The best freelancers
91
Website development · Technical documentation
Lvov, Ukraine
Website✔️ Web design ✔️ Mobile application ✔️
3030
17 0
Greetings!
I am a Product owner, I organize the development of projects and support all stages of the implementation of the final product.
Together with our team and partners, we specialize in providing unique solutions and comprehensive Internet services to develop your online business.
My goal is to use an individual approach to bring your project to fruition, which will subsequently contribute to the achievement of long-term relationships between us.
WEB DEVELOPMENT Landing Page Corporate website Online store Startup Internet portal Internet platform
SERVICES Create a prototype Design a logo UX/UI Interface design Site design Site redesign Front-end Back-end QA & QC site testing Create a brand book and corporate identity
ADDITIONDLLY RudHost - Хостинг, VPS / VDS servers around the world, Discounted SSL certificates and domains Virtual servers - HMARA Website technical support Copywriting
What do you need to know before starting cooperation?
Our solutions are ahead of your competitors and set new trends! Every self-respecting entrepreneur should strive to go online - we create effective tools and open the door to online business for you. Our priorities are the quality and speed of decision-making.
Skills Technologies
JAVA, .NET, PHP, JS, Node.Js
WEB PHP framework: Laravel Laravel: Broadcasting, Echo, Scout, Passport, Telescope, Mix, Voyager/Backpack etc. PHP CMS: Drupal JS: Vue.Js, React Basic techniques: jQuery, Ajax, Axios, Vuex, Nuxt, CLI, Bootstrap, Tailwind, Materialize, CSS3, HTML5, XHTML, Webpack, Babel, Gulp, Bower etc.
MOBILE React native (Facebook), Redux Android (java), Android MVP, Material design, Android Studio Flutter
DATABASE
MySQL, PostgreSQL, MongoDB, Firebase, SQLite, GraphQL, DAO, AR
PACKAGE MANAGER
NPM, Yarn, Composer
TESTING
NUnit, JUnit, Unit, Feature etc.
VERSION CONTROL SYSTEM
Git, SVN, TFS
TASK MANAGEMENT
Trello, Jira, Bitrix24
API DOCUMENTATION
Swagger, Postman
ENVIRONMENTS
Docker, Vagrant, Open server, Xampp
WEB SOCKETS
Pusher, Socket IO, Redis
IN MEMORY CACHE
Redis, Memcached
OTHER Elastic Search REST API, SOAP, XML, Json, OAuth 2.0, JWT Auth, Eslint AWS (CloudFront, S3, EC2, SQS, SNS, etc) Linux (Ubuntu), FreeBSD, CentOS, Debian, Nginx, PHP-fpm, Apache Cloudflare
#JAVA #NET #PHP #JS #Laravel #Symfony #Broadcasting #Echo #Scout #Passport #Telescope #Mix #Voyager #Backpack #Drupal #Vue #React #jQuery #Ajax #Axios #Vuex #Bootstrap #Tailwind #Materialize #CSS3 #HTML5 #XHTML #Webpack #Babel #Gulp #Bower #ReactNative #Redux #Android #AndroidMVP #MaterialDesign #AndroidStudio #MySQL #PostgreSQL #MongoDB #Firebase #SQLite #GraphQL #DAO #AR #NPM #Yarn #Composer #NUnit #JUnit #Unit #Feature #Git #SVN #TFS #Trello #Jira #Swagger #Postman #Docker #Vagrant #OpenServer #Xampp #Pusher #SocketIO #Redis #Memcached #ElasticSearch #RESTAPI #SOAP #XML #Json #OAuth #JWTAuth #Eslint #AWS #CloudFront #S3 #EC2 #SQS #SNS #Linux #FreeBSD #CentOS #Debian #Nginx #PHP-fpm #Apache #Cloudflare
2903
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Ivan Hrytskiv
Team Lead / Senior Software Engineer
Summary
I am an Team Lead / Principal | Senior Software Engineer, Developer with over 18 years of experience in software development and leading IT projects activities.
I have worked on many different projects where I have had to solve a different issues including
architecture design, DB schemas, optimization, some DevOps tasks, requirements analysis and
technical research, leading full cycle development from scratch to product launch.
Creative, polite, punctual, responsible, study easy, can work independently and in team. Great desire
to work.
I have my own patents in the fields of medicine, religion, science.
Technical skills
Programming Languages ,Technologies & Tools:
DBMS: MySQL, PostgreSQL, Oracle, Progres4GL
NoSQL: Redis, MongoDB, Cassandra
Search Engine: ElasticSearch
Technologies: Docker / Docker Compose, Kubernetes, Postman, Prometheus
Web-servers: nginx, apache
Cloud: Google, AWS
Frameworks / Libraries: Django framework, REST framework, Flask framework, Scrapy, Selenium,
SeleniumBase, SeleniumWire, puppeteer, JMeter, jQuery, Bootstrap, Jinja2, Allure
Tools: Atlassian JIRA; Confluence
The Python Object Relational Mapper: SQLAlchemy
CI/CD tool: Jenkins
Experience working with Linux and cloud platforms
Experience in Agile-based (Scrum) methodologies
Repository / CI :GitLab, GitHub, Bitbucket
Task Queue: Celery, Circus
Message Broker: RabbitMQ, Kafka
Python AsyncIO, Aiohttp, Aiofiles
Create API documentation – RAML, Swagger
Operating Systems
Linux
Windows
Other
Scrum
Patent
▪Patent Title: “BorntoFish”. Patent/Application Number: m202016093
▪Patent Title: Computer program “The Secret of Happiness”. Patent/Application Number: 39354.
Author and developer of project "First Ukrainian anti-crisis Christian - psychological medical - health
program" Secret of Happiness "(Part One)
▪Patent Title: Computer program “Hello Bible”. Patent/Application Number: 86345. Author and
developer of project “Hello Bible”.
▪Certification Authority Ministry of Health of Ukraine. License Number АГ № 599796 January 2012.
▪Ukrainian Catholic University (Bioethics). License Number 000034 June 2012
Interests
Books, philosophy, psychology, east combats, medicinal, football, snooker, gimm, fishing.
Experience
Project name:NDA
Description:Development of interfaces of connection of endpoints of our product
and products of partners. Develop integration of this product into
partner’s products.
Tools & technologies:
DBMS: MySQL, PostgreSQL
NoSQL: Redis, MongoDB, Cassandra
Search Engine: ElasticSearch
Technologies: Docker / Docker Compose, Kubernetes , Postman,
Prometheus
Web-servers: nginx, apache
Cloud: Google, AWS(AWS Serverless, AWS Lambda, AWS Step
Functions,
AWS Athena, AWS DynamoDB, AWS SNS and SQS, AWS S3, AWS
ElasticSearch)
Frameworks / Libraries: Django framework, REST framework, Flask
framework, jQuery, Bootstrap, Jinja2
The Python Object Relational Mapper: SQLAlchemy
CI/CD tool: Jenkins
Experience working with Linux and cloud platformsExperience in Agile-based (Scrum) methodologies
Repository / CI :GitLab, GitHub, Bitbucket
framework : Django framework, REST framework, Flask framework,
Scrapy
Task Queue: Celery, Circus
Message Broker: RabbitMQ, Kafka
Python AsyncIO, Aiohttp, Aiofiles
Create API documentation – RAML
Project responsibilities:
Software Engineer
- Coach junior team members
-Prepare technical documentation
-Build efficient back-end features in Python
-Use server-side logic
-Identify and suggest various opportunities to improve efficiency
and functionality
-Write and implement software solutions that integrate different
systems
-Write reusable and testable code
-Manage testing and bug fixes
-Help design and implement functional requirements
Duration:3 years
Customer:EU
Project name:NDA
Description:Outsource ecommerce project based on iPad application. The idea was
to develop Python scripts for web scraping and web page crawling
using Scrapy framework, Portswigger, Puppeteer, Nord VPN,
BeautifulSoup, PyQuery, LXML, request, Selenium, aiohttp modules.
Tools & technologies:
Python, JavaScript, Django Rest, jQuery, CSS, HTML, PyCharm,
DataGrip, Jankins, Slack, Cabot, Pivotaltracker, Kibana, Eclipse, Git,
Sublime Text, Notepad ++, HTML, CSS, XML, MySQL Workbench, PuTTY,
WinSCP, Cygwin, Experience with the full LAMP stack
Project responsibilities:
Software Engineer
-Build efficient back-end features in Python
-Manage testing and bug fixes
-Help design and implement functional requirements
Duration:2 years
Customer:EU
Project name:NDA
Description:Development of live dialogs of communication.Web UI controllable
Microservices Infrastructure with services deployment and operating
platform. Implementation of this development on the customer side.
Tools & technologies:
Java, Python, Django framework, REST framework, Cloud: Google
DBMS: MySQL, PostgreSQL, Search Engine: ElasticSearch
Project responsibilities:
Back-end Engineer
-Build back-end features in Python, Java
-Manage testing and bug fixes
-Introduction of new technologies
-Development of speech recognition technologies
Duration:1 year
Customer:EU
Project name:NDA
Description:Database design, development of environment for writing algorithms
for banking and payment systems.Integration of payment systems into
third-party protocols.
Development of Startup Project
Tools & technologies:Python, JavaScript, NoSQL
Project responsibilities:Software Engineer
-Development payment and banking systems
-Build back-end features in Python
-Manage testing and bug fixes
Duration:1 year
Customer:USA
Project name:Own projects
Description:Projects in medical, religious, scientific field.All of these projects
were funded through international grants.
Tools & technologies:Python, Very wide and diverse technical stack for all projects
Project responsibilities:Software Engineer
-Research in the field of medicine, science
-Data collection and analysis
-Integrate data storage solutions
-Implement data security and protection
-Development of project structure
-Database design
Programming the interface for various medical devices
Duration:3 years
Customer:DIFF
Project name:NDA
Description:Development and design of databases for the field of medicine and
pharmacology.
Tools & technologies:Progress 10 4GL , Softserve Explorer, DB and DBMS technologies
Project responsibilities:Software Engineer
-Software development
-Software maintenance
-Algorithm development for DB on DBMS Progress 10 4GL
Duration:6 months
Customer:UA
Project name:«Parus»
Description:Software incorporation and maintenance on the client's side.
Optimization and development of algorithms for DB and DBMS Oracle
(9-th and 10-th versions). Worked with: Ministry of Internal Affairs,
Defence Ministry.
Tools & technologies:
Oracle PL\SQL, SQL PLSQL DEVELOPER, TOAD, Crystal Reports 8.5 and
9.0
Project responsibilities:
Software Engineer
-Obtained professional knowledge in accounting and economics
-Worked with such partial projects: Accounting, Realisation and
storehouse administering, Administrator, Finance administration
Duration:1 year 1 month
Customer:UA
Project name:NDA
Description:Development and design of databases for the district heating utilitiesTools & technologies:FoxPro Visual FoxPro 1С Linux Suse Server 10
Project responsibilities:Network administrator
-Lead engineer developer
-DB improvement, assistance
-New features development
-User support
Duration:2 years
Customer:UA
Project name:NDA
Description:Analyst-developer in drivers design for gears and trip computer of
“Ferrari”, “Porsche”, “Lamborghini”
Tools & technologies:
MS Visual Basic MS Visual C++ MSI HTML, DHTML, CSS JavaScript SQL
Virtual Table MS Access Oracle Win32 API *nix (Linux etc.)
Project responsibilities:
Network administrator
-Maintaining company web-site
-Development of DB with millions of records
-Preliminary algorithm testing
Duration:1 year
Customer:EU
2689
21 0
I spetialize in developing applications for Android operating systems in Kotlin and Java, as well as for IOS, Windows using Dart and Flutter Framework. I spetialize in the development of applications for Android, iOS, Windows using Dart and Flutter Framework. I am engaged in both Back-End and Front-End, using other programming languages (see below). I also own Adobe Photoshop, Adobe Lightroom, Adobe Premier Pro, Adobe Audition, Audacy.
Development of applications within the framework of the Android operating system, as well as other platforms.
EDUCATION
Major "Computer Sciences", specialization "Computer Science", a bachelor's degree and master's degree in Computer Science.
LANGUAGES
Ukrainian (native);
English (Upper-Intermediate B2).
TECHNICAL SKILLS
Programming and technology languages:
Kotlin, Java, XML, Augmented Reality, Dart, Flutter, Python, C#, C, HTML, CSS, Numpy, Matplotlib.
DATABASE TECHNOLOGIES
SQLite, PostgreSQL.
IDE and INTERIMENTS:
Android Studio, IntelliJ IDEA, MS Visual Studio, PyCharm, Scilab, Unity, Vuforia.
VERSION CONTROL
Git, Github.
OTHER
Understanding the principles of OOP, Kiss, Dry, Refactoring;
PERSONAL QUALITIES Honest; Responsible; Attentive to the details; Disciplined; Punctual; I quickly learn new things.
Thank you for taking the time to view my profile.
Sincerely, Alexander
Greetings!
My professional skills span a wide range of areas, including developing parsers, websites, and various types of bots. I have experience in creating both Front-end and Back-end applications.
My skills include:
- Programming languages:
- Python using libraries such as Selenium, BeautifulSoup (bs4), aiogram, telebot, xlsxwriter, Flask, Django, and others.
- Front-end: HTML, CSS, SCSS, JavaScript (JS), TypeScript (TS), React, Redux, Webpack, Gulp, Slick, and others.
- Database work:
- MySQL, Firebase.
- API integration / parsing:
- Ability to connect and utilize various APIs or develop parsers for integration with popular platforms like eBay, Amazon, Facebook, OLX, AutoRia, RST, Hotline, Twitter, as well as real estate websites.
- Data processing:
- Proficiency in efficiently handling data in formats like XLSX, CSV, Google Sheets, XML, and more.
- Additional skills:
- Experience working with version control system Git.
- Proficiency in using design tools like Figma, Photoshop, AfterEffects, and Illustrator.
Additionally, I design logos in Illustrator, create motion design in After Effects, and occasionally delve into work with Blender for 3D modeling.
I am always ready to consider new projects and embrace challenges in the fields of programming and design. My skills will help you create powerful and efficient solutions for your business.
I'd be happy to provide more detailed information about my achievements and projects in a personal message.
Contacts: ✅GitHub Linktr
Thank you!
2373
57 0
2114
27 0
2100
10 0
Passionate and highly effective Developer successful at building Android applications. Well-educated and poised with 7 years of expertise. Focused and driven with strengths in coding and bug resolution. Experience delivering top-notch, well-developed apps that provide service to first responders.
Skills
Programming languages: Java, Kotlin
Android
Toolkit: Android Studio, Android SDK, Android
SDK Platform Tools
App integration tools: Facebook, Google, Apple,
and others. FCM, OneSignal, Pusher, socket.io,
and others
Network: Retrofit, Okhttp, Json, WebSockets
Multithreading: Coroutines, Flow, RxJava
Experience with libraries: Glide, Picasso,
ButterKnife, EventBus, Timber, Volley, Fresco,
MPAndroidChart, greenDAO, AndroidX, LiveData,
WorkManager
Additional: HTML, CSS, Jira
Storage: SQLite, Room, Firestore Database,
Realtime database, SharedPreferences, Android
File System, MediaStore, Firebase storage,
Firebase hosting
Crash/product analytics: Firebase Crashlytics,
AppMetrica, Firebase Analytics, AppsFlyer, New
Relic, Google Analytics
UI: Jetpack Compose, Custom layouts, XML
layouts (FrameLayout/LinearLayout
/RelativeLayout/ConstraintLayout /MotionLayout
etc.), Animations, Material
Knowledge of TDD, MVVM, MVP, SOLID, CI, DI,
Clean Architecture, principles and patterns of OOP
programming, algorithms and data structures
DI: Dagger, Koin, Hilt
Version control: Git, Github, Bitbucket
App optimization: Android profiler, Layout
inspector, Firebase Perfomance
Detailed CV by request
1860
32 0
1779
7 0
Full Stack Engineer, спеціалізуюсь на веб-розробці складних сайтів та рішень для автоматизації бізнес-процесів компаній. Більше 7 років досвіду у веб-напрямку. На професійному рівні володію широким спектром мов програмування, концепцій та технологій для веб-розробки; включаючи, але не обмежуючись: PHP, MySQL, Node.JS, JavaScript, React, Apollo, GraphQL, SOAP & Rest API, jQuery, AJAX, JSON, XML, HTML/DHTML, CSS та парсинг даних, розробка баз даних, тестування, налагодження, звітність та оптимізація. В повсякденній роботі використовуються Zend Framework (2/3, Expressive), Magento 1 та Node.JS. Вибір конкретної технології залежить від поставлених задач.
1467
32 0
LanguagesPHP 5/7, Python, Javascript (ES3/5/6), HTML/CSSPHP-FrameworksYii 2, Symfony 3, Laravel 8Libraries and frameworks JSJQuery, AngularJS 2, Backbone 2; VueJS TechnologiesOOP, MVC, Design patterns, AJAX, RESTful, XML, JSONDocker, Bash, BootstrapAPI, SDKREST API, Apple Pay API, Bambora API, Liqpay API, Facebook API, Linkedin API, Twitter API, Google Map SDKDatabasesMS SQL, MySQL, PostgreSQL, MongoDB, DynamoDB, MariaDBInfrastructure &DeploymentJenkins, Apache, NGINX, Git, GitHub, Amazon Web Services, FTP, Virtual Machine, WAMP, Web Hosting, Vagrant