Jobs in the United States

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Added 6 mins ago
TK
Product Development Engineer Handgun - CCI Speer
The Kinetic Group Operations LLC
Lewiston, ID
- $80,000 to $130,000 USD / year
Added 6 mins ago
Front End Web Applications Developer (Mid-Level) (5664)
SMX
Boise, ID
SMX is currently looking for a highly motivated Software Engineer - Front End Web Applications to contribute to the design, build, support, and implementation of the Budget and Spend (BAS)…
Added 6 mins ago
Front End Web Applications Developer (Junior) (5660)
SMX
Boise, ID
SMX is currently looking for a highly motivated Software Engineer - Front End Web Application s to contribute to the design, build, support, and implementation of the Budget and Spend (BAS)…
Added 6 mins ago
Associate Software Engineer
Highmark Health
Boise, ID
This job is an integral member of an agile software engineer team responsible for building scalable software applications across all digital channels to serve our customers. Responsible for…
Added 6 mins ago
Vice President, Cloud Platform Engineer
SitusAMC
Boise, ID
SitusAMC is on a Digital Transformation journey to Strategize, implement, and automate end-to-end product delivery using turn-key technologies. This role requires a passion for programming…
Added 6 mins ago
Lead AI and Data Science Engineer II
Deloitte
Boise, ID
…connective tissue between business stakeholders, end users, and the development team, and using data to continuously improve the product experience and drive realized…
Added 6 mins ago
Director - Customer Response Engineering
Trellix
Boise, ID
Partner with Technical Support, Customer Success, Product Management, and Engineering so issues reach the right engineer fast and customer feedback reaches the roadmap.
Added 22 mins ago
Technical Support Engineer (CS)
Jobgether
Remote, United States
The Technical Support Engineer will play a key role in helping enterprise customers successfully adopt and operate a platform that connects AI agents and human users with business systems…
Added 27 mins ago
Engineering Manager - Property Management
TheGuarantors
New York, NY
…integrations and data sync, and the services and APIs that downstream product teams rely on for leasing, renewals, and operational…
Added 29 mins ago
Software Verification Engineer
NVIDIA Corporation
North District, IL
Analyze coverage measures to identify verification holes and to show progress toward product development and releases.
Added 47 mins ago
O
Principal Backend Developer - Clinical Applications
Oracle
Jefferson City, MO
- $114,600 to $234,600 USD / year
…platform. We are seeking a highly skilled Principal Software Engineer to join our Clinical Applications Engineering team focused on modernizing provider workflows, inbox management, and…
Added 53 mins ago
Senior Staff Software Engineer, Android & IoT
Jobgether
Remote, United States
This is a senior technical leadership opportunity for an experienced software engineer to shape the architecture and evolution of products that support large-scale connected device…
Added 54 mins ago
DA
Supervisory IT Specialist
Deputy Assistant Secretary for Information and Technology
Location Negotiable After Selection
- $147,945 to $192,331 USD / year
The incumbent serves as a Director in Product Engineering Services. The incumbent serves as the Platform Engineering Lead for systems within their portfolio and is responsible for…
Added 56 mins ago
BO
General Engineer - Banknote Development, Quality, and Manufacturing
Bureau of Engraving and Printing
Washington, DC · Fort Worth, TX
- $81,186 to $111,087 USD / year
…the Deputy Director - Chief Operating Officer. As a General Engineer - Banknote Development, Quality, and Manufacturing, you will apply mechanical, electrical, industrial engineering or…
Added 1 hour ago
Senior Staff Optical Engineer, Geo
Google
Mountain View, CA
Organizational capacity to maintain a portfolio of metrology and design capabilities for ongoing product experimentation and engagement.
Added 1 hour ago
JW
Senior Application Engineer-Electrical
Judd Wire Inc.
Turners Falls, MA
- $120,840 USD / year
Senior Application Engineer - Electrical Description Judd Wire Inc., a Sumitomo Electric Group company, is looking for a Senior Application Engineer - Aerospace for our Turners Falls, MA…
Added 1 hour ago
Manufacturing Engineer 3 - 31037
Huntington Ingalls Industries
Pocasset, MA
The Senior Manufacturing Engineer leads the development, implementation, and sustainment of manufacturing processes for Unmanned Underwater Vehicles (UUVs) in a defense contracting…
Added 1 hour ago
JW
Application Engineer-Electrical
Judd Wire Inc.
Turners Falls, MA
- $99,867.9 USD / year
Application Engineer - Electrical Description Judd Wire Inc., a Sumitomo Electric Group company, is looking for an Application Engineer - Electrical for our Turners Falls, MA office. This…
Added 1 hour ago
Engineer V
General Atomics
Acton, MA
…Technology Products’ Systems Engineering Directorate for a Project Engineer to lead engineering and development of cutting-edge GA-EMS products and technologies. This position directly…
Added 1 hour ago
Software Engineer in Test - MATLAB Editor
MathWorks
Natick, MA
As a Software Engineer in Test on the MATLAB Editor, you'll uphold the standard of quality that impacts thousands of users every day through MATLAB's coding and editing capabilities across…
Added 1 hour ago
Mechanical Engineer, Staff - E4
Lockheed Martin
Chelmsford, MA
…worldwide and is principally engaged in the research, design, development, manufacture, integration, and sustainment of advanced technology systems, products, and services. Lockheed Martin…
Added 1 hour ago
Test Systems Development Engineer I
Abbott
Burlington, MA
The Test Systems Development Engineer I develops automated test systems, fixtures, equipment, and methodologies to support the research, development, characterization, and verification of…
Added 1 hour ago
Software Development Engineer, OneMHS
Amazon
Boston, MA
We are seeking an exceptional Software Development Engineer to build and scale edge machine learning compute, equipment monitoring, and computer vision capabilities across our global…
Added 1 hour ago
Senior Open Source Developer - TypeScript/Node/Angular/React/.NET
Kelly Services
Boston, MA
We are seeking a Senior Open Source Software Engineer to join a growing engineering organization focused on building and maintaining widely adopted open source software. This role will…
Added 1 hour ago
Lead Open Source Developer - TypeScript/Node/Angular/React/.NET
Kelly Services
Boston, MA
We are seeking a Lead Open Source Software Engineer to provide technical leadership across a growing suite of open source products and platforms. This role combines hands-on software…

Microsoft

Principal Software Engineer - AI Infrastructure

WA, United States
Redmond, WA, United States
Redmond, United States

$142,800 to $304,200 USD / year

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Job details

Pay: $142,800 to $304,200 USD / year
Apply by: May 2, 2027
Posting language: English
Posted: Nov 3, 2026

Original job description

Overview

Help build the infrastructure that trains the next generation of agentic Artificial Intelligence (AI) models at Microsoft. The Cloud + AI (C+AI) organization builds the end-to-end AI stack that powers innovation across Azure and Microsoft. The Foundry, Inference and Training (FIT) Training Team is where frontier-scale model training meets production-grade engineering. You will work alongside engineers and researchers to advance the scientific methods and scalable infrastructure used to train Large Language Models (LLMs), Small Language Models (SLMs), and agentic models, spanning both proprietary and open-weight models and building on open-source training frameworks. Your work will directly shape how reliable, enterprise-grade agentic workflows are built across the company and experienced by the customers who depend on them.

As a Principal Software Engineer on this team, you will own the architecture and technical direction of major components of the training platform and drive them from ambiguous problem statements through production operation. You will keep the customer at the center of every decision, partnering directly with the researchers and product teams who rely on the platform to understand their needs, remove friction, and measure success by their outcomes. You will set the technical bar for the team through design leadership, code and test-strategy reviews, and mentorship, and you will partner across C+AI and with partner organizations to align infrastructure roadmaps with model training and evaluation needs. This opportunity will allow you to deepen your expertise in large-scale distributed systems for AI training, develop firsthand understanding of how frontier proprietary and open-weight models are trained and evaluated, and grow your influence as a technical leader who shapes architecture, engineering practices, and the next generation of engineers on a fast-moving, startup-style team.

We are looking for a curious, independent, adaptable, and customer-obsessed problem-solver who thrives on continuous learning, is energized by evolving priorities, and is motivated by the impact your work has on the people who use it. You write efficient, well-tested code, enjoy debugging hard problems in complex distributed systems, and share what you learn. You iterate quickly, adjust course when the evidence calls for it, and collaborate effectively in a dynamic environment. Microsoft’s mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset, innovate to empower others and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond

Responsibilities

Own the architecture and technical direction of major components of the training platform for Large Language Models (LLMs), Small Language Models (SLMs), multimodal, code-specific, and open-weight models, ensuring designs meet scalability, reliability, security, and cost-efficiency requirements.
Partner directly with customers, including researchers and product teams across Microsoft, to understand their training and evaluation needs, translate them into platform requirements, and measure success through customer experience and outcomes.
Drive ambiguous, multi-quarter initiatives from proposal to production, breaking work into milestones, identifying dependencies, and negotiating ownership and delivery commitments with partner teams across Cloud + AI (C+AI).
Build on and extend open-source training frameworks (for example, PyTorch, DeepSpeed, Megatron-LM, and Hugging Face libraries), adapting them for proprietary and open-weight models and contributing improvements back to the community where appropriate.
Design and build services that serve production traffic while meeting Microsoft security, privacy, Responsible AI, and compliance requirements, including auditable evidence of compliance.
Lead debugging and resolution of complex issues in distributed training jobs and production services; participate in the on-call rotation as a Designated Responsible Individual (DRI), lead incident retrospectives, and improve troubleshooting guides, testing, safe deployment, and monitoring.
Mentor engineers and raise the technical bar through design reviews, code reviews, and ownership of the team's test strategy, while championing AI-assisted engineering tools and practices across the software development lifecycle.

Qualifications

Required Qualifications:

Bachelor's Degree in Computer Science or related technical field AND 6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience.

Preferred Qualifications:

Master's Degree in Computer Science or related technical field AND 8+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR Bachelor's Degree in Computer Science or related technical field AND 12+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience.
5+ years designing, building, and operating large-scale distributed systems or cloud platforms with end-to-end ownership of production services, including Kubernetes-based containerized platforms on Microsoft Azure, Amazon Web Services (AWS), or Google Cloud, control-plane or backend services that manage compute, storage, and networking, and secure multi-tenant designs covering authentication, authorization, workload identity, quota management, and isolation.
3+ years building machine learning training infrastructure, such as Graphics Processing Unit (GPU) cluster scheduling, data pipelines, and checkpointing and storage systems, using open-source training frameworks such as PyTorch Fully Sharded Data Parallel (FSDP), DeepSpeed, Megatron-LM, Hugging Face Transformers and Accelerate, or Ray Train; contributions to open-source projects are a strong plus.
2+ years training, fine-tuning, or evaluating open-weight models (for example, Llama, Mistral, Phi, Qwen, or DeepSeek model families) at multi-node scale.
2+ years building or operating Reinforcement Learning (RL) post-training pipelines for Large Language Models (LLMs) and agentic models using verl, slime, MILES, or comparable frameworks, with a demonstrated understanding of the end-to-end training stack, including pretraining and post-training frameworks, Reinforcement Learning Environments (RLEs), rollout inference engines (for example, vLLM or SGLang), evaluation, and checkpointing, and how design choices at each layer affect throughput, stability, and cost.
3+ years serving as an on-call or Designated Responsible Individual (DRI) engineer for production services operating against defined availability or latency targets, including incident response, postmortems, structured logging, distributed tracing, dashboards, alerting, automated validation, and incident playbooks.
2+ years partnering directly with internal or external customers to define requirements, instrument customer experience (for example, adoption, satisfaction, or time-to-first-result metrics), and prioritize engineering work by customer impact.
Experience leading technical design across 2+ teams, driving ambiguous multi-quarter initiatives to completion, and mentoring senior engineers.

#AIPLATFORM #AIINFRA

Software Engineering IC5 - The typical base pay range for this role across the U.S. is USD $142,800 - $274,800 per year. There is a different range applicable to specific work locations, within the San Francisco Bay area and New York City metropolitan area, and the base pay range for this role in those locations is USD $188,000 - $304,200 per year.

Certain roles may be eligible for benefits and other compensation. Find additional benefits and pay information here: https://careers.microsoft.com/us/en/us-corporate-pay

This position will be open for a minimum of 5 days, with applications accepted on an ongoing basis until the position is filled.

Microsoft is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, citizenship, color, family or medical care leave, gender identity or expression, genetic information, immigration status, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran or military status, race, ethnicity, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable local laws, regulations and ordinances. If you need assistance with religious accommodations and/or a reasonable accommodation due to a disability during the application process, read more about requesting accommodations.

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More about this job

Skills

Scientific research methodology
Leadership
Debugging
Customer experience
PyTorch
Hugging Face
Troubleshooting
Software development
Computer science
C
C++
C#
Oracle Java
JavaScript
Python
Kubernetes
Microsoft Azure
AWS
Google Cloud
Machine learning
Scheduling
Incident response
Coaching

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