Senior Unity Developer (all genders)
About this role
We are looking for a Senior Unity Game Developer to join the Games Team and take ownership of feature implementation and long-term maintenance across our game portfolio. In this role, you will help expand core gameplay features, improve scalability of shared systems, reduce development bottlenecks, and support multiple live titles with impactful technical solutions.
Job Responsibilities
Own Unity feature development end‑to‑end, from technical design through rollout and long‑term maintenance.
Lead the scaling of core features across multiple titles, ensuring consistent quality and reusable implementation patterns.
Identify, structure, and execute improvements within existing codebases while avoiding unnecessary rewrites.
Collaborate closely with the Games teams members to clarify requirements and manage delivery risks.
Organize and optimize Unity code quality, performance, debugging, tooling, and maintainability across projects.
You communicate fluently in English, both written and spoken.
Job Requirements
You have 5+ years of hands on Unity and C# development experience.
Ability to design maintainable, scalable Unity/C# systems using OOP, SOLID principles, composition, dependency management, and appropriate design patterns.
Proven track record delivering shipped mobile titles, preferably in live production environments.
Deep understanding of mobile performance, memory management, profiling, and platform‑specific constraints.
Strong communication skills for clearly reporting progress, blockers, risks, and trade‑offs to technical and non‑technical stakeholders.
Experience with Git‑based workflows and collaborative development practices (code reviews, documentation, CI/CD is a plus).
Job Benefits
Work-Life Balance and Flexibility: Flexible working hours and options for digital nomads, occasional office visitors, or regular office-goers
Mental Health Support: Free personal coaching through our partner nilo.health to support our team members to live fulfilled lives at home and at work
Training & Development: A competitive personal development budget of up to 2000€/year for training, conferences, workshops, etc.
Germany-Based Benefits: 25 vacation days, free Wellhub gold subscription, free monthly Deutschland-Ticket, and a monthly €50 tax-free internet contribution
State-of-the-Art Equipment: Doesn’t matter if you are a MacBook or Windows user; we will provide you with the technical gear you need to succeed
A Relocation Package: Includes visa support for those who need it
Engaging and Diverse Work Environment: Join a diverse team, with over 30 nationalities working from over 25 different locations
Munich Office Perks: Ergonomic setup, free lunch on a daily basis, and dog-friendly environment
Benefits may vary depending on location and contract type. Do not hesitate to ask us about more details on our benefits offer.
Company at a glance
Founded in Berlin in 2020, JustPlay operates a portfolio of free-to-play mobile casual games and a rewards-driven platform where people can play, earn, or choose to support good causes through matched donations.
By bringing together games, adtech, and rewards in one integrated ecosystem, JustPlay is built for long-term growth and global scale. Today, more than 25 million players use JustPlay, with over 500k daily active users across 25+ countries.
Our team is building at the intersection of gaming, adtech, and rewards to create mobile experiences that are engaging for players and scalable for the long term.
If you want to help shape what comes next, check out our open roles:
https://www.justplayengine.com/careers
Top Benefits
- Flexible Working Hours
- Digital Nomad Options
- Mental Health Support
- Personal Coaching
- Personal Development Budget
- 25 Vacation Days
- Wellhub Gold Subscription
- Deutschland-Ticket
- Internet Contribution
- State-of-the-Art Equipment
- Relocation Package
- Visa Support
- Free Lunch
- Dog-friendly Environment
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