Software Engineer II, Elastic File System (EFS)

Amazon EFS provides fully managed elastic file storage that scales from gigabytes to petabytes without provisioning or management overhead. Customers rely on it for everything from simple web serving to large-scale analytics and ML training pipelines.

Were looking for engineers who want to work on distributed storage systems that serve real workloads at significant scale. Youll tackle challenges in replication consistency and fault tolerance. Youll operate what you build.

Key job responsibilities
What youll work on:
- Distributed systems design: consensus protocols replication strategies failure handling
- Systems-level programming for storage engines and critical data paths
- Operating services at scale: performance tuning debugging production issues capacity planning
- Building tooling and automation that makes a small team effective at running large infrastructure

A day in the life
Tech environment: Java C/C Rust Go and internal AWS systems. Youll work across the stack from low-level optimization to service architecture. Were investing in AI-assisted development for systems engineering and youll help define how we use it from code generation to operational automation.

This role includes on-call responsibilities. We take operational excellence seriously: automated remediation thorough runbooks and a culture of fixing root causes rather than firefighting the same issues repeatedly.

EFS is built entirely in Boston. Were working on new capabilities that expand how customers use file storage with AWS. The team operates with a customer focus working backward from real problems to build storage infrastructure that customers depend on for their most critical workloads.

About the team
AWS values diverse experiences. Even if you do not meet all of the preferred qualifications and skills listed in the job description we encourage candidates to apply. If your career is just starting hasnt followed a traditional path or includes alternative experiences dont let it stop you from applying.

Why AWS Amazon Web Services (AWS) is the worlds most comprehensive and broadly adopted cloud platform. We pioneered cloud computing and never stopped innovating thats why customers from the most successful startups to Global 500 companies trust our robust suite of products and services to power their businesses.

Inclusive Team Culture Here at AWS its in our nature to learn and be curious. Our employee-led affinity groups foster a culture of inclusion that empower us to be proud of our differences. Ongoing events and learning experiences including our Conversations on Race and Ethnicity (CORE) and AmazeCon conferences inspire us to never stop embracing our uniqueness.

Mentorship & Career Growth Were continuously raising our performance bar as we strive to become Earths Best Employer. Thats why youll find endless knowledge-sharing mentorship and other career-advancing resources here to help you develop into a better-rounded professional.

Work/Life Balance We value work-life harmony. Achieving success at work should never come at the expense of sacrifices at home which is why we strive for flexibility as part of our working culture. When we feel supported in the workplace and at home theres nothing we cant achieve in the cloud.


- 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
- Bachelors degree or foreign equivalent in Computer Science Engineering Mathematics or a related field
- Experience programming with at least one software programming language

- 3 years of full software development life cycle including coding standards code reviews source control management build processes testing and operations experience
- Bachelors degree in computer science or equivalent
- Experience with server storage networking or large-scale distributed systems
- Experience with distributed systems at scale
- Familiarity with consensus protocols (Paxos Raft) or distributed consistency models

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 for more information. If the country/region youre applying in isnt 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 MA Boston - 143700.00 - 194400.00 USD annually