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John B.
Guayaquil, Ecuador
๐ Elite Software developer
Need to scrape data from challenging websites? Iโm your go-to expert.
Highlights:
๐ 7+ years of experience building and architecting software from the ground up
๐8,000+ tracked hours on Upwork with consistent 5-star feedback
Production scrapers (Python/Go) I've built so far:
โ๏ธ Zillow
โ๏ธ Ticketmaster
โ๏ธ Airbnb
โ๏ธ Amazon
โ๏ธ American airlines
โ๏ธ Yelp
โ๏ธ Mercado Libre
โ๏ธ Multiple U.S. government sites
โ๏ธ a bunch of other websites
Core Technologies:
โฆ๏ธFrontend: HTML, CSS, vanilla JavaScript
โฆ๏ธBackend: Go, Python, Node.js
โฆ๏ธInfrastructure: AWS, GCP
โฆ๏ธWeb Scraping: Raw HTTP requests for efficiency and speed, adept at bypassing CAPTCHAs
Ready to get started?
Letโs connect! I offer a free consultation to discuss your project needs, troubleshoot errors, and guide you toward the right solutionโeven if you decide not to hire me.
- Golang
- Python
- Node.js
- Web Scraping
- Web Crawling
- Google Cloud Platform
- Data Mining
Asim K.
Lahore, Pakistan
With over 13 years immersed in software development, my enthusiasm drives me to enhance team success with my robust work ethic, meticulous attention to detail, and exceptional organizational prowess. Proficient in Java and well-versed in application development, I harbor a fervent desire for ongoing growth and excellence within the software realm.
My competencies encompass:
Leveraging the SpringBoot framework to craft microservices.
Skillful utilization of RabbitMQ for efficient message publishing and consumption.
Proficiency in orchestrating the migration of monolithic applications to Spring Boot microservices.
Expertise in constructing and deploying serverless microservices on AWS.
Familiarity with AWS components such as API Gateway, DynamoDB, Security Token Service, Amazon SQS, and SNS.
Extensive understanding of object-oriented programming (OOP) principles in Java.
Hands-on experience with both SQL and NoSQL databases, including MySQL, MongoDB, and Amazon Redis.
Proficiency in implementing continuous integration and continuous deployment (CI/CD) pipelines using Jenkins, Kubernetes, and Azure DevOps integration with TeamCity.
Utilization of GitHub and Git Bash for effective version control and collaboration.
Eager to harness my skills and knowledge, I am poised to contribute to team triumphs and deliver top-tier software solutions.
- SmartFoxServer
- Spring Boot
- Spring MVC
- Redis
- AWS Lambda
- Kubernetes
- CI/CD
- Java
- Azure DevOps
- Single Sign-On
- Kotlin
- SQL
- NoSQL Database
- Apache Kafka
- Apache Maven
- Gradle
- XMPP
- Adobe Flex
- Adobe AIR
- Eclipse IDE
Nasir U.
Lahore, Pakistan
Harness my 10+ years of expertise in Full Stack Development to get a stable, fault-tolerant and efficient piece of software. I provide 45 days free of cost support upon completion.
๐Full Stack Development ๐ MERN & MEAN Development โ๏ธ DevOps ๐ฑCross Platform Application Development ๐ฅณ End-End Software Development
With over 10+ years of professional experience being a Full Stack Developer, my name stands out for quality and reliability. My expertise lies predominately in MERN & MEAN stacks and I have completed numerous projects ranging from simple websites to complex Custom Web Applications.
๐ฅ Why me?
- Attention to detail- down to the last pixel.
- Seamless Collaboration. I believe a good communication ensures 95% success.
- Swift Execution. Yet, ensuring that there is no compromise on the expected quality.
- Dependable & Efficient.
What will you get?
โ
A good listener who fully understands your need and has a solid knack of mapping vague requirements into tangible user stories. Then, converting those user stories into working prototypes, followed with a fully functional Software Application.
โ
Flexible working hours as per your desired Time zone.
โ
End-End (Full Stack) Development.
โ
End-to-End Solution Architecture: From initial design to launch-ready products.
โ
B2B Marketplace Development.
โ
B2C Application development.
โ
FinTech.
โ
SaaS.
โ
Generative AI customization and integration.
โ
Serverless Web Applications: Utilizing AWS Amplify and Google Firebase.
โ
PWA (Progressive Web Application) development.
โ
Hybrid App Development: Using React Native, Angular, and Ionic.
โ
Responsive Design for All Devices (Mobile first design approach).
โ
DevOps Expertise: Azure, AWS, Heroku, GCP and Smartfox Multiplayer Game Server.
โ
Web & Data Scraping: Leveraging Node.js / Puppeteer, Python, and Selenium.
โ
Cloudflare Integration.
โ
IP Proxies and Captcha Implementation.
โ
Bot Development.
โ
Desktop App Development using PyQt and C# .net.
My play area ๐ป:
๐๐ฟ๐ผ๐ป๐-๐๐ป๐ฑ:
HTML5 | CSS3 | Bootstrap | Tailwind CSS | Angular.js | React.js | Vue.js | Ember.js | Three.js | GSAP | jQuery | Material UI | Ant Design | Three.js | Fabric.js
๐๐ฎ๐ฐ๐ธ-๐ฒ๐ป๐ฑ:
Node.js | Python | Nuxt.js | Next.js | Express.js | API Development| API Integration
๐๐ฎ๐๐ฎ๐ฏ๐ฎ๐๐ฒ:
PostgreSQL | MongoDB | MySQL | MSSQL | NoSQL | Amazon DynamoDB | Indexed DB.
๐๐ฃ๐ ๐ฑ๐ฒ๐๐ฒ๐น๐ผ๐ฝ๐บ๐ฒ๐ป๐:
Restful API | SOAP | GraphQL (API development & integration)
Let's start our collaboration together. I guarantee you that you'll get the best Software Development and consultation services. ๐ค๐ป
- Python
- Node.js
- React
- Angular
- JavaScript
- MongoDB
- Front-End Development
- MEAN Stack
- API
- Django
- MERN Stack
- Back-End Development
- DevOps
- Full-Stack Development
- Bot Development
Muhammad Umair K.
Islamabad, Pakistan
I'm having 5 years of experience in Unity 2D/3D and Object Oriented Programming languages i.e C# and Java. Developed Unity 2d, 3d games and application for different companies.
Very good knowledge of mobile apps optimisation, re-skinning, Shaders, ads , in-app purchasing and fire-base database.
Currently i'm working on a multiplayer game and learning AR/VR.
- Firebase Realtime Database
- Java
- C#
- Game
- Google Ads
- Review or Feedback Collection
- iOS
- Augmented Reality
- iOS Development
- Puzzle
- In-App Purchases
- Unity
- Game Design
- VR Application
Ryan K.
Nairobi, Kenya
๐๐ต๐ฎ๐ฝ๐๐ฒ๐ฟ ๐ญ: ๐ ๐น๐ถ๐๐๐น๐ฒ ๐๐ป๐๐ฟ๐ผ๐ฑ๐๐ฐ๐๐ถ๐ผ๐ป
Meet an exceptional Android Engineer with nearly ๐ฑ ๐๐ฒ๐ฎ๐ฟ๐ of experience in building robust Android applications using Kotlin and Java. With over ๐ญ๐ฌ๐ฌ๐ฌ hours on Upwork, I excel in writing exceptional code, solving complex problems, and thriving in collaborative team environments to help companies scale and deliver top-quality products.
๐๐ต๐ฎ๐ฝ๐๐ฒ๐ฟ ๐ฎ: ๐ง๐ฒ๐ฐ๐ต๐ป๐ถ๐ฐ๐ฎ๐น ๐๐
๐ฝ๐ฒ๐ฟ๐๐ถ๐๐ฒ
My technical toolkit of frameworks and libraries includes advanced knowledge of Android development using Kotlin and Java, categorized as follows:
User Interface
- App Theming
- Jetpack Compose
- XML
- Android Jetpack
- Material Components
- Custom View Components (Compose and XML)
- Lottie
- MainActivity, Fragments
- Recycler View
- Constraint Layout among others
Networking
- Retrofit
- OkHttp
- Glide
- Picasso
Storage and Data Management
- Room Database
- Shared Preferences
- SQLite
- Datastore
- Keystore
Dependency Injection
- Dagger
- Hilt
Inter and Intra Communication and Messaging
- Broadcast Receivers
- Content Providers
- Intents
Background and Periodic Tasks
- WorkManager
- AlarmManager
- JobScheduler
- Services
System Services and Managers
- NotificationManager
- AlarmManager
State Management
- Viewmodel
- LiveData
- Flows
- States
Asynchronous Programming
- Coroutines
- RxJava
- Threads and Callbacks
Logging and Analytics
- Firebase/Google Analytics Crashlytics
- Timber
- Mixpanel
Utility Components
- DialogFragment
- PreferenceManager
Testing: TDD
- JUnit
- Mockito
- Mockk
- Espresso
- Robolectric
- Compose UI Testing
- Truth
- Test Coverage
Version Management and Collaboration
- Slack
- Jira
- Bitbucket
- GitHub
- ClickUp
- Git
Other
- Navigation
- Google Play Services like Maps, Google Sign-In etc
Best Practices
Architectures
- Clean Architecture
- MVVM
- MVI
Data Handling
- Offline First Architecture
- Repository Pattern
- UseCase Pattern
UI/UX
- Material Design
- Responsive Design
Performance Optimisation
- Lazy Loading
- Caching
Code Quality
- Code Review
- Static Analysis
Others
- Security
- Test Driven Developement (TDD)
๐๐ต๐ฎ๐ฝ๐๐ฒ๐ฟ ๐ฏ: ๐ฃ๐ฟ๐ถ๐๐ฎ๐ฐ๐ ๐ฎ๐ป๐ฑ ๐ฆ๐ฒ๐ฐ๐๐ฟ๐ถ๐๐ ๐ถ๐ป ๐๐ป๐ฑ๐ฟ๐ผ๐ถ๐ฑ ๐๐ฝ๐ฝ๐น๐ถ๐ฐ๐ฎ๐๐ถ๐ผ๐ป๐
Often overlooked, I've had opportunities to work with some techniques
- ๐๐ป๐ฐ๐ฟ๐๐ฝ๐๐ถ๐ผ๐ป: Implemented ๐๐๐ฆ ๐ฒ๐ป๐ฐ๐ฟ๐๐ฝ๐๐ถ๐ผ๐ป for secure data storage and transmission.
- ๐๐๐๐ต๐ฒ๐ป๐๐ถ๐ฐ๐ฎ๐๐ถ๐ผ๐ป: Integrated ๐ฏ๐ถ๐ผ๐บ๐ฒ๐๐ฟ๐ถ๐ฐ ๐ฎ๐๐๐ต๐ฒ๐ป๐๐ถ๐ฐ๐ฎ๐๐ถ๐ผ๐ป (๐๐ถ๐ป๐ด๐ฒ๐ฟ๐ฝ๐ฟ๐ถ๐ป๐, ๐๐ฎ๐ฐ๐ฒ ๐๐) ๐ฎ๐ป๐ฑ ๐ข๐๐๐๐ต for secure user login.
- ๐ฆ๐ฒ๐ฐ๐๐ฟ๐ฒ ๐ฆ๐๐ผ๐ฟ๐ฎ๐ด๐ฒ: Have utilized Android ๐๐ฒ๐๐๐๐ผ๐ฟ๐ฒ for secure key management and encryption of sensitive data.
- ๐ก๐ฒ๐๐๐ผ๐ฟ๐ธ ๐ฆ๐ฒ๐ฐ๐๐ฟ๐ถ๐๐: Ensured secure communication with ๐๐ง๐ง๐ฃ๐ฆ, ๐ฆ๐ฆ๐ ๐ฝ๐ถ๐ป๐ป๐ถ๐ป๐ด.
- ๐๐ผ๐ฑ๐ฒ ๐ฆ๐ฒ๐ฐ๐๐ฟ๐ถ๐๐: Applied ๐ฃ๐ฟ๐ผ๐๐๐ฎ๐ฟ๐ฑ for code obfuscation.
- ๐จ๐๐ฒ๐ฟ ๐ฃ๐ฟ๐ถ๐๐ฎ๐ฐ๐: Ensured compliance with ๐๐๐ฃ๐ฅ ๐ฎ๐ป๐ฑ ๐ผ๐๐ต๐ฒ๐ฟ ๐ฝ๐ฟ๐ถ๐๐ฎ๐ฐ๐ ๐ฟ๐ฒ๐ด๐๐น๐ฎ๐๐ถ๐ผ๐ป๐.
๐๐ต๐ฎ๐ฝ๐๐ฒ๐ฟ ๐ฐ: ๐๐ป๐๐ฒ๐ฟ๐ฝ๐ฒ๐ฟ๐๐ผ๐ป๐ฎ๐น ๐ฆ๐ธ๐ถ๐น๐น๐
- ๐๐ณ๐ณ๐ฒ๐ฐ๐๐ถ๐๐ฒ ๐๐ผ๐บ๐บ๐๐ป๐ถ๐ฐ๐ฎ๐๐ถ๐ผ๐ป: This has been my ๐บ๐ผ๐๐ ๐ฎ๐ฝ๐ฝ๐ฟ๐ฒ๐ฐ๐ถ๐ฎ๐๐ฒ๐ฑ ๐ป๐ผ๐ป-๐๐ฒ๐ฐ๐ต๐ป๐ถ๐ฐ๐ฎ๐น ๐๐ธ๐ถ๐น๐น ๐ฏ๐ ๐ฎ๐น๐น ๐บ๐ ๐ฐ๐น๐ถ๐ฒ๐ป๐๐, especially considering the diverse settings and environments I have found myself in while working with people all over the world!
- ๐ง๐ฒ๐ฎ๐บ ๐๐ผ๐น๐น๐ฎ๐ฏ๐ผ๐ฟ๐ฎ๐๐ถ๐ผ๐ป: I work well in agile/scrum teams, actively participating in meetings and code reviews.
- ๐ ๐ผ๐๐ถ๐๐ฎ๐๐ถ๐ผ๐ป ๐ฎ๐ป๐ฑ ๐๐ฒ๐ฎ๐ฑ๐ฒ๐ฟ๐๐ต๐ถ๐ฝ: I lead and motivate teams effectively.
- ๐๐น๐ถ๐ฒ๐ป๐ ๐ ๐ฎ๐ป๐ฎ๐ด๐ฒ๐บ๐ฒ๐ป๐: I manage client relationships and understand their needs.
- ๐ฆ๐๐ฟ๐ฎ๐๐ฒ๐ด๐ถ๐ฐ Thinking: I align development with business goals.
- ๐ฃ๐ฟ๐ผ๐ฏ๐น๐ฒ๐บ-๐ฆ๐ผ๐น๐๐ถ๐ป๐ด: I love challenges and tackle them with innovative solutions.
- ๐๐ฑ๐ฎ๐ฝ๐๐ฎ๐ฏ๐ถ๐น๐ถ๐๐: I quickly learn new tools and technologies.
- ๐ฆ๐๐ฟ๐ฒ๐๐ ๐ ๐ฎ๐ป๐ฎ๐ด๐ฒ๐บ๐ฒ๐ป๐: I maintain productivity under pressure.
- ๐๐ป๐ถ๐๐ถ๐ฎ๐๐ถ๐๐ฒ: Iโm proactive in improving processes and learning new skills.
- ๐ฆ๐๐ฝ๐ฝ๐ผ๐ฟ๐: I enjoy providing client and consumer support.
- ๐๐ฟ๐ฒ๐ฎ๐๐ถ๐๐ถ๐๐: I develop innovative solutions and enhance user experience.
๐๐ต๐ฎ๐ฝ๐๐ฒ๐ฟ 5 - ๐๐๐ฃ๐๐ก๐: ๐๐๐๐ ๐๐ฒ๐ณ๐ผ๐ฟ๐ฒ ๐ฌ๐ผ๐ ๐๐ผ
Despite my extensive experience, there is a lot that I donโt know yet. I maintain a humble attitude towards learning and eagerly embrace new challenges beyond my current skill set. I look forward to the opportunity of working together to create exceptional Android experiences. Let's innovate and excel together!
- Java
- Kotlin
- Android App Development
- Android
- Mobile App Development
- Android App
- JetPack
- Android SDK
- Google Play
- Native App Development
- SQLite
- API Integration
- UX & UI
- Git
- Firebase
Euna I.
Tallinn, Estonia
With experience of several years in mobile game development my main expertise are- Unity, writing clean and flexible code with C#, delivering highly performance mobile games, attractive UX/UI and level designing. I have up-to-date knowledge about the latest Unity technologies and a quick ability to adapt with new technologies. I understand the uniqueness of each project and approach them with careful planning.
Basically I love solving problems and meet new challenges regarding game development. As a gamer, developer and tester I have acquired knowledge about successful game designs in terms of both entertainment and financial aspects.
I have excellent communication skill with fluency in English and attention to detail. I have experience in working remotely with both large and small teams. With my managing skills, I have the ability to execute any project with 100% client satisfaction and meet deadlines.
I strictly maintain the habit of writing readable, clean code with proper documentation for future maintenance and easy integration. I can also provide software documentation and technical specification.
I have worked in both 2D and 3D games and capable of designing levels that ensures higher retention.
Relevant skills-
- Unity 2D & 3D
- Scriptable Object
- Unity Event
- Game design patterns
- C#, Javascript, C/C++
- Re-skinning game
- Debugging performance problems with Unity
- SDK integration
- Cross Platform Games including PC, iOS and Android
- Analyzing Data using third party SDK(Playfab, Firebase)
- Ad Network Integration
- In App Purchase
- PlayStore and Game center
- Illustrator, Photoshop, Blender, Audition
Thank You
Euna
- Java
- Unity
- JavaScript
- C#
- Game Customization
- SQL
- Game Testing
- Blender
- RESTful API
- Project Management
- Spring MVC
- Game Design
- Unit Testing
- 3D Modeling
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