Find your dream job now!

Click on Location links to filter by Job Title & Location.
Click on Company links to filter by Company & Location.
For exact match, enclose search terms in "double quotes".

Keywords: Principal Engineer, Location: Washington

Page: 6

Principal Engineer Manager - Azure Storage

Partner with stakeholders to determine requirements for scalable, reliable, and high-performance storage solutions. Lead the design and implementation of enhancements to optimize the storage and disk control plane for AI-scale workloads. Id...

Company: Microsoft
Location: Redmond, WA
Posted Date: 23 Jan 2026

Principal Research Software Development Engineer

Agentic Memory Efficiency The physical world Security Frontier model architectures Mathematics and logic applied to LLMs You might be a great fit if you: Love the zone where research meets engineering - the space where new ideas become real...

Company: Microsoft
Location: Redmond, WA
Posted Date: 22 Jan 2026

Principal Software Engineer - SQL

Experience with high scale high throughput service is required. Experience with Azure SQL, CosmosDB is a plus. We do not just value differences or different perspectives. We seek them out and invite them in so we can tap into the collective...

Company: Microsoft
Location: Redmond, WA
Posted Date: 22 Jan 2026

Senior Software Engineer and Principal Software Engineer (Multiple Positions)

This is an individual contributor role requiring hands-on coding in C++, C#/Java. Independently execute in the face of ambiguity. Leads identification of dependencies and the development of design documents for a product, application, servi...

Company: Microsoft
Location: Redmond, WA
Posted Date: 22 Jan 2026

Principal Software Engineer - Backend

Designing and implementing elegant solutions to complex problems Mentoring and guiding other engineers on the team, keeping a high bar and ensuring we are building for the future. Working across teams on designs, protocols, and approaches, ...

Company: Microsoft
Location: Redmond, WA
Posted Date: 22 Jan 2026

Principal Software Engineer

Collaborate with data scientists, ML engineers, and product teams to define requirements for agentic AI-driven bidding capabilities that observe, reason, and adapt autonomously. Architect and implement the next-generation agentic bidding pl...

Company: Microsoft
Location: Redmond, WA
Posted Date: 22 Jan 2026

Principal Software Engineer

Experience with cloud storage, distributed task orchestration, and large-scale data processing is required, with proficiency on Azure or equivalent technologies on AWS and GCP (e.g., S3, Cloud Storage, Kafka, Kubernetes). Bachelor's Degree ...

Company: Microsoft
Location: Redmond, WA
Posted Date: 22 Jan 2026

Principal Software Engineer Manager

Security Architecture & Access Governance Own the end-to-end architecture for Role-Based Access Control (RBAC) and Multi-Tenant Operations (MTO), defining secure authorization models, least-privilege policies, and tenant isolation guarantee...

Company: Microsoft
Location: Redmond, WA
Posted Date: 22 Jan 2026

Principal Software Engineer - Data, Personalization - Microsoft AI

Architect scalable, low-latency systems for ingesting, processing, and serving personalized signals. Design data models and APIs that enable Copilot to reason about user context, preferences, and history Build real-time and batch personaliz...

Company: Microsoft
Location: Redmond, WA
Posted Date: 22 Jan 2026

Principal Firmware Engineer

Architectural and “Big Picture” Vision: Understand the system-level “big picture” to define and execute on the architecture for automation framework/infrastructure used in firmware validation across multiple organizations. Design and Develo...

Company: Microsoft
Location: Redmond, WA
Posted Date: 22 Jan 2026

Principal Software Engineer

Lead architectural improvements to the M365 Copilot Chat frontend platform to improve performance, reliability, and developer velocity at scale. Own server side rendering (SSR) and client hydration correctness across key Copilot Chat user j...

Company: Microsoft
Location: Redmond, WA
Posted Date: 22 Jan 2026

Principal Software Engineer - CoreAI

Leads by example and mentors' others to produce extensible and maintainable code used across the company. Leverages deep subject-matter expertise of cross-product features with appropriate stakeholders (e.g., project managers) to lead multi...

Company: Microsoft
Location: Redmond, WA
Posted Date: 18 Jan 2026

Principal UX Design Engineer

Shape the frontier: Prototype and define new interaction patterns for agentic coding, from prompt-based authoring to collaborative debugging. Design in code: Create functional prototypes and experimental interfaces that demonstrate the pote...

Company: Microsoft
Location: Redmond, WA
Posted Date: 18 Jan 2026

Principal Software Engineer

Lead and grow multiple engineering teams responsible for critical components of DocumentDB engine ( storage, index ,query and gateway). Oversee partnership with stakeholders (e.g., project manager, cross-function leaders) to determine user ...

Company: Microsoft
Location: Redmond, WA
Posted Date: 18 Jan 2026

Principal Software Engineer (Multiple Positions)

This is an individual contributor that requires leadership capabilities and requires hands-on coding in C++, C#/Java. Independently execute in the face of ambiguity. Leads identification of dependencies and the development of design documen...

Company: Microsoft
Location: Redmond, WA
Posted Date: 18 Jan 2026

Principal Software Engineer

This role involves crafting user-facing features powered by Generative AI while taking full ownership of their development from inception to delivery, ensuring exceptional quality and seamless implementation. You'll be working closely with ...

Company: Microsoft
Location: Redmond, WA
Posted Date: 18 Jan 2026

Principal Software Engineer, CoreAI

This role focuses on systems level optimization for largescale LLM inferencing with deep C++ expertise. Design and implement high performance microservices and runtime components in C++. Optimize AI inferencing systems for latency, throughp...

Company: Microsoft
Location: Redmond, WA
Posted Date: 18 Jan 2026

Principal Software Engineer - Backend

Lead the design and development of our enterprise-based platform, ensuring scalability, reliability, and performance. Implement best practices for model evaluation, and deployment in production environments. Mentor and guide Senior and juni...

Company: Microsoft
Location: Redmond, WA
Posted Date: 17 Jan 2026

Principal Software Engineer

To work with Design/PM/partner teams to come up the suitable UX design To build versatile rendering UX package/library on various platform To use data processing and monitoring system to analyze the system performance and drive the improvem...

Company: Microsoft
Location: Redmond, WA
Posted Date: 17 Jan 2026

Principal Software Engineer - AI Safety and Security

AI Logging and Observability: Develop company-wide logging strategies and implementations, enabling reliable attack mapping and automated detections; understand the architecture and pipelines for existing logging, data storage, and observab...

Company: Microsoft
Location: Redmond, WA
Posted Date: 17 Jan 2026