Design and Architecture web applicationVasiliy Kuzmenko
Design clear, scalable backend architectures through data-flow diagrams, OpenAPI-based API specifications, and sequence diagrams for system interactions. I specialize in modeling complex data structures with ER diagrams and optimizing PostgreSQL storage and API queries for efficient, minimal data exchange.
What's included
Architecture diagrams
Architecture diagrams outlining how processes should works, in simple Flowchart diagrams, Architecture diagrams or even Archimate diagrams.
Data diagrams
Class, Sequence, Entity Relationship, Database diagram in DbSchema format or exported to html/pdf format to view easily.
Documentation
Document that describe and explain how process project to works with examples, explain data flows and decision.
OpenAPI Specification
OpenAPI 3.x specification in json/YAML format or via stoplight.io
FAQs
I primarily use OpenAPI (Swagger) via stoplight.io for API specifications, mermaidchart.com for diagrams, and dbSchema for data modeling and storage.
I can do both. I’m experienced in analyzing and optimizing legacy systems as well as building structured, scalable APIs from the ground up.
Existing systems mostly need to fix issues with overfetch unnecessary data, and create strong contracts between data providers (for both internal and external).
I focus on sending only the necessary data, use efficient query patterns in PostgreSQL, and design endpoints with performance in mind from the start.
Yes, I deliver comprehensive technical documentation, including OpenAPI specs, diagrams, and database schemas.
Mostly web applications, internal tools, and data-driven platforms that require clear API structure, solid database design, and optimized data flow.
Vasiliy's other services
Starting at$75 /hr
Tags
Google Drive
LucidCharts
PostgreSQL
Data Analyst
Researcher
Software Architect
Service provided by
Vasiliy Kuzmenko proAmsterdam, Netherlands
Design and Architecture web applicationVasiliy Kuzmenko
Starting at$75 /hr
Tags
Google Drive
LucidCharts
PostgreSQL
Data Analyst
Researcher
Software Architect
Design clear, scalable backend architectures through data-flow diagrams, OpenAPI-based API specifications, and sequence diagrams for system interactions. I specialize in modeling complex data structures with ER diagrams and optimizing PostgreSQL storage and API queries for efficient, minimal data exchange.
What's included
Architecture diagrams
Architecture diagrams outlining how processes should works, in simple Flowchart diagrams, Architecture diagrams or even Archimate diagrams.
Data diagrams
Class, Sequence, Entity Relationship, Database diagram in DbSchema format or exported to html/pdf format to view easily.
Documentation
Document that describe and explain how process project to works with examples, explain data flows and decision.
OpenAPI Specification
OpenAPI 3.x specification in json/YAML format or via stoplight.io
FAQs
I primarily use OpenAPI (Swagger) via stoplight.io for API specifications, mermaidchart.com for diagrams, and dbSchema for data modeling and storage.
I can do both. I’m experienced in analyzing and optimizing legacy systems as well as building structured, scalable APIs from the ground up.
Existing systems mostly need to fix issues with overfetch unnecessary data, and create strong contracts between data providers (for both internal and external).
I focus on sending only the necessary data, use efficient query patterns in PostgreSQL, and design endpoints with performance in mind from the start.
Yes, I deliver comprehensive technical documentation, including OpenAPI specs, diagrams, and database schemas.
Mostly web applications, internal tools, and data-driven platforms that require clear API structure, solid database design, and optimized data flow.
Vasiliy's other services
$75 /hr