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Added 20 mins ago
GA
Sr Staff Applications Operations Engineer – Engineering Tools Automation & AI Ops
GE Aerospace
Auburn, ME
- $131,000 to $174,000 USD / year
Drive consistent incident, problem, and change management across pods; lead resolution of high-severity escalations and root cause analysis.
Added 20 mins ago
Director - Customer Response Engineering
Trellix
Augusta, ME
10+ years in enterprise security or infrastructure across engineering, sustaining or escalation engineering, professional services, or advanced technical support.
Added 21 mins ago
OT Security Platform Engineer – Dragos
Cognizant
Augusta, ME
We are seeking an experienced OT Security Platform Engineer / Technical Lead to own and operate the Dragos security monitoring platform across a global manufacturing environment. This is a…
Added 21 mins ago
EG
Cloud Engineer
Eliassen Group
Augusta, ME
- $70 to $88 USD / hour
Preferred: Cloud infrastructure or security certification.
Added 26 mins ago
Director - Customer Response Engineering
Trellix
Helena, MT
10+ years in enterprise security or infrastructure across engineering, sustaining or escalation engineering, professional services, or advanced technical support.
Added 26 mins ago
Engineering Executive - Long Range Building Program
State of Montana
Helena, MT
…statewide facility strategy, capital investments, and public infrastructure that will serve Montanans for generations. You will lead a multidisciplinary division responsible for capital…
Added 26 mins ago
GA
Sr Staff Applications Operations Engineer – Engineering Tools Automation & AI Ops
GE Aerospace
Helena, MT
- $131,000 to $174,000 USD / year
Drive consistent incident, problem, and change management across pods; lead resolution of high-severity escalations and root cause analysis.
Added 26 mins ago
OT Security Platform Engineer – Dragos
Cognizant
Helena, MT
We are seeking an experienced OT Security Platform Engineer / Technical Lead to own and operate the Dragos security monitoring platform across a global manufacturing environment. This is a…
Added 26 mins ago
EG
Cloud Engineer
Eliassen Group
Helena, MT
- $70 to $88 USD / hour
Preferred: Cloud infrastructure or security certification.
Added 31 mins ago
EG
Cloud Engineer
Eliassen Group
Baton Rouge, LA
- $70 to $88 USD / hour
Preferred: Cloud infrastructure or security certification.
Added 37 mins ago
Amazon Dedicated Cloud Engineer, US ADC Security
Amazon.com Services LLC
Herndon, VA
The US ADC Security Engineering team is seeking an experienced ADC Engineer to serve as a senior technical leader for our operations team. You will be the technical escalation point for the…
Added 41 mins ago
EG
Cloud Engineer
Eliassen Group
Des Moines, IA
- $70 to $88 USD / hour
Preferred: Cloud infrastructure or security certification.
Added 52 mins ago
Principal Infrastructure Engineer - Public Cloud Storage
Wells Fargo
CHANDLER, AZ
Wells Fargo is seeking a Storage Engineer in the Public Cloud Storage space to lead the design, engineering, automation, and adoption of cloud-based storage services with a primary focus on…
Added 52 mins ago
Principal Cybersecurity Incident Response Engineer
Wells Fargo
CHANDLER, AZ
Develop containment, eradication, and recovery recommendations; coordinate technical response activities with security, infrastructure, application, and other appropriate teams
Added 53 mins ago
AE
Campus Undergraduate Summer Internship Program - 2027 AI Engineer, Enterprise Technology Services- Phoenix, AZ
American Express
Phoenix, AZ
- $24.05 to $63 USD / hour
…for the company’s technology engineering, architecture, and infrastructure, providing 24x7 support to ensure an uninterrupted, high-quality experience for customers and colleagues. We also…
Added 53 mins ago
EG
Cloud Engineer
Eliassen Group
Phoenix, AZ
- $70 to $88 USD / hour
Preferred: Cloud infrastructure or security certification.
Added 59 mins ago
Customer Success Manager, AI Products - MCP Manager
Usercentrics
NY · New York, NY
Ideally, you have worked with customers in security, developer tools, data infrastructure, or AI software, or have hands-on familiarity with AI agents or Model Context Protocol (MCP).
Added 59 mins ago
Senior Platform Engineer
Foresight Works Ltd
NY · New York, NY
You will design and run the infrastructure, delivery pipelines and observability that let every engineer ship safely and often. You will make the platform secure and compliant by default,…
Added 59 mins ago
Senior Platform Engineer
Foresight Works Ltd
San Francisco, CA
You will design and run the infrastructure, delivery pipelines and observability that let every engineer ship safely and often. You will make the platform secure and compliant by default,…
Added 1 hour ago
EG
Cloud Engineer
Eliassen Group
Honolulu, HI
- $70 to $88 USD / hour
Preferred: Cloud infrastructure or security certification.
Added 1 hour ago
Senior Specialist, Integration & Test Engineer
L3Harris
Melbourne, FL
…air, land, sea and cyber domains in the interest of national…
Added 1 hour ago
Digital Signals Processing (DSP) Engineer
CACI International
Sarasota, FL
You will work with a fast-paced, technically diverse team that develops and supports infrastructure for software-based signal processing applications. You will participate in full IT…
Added 1 hour ago
Low Latency Trading Infrastructure Engineer
Citigroup
Jacksonville, FL
The Low Latency Trading Infrastructure Engineer is a rare combination of deep technical specialist and mission-critical operator - a professional whose expertise sits at the intersection of…
Added 1 hour ago
M
Principal Software Engineer
Microsoft
WA · Redmond, WA · Redmond
- $142,800 to $304,200 USD / year
We are looking to welcome a Principal Software Engineer to a group of innovative, energetic and diverse engineers on the CoPilot Runtime Platform team, which is the engineering organization…
Added 1 hour ago
Product Engineer (AI-Augmented & Full-Stack Systems)
Kelly Services
Tampa, FL
Grow your career as a Product Engineer with an innovative global bank in Tampa, FL. Contract role with strong probability of extension and conversion. Will require working a hybrid schedule…

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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