Sr. Software Development Engineer, Kiro

About the role

The future of software development is agentic. AWS is building Kiro — a frontier AI coding agent that tackles development tasks end-to-end, retains context across complex workflows, and continuously learns from its work. Kiro is already transforming how developers build and maintain software, and we're just getting started. We're looking for engineers who want to shape this transformation. You'll work alongside exceptional talent solving novel problems at the intersection of AI and software engineering. The challenges are unique: orchestrating AI workflows across dozens of models, building context  systems that make every interaction smarter than the last, and scaling it all to meet AWS's exacting standards for reliability and security. Your impact will be immediate and visible. You'll ship features that directly improve how developers work — from launching new models in hours, to building intelligent routing, to designing the context layer that makes Kiro genuinely understand your project. These aren't incremental improvements; they're the building blocks of a new category of developer tool. From day one, you'll have opportunities to lead — whether that's owning a critical system, defining technical direction for a new capability, or shaping how the team operates. You'll work across distributed systems, real-time streaming, multi-model orchestration, and AI infrastructure at scale. The team is small enough that your decisions matter and large enough that you'll always have someone to learn from. This is your chance to build the agent that builds the future. About the team Diverse Experiences AWS values diverse experiences. Even if you do not meet all of the preferred qualifications and skills listed in the job description, we encourage candidates to apply. If your career is just starting, hasn’t followed a traditional path, or includes alternative experiences, don’t let it stop you from applying. Why AWS? Amazon Web Services (AWS) is the world’s most comprehensive and broadly adopted cloud platform. We pioneered cloud computing and never stopped innovating — that’s why customers from the most successful startups to Global 500 companies trust our robust suite of products and services to power their businesses. Inclusive Team Culture AWS values curiosity and connection. Our employee-led and company-sponsored affinity groups promote inclusion and empower our people to take pride in what makes us unique. Our inclusion events foster stronger, more collaborative teams. Our continual innovation is fueled by the bold ideas, fresh perspectives, and passionate voices our teams bring to everything we do. Mentorship & Career Growth We’re continuously raising our performance bar as we strive to become Earth’s Best Employer. That’s why you’ll find endless knowledge-sharing, mentorship and other career-advancing resources here to help you develop into a better-rounded professional. Work/Life Balance We value work-life harmony. Achieving success at work should never come at the expense of sacrifices at home, which is why we strive for flexibility as part of our working culture. When we feel supported in the workplace and at home, there’s nothing we can’t achieve.
- 5+ years of non-internship professional software development experience - 5+ years of programming with at least one software programming language experience - 5+ years of leading design or architecture (design patterns, reliability and scaling) of new and existing systems experience - Experience as a mentor, tech lead or leading an engineering team