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Offer summary
(Summary generated by AI based on the full job description)
The project focuses on mainframe system modernization for a global IT company, working with C# and IMS. Responsibilities include developing and maintaining legacy system components, transforming architecture, and integrating with modern platforms. Tasks involve performance analysis, stability improvements, and production support. Benefits include private healthcare, life insurance, and sports activity co-funding.
from: 8 September 2026
to: 8 October 2026
salary not specifiedB2B contract (full-time)
Salary details
basic salary
Offer parameters
level:mid
working mode:remote
location:Gdańsk, Pomeranian
Gdańsk, Pomeranian
Requirements
Expected technologies
C#
Our requirements
- Strong experience as a Software Engineer working with C# and mainframe environments (IMS)
- Solid understanding of legacy system architectures and modernisation approaches
- Experience in working with enterprise‑level systems and complex integrations
- Good command of English (B2+/C1), enabling effective communication in an international environment
- Ability to work collaboratively in distributed teams and communicate with both technical and non‑technical stakeholders
Your responsibilities
- Design, develop and maintain components of a legacy mainframe system with a focus on modernisation initiatives
- Work with C# and IMS technologies to enhance and extend existing system functionalities
- Participate in system transformation efforts, including refactoring and integration with modern platforms
- Collaborate with architects, developers and stakeholders to define technical solutions aligned with business needs
- Analyse existing code and propose improvements to increase performance, stability and scalability
- Support troubleshooting and debugging in production and non‑production environments
About the project
For our client, a global IT services company specialising in managing and modernising business‑critical systems and platforms for enterprise customers (including cloud, mainframe and hybrid environments), we are looking for a Software Engineer with strong experience in C# and IMS (mainframe). You will be responsible for supporting and driving the modernisation of an existing mainframe system, contributing to the transformation of legacy architecture into more scalable and maintainable solutions, while collaborating with international teams in an English‑speaking environment.
What we offer
- Work model: fully remote
- Start: ASAP
- Project duration: initially 7 months, with the possibility of extension
- Employment type: B2B contract via KUBO
- Salary: it depends on your experience
- Benefits: life insurance, private healthcare, Multisport card, and development support (including co‑funding of certifications)
Benefits
- sharing the costs of sports activities
- private medical care
- life insurance
Recruitment stages
- 1.Initial call with a KUBO recruiter
- 2.Interview(s) with the client
- 3.Decision, feedback and support through offer and onboarding
This is how we work
Software Engineer (C# + Mainframe)
I apply to:
KUBO
Gdańsk, Pomeranian
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