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Added 8 mins ago
Senior Product Development Engineer - Lenoir City, TN
Hubbell Incorporated
Lenoir City, TN
The Senior Product Development Engineer will lead and execute the technical design and development of new products and processes. This role will develop product concepts/ innovative…
Added 13 mins ago
Senior Automation Engineer
Flora Food Group
Hugoton, KS
This role typically leads to senior leadership positions within plant engineering or automation management, with opportunities to influence multi-site automation strategies. Over time, you…
Added 14 mins ago
Senior Design Engineer
Actalent
Yoder, IN
Job Title: Lead Design EngineerJob DescriptionThe Lead Design Engineer leads program-level design and prototype fabrication of axles and chassis for both aftermarket and original equipment…
Added 22 mins ago
Senior Engineer – Medium & Low Voltage Power Systems Design
Shermco Industries, Inc.
Wyomissing, PA
Shermco is seeking a Senior Electrical Engineer with extensive experience designing and upgrading medium voltage electrical distribution systems for industrial, commercial, healthcare,…
Added 24 mins ago
Senior Software Engineer - Mobile
Jobgether
Remote, United States
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Software Engineer – Mobile based in the United States
Added 24 mins ago
J
Principal Systems Studies Engineer
Jobgether
Remote, United States
- $130,805 to $161,582 USD / year
The Principal Systems Studies Engineer will provide technical leadership across advanced power systems consulting, engineering studies, and grid modernization initiatives. Working with…
Added 43 mins ago
Senior Staff Software Engineer, AI Telemetry and Developer Intelligence
Google
San Jose, CA
Experience translating difficult technical challenges into production architectures with measurable reliability and adoption.
Added 44 mins ago
Silicon Photonics Design Engineer
Advanced Micro Devices, Inc.
FISHKILL, NY
Added 44 mins ago
Senior Engineer Protection & Control
Avangrid Service Co
BIBLE SCHOOL PARK, NY
Added 45 mins ago
RA
Lead Network Engineer
RWE Americas
White Plains, NY
- $127,000 to $171,000 USD / year
The role serves as a senior technical escalation point and leads complex network and security initiatives, including architecture, troubleshooting, modernization, resiliency, and standards…
Added 45 mins ago
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Hardware Design Engineer
Actalent
Horsham, PA
- $150,000 to $230,000 USD / year
Job Title: Senior Hardware Design Engineer Optical TransceiversJob DescriptionThis role leads the electrical hardware design of next-generation optical transceiver products for 1.2T and…
Added 46 mins ago
Senior Electrical Engineer, Advanced Development
Career Opportunities at Merz
Raleigh, NC
The Senior Electrical Engineer is responsible for electrical hardware design with emphasis on ultrasonic applications and analysis of current and new systems within the R&D Advanced…
Added 46 mins ago
CP
Senior Software Engineer
Comprehend PT Inc.
BUFFALO, NY
- $120,000 USD / year
Added 47 mins ago
Senior Software Engineer, Prime Video Personalization and Discovery
Amazon
New York, NY
Prime Video Personalization and Discovery (PVPD) is seeking a Senior Software Development Engineer to lead Personalization and Discovery customer experiences. This role will work across…
Added 47 mins ago
Data Engineer, AI Backend
Toppan Merrill LLC
NEW YORK, NY
Job Description:Data Engineer, AI BackendShape the Future of AI in Capital Markets and Legal DisclosureAt Toppan Merrill, we're building Quinn, a cloud-based platform that helps law firms,…
Added 47 mins ago
Senior Software Engineer / PoS & Payments / NYC
Kelly Services
New York, NY
As a Senior Software Engineer you’ll build and own financial systems spanning payroll, bill pay, embedded banking, accounting integrations, and ledgers. You’ll be one of the first engineers…
Added 50 mins ago
Senior DevSecOps Engineer
BAE Systems
Nashua, NH
…Systems' Digital Architecture Team (DAT) is looking to hire a Senior DevOps / DevSecOps Engineer to join our team. We are responsible for transitioning Engineering and Operations from…
Added 56 mins ago
Senior Staff Software Engineer
Jobgether
Remote, United States
As a senior technical leader on the Platform team, you will shape the architecture and evolution of cloud-based infrastructure that empowers scientific, data, and engineering teams to work…
Added 56 mins ago
J
Principal Engineer, Enterprise Scalability
Jobgether
Remote, United States
- $244,000 to $366,000 USD / year
The Principal Engineer will lead platform-wide initiatives to strengthen scalability, performance, reliability, and multi-region readiness for a high-growth, multi-tenant SaaS environment.…
Added 1 hour ago
S
Senior Solutions Engineer, Observe
Snowflake
Remote, United States
- $165,000 to $216,562 USD / year
As a Senior Solutions Engineer for Observe, you will play a critical, highly-visible, role within our organization, serving as the primary technical resource for our Sales team. You will be…
Added 1 hour ago
Senior Signal and Power Integrity Engineer
Google
Sunnyvale, CA
As a Signal Integrity/Power Integrity (SI/PI) Engineer, you will lead chip and package design, ensuring optimal SI/PI performance and system co-design from concept to production.…
Added 1 hour ago
Senior Software Engineer
CoreLogic Solutions, LLC
Dallas, TX
A Senior Professional, Software Engineer designs, builds, tests, deploys, and operates end-to-end product capabilities within an AI-native engineering pod. This role develops and delivers…
Added 1 hour ago
Sr Ethernet AI Network Engineer
Jobgether
Remote, United States
As a Senior Ethernet AI Network Engineer, you will help design, deploy, and maintain high-performance Ethernet fabrics that power advanced AI and high-performance computing (HPC)…
Added 1 hour ago
Senior Engineering Manager, Co-Intelligent Coaching
Jobgether
Remote, United States
…all applications and next steps. Our partner is looking for a Senior Engineering Manager, Co-Intelligent Coaching based in the United States…
Added 1 hour ago
Electro Mechanical Engineer Senior
Lockheed Martin
Littleton, CO
Introduction: We are looking for an Electro Mechanical engineer to join an exciting and dynamic team in designing, developing, testing, and troubleshooting complex harnessing and connectors.

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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