Jobs in the United States

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Added 22 mins ago
Principal/ Sr Principal Mission Assurance Engineer - 18208
Northrop Grumman
Huntsville
Northrop Grumman Defense Systems is seeking a Principal/Sr. Principal Mission Assurance Engineer to support the SLCM-N Program Quality & Mission Assurance Team in Huntsville, AL. This role…
Added 22 mins ago
Senior Principal Systems Engineer *
Northrop Grumman
Fairfax · Morrisville
Northrop Grumman’s Space Systems Sector is seeking a Systems Engineer – Level 4 to join our team in our Fairfax, VA or Morrisville, NC locations.
Added 22 mins ago
Principal / Senior Principal Systems Safety Engineer
Northrop Grumman
Los Angeles
Northrop Grumman is seeking a Principal Systems Safety Engineer or Senior Principal Systems Safety Engineer to work with our Specialty Engineering Team out of Woodland Hills, CA. Our…
Added 22 mins ago
Sr Principal Engineer Systems
Northrop Grumman
Redondo Beach
Basic Qualifications for a Senior Principal Systems Engineer:
Added 22 mins ago
Sr Principal Cyber Software Engineer (J)
Northrop Grumman
Jessup
Northrop Grumman Mission Systems is seeking a Cyber DevOps Engineer to support the Joint Cyber Weapons Common Services (JCWCS) program. JCWCS designs and implements mission applications…
Added 22 mins ago
Principal Cyber Software Engineer (J)
Northrop Grumman
Jessup
Northrop Grumman Mission Systems is seeking a Cyber DevOps Engineer to support the Joint Cyber Weapons Common Services (JCWCS) program. JCWCS designs and implements mission applications…
Added 22 mins ago
Principal Engineer Manufacturing
Northrop Grumman
Sunnyvale
Northrop Grumman Mission Systems (NGMS) is looking for you to join our team as a Principal Manufacturing Engineer based out of Sunnyvale, CA.
Added 22 mins ago
Principal or Sr. Principal DevOps Engineer
Northrop Grumman
Baltimore
Northrop Grumman Mission Systems is looking for you to join our Software and Digital Technology Team as a Principal or Sr. Principal DevOps Engineer based out of Baltimore, MD.
Added 22 mins ago
Software Engineer Level 3 or 4 (AHT)
Northrop Grumman
Aurora · Morrisville
…working in a team environment and provide leadership for its implementation. It is critical that you understand the software development life cycle. The Software Engineer will participate…
Added 28 mins ago
Principal GNC Engineer - Tracking & Estimation
Mavensoft Technologies, LLC.
Chandler, AZ
Tittle : Guidance Navigation Control Engineer III
Added 43 mins ago
Principal Network Engineer - Routing & Switching
LEIDOS, INC.
Odenton, MD
Leidos is seeking a Principal Network Engineer specializing in routing and switching to serve as the senior technical authority for the routed and switched enterprise. The role is…
Added 43 mins ago
Principal Network Engineer - Wireless
LEIDOS, INC.
Odenton, MD
Leidos is seeking a Principal Network Engineer – Wireless to lead engineering, deployment, and modernization of a large-scale, geographically distributed enterprise wireless network…
Added 1 hour ago
Senior/Principal Systems Modeling & Simulation Engineer
Trinzic
Greenbelt, MD
Position SummaryKBR is seeking a Senior/Principal Systems Modeling & Simulation/Systems Engineer to join the Structural Engineering and Analysis team supporting NASA Goddard Space Flight…
Added 1 hour ago
Product Design Engineer, Data Center Engineering, Electrical Products and Services
Amazon Data Services, Inc.
Austin, TX · Atlanta, GA · Columbus, OH · Herndon, VA · Chicago, IL
We are seeking a Design Engineer with an Electrical Engineering background with hands-on experience in new product design and development of electrical power distribution equipment and…
Added 1 hour ago
XE
Natural Gas Materials Engineer (Entry, Staff, Senior, or Principal)
Xcel Energy Services Inc
St Paul, MN
- $70,000 to $156,600 USD / year
The below job summary and responsibilities reflect the entry engineer level role. The successfully chosen candidate will be placed at a level that is commensurate with their skills and…
Added 1 hour ago
Senior Principal Advanced Manufacturing Engineer, Laser Processing & Precision Joining – NMPH – Fridley, MN (Onsite)
MED Medtronic Inc
Fridley, MN
The Senior Principal Advanced Manufacturing Engineer will provide technical leadership for advanced manufacturing process development supporting implantable medical devices. This role will…
Added 2 hours ago
VB
Principal Network Security Defense Engineer - CALEA
Verizon Business Ntwk Srvs LLC
Ashburn, VA · Southlake, TX · Cary, NC · Branchburg, NJ
- $120,500 to $231,000 USD / year
The GN&T Network Security team is looking for a highly motivated and experienced Principal Engineer to be a technical leader in the Security Defense organization. The Defense teams are…
Added 2 hours ago
Principal Analog/Mixed-Signal ASIC Design Engineer
Taara
Sunnyvale, CA
Taara is seeking a Principal Analog/Mixed-Signal ASIC Design Engineer to work on the next generation of co-integrated electronic and photonic modules. You will be part of an R&D team…
Added 2 hours ago
Principal Architect - Application Development
Farmers Insurance Careers
United States
The Principal Architect, Application Development is the senior technical authority for how Farmers designs, builds, and evolves its business applications. Accountable for application…
Added 2 hours ago
SI
Software Engineering, AI Systems (PMTS)
Salesforce, Inc.
CA · IL · MA · WA
- $197,300 to $344,700 USD / year
…turning discoveries into reusable product capabilities. As a Principal Engineer, you’ll remain hands-on while shaping architecture across our agent and backend systems, owning critical…
Added 2 hours ago
O
Principal Network Engineer
Oracle
Abilene, TX · TX
- $114,600 to $234,600 USD / year
Cloud Networking Implementation and Operations:
Added 3 hours ago
Senior Principal Systems Engineer *
CORP-Corporate Office
United States
Northrop Grumman’s Space Systems Sector is seeking a Systems Engineer – Level 4 to join our team in our Fairfax, VA or Morrisville, NC locations.
Added 3 hours ago
Principal or Sr. Principal DevOps Engineer
CORP-Corporate Office
United States
Northrop Grumman Mission Systems is looking for you to join our Software and Digital Technology Team as a Principal or Sr. Principal DevOps Engineer based out of Baltimore, MD.
Added 3 hours ago
Principal/ Sr Principal Mission Assurance Engineer - 18208
CORP-Corporate Office
United States
Northrop Grumman Defense Systems is seeking a Principal/Sr. Principal Mission Assurance Engineer to support the SLCM-N Program Quality & Mission Assurance Team in Huntsville, AL. This role…
Added 3 hours ago
Sr Principal Engineer Systems
CORP-Corporate Office
United States
Basic Qualifications for a Senior Principal Systems Engineer:

Principal Staff Software Engineer, Data Infrastructure

Mountain View, CA, United States

The pay range for this role is $231,000 to $378,000.

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Job details

Pay: The pay range for this role is $231,000 to $378,000.
Experience: 10+ years of industry experience in software engineering, database systems, distributed systems, or related infrastructure areas.
Posting language: English
Posted: Nov 4, 2026

Original job description

Company Description LinkedIn is the world's largest professional network, built to create economic opportunity for every member of the global workforce. Our products help people make powerful connections, discover exciting opportunities, build necessary skills, and gain valuable insights every day. We're also committed to providing transformational opportunities for our own employees by investing in their growth. We aspire to create a culture that's built on trust, care, inclusion, and fun – where everyone can succeed. Join us to transform the way the world works.

Job Description

At LinkedIn, our approach to flexible work is centered on trust and optimized for culture, connection, clarity, and the evolving needs of our business. The work location of this role is hybrid, meaning it will be performed both from home and from a LinkedIn office on select days, as determined by the business needs of the team. LinkedIn’s Data Infrastructure organization builds and operates the foundational platforms that store, process, and serve data across LinkedIn. The organization spans online relational databases, document stores, and key-value serving systems, as well as offline analytical, streaming, batch processing, and orchestration platforms. These systems power LinkedIn’s products and support the growing demands of AI applications at global scale. We are looking for a Principal Staff Software Engineer with deep expertise in database internals, relational database performance, and large-scale distributed systems. This role will lead database performance and efficiency optimization, with an initial emphasis on relational systems and an opportunity to extend that work across online and offline data platforms. You will work on query planning and execution, indexing, storage efficiency, and application access patterns to improve performance and make better use of LinkedIn’s infrastructure. The ideal candidate brings a deep understanding of online transactional databases and can apply that expertise to offline analytical systems and the convergence of these architectures, including query federation and hybrid transactional and analytical processing (HTAP). This is a highly technical leadership role for a hands-on builder who can set direction and drive implementation across multiple teams. You will partner closely with database, data platform, and application engineers, engage directly with code and design decisions, and turn optimization opportunities into production improvements with company-level impact.

Responsibilities

Set technical direction for database performance and efficiency optimization across LinkedIn’s online and offline data infrastructure.
Lead improvements to database and offline systems, including query planning and execution, indexing, storage, and application access patterns.
Diagnose performance bottlenecks across application, database, and storage layers, and drive improvements in latency, throughput, resource utilization, and infrastructure cost.
Extend optimization approaches across offline analytical, nearline, streaming, and batch systems, identifying opportunities to improve query execution and storage efficiency.
Shape architectures that connect online transactional and offline analytical systems, including query federation and converged data platforms.
Remain hands-on through code and design reviews, performance investigations, and proofs of concept that validate technical approaches.
Make architectural tradeoffs across performance, consistency, availability, reliability, scalability, and cost.
Partner with platform and application teams to translate workload requirements into efficient data access and execution patterns, including emerging AI workloads.
Lead initiatives across teams from problem identification and design through implementation, production rollout, and adoption.
Mentor senior engineers and strengthen engineering practices for database design, performance analysis, and optimization.

Qualifications

Basic Qualifications

BA/BS degree in Computer Science or a related technical field, or equivalent practical experience.
10+ years of industry experience in software engineering, database systems, distributed systems, or related infrastructure areas.
5+ years of experience in an architect, technical lead, or senior technical leadership capacity, driving architecture and technical direction across complex systems or multiple engineering teams.
Experience designing, building, or optimizing production database systems, including relational databases, query execution, indexing, or storage components.
Experience diagnosing and improving database or distributed system performance through changes to query execution, storage, or application access patterns.
Hands-on programming experience and experience leading technically complex initiatives across team or organizational boundaries.

Preferred Qualifications

Master’s or PhD in Computer Science or a related technical field, with experience operating at Principal Staff or equivalent scope.
Deep expertise in database internals, including query optimizers, execution engines, indexing, storage engines, and consistency and availability tradeoffs.
Experience spanning online transactional databases and offline analytical systems, including query federation, HTAP, or relational interfaces over data lake storage.
A track record of delivering measurable improvements in performance, hardware utilization, or infrastructure cost across large production data platforms.
Experience building or optimizing relational and distributed database platforms such as MySQL, PostgreSQL, TiDB, or comparable systems.
Experience with the internals or performance optimization of analytical, streaming, or batch processing platforms such as Spark, Flink, or comparable systems.
Understanding of the performance and storage implications of AI-oriented workloads, including vector embeddings, text search, and inference-related operations.
Demonstrated ability to set technical strategy, align senior engineers and leaders, and drive implementation and adoption across multiple teams while remaining hands-on.

Suggested Skills

Database Systems
Database Performance Optimization
Distributed Systems
Technical Strategy

LinkedIn is committed to fair and equitable compensation practices. The pay range for this role is $231,000 to $378,000. Actual compensation packages are based on several factors that are unique to each candidate, including but not limited to skill set, depth of experience, certifications, and specific work location. This may be different in other locations due to differences in the cost of labor. The total compensation package for this position may also include annual performance bonus, stock, benefits and/or other applicable incentive compensation plans. For more information, visit https://careers.linkedin.com/benefits. Additional Information

Equal Opportunity Statement We seek candidates with a wide range of perspectives and backgrounds and we are proud to be an equal opportunity employer. LinkedIn considers qualified applicants without regard to race, color, religion, creed, gender, national origin, age, disability, veteran status, marital status, pregnancy, sex, gender expression or identity, sexual orientation, citizenship, or any other legally protected class. LinkedIn is committed to offering an inclusive and accessible experience for all job seekers, including individuals with disabilities. Our goal is to foster an inclusive and accessible workplace where everyone has the opportunity to be successful. If you need a Reasonable Accommodation to search for a job opening, apply for a position, or participate in the interview process, connect with us and describe the specific Accommodation requested for a disability-related limitation.

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Documents in alternate formats or read aloud to you
Having interviews in an accessible location
Being accompanied by a service dog
Having a sign language interpreter present for the interview

A request for an accommodation will be responded to within three business days. However, non-disability related requests, such as following up on an application, will not receive a response. LinkedIn will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by LinkedIn, or (c) consistent with LinkedIn's legal duty to furnish information. San Francisco Fair Chance Ordinance Pursuant to the San Francisco Fair Chance Ordinance, LinkedIn will consider for employment qualified applicants with arrest and conviction records.

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Skills

Computer science
Database management systems
Leadership
MySQL
PostgreSQL
Apache Spark

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