Senior Software Engineer Jobs in Ashburn, VA

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Senior Software Engineer

Dexian DISYS

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McLean, Virginia, USA

Contract

FULLY REMOTE - EASTERN TIME ZONE HOURS - EST-BASED PREFERRED Job Description Senior Software Engineer Basic Qualifications To be considered for this position, you must minimally meet the knowledge, skills, and abilities listed below: Proficient in DCL (Digital Command Language) scripting and RMS (OpenVMS Record Management System - Indexed files)" Bachelor's degree in software engineering, computer science, or similar field Minimum 8 to 10 years' experience in software engineering Demonstrated s
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Posted 22 days ago | Updated 2 hours ago

Senior Software Engineer

RTX Corporation

•

Sterling, Virginia, USA

Full-time

Date Posted: 2025-06-25 Country: United States of America Location: VA542: 22260 Pacific Blvd, Dulles 22260 Pacific Boulevard Building CC4, Sterling, VA, 20166-6916 USA Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required.Security Clearance: DoD Clearance: Secret Raytheon Company Managed by Collins Aerospace Collins Aerospace, an RTX company, is a leader in technolo
Posted 2 days ago | Updated 1 hour ago

Senior Software Engineer

Booz Allen Hamilton

•

Herndon, Virginia, USA

Full-time

Job Number: R0221722 Software Engineer, Senior The Opportunity: As a software engineer, you can resolve a problem with a complete end-to-end solution in a fast, agile environment. If you're looking for the chance to not just develop software but to create a system that will make a difference, we need you on our team. We're looking for an experienced engineer like you with the skills needed to develop software and systems from vision to production-ready. This role is more than just coding. As a s
Posted 5 days ago | Updated 2 hours ago

Senior Software Engineer

NNData

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Remote or Reston, Virginia, USA

Full-time

Software/Systems Architect/Engineer NNData Corporation is seeking a cleared Computer Software/Systems Architect/Engineer to support a government intelligence agency contract. Design and execute the technical implementation for infrastructure and cloud computing services. Deliver solution that aligns with the customer s business needs and requirements. Provide design recommendations and assistance to solution deployment team members. Assist in the development of detailed project specifications an
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Posted 8 days ago

Senior Software Engineer - AWS

Fannie Mae

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Remote or Reston, Virginia, USA

Full-time

At Fannie Mae, the inspiring work we do helps make a home a possibility for millions of homeowners and renters. Every day offers compelling opportunities to impact the future of the housing industry while being part of a collaborative team thriving in an energizing environment. Here, you will grow your career and help create access toaffordable housing finance. Job Description As a valued colleague on our team, you will contribute to developing data infrastructure and pipelines to capture, int
Posted 7 days ago | Updated 1 day ago

Senior Software Engineer - CTJ - Poly

Microsoft Corporation

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Reston, Virginia, USA

Full-time

Security represents the most critical priorities for our customers in a world awash in digital threats, regulatory scrutiny, and estate complexity. Microsoft Security aspires to make the world a safer place for all. We want to reshape security and empower every user, customer, and developer with a security cloud that protects them with end to end, simplified solutions. The Microsoft Security organization accelerates Microsoft's mission and bold ambitions to ensure that our company and industry i
Posted 7 days ago | Updated 1 hour ago

Senior Software Engineer Node/React- Remote

ICF

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Remote or Reston, Virginia, USA

Full-time

*We are open to supporting 100% remote work anywhere within the continental US* ICF is a mission-driven company filled with people who care deeply about improving the lives of others and making the world a better place. Our core values include Embracing Difference; we seek candidates who are passionate about building a culture that encourages, embraces, and hires dimensions of difference. Our Health Engineering Solutions (HES) team works side by side with customers to articulate a vision for s
Posted 1 hour ago

Senior Software Engineer, Intelligence Systems

Aduril Industries

•

Reston, Virginia, USA

Full-time

Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. By bringing the expertise, technology, and business model of the 21st century's most innovative companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril's family of systems is powered by Lattice OS, an AI-powered operating system that turns thousands of data streams into a realtime, 3D command and c
Posted 19 days ago | Updated 1 hour ago

Senior Software Engineer - Test Automation

Aduril Industries

•

Reston, Virginia, USA

Full-time

Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. By bringing the expertise, technology, and business model of the 21st century's most innovative companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril's family of systems is powered by Lattice OS, an AI-powered operating system that turns thousands of data streams into a realtime, 3D command and c
Posted 21 days ago | Updated 1 hour ago

Senior Software Engineer

Jobot

•

McLean, Virginia, USA

Full-time

Design and implement the next big thing enabling engineers to automate reliability on large scale, distributed software systems . This Jobot Job is hosted by: Charles Simmons Are you a fit? Easy Apply now by clicking the "Apply Now" button and sending us your resume. Salary: $140,000 - $215,000 per year A bit about us: This early stage software product startup has formed through the founders' decades of experience in technology leadership at the largest and most recognizable big tech companie
Posted 2 days ago | Updated 10 hours ago

Senior Software Engineer

Credence Management Solutions

•

McLean, Virginia, USA

Full-time

Overview At Credence, we support our clients' mission-critical needs, powered by technology. We provide cutting-edge solutions, including AI/ML, enterprise modernization, and advanced intelligence capabilities, to the largest defense and health federal organizations. Through partnership and trust, we increase mission success for war-fighters and secure our nation for a better future. We are privately held, are repeatedly recognized as a top place to work, and have been on the Inc. 5000 Fastest G
Posted 19 days ago | Updated 10 hours ago

Senior Software Engineer

Motion Recruitment Partners, LLC

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Rockville, Maryland, USA

Full-time

This role is a full-time opportunity that offers 100% remote work with a forward-thinking software company. They focus on building high impact external-facing products used in various industries. As a Senior Software Engineer at this company, you will get to work with leveraging technologies such as Java, SQL, React/Angular and cloud platforms to develop scalable software systems. If you are looking to join a company that values engineering excellence and offers flexible remote work, this role i
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Posted 15 days ago | Updated 9 hours ago

Senior Software Engineer .Net

ALTA IT Services

•

Merrifield, Virginia, USA

Full-time

Job Title: Senior Software Engineer .Net Location: Merrifield, Virginia Type: Direct Hire Compensation: $110000 - $125000 annually Contractor Work Model: Hybrid 4 days a week on-site; 1 day remote Security Clearance: a Public Trust clearance will be adjudicated SENIOR SOFTWARE ENGINEER .NET Hybrid, Merrifield, VA ALTA IT Services has a direct hire opening for a highly skilled and motivated Senior Software Engineer to join a dynamic systems integrator, supporting a civilian federal end-customer.
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Posted 3 days ago | Updated 10 hours ago

Sr. Software Engineer TS/SCI Polygraph $25k SIGN ON!

Leidos

•

Reston, Virginia, USA

Full-time

Description Leidos has an exciting opportunity for a Senior Software Engineer to join a high performing agile team using the Scaled Agile Framework (SAFe) methodology to support a nationally significant and fast-paced cryptographic key management program and we are extending a $25,000.00 SIGN ON BONUS! Program execution here follows DEVOPS best practices and employs robust development, test, and production environments. Additionally, the program is using Behavioral Driven Development (BDD) and t
Posted 7 days ago | Updated 7 hours ago

Senior Software 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 1 day ago | Updated 1 hour ago

Sr. Software Engineer III

Leonardo DRS

•

Germantown, Maryland, USA

Full-time

Job ID: 112036 DRS RADA Technologies, a subsidiary of Leonardo DRS, is focused on proprietary radar solutions and legacy avionics systems supporting the defense industry globally. The company is a global pioneer of AESA tactical radars for active military protection, counter-drone applications, critical infrastructure protection, and border surveillance. Job Summary Join our dynamic radar defense company as a Senior Software Engineer where you'll drive technical excellence and help shape the a
Posted 31 days ago | Updated 1 day ago

Senior Software Engineer

Motion Recruitment Partners, LLC

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Arlington, Virginia, USA

Full-time

A national non-profit in the education/higher education admission process is hiring a Senior Software Engineer. This will be a remote position but the candidate must be able to work EST and living in the United States. This position plans, develops, modifies, and tests software components using .NET technologies within an Amazon Web Service and Agile development environment to create new products and enhance existing software systems. You'll be working with C#, .NET Core, Angular 8+ and working
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Posted 8 days ago | Updated 9 hours ago

Senior Software Engineer

Modern Technology Solutions

•

Chantilly, Virginia, USA

Full-time

Overview Modern Technology Solutions, Inc. (MTSI) is seeking a Senior Software Engineer with experience in Java and JavaScript to join our team in Chantilly, VA. We are a small, but highly empowered team where every team member is directly responsible for the success of our mission. In your role, you will be responsible for designing, implementing, and maintaining software applications across one or more projects using an agile development model. Why is MTSI known as a Great Place to Work? Inte
Posted 55 days ago | Updated 3 days ago

Senior Software Engineer

Booz Allen Hamilton

•

Chantilly, Virginia, USA

Full-time

Job Number: R0219794 Software Engineer, Senior The Opportunity: As a full-stack developer, you can resolve a problem with a complete end-to-end solution in a fast, agile environment. If you're looking for the chance to not just develop sof tware, but to create a system that will make a difference, we need you on our team. We're looking for an experienced developer like you with the skills needed to develop sof tware and systems from vision to production-ready. This role is more than just coding
Posted 52 days ago | Updated 2 hours ago

Sr. Software Engineer

Leidos

•

Arlington, Virginia, USA

Full-time

Description Leidos is seeking a Senior Software Engineer to support the maritime autonomy team. In this position you will work in a diverse environment that allows you to get into every aspect of software development, and deployment across the software development lifecycle. You will be joining an existing team which has already successfully delivered for our customers and plan to continue their reputation of excellence. You will closely work with the Development team as well as other technology
Posted 7 days ago | Updated 7 hours ago