Senior .NET Developer | AWS & React Innovator

Sii Ukraine LLC

Polska

Hybrid

PLN 150,000 - 210,000

Full time

2 days ago

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Job summary

Sii is seeking a Senior .NET Developer with AWS and React to join our global team in Poland. You will design scalable architectures, contribute to the cloud transformation of a data-intensive platform, and modernize legacy components to ensure performance and reliability.

You will collaborate with engineers, analysts and quality teams, apply SOA concepts, and promote best practices in software design. The role requires deep .NET expertise, AWS experience, and hands-on in Redux and Context API

Qualifications

Minimum 5 years of software development experience focusing on .NET technologies.
Deep expertise in designing and implementing web services.
Practical experience with AWS and cloud environments.
Hands-on mastery of Redux and Context API in React applications.
Strong understanding of software design principles and best practices.
Advanced level of English.

Responsibilities

Contributing to the cloud transformation of a data-intensive analytical platform by designing scalable architectures and modernizing legacy components.
Ensuring continuous technological evolution of the product by proposing and implementing modern frameworks and architectural improvements.
Applying Service-Oriented Architecture (SOA) concepts in software design and development.
Providing timely and courteous support to platform users, ensuring issues are understood, analyzed, and resolved promptly.
Collaborating closely with a team of software engineers, analysts, and quality engineers to design and build software solutions that meet business needs.
Adhering to team design and coding procedures and standards.