Senior Mobile Software Engineer, Video Performance

At TikTok, we create together and grow together. That's how we drive impact - for ourselves, our company, and the communities we serve.
Join us.

About the Team
TikTok's Intelligent Creation Audio/Video (IC-AV) team delivers the core video production technologies across mobile platforms, enabling hundreds of millions of TikTok creators to tell their stories, express their emotions, and convey their knowledge in the format of short-form videos.

We are looking for enthusiastic mobile developers at various levels of experience to work on TikTok's core technologies of video filming and editing. The technical stack covers various camera features, nonlinear editing on mobile devices, UGC creation workflow, and a lot more. In this role, you will optimize the performance of TikTok's next-generation video technologies, collaborate with external mobile SoC/device/service partners, and deliver the best user experience on a huge variety of mobile platforms for TikTok creators around the world.

Responsibilities
1. Develop new video features including but not limited to camera operation, video recording, and video editing to support business requirements from TikTok family of video products.
2. Profile and optimize video performance and video quality, and refine user experience in each and every possible video production workflow for TikTok family of video products.
3. Collaborate with industrial partners to turn the latest mobile audio/video processing capabilities into the best UGC creator experience in the industry.
4. Research on frontier topics that will initiate new cutting-edge performance/quality technologies, such as hardware accelerations, HDR colorspace alignment, advanced camera capabilities.
5. Participate in the IC-AV team's R&D roadmap planning and team building.

Qualifications

Minimum Qualifications
1. Strong written and verbal communication skills and experience working with international teams across different time zones and cultures.
2. Solid coding skills with C/C++/Java/Objective-C or strong capabilities learning new programming languages.
3. Experience with iOS/Android software development. Familiar with multi-threading concurrency, common data structures, and common software design patterns.
4. Open minded, great communication, eager to learn, and always passionate about turning cutting-edge technologies into actual use cases.

Preferred Qualifications
1. Bachelor or above degree in Computer Science or related majors with 3 years of software-development experience.
2. Experience with camera quality tuning & video data processing, including but not limited to camera 3A, stabilization, color space conversion, up/down sampling, video encoding and video decoding.
3. Experience with modern graphics API, such as OpenGL, Metal, Vulkan. Knowledge of rendering pipeline, shader, frame buffer objects.
4. Experience with performance monitoring, profiling and optimization for mobile apps, including but not limited to optimization of CPU/GPU/memory usage and power consumption.
5. Experience with one or more media frameworks a big plus: ffmpeg, AVFoundation, VideoToolBox.
6. Experience with one or more video codecs a big plus: H.264, H.265, etc.

TikTok is committed to creating an inclusive space where employees are valued for their skills, experiences, and unique perspectives. Our platform connects people from across the globe and so does our workplace. At TikTok, our mission is to inspire creativity and bring joy. To achieve that goal, we are committed to celebrating our diverse voices and to creating an environment that reflects the many communities we reach. We are passionate about this and hope you are too.

TikTok is committed to providing reasonable accommodations in our recruitment processes for candidates with disabilities, pregnancy, sincerely held religious beliefs or other reasons protected by applicable laws. If you need assistance or a reasonable accommodation, please reach out to us at https://shorturl.at/cdpT2

Job Information

[For Pay Transparency] Compensation Description (annually)

The base salary range for this position in the selected city is $194000 - $355000 annually.

Compensation may vary outside of this range depending on a number of factors, including a candidate's qualifications, skills, competencies and experience, and location. Base pay is one part of the Total Package that is provided to compensate and recognize employees for their work, and this role may be eligible for additional discretionary bonuses/incentives, and restricted stock units.

Our company benefits are designed to convey company culture and values, to create an efficient and inspiring work environment, and to support our employees to give their best in both work and life. We offer the following benefits to eligible employees:

We cover 100% premium coverage for employee medical insurance, approximately 75% premium coverage for dependents and offer a Health Savings Account(HSA) with a company match. As well as Dental, Vision, Short/Long term Disability, Basic Life, Voluntary Life and AD&D insurance plans. In addition to Flexible Spending Account(FSA) Options like Health Care, Limited Purpose and Dependent Care.

Our time off and leave plans are: 10 paid holidays per year plus 17 days of Paid Personal Time Off (PPTO) (prorated upon hire and increased by tenure) and 10 paid sick days per year as well as 12 weeks of paid Parental leave and 8 weeks of paid Supplemental Disability.

We also provide generous benefits like mental and emotional health benefits through our EAP and Lyra. A 401K company match, gym and cellphone service reimbursements. The Company reserves the right to modify or change these benefits programs at any time, with or without notice.