Responsibilities:- Communication with customers to identify business requirements.- Task assignment and coordination with developers.- Development of requirements, including system modeling.- Design and description of integrations.- Documentation of design solutions.- Participation in implementation, migration, and support.- Database design.- Interface design.- Use case design.- Sequence diagram design.- Microservice architecture design.

Development of applications for analyzing competitors on marketplaces and adjusting prices based on the analysis of the situation.The applications were developed from scratch and are kept up to date by me until now.The following marketplaces are connected:- G2A- Eneba- Kinguin- Gamivo- k4g- CodeswholesaleWays to interact with marketplaces:- official API- unofficial API (analyzing marketplace requests in the browser)- REST API development for purchasing from our server (availability, booking, payment, etc.)- CRM for product management (thin client, WPF)

API for banking mobile app:- Onboarding process,- Account management- Transaction management- Connect for payments one of the bank of England- Reports- KYC- ComplianceAPI for Restaurant:- Landing- Menu,- Staff management- Kitchen- Orders- Payments (POS terminal)- Tips

During my time in freelancing I have completed 200+ projects of varying complexity. I worked both alone and in a team.When discussing projects with the customer, I always tried to find the best solution based on requirements, time, and cost. Often provided several options for solving the problem with justification of pros and cons of each.As I worked on orders, I read, watched and learned a lot. I moved from shitty code to flexible, supported and scalable systems. It wasn't always important to the customer (the main thing is that it works), but it is important to me. I am guided by the KISS principle (often business needs a ready solution yesterday), I am good at subsequent refactoring if it is clear that the solution is not a one-time thing and the project has a long life.It was interesting to try a large number of languages and technologies. I perceive any language and technology as a tool. I wrote in python, php, javascript, google script, etc. But C# remains the main one.- CRM (small, medium)- service integrations- WEB API development- bots- utilities- parsers- refinement and support of existing solutions- and many other things, I won't remember all of them)

Development of an application for estimating the cost of an audit.