R̶U̶S̶S̶I̶A̶ → THAILAND🌴 I'm .NET Developer with more than 14 years of commercial development experience. I can work with everything where .NET CLR can be run. According to the web I'm full-stack developer with emphasis on the server-side. It's been pretty long way from junior developer to self-organized senior developer/team lead/architect. My portfolio contains 50+ projects: WinForms, WPF and ASP.NET (from WebForms to Core). I started projects from scratch and got the existing code base. Welcome to boring list of buzzwords I have experience with: ✓ OOP and System Design; ✓ Theoretical knowledge and practical experience with design patterns; ✓ Asynchronous and multithreading development (TPL); ✓ Rest API design, architecture and implementation; ✓ 3rd party API integration using existing packages or from scratch; ✓ Microservices and monolith architectures; ✓ GIT (Azure DevOps, github, bitbucket), SVN and TFS version control systems; ✓ .NET | .NET Core | .NET Framework C#; ✓ TypeScript; ✓ JavaScript (jQuery, linq.js, lodash, underscore, moment, HighCharts); ✓ CSS/LESS/SASS, Bootstrap, Bootswatch; ✓ XML, XSLT, Serialization/Deserialization (XML, Binary, JSON); ✓ ASP.NET Core; ✓ ASP.NET MVC / Web API; ✓ AngularJS 1.x, Angular 6; ✓ React (basic); ✓ Kendo UI (JS and ASP.NET MVC wrapper) and DevExtreme; ✓ Bootstrap, Bootswatch; ✓ SMS integration (Twilio, Plivo, SMSru); ✓ PayPal (Express Checkout (REST API) with Basic Client and Advanced Server integrations); ✓ Square integration; ✓ Stripe integration; ✓ Email integration (SendGrid, MailGun, Gmail, custom SMTP); ✓ SignalR; ✓ Microsoft Azure (Azure SQL, Azure AD, MobileApp, WebApp, ApiApp, Azure Storage, EventHub, Stream Analytics, Application Insights and others); ✓ AWS (EC2, Load balancer, ECS, S3, DynamoDB, Redis); ✓ MS Bot Framework and MS Teams integration; ✓ Telegram Bot .NET Framework; ✓ WCF and WebServices; ✓ Entity Framework (Full and Core) (DB-first, code-first and model-first approaches). Deep knowledge of T4 template modifications, DbContext improvement, performance improvement, SQL profiling and others; Also Entity Framework Core; ✓ T4 templates (reach code-generation experience); ✓ Roslyn Source Generators ✓ LINQ and Dynamic LINQ Expressions; ✓ Database architect and optimization including Microsoft SQL/T-SQL; ✓ NoSQL (Azure Table Storage, CosmosDB, DynamoDB, MongoDB); ✓ Caching (Redis); ✓ Messages (RabbitMQ, Kafka); ✓ Azure DevOps CI/CD configuration; ✓ GitHub CI/CD configuration; ✓ Docker; ✓ .NET Desktop (WPF: MVVM, MVP, WinForms); ✓ Windows 8.1 and 10 universal application development (UWP); ✓ Prism, MVVM Light; ✓ WebView2 + local Kestrel for JS-based UI; ✓ Telerik and DevExpress frameworks for WinForms and WPF; I'm not a "rock star" or "ninja", just a person who knows how to work hard and can be part of the team.

I am a software engineer with over 7 years of experience currently focused on web and desktop application development using functional languages (Elm, Haskell, Ocaml, Scala, Go). Technical Experience: I have worked as a development lead on a variety of projects over the course of my career, spanning a number of platforms and contexts, from low level servers in C, to full stack web applications, to proxy servers and development libraries/tools. Below is a summary of the core skill sets I have developed. - Projects overview : -- Published NPM react-admin data provider for Hasura Grapqhl databases -- SOAP to REST proxy server for a bank's Issuer credit card management system, for use by internal developers. -- An insurance policy renewals payment kiosk application for a bank -- An Asterisk IP PBX billing server -- An adaptive HTTP media server/streaming platform over HLS - Back End Development Skills : -- Golang -- Java ( Spring Boot, Play Framework, Hibernate, Tomcat) -- C -- Haskell -- Scala -- Ocaml -- Clojure -- Elixir - Front End Development -- Elm -- React ( Redux ) -- Angular -- Javascript ( ES6, Nodejs, Typescript ) - Database administration ( Postgresql, Microsoft SQL Server, Mysql, MongoDB ) - Linux Administration - Android Development ( Native, Ionic ) Years of experience as a project lead, responsible for determining client needs and hiring development talent for my own teams, has equipped me with the technical skills and managerial faculties to provide excellent service and a pleasant working relationship to my clients. Competence and Communication are the cornerstones of a productive professional working arrangement. From requirements elicitation to designing and implementing software solutions, over the course of my career I have developed the skills to accurately ascertain client needs and produce high quality solutions. Let's work together to bring your ideas to life.

I could help you with most types of website development, web application development, API Development and Asterisk VoIP Server. And I promise to deliver Best Result, Clean Code and Quality Code with Good Attitude. I have experiences on PHP, Laravel, Codeigniter, Python, MySQL, PostgreSQL, HTML5 & CSS3, Twitter Bootstrap, JQuery, Git, Paypal, Stripe, Twilio, Amazon Web Service (AWS), CURL, XPath, XQuery, C/C++. - I am a very responsible professional (does not disappear with a half-done job). - I am using Git in my workflow so if I gotta working in team -- it's really easy and comfortable for me and other developers. - I can spend at least 30 hours/week on your project. - For long-term relationships, so as not to waste time every time you search for a new employee for every new project . You can hire me and You will be happy!.

I am a professional IT specialist, self-paced in IT, hard-working and a goal-oriented person. As a DevOps engineer with 5 years of experience of Devops and a total of 7 years plus in IT, possess a strong understanding of software development processes, automation, and infrastructure management. Experience in implementing continuous integration and continuous delivery (CI/CD) pipelines and are proficient in DevOps tools such as Git, Jenkins, Docker, Kubernetes, and Ansible. I have skilled in managing cloud infrastructure and have experience working with: Centos | Ubuntu | RHEL AWS | Azure | GCP CI/CD Pipelines and product delivery using Agile way Bit Bucket | Git VMware Workstation | ESXi Servers 6.0 - 8.0 Infrastructure Networking: Virtual on Cloud Providers |Fortinet | PFsense | Mikrotik

Experienced DBA and have expertise in 1. MySQL Administration 2. SQL Server Administration 3. MongoDB Administration 4. Postgres Administration 5. Oracle Administration My focus areas are 1. Designing 2. Deployment, 3. optimization of database system performance (Engine Tuning, Queries Indexing, read/write splitting ) 5. Scalability using HA/Replication tool & Techniques (MySQL master-master & master-slave, Group Replication, InnoDB & Galera cluster solutions, SQL Server Always on Availability Group & Always-on Clustering, transactional replication, log shipping & Oracle Data Guard) 5. Security of the Database System 6. Data Modelling (ERD, Schema Designing, Relationship Defining between Entities) 7. Logic creation using SQL queries, T-SQL & PL-SQL 8. Migration & Upgrade Support (on-premise to Cloud, Cloud to Cloud, Database version upgrade) 9. Monitoring (Nagios, Percona Managment & Monitoring (PMM2) and prometheus & grafana). 10. Troubleshooting I have optimized and provided HA/Replication of backend databases for products like CRM, wooCommerce, WordPress, retails, bank, bioinformatics research, and so on. I have experience with monitoring tools. I have experience managing databases both on-premise and cloud, such as AWS, Digital Ocean. We also provide monthly support to the customers freeing you from managing your Database Infrastructure. I have intermediate experience in DevOps tools such as Docker & Kubernetes, CI/CD such as Jenkin, Ansible, Git, Gerrit. I also have experience in AWS VPC, EC2, ELB, Route53, RDS, Subnetting.

Featured as success story on Upwork: LinkedIn article at http://goo.gl/jKr2mJ !!! Called to be part of the “Upwork PRO” special category: https://pro.upwork.com/hire-mobile-developers.html I'm especially succesfull managing integrated mobile projects (iOS/Android/backend), where I can outline the design and the architecture of the system, act as senior iOS developer and manage and coordinate the backend/frontend developers to create bug-free, performant, shiny and reliable apps. Also getting great feedbacks while assisting startups and entrepreneurs in turning ideas into apps, suggesting easy and stable solutions based on my large experience and leading the preliminary process prior to the actual development. I've been working on iOS/Android projects for the last seven years, using almost any related technology: Maps, Web Services, Parse,com, Push Notifications, Core Data/SQLite databases, regular expressions, Augmented Reality, barcodes handling, etc. Also, during the last five years I've started managing large mobile projects, acting as analyst/architect and leading teams of developers. My previous experience: From 2000 to 2009, I have developed a wide range of ISDN/SS7 telephony based applications on Intel/Dialogic hardware, using Asterisk, MS SQL Server, Oracle, C/C++, Delphi, Java and .NET, including applications for major telephony providers in Italy. I speak fluent English, Spanish and Italian.

⭐️ Certified developer with 15 Upwork tests ⭐️ 1st position among 12,000 test takers(Please see my test result down bellow) in 3 tests and within top 10% in the rest Hello, Having more than 7 years of experience in iOS/Android Application development, I successfully engineered not less than 80 apps. Boosted several businesses through developing premium quality applications accompanied by high end client support and communication skills. My past jobs can give you a grand tour of my experience in building complex but impressive quality applications. ► Experienced of working with: ✪ Mobile Application(iOS/Android) ✅Ride Sharing App ✅Restaurant App ✅E-commerce/Shopping App ✅Business Apps ✅Food Delivery App ✅Airbnb Like/ Travel App ✅Booking Management App ✅Hotel Management App ✅Utility App ✅Educational App ✅Lifestyle App ✅iOS 10 iMessage App ✅Messaging/Chatting app ✅Social Networking app ✅Video streaming app ✅Video processing app ✅Music app ✅Health/Fitness app ✅Video/Photo sharing app ✪ Web Application ✅ Complete Enterprise Web App Solution ✅ Business Automation Web App ✅ Static/Dynamic Web Application ✅ E-commerce Web Apps ✅ Portal Web Apps ✅ Animated Web Apps ✅ Content Management System ✅ Customer Relationship Management System ✅ Membership Sites ✅ Microsites ✅ Transactional Web Solutions ✅ Online Banking Systems ✅ E-government/B2B Solutions ✅ Multi-platform Delivery Web Application ✅ Collaborative Web Solution ✅ Interactive Web Application ► Programming Language skills: - Swift - Objective-c - Java - C - C++ - PHP - JavaScript - C# - Python ► Proficiency in technologies: ✪ iOS ♦ Custom API Development ♦ iOS Hybrid using React JS ♦ Phonegap/Cordova ♦ Apple XCode 7/8/9/10 ♦ SOAP ♦ XML ♦ JSON ♦ MVC ♦ Singleton ♦ Git ♦ SDK Development ♦ ApplePay ✪ Android ♦ Google Maps API ♦ Google Play services ♦ OK HTTP, Retrofit, Volley (For networking) ♦ Android Architectural Components ♦ Dagger (Dependency Injection) ♦ IDE (Android Studio) ♦ Firebase (Database, Auth, Messaging, Cashlytics ) ♦ Git (Version Control) ♦ Fabric (For Analytics. Crashlytics) ✪ Web-development ♦ PHP(Laravel, Codeigniter, CakePHP) with MySQL, ♦ Node.js with MongoDB, ♦ Ruby on Rails with MongoDB ♦ Python Django with MongoDB ♦ Object Oriented Programming ♦ RESTful API Development & Integration ♦ Payment Gateways(Paypal, Payoneer, Stripe, Braintree, Skril,Paytab,Hyperpay,Payfortl) ♦ Twilio SMS API ♦ Social Network SDK integration: Facebook, Twitter, Instagram, Linkedin, Pinterest ♦ GeoLocation : Google Map API, GPS Tracking, Mapbox, MapKit ♦ Google Analytics ♦ Network Programming : Bluetooth, Wifi, RTMP, RTCP, RTP/RTSP, HLS, etc ♦ Amazon Web Service ♦ Natural Language Processing enabled Chatbot Development ♦ Google Dialogflow ♦ Backend API integration: REST API - Video Streaming, VoIP, WebRTC, OCR : FFMpeg, VLC, OpenCV, Scanbot, SIP, Asterisk, etc ♦ XML Web Services ♦ Firebase ♦ Push notification (APNS/FCM) ♦ Jenkins CI ♦ In-App purchases ♦ OneSignal ♦ Branch.io ♦ OAuth 2 ► Some stats about me: ✅ 5-Star Feedback ✅ 1st Place in 3 Upwork Developer Test ✅ Over 78 apps in last 7 years ✅ Among top developers in Upwork. ✅ Helped a startup to receive $200,000 as investment from silicon valley VC. ✅ Training from apple, 20 course completed in App development, User experience, QC.

I am a fullstack developer, am a leading Mobile and Web App developer. I deliver innovative and futuristic software solutions that add value to your business. I give client-driven, change-situated, and easy-to-use site solutions. I make sites that help you upscale your business through research-based plans. Website composition and improvement are services we've picked up skills through long stretches of understanding. I guarantee the solutions we manufacture be feature-rich and carefully changing. Long stretches of research have picked up our experiences into what functions admirably and what doesn't. I accumulate what we have and give you the web solution the clients will revere. I am resolved to satisfy the requirements of our clients as well as could be expected. I keep our customer's advantages over our own and guarantee that nothing goes south in the entire procedure starting from the introductory conversation to the end solution, making the web design and web development to be much more precise. I Offer ============== Expertise with Emerging technologies ----------- AI / ML AR / VR Unity Blockchain Mobile App Development --------- - iOS (iPhone, iPad) - Swift - Objective -C - Android (Java and Kotlin) - React Native - Cross-Platform - Flutter Web App Development --------- - Enterprise app development - Web-based software app development - Rich Internet application development - Social networking app development - E-Learning app development - E-commerce Open Source Development --------- NodeJS, AngularJS, ReactJS, PHP, Laravel, Code Igniter, WordPress, Magento, Java, Mean Stack, .Net, Python, Machine learning, AI, AR/VR. Website and Online Branding --------- - SEO & SEM web promotion services - Social Media Marketing - ASO - QA & Testing Design Services & Theme Customisation --------- - Photoshop & Illustrator for 2D/3D/UI/UX design - HTML5, CSS3, JavaScript, Angular, React, React Native, Bootstrap for Web design - Theme Customisation APIs & Integrated Features --------- - Payment APIs - Google Maps - Google Places - Google Analytics - YouTube - Social Media - Push Notifications Domains --------- - Gaming - e-Commerce & Retail - Social & Dating - Enterprise Apps - Location-based services - Fashion and Lifestyle - Real Estate - Tourism & Travel - Marketplace - On-Demand Apps Other Expertise --------- - Stripe SDK for Apple Pay - AWS service for the image, video uploading and downloading - JSON parsing - XML parsing - Asterisk, FreePBX, SIP Source Code Management Systems I prefer: --------- - Gitlab - GitHub - Bitbucket Accomplishments --------- - 10+ mobile apps and 50+ projects to 45+ satisfied clients across the globe - 100% job success rate - Top Rated on Work - Good client Feedback - High Client Recommendations Tools --------- - We use Project Management System BaseCamp to effectively manage your - Bug Tracking with JIRA - Immediate response to your queries on PMS, IMs, or Phone calls. - Can work in different time zones Our Business Model --------- - Time and Material - Fixed Price - Hire dedicated developers Why choose Me? --------- - I have a robust tech team that can deliver complete solutions, at a quick turnaround time and the most affordable rates. Our App solutions cover not just design and development but also include free publishing in in-app stores.- - With close to a decade of industry experience, well-defined quality processes, and quick adaptability to changing needs, we constantly strive to deliver Customer-centric solutions, of world-class quality. - Get in touch with me today, to learn more about how I can help you become bigger and better!

* 26 years experience in IT (overlapping): - software development - 17 years (Python - 13 years) - management - 8 years - QA - 8 years - system administration - 5 years * 6000+ hours worked at Upwork * Top Rated Plus and Expert-Vetted with 100% Job Success Score * Outstanding client feedback * Fluent English Specialization: * Python backend development with Django, FastAPI, Flask, nameko and other frameworks * API implementation: REST API (with Django, Flask or Falcon), GraphQL API, Non-HTTP API (WAMP over WebSockets, ZeroRPC over ZeroMQ, Kafka consumer/producer interface), RPC API (HTTP/JSON-RPC, HTTP/SOAP) * Database engineering: PostgreSQL, MySQL, Redis * Performance optimization: databases, algorithms, Python C extensions, Cython, PyPy, Numba

I experienced python developer with more than 6+ years of practice with python and 6+ years practice with the web at all. I have built a lot of web/mobile application back ends of different complexity. - I often use these libraries during development: Python, Django, Django Rest Framework, Flask, Tornado, Twisted. - ElasticSearch, MongoDB, Redis, Celery, RabbitMQ; - 3 Mobile, Desktop and Web user interfaces, 4 HTTP REST APIs, 2 Frameworks - Django REST Framework and Crossbar/Autobahn/Twisted, horizontally scalable) - Established the software development process from scratch based on agile practices. - Hired back-end development team. - Performed team leader role of a distributed team (Moscow, Saint-Petersburg, Keiv) of Python back-end developers. - Developed and refactored back-end part of the system. - Participated in the project management to fill the gaps of project manager's skills on managing an agile startup project. - Python 2.7, Django, Django REST Framework, Celery, JavaScript - Linux, PostgreSQL, SQL, Redis, RabbitMQ, uWSGI, nginx, Asterisk - HTTP, WAMP over WebSockets, SIP, JSON, HTML, CSS - git, PyCharm, Jira, Jenkins, Ansible, unittests, Behave Also, I often use Docker and Vagrant as my development tools and I have experience work with AWS, Facebook API, Twitter API, Outlook API. I well familiar with Ansible. On Upwork I hope to find diversified tasks and projects to improve and expand my skills. I am easy to communicate with and can work either independently or inside a team when the need arises. I am also flexible to working as per location's time zone. Let's get started with you project and make it worth a million dollar.