Senior Software Engineer, Core Exchange at Liftoff

Liftoff is a leading AI-powered performance marketing platform for the mobile app economy. Our end-to-end technology stack helps app marketers acquire and retain high-value users, while enabling publishers to maximize revenue across programmatic and direct demand. Liftoff’s solutions, including Accelerate, Direct, Monetize, Intelligence, and Vungle Exchange, support over 6,600 mobile businesses across 74 countries in sectors such as gaming, social, finance, ecommerce, and entertainment. Founded in 2012 and headquartered in Redwood City, CA, Liftoff has a diverse, global presence. At Liftoff, the Supply Platform team is essential to the success of our Publisher side business. Our team is dedicated to designing and building platform infrastructure that processes over a billion events daily, and we are rapidly expanding. We are a group of innovative engineers leveraging the latest technology to develop efficient and scalable systems. If you're passionate about building and scaling low-latency, high-throughput systems, we would love to speak with you! Responsibilities • Take ownership and work with various product management, development and quality assurance groups in a fast-paced environment • Design, engineer & implement highly-available, fault-tolerant, distributed systems enhancing our real-time bidding system • Focusing on code readability, performance, testing, documentation, continuous integration • Become familiar with core development, product release and its business • Implementing new features and streamlining existing services • Follow the KISS principle and contribute to improving our coding standards. • Share knowledge and best practices with team members. • PagerDuty on-call rotation Qualifications • BS in Computer Science with 5+ years professional experience; or MS in Computer Science with 3+ years of professional experience; or equivalent work experience • Proficient in at least one of the following languages: Golang (preferable), C/C++, Java, Python • Experience building low-latency, high-throughput, distributed backend services • Deep understanding of computer architectures, data structures, and algorithms • Knowledge of profiling and debugging distributed microservices • Experience building data-intensive applications. • Experience with distributed system observability metrics, using it for data driven design decisions • Have good team communication and collaboration skills. • Passionate about helping others and invested in the team’s success • Good at English (oral, writing, reading) Preferred Experience • Previous experience in ad-tech • Proficient in Golang • Redis, RocksDB, Mongo, Kafka • gRPC, RestAPI, GraphQL • Docker, Kubernetes, AWS, Github, CI/CD • ML, Tensorflow Location: This role is hybrid. During the initial 3 months of onboarding we ask you work a minimum of 3 days/week from our Beijing office (Guomao). After onboarding, we prefer working a minimum of Wednesdays in office. Travel Expectations: We offer several opportunities for in-person team gatherings, including but not limited to project meetings, regional meetups, and company-wide events. We expect our employees to attend these gatherings at least once per quarter. These gatherings provide essential opportunities for collaboration, communication, and team building. Compensation: Liftoff offers all employees a full compensation package that includes equity and health/vision/dental benefits associated with your country of residence. Base compensation will vary based on the candidate's location and experience. The following are our base salary ranges for this role: 500,000 - 625,000 RMB annually #LI-JH1 We use Covey as part of our hiring and / or promotional process for jobs in NYC and certain features may qualify it as an AEDT. As part of the evaluation process we provide Covey with job requirements and candidate submitted applications. We began using Covey Scout for Inbound on January 22, 2024. Please see the independent bias audit report covering our use of Covey here. Liftoff offers a fast-paced, collaborative, and innovative work environment where employees are empowered to grow and make an impact. We’re shaping the future of the mobile app ecosystem—join us and help accelerate what’s next. Liftoff’s compensation strategy includes competitive salaries, equity, and benefits designed to support employee well-being and performance. We benchmark compensation based on role, level, and location to ensure fairness and market alignment. Benefits may include medical coverage, wellness stipends, and additional perks based on your country of residence. Liftoff is an equal opportunity employer. We are committed to creating an inclusive environment for all employees and applicants regardless of race, ethnicity, national origin, age, marital status, disability, sexual orientation, gender identity, religion, veteran status, or any other characteristic protected by applicable law. Agency and Third Party Recruiter Notice: Liftoff does not accept unsolicited resumes from individual recruiters or third-party recruiting agencies in response to job postings. No fee will be paid to third parties who submit unsolicited candidates directly to our hiring managers or Recruiting Team. All candidates must be submitted via our Applicant Tracking System by approved Liftoff vendors who have been expressly requested to make a submission by our Recruiting Team for a specific job opening. No placement fees will be paid to any firm unless such a request has been made by the Liftoff Recruiting Team and such a candidate was submitted to the Liftoff Recruiting Team via our Applicant Tracking System.