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Interview R.

R. Z.

certified

LumioAI certified

$6,000 mo.
Software Engineer
7+ years of experience
Ukraine

Expertise

Python
Node
Next
React
Typescript
Firebase
REST API
GraphQL

Performance summary:

Rostyk is a highly skilled Software Engineer specializing in modern web technologies and scalable application development. With deep expertise in backend and frontend frameworks, he builds high-performance, maintainable solutions. His mastery of APIs, cloud services, and real-time applications makes him a top choice for innovative, production-ready software development.

Python
Python98%
Senior-level

An expert in Python, skilled in building efficient backend systems, optimizing API performance, and handling data processing. Proficient in writing clean, scalable code, integrating databases, and leveraging asynchronous programming for high-performance applications. Ensures robust, maintainable solutions tailored for complex software architectures.

certified

Node

Node97%
Senior-level

A specialist in Node.js, adept at building scalable, high-performance backend systems. Experienced in developing RESTful and GraphQL APIs, implementing real-time features with WebSockets, and optimizing server-side logic. Ensures efficient, maintainable, and secure applications with best practices in asynchronous programming and microservices architecture.

certified
Typescript
Typescript98%
Senior-level

An expert in TypeScript, proficient in building scalable, type-safe applications with robust error handling. Skilled in structuring large codebases, optimizing performance, and ensuring maintainability. Leverages TypeScript’s static typing and advanced features to enhance code reliability, reduce bugs, and improve overall development efficiency in both frontend and backend projects.

certified

Firebase

Firebase97%
Senior-level

A specialist in Firebase, adept at building scalable, serverless applications with Firestore, Realtime Database, and Cloud Functions. Experienced in authentication, cloud storage, and push notifications. Ensures seamless integration, real-time data synchronization, and secure, high-performance solutions optimized for modern web and mobile applications.

certified

A highly adaptable and solution-oriented professional with strong communication and teamwork skills. Thrives in fast-paced environments, collaborates effectively across teams, and excels in problem-solving. Brings a proactive mindset, attention to detail, and a commitment to delivering high-quality, scalable solutions in every project.

Communication skills
Top score
Teamwork
Top score
Work under pressure
Top score
English language
Fluent
Problem-solving
Top score
Meets deadlines
Top score
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