Serhii-Mykhailo O. Profile

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5,0

(1 arvostelu)

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$20 USD / tunti

lviv,

ukraine

$20 USD / tunti

Aika on tällä hetkellä 7:41 ap. täällä

Liittynyt maaliskuuta 31, 2024

1 Recommendation

Serhii-Mykhailo O.

@SerhiiOstapiv

5,0

(1 arvostelu)

1,3

60%

$20 USD / tunti

lviv,

ukraine

$20 USD / tunti

100 %

Suoritetut työt

100 %

Budjetin mukaisesti

100 %

Aikataulussa

Ei saatavilla

Uudelleenpalkkausaste

Senior full stack developer && Data Scientist

I'm a Senior Full-Stack Developer and Solution Architect with more than 7 years of experience. I've got a bunch of skills and I'm pretty good with lots of different technologies. Here's what I'm good at: - Python: build stuff for the ✔Backend✔ of site and ✔Scrape✔ data from the site. - Working with Websites: frameworks like ❤Express, Flask, Django, and FastAPI ❤. - Handling Data in Databases: MongoDB, MySQL, MariaDB, PostgreSQL, and Redis. - Getting Data from the Web: grab data from websites efficiently. - Building Minimum Viable Products (MVPs) - Designing User Interfaces: interfaces that are easy and intuitive for people to use. - Developing Web Applications: a bunch of web apps. - Creating Browser Extensions: how to make extra tools for web browsers. - Joining Existing Teams: fit in well with teams that are already working on projects. - Keeping Projects Running Smoothly: maintaining and improving projects. - Using DevOps Practices: development and deployment processes run smoothly. - Designing Efficient Solutions: scalable and efficient solutions to problems. - Providing Expert Advice: offer expert guidance on development projects. - Testing Websites: Pytest and Selenium to make sure everything works smoothly. Here are some of the technologies I work with: - Programming Languages: Python, JavaScript, TypeScript, Flow, NodeJs, Perl, Java. - Frameworks: Django, Flask, FastAPI, ReactJS/Native, Express, NextJs, Angular, VueJs. - API Technologies: RESTful, GraphQL, OpenTracing, AMQP (RabbitMQ). - Databases: MongoDB, MySQL, MariaDB, PostgreSQL, Redis. - Infrastructure & Deployment: Kubernetes, Helm, Docker, Terraform, Amplify, Firebase. - Authentication & Authorization: OAuth2, Keycloak, Auth0, Cognito. - Build Tools: Babel, Webpack.

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Portfolio

Project goal In this project, I took charge of designing how everything would work and building the part of the software that handles data behind the scenes. I used a technology called Node.js with Express.js to do this.

A big challenge I faced was making sure that the part of the software users interact with (the frontend) and the part that handles data (the backend) worked smoothly together.
This meant I had to be really careful about how I managed things like storing data, using databases, and connecting to other services.

To tackle these challenges, I carefully chose the best ways to store and organize the data based on what the project needed.
I also made sure the databases I used were set up efficiently to handle lots of data without slowing things down. On top of that, I built checks into the system to make sure the data was always correct and secure.
Lastly, I set up systems to make sure that the data stayed consistent across different parts of the software.

Backend Development - Mathmatical

In this project, I took the lead in building the frontend part of the application while working closely with the Python/Django backend team.
I made sure to include important features like user authentication, the main landing page, navigation, and login functions on the frontend side.

During the project, I faced a few challenges, especially in getting the frontend and backend to communicate smoothly and dealing with some tricky user interface issues.

To tackle these challenges, I used some advanced methods like WebSocket and Server-Sent Events (SSE) to make sure real-time updates and interactions worked well.
I also used frameworks like Next.js and Gatsby to make the website faster and more user-friendly by rendering pages on the server.

Thanks to these solutions, I delivered a project that's flexible, reliable, and went above and beyond what the client expected.

frontend development for Fractal Project

I built a web scraper using Python and Selenium to gather data from different websites.
I faced tough challenges like websites blocking my IP address and using anti-bot systems.

To get around these problems, I used IP rotation and site-specific fingerprinting techniques.
These tricks allowed me to collect data smoothly without getting blocked.

My scraper successfully grabbed real-time flight details from the target website and saved them in both MongoDB and CSV files.
It was built to be strong and adaptable, able to outsmart the anti-bot measures put in place by the flight website.

Development web scraper for omio flight site

Backend Development - Mathmatical

frontend development for Fractal Project

Development web scraper for omio flight site

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Suodata arvosteluja:

5,0

€30,00 EUR

Senior Web Scraper - Python, Selenium, Php, Puppeteer & Node.js

Serhii did the job very well and showed to have a deep knowledge of the matter he did the job within the time we agreed and kept me informed of the progress of his work all the time he came with very useful suggestions wich were very helpfull his languge skills (english) are very good I will certainly hire him again in the furure and would recommend him