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Join Sii as a Senior Python Developer with Golang. Our team will be responsible for accelerating software development and strengthening security through the development of libraries, packages, and tools for two key languages Python and Go (Golang).
The team creates and maintains cutting-edge tools, introduces the latest development solutions, and supports product teams dedicated to cloud storage. The project includes the development of infrastructure, development tools, and the Go and Python ecosystem within a multi-module code repository.
Sii ensures that all employment-related decisions are made solely on the basis of qualifications and competencies. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promoting a diverse and inclusive work environment.
Your tasks
Benefits For You
Refferals program
Solid financial situation
Many experts you can learn from
Contracts with the biggest brands
Mentoring program
14 authentic core values
Inclusive culture based on dialogue
Regular integration events and trips
Passion Sponsorship Program
Open and accessible management team
Profit sharing
Welcome packs & occasional gifts
The team creates and maintains cutting-edge tools, introduces the latest development solutions, and supports product teams dedicated to cloud storage. The project includes the development of infrastructure, development tools, and the Go and Python ecosystem within a multi-module code repository.
Sii ensures that all employment-related decisions are made solely on the basis of qualifications and competencies. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promoting a diverse and inclusive work environment.
Your tasks
- Creating new functionality and maintenance in Python
- Updating rServer to the latest Go SDK/runtime versions and maintaining the Go ecosystem in the repository
- Creating and developing tools for integrating and updating Go libraries (internal and external)
- Improving development tools: debugging, IDE integration and static analysis
- Implementing best practices, creating technical documentation
- Minimum 8 years of experience as a programmer with Python
- Practical experience working with Golang (tools, libraries, ecosystem)
- Ability to work with low-level code or libraries (C/C++ - an added advantage)
- Experience in profiling, performance optimization, and good knowledge of system issues
- Very good knowledge of English - min. B2/C1
- Open to attending meetings with the US team in the afternoons
- Tax Residence in Ukraine is required, and fluency in the Ukrainian language
- Experience working with large systems and build tools (e.g. Bazel)
Benefits For You
Refferals program
Solid financial situation
Many experts you can learn from
Contracts with the biggest brands
Mentoring program
14 authentic core values
Inclusive culture based on dialogue
Regular integration events and trips
Passion Sponsorship Program
Open and accessible management team
Profit sharing
Welcome packs & occasional gifts
Key Skills
Ranked by relevance
python
golang
storage
cloud
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Login to Apply
- Posted
- Dec 20, 2025
- Type
- Full-time
- Level
- Mid-Senior
- Location
- Ukraine
- Company
- Sii Poland
Industries
IT Services
IT Consulting
Categories
Engineering
Information Technology
Related Jobs
3 roles aligned with this opportunity
View Job Details
Related
Golang Developer for IoT / Industrial Data Platform (f/m/x)
2026-05-26
Full-time
Mid-Senior
Poland
IT Services
Engineering
View Job Details
Related
Golang Developer for IoT / Industrial Data Platform (f/m/x)
2026-05-26
Full-time
Mid-Senior
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IT Services
Engineering
View Job Details
Related
Golang Developer for IoT / Industrial Data Platform (f/m/x)
2026-05-13
Full-time
Mid-Senior
Poland
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Engineering