CareerPlan

Software Development Engineer, AWS Cognito, AWS Cognito

Seattle, Washington, United StatesFull-time$144k–$194k2026-10-14 → 2026-10-24

Core

Design, build, and operate highly available, low-latency authentication services for AWS Identity, enabling human and non-human identities to sign in with scoped authority.

Role type

Senior Software Development Engineer (AWS Cognito)

Builds

Authentication services (sign-in, tokens, devices) for AWS customers

Domain

Cloud Infrastructure / Identity & Access Management

Deliverable

production ML models | product features

Required skills

Distributed systems design, C#/C++/Java/Perl, AI-native development, operational excellence, root cause analysis, mentoring

Preferred skills

Full SDLC ownership, system architecture design, AI agent integration for security review

Technologies

AWS Cognito, C#, C++, Java, Perl, AI agents

Responsibilities

Design and implement end-to-end features for Cognito User Auth, improve operational metrics (availability, latency, security), build agentic tooling for code review and operations, solve ambiguous production problems, mentor engineers