Senior Unity Developer

4 Weeks ago • 4 Years + • Game Design

Job Summary

Job Description

Sunday seeks a Senior Unity Developer to contribute to the development of successful mobile games. Responsibilities include improving game KPIs and content, building gameplay mechanics and meta game layers, handling technical implementations (tracking, advertising SDKs), mentoring junior developers, collaborating with cross-functional teams, solving complex technical challenges, and improving workflows. The ideal candidate has at least 4 years of Unity experience in hyper-casual/casual game development, a passion for mobile gaming, and strong teamwork skills.
Must have:
  • 4+ years Unity experience in hyper-casual/casual games
  • Proficient in adding new features to existing codebases
  • Passion for mobile games and new mechanics
  • Efficient use of Unity tools
  • Good sense of color, composition, and "developer art"
  • Strong teamwork and collaboration skills
Good to have:
  • Degree in Software Engineering
  • Shipped mobile game (1M+ installs)
  • LiveOps experience
  • Agile experience (Jira, Confluence)
  • Shader programming, Unity's ECS/DOTS
  • Backend/cloud services experience
  • Understanding of hypercasual player behavior
Perks:
  • 2 remote days/week
  • 30 vacation days
  • 3 weeks/year remote work
  • Flexible hours
  • Dog-friendly office
  • Relocation package
  • German classes reimbursement
  • Monthly company lunch
  • Free snacks & drinks
  • Free breakfast & pastries
  • In-house gym & personal trainer
  • Yoga classes
  • EAP
  • Team & company events
  • Hackathons
  • Professional development opportunities
  • Virtual stock options

Job Details

We are looking for a skilled and passionate Senior Gameplay Developer who will support us in building hit games.

At Sunday, we fuel hybrid-casual games by developing and marketing fun, easy-to-play mobile games that consistently top the charts and generate hundreds of millions of downloads globally.

Our talented team of developers, artists, designers, and marketers work together to build games that are easy to jump into but hard to put down, striking the perfect balance between enjoyment and monetization.

As proud members of the applike group, our primary focus is on leveraging their cutting-edge advertising technology to deliver smart, player-friendly monetization and contribute to a thriving mobile ecosystem. Supported by Bertelsmann, Europe's largest media company, we are equipped with the resources to push the boundaries of the mobile gaming space.

Join us as we continue to shape the future of hybrid-casual gaming.

What you will do:

  • You will play a key role in improving KPIs and content of our games portfolio
  • You will be working in a small team of professionals to build the active gameplay mechanics and the meta game layer for our top priority projects
  • You will handle technical implementations like tracking and advertising SDKs
  • Mentor junior developers, sharing best practices and fostering a culture of technical excellence
  • Collaborate with designers, artists, and QA to bring creative ideas to life and ensure project goals are met
  • Solve complex technical challenges and identify opportunities to improve workflows and tools

Who you are:

  • You have at least 4 years experience in developing successful hyper-casual/ casual games with Unity
  • You are willing to work with existing code base and can easily add new features on top
  • You have a deep passion for mobile games and love tinkering around with new mechanics
  • You are able to use the built-in Unity tools to be as time-efficient as possible
  • You have a good feeling for color, composition, and “developer art”
  • You first get the game’s core loop right and then flesh out the details
  • You love working together with smart, passionate and driven people, that hold themselves and others to high standards and want to grow constantly
  • You like to celebrate your successes together with your team and also support them in difficult times
  • Nice to have a degree in Software Engineering or similar field but not mandatory

Big Plus:

  • Having a shipped (over 1m install) mobile game with Unity3D
  • Understanding of liveops concept and worked in a liveops team
  • Experience of working with Agile processes, familiarity with Jira and Confluence
  • Experience with shader programming, Unity’s ECS, or DOTS
  • Familiarity with backend systems or cloud services
  • Passion for hypercasual games and understanding of player behavior in the genre

Please provide us with an overview of your most recent projects (e.g. Playstore links to the games you helped create)!

Why you will love working here:

  • Work-Life Package: 2 remote days per week, 30 vacation days, 3 weeks per year of remote work, flexible working hours, dog-friendly kick-ass office in the center of the city.
  • Relocation Package: Visa & legal support, relocation bonus, reimbursement of German Classes costs, and more.
  • Happy Belly Package: Monthly company lunch, tons of free snacks and drinks, free breakfast & fresh delicious pastries every Monday
  • Physical & Mental Health Package: In-house gym with a personal trainer, various classes like Yoga with expert teachers & free of charge access to our EAP (Employee Assistance Program) to support your mental health and well being
  • Activity Package: Regular team and company events, and hackathons.
  • Education Package: Opportunities to boost your professional development with courses and training directly connected to your career goals
  • Wealth building: virtual stock options for all our regular employees

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About The Company

We create and publish extremely engaging and addictive mobile games with smart and player-friendly monetisation. We are on the way to becoming one of the leading mobile publishers and developers. We are generously backed by an investment from Bertelsmann, one of the world's largest media houses. We love building engaging games and apps. If you think you have the right combination of smart and ambitious and want to join us: We’re hiring!

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