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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
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About me Hello, my name is Alexey, and I am a freelancer with more than 5 years of experience. I specialize in developing web applications on Python and Django, as well as performing various tasks that are not related to programming, such as writing articles, translating texts, creating presentations and designing graphics. I love my job and always strive for quality, deadlines and customer satisfaction.Skills and technologies Python: knowledge of the basics of the language, the standard library, OOP, functional programming, asynchrony, testing and debugging code. Use of popular frameworks and libraries, such as Django, Flask, Requests, BeautifulSoup, Scrapy, Pandas, Numpy, Matplotlib, Scikit-learn, TensorFlow, PyTorch and others. Django: knowledge of the framework architecture, models, views, templates, forms, authentication, admin, REST API, signals, migrations, caching, security and performance optimization. Use of extensions, such as Django REST Framework, Django Channels, Django Celery, Django Allauth, Django Crispy Forms and others. HTML, CSS, JavaScript: knowledge of the basics of layout, styles, animation, responsiveness, semantics, validation, DOM, events, AJAX, JSON, jQuery, Bootstrap, Tailwind and other frameworks and libraries for creating interactive and beautiful web pages. SQL, NoSQL: knowledge of the basics of relational and non-relational databases, SQL language, ORM, CRUD operations, indexes, transactions, normalization, denormalization, aggregation, replication, sharding and other aspects of working with data. Use of DBMS, such as PostgreSQL, MySQL, SQLite, MongoDB, Redis and others. Git, GitHub, GitLab: knowledge of the basics of version control system, branching, merging, commits, pull requests, conflicts, code review, CI/CD, hooks and other tools for collaborative development and deployment of projects. Linux, Bash, SSH, FTP, AWS, Heroku, Docker, Nginx, Gunicorn, uWSGI: knowledge of the basics of working with the command line, remote access, file transfer, cloud services, containerization, web servers, application servers and other technologies for setting up and supporting web applications in different environments. English language: level C1, fluent in spoken and written English, experience in translating technical and informal texts from English to Russian and from Russian to English, participation in international projects and communication with foreign clients and colleagues. Writing articles: ability to write engaging, informative and grammatically correct articles on various topics, including scientific, educational, entertainment, travel, personal and others. Knowledge of the basics of SEO, keywords, headlines, structure, style and tone of the text, checking for uniqueness and spelling. Creating presentations: ability to create creative, colorful and effective presentations on various topics, including business, education, marketing, sales, art and others. Knowledge of the basics of design, color palette, fonts, images, charts, animation, transitions and other elements to attract attention and retain interest of the audience. Designing graphics: ability to create high-quality, original and attractive graphic images on various topics, including logos, banners, posters, flyers, illustrations, icons, emojis and others. Knowledge of the basic principles of design, composition, color, shape, texture, contrast and others. Use of programs, such as Photoshop, Illustrator, GIMP, Inkscape and others.Projects and work experience Web application for task management: developed a fully functional web application on Python and Django, which allows users to create, edit, delete, assign, sort and filter tasks, as well as view statistics on task completion. Used PostgreSQL for data storage, Bootstrap for layout, jQuery for interactivity, Django REST Framework for API, Celery for asynchronous tasks, Redis for caching and message broker, Heroku for deployment and GitHub for version control. The project code is available at the link [here], and the demo version at the link [here]. Web scraper for collecting data about books: wrote a script on Python, which collects data about books from the site [Goodreads], such as title, author, genre, rating, description, cover and others. Used Requests for sending requests, BeautifulSoup for parsing HTML, Pandas for processing and saving data in CSV format, Matplotlib for visualizing data in the form of graphs. The script code is available at the link [here], and the results of data collection at the link [here]. Article on the benefits of freelancing: wrote an article in Russian about the benefits of freelancing compared to office work, in which I told about my experience, gave arguments and facts, as well as.
Started programming when it wasn't mainstream yet. Moreover, when most people saw a computer only on TV, and phones still had discs and wires. I taught my computer science teacher how to program, and the professors at the university kicked me out of lectures because I corrected their mistakes out loud
Crazy experience in programming business applications
My programs work at enterprises from self-employed to corporations with several thousand employees (most corporate systems are under DNA)
Any relational and noSQL databases
I love difficult tasks and new challenges. There are no tasks that cannot be solved, there are only time and budget constraints
All my programs have a lifetime guarantee - any error is corrected without any time-limits
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Hello everyone!
My name is Taras Skorokhod, and I am a developer with 2 years of commercial experience.
My specialization is the development of full-stack applications, where I utilize the latest tools to achieve maximum product optimization and user comfort.
Over this time, working in various companies, I have come to realize that my true goal is to work with my own clients and provide them with the highest level of service.
For me, top-notch service and a quality product are of utmost importance, so I can confidently say that you can entrust me with your future project.
Here are the skills and technologies I work with: JavaScript and TypeScript Next.js Framework React Library Developing applications with React Native Utilizing Redux and Redux Toolkit UI libraries: Bootstrap, Material UI, Tailwind CSS, Styled components Working with HTML, CSS, SASS, SCSS Server-side JavaScript with Node.js and Express.js Developing RESTful APIs Working with relational databases: MySQL, PostgreSQL, SQLite, as well as NoSQL databases like MongoDB Using build tools such as Webpack and Gulp Knowledge of Java and Java Spring Working with design layouts in Figma and Photoshop I am ready to discuss your future project. The first video consultation is free of charge.
I look forward to assisting you in bringing your ideas to life and ensuring high-quality service.
Thank you for your attention, and I wish you success in your work!
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Hi, my name is Maksym!
Results-oriented Javascript developer with experience managing and supporting existing PowerBI dashboards. Successfully redesigned dashboards to solve problems with data integration, constant updates, and specific client requirements. Implemented a standardized data entry format for all clients, which reduced the time of routine work from 30 minutes to 1 hour to 2-3 minutes.
Improved the design of the dashboard with adapted visual elements for each agency and client, which led to a more concise and informative presentation (reduced from 3-4 slides to 2 slides). Proven ability to optimize workflows and improve user experience while meeting tight deadlines. An intermediate level of English is required.
Skills:Front-end:React.jsJavaScriptTypeScriptHTML/CSSSCSS/SassSCSS/Sass Back-end: Node.js SQL (Relational) Version Control: Git Data Analysis: Microsoft Power BI Microsoft Power Query Microsoft Power Query Visual Studio Code Microsoft Office
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I have 3 years of programming experience in C#, JavaScript, Java (Kotlin), Dart. I make Restful client-server web applications, I have development skills for Android and IOS.
For my work I use:
- Spring Framework
- Vue
- React
- Nest
- Docker
- Git
- Virtual box
- Gulp
- Flutter
- relational SQL databases
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I am Anna. I live in Ukraine. I offer copywriting, UI\UX design and content management services.
She graduated from the KhDAK with a specialty in "Telereporting". For more than seven years, she worked as a TV journalist and TV presenter in a regional television and radio company. Actually, this is how another dream of mine came true
Member of the National Union of Journalists. I have diplomas of All-Ukrainian television festivals.
There was a path from "news school" to "art journalism". Later I came to the Internet, where I remain today. She graduated from courses on creating websites. And then she created her own blog about children and motherhood. She promoted it and filled it with content. The maximum number of visitors on my blog has exceeded 1000.
Then she took another new step for herself - she wrote information books on the topic of business and motherhood.
My experience in copywriting is more than 11 years. I write on various topics for SEO and, of course, for people. Favorite topics include:
Psychology. Children's Social. Women's Tourism. Motherhood. Relations.
I can also write on other topics. I prepare copywriting, rewriting, posts for social networks, selling texts, articles for blogs, texts for promotion.
I also have experience as a content manager. If necessary, I can place texts and images on the site.
I am a UI\UX designer
I have a web design school certificate. I create landing pages and online stores at Figma. I can work with any subject.
I suggest creating prototypes until full agreement. It is important for me that the customer remains completely satisfied with the result.
I am also preparing adaptive versions for different devices. This creative work fascinates me, and therefore I constantly work on my skills, improving them.
Pricing policy and guarantees
Democratic. In case of large volumes, we can discuss the price individually.
I guarantee literacy, decency, punctuality. It's not the norm to let people down and disappear. So you can rest assured that the work will be done on time.
You can always negotiate with me. In general, I am impressed by customers who know what they want. But even if you have never contacted freelancers before, write and we will definitely solve everything
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3D product rendering 3D content for product card (online store, directories like amazon & catalogs & websites) 3D models any complexity VISUALIZATION (white fon & interior) Animation GIF 3D Video!Create an image for manufacturers and sellers - different types of goods (furniture, building, household goods and etc.) which as a result gives them photorealistic images and videos for advertising and selling their goods.Since 2007 until now - cooperation with furniture manufacturing companies in different countries.Using program 3Dmax + Corona visualizer, post processing images in Photoshop.Video editing Premiere PRO. My education 2002-2007 Lesya Ukrainka Volyn National University, in the specialty "International economic relations" 2011 - Kyiv educational center "Uspeh", in the specialty 3DMax+ArchiCAD2020 - AMS Autodesk Authorised Trening Centre, in the specialty vizualization in 3Dmax / Corona
Regular clients:
Stardis - household goods
Klen - furniture
Block modul - building
LED "ТИС"
Sanwerk - bathroom furniture and LED mirrors
Furniture factory Pehotin
smart.md - Furniture storePortfolio: https://www.behance.net/milaplakas https://freelancehunt.com/freelancer/milaplakas.html
Website development · Web design
Dnepr, Ukraine
Success is a state of pride in one's work.
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Hello. I do design because I’m not happy that when I go to a website I have to fill out 20 unnecessary forms or look for a description of the product and an argument for why I need it and from this particular company. The time when websites did not have functionality for business is over.
There is a misconception that web design is just about pretty pictures. I don't agree with this! After all, high-quality design solves the user’s problem as quickly and easily as possible with a minimum number of actions for him; It also solves business problems in a comfortable format for the target audience. This is how I see web design.
It is important to create high-quality websites and interfaces that you would like to use yourself.
I achieved what I have now thanks to fruitful work. For me, productive work is a path of unlimited achievements that requires me to demonstrate such qualities as creativity, determination, and willingness to deal with any failures. This is not an aimless repetition of certain “working” movements. It is a conscious and rational creative process.
I always take responsibility for the results of my activities. I am honest with the client and expect the same from him. I use all my knowledge and skills to create high-quality designs that I can be proud of and could use myself.
My specializations:
- Turnkey website creation
- Site design
- Layout (HTML5, CSS3, JS)
- Integration with CMS (MODx, WordPress, OpenCart/OcStore)
- Landing Page
- Online store
- Business card website
- Promo page
- Interface design
- Prototyping
Write to me if you are interested in cooperation.