.Software Dev Engineer II, Ads Core Services (ACS)Job ID: 2788879 | Amazon Support Services Pty LtdAmazon is investing heavily in building a world-class advertising business and we are responsible for defining and delivering a collection of self-service performance advertising products that drive discovery and sales. Our products are strategically important to our Retail and Marketplace businesses driving long-term growth. We deliver billions of ad impressions and millions of clicks daily and are breaking fresh ground to create world-class products. We are highly motivated, collaborative, and fun-loving with an entrepreneurial spirit and bias for action. With a broad mandate to experiment and innovate, we are growing at an unprecedented rate with a seemingly endless range of new opportunities.Advertising Core Services (ACS) organization owns services supporting many functions across the advertising lifecycle like Accounts, Permissions, Campaign Management, Billing, Supply and Traffic Quality, Analytics, and Quality Assurance. Our top focus areas are to innovate on behalf of our customers, support partner business launches, and improve our engineering systems for feature velocity, availability, performance, and scale. This role will see you collaborate with a large number of teams across WW Advertising to drive key initiatives to improve the resilience of advertising systems.You'll become part of a highly motivated team of talented multi-functional builders (front and backend developers) who can collaborate with product managers, technical specialists, and principals across the company. You should be comfortable with a degree of ambiguity that's higher than most projects and relish the idea of solving problems that haven't been solved at scale before. You will encounter challenging, novel situations every day and given the size of this initiative, you'll have the opportunity to work with multiple technical teams at Amazon in different locations. We're looking for self-motivated engineers who are passionate about innovating on behalf of customers, can demonstrate a high degree of teamwork, and want to have fun while they make history and collaborate on beautiful products.A successful candidate will have strong technical skills, and a history of delivering high-quality code to solve complex business problems. Written and verbal communication in this role are critical: you will author narratives that will be consumed by Amazonians at all levels.Key Technical Challenges:Distributed and Scalable Architecture: The global Ads Availability team owns Tier 1 critical service infrastructure that forms the backbone of Ad serving. We have enabled this service infrastructure across multiple regions and Availability Zones.High Availability: This role will provide critical support to the Global Ads Availability team that owns a key Ads wide Availability framework. It is critical to ensure that this framework remains highly available