Principal Software Engineer - League of Legends , UI Tooling
Required skills
- C++
- C/C++
- video game industry
- game development UI
- shipped game
- requirements gathering
- planning
- coding standards
- source control management
- delivery performance
Nice to have
- player empathy
- craft expertise
- collaborative spirit
- decision-making
- player delight
Role summary
Riot Games is seeking a Principal Software Engineer for its UI Tooling team, focused on League of Legends. This role involves developing and maintaining UI frameworks and authoring tools, collaborating with technology owners, content creators, engineers, designers, and artists to enhance their workflows. The position requires deep expertise in C++ (8+ years), experience in the video game industry (5+ years), and a proven ability to lead large-scale development efforts. Familiarity with Qt, Python, custom game engines, and UX artist workflows is essential. The role emphasizes mentorship and adherence to software development best practices, contributing to a player-first mission.
Riot engineers bring deep knowledge of specific technical areas but also value the opportunity to work in many broader domains. As a Software Engineer, you'll work with both new and current technology, creating creative solutions to overcome high-volume obstacles and to bring player value.
As a Principal Software Engineer on the UI Tooling team, you will develop against the foundations of the UI frameworks and authoring tools used to build experiences for League of Legends. The scope of this position requires collaboration with technology owners and content teams across the organization to ensure we provide thoughtful tools and workflows that help engineers, designers, and artists create and iterate effectively. For this role, you’ll report to the organization’s Engineering Manager. You will also partner with other teams and disciplines to ensure that your work improves the quality of life and effectiveness of those partners. Our platform is written in C++ and makes heavy use of the Qt ecosystem for UI/UX, with Python supporting several utility and workflow needs. This role will be based out of our Los Angeles Headquarters.
Responsibilities:
Required Qualifications:
For this role, you'll find success through craft expertise, a collaborative spirit, and decision-making that prioritizes the delight of players. We will be looking at your past studies, experience, and your personal relationship with games. If you embody player empathy and care about the experiences of players, this could be the role for you!
Our Perks:
Riot focuses on work/life balance, shown by our open paid time off policy and other perks such as flexible work schedules. We offer medical, dental, and life insurance, parental leave for you, your spouse/domestic partner, and children, and a 401k with company match. Check out our benefits pages for more information.
At Riot Games, we put players first. That mission drives every decision in our quest to create games and experiences that make it better to be a player. Whether you’re working directly on a new player-facing experience or you’re supporting the company as a whole, everyone at Riot is part of our mission. And just like in our games, we’re better when we work together. Our goal is to create collaborative teams where you are empowered to bring your unique perspective everyday. If that sounds like the kind of place you want to work, we’re looking forward to your application.
It’s our policy to provide equal employment opportunity for all applicants and members of Riot Games, Inc. Riot Games makes reasonable accommodations for handicapped and disabled Rioters and does not unlawfully discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity or expression, national origin, age, handicap, veteran status, marital status, criminal history, or any other category protected by applicable federal and state law. We consider for employment all qualified applicants, including those with criminal histories, in a manner consistent with applicable federal, state and local law, including the California Fair Chance Act, the City of Los Angeles Fair Chance Initiative for Hiring Ordinance, the Los Angeles County Fair Chance Ordinance for Employers, the San Francisco Fair Chance Ordinance, and the Washington Fair Chance Act.
Per the Los Angeles County Fair Chance Ordinance, the following core duties may create a basis for disqualifying candidates with relevant criminal histories:
These duties are directly related to essential operations, safety, trust, and compliance obligations within our organization. Please note that job duties may evolve based on business needs and additional responsibilities may be assigned as necessary to maintain operational efficiency and security.
Sample Riot Games interview questions
- 1
Create a real-time data feed for stock prices.
system designmedium - 2
Buildings with an Ocean View Find all buildings that have an ocean view. Input: heights = [1,2,3,4] Output: [3] Explanation: Since the ocean is to the right, only the rightmost tallest building (index 3) is not blocked by any others.
codingmedium - 3
Find the majority element in an array. Given an array of size n, find the majority element. The majority element is the element that appears more than ⌊n / 2⌋ times. You may assume that the majority element always exists in the array. Input: nums = [3, 2, 3] Output: 3 Explanation: The number 3 appears 2 times, which is strictly greater than n/2 (1.5).
codingmedium - 4
Dot Product of Two Sparse Vectors Calculate the dot product of two sparse vectors. Input: nums1 = [0,1,0,0,2], nums2 = [0,0,0,0,5] Output: 10 Explanation: Multiplies the aligned non-zero values (2 * 5) and ignores all the zeros, yielding a dot product of 10.
codingmedium - 5
Maximum Subarray Sum Find the maximum subarray sum in an integer array. Input: nums = [-3,-4,-1,-2] Output: -1 Explanation: Kadane's algorithm correctly identifies that the single isolated element -1 provides the highest possible sum.
codingmedium
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