C++ Programmer - Crusader Kings mod tools

Join Paradox Interactive as a C++ Programmer for Crusader Kings III mod tools. Your mission is to empower CK3's creative player communities by building tools, improving pipelines, and partnering with modders and developers to deliver polished, community-driven content. You will also support creator collaborations from the technical side, shaping clear workflows, unblocking issues fast, and keeping quality high. This role is for a community-minded developer who values creator-driven content, combining structure and technical rigor with empathy for players and creators.

Must Have

• Build and maintain mod tools and docs (from new script capabilities to reliable workflows)
• Support UGC development end-to-end (integration, optimization, and technical validation)
• Provide hands-on technical support to modders in community channels
• Pitch in across CK3 tech when needed to keep teams moving
• Deep understanding and appreciation of Crusader Kings III
• Practical experience with CK3’s scripting system
• Solid C++ development skills
• Clear written and verbal communication; collaborate well across crafts
• Familiarity with modding tools, pipelines, or community workflows
• Fluency in English

Perks & Benefits

• A values-driven culture: empathetic, curious, collaborative, low-ego, and high-ownership
• Supportive ways of working: open communication, respectful debate, and resilience when things change
• A mission that matters: helping creators thrive and extending the life and joy of our games through user-generated content
• 30 days paid vacation

Join us to empower CK3’s creators, evolve our modding tools, and help ship high-quality community content with passionate players, creators and developers.

Your mission

As a C++ Programmer for Crusader Kings III mod tools, you’ll strengthen one of Paradox’s most creative player communities. You’ll nurture and enable the modding scene by building tools, improving pipelines, and partnering with modders and developers to deliver polished, community-driven content. You’ll also support creator collaborations from the technical side - shaping clear workflows, unblocking issues fast, and keeping quality high.

What you’ll do

• Build and maintain mod tools and docs - from new script capabilities to reliable workflows.
• Support UGC development end-to-end - integration, optimization, and technical validation.
• Provide hands-on technical support to modders in our community channels.
• Pitch in across CK3 tech when needed to keep teams moving.

What you’ll bring

• Deep understanding and appreciation of Crusader Kings III.
• Practical experience with CK3’s scripting system.
• Solid C++ development skills.
• Clear written and verbal communication; you collaborate well across crafts.
• Familiarity with modding tools, pipelines, or community workflows.
• Fluency in English.

Who you are

A community-minded developer who values creator-driven content. You combine structure and technical rigor with empathy for players and creators, and you’re comfortable moving between players, creators, and production teams to help great ideas ship.

What you’ll get

• A values-driven culture: empathetic, curious, collaborative, low-ego, and high-ownership. We listen first, learn fast, and favor outcomes over ego.
• Supportive ways of working: open communication, respectful debate, and resilience when things change - because live games and user-generated content are dynamic by nature.
• A mission that matters: helping creators thrive and extending the life and joy of our games through user-generated content.

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Department

Product & Publishing

Locations

Stockholm, Sweden