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  •  ...Job Description Job Description We are seeking a Senior Software Engineer to become an integral part of our team! You will be responsible for designing, building and maintaining web applications in a .NET environment. Responsibilities: Lead software development... 
    Senior
    Flexible hours

    Xpand Corp

    Herndon, VA
    20 days ago
  • Senior Data Engineer Job ID#: 25-1071 Clearance: Secret Location: Herndon, VA Who We Are Since our inception back in 2006, Navitas...  ...extraction, and keyword extraction (e.g., RAKE, TF-IDF, and other statistical or embedding-based methods). Leverage advanced NLP libraries... 
    Senior
    Local area

    Navitas

    Herndon, VA
    4 days ago
  • $130k - $200k

     ...b(a)(3). Please review the job details below. We're seeking a Senior AI/ML Solutions Engineer to support mission-driven users working...  ...Generative AL, and/or Natural Language Processing (NLP) Apply statistical and deep learning techniques to support predictive modeling,... 
    Senior
    Permanent employment

    Maxar Technologies

    Herndon, VA
    2 days ago
  •  ...Job Description Job Description Software Engineer (Senior) *12+ yrs experience with Top Secret Clearance Overall Assignment Description: Develop and manage the source code to support Geopolitical Entities, Names, and Codes (GENC) standard Content Management... 
    Senior
    For contractors
    Work experience placement

    Compatible Technology Solutions, Inc.

    Springfield, VA
    25 days ago
  • Responsibilities Maintain small-scale (less than 3 months) solutions tailored to meet specific customer requirements in mission-approved enterprise IT environments that adhere to rigorous organizational standards. Implement software adaptive maintenance and execute code...
    Senior

    Allen Integrated Solutions

    Springfield, VA
    13 hours ago
  • Job Description Job Description ️ Build the Future of Data — Join Us as a Software Engineer! We’re a fast-moving technology company transforming how data powers decision-making. Our core platform fuels critical systems across industries — and we’re looking for a ...
    Senior

    Technology Company

    Fairfax, VA
    9 days ago
  • Senior Software Engineer Join the Lockheed Martin Space team as a Senior Software Engineer. Space is a critical domain that connects our technologies, security, and humanity. While others see space as a destination, we view it as a realm of possibilities, where we can... 
    Senior
    Worldwide

    Lockheed Martin

    Herndon, VA
    3 days ago
  • Senior Software Engineer ACTIVE TS/SCI CLEARANCE with FS poly REQUIRED TO BE CONSIDERED FOR THIS POSITION Analyzes user interfaces...  ...system requirements and program specifications, from which programmers prepare detailed flow charts, programs, and tests. Coordinates... 
    Senior

    Tenica and Associates

    Herndon, VA
    more than 2 months ago
  •  ...modifications, upgrades and new COTS. Defines the problem, and develops system requirements and program specifications, from which programmers prepare detailed flow charts, programs, and tests. Coordinates closely with programmers to ensure proper implementation of... 
    Senior

    TENICA and Associates LLC

    Herndon, VA
    1 day ago
  • Job Description The Senior Embedded Software Engineer will support and lead the development of embedded software applications, with a focus on Rust. This role involves applying computer science, engineering, and mathematical principles to design, implement, and test software... 
    Senior

    Cynet Systems

    Herndon, VA
    3 days ago
  • As an Applications Developer , you will be responsible for supporting applications development and operations and maintenance of a variety of systems and initiatives in support of the mission! What You Will Be Doing: Helping promote state-of-the-art IT solutions and collaborating...
    Senior

    Crimson Phoenix

    Herndon, VA
    13 hours ago
  • Job Description Are you a talented engineer and want to work on a mission-focused product? Ntrepid is seeking a Senior Software Engineer to join a team creating a new Intelligent Automation framework. This hands-on technical position will play a key role in the development... 
    Senior
    Remote work

    Djangojobs

    Herndon, VA
    4 days ago
  •  ...empower our team and support our customers in building a safer global future. Overview of Opportunity Two Six is looking for a talented Senior Software Developer to join our growing team. In this role you will design, develop, and debug mission critical software source code... 
    Senior
    Local area

    Two Six Technologies

    Herndon, VA
    2 days ago
  • Must Be A US Citizen Active TS/SCI Software Engineer (Senior-Level) Overall Assignment Description: Senior-level Software Engineer assist in leading the design and development of software solutions for complex applications problems, API design, data services, platform... 
    Senior
    Work experience placement

    Avenue Technologies and Commodities Inc

    Herndon, VA
    1 day ago
  • Job Description Job Description Discover the feelings of : Loyalty, Recognition, Family, Camaraderie Come experience why so many employees have been with EAI for 5 - 10 + years, and continue to make it their home as the  EAI Family expands. Enjoy leading design...
    Senior
    Permanent employment
    H1b
    Work at office
    Work from home
    Night shift

    EAI Technologies

    Vienna, VA
    15 days ago
  • $104k - $166k

    Senior OpenVMS Software Engineer Job Locations: US Requisition ID: 2025-160000 | Position Category: Information Technology | Clearance: No Clearance Required Responsibilities Peraton is seeking a Senior Software Engineer to join our team of qualified, diverse individuals... 
    Senior
    Contract work
    Remote work
    Shift work

    Peraton

    Herndon, VA
    3 days ago
  • $150k - $180k

     ...your recruiter to learn more. Direct message the job poster from TalentRemedy Base pay range $150,000.00/yr - $180,000.00/yr As a Senior Software Engineer , you will help architect, build, and maintain critical backend systems. You will design and implement scalable solutions... 
    Senior
    Full time
    Remote work

    TalentRemedy

    Herndon, VA
    1 day ago
  • $130k - $180k

    HawkEye 360 is currently seeking a Senior Command & Control Software Engineer to join the Space Ground Systems Team. The mission of the Ground Systems Team is to provide the tooling to operate and maintain a growing constellation of small commercial satellites. This group... 
    Senior
    Work experience placement
    Remote work
    Night shift

    NightDragon Acquisition Corp.

    Herndon, VA
    2 days ago
  • Senior Software Developer Job Locations 2 months ago (3/14/2025 8:59 AM) Job ID 2025-11334 Posted Date Information Technology Job Location US-VA-Herndon Company Overview We are a world-class team of professionals who deliver next generation technology and products... 
    Senior

    QinetiQ U.S.

    Herndon, VA
    5 days ago
  • $165k - $200k

    Position Title: Senior Software Engineer Requisition ID: TA185 Location: Hybrid, Chantilly, VA/Herndon, VA/Washington Capital Area Application Deadline: We are accepting applications on an ongoing basis Who We Are Trusted Space builds solutions both on the ground... 
    Senior
    Full time
    Temporary work
    Local area

    Trusted Space, Inc.

    Herndon, VA
    13 hours ago
  •  ...and save money in the process. SPA has an immediate need for a Senior Software Engineer. Responsibilities As a senior software engineer...  ...Engineering, Physics, Math, Applied Math, Chemistry, Statistics) Excellent programming and software engineering skills with 8+... 
    Senior
    Immediate start

    Systems Planning and Analysis, Inc.

    Alexandria, VA
    2 days ago
  • ManTech seeks a motivated, career and customer-oriented Senior Software Developer to join our team in DC, Maryland, and Virginia (DMV) area . In this role you will research, design, develop, and test operating systems-level software, compilers, and network distribution... 
    Senior
    Work at office

    ManTech

    Herndon, VA
    7 hours agonew
  •  ...Job Description Job Description Job Description: We are seeking an experienced Senior iOS Developer to join our team onsite in McLean, VA. The ideal candidate will have 8+ years of professional iOS development experience, a strong background in Swift, and prior... 
    Senior
    Remote work

    Tek Spikes

    McLean, VA
    8 days ago
  •  ...builds powerful tools for mission-critical data pocessing and analysis? NS2 Mission is seeking a highly motivated and innovative Senior Software Developer to support a data-driven program in Chantilly, VA. This role focuses on developing and maintaining scalable... 
    Senior
    Local area
    Flexible hours

    NS2 Mission

    Chantilly, Loudoun County, VA
    29 days ago
  •  ...~ Experience in server-side development with MVC, unit/acceptance testing, version control ~ Familiarity with mathematics and statistics ~ Other desired technologies include AWS, R, Redis, Linux, Rails, HTML, CSS, and JavaScript ~ Note: Applicants for employment... 
    Senior
    Live out
    Work at office
    Remote work
    Work visa
    Monday to Friday
    Flexible hours

    Tios Capital

    Alexandria, VA
    more than 2 months ago
  • $86.8k - $198k

     ...Allen’s total compensation package for employees. This posting will close within 90 days from the Posting Date. 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... 
    Senior
    Full time
    Contract work
    Part time
    Local area
    Remote work

    Phase2 Technology

    Herndon, VA
    3 days ago
  • $119k - $140k

     ...Empowerment, Innovation, Learning, Transparency, and Trust guide how we show up for one another and grow together. Job Description As a Senior Software Engineer, you will be responsible for the implementation, enhancement, and maintenance of ATPCO applications and services.... 
    Senior
    Work experience placement
    Remote work
    Work from home
    Flexible hours

    ATPCO

    Herndon, VA
    7 hours agonew
  • $119k - $155k

     ...Innovation, Learning, Transparency, and Trust guide how we show up for one another and grow together. Job Description As a Senior Software Engineer, you will lead the development of scalable, resilient, and high-performing software solutions that are... 
    Senior
    Full time
    Remote work
    Work from home
    Flexible hours

    ATPCO

    Herndon, VA
    2 days ago
  •  ...modalities and incorporate advanced algorithms, deep learning, and statistical techniques to uncover patterns in social media, structured and...  ...information around the globe. The Role: As a Senior Software Engineer, you will leverage your skills in systems and... 
    Senior
    Full time
    Local area
    Night shift

    Str

    Arlington, VA
    13 hours ago
  •  ...build, and deploy applications at the direction of lead architects, including large-scale data processing, computationally intensive statistical modeling, and advanced analytics to support a forensic and investigative ecosystem. Key Responsibilities Design, develop, test,... 
    Senior
    Temporary work

    Fusion Technology

    Chantilly, Loudoun County, VA
    4 days ago