Senior Fullstack Engineer - Java/React/TS (Hybrid)

Sii Ukraine LLC

Katowice

Hybrid

PLN 120,000 - 180,000

Full time

14 days+

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Job summary

Sii Ukraine LLC in Katowice is looking for a developer to work on an advanced planning platform, building and integrating backend and frontend layers to deliver a cohesive, scalable solution across multiple markets.

The project is in active development with a strong focus on performance, reliability, and architectural direction, including the use of AI and LLM tools to support daily work. On-site presence is expected, with 1 day in the Katowice office per quarter.

Skills

Backend development
Frontend development
AI/LLM tools

Job description

Sii Ukraine LLC in Katowice is looking for a developer to work on an advanced planning platform, building and integrating backend and frontend layers to deliver a cohesive, scalable solution across multiple markets.

The project is in active development with a strong focus on performance, reliability, and architectural direction, including the use of AI and LLM tools to support daily work. On-site presence is expected, with 1 day in the Katowice office per quarter.

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