Senior Game Designer (Part-time)

About the Role
We’re looking for a senior game designer to join our in-house team part-time as a backup and support to our primary slot game designer. This is not a from-scratch concept role — you’ll be jumping into live projects mid-stream, picking up existing GDDs, mechanics, and balancing work, and covering when the lead designer needs extra bandwidth or is unavailable. Independence and the ability to get productive fast, with minimal ramp-up, matter more here than a specific genre background.

Responsibilities:

• Pick up and continue work on existing game projects — GDDs, mechanics, balancing — without needing extensive handoff.
• Review, refine, and contribute to game concepts and mechanics alongside the primary designer.
• Support and cross-check difficulty curves, pacing, and balancing on live projects.
• Contribute to and maintain GDDs — both authoring sections and reviewing/aligning with existing documentation.
• Advise on UI/UX flow for player interaction and feedback.
• Consult on graphics, animation, and sound direction (approve/advise, not produce).
• Support playtesting and metrics analysis; propose improvements based on data.
• Act as a substitute for the primary game designer during peak load, absence, or overflow — able to represent design decisions to stakeholders independently.

Requirements

• Minimum 5 years in game design, with shipped titles in any genre — strong, demonstrable track record.
• Demonstrated ability to work independently and pick up unfamiliar/ongoing projects quickly, with minimal onboarding.
• Strong proficiency in creating and interpreting GDDs, including picking up and extending someone else’s documentation.
• Solid grasp of gameplay balancing — difficulty curves, pacing, engagement mechanics.
• Upper-intermediate English or higher (written and spoken) — will represent design decisions in cross-functional discussions.
• Comfortable working part-time / async — strong self-management, doesn’t need close supervision to stay productive.
• Experience with data analysis and using metrics to drive design decisions.
• Excellent communication skills — able to align with the primary designer and other departments (art, dev, QA) without much oversight.

Nice to Have

• Experience in slots gameplay mechanics and balancing (RTP, volatility) — a strong plus, not required.
• Experience mentoring or reviewing other designers’ work.
• Experience specifically in a backup/support or “floating senior” capacity on a live product team.
• ⏳ Work Schedule: Part-time (4 hours per day) within our core business hours: 11:00 AM — 6:00 PM (EET / Kyiv time). You can choose a convenient 4-hour slot within this window upon agreement.