SDE II: End-User Messaging & Intelligent Routing

Amazon Web Services (AWS); Seattle (WA); On-site; USD 144,000 - 194,000; Full time

Job summary

Amazon Web Services, Inc. in Seattle, WA, is seeking a Software Development Engineer II to help build and scale the AWS End User Messaging infrastructure, delivering reliable SMS, Voice, and RCS channels at massive scale.

You will design scalable services, own features end-to-end, collaborate across teams, and mentor junior engineers while shaping telephony routing, fraud protection, and global delivery. This role offers opportunities to learn distributed systems and cloud services while

Qualifications

• Bachelor's degree in Computer Science, Engineering, or related field (or equivalent practical experience).
• Strong foundation in object-oriented programming, data structures, and algorithms.
• Experience with distributed systems and cloud services.
• Excellent collaboration and communication across teams.

Responsibilities

• Design and implement scalable services: Build new microservices and APIs for templated messaging, routing logic, and fraud protection using modern development practices and AWS services
• Own end-to-end features: Take ownership of features from design through deployment, including writing comprehensive tests, creating operational dashboards, and participating in on-call rotations
• Collaborate on technical design: Participate in design reviews, contribute to architecture decisions, and learn best practices for building fault-tolerant, highly available messaging systems
• Optimize message delivery: Work on intelligent routing algorithms that select optimal origination identities based on destination country, carrier relationships, and delivery performance metrics
• Build fraud protection systems: Develop and enhance capabilities that analyze traffic patterns, detect suspicious activity, and automatically block fraudulent messages while minimizing false positives
• Ensure quality and reliability: Write comprehensive tests, participate in code reviews, and contribute to the team's commitment to quality and operational excellence
• Learn and grow: Develop expertise in telephony ecosystems, carrier integrations, compliance requirements, fraud detection systems, and AWS service development practices
• Mentor and grow junior engineers on the team

Skills

C#

C++

Java

Perl

OO Design

Distributed Systems

Cloud Services

Communication

Ownership Mindset

Education

Bachelor's degree in Computer Science, Engineering, or related field

Bachelor's degree in computer science or equivalent

Job description

Amazon Web Services, Inc. in Seattle, WA, is seeking a Software Development Engineer II to help build and scale the AWS End User Messaging infrastructure, delivering reliable SMS, Voice, and RCS channels at massive scale.

You will design scalable services, own features end-to-end, collaborate across teams, and mentor junior engineers while shaping telephony routing, fraud protection, and global delivery. This role offers opportunities to learn distributed systems and cloud services while