Mobile Application Developer Jobs in Kent, WA (NOW HIRING)

The AWS Event Technology Team (ETT) is at the forefront of delivering exceptional event experiences for our customers. We design, build, and support a cutting-edge platform that empowers marketers to create and manage thousands of virtual and in-person events annually, from large-scale conferences like re:Invent to smaller events.
Join our Event Technology Mobile App team as a Software Development Engineer and play a pivotal role in shaping the future of AI-driven event experiences. You will spearhead the development and enhancement of our world-class personalization and AWS Events Mobile App, ensuring a seamless and engaging experience for attendees worldwide. Collaborate closely with AWS global marketing stakeholders, providing innovative tools, governance, and operational support to drive AWS growth and elevate attendee experiences to new heights.
Key job responsibilities
As an SDE II, you will design, build, and operate a multi-agent conversational AI system powered by Amazon Bedrock that serves 500,000+ attendees across 45+ AWS events annually. You will own end-to-end feature delivery across the full stack - React Native mobile frontend, serverless backend services (Lambda, API Gateway, DynamoDB), and LLM orchestration layer - with direct accountability for performance, reliability, and quality at scale. Your work includes architecting real-time streaming protocols for sub-second response delivery, building data-driven feedback systems that measure and improve AI response accuracy across specialized agent domains, and developing intelligent push notification infrastructure with context-aware delivery. You will define and instrument operational metrics to drive continuous model and system improvements, contribute to system design reviews for high-traffic scenarios (re:Invent scale: 50K+ concurrent users), and partner with product, design, and applied science teams to evaluate new LLM capabilities and agent orchestration patterns. You will mentor junior engineers and interns, raise the engineering bar through code reviews and documentation, and own operational excellence - writing runbooks, designing for graceful degradation, and maintaining high availability during peak event periods.
BASIC QUALIFICATIONS
- 3+ years of non-internship professional software development experience
- 2+ years of non-internship design or architecture (design patterns, reliability and scaling) of new and existing systems experience
- 1+ years of software development engineer or related occupational experience
- Bachelor's degree or foreign equivalent in Computer Science, Engineering, Mathematics, or a related field
- Experience programming with at least one software programming language
PREFERRED QUALIFICATIONS
- 3+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience
- Experience with Android, iOS or other mobile application development or testing
- Experience with building multi agentic orchestration workflows with AI
Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.
Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit https://amazon.jobs/content/en/how-we-hire/accommodations for more information. If the country/region you're applying in isn't listed, please contact your Recruiting Partner.
The base salary range for this position is listed below. Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location. Amazon also offers comprehensive benefits including health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance and option for Supplemental life plans, EAP, Mental Health Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy Reimbursement coverage), 401(k) matching, paid time off, and parental leave. Learn more about our benefits at https://amazon.jobs/en/benefits.
USA, TX, Austin - 143,700.00 - 194,400.00 USD annually
USA, WA, Seattle - 143,700.00 - 194,400.00 USD annually