Senior Core Systems Engineer

Disney; Helsinki; On-site; EUR 90,000 - 130,000; Full time

Job summary

Disney Digital Entertainment is seeking experienced senior programmers to advance Unreal Engine and UEFN development. You will work across C++, Verse, and Python to extend engine capabilities and internal tools, delivering high-performance experiences for global audiences.

You will lead core-system improvements, collaborate with designers and producers, and contribute to AI-powered development initiatives, while documenting decisions and maintaining robust workflows.

Qualifications

• You have significant professional experience with C++ and Unreal Engine across engine and tools development.
• You can design and optimize game-engine workflows and tooling.
• You are comfortable with Verse for UEFN and Python for automation.

Responsibilities

• Drive Unreal Engine and UEFN development, shaping the technology platform.
• Write clean, maintainable code across C++, Verse and Python.
• Lead core system improvements that speed up development.
• Build and evolve internal tools, pipelines, and source-control infra.
• Contribute to AI-powered development and tooling strategies.

Skills

C++

Unreal Engine

Engine and tools development

Verse

Python

Source control

Tools

Source control

Job description

Job Summary:

About the Role & Team

Disney Digital Entertainment, a division of Disney Entertainment, is redefining how audiences interact with The Walt Disney Company. The mission is creating the ‘digital front door’ that unites all of Disney’s magic into a new interactive universe.

Disney Digital Entertainment is seeking talented individuals passionate about pushing the boundaries of game engine technology. As a critical part of our team, you will leverage your expertise to build and optimize feature-rich engines, ensuring smooth and high-performance experiences for global audiences.

This role will report to the Director of Engineering, Game Engines. The team is fully remote across the Nordic region.

Values

You’ll join a team grounded in our Disney values — acting with Integrity, welcoming everyone through Inclusion, embracing boundless Creativity, working together through Collaboration and caring deeply for our Community . These values shape how we work and how we support one another every day.

What You Will Do

Drive Unreal Engine and UEFN Development

Use your deep experience with Unreal Engine to build and extend the systems that game teams rely on. You will work across Unreal Engine and UEFN, help shape the technology platform that game teams build on, and identify where it needs to go next.

Versatile Senior Programmer (C++, Verse, Python & More)

Write clean, maintainable code in the language best suited to the problem. You will move between C++ for engine and tools work, Verse for UEFN, and Python for automation and internal tooling, solving practical problems across the stack.

Core Systems Contributor

Lead improvements across the core systems that underpin Unreal Engine and UEFN development at Disney. Contribute directly and help teammates make development faster, smoother, and more enjoyable.

Tools and Pipeline

Build and evolve the internal tools that game teams depend on, including developer workflow automation, pipeline improvements, and source-control infrastructure.

AI-Empowered Development

Use AI coding tools in your daily work and help push the boundaries of what is possible. The team actively invests in leveraging AI to improve workflows and expects senior engineers to contribute to raising the bar.

• You see good documentation as part of delivering a complete solution. You take ownership of your work and make sure others can build on and maintain it, documenting systems, decisions, and workflows clearly so teammates can understand what has been done and why.

• Work closely with engineers, designers, and producers. Be part of creating a supportive, cross-functional environment. Share ideas, provide technical guidance, and help grow the team’s skills.

Required Qualifications & Skills

• Experience & Technical Expertise

  You have significant professional experience with C++ and Unreal Engine, and a broad background across engine and tools development, systems refinement, feature implementation, and workflow optimization. You understand how pieces fit together across a tech stack, not just the parts you are directly working on.

• Curiosity & Exploration

  You are curious, eager to learn, and always up for experimenting with new ideas and approaches. You ramp up on unfamiliar domains using documentation, AI tools, and your teammates, rather than waiting for formal training.

• Team-Oriented Mindset

  You enjoy collaborating across disciplines, mentoring others, and supporting teammates to keep projects moving smoothly. The team is small, so mutual support matters.

• Clear Communicator

  You are comfortable sharing ideas, providing updates, and explaining technical concepts to engineers, designers, and stakeholders.

• Strategic Problem-Solver

  You take initiative, identify opportunities early, and are comfortable turning a rough direction into a delivered outcome. You thrive when you can shape the plan, not just execute one.

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The Walt Disney Company is an Equal Opportunity Employer. We strive to be a diverse workforce that is representative of our audiences, and where all can thrive and belong. Disney is committed to forming a team that includes and respects a variety of voices, identities, backgrounds, experiences and perspectives.

We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation.