Senior Migration Engineer (Freelance)

4 500 - 6 300 USDNet per month - B2B
Architecture

Senior Migration Engineer (Freelance)

Architecture
Zabłocie 43A, Kraków

N-iX

Freelance
B2B
Senior
Remote
4 500 - 6 300 USD
Net per month - B2B

Job description

About the client:

Our customer is the European online car market with over 30 million monthly users, with a market presence in 18 countries. As a Senior Atlassian Engineer, you will play a pivotal role in shaping the future of online car markets and enhancing the user experience for millions of car buyers and sellers.


Responsibilities:

  • Organise the migration of Slack and Atlassian from one company to another with data preservation 


Requirements: 

  • 4+ years of experience as an Atlassian Engineer or a similar technical role.

  • Proficiency with JCMA (Jira Cloud Migration Assistant) and CCMA (Confluence Cloud Migration Assistant).

  • Ability to map custom fields, issue types, and complex workflows from the old instance to the new one without losing history.

  • Skill in auditing 3rd-party marketplace apps (e.g., ScriptRunner, Tempo)

  • Experience moving multiple workspaces into a single Slack Enterprise Grid org.

  • Familiarity with Slack's Corporate Export tools and handling JSON/CSV data files.

  • Experience with connecting Jira, Confluence, and Bitbucket "hooks" in the new Slack environment.

  • Skills of configuring Okta, Azure AD, or Google Workspace with Atlassian Access and Slack.

  • Experience with Python/Bash Scripting

  • Deep SQL knowledge

  • English level - upper intermediate or higher 


We offer*:

  • Flexible working format - remote, office-based or flexible

  • A competitive salary and good compensation package

  • Personalized career growth

  • Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)

  • Active tech communities with regular knowledge sharing

  • Education reimbursement

  • Memorable anniversary presents

  • Corporate events and team buildings

  • Other location-specific benefits

*not applicable for freelancers

Tech stack

    English

    C1

    JCMA

    advanced

    CCMA

    advanced

    Atlassian

    advanced

    Slack Enterprise Grid

    regular

    Okta

    regular

    Azure AD

    regular

    Google Workplace

    regular

Office location

Published: 23.01.2026

About the company

N-iX

N-iX is a global software development service company that helps businesses across the globe create mind-blowing software products. Founded in 2002, today we’re a team of 2,200+ tech-savvy professionals working on innova...

Company profile

Senior Migration Engineer (Freelance)

4 500 - 6 300 USDNet per month - B2B
Summary of the offer

Senior Migration Engineer (Freelance)

Zabłocie 43A, Kraków
N-iX
4 500 - 6 300 USDNet per month - B2B
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Senior Migration Engineer (Freelance) - N-iX