Jobs in the United States

25+ jobs

Save this search

Added 4 mins ago
Substation Design Engineer
Entergy
New Orleans, LA
This position will be filled by an Engineer I, II, III or Sr., based on the experience and qualifications of the selected candidate.
Added 13 mins ago
Construction Manager II (Traveling, Industrial Construction)
Dennis Group
Trenton, NJ
Construction Managers are Dennis Group’s project site supervisors that oversee the daily operations of the construction activities including coordination of sub-contractors, site safety…
Added 13 mins ago
Project Manager II (Industrial Construction)
Dennis Group
Salt Lake City, UT
Project Managers are Dennis Group’s primary client contact through the entire project delivery process, from design concept through bidding, construction, and start-up. As a Project…
Added 39 mins ago
A
Production Engineer II
Actalent
Houston, TX
- $50 USD / hour
We are seeking a resilient, driven, and solutions-oriented Production Planning Engineer to support a dynamic and fast-paced manufacturing environment. This role is responsible for…
Added 40 mins ago
M
Pipe Stress Engineer
ManpowerGroup
Austin, TX
- $100 USD / hour
Our client, Factory Engineering is seeking a Pipe Stress Engineer to join their team. As a Pipe Stress Engineer, you will be part of the Factory Engineering team supporting manufacturing…
Added 41 mins ago
Construction Manager II (Traveling, Industrial Construction)
Dennis Group
Cincinnati, OH
Construction Managers are Dennis Group’s project site supervisors that oversee the daily operations of the construction activities including coordination of sub-contractors, site safety…
Added 41 mins ago
Construction Manager II (Traveling, Industrial Construction)
Dennis Group
Philadelphia, PA
Construction Managers are Dennis Group’s project site supervisors that oversee the daily operations of the construction activities including coordination of sub-contractors, site safety…
Added 2 hours ago
Gas Design I, II, III or Project Mgr (Jacksonville)
TECO Energy
Jacksonville, FL
Title: Gas Design I, II, III or Project Mgr (Jacksonville)
Added 2 hours ago
PN
Research Engineer II - Building Energy Modeling
Pacific Northwest National Laboratory
Portland, OR · Richland, WA · Seattle, WA
- $89,300 USD / year
The BS&DG is seeking a Research Engineer II - Building Energy Modeling with strong knowledge of building energy systems, hands-on Energy Plus modeling expertise, programming and data…
Added 2 hours ago
PN
Software Engineer II - Building Applications
Pacific Northwest National Laboratory
UNAVAILABLE · Portland, OR · Seattle, WA · Richland, WA
- $109,000 USD / year
The BS&DG is seeking a Software Engineer II - Building Applications with strong knowledge of software engineering and web application development to contribute to building technology…
Added 3 hours ago
Project engineer ii
Essential Utilities, Inc.
Bryn Mawr, PA
…water resources, and dam safety. Position Overview: As aProject Engineer II, you will be responsible for providing technical oversight for all engineering and operational activities…
Added 3 hours ago
Field Environmental Engineer
Terracon
Harrisburg, PA
…issues and concepts to technical and non-technical clients and project teams. Services may include a variety of environmental-related work including Phase I/II environmental site…
Added 3 hours ago
Field Environmental Engineer
Terracon
Harrisburg, PA
…issues and concepts to technical and non-technical clients and project teams. Services may include a variety of environmental-related work including Phase I/II environmental site…
Added 3 hours ago
AI & Automation Operational Engineer-II
AmerisourceBergen
Harrisburg, PA
…today! Job Details Summary: The AI & Automation Operational Engineer is a hands-on technical role responsible for designing, developing, deploying, supporting, and optimizing enterprise…
Added 3 hours ago
Business Analyst II (Hybrid)- Pittsburgh, PA
UPMC
Pittsburgh, PA
…times will, at times, require the employee to work until the project is completed, meaning extended daily work hours, extended work weeks, or…
Added 3 hours ago
Mechanical Engineer II (4830)
Honeywell
Kansas City, MO
## Duties and Responsibilities - Assists in the design and/or project/process management of products, programs, components, tools, and acceptance equipment under technical guidance Develops…
Added 4 hours ago
RA
Senior Mechanical Engineer- Plant Layout and Piping
Ramboll Americas Engineering Solutions, Inc.
Charlotte, NC
- $120,000 to $145,000 USD / year
Senior Mechanical Engineer – Plant Layout and Piping
Added 4 hours ago
Construction Manager II, Traveling (Industrial Construction)
Dennis Group
Salt Lake City, UT
Construction Managers are Dennis Group’s project site supervisors that oversee the daily operations of the construction activities including coordination of sub-contractors, site safety…
Added 4 hours ago
Construction Manager II (Traveling, Industrial Construction)
Dennis Group
Nashville, TN
Construction Managers are Dennis Group’s project site supervisors that oversee the daily operations of the construction activities including coordination of sub-contractors, site safety…
Added 4 hours ago
Construction Manager II (Traveling, Industrial Construction)
Dennis Group
Austin, TX
Construction Managers are Dennis Group’s project site supervisors that oversee the daily operations of the construction activities including coordination of sub-contractors, site safety…
Added 5 hours ago
Engineer I, Engineer II, Engineer III Gr
ALLIANT ENERGY CORP
MADISON, WI
Added 5 hours ago
Software Verification Engineer
GE HealthCare
Madison, WI
We are seeking a detail-oriented and driven Software Verification Engineer to join our engineering team. In this role, you will be responsible for performing verification testing and…
Added 5 hours ago
Electrical CAD Drafter
WISCONSIN ELECTRIC POWER CO
MILWAUKEE, WI
Added 5 hours ago
Biomedical Engineer
Veterans Affairs, Veterans Health Administration
Tulsa, OK
Added 5 hours ago
Biomedical Engineer
Veterans Affairs, Veterans Health Administration
Tulsa, OK
Summary The Eastern Oklahoma VA Health Care System seeks a Biomedical Engineer to support healthcare technology management. Responsibilities include assessing, acquiring, implementing,…

Amazon

Software Development Engineer II, EFA Network - Annapurna Labs

Seattle, WA, United States

Apply About employer

Applications open in a new tab.

Job details

Posting language: English
Posted: Oct 30, 2026

Original job description

Description

Want to help make the next generation of Machine Learning in the cloud possible? Do you have a laser focus on performance in your code? We want to talk to you!

We own the user-space software that makes the Elastic Fabric Adapter (EFA) network card work for Machine Learning (ML) and High-Performance Computing (HPC) customers on AWS. Across multiple projects written in C, our team enables customers to network thousands of GPU and CPU instance types to handle the toughest clustered workloads. Be a part of a dynamic, fast-paced group that has a big impact every day on the hottest companies doing AI and HPC today.

Key job responsibilities

You will write the highest-performing code in C for multiple open source projects supporting EFA, such as Libfabric and Open MPI. You will work with multiple teams in the stack to invent new APIs for the latest concepts in networking in the cloud. Dive deep into how your customers are doing collectives and messaging at high bandwidth and low latency. Provide expert-level support to some of the biggest names in AI in the world.

A day in the life

Start from the needs of your customer and invent new ways of cutting the occupancy of the software stack for EFA. Get your peers and stakeholders on board with excellent written designs. Write comprehensive tests to drive the development of new features and guard against regressions. Work with our ML Infrastructure team to see your products perform on 100s and 1000s of top-end machine clusters.

About the team

We are a fast-paced team that owns the user-space software stack for EFA. As part of Annapurna Labs in AWS we are very nimble, paying careful attention to what the AI industry is going to try next, and having our products ready. We focus heavily on automation, confining operations to the most interesting problems as customers continuously experiment with what our network can do. Our team is a place of growth, concentrating on your career and goals and motivating you to achieve your highest potential.

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
3+ years of professional experience programming high-performance software in C, ideally as part of an Open Source project

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
Experience developing in a network software stack, with a focus on cutting occupancy to the barest minimum number of instructions

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

Apply About employer

More about this job

Skills

Software development
AWS
C
Computer science
Recruitment
Mental health

Report this job