Jobs in the United States

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Added 3 mins ago
MP
Process Engineer 1 - Intern to Full-Time Conversion
Marathon Petroleum Corporation
Garyville, LA
- Full-time
…execution. May review turnaround planning, including scope development and post-event evaluations• Maintains and updates process documentation. Troubleshoots and maintains unit mass balance…
Added 3 mins ago
Google AI Architect
Deloitte
New Orleans, LA
…teams, modernize technology, and deliver complex programs with a product engineering approach. Our flexible delivery models-traditional teams, pools, or pods-are tailored to each client's…
Added 3 mins ago
Cyber Operate Manager - GCP Cloud DevOps Engineer
Deloitte
New Orleans, LA
Deloitte is seeking a Lead Managed Services Engineer II to design, automate, and operate enterprise-scale cloud capabilities that support clients' critical cyber assets. In this role, you…
Added 3 mins ago
Product Manager
Meta
Baton Rouge, LA
Integrate data, usability studies, research, and market analysis into product strategies and requirements to enhance user satisfaction and improve engineer productivity
Added 3 mins ago
Director, AI Engineer (Remote Eligible)
Capital One
Baton Rouge, LA
…deliver our industry leading capabilities with breakthrough product experiences and scalable, high-performance AI infrastructure. At Capital One, you will help bring the transformative…
Added 4 mins ago
Principal Software Engineer
Highmark Health
Baton Rouge, LA
We are seeking a visionary Principal Software Engineer responsible for building scalable public-facing software applications across Digital Member Experience channels. As a key player…
Added 4 mins ago
Senior Staff Full-stack Engineer - Global Payment Network (Remote - Eligible)
Capital One
Baton Rouge, LA
As a Senior Staff Engineer at Capital One, you will be part of a community of technical experts working to define the future of banking in the cloud. You will work alongside our talented…
Added 4 mins ago
Site Reliability Engineer
Highmark Health
Baton Rouge, LA
…throughout their medical device technology lifecycle – from product/device evaluation, discovery, to implementation, maintenance, and through retirement. Maintains documentation related to…
Added 4 mins ago
Senior Technical IT Storage Engineer
Highmark Health
Baton Rouge, LA
This job is an integral member of one of our teams responsible for supporting the design, development, and maintenance of our technical IT Storage solutions, ensuring their efficient and…
Added 4 mins ago
EG
Dev Lead
Eliassen Group
Baton Rouge, LA
- $110 to $120 USD / hour
…engineering with team leadership, unblocking, and partnership with a Product Owner. The Dev Lead will drive technical direction, security, and performance while promoting agentic…
Added 4 mins ago
J
DevOps Engineer
Jobot
Montebello, CA
- $80,000 to $85,000 USD / year
If you are a DevOps Engineer and want to join a growing, tech-savvy E-Commerce company with a dynamic team then apply now!
Added 11 mins ago
Project Manager II (Industrial Construction)
Dennis Group
Salt Lake City, UT
Assisting with the development of project scope, budget, schedule, and critical path elements
Added 13 mins ago
Solutions Architect (US only)
Bolder Apps
Remote, United States
Bolder Apps is a product development studio that partners with US-based startups and established companies to build and scale innovative digital products. We specialize in AI-powered…
Added 13 mins ago
Sr. React Native Engineer | US/Canada
Pack.com
Remote, United States
…mobile surface. We are looking for an elite Senior React Native Engineer to lead the engineering of our iOS and Android mobile apps from development builds through app store…
Added 19 mins ago
EC
Lead Electrical Engineer
Eaton Corporation
Davenport, IA
- $97,000 to $143,000 USD / year
The individual will be responsible for leading Oxygen projects consisting of development of electrical and electronics hardware. This includes development of requirements, adherence to…
Added 19 mins ago
Electrical Engineer
Eaton Corporation
Davenport, IA
…eventually leading electrical/electronic activities for new product development including: analyzing requirements and assessing compliance, defining interfaces, reviewing component spec and…
Added 19 mins ago
Site Reliability Engineer
Highmark Health
Des Moines, IA
…throughout their medical device technology lifecycle – from product/device evaluation, discovery, to implementation, maintenance, and through retirement. Maintains documentation related to…
Added 19 mins ago
EG
Dev Lead
Eliassen Group
Des Moines, IA
- $110 to $120 USD / hour
…engineering with team leadership, unblocking, and partnership with a Product Owner. The Dev Lead will drive technical direction, security, and performance while promoting agentic…
Added 35 mins ago
Manager, Data Engineering- (DAFgiving360)
Charles Schwab
Westlake, TX
…make a greater impact in their communities. As a Manager, Data Engineer, you will play a critical role in advancing DAFgiving360’s Foundation360 strategy by designing, building, and…
Added 36 mins ago
Medium Gas Turbine Commissioning Engineer
Siemens Energy
Deer Park, TX
In the role of Commissioning Engineer (CE) for Medium Gas
Added 36 mins ago
Tolling Leader
Baker Hughes
Sugar Land, TX
As the Tolling Lead - North America Land, you will be responsible for the operational management and development of third-party manufacturing partners. You will work closely with toll…
Added 37 mins ago
Production Engineer - Heavy Oil-Enhanced Oil Recovery Lead
ExxonMobil
Spring, TX
The success of our Upstream, Product Solutions and Low Carbon Solutions businesses is the result of the talent, curiosity and drive of our people. They bring solutions every day to optimize…
Added 37 mins ago
Project Engineer- Midland, TX
ExxonMobil
Midland, TX
The success of our Upstream, Product Solutions and Low Carbon Solutions businesses is the result of the talent, curiosity and drive of our people. They bring solutions every day to optimize…
Added 37 mins ago
Mechanical Engineer
Warren Equipment Company
Midland, TX
The Mechanical Engineer I is responsible for the design, development, and integration of Caterpillar® engines, generator sets, and related power systems into custom packaged solutions. This…
Added 37 mins ago
Environments Engineer Asc- Level 1
Lockheed Martin
Grand Prairie, TX
Responsibilities will include development and flow-down of environmental requirements to systems and components. This engineer will need experience with vibration analysis and testing. With…

Microsoft

Principal Software Engineer

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: Apr 28, 2027
Posting language: English
Posted: Oct 30, 2026

Original job description

Overview

We are looking for a Principal Software Engineer who lives and breathes Azure Cosmos DB and knows how it is implemented underneath. Your mission is to make throttling disappear from Microsoft's AI plugin registry with fast, surgical, high-ROI changes. Success is objective: throttling goes away, reliability goes up, and latency goes down, even as scale grows. You will see the results in days, not quarters. We are the Agent Tools and Lifecycle team in Microsoft's Copilot, Agents and Platform (CAP) organization. We build the service behind the AI plugin registry. Admins use it in the Microsoft 365 admin center to govern the plugins (skills, connectors, and agents) that extend Microsoft Copilot, and users discover and use those plugins across products such as Copilot Chat, Cowork, Teams, Word, Excel, and PowerPoint. The registry is a core part of Microsoft's AI architecture, alongside Work IQ, and Copilot experiences across Microsoft depend on it. If you use an AI solution from Microsoft, you likely are working with our service. Come join us at the center of AI transformation at Microsoft! As a hands-on individual contributor, you will be the technical leader for the AI plugin registry's Azure Cosmos DB tier. Our catalog of plugins and agents, and the entitlements and policies that decide who can use them, live in Cosmos DB in data centers worldwide, including sovereign clouds. Traffic keeps growing as the registry expands to experiences such as Copilot Studio, GitHub Copilot, and Microsoft Foundry. Experience working on the internals of Cosmos DB or a comparable database, such as MongoDB, Amazon DynamoDB, or Apache Cassandra, and an understanding of the hardware and network limits that make them throttle, are especially valuable. Our global reach means 24/7 on-call service. This position is based in Redmond, Washington and requires the employee be in the office a minimum of 3 days per week. 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

Cut request unit (RU) consumption to make throttling go away, fast. Start with the queries that use the most RUs, where we see room for 50–90% reductions: turn cross-partition and fan-out queries into point reads from Cosmos DB or Azure Blob Storage, batched reads, or single-partition queries, and tune indexes.
Pick work by return on investment. Ship several targeted fixes in parallel, each within days, and measure each one in production. Take on a larger redesign only when the data shows smaller fixes cannot get there, and deliver it in steps that each pay off.
Fix hot partitions and size limits at the source: partition keys, document design, indexing policies, and API contracts that give high-traffic calls the keys they need for point reads. When data has to move, migrate it with zero downtime across all environments, including sovereign clouds.
Decide what belongs in Cosmos DB. Move large, binary, unbounded, or rarely queried content to Azure Blob Storage or other storage, weighing latency, availability, and data-residency needs.
Remove redundant and sequential database calls on our busiest paths with batching, request coalescing, and caching, and use retry budgets, load shedding, and graceful degradation so database pressure does not turn into failed requests.
Work with product management and the teams that call us to give each caller a throttling budget. Find callers that request the same unchanged data again and again, help them cache on their side, and lower the budgets of the heaviest callers over time.
Make success measurable: own the telemetry, dashboards, and alerts, RU use per API and per caller, partition skew, availability, and latency. Set targets, show the effect of every change, and spot limits before we hit them.
Raise the bar through AI: write AI skills that review designs and code for Cosmos DB mistakes, find high-RU queries, and show engineers how to fix them, so your expertise scales across the team. Use agentic tools to build and validate fixes faster, following Responsible AI practices. Mentor engineers and represent us with the Azure Cosmos DB product group.
Serve as a Designated Responsible Individual (DRI) in our 24/7 on-call rotation, lead data-tier incident response, and turn what we learn into lasting fixes.

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.

Other Requirements:

Ability to meet Microsoft, customer and/or government security screening requirements are required for this role. These requirements include but are not limited to the following specialized security screenings:

Microsoft Cloud Background Check: This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter.

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.
4+ years of experience building or operating large-scale distributed databases, such as Azure Cosmos DB, MongoDB, Amazon DynamoDB, or Apache Cassandra, including partitioning, indexing, and query performance.
Experience finding and fixing throttling, hot partitions, or resource-heavy cross-partition queries in production databases.
Experience building or improving the internals of Azure Cosmos DB, or of a comparable distributed database such as MongoDB, Amazon DynamoDB, or Apache Cassandra, in areas such as partitioning, replication, storage engines, query execution, indexing, or rate limiting.
Deep, hands-on Azure Cosmos DB expertise: what drives the RUs each operation uses, physical partitions and splits, hierarchical partition keys, indexing policies, point reads and ReadMany versus cross-partition queries, change feed, consistency levels, multi-region accounts, autoscale, SDK (software development kit) retries, and diagnosing errors.
Track record of making throttling go away quickly, raising availability, and cutting tail latency in production, with targeted, high-ROI changes and before-and-after measurements to prove it.
Deep understanding of why distributed databases throttle, from per-partition throughput and storage limits to hardware, network, and replication overhead, and how to design data models that stay within those limits.
Experience moving large or rarely queried content from a document database to Azure Blob Storage or comparable object storage, and serving it with point reads.
Experience with zero-downtime data migrations and re-partitioning on live production systems.
Experience designing rate limits, quotas, and noisy-neighbor isolation for a multi-tenant platform, and getting partner teams to cache on their side.
Proficiency in C# and .NET, and experience with Azure services such as Azure Functions, Service Bus, Azure Cache for Redis, and API (application programming interface) Management.
Understanding of modern AI technologies, including generative AI and foundation models, and experience writing AI skills and using agentic tools to engineer faster.

#CosmosDB, #MongoDB, #DynamoDB, #Cassandra,# AI,# Artificial Intelligence

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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