Principal, Software Engineer Jobs in Washington

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Senior Principal Consultant - Security A&A Engineer (Clearance Required)

Oracle Corporation

•

Reston, Virginia, USA

Full-time

Job Description Must current hold and have the ability to maintain a TS/SCI with Poly. We are seeking a highly experienced and motivated Information Systems Security Analyst to join a new and exciting task order. The ideal candidate will play a critical role in assisting with driving all assessment & authorization (A&A) efforts for a new data platform. Working along side a team of technical engineers, this role requires both cybersecurity experience and technical saavy. In this role, you will
Posted 13 days ago | Updated moments ago

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
Posted 25 days ago | Updated moments ago

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 On
Posted 37 days ago | Updated moments ago

Lead Software Engineer, Back End

Capital One

•

McLean, Virginia, USA

Full-time

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 Capital One
Posted 38 days ago | Updated moments ago

Lead Software Engineer (Manager IC), Back End (Bank Tech)

Capital One

•

McLean, Virginia, USA

Full-time

Lead Software Engineer (Manager IC), 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 techno
Posted 32 days ago | Updated moments ago

Lead Software Engineer, Full Stack (Bank Tech)

Capital One

•

McLean, Virginia, USA

Full-time

Lead Software Engineer, Full Stack (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 Capit
Posted 57 days ago | Updated moments ago

Principal Engineer

Stanley Black and Decker

•

Remote or Towson, Maryland, USA

Full-time

Principal Engineer--Construction Technology Denver, CO, United States Come make the world and accelerate your success. It takes great people to achieve greatness. People with a sense of purpose and integrity. People with a relentless pursuit of excellence. People who care about making things better For Those Who Make The World . Sound like you? Join our top-notch team of approximately 48,000 diverse and high-performing professionals globally who are making their mark on some of the world's mos
Posted 18 days ago | Updated moments ago

Principal Cybersecurity Engineer

NuLeap

•

Remote or US

Third Party

Job Summary (List Format): - Lead the design and implementation of secure, scalable, and high-performance cloud-based systems. - Architect and develop backend systems using Rust (Tokio, Actix, Axum, Rocket) and Scala (Akka, ZIO, Cats, Play). - Ensure secure execution environments utilizing WebAssembly (WASM). - Employ extensive AWS services (Lambda, ECS, S3, API Gateway, CloudFront, DynamoDB, GuardDuty, WAF, Security Hub, KMS) for cloud infrastructure and security. - Implement and enforce AP
Posted 59 days ago | Updated 4 days ago

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
Posted 50 days ago | Updated moments ago

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

Capital One

•

McLean, Virginia, USA

Full-time

Lead Software Engineer, Back End ( Python, Java, 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 technologi
Posted 60+ days ago | Updated moments ago

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
Posted 60+ days ago | Updated moments ago

Lead Software Engineer - Intelligence Community Applications

General Dynamics

•

Fairfax, Virginia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: Software Engineering Job Qualifications: Skills: Agile Methodology, Application Development, Software Solutions, Structured Query Language (SQL), Technical Leadership Certifications: None Experience: 8 + years of related experience ship Required: Yes Job Description: Software Engineer Sr Advisor Deliver simpl
Posted 9 days ago | Updated moments ago

Principal Systems Engineer

Leidos

•

Fort Meade, Maryland, USA

Full-time

Description Leidos has a new and exciting opportunity for a Principal System Engineer 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 i
Posted 5 days ago | Updated 10 hours ago

Senior Lead Software Engineer, Full Stack (Bank Tech)

Capital One

•

McLean, Virginia, USA

Full-time

Senior Lead Software Engineer, Full Stack (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
Posted 57 days ago | Updated moments ago

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
Posted 31 days ago | Updated moments ago

Big Data Engineer Principal

SAIC

•

Chantilly, Virginia, USA

Full-time

Job ID: 2507774 Location: CHANTILLY, VA, US Date Posted: 2025-07-24 Category: Information Technology Subcategory: Big Data Engineer Schedule: Full-time Shift: Day Job Travel: Yes, 75 % of the Time Minimum Clearance Required: Top Secret Clearance Level Must Be Able to Obtain: TS/SCI Potential for Remote Work: Yes Description SAIC is actively looking for a highly skilled and motivated Principal Data Engineer to become a part of our dynamic team. Within this collaborative environment, th
Posted 9 days ago | Updated 10 hours ago

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
Posted 45 days ago | Updated moments ago

Lead Java Software Engineer

ALTA IT Services

•

Reston, Virginia, USA

Full-time

Lead Java Software Engineer 12 month+ Contract Hybrid, Reston VA Candidates must be local to the DMV area Hourly Rate: $75/hr. Range, benefits available ALTA IT Services is staffing a 12-month+ contract, Lead Java Software Engineering opening to support a leading, Reston, VA-based health insurance customer. This is a hybrid position, considering candidates who currently reside in the DMV area only. This is 60% Backend, 40% front-end development. Must have: Java, microservices, Spring framework,
Easy Apply
Posted 2 days ago | Updated 9 hours ago

Lead Java Software Engineer

System One

•

Reston, Virginia, USA

Contract

Lead Java Software Engineer 12 month+ Contract Hybrid, Reston VA Candidates must be local to the DMV area Hourly Rate: $75/hr. Range, benefits available ALTA IT Services is staffing a 12-month+ contract, Lead Java Software Engineering opening to support a leading, Reston, VA-based health insurance customer. This is a hybrid position, considering candidates who currently reside in the DMV area only. This is 60% Backend, 40% front-end development. Must have: Java, microservices, Spring framework,
Easy Apply
Posted 2 days ago | Updated 10 hours ago

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
Posted 60+ days ago | Updated moments ago