Client Description US-based mobile operating system vendor Job Description Part of the Data & Monetization engineering team you’ll be involved in building and maintaining everything from online BI platforms, a scalable real-time data pipe, multiple mission critical and highly scalable APIs, and our AdTech infrastructure, from prototyping to deployment. Design and build APIs, scalable backends and high-performance architectures to serve hundreds of millions of users and billions of requests per day Backend engineer for Hong Kong-based advertising technology team to work as part of an agile team alongside other software, data and DevOps engineers. The team is in charge of our ads SDK, several advertiser- and app publisher-facing web applications, a scalable microservices-based real-time backend and underlying AWS infrastructure. Seasoned backend engineer capable of developing complex systems incrementally, relying on TDD, test and deployment automation every step of the way. You take pride in delivering systems that are testable and observable by design, can be evolved in confidence and are stable and performant in practice. Job Requirements Engineering background and academic qualifications Solid grasp of Golang, but experience with Rust, Scala, Java, Erlang, C++, and Nodejs is also meritorious. You may also end up working with Python, and as a part of the Data & Monetization team it’s good if you’re also comfortable with databases, SQL and data visualisation. Deep knowledge and fluency in Golang, Python or Scala; shell scripting Extensive experience with test automation, CI / CD Experience with load testing and performance optimization Extensive experience with modern version control systems, such as Git Strong operating systems concepts, Linux and networking Extensive experience with AWS, including services such as EC2, ECS, S3, Kinesis, RDS, DynamoDB, Athena, CloudWatch, IAM, Route 53, etc. Infrastructure tooling and automation is a plus. Extensive experience designing and developing REST APIs Experience with a variety of databases, including modern non-relational data technology Experience working in cross-functional delivery-focused agile teams Extensive experience with iterative development Experience in data-centric environments is a plus Outstanding analytical thinking, problem solving skills and attention to detail Excellent verbal and written communication skills