principal software engineer Jobs in district of columbia

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Principal Integration Engineer

Leidos

Chantilly, Virginia, USA

Full-time

Description Looking for an opportunity to make an impact? At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. The Leidos National Security Sector (NSS) combines technology-enabled services and mission software capabi

Lead Software Engineer, Back End (Bank Tech)

Capital One

McLean, Virginia, USA

Full-time

Lead Software Engineer, Back End (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 love to solve real problems and meet real customer needs. We are seeking Back End Software Engineers who are passionate about marrying data with emerging technologies. As a

Senior Lead Software Engineer, Back End

Capital One

McLean, Virginia, USA

Full-time

Senior Lead Software Engineer, Back End 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 love to solve real problems and meet real customer needs. We are seeking Back End Software Engineers who are passionate about marrying data with emerging technologies. As a Capit

Senior Lead Software Engineer, Back End

Capital One

McLean, Virginia, USA

Full-time

Senior Lead Software Engineer, Back End 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 love to solve real problems and meet real customer needs. We are seeking Back End Software Engineers who are passionate about marrying data with emerging technologies. As a Capit

Senior Lead Software Engineer, Full Stack

Capital One

McLean, Virginia, USA

Full-time

Senior Lead Software Engineer, Full Stack 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 O

Lead Software Engineer (Java, Python, AWS)

Capital One

McLean, Virginia, USA

Full-time

Lead Software Engineer (Java, Python, AWS) 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 love to solve real problems and meet real customer needs. We are seeking Back End Software Engineers who are passionate about marrying data with emerging technologies. As a C

Lead Software Engineer, Back End (Enterprise Platforms Technology)

Capital One

McLean, Virginia, USA

Full-time

Lead Software Engineer, Back End (Enterprise Platforms Technology) 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 love to solve real problems and meet real customer needs. We are seeking Back End Software Engineers who are passionate about marrying data with emergi

Lead Software Engineer, Full Stack (Java/Python/AWS)

Capital One

McLean, Virginia, USA

Full-time

Lead Software Engineer, Full Stack (Java/Python/AWS) 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

Senior Lead Software Engineer, Back End (Java/Python/AWS)

Capital One

McLean, Virginia, USA

Full-time

Senior Lead Software Engineer, Back End (Java/Python/AWS) 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 love to solve real problems and meet real customer needs. We are seeking Back End Software Engineers who are passionate about marrying data with emerging techno

Staff Software Engineer

Oceaneering

Maryland, USA

Full-time

Company Profile Oceaneering Technologies (OTECH) develops, manufactures, and operates customized marine systems, shipboard equipment, subsea vehicles, and engineered solutions for commercial and U.S. military vessels. Oceaneering Aerospace and Defense Technologies (AdTech) delivers solutions that enable humans to work safely and effectively in harsh environments - from underwater to the outer reaches of space. Our innovative solutions support the development and application of practical, cost-

Principal Systems Engineer – Satellite Ground Antenna & Fleet Management Lead

Iridium Satellite LLC

Reston, Virginia, USA

Full-time

Company Overview Iridium is an award-winning and innovative satellite communications company with bragging rights to the only network that offers voice and data connectivity anywhere in the world. For over 20 years, Iridium's unique network and services have supported critical communications needs for individuals, businesses, and the evolving Internet of Things. At Iridium, we understand the importance of staying connected and the limitations of traditional communications networks. People across

Lead Software Engineer, Full Stack

Capital One

McLean, Virginia, USA

Full-time

Lead Software Engineer, Full Stack 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 Lead

Principal Cyber Security Engineer

ManTech

Chantilly, Virginia, USA

Full-time

ManTech is seeking a motivated, career and customer-oriented Principal Cyber Security Engineer to join our team in the Chantilly, VA. Responsibilities include but are not limited to: Provide IA security requirements to update system requirement documentsCoordinate IA matters with other directorates and external partners as necessaryPerform, or review, technical security assessments of computing environments to identify points of vulnerability, non-compliance with established Information Assu

Principal Cyber Security Engineer

ManTech

Chantilly, Virginia, USA

Full-time

ManTech is seeking a motivated, career and customer-oriented Principal Cyber Security Engineer to join our team in the Chantilly, VA. Responsibilities include but are not limited to: Provide IA security requirements to update system requirement documentsCoordinate IA matters with other directorates and external partners as necessaryPerform, or review, technical security assessments of computing environments to identify points of vulnerability, non-compliance with established Information Assuranc

Lead Software Engineer, Site Reliability

Capital One

McLean, Virginia, USA

Full-time

Lead Software Engineer, Site Reliability 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 love to solve real problems and meet real customer needs. We are seeking DevOps Engineers who are passionate about marrying data with emerging technologies to join our team. As

Principal Cyber Security Engineer

ManTech

Chantilly, Virginia, USA

Full-time

Mantech seeks a motivated and customer-focused Principal Cyber Security Engineer to join our team in Chantilly, VA. In this role, you will help design, implement, and sustain mission-driven cybersecurity solutions that enable secure enterprise operations. You will provide technical leadership and hands-on expertise in supporting Comply-to-Connect (C2C) systems across both classified and unclassified environments. Responsibilities include but are not limited to: Engineering, designing, implement

Principal Cyber Security Engineer

ManTech

Chantilly, Virginia, USA

Full-time

ManTech seeks a motivated, career and customer-oriented Principal Cyber Security Engineer to join our team in Chantilly, VA. This role offers the opportunity to support a critical cyber mission by maintaining and enhancing perimeter protection systems in a dynamic environment. Responsibilities include but are not limited to: You will be responsible for operations and maintenance of deployed perimeter protection solutions with a focus on cybersecurity.You will engineer and deploy new capabilitie

Big Data Engineer Principal

SAIC

Reston, Virginia, USA

Full-time

Job ID: 2507187 Location: RESTON, VA, US Date Posted: 2025-07-08 Category: Information Technology Subcategory: Metrics and Data Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: None Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description Big Data Engineer Principal to work in Reston VA : Roles and Responsibilities: Develop and design the application data. Develop and build optimal databases using an agile-like environment to sto

Lead Software Engineer, DevOps (Enterprise Platforms Technology)

Capital One

McLean, Virginia, USA

Full-time

Lead Software Engineer, DevOps (Enterprise Platforms Technology) 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 love to solve real problems and meet real customer needs. We are seeking DevOps Engineers who are passionate about marrying data with emerging technologi

Principal Cyber Security Engineer

ManTech

Chantilly, Virginia, USA

Full-time

Mantech seeks a motivated and customer-focused Principal Cyber Security Engineer to join our team in Chantilly, VA. In this role, you will help design, implement, and sustain mission-driven cybersecurity solutions that enable secure enterprise operations. You will provide technical leadership and hands-on expertise in supporting Comply-to-Connect (C2C) systems across both classified and unclassified environments. Responsibilities include but are not limited to: Engineering, designing, implement