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Added 41 mins ago
Software Engineer II- Full-stack Developer
Deloitte US
Atlanta, GA · Boston, MA · Charlotte, NC · Chicago, IL · Cincinnati, OH · Cleveland, OH · Columbus, OH · Costa Mesa, CA · Dallas, TX · Denver, CO · Detroit, MI · Hartford, CT · Houston, TX · Kansas City, MO · Los Angeles, CA · McLean, VA · Miami, FL · Minneapolis, MN · Nashville, TN · NY · Philadelphia, PA · Pittsburgh, PA · Raleigh, NC · Richmond, VA · Sacramento, CA · San Jose, CA · Seattle, WA · St. Louis, MO · Stamford, CT · Tampa, FL
Software Engineer II, AI & Engineering/Engineering as a Service
Added 51 mins ago
Applied AI Site Reliability Engineer III
Deloitte US
Hermitage, TN · Nashville, TN
As an Applied AI Site Reliability Engineer III, you will actively engage in your engineering craft, taking a hands-on approach to the reliability, performance, and operational integrity of…
Added 51 mins ago
L55 - Lead DevOps Engineer II
Deloitte US
Hermitage, TN · Nashville, TN
As a Lead Applied AI Site Reliability Engineer II, you will actively engage in your engineering craft, taking a hands-on approach to the reliability, performance, and operational integrity…
Added 52 mins ago
Applied AI Site Reliability Engineer I (PxE A&A)
Deloitte US
Tampa, FL
As an Applied AI Site Reliability Engineer I, you will actively engage in your engineering craft, taking a hands-on approach to the reliability, performance, and operational integrity of…
Added 52 mins ago
Applied AI Platform Engineer III
Deloitte US
Dallas, TX · Hermitage, TN · Jersey City, NJ · Morristown, NJ · Nashville, TN · NY
Role Overview: As an Applied AI Platform Engineer III, you will actively engage in your engineering craft, taking a hands-on approach to building the platforms, tooling, accelerators, and…
Added 53 mins ago
.NET Software Engineer
Deloitte US
Atlanta, GA · Austin, TX · Baltimore, MD · Boston, MA · Charlotte, NC · Chicago, IL · Costa Mesa, CA · Dallas, TX · Detroit, MI · Fort Worth, TX · Gilbert, AZ · Grand Rapids, MI · Hartford, CT · Hermitage, TN · Houston, TX · Indianapolis, IN · Jacksonville, FL · Jersey City, NJ · Los Angeles, CA · McLean, VA · Miami, FL · Minneapolis, MN · Morristown, NJ · Nashville, TN · NY · Philadelphia, PA · Pittsburgh, PA · Raleigh, NC · Richmond, VA · Rosslyn, VA · Sacramento, CA · San Antonio, TX · San Diego, CA · San Francisco, CA · San Jose, CA · Seattle, WA · Stamford, CT · Tampa, FL
…a collaborative environment? As an experienced .NETSoftware Engineer, you will have the ability to share new ideas and collaborate on projects as a consultant without the extensive demands…
Added 54 mins ago
Senior, Full Stack Engineer - Tax Transformation
Deloitte US
Atlanta, GA · Boston, MA · Charlotte, NC · Chicago, IL · Costa Mesa, CA · Dallas, TX · Denver, CO · Grand Rapids, MI · Hartford, CT · Lake Mary, FL · Los Angeles, CA · McLean, VA · NY · Philadelphia, PA · Pittsburgh, PA · Raleigh, NC · Rosslyn, VA · San Diego, CA · San Francisco, CA · Seattle, WA · Tampa, FL · Washington, DC
As a Deloitte Tax Full Stack Engineer, Senior you’ll design, develop, and deploy cutting-edge web applications and features that solve key business challenges. You’ll work hands-on across…
Added 4 hours ago
Web Developer
CACI International
Chantilly, VA
…technologies such as HTML5, JavaScript, Bootstrap, CSS, C#/.NET, and SQL, you’ll help turn business needs into functional, user-focused…
Added 9 hours ago
Senior Software Engineer Technical Remediation & Enablement
Citigroup
New York, NY
The Vice President (VP) / Senior Software Engineer – Technical Remediation & Enablement Lead is a hands-on, code-level technical specialist responsible for driving the direct remediation of…
Added 12 hours ago
Senior Software Engineer
Dekker
Albuquerque, NM
Dekker is looking for experienced software engineers to join our growing team. A Senior Software Engineer designs, builds, and supports the applications, data pipelines, and AI-enabled…
Added 18 hours ago
Software Engineer III - Full-stack Developer with Anthropic Experience
Deloitte
Boston, MA
Software Engineer III with Agentic AI Experience, AI & Engineering/Engineering as a Service
Added 22 hours ago
Senior Software Engineer (.NET/Python)
CVS Health
Remote, United States
As a Senior Software Engineer on the MinuteClinic Product Engineering team, you will design, build, and operate the services that power patient-facing scheduling, kiosk, clinical workflows,…
Added 23 hours ago
Full-Stack Software Engineer
Trinzic
Beavercreek Township, OH
…from multiple sources into timely operational insight. This engineer will contribute across modern web applications, backend services, analytical workflows, and AI-enabled capabilities…
Added 1 day ago
TT
Senior Full Stack Software Engineer
True Talent Solutions Partners
Remote, United States
- $200,000 to $275,000 USD / year
- Collaborate with a frontend engineer to improve the product interface and accelerate delivery.
Added 1 day ago
Lead Platform Engineer (Full-Stack)
Young Basile
Troy, MI
Lead Platform Engineer (Full-Stack) (Troy, MI - Hybrid (Remote and In Person))
Added 1 day ago
Lead AI Transformation Engineer
Fiserv
Berkeley Heights, NJ
As a Lead AI Transformation Engineer, you will play a critical role in advancing AI-driven engineering practices and establishing technical excellence across the Issuer Solutions portfolio.…
Added 1 day ago
Full Stack Engineer II
AmerisourceBergen
Conshohocken, PA
…today! Job Details Summary: We're looking for a Full Stack Engineer II who can build and maintain applications across the stack while also working comfortably with data platforms and…
Added 1 day ago
AT
Senior Developer - D365/Power Platform/Azure
AHU Technologies Inc
Washington, DC
- $88 to $93 USD / hour
· Personally design and write complex work in the backlog: Dataverse plug-ins and custom APIs in C#/.NET, PCF controls, TypeScript/JavaScript client extensions, complex Power Fx, Azure…
Added 1 day ago
VG
Senior Software Engineer
Volvo Group
Greensboro, NC
- $111,100 to $137,200 USD / year
…pain points and areas for optimization. As the Senior Software Engineer you will design and develop digital products and AI based solutions crossfunctionally to successfully deliver…
Added 1 day ago
M
Principal Software Engineer
Microsoft
WA · Redmond, WA · Redmond
- $142,800 to $304,200 USD / year
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…
Added 1 day ago
KL
Associate Director, AI Application Engineer
KPMG LLP
Minneapolis, MN
- $11.41 USD / hour
KPMG is currently seeking an Associate Director, AI Application Engineer to join our Digital Nexus Technology organization.
Added 1 day ago
Application Integration Engineer
COTIVITI, INC.
SOUTH JORDAN, UT
Added 1 day ago
.NET Engineer (Benelux)
Lateral Group
Remote, United States
Design and build scalable, resilient cloud applications on Azure using C#, .NET and SQL, delivering solutions that are secure, high-performance, adhere to our Coding Standards and “just…
Added 1 day ago
Senior .NET Engineer (Benelux)
Lateral Group
Remote, United States
As a Senior .NET Engineer at Lateral, you will:
Added 1 day ago
Senior .NET Engineer (LATAM)
Lateral Group
Remote, United States
As a Senior .NET Developer at Lateral, you will:

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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