Principal Software Engineer Jobs in District of Columbia

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Principal, Development Engineer - Remote

Constellation Energy

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Remote or Raleigh, North Carolina, USA

Full-time

WHO WE ARE As the nation's largest producer of clean, carbon-free energy, Constellation is focused on our purpose: accelerating the transition to a carbon-free future. We have been the leader in clean energy production for more than a decade, and we are cultivating a workplace where our employees can grow, thrive, and contribute. Our culture and employee experience make it clear: We are powered by passion and purpose. Together, we're creating healthier communities and a cleaner planet, and our
Posted 15 days ago | Updated 1 hour ago

Principal Propulsion System Performance Engineer (P4) - Hybrid

RTX Corporation

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Remote or East Hartford, Connecticut, USA

Full-time

Date Posted: 2025-06-25 Country: United States of America Location: PW100: East Hartford 400 Main Street, East Hartford, CT, 06118 USA Position Role Type: Hybrid U.S. Citizen, U.S. Person, or Immigration Status Requirements: This job requires a U.S. Person. A U.S. Person is a lawful permanent resident as defined in 8 U.S.C. 1101(a)(20) or who is a protected individual as defined by 8 U.S.C. 1324b(a)(3). U.S. citizens, U.S. nationals, U.S. permanent residents, or individuals granted refugee or a
Posted 20 days ago | Updated 1 hour ago

Staff Software Engineer, Secure Development Engineering

Airbnb

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Remote

Full-time

Airbnb was born in 2007 when two hosts welcomed three guests to their San Francisco home, and has since grown to over 5 million hosts who have welcomed over 2 billion guest arrivals in almost every country across the globe. Every day, hosts offer unique stays and experiences that make it possible for guests to connect with communities in a more authentic way. The Community You Will Join: Airbnb is built on trust. The Secure Software Development Engineering team is dedicated to ensuring the sec
Posted 9 days ago | Updated 1 hour ago

Principal Engineer - Steam Turbine

ENTRUST Solutions Group

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Remote or Greenville, South Carolina, USA

Full-time

Join ENTRUST's Power Generation group as a fulltime-Principal Engineer - Steam Turbine focused on supporting steam turbines engineering activities. This position offers remote and hybrid schedule options with minimal travel required. ENTRUST Solutions Group Power Generation offers independent third-party engineering solutions to global power providers and plant operations. Power Generation's service offerings cover conventional and renewable power, as well as compliance, encompassing plant conc
Posted 60+ days ago | Updated 1 hour ago

Principal Information Security Engineer

Fifth Third Bank

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Remote

Full-time

Make banking a Fifth Third better We connect great people to great opportunities. Are you ready to take the next step? Discover a career in banking at Fifth Third Bank. Position not available for immigration sponsorship GENERAL FUNCTION: The Principal Information Security Engineer (ISE) is responsible for defining, architecting, delivering, and supporting enterprise security tools in collaboration with the IS and IT teams. This role also involves contributing to a wide range of Information Se
Posted 4 days ago | Updated 1 hour ago

Lead Full Stack Engineer (Bank Tech)

Capital One

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McLean, Virginia, USA

Full-time

Lead Full Stack Engineer (Bank Tech) Do you love building and pioneering in the technology space? Do you enjoy solving complex business problems in a fast-paced, collaborative, inclusive, and iterative delivery environment? At Capital One, you'll be part of a big group of makers, breakers, doers and disruptors, who solve real problems and meet real customer needs. We are seeking Full Stack Software Engineers who are passionate about marrying data with emerging technologies. As a Capital One Le
Posted 4 hours ago | Updated 3 hours ago

ARCS Solution Engineer Senior - Principal

American Electric Power

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Remote or Columbus, Ohio, USA

Full-time

Job Posting End Date 07-25-2025 Please note the job posting will close on the day before the posting end date Job Summary Part of a larger team delivering high quality technology solutions to the business. Design, develop and install software solutions. Build high-quality, innovative and fully performing software in compliance with internal architecture, development & design standards & best practices. Design, modify, develop, write, implement and troubleshoot software programming applications.
Posted 32 days ago | Updated 1 hour ago

Principal Substation P&C Engineer

ENTRUST Solutions Group

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Remote

Full-time

Join Our Team as a P&C Engineer! Are you passionate about power systems and looking to make a significant impact in the field of protective relaying and control systems? We have an exciting opportunity for you to join our dynamic team! What You'll Do: Stay Ahead: Keep up to date with NERC and NPCC protection and control standards.Innovate: Engineer protective relay and control systems, calculate relay settings, create relay control logic, and analyze relay operations for transmission/distribut
Posted 59 days ago | Updated 1 hour ago

Staff, Software Engineer - Front-End UI

Walmart Inc.

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Remote or Bentonville, Arkansas, USA

Full-time

Position Summary Walmart's Enterprise Business Services (EBS) is a powerhouse of seven exceptional teams delivering world-class technology solutions and services making a profound impact at every level of Walmart. As a key part of Walmart Global Tech, our teams set the bar for operational excellence and leverage emerging technology to support millions of customers, associates, and stakeholders worldwide. Joining EBS means embarking on a journey of limitless growth, relentless innovation, and the
Posted 1 hour ago

Principal RF Engineer

Kratos Defense and Security Solutions, Inc.

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Remote

Full-time

Job Description Kratos Microwave, Inc., a Kratos' company, is looking for a Principal RF Engineer. Kratos Defense & Security Solutions, Inc. (NASDAQ:KTOS) develops and fields transformative, affordable technology, platforms, and systems for United States National Security related customers, allies, and commercial enterprises. At Kratos, we encourage an entrepreneurial spirit balanced with discipline. We work hard, and take care of our customers, employees and families. Recognized as thought l
Posted 40 days ago | Updated 10 hours ago

Lead Engineer, Software Development - DXP

tax.com

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Remote or Dallas, Texas, USA

Full-time

Why Ryan? Hybrid Work OptionsAward-Winning CultureGenerous Personal Time Off (PTO) Benefits14-Weeks of 100% Paid Leave for New Parents (Adoption Included)Monthly Gym Membership Reimbursement OR Gym Equipment ReimbursementBenefits Eligibility Effective Day One401K with Employer MatchTuition Reimbursement After One Year of ServiceFertility Assistance ProgramFour-Week Company-Paid Sabbatical Eligibility After Five Years of Service Ryan, LLC is an award-winning global tax firm that liberates its c
Posted 27 days ago | Updated 24 days ago

(USA) Staff, Software Engineer

Walmart Inc.

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Remote or Denver, Colorado, USA

Full-time

Position Summary Are you passionate about blending cloud infrastructure with financial acumen? Join our Walmart/VIZIO Team as a Cloud FinOps Automation Engineer, where you'll leverage your skills to optimize cloud spend, drive automation, and collaborate across teams to align cloud usage with business goals. This is your opportunity to make a significant impact at the intersection of technology and finance. What you'll do About the Team The Walmart/VIZIO Team is dedicated to enhancing cloud i
Posted 23 days ago | Updated 1 hour ago

Principal ASIC Verification Engineer (32625)

Myticas LLC

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Remote or Ottawa, Ontario, Canada

Contract

Our client is seeking a Principal ASIC Verification Engineer to join a high-performing team developing leading-edge technology for next-generation optical networks and data centers. Responsibilities: Drive the development of verification infrastructure using SystemVerilog and UVM. Create protocol/traffic generators, checkers, and testbenches aligned with functional and standards-based requirements. Define and implement test plans at the block and sub-chip levels for advanced digital ASICs. De
Easy Apply
Posted 3 days ago | Updated 10 hours ago

Lead Software Engineer (Hybrid NYC)

T. Rowe Price

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Remote or New York, New York, USA

Full-time

At T. Rowe Price, we identify and actively invest in opportunities to help people thrive in an evolving world. As a premier global asset management organization with more than 85 years of experience, we provide investment solutions and a broad range of equity, fixed income, and multi-asset capabilities to individuals, advisors, institutions, and retirement plan sponsors. We take an active, independent approach to investing, offering our dynamic perspective and meaningful partnership so our clien
Posted 23 days ago | Updated 1 hour ago

Lead Software Engineer (Hybrid NYC)

T. Rowe Price

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Remote or New York, New York, USA

Full-time

Requisition Number: 77046 Position Title: External Description: About this Position At T. Rowe Price, Engineers are pivotal in shaping the future of financial services. Collaborating closely with our business partners, they craft client experiences that redefine investment strategies. We are seeking a talented Lead Software Engineer to join our Technology Development Center in Union Square, NYC. Are you passionate about tackling complex business, data, and technical challenges? You will lead an
Posted 24 days ago | Updated 1 hour ago

(USA) Staff, Software Engineer

Walmart Inc.

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Remote or Seattle, Washington, USA

Full-time

Position Summary Are you a seasoned software engineer looking to make a significant impact? Join Walmart/VIZIO as a Staff Software Engineer in our Content Services team. This is a unique opportunity to work on cutting-edge technology, shape our software solutions, and help drive the future of our digital content. What you'll do About the Team: The Content Services team at Walmart/VIZIO is dedicated to delivering top-tier digital content experiences. We operate with a focus on innovation and sc
Posted 36 days ago | Updated 1 hour ago

Principal FPGA Design Engineer

Draper

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Remote or Cambridge, Massachusetts, USA

Full-time

Overview: Draper is an independent, nonprofit research and development company headquartered in Cambridge, MA. The 2,000+ employees of Draper tackle important national challenges with a promise of delivering successful and usable solutions. From military defense and space exploration to biomedical engineering, lives often depend on the solutions we provide. Our multidisciplinary teams of engineers and scientists work in a collaborative environment that inspires the cross-fertilization of ideas
Posted 60+ days ago | Updated 1 hour ago

Principal Infrastructure Engineer

Memorial Sloan Kettering Cancer Center

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Remote or New York, New York, USA

Full-time

Pay Range $164,100.00-$270,900.00 Company Overview The people of Memorial Sloan Kettering Cancer Center (MSK) are united by a singular mission: ending cancer for life. Our specialized care teams provide personalized, compassionate, expert care to patients of all ages. Informed by basic research done at our Sloan Kettering Institute, scientists across MSK collaborate to conduct innovative translational and clinical research that is driving a revolution in our understanding of cancer as a disea
Posted 45 days ago | Updated 1 hour ago

Principal Kernel Engineer

Request Technology, LLC

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Remote

Full-time

Principal Kernel Engineer Salary: Open + Bonus + Stock Options Location: Remote *We are unable to provide sponsorship for this role* Qualifications Writes high-quality multithread-safe code in C++ in both kernel-mode and user-modeDevelops high-quality code in Rust or a strong desire and capacity to learn quickly (Rust)Has shipped at least one production quality driver for Windows NTStrong knowledge of Win32 APIs and NT kernel internalsDebugs memory corruption issues and improves end-to-end syste
Easy Apply
Posted 47 days ago | Updated 3 days ago

Staff Software Engineer - Fullstack

ServiceNow, Inc.

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Remote or San Diego, California, USA

Full-time

Company Description It all started in sunny San Diego, California in 2004 when a visionary engineer, Fred Luddy, saw the potential to transform how we work. Fast forward to today - ServiceNow stands as a global market leader, bringing innovative AI-enhanced technology to over 8,100 customers, including 85% of the Fortune 500 . Our intelligent cloud-based platform seamlessly connects people, systems, and processes to empower organizations to find smarter, faster, and better ways to work. But thi
Posted 11 days ago | Updated 1 hour ago