Software Dev Engineer II, AWS End User Messaging

Amazon • Seattle, WA

11d

About The Position

As part of the AWS Applied AI Solutions organization, we have a vision to
provide business applications, leveraging Amazon's unique experience and
expertise, that are used by millions of companies worldwide to manage day-to-day
operations. We will accomplish this by accelerating our customers' businesses
through delivery of intuitive and differentiated technology solutions that solve
enduring business challenges. We blend vision with curiosity and Amazon's
real-world experience to build opinionated, turnkey solutions. Where customers
prefer to buy over build, we become their trusted partner with solutions that
are no-brainers to buy and easy to use.

Are you passionate about building large-scale messaging infrastructure that
powers critical customer communications? Join the AWS End User Messaging to
build intelligent routing systems and templated messaging solutions that enable
enterprises to reach their users reliably and efficiently. We are ramping up the
team to deliver innovative features that provide customers with immediate access
to pre-approved messaging templates and AWS-managed identities for transactional
messaging.

The AWS End User Messaging team is recruiting a Software Development Engineer I
who will contribute to building and scaling messaging routing infrastructure
including SMS, Voice, and RCS channels. You will work on projects such as:

- Routing Services: Building templated messaging APIs with intelligent routing
between customer-owned and AWS-managed phone numbers
- Fraud Protection Systems: Implementing systems to detect and prevent
fraudulent traffic, protecting customers from unexpected costs while maintaining
legitimate message delivery
- Cross-Region Routing: Developing distributed systems that optimize message
delivery across global phone number pools
- Automated Failover Mechanisms: Creating intelligent routing systems that
automatically detect delivery issues and reroute traffic to ensure high message
delivery rates

You will collaborate with experienced engineers, product managers, and other
technology leaders at Amazon to translate customer needs into scalable features.
This is an excellent opportunity to work on distributed systems at massive scale
while learning from a team that operates across multiple AWS regions.

Why Join AWS End User Messaging?
- Immediate Customer Impact: Your work will power critical customer
communications daily
- Modern Development Practices: Work with AI-assisted development tools,
comprehensive testing infrastructure, and rapid deployment cycles
- Learning Opportunities: Gain expertise in distributed systems, telephony
infrastructure, carrier relationships, fraud detection, and AWS service
development
- Innovative Projects: Contribute to state of the art features like
cross-channel messaging, intelligent routing, fraud protection systems, and
automated failover mechanisms
- Strong Team Culture: Join a team that values test-driven development,
operational excellence, and continuous learning

Requirements

• 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 or eagerness to learn distributed systems and cloud services
• Passion for building customer-facing features and solving complex technical challenges
• Strong communication skills and ability to collaborate effectively with cross-functional teams
• Ownership mindset and willingness to learn from experienced engineers
• 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
• 1+ years of designing and developing large-scale, multi-tiered, multi-threaded, embedded or distributed software applications, tools, systems, and services using: C#, C++, Java, or Perl experience
• 1+ years of Object Oriented Design 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

Nice To Haves

• 3+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience
• Bachelor's degree in computer science or equivalent

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

Benefits

• 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
• parental leave

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level