐊𝐄𝐘𝐖𝐎𝐑𝐃𝐒: Native app development | Cross-platform app development | ChatGPT | Chat GPT Integration | App performance optimization | Mobile App Development | Mobile App Developer | Flutter App | Flutter Developer | Flutter Firebase | Flutter Dart | Flutter App Developer | BLE | BLUETOOTH LOW ENERGY App | Wearable apps |App Developer | Mobile Developer | React Native | React Native Mobile App Development | Mobile App Builder | Flutter App Developer | Mobile App Developer | Flutter App | Flutter Developer | Flutter flow | AI | Chat-boot | SAAS Products | Flutter Laravel | Mobile App Development | Push Notifications | Java | Kotlin | Firebas | Animation | AI Chatbot | Image Processing

Java
Python
Mobile App
SQL
AWS Development
Objective-C
GameKit
iOS
Swift
Native App Development
Android
React Native
Firebase
Flutter
Kotlin
$40 hourly
Ming L.
- 4.9/5
- (8 jobs)
As an accomplished Data Scientist, I bring extensive expertise in Machine Learning, Data Analysis, and Natural Language Processing. With a solid foundation in developing and deploying advanced models, I have successfully driven significant enhancements in content organization, data migration, and predictive analytics. My experience includes leveraging state-of-the-art machine learning techniques, such as topic modeling and sentence embeddings, to deliver actionable insights and improve decision-making processes. Main Focus: ✔ Natural Language Processing & Text Analytics: Advanced expertise in utilizing LLMs, such as ChatGPT, for precise topic tagging, content categorization, and developing NLP applications that boost website functionality and traffic. ✔ Machine Learning: Proven skills in time-series forecasting, clustering, and classification using deep learning frameworks like PyTorch and TensorFlow. ✔ Data Science: Strong background in understanding data patterns and trends, with a focus on designing and implementing effective data visualizations and dashboards. ✔ Cloud Computing & Big Data: Proficiency in managing and migrating large datasets using SQL, MongoDB, BigQuery, and deploying scalable solutions on AWS. ✔ API Development & Deployment: Experienced in building and containerizing APIs with FastAPI for seamless deployment and scaling across cloud environments. Technical Expertise: ✅ Cloud Services: Skilled in AWS (SageMaker, Lambda, S3, EC2) and containerization with Docker for efficient deployment and application scaling. ✅ Big Data Tools: Expertise in SQL, MongoDB, Hadoop, and Spark for handling large-scale data processing and storage. With a keen eye for detail and a passion for innovation, I am confident in my ability to contribute meaningfully to your project. Let’s discuss how I can help you achieve your goals.

Java
Large Language Model
spaCy
FastAPI
Artificial Intelligence
Generative AI
pandas
Python
NumPy
PyTorch
Deep Learning
SQL
Natural Language Processing
Machine Learning
$65 hourly
Dean M.
- 5.0/5
- (12 jobs)
Software Engineer with 8 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.

Java
Front-End Development
Back-End Development
Embedded System
Autodesk Fusion 360
Linux
SolidWorks
JavaScript
Testing
C
Python
$100 hourly
Jun X.
- 5.0/5
- (39 jobs)
We are a US-based team providing AI voice agent solutions and consultations (you can find "AI Voice Agent Consultation" in the project catalog). Solutions: we have built ~15 AI voice agents for different inbound/outbound call use cases, like 1. AI phone answering service 2. AI receptionist 3. Customer support 4. Lead qualification 5. Cold call 6. Live translator Consultation: We help you develop a strategy, execution plan, or framework—covering AI voice agents and automation—so you can implement and improve the AI voice agents based on your domain knowledge. Our solution is either on top of existing voice engine platforms (like Bland, Synthflow, VAPI, or Retell), or a customized AI voice solution (using STT, LLM and TTS) for your business need.

Java
JavaScript
Video Editing & Production
Python
Large Language Model
Generative AI
Natural Language Processing
Computer Vision
Machine Learning Model
Artificial Intelligence
$50 hourly
Ryan L.
- 5.0/5
- (4 jobs)
I'm a engineer experienced in build data and software products. Whether you're trying to build data pipelines, CI/CD workflows, or create new websites, i can help. * Experienced in databricks and spark - building end to end data products including data pipeline, CI/CD workflow, operational tools. * Experienced in build websites or applications - especially in Java, Python

Java
Ecommerce Website
Script
Scripting
Web Application
React
Scala
CI/CD
Python
Git
Apache Airflow
Databricks Platform
Big Data
Web Development
PySpark
$60 hourly
Marissa R.
- 5.0/5
- (2 jobs)
I am an skilled software engineer with over a decade of experience specializing in designing and developing high-quality mobile applications for both iOS and Android platforms. My key skills include: * iOS Development: Swift, SwiftUI and UIKit framework. * Android Development: Java, Kotlin * Cross-Platform Development: Proficient in Flutter and React Native * Back-End Development: AWS, Firebase, Node.js I have delivered solutions across the finance, insurance, and legal sectors, including a collaboration app for lawyers, a fitness app integrating data from multiple devices, mobile wallets using advanced technologies, ride-sharing platforms, and enterprise-level location tracking solutions for global clients.

Java
RESTful API
MongoDB
Android
Android App
iOS Development
Firebase
GraphQL
Node.js
SwiftUI
React Native
Flutter
Kotlin
Swift
$43 hourly
Albert M.
- 5.0/5
- (1 job)
Hello there! 👏 I come with 9+ years of professional experience in MERN (MongoDB, Express.js, React, Node.js) stack and ASP.NET Core. I'm skilled in building scalable, high-performance web applications, from dynamic, user-friendly front-ends with React to robust, efficient back-ends with Node.js and .NET. Are you looking to - Launch your startup off the ground with a state-of-the-art web application? - Optimize your website for speed, scalability, and security? - Fix a nagging bug or improve your application's performance? I'm here to help. I bring a results-oriented approach to every project, delivering clean, maintainable, and efficient solutions that meet your business needs. Whether you need a new application, an API integration, or a complete overhaul of your existing system, I've got you covered. Skills: 👔 React.js, Next.js, Angular, Vue.js, Ant Design, Material UI, Tailwind CSS, Bootstrap ⚙️ Express.js, Node.js, Nest.js, .NET Core, ASP.NET MVC, Spring ⚙️ REST APIs, GraphQL, WebSocket ⚙️ ASP.NET Identity, OAuth 2.0, JWT, Passport.js 💼 MongoDB, DynamoDB, MySQL, PostgreSQL, Firebase, SQL Server 💼 Entity Framework, Prisma, Sequelize ☁️ Vercel, AWS (S3, Lambda, EC2), Heroku, Google Cloud (Cloud Functions), Azure ☁️ Docker, GitHub Actions, Terraform, Kubernetes, Azure DevOps, Jenkins 🌏 Git, GitHub, GitLab, Azure DevOps, Bitbucket 🌏 Jira, Zeplin, Figma, Adobe XD, Trello I'm committed to delivering on time and exceeding expectations. Feel free to reach out—let’s discuss your project in detail and plan the next steps. Click ‘Invite’ or ‘Message’ to get started! 🚀

Java
Bot Development
Flutter
React
HTML
API
.NET Framework
C#
PHP
Mobile App Development
JavaScript
Web Development
WordPress
Python
Node.js
$80 hourly
Armen M.
- 5.0/5
- (2 jobs)
🧩 Technical Skill Set Overview ⦿ Languages: Proficient in TypeScript, JavaScript, C#, Java, Python, HTML, CSS, and SQL. ⦿ Frontend Frameworks & Tools: Experienced with React, Angular, Next.js, Vue.js, Nuxt.js, Redux, Pinia, Material-UI, Tailwind CSS, Bootstrap, and Semantic UI to craft modern, responsive user interfaces. ⦿ Backend Technologies: Skilled in building APIs and server-side logic using Node.js (Express.js, NestJS), C# (.NET Core, ASP.NET), Java, and Python (Flask, Django, FastAPI), with REST and GraphQL support. ⦿ Mobile Development: Capable of developing cross-platform mobile apps using React Native and Flutter. ⦿ Database Systems: Deep understanding of PostgreSQL, MySQL, MongoDB, Redis, and SQL Server for robust data modeling and management. ⦿ API Integration Experience: Integrated with Stripe, social platforms (Google, Facebook, Twitter), HubSpot, and serverless APIs built on AWS Lambda. ⦿ Cloud Infrastructure & DevOps: Hands-on experience with AWS (Lambda, EC2, S3, RDS, CloudFront), Azure (Functions, App Services, Storage), Docker, Kubernetes, Jenkins, Git, and end-to-end CI/CD pipelines. ⦿ Data & Event Systems: Solid grasp of ETL workflows, data validation, metadata APIs, and asynchronous/event-driven architectures using Kafka and RabbitMQ. 💎 Core Expertise Highlights ⦿ End-to-end full-stack web application engineering. ⦿ Scalable backend design with event-driven microservices. ⦿ Responsive front-end development using modern JS frameworks. ⦿ RESTful and GraphQL API architecture and third-party integrations. ⦿ Building and deploying cloud-native applications with Azure and AWS. ⦿ System performance tuning and application security enhancement. ✨ As a Senior Full-Stack Developer, I deliver technically robust and business-aligned solutions across the entire software lifecycle. With deep experience in both frontend and backend technologies—from React and Angular to Node.js, .NET, Java, and Python—I’m focused on delivering clean, scalable code and reliable architectures that drive product success. Beyond development, I have a strong command of cloud computing, CI/CD automation, API strategy, and DevOps practices. Whether working on a greenfield platform or modernizing legacy codebases, I prioritize performance, security, and maintainability at every stage. My commitment lies in solving real-world challenges through pragmatic, efficient, and forward-thinking engineering.

Java
Desktop Application
Flutter
React Native
Django
Python
JavaScript
TypeScript
C#
Amazon Web Services
Microsoft Azure
ASP.NET
Node.js
Angular
React
$35 hourly
Jenis S.
- 4.8/5
- (98 jobs)
I am a Los Angeles-based Professional with 17+ years of work experience where I took roles of Full Stack Developer, Project Manager, Solutions Architect, Team Lead, DevOps Engineer, Project Consultant, Cloud Consultant, Cloud Architect, etc. I have a rich portfolio of Web and Mobile Apps(both iOS and Android). ***************** I have led Projects for well-known companies like Sony Pictures, Paramount Pictures, 20th Century Fox, Prince Cruise Line(PCL), Masimo, and Creative Artist Agency. ***************** As a Full Stack Developer/Team Lead/Project Manager/Solutions Architect I have extensive experience with a Web application, Mobile Applications, Desktop Application Development, UI/UX Design, Tech Support, Cloud Architect, and Consulting Projects involving technologies like Wordpress, PHP, Java, Python, C#, Javascript, React, Angular, Node.js, Express.js, Shopify, Swift, Objective-C, React Native, AWS, GCP, Microsoft Azure, etc. - Build and develop the project team to ensure maximum performance, providing purpose, direction, and motivation. - Lead projects from requirements definition through deployment, identifying schedules, scopes, budget estimations, and project implementation plans, including risk mitigation. - To coordinate internal and external resources, ensuring projects remain within scope, schedule, and defined budgets, in collaboration with project staff from various functional departments. - Analyze project progress and, when necessary, adapt scope, timelines, and costs to ensure that the project team adheres to project requirements. - Establish and maintain relationships with appropriate client stakeholders, providing day-to-day contact on project status and changes As DevOps/Cloud Engineer I have extensive experience in designing, implementing, and maintaining complex Cloud-based infrastructure with a focus on security, scalability, and high availability. AWS Services: Deployment Automation: Proficient in automating deployment processes using AWS CloudFormation, Terraform, and Ansible to reduce errors and improve speed. Continuous Integration and Delivery: Skilled in setting up CI/CD pipelines using AWS CodePipeline, AWS CodeBuild, and Jenkins for automated build, test, and deployment processes. Monitoring and Alerting: Capable of setting up monitoring systems using AWS CloudWatch, Prometheus, and Grafana to identify performance issues proactively. Security and Compliance: Knowledgeable in implementing security best practices and automated compliance checks using AWS Config and AWS Security Hub. Cost Optimization: Experienced in optimizing AWS spending using tools like AWS Cost Explorer, AWS Budgets, reserved instances, spot instances, and auto-scaling. Microsoft Azure Services: DevOps Strategies: Proficient in designing and implementing effective DevOps strategies using Microsoft Azure for continuous integration, delivery, and deployment. Infrastructure Provisioning and Configuration: Experienced in provisioning and configuring Azure infrastructure using tools like Azure Resource Manager (ARM) templates and Terraform. Continuous Integration and Continuous Deployment (CI/CD): Skilled in establishing CI/CD pipelines using Azure DevOps for automated build, test, and deployment processes. Automation and Orchestration: Capable of automating tasks and processes using PowerShell, Azure CLI, Azure Automation, and Azure Logic Apps to streamline operations. GCP Services: Deployment Automation: Proficient in automating deployment processes using tools like Google Cloud Deployment Manager and Terraform to ensure consistency and reliability. Continuous Integration and Delivery: Skilled in setting up CI/CD pipelines using Cloud Build and Jenkins on GCP for automated testing, building, and deployment of applications. Monitoring and Alerting: Capable of implementing monitoring and alerting systems using Stackdriver Monitoring and Stackdriver Logging to identify and resolve issues promptly. Security and Compliance: Knowledgeable in implementing security controls and compliance standards using GCP Identity and Access Management (IAM) and Security Command Center. Cost Optimization: Experienced in optimizing costs on GCP using tools like Cost Explorer and Budgets, as well as utilizing features like sustained use discounts and preemptible VMs to minimize expenses. *****************

Java
Node.js
Amazon Web Services
Shopify
Mobile App Development
Angular
Web Application
Python
Android App Development
PHP
BigQuery
iOS Development
Microsoft SQL SSAS
Amazon Redshift
Microsoft Azure
$99 hourly
Stephen S.
- 5.0/5
- (61 jobs)
👨‍💻 Well hello there! Thanks for checking out my profile. A little about me: I have nearly 20 years experience as a software developer working for large fortune 500 companies. Now I spend most of my time doing freelance work building Google Apps Scripts projects for clients. I have an eye for design and love building sleek and attractive apps. In my heart I'm half engineer, half artist and love combining the two disciplines to bring an idea to life. Reasons to team up with me: 🎨 Aesthetic designs 🔧 Reliable and long lasting engineering solutions 📱 Automation and workflow improvements ⚙️ User friendly configurations 🔮 Fortune telling for your business! (Okay, okay...I jest, I jest) I specialize in Google Workspace products: ✔️ Google Sheets ✔️ Gmail ✔️ Google Forms ✔️ Google Calendar ✔️ Google Docs ✔️ Google Slides ✔️ Web apps ✔️ etc. I can integrate all of these and other GSuite/GWorkplace products for you as well as creating interfaces to other products outside of Google via APIs. Some commonly requested API connections to various platforms: ✔️ Quickbooks ✔️ Wise ✔️ Stripe ✔️ Zapier ✔️ Webhooks ✔️ OAuth 2 and other authentication schemes I'm have been able to bring my career as a Full Stack Developer to bear on the Google Workspace/Apps Script environment and deliver solutions to clients that are efficient, tested, and functional. There are many developers that can code a solution that works, but it's also important to find someone that does proper design work and chooses the best out of many possible solutions so the deliverable runs efficiently and has longevity. I can't tell you how many times I've had clients come to me to fix a poorly designed app that needs an overhaul. Given my software and math background I can build just about anything for you if it's possible, and I'm also good at suggesting new workflows, simplifications, and other solutions to streamline your work, and automate as much as possible so you can be creative with your business, and not busy with it. I'd love to hear your needs and challenges and see how I can help you. Give me a shout! Steve A few reviews 📝 ⭐⭐⭐⭐⭐: "Stephen is an absolute ROCK STAR! He is literally the BEST freelancer I have ever used on UpWork over well more than 10 years across multiple companies. We wanted to automate the creation of a daily KPI report we use to monitor our business. We have a team member that was spending 5 hours per day completing it. He was using data pulled from 4 or 5 different software applications. Our team member now spends about 1 hour per day and the other 4 hours per day is automated so he is freed up to work on other things now. We love it and our team member REALLY loves it! Stephen set the appropriate expectations about the project up front. He overcame multiple challenges. He created detailed video instructions for our team on how to use the final KPI and complete the information. He delivered so MUCH more than he promised. This is just the first project of many we will do with him. I didn't know he was the right choice when I hired him because he seemed similar to several others. WOW, he was worlds better than I could have imagined!" "All I can say is WOW! Stephens skills are absolutely incredible the attention to details and execution of this task was 2nd to none. One of the best freelancers we have ever used and will definitely be working with him again! Thanks again Stephen!" "Stephen was simply outstanding to work with and I will 100% be hiring Stephen again for future projects. In this particular project, Stephen was helping my team rebuild a pacing doc used every day by 150 sales professional who generate $200m annually. On top of his expertise, patience and determination to deliver, his biggest strength is his reliability. Stephen will get the job done. This project spanned six weeks and right over the holiday season and Stephen never failed to deliver and in all cases over delivered." "Working with Stephen was a absolute pleasure. He met and surpassed my expectations and added so much valuable input on how to structure things in the best and clearest way. I appreciated the continuous communication throughout and Stephen worked hard to get this involved project completed earlier then expected. Very skilled and a terrific person to work with!! I look forward to working with Stephen in the near future on the next phase of our project. Thank you!!"

Java
Special Effects
Writing
Video Editing
Google Apps Script
Content Writing
Copywriting
Web Development
CSS
HTML
JavaScript
$70 hourly
Francisco B.
- 4.9/5
- (26 jobs)
🏆 Top Rated Plus 🏆 10+ years of experience 💡🧠 🛠️ crafting high-quality mobile solutions 💻📱 for iOS, Android, and Flutter. I don't just build apps, I architect 🎨 and lead the development of robust 💪🛡️, scalable software 📈 that solves real-world problems 🧩 and delivers exceptional user experiences 🌟. My Expertise: ✅ Flutter Architect: I've spearheaded successful migrations of native apps to Flutter, reducing development time and boosting performance. I'm proficient in building custom Flutter plugins, optimizing for web and mobile, and deeply understand Flutter's architecture and best practices. ✅ SDK & Plugin Development: I have a proven track record of creating multi-platform SDKs and plugins that streamline development and enhance functionality for other developers. My focus is on clean code, intuitive APIs, and seamless integration. ✅ Mobile-First Strategy: I'm passionate about creating mobile experiences that prioritize user engagement and satisfaction. I have a strong understanding of mobile design principles and UI/UX best practices. ✅ Technical Leadership: I've led teams, mentored developers, and fostered collaboration to deliver complex projects on time and within budget. I'm a certified Scrum Master with experience in Agile methodologies. My Skills: ✅ Languages: Swift, Objective-C, Java, Kotlin, Dart, C/C++, C# ✅ Platforms: Flutter, iOS, Android, Web ✅ Tools: Xcode, Android Studio, Git, CocoaPods, Firebase, RESTful APIs, GraphQL, MQTT, BLE, NFC ✅ Methodologies: Agile, Scrum, Mobile-First Design, Clean Architecture, SOLID Principles 🤝 Let's Collaborate! 🤝 I'm eager to apply my skills and experience to your next project. Whether you need a Flutter expert, a Mobile developer, an SDK developer, or a technical leader to guide your team, I'm ready to deliver results that exceed your expectations.

Java
Machine Learning
Python
Bluetooth
Firebase
MQTT
C#
C++
Kotlin
Swift
Objective-C
Dart
Flutter
Android
iOS
$25 hourly
Patrick R.
- 5.0/5
- (2 jobs)
Hi, I’m a professional web developer and IT specialist with over 3 years of experience in creating and deploying websites. I can design and build responsive, user-friendly, and secure websites that meet your business needs and goals. I’m also proficient in coding and open AI, the artificial intelligence research company that aims to create and promote friendly AI. I have worked on various projects involving natural language processing, computer vision, generative models, and reinforcement learning. I can help you leverage the power of open AI to create innovative and intelligent solutions for your problems. Additionally, I have a strong background in information technology and cyber security. I have knowledge and skills in network administration, system administration, data analysis, cloud computing, and ethical hacking. I can help you protect your data and systems from cyber threats and ensure compliance with security standards and best practices. I’m passionate about learning new technologies and staying updated with the latest trends and developments in the web and IT industry. I’m always eager to take on new challenges and deliver high-quality results within deadlines and budgets. I have excellent communication and collaboration skills and can work effectively with clients and teams across different time zones and cultures. If you are looking for a reliable, skilled, and creative web developer and IT specialist who can handle your projects with professionalism and excellence, then look no further. I’m the right person for the job. Contact me today and let’s discuss how I can help you achieve your goals. Thank you for your consideration.

Java
Website
SEO Setup & Configuration
Firewall
Firebase
SQL
C++
Azure OpenAI Service
Network Penetration Testing
Penetration Testing
Information Technology
DevOps
Linux
Python
Microsoft Azure
$30 hourly
Michael X.
- 5.0/5
- (17 jobs)
Welcome to My Profile! Are you seeking a seasoned Product Design & Engineering Consultant with a wealth of experience and a track record of success? Look no further! With a background involving many projects including a custom Avionics Development Board, Cube Satellite Board, as well as experience as both a Lead Electrical Engineer for the SJSU Cube3 club and a Research Assistant for the SJSU Research Foundation, I bring my expertise to the table. Who Am I? I am Michael Xiao, a dedicated professional with a passion for innovation and excellence in product design and engineering. With a solid foundation in electrical, software, and mechanical engineering, combined with extensive experience in research & development, prototyping, testing, and post-launch support, I offer a comprehensive suite of services to meet your needs. What Do I Offer? My areas of expertise include: Research and Development: Competitive Analysis Reverse Engineering Product Design: Concept Design Design for Manufacturing PCB Design Circuit Design Engineering: Electrical Mechanical Software Prototyping: Rapid Prototyping Testing: Electrical, Mechanical, and Software Testing Post Launch Support: Product Revisions Why Choose Me? Prove Track Record: With a rich history of working and contributing to successful product launches, I have the expertise to deliver results that exceed expectations. Advanced Tools: Leveraging industry-leading software such as Cadence OrCad, Altium Designer, easyEDA, and others, coupled with an electronic prototyping setup and a high-end 3D printer, I am equipped to handle projects of any scale or complexity. All-Inclusive Services: From concept to prototyping, testing, and post-launch support, I offer end-to-end solutions tailored to your unique requirements, all under a flat-rate hourly billing structure for transparent and predictable pricing. Let's Work Together! Whether you're a startup looking to bring your vision to life or a corporation seeking to enhance your product portfolio, I am here to help. Let's collaborate to turn your ideas into reality and achieve unparalleled success. Reach out today to discuss how we can partner together to drive innovation and bring your products to market with confidence!

Java
OrCAD
EasyEDA
Altium Designer
Cadence Platform
Embedded System
JavaScript
Python
C++
C
Schematic
Multilayer PCB
PCB Design
Computer Engineering
Electrical Engineering
$20 hourly
Barzy S.
- 5.0/5
- (9 jobs)
With over 10 years of diverse experience, primarily in software development and quality assurance, highly skilled professional specializing in Java, Salesforce, Selenium, API, Database Design, Automation, Manual and Regression Testing. I earned a Master's degree in Information Technology from Virginia Tech University, known for its top 3 ranking for best MIT programs in the United States. Throughout my career, I have honed my expertise in all aspects of software testing, including positive, negative, functional, regression, API, and database testing. With a strong background in SQL, JDBC, SOQL, and Oracle databases, I ensure data accuracy and integrity across diverse projects. My proficiency in Java enables me to design and implement robust test automation frameworks using tools like Selenium, Cucumber, and Jenkins. I have successfully automated RESTful API testing and managed code repositories using Git, Gitlab, and GitHub.

Java
YouTube Thumbnail
Canva
Adobe Premiere Pro
Communication Skills
Leadership Coaching
Cucumber
Selenium
Salesforce
Video Editing
QA Testing
Project Management
Software Development
$25 hourly
Firoz B.
- 4.9/5
- (21 jobs)
Hi, I’m Firoz Bari, a software engineer(Minnesota State University) & dedicated full-stack developer [AI/ML, Python, JavaScript, PHP, HTML, Laravel, WordPress Developers]. I am based out of Los Angeles with over 12 years of experience in building high-performance, scalable web applications, SAAS based Applications, Mobile App & AI/ML related projects. I specialize in developing robust front-end and back-end systems, designing seamless user experiences, and integrating AI-powered solutions to enhance modern applications. In California, I Also Own & Manage a small, Full service Software Company which combined of: 8 Full Stuck Developers [AI/ML, Python, JavaScript, PHP, HTML, Laravel, WordPress Developers] 2 Mobile App Developers, 2 UI/UX Product Designer & 2 Digital Marketing Expert) We specializing in AI-ML/LLM, web programming, development, and emerging technologies. Our extensive knowledge encompasses coding, design, markup languages, and various related fields. We stay up-to-date with the latest coding standards and browser compatibility requirements, continuously learning and adapting to new advancements. Our skills in coding and programming languages are given below: 1. Web Design (HTML, CSS, JAVASCRIPT) 2. AI, Machine Learning (ML), Large Language Model (LLM), NML 3. CMS (WordPress, Shopify, Webflow, WIX, Payload) 4. Web Development (PHP, Laravel, Node JS, NEXT JS, REACT JS, VUE JS) 5. Frontend Design (React, VUE, Bootstrap, Tailwind) 6. Backend Development(PHP, Laravel, API, Express, MongoDB, MSQL, PostGress, Socket, Payment Gateway etc) 7. Mobile Application Development (Android, IOS, React-Native, Flutter) 8. Graphics Design(logo, Banner, Leaflet, Brochure) 9. Video editing/content creation/motion graphics 10. UI/UX Design (Website, Mobile) 11. Digital Marketing, Lead generation(Facebook, Google, LinkedIn, Twitter) 12. SEO Expert ( ON page, OFF page, Site Ranking, Google ad-words) 13. Server administration, Hosting management, Deployment, Hosting transfer, Backup & Restoration, Code Upgradation, S3, Cloud deployment(Amazon, Azure, Google cloud) 🔹 Why Work With Me? ✔ Strong problem-solving and debugging skills ✔ Clear communication and collaboration ✔ Attention to detail with a focus on quality ✔ Proven ability to scale applications for performance and efficiency I thrive on collaborating with startups, entrepreneurs, and businesses to bring innovative ideas to life. Whether you need a full-scale development solution or an expert to enhance your platform, I’m here to help. 📩 Let’s connect and build something extraordinary together!

Java
Full-Stack Development
LLM Prompt Engineering
ML Automation
AI Bot
AI Chatbot
Python
PHP
Server Administration
WordPress
Product Development
Mobile App
Graphic Design
Ecommerce
Web Application
$89 hourly
Andres G.
- 4.7/5
- (6 jobs)
AREAS OF EXPERTISE  AI/ML Modeling and business proposals.  GSM/GPRS/EDGE Class 12  WCDMA for MUOS Satellite System  Power Control  Doppler/Fading scenarios  RF/Microwave Design on Receiver and Transmitter Blocks  OTA TIS/TRP Antenna Testing/Calibration  Custom RF Waveform Creation  Wi-Fi Analysis and Testing  802.11 wireless standards  Interference Mitigation  Custom Test/Calibration Platforms  JTRS Radio Evaluation of COTS platforms  Custom C/C++/Matlab/Perl test methods  TIA/EIA IS-95, CDMA 2000  RFIC CAD Tool Support  MIL-STD/3GPP/3GPP2/CISPR specifications  Android and Java Development in session  Improving Control Protocols/Call Processing/Upper Layers for QoS  WCDMA/HSUPA R6 Type 3 Standards  Smart Alignment Calibration  GPS RF EIS Receiver  SAR Criteria  FCC Part 15  BiCMOS/DMOS/CMOS Power Management Design  RF/Analog/Digital Lab Equipment  Antenna Design, Test & Optimization  ADS, HFSS, Eagle, Altium, Microwave Office, and CST design  CCNA/CCNP/CCIE Learning classes in progress  Cybersecurity Frameworks  CompTIA Security+ (In Progress)  CompTia Network+ (In Progress)  CISSP Certification (In Progress)  CISSP Certification (In Progress)

Java
Cybersecurity Management
Electrical Engineering
AT&T Cybersecurity
Embedded System
Python
Analog Electronics
Antenna Design
Circuit Design
Integrated Circuit
Software-Defined Networking
WiFi
RFID
Core Bluetooth
Arduino
$25 hourly
Aneeta L.
- 5.0/5
- (20 jobs)
I am a ISTQB certified software tester coming from a software development background with experience in testing Websites, Mobile Apps, and Desktop Software . I have 6 years of professional IT experience. ● I am a full-time freelancer with specialized skills in Software Testing and QA. My objective is to provide QUALITY work with precision and accuracy as much as possible. ● I have experience in Healthcare business domain. Also have experience in ETL testing, data validation, testing data extract etc. I have strong knowledge of the following technologies: ● Applications: Web, Desktop, and Mobile applications. ● Manual Testing: Smoke, Functional, Non-Functional, White/Black box, Sanity, Regression, UI, and UX ● Bug tracking tool: Atlassian JIRA. ● Database: IBM DB2, SQL server. ● Cross-Browser Testing Tools: Browserstack ● Operation Systems: All Windows version, basic knowledge in Linux and Macintosh ● Microsoft Office: Word, Excel, PowerPoint, Access, Outlook: 2007 -- up to the latest versions. ● Flexible Payment terms and a negotiable hourly rate for the right contracts

Java
ETL
QA Testing
Manual Testing
Core Java
IBM Db2
Selenium
Software Testing
Functional Testing
Software QA
$75 hourly
Daniel M.
- 5.0/5
- (2 jobs)
I am a Front End | Full-Stack Web Developer with a computer science degree and experience with both hardware and software technologies. I have a true passion for solving human problems. In the past, I achieved this through providing hardware solutions. In the present, I write elegant code to make Internet a better place for people. PROFESSIONAL EXPERIENCE Languages: Javascript, Ruby, Java, HTML5/CSS3 Frameworks/ Libraries: Rails, React-Redux, Material-UI, Node.js, Sass Database: PostgreSQL, MySQL, ActiveRecord Other: Git/Github, Heroku, webpack, AJAX, JSON, RESTful APIs, JSX

Java
React Native
Android
Sequelize
ExpressJS
TypeScript
PostgreSQL
Node.js
JavaScript
React
$65 hourly
Muhammad U.
- 4.8/5
- (61 jobs)
💎Your 𝐓𝐫𝐮𝐬𝐭𝐞𝐝 and 𝐑𝐞𝐥𝐢𝐚𝐛𝐥𝐞 Engineer to 𝐁𝐮𝐢𝐥𝐝 new things and 𝐅𝐢𝐱 broken things💎 𝐓𝐫𝐚𝐧𝐬𝐟𝐨𝐫𝐦 your 𝗪𝗘𝗕 | 𝗠𝗢𝗕𝗜𝗟𝗘 | 𝐃𝐄𝐒𝐊𝐓𝐎𝐏 | 𝐂𝐋𝐎𝐔𝐃 𝐚𝐧𝐝 𝐅𝐔𝐋𝐋 𝐒𝐓𝐀𝐂𝐊 𝐃𝐄𝐕𝐄𝐋𝐎𝐏𝐌𝐄𝐍𝐓 projects into extraordinary digital experiences with the help of my unwavering passion for crafting top-tier, scalable, and innovative solutions. I have expertise spanning both 𝗙𝗥𝗢𝗡𝗧-𝗘𝗡𝗗 𝗮𝗻𝗱 𝗕𝗔𝗖𝗞-𝗘𝗡𝗗 technologies, providing comprehensive services from 𝗖𝗢𝗡𝗖𝗘𝗣𝗧𝗨𝗔𝗟𝗜𝗭𝗔𝗧𝗜𝗢𝗡 𝗧𝗢 𝗗𝗘𝗣𝗟𝗢𝗬𝗠𝗘𝗡𝗧, consider me your dependable companion. Extensive years of expertise: -- 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 -- 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 -- 𝐏𝐇𝐏 (𝐋𝐚𝐫𝐚𝐯𝐞𝐥) -- 𝐑𝐞𝐚𝐜𝐭.𝐉𝐬 -- 𝐍𝐨𝐝𝐞.𝐉𝐬 -- 𝐎𝐛𝐣𝐞𝐜𝐭𝐢𝐯𝐞 𝐂 -- 𝐉𝐚𝐯𝐚 -- 𝐏𝐲𝐭𝐡𝐨𝐧 -- 𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬 Databases: -- 𝐌𝐨𝐧𝐠𝐨𝐃𝐁 -- 𝐌𝐲𝐬𝐪𝐥 -- 𝐒𝐐𝐋 𝐒𝐞𝐫𝐯𝐞𝐫 Core Skills: -- 𝐂𝐫𝐨𝐬𝐬-𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 (𝐀𝐧𝐝𝐫𝐨𝐢𝐝 | 𝐈𝐎𝐒 | 𝐇𝐲𝐛𝐫𝐢𝐝) -- 𝐖𝐞𝐛 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 (𝐑𝐞𝐚𝐜𝐭 𝐉𝐬) -- 𝐑𝐞𝐬𝐭𝐟𝐮𝐥 𝐀𝐏𝐈 (𝐍𝐨𝐝𝐞 𝐉𝐬 + 𝐄𝐱𝐩𝐫𝐞𝐬𝐬 𝐉𝐬 + 𝐌𝐨𝐧𝐠𝐨𝐃𝐁) Payment gateways: -- 𝐀𝐧𝐲 𝐏𝐚𝐲𝐦𝐞𝐧𝐭 𝐠𝐚𝐭𝐞𝐰𝐚𝐲 (𝐃𝐰𝐨𝐥𝐥𝐚, 𝐏𝐥𝐚𝐢𝐝, 𝐒𝐭𝐫𝐢𝐩𝐞, 𝐏𝐚𝐲𝐩𝐚𝐥 𝐞𝐭𝐜) Cloud backend services: -- 𝐀𝐖𝐒 (𝐕𝐏𝐒, 𝐔𝐛𝐮𝐧𝐭𝐮) Chat service: -- 𝐅𝐢𝐫𝐞𝐛𝐚𝐬𝐞 -- 𝐒𝐢𝐧𝐜𝐡 Repository systems: -- 𝐆𝐢𝐭𝐡𝐮𝐛 -- 𝐁𝐢𝐭𝐛𝐮𝐜𝐤𝐞𝐭 -- 𝐆𝐢𝐭𝐥𝐚𝐛 Management tools: -- 𝐆𝐢𝐭𝐡𝐮𝐛, 𝐁𝐢𝐭𝐛𝐮𝐜𝐤𝐞𝐭 -- 𝐉𝐢𝐫𝐚, 𝐭𝐫𝐞𝐥𝐥𝐨 -- 𝐀𝐬𝐚𝐧𝐚 You can give me the design in: -- 𝐒𝐤𝐞𝐭𝐜𝐡 -- 𝐀𝐝𝐨𝐛𝐞 𝐩𝐡𝐨𝐭𝐨𝐬𝐡𝐨𝐩 -- 𝐀𝐝𝐨𝐛𝐞 𝐱𝐝 -- 𝐙𝐚𝐩𝐥𝐢𝐧 --𝐅𝐢𝐠𝐦𝐚 🆈🅾🆄 🆃🅷🅸🅽🅺 - 🅸 🅱🆄🅸🅻🅳 !

Java
QA Testing
Flutter
Data Management
UX & UI
MERN Stack
DevOps
JavaScript
Agile Software Development
AI Development
PHP
Python
Ruby on Rails
Git
Amazon Web Services
$195 hourly
James D.
- 5.0/5
- (24 jobs)
Hi! I'm James, a Harvard Computer Science graduate, an ex-Googler, and CTO-level fullstack software engineer. I have 21 years of work experience, and can meet in-person if you’re in or near silicon valley. I believe that brilliance is good; reliability is better; and most important are integrity and compassion.. I help awesome people doing amazing things in the world; and I will deliver you delightful tech and tech leadership, on time, on budget, with full transparency and candor. I provide the following services: - Fractional CTO: I will work with you to clarify your visionary goals into an actionable technical roadmap; help you secure funding if necessary; and then run the technical operation start to finish. - Web and native app development: From napkin-sketch ideation to 7+ figure production, I will deliver intuitive, elegant digital experiences to your customers, from top-rated games and 3D virtual worlds to FDA compliant medical software, on the web and on devices. - Solving “unsolvable” tech problems. Examples of real projects I was engaged for: building a low power “hurricane proof” weather camera (Weather Channel); assisting with the development of the Semantic Reactor (a Google/Alphabet internal project); building a physical neural network entirely out of glass. - Technical project management: I will ensure your project runs on time and on budget, with incremental milestones and mitigated risks, using the best of Agile and PM tooling. I can manage teams large and small. - Productionalizing Research. Give me the research paper or the patent, I’ll make it real and scalable. - Consulting, with lawyers and attorneys, as a software engineering resource, for instance with respect to contracts and other legal matters (like Privacy Policies or GDPR/CCPA concerns). - Modernization of old technology: I will migrate and modernize your legacy application using the industry’s latest best practices. I have experience with performance tuning, scalability, devops, security hardening, penetration testing, and much more. - Teaching and coaching: I teach middle and high schoolers competitive coding. I enjoy tapping into every student’s life story and motivations. I also advise entrepreneurs and can act as a sounding board for personal and professional goals. - Solutions Architect: I provide comparative analysis of modern cloud technologies and explanations of how to use them for different scenarios. For example, I delivered a research paper to a private equity firm comparing Kafka, Kinesis, and other message queue technologies. The following are some of the technologies I have experience with: • Languages: Javascript/Typescript (ES6, ES7), C and C++, Java, Kotlin, Scala, Python, C#, Go / Golang, Rust • Analytics and Automation: make.com, Zapier, Twillio, Vercel, Airtable, Tableaux, Salesforce • Web: HTML5/CSS /SCSS/SASS/CSS-in-JS, React, Angular, WASM, 3js / three.js, Svelte, Astro, Vue.js, Qwik, Next.js, internationalization/i18n, localization l10n, accessibility/a11y • AI: PyTorch, TensorFlow, ChatGPT, GPT3 and GPT4, GAN (generative adversarial networks), Transformers, LSTM, RNN, belief networks / HMM • Mobile: ios (Swift and Objective-C), Android (Kotlin, Java) and DEX / Dalvik debugging, Google Play, App Store, React Native, expo • Geospatial: S3, H2, KD-tree, quadtree, ArcGIS, choropleths, NLP (including slack and discord chat bots) • MVP and Project Management: Figma, Trello, Jira, Agile, Scrum, Kanban • Testing and QA: JUnit, Jest, Mocha, Chai, Selenium, Puppeteer, Playwright, Cypress • Backend: NodeJS, Express, Django, flask, Tomcat, Spring, RabbitMQ • Infrastructure and DevOps: Docker, Kubernetes/k8s. GitHub Actions, CircleCI, Jenkins, Vercel, Netlify, Gatsby, Drone, Vagrant, Chef, Ansible, Terraform • Auth and InfoSec: auth0, oauth2, pentest, ISO 27001, GDPR, CCPA • Cloud tech: AWS, Azure, GCP, EC2, S3, Lambda, Kafka, Kinesis, AppSync, Spark, Storm, DataFlow, Hadoop • Databases: MySQL, Postgres, Firebase, Mongo, DynamoDB, Redis, NoSQL • Games / 3D: Unity, Unreal, OpenGL, webgl, photogrammetry, Meshlab, Blender, OpenCV • Embedded Tech: IoT, Raspberry Pi, Arduino, • Code Management: Github, Gitlab, Gerrit, Git, Svn • DevOps and Command Line: Bash, ZSH, Linux, PowerShell, Make, ImageMagick, FFMpeg, cron, GNU core tools

Java
PyTorch
NodeJS Framework
TensorFlow
Artificial Intelligence
React Native
Unity
Apache Kafka
Raspberry Pi
Scala
Python
JavaScript
Android
Bash Programming
Enterprise Architecture
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