Principal Software Engineer CoreAI

Microsoft

Confirmed live 2 days ago High trust

Quick summary

Work type: On-site
Location: Redmond, WA
Salary: $142,800–$274,800 / yr
Posted: 15 days ago
Freshness: Confirmed live 2 days ago
Closes: Feb 23, 2027
Nearby: 99+ roles within 25 mi

Market check

Salary context

Above market

How this pay compares to similar roles

Similar $200k

This role $209k

$127k most similar roles pay here $291k

This role pays more than 66% of similar roles. Most pay $174,600–$226,350 — the shaded band above. At the midpoint, this role pays about $209k versus about $200k for comparable roles.

Based on 240 similar postings.

Employer

About Microsoft

Microsoft Corporation is a global technology leader producing software, hardware, and cloud services including Windows, Office 365, Azure cloud platform, Xbox gaming, and Surface devices. Industry: Software & Cloud Computing

Microsoft currently has 598 open roles on FindRole.

Listed pay typically runs $119,800–$234,700 across 586 roles with salary data.

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At a glance

TL;DR · Principal Software Engineer CoreAI

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As a Principal Software Engineer (CoreAI) on the Microsoft Foundry team, you will join the Agents Platform group to build intuitive agent-building experiences for developers and enterprises. You will architect full-stack solutions that span user experience, code-first platforms, and backend service layers to support robust agentic workflows and enterprise automation. Your daily work involves developing software using TypeScript, JavaScript, React, Next.js, Remix, Node.js, and Python while integrating various LLMs from providers like OpenAI, Anthropic, Phi, Meta, and OSS. You will design and maintain backend services, APIs, and AzureML capabilities to solve complex problems in generative AI systems. The role requires expertise in distributed systems, RESTful or GraphQL services, and database technologies including SQL, NoSQL, and vector databases, all while leveraging AI-assisted development tools to ensure high quality and velocity.

What does a Software Engineer earn in Washington?

Median $202800 from 326 postings across 28 companies.

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Skills

LLM GenAI Azure AzureML Python TypeScript JavaScript React Next.js Remix Node.js C# C++ C RESTful APIs GraphQL SQL NoSQL Vector Databases Distributed Systems

What you'll do

Architect full-stack solutions spanning user experience, code-first platforms, and backend service layers.
Develop software using languages such as TypeScript, JavaScript, React, and Python.
Design, develop, and maintain backend services and APIs to support agentic workflows.
Integrate customer feedback into the product with agility and dedication.
Utilize AI-assisted development tools and practices to accelerate delivery while maintaining high code quality.
Collaborate with partner teams to define and enhance AzureML capabilities.
Lead engineering best practices to improve team response to customer incidents.

What we're looking for

Bachelor's Degree in Computer Science or a related technical field is required or equivalent experience.
6+ years of technical engineering experience coding in languages such as C, C++, C#, Java, JavaScript, or Python.
6+ years of experience in platform or front-end development using multiple languages and frameworks including JavaScript, TypeScript, and React.
4+ years of experience in backend service development or creating developer platforms like APIs, SDKs, and CLIs.
Proficiency with AI-assisted software development tools and workflows to achieve high development velocity.
Expertise in LLM and GenAI application development and a passion for machine learning.
Deep understanding of modern front-end technologies including Next.js/Remix, SSR, Web Components, and performance optimization.
Ability to pass the required Microsoft Cloud background check.

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