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Senior/Staff Software Engineer (Common Lisp)

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Keepit

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Location:
Poland , Kraków

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

Not provided
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Job Description:

We are seeking a skilled software engineer with deep expertise in Common Lisp and a passion for building robust, high-quality systems. This role involves owning complex components and features, as well as contributing to key architectural decisions. You will join the Platform Core team, responsible for building and maintaining the foundation that supports all product innovation, enabling teams to scale faster and deliver reliable customer experiences. Proactiveness, initiative and strong decision-making are essential for this role.

Job Responsibility:

  • Lead technical design and architecture for features and services
  • Participate in all phases of the software development lifecycle
  • Collaborate with Support to troubleshoot issues and deliver timely fixes
  • Work with Operations to drive performance improvements
  • Identify technical gaps and drive effective solutions
  • Maintain high quality by promoting clear documentation, strong code quality, and architectural enhancements
  • Ensure system reliability, including error handling, observability, and scalability

Requirements:

  • Good Common Lisp understanding
  • Experience in microservices, distributed systems, and building high-performance job scheduling systems
  • Used to working with sbcl, emacs, slime
  • Experience developing on Linux systems
  • General SQL understanding
  • Good understanding of TCP/IP, HTTP, RESTful APIs, and XML
  • Strong initiative and a proactive mindset, with a willingness to share knowledge, and support a collaborative environment
  • Strong communication skills, with the ability to work effectively in a team

Nice to have:

  • Working knowledge of git and GNU Make
  • Familiarity with C++

Additional Information:

Job Posted:
May 16, 2026

Employment Type:
Fulltime
Work Type:
Hybrid work
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