Software Development Engineer - II, Elastic Load Balancing (ELB)

Amazon is hiring a Software Development Engineer - II, Elastic Load Balancing (ELB) in Seattle, United States. It pays $144k-$194k a year and Level rates it ; you can apply on Level.

AI in this role

Do you want to help lead the cloud revolution and build software that thrives at immense scale?
AWS Elastic Load Balancing enables customers to build large scale highly available services. ELB automatically distributes incoming application traffic across multiple targets, such as Amazon EC2 instances, containers, IP addresses, and Lambda functions. ELB provides the entry point for building hyper scale, fault tolerant applications. While ELB has seen tremendous growth since launch we are still in the early stages of realizing our full potential.

Why you should join the Amazon ELB team?
We are building and launching new services and features on a regular basis. Application load balancer(ALB), Network load balancer(NLB), Gateway Load Balancer (GWLB) and Privatelink are a few examples.

We ship software frequently, get fast feedback from real customers around the globe and see the results of our work come to fruition. The Amazon ELB service is deployed globally to over 30 regions today and is growing at an extremely rapid rate.

There are real-world problems to solve that you won't find ready-made answers for. For example, how do you ensure customers can scale their application quickly to handle traffic spikes and then back down in a matter of minutes? How do you design a load balancing solution that allows customers to quickly and easily achieve the highest levels of fault tolerance using Amazon EC2?

We are now designing and building the next generation of ELB services capable of handling terabytes of data per day and growing from there. This is a unique opportunity to help build large-scale systems from the ground up.
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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.

Key job responsibilities
• Design, develop, and maintain scalable distributed systems that power AWS Elastic Load Balancing services, handling millions of requests per second for customers worldwide
• Write high-quality, maintainable code in Java, C++, or similar languages while participating in code reviews and technical design discussions
• Collaborate with cross-functional teams including product managers, senior engineers, and operations to deliver new features and improvements that enhance load balancing performance, reliability, and security
• Troubleshoot complex production issues, conduct root cause analysis, and implement solutions that prevent recurrence
• Own end-to-end delivery of medium to large-sized projects, from design through deployment and monitoring
• Contribute to architectural decisions and technical strategy for the team
• Mentor junior engineers through code reviews, pair programming, and knowledge sharing
• Monitor system health metrics, participate in on-call rotations, and respond to operational issues to maintain high availability standards
• Drive continuous improvement in development processes, testing practices, and operational excellence
• Stay current with industry trends and AWS technologies to bring innovative solutions to customer problems

About the team
The Elastic Load Balancer (ELB) Workflow team builds the systems that are the brains behind the Control Plane. We manage the massive fleet of instances for all AWS regions ensuring proper execution of the lifecycle of the Load Balancer (LB) nodes. We support Application Load Balancers (ALB) and Classic Load Balancers (CLB). The team owns several systems such as the Workflow Manager and ELB Controller as well as all of the supporting tools and pipelines to ensure the fleet is healthy.

Basic qualifications

- 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

Preferred qualifications

- 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

Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.

Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit https://amazon.jobs/content/en/how-we-hire/accommodations for more information. If the country/region you’re applying in isn’t listed, please contact your Recruiting Partner.

The base salary range for this position is listed below. Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location. Amazon also offers comprehensive benefits including 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, and parental leave. Learn more about our benefits at https://amazon.jobs/en/benefits.

USA, WA, Seattle - 143,700.00 - 194,400.00 USD annually

How we rate this

Software Development Engineer - II, Elastic Load Balancing (ELB) at Amazon rates 33 out of 100 for how much of the daily work is AI. That makes it Little AI (AI Level 1 of 4). The level is about AI in the job, not seniority.

Classification

Little AI. AI is not part of the work.

●●●● Builds AI80 to 100
●●●○ Works on AI60 to 79
●●○○ Uses AI40 to 59
●○○○ Little AI0 to 39

Levels come from how often the tools, models and workflows of the role are named in the posting itself. Open the description and count.

Key facts

Software Development Engineer - II, Elastic Load Balancing (ELB) is an open job at Amazon.
Level rates this role AI Level 1 of 4: Little AI.
The listed salary is $144k-$194k a year.
The role is based in US, WA, Seattle.
The job was posted on October 9, 2026.
Seniority: mid.
Applications are handled by Amazon. Apply on Amazon