Software Development Engineer, AWS Network Firewall Proxy

Amazon • Seattle, WA

1d

About The Position

AWS Infrastructure Services owns the design, planning, delivery, and operation
of all AWS global infrastructure. In other words, we’re the people who keep the
cloud running. We support all AWS data centers and all of the servers, storage,
networking, power, and cooling equipment that ensure our customers have
continual access to the innovation they rely on. We work on the most challenging
problems, with thousands of variables impacting the supply chain — and we’re
looking for talented people who want to help.

You’ll join a diverse team of software, hardware, and network engineers, supply
chain specialists, security experts, operations managers, and other vital roles.
You’ll collaborate with people across AWS to help us deliver the highest
standards for safety and security while providing seemingly infinite capacity at
the lowest possible cost for our customers. And you’ll experience an inclusive
culture that welcomes bold ideas and empowers you to own them to completion.

AWS Network Firewall Proxy team is looking for a Software Development Engineer
for a critical part of its service that will deliver a Proxy solution, a service
that offers centralized security controls to avert data leak threats. This teams
owns the external facing NFW Proxy
(https://aws.amazon.com/about-aws/whats-new/2025/11/aws-network-firewall-proxy-preview/).
This is a balanced team of senior and junior engineers that has proven it can
deliver very important features for our customers.

This engineer will work on a key part of the service, setting the team culture,
best practices, mentoring, and delivering on the product roadmap. The successful
candidate will be comfortable dealing with ambiguity, be very customer-centric
and able to think big!

The ideal candidate will be passionate about the potential of cloud computing as
well as about building great resilient, scalable and high-performance
distributed services. This candidate has thrived and succeeded in delivering
high quality technology products/services in a rapid growth environment
exhibiting abilities to prioritize well, communicate clearly and understand how
to drive a high level of focus and excellence with a strong team. This person
has a proven track record of building a culture centered on customer focus,
efficient execution, high quality, rigorous testing, deep monitoring, and solid
deployment practices. AWS in general, and this business in particular, operates
at very large scale and on critical workloads, so a passion and discipline
around operational excellence is key. A high level of ownership and
accountability is a must.

This is a rare opportunity for an experienced Amazonian to join a team that is
in a critical and visible area. The team owns external facing NFW Proxy
(https://aws.amazon.com/about-aws/whats-new/2025/11/aws-network-firewall-proxy-preview/).

The proxy will allow customers to have visibility into, and exert control over
all internet-bound activities. It will decrypt traffic to offer thorough
visibility, along with authentication and destination filtering capabilities to
ensure that you don’t have unauthenticated or compromised workloads in your
environment trying to leak data to untrusted destinations.

With a balanced team of junior and senior engineers and a healthy operational
load, this team needs your help to balance the challenges of growing the team,
providing operational and technical guidance and mentoring, and delivering
amazing features. It's a fun team with an exciting future -- come work hard,
play hard, and change the world!

The AWS Network Firewall Proxy team builds and operates the core proxy
infrastructure that protects customer workloads from network threats. The team
designs high-performance distributed systems that inspect billions of packets
daily across AWS regions, delivering sub-millisecond latency while maintaining
security. Engineers on this team solve complex challenges in packet processing,
threat detection, and scalability. The proxy service processes customer traffic
in real-time, blocking malicious activity before it reaches applications. This
team's work directly impacts AWS customers' security posture, enabling them to
run workloads safely in the cloud. The team collaborates closely with security
researchers, network engineers, and service teams across AWS.

Requirements

• 3+ years of professional software development experience
• Strong programming skills in Java, C++, or Rust
• Experience building distributed systems or network services
• Understanding of networking protocols (TCP/IP, TLS, HTTP)
• Bachelor's degree in Computer Science or equivalent experience
• 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
• 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 high-performance proxy services that process customer traffic at scale
• Build distributed systems that deliver sub-millisecond latency while maintaining security
• Optimize packet processing pipelines to handle increasing traffic volumes
• Collaborate with security teams to implement new threat detection capabilities
• Participate in on-call rotation to ensure service availability

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