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Senior Engineer, Core

plPosted 21 Aug 2026

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About this role

As a Core Engineer you will use your experience with Unreal Engine core code discipline to find the best ways to use Unreal Engine to develop believable large open-world games and, when needed, find ways to shape and push the technology further. In this role, you will become part of the Team responsible for developing Streaming solutions, editor tools, physics engine support and engine level optimizations. As someone who has significant experience with Unreal Engine , you will be working with and guiding the whole project to build solid technology for the new Witcher saga and our future games.

Daily Responsibilities Developing and maintaining core technology systems built on Unreal Engine. Proposing and implementing solutions to the technical demands of performance and scale of a large open world game. Cooperating with Epic to share ideas and find ways to take the technology forward. Creating a technology for a game that delivers memorable experiences to players. Working across all disciplines to ensure that the outcome of the work is meeting the needs of all stakeholders.

Creating tools and data pipelines to achieve our massive world with minimal performance impact. Demonstrating a strong ownership mindset by proactively maintaining clear communication and building close, ongoing relationships with power users of our systems. Significant Unreal Engine experience , specifically experience in one or more of the following areas: Streaming (ex. World Partition System, HLOD, cooking pipeline, FastGeo) Memory system (allocations, GC) Physics (ChaosPhysics) World building tools (SceneOutliner, LevelInstances) Extensive experience with C++.

Relevant game development experience, including experience working on a AAA title. Experience in developing for PC and consoles. Experience with multithreaded programming. Strong system architecture skills. Ability to debug and optimize code. A collaborative mindset, clear communication skills, and the ability to build trusted relationships across teams. Nice to have (Please note these skills are not required to apply to the role) Experience with custom game engines development.

Working Mode Office-First — Working primarily from the Warsaw for a minimum of 10 days per month. Remote-First — Possibility of remote work from within Europe for select candidates. Relocation Support Relocation package — flight ticket, company apartment for your first month, relocating your pet, shipping your belongings — it’s all covered. Relocation assistance — processing your legalization operations for you, assistance with finding residence, tax settlements — all you need to feel right at home is taken care of.

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Polish lessons for foreign employees — and for your spouse or partner, too. Health & Well-Being Life insurance — comprehensive pension and insurance plans to protect you and your loved ones. Annual budget for medical expenses (for those working outside Poland). Psychological and psychiatrist care — free mental health support and various well-being webinars. Paid Leave — from 20 to 26 days of holiday for every team member per year, and paid sick leave.

Gym Membership Reimbursement. Menstrual Leave — employees who menstruate can take one extra day off each month when experiencing period pain. RED Parents Network — support for working parents, including childcare benefits, and family-friendly events. Perks & Professional Growth Flexible working hours — start your workday anytime between 8 and 10 AM (CET). REDs have access to the cafeteria platform through which they can receive vouchers and codes to shops, cinemas, and public transport reimbursement.

Training, lectures and courses — internal workshops, external training for each employee, knowledge-sharing initiatives, online tutorials, and e-learning classes are all available. There’s always something to learn! Gifts for newborn rebels and regular chances to nab some cool swag! Social Activities & Life in the Office Dog-friendly office — bring your pooch with you and look after them while working! There’s always a furry friend or two to meet at the studio.

Social events — we host regular gatherings at the studio where we can all unwind, play games, and just have some fun together. Healthy selections — ​​our canteens offer a range of healthy meals. Truly international working environment — a chance to meet and work with a diverse selection of people from all around the world. Sustainability is an ongoing commitment for us, and our campus has electric car charging points, green zones, and much more.

Read all about it on our Beyond the Game Blog . A designated space for your bicycle, as well as bicycle repair equipment and showers available whenever you need them. An onsite, well-equipped gym with a climbing wall, daily Gym Assistant support, and yoga and boxing classes. No dress-code — we like to keep it casual. Estimated pay range for this position: 23 700 – 37 000 PLN gross monthly. Final offers are dependent on job-related factors like experience and qualifications.

If you've observed any irregularities (i.e. legal or ethical violations) in our recruitment process, please click here to report them anonymously. #LI-ONSITE #LI-HYBRID #LI-REMOTE To create revolutionary, story-driven RPGs which go straight to the hearts of gamers — this is our mission. Want to dive deeper into our company’s culture? Explore our social media and check out our YouTube channel and Beyond the Game Blog where we share behind-the-scenes insights and stories direct from our team members!

Source listing: smartrecruiters_cdprojektred

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