principal engineer Jobs in washington

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Staff Software Engineer, Search Infrastructure

Airbnb

•

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 a mission-driven company dedicated to helping create a world where anyone can belong anywhere. It
Posted 20 days ago | Updated 9 hours ago

Lead Frontend / Angular Developer

Virtuous Tech Inc

•

McLean, Virginia, USA

Contract

Lead Frontend / Angular Developer Location: McLean, VA Duration: 12-14 months Job Description: Angular 14 or later, Ngrx, RxJS JavaScript, NodeJS, GitHub, understanding of end to end test and unit test Role Info: Hands on Sr. Frontend / Angular Developer role with strong Angular, Typescript, Ngrx, RxJS, Javascript, NodeJS, HTML, & CSS background Front end development Managing existing components and building new components using Angular 14 NodeJS 2 Weeks sprint cycle Unit testing using Cyp
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Posted 10 days ago

Lead Baseline Security Engineer

Booz Allen Hamilton

•

Washington, District of Columbia, USA

Full-time

Job Number: R0223795 Baseline Security Engineer, Lead Key Role: Develop and implement security solutions in alignment with security strategy. Maintain an awareness of market and technology trends to bring best of breed solutions to the client. Apply leading-edge principles, theories, and concepts and contribute to the development of new principles and concepts. Work on unusually complex problems and provide highly innovative solutions. Operate with substantial latitude for unreviewed action or
Posted 7 days ago | Updated 10 hours ago

Lead Java AWS Developer

eSolutionsFirst, LLC

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McLean, Virginia, USA

Full-time

Job Summary: We are seeking a highly skilled and motivated Java/AWS Lead with over 10 years of experience in enterprise software development. The ideal candidate will have strong expertise in Java, Spring Boot, and cloud-native development on AWS, along with a deep understanding of modern software architecture. Preference will be given to candidates with hands-on experience or strong interest in AI/ML, Python, and Large Language Models (LLMs). Key Responsibilities: Lead end-to-end design, develo
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Posted 16 days ago | Updated 10 days ago

Lead Frontend / Angular Developer

MethodHub

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McLean, Virginia, USA

Contract

Lead Frontend / Angular Developer Location: McLean, VA Duration: 12-14 months Job Description: Angular 14 or later, Ngrx, RxJS JavaScript, NodeJS, GitHub, understanding of end to end test and unit test Role Info: Hands on Sr. Frontend / Angular Developer role with strong Angular, Typescript, Ngrx, RxJS, Javascript, NodeJS, HTML, & CSS background Front end development Managing existing components and building new components using Angular 14 NodeJS 2 Weeks sprint cycle Unit testing using Cy
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Posted 13 days ago | Updated 5 hours ago

Lead, Windows System Engineer

Mastercard

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Arlington, Virginia, USA

Full-time

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest po
Posted 12 days ago | Updated 9 hours ago

Lead Cyber AI Engineer

Booz Allen Hamilton

•

McLean, Virginia, USA

Full-time

Job Number: R0223271 Cyber AI Engineer, Lead The Opportunity: At Booz Allen Hamilton, we are pushing the boundaries of innovation through our emerging product business. We are seeking a S enior Cyber AI Engineer to join our internal product engineering team and lead the creation of a transformative AI-driven cybersecurity product. This role is for a visionary "10x-type" engineer who can develop novel intellectual property (IP) that drives substantial ARR and redefines the market. You'll collabor
Posted 16 days ago | Updated 10 hours ago

Angular Developer /Lead Front End

NimbusAITech LLC

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McLean, Virginia, USA

Contract

Lead Frontend / Angular Developer Location: McLean, VA Duration: 12-14 months Ex-Capital One Preferred Job Description: Angular 14 or later, Ngrx, RxJS JavaScript, NodeJS, GitHub, understanding of end to end test and unit test Role Info: Hands on Sr. Frontend / Angular Developer role with strong Angular, Typescript, Ngrx, RxJS, Javascript, NodeJS, HTML, & CSS background Front end development Managing existing components and building new components using Angular 14 NodeJS 2 Weeks sprint cycle U
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Posted 12 days ago | Updated 12 days ago

Lead Oracle Database Engineer

Accenture LLP

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Washington, District of Columbia, USA

Full-time

At Accenture Federal Services, nothing matters more than helping the US federal government make the nation stronger and safer and life better for people. Our 13,000+ people are united in a shared purpose to pursue the limitless potential of technology and ingenuity for clients across defense, national security, public safety, civilian, and military health organizations. Join Accenture Federal Services, a technology company and part of global Accenture, to do work that matters in a collaborative
Posted 59 days ago | Updated 9 hours ago

Lead AI Solutions Engineer

Booz Allen Hamilton

•

Washington, District of Columbia, USA

Full-time

Job Number: R0223481 AI Solutions Engineer, Lead The Opportunity: AI is no longer just a research concept - it's becoming an essential part of how complex enterprises operate, compete, and deliver value. We're looking for engineers who are eager to work at the intersection of AI innovation and real-world system integration. You'll help architect, build, and deploy intelligent, agentic solutions that work across legacy infrastructure, modern platforms, and stakeholder needs. In this role, you'l
Posted 13 days ago | Updated 10 hours ago

Staff SW Engineer- ServiceNow/ITOM

Visa Inc.

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Ashburn, Virginia, USA

Full-time

Company Description Visa is a world leader in payments and technology, with over 259 billion payments transactions flowing safely between consumers, merchants, financial institutions, and government entities in more than 200 countries and territories each year. Our mission is to connect the world through the most innovative, convenient, reliable, and secure payments network, enabling individuals, businesses, and economies to thrive while driven by a common purpose - to uplift everyone, everywhe
Posted 48 days ago | Updated 9 hours ago

Sr. System Administrator TS/SCI Poly

Leidos

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Annapolis, Maryland, USA

Full-time

Leidos has a new and exciting opportunity for a System Administrator in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting,
Posted 17 days ago | Updated 9 hours ago

Sr. Systems Administrator TS/SCI Poly

Leidos

•

Annapolis, Maryland, USA

Full-time

Leidos has a new and exciting opportunity for a System Administrator in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting,
Posted 17 days ago | Updated 9 hours ago

Lead React Developer - No C2C

FutureTech Consultants LLC

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Remote

Contract

Job Role: Lead ReactJS Developer Job Location: Remote - USA Type: 6+ months KEY SKILLS: ReactJS, Redux, Webpack, HTML, CSS, Leadership, API, Micro-frontend Key Responsibilities:Lead, mentor, and manage a team of React developers, fostering a culture of collaboration and continuous improvement.Architect, design, and develop high-quality, scalable, and maintainable web applications using React.js.Spearhead the development of complex, interactive user interfaces, leveraging your expertise in React
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Posted 2 days ago

* Senior Informatica MDM Lead/Developer - Product & Customer Domains *

Kellton

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Remote

Third Party, Contract

Kellton Tech is a full-service software development company, offering end-to-end IT solutions, strategic technology consulting and product development services in Web, SMAC (Social, Mobile, Analytics, Cloud), ERP-BPM, and IoT space Our methodology of inventing infinite possibilities with technology helps us develop best in-class and cost effective solutions for our clients. Currently Kellton Tech is looking for talented resources for one of our listed client. Below are the position details Titl
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Posted 3 days ago | Updated 1 hour ago

Principal User Interface Developer 25k Sign on Bonus

Leidos

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Columbia, Maryland, USA

Full-time

Leidos has a new and exciting opportunity for a Principal User Interface Developer in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immed
Posted 60+ days ago | Updated 9 hours ago

Java Developer Principal

SAIC

•

Ashburn, Virginia, USA

Full-time

Job ID: 2508446 Location: ASHBURN, VA, US Date Posted: 2025-08-07 Category: Software Subcategory: SW Engineer Schedule: Full-time Shift: Day Job Travel: Yes, 10 % of the Time Minimum Clearance Required: None Clearance Level Must Be Able to Obtain: Public Trust Potential for Remote Work: Yes Description Position Summary We are currently seeking a motivated, career and customer oriented Java Backend Developer to join our team to begin an exciting and challenging career in Ashburn, VA. J
Posted 5 days ago | Updated 7 hours ago

Gloo Envoy API Gateway Lead Developer /Architect

Intelliswift Software Inc

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Remote or Alpharetta, Georgia, USA

Full-time

Must Have skills: Gloo Gateway Any other Envoy-based API Gateway Experience Java Programming React Kubernetes & Container Orchestration Microservices GitOps & Configuration Management JD: Job Title: Gloo Envoy API Gateway Lead Developer /Architect Position Overview: We are seeking a talented and motivated Developer to join our team in building a new API Gateway Platform. The ideal candidate will have experience in developing self-service tools and abstractions for onboarding new APIs, as well as
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Posted 36 days ago | Updated 5 days ago

Lead Engineer - Stores & Supply Chain

Target Corporation

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Remote or Brooklyn Park, Minnesota, USA

Full-time

The pay range is $128,000.00 - $231,000.00 Pay is based on several factors which vary based on position. These include labor markets and in some instances may include education, work experience and certifications. In addition to your pay, Target cares about and invests in you as a team member, so that you can take care of yourself and your family. Target offers eligible team members and their dependents comprehensive health benefits and programs, which may include medical, vision, dental, life
Posted 32 days ago | Updated 9 hours ago

Reference Data - Software Lead Developer (Vice President)

Citi

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Remote or Tampa, Florida, USA

Full-time

Citigroup Reference data management team is seeking Software Lead Developer to join Information Service Group for a hands-on role in design, build and maintenance of various UI enterprise solutions based on full Java/J2EE stack technologies. The Lead Software Developer (Applications Development Technology Lead Analyst - C13) is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overa
Posted 10 days ago | Updated 9 hours ago