April 22, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.
Gaithersburg, MD28 days ago
April 15, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.
Washington DC, DC30+ days ago
li class="paragraph" style="background-color:white;vertical-align:baseline">2+ year of in-depth working knowledge of ASP.NET Core using C#.NET, Angular/React, HTML5, CSS, and MS SQL Server, Identity.
Plan, design, build, test, deploy and maintain highly scalable web-based services using modern technologies.
Gaithersburg, MD20 days ago
June 8, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.
The Senior Full Stack Developer will collaborate with client stakeholders, solution architects, product owners, UX designers, platform engineers, business analysts, and cross-functional technical teams to design, build, test, and deploy resilient software solutions. The ideal candidate has strong hands-on experience with Python and JavaScript, modern web frameworks, RESTful APIs, microservices, cloud-native development, and AWS-based application delivery.
Washington DC, DC3 days ago
This role collaborates with Product Owners, Federal Project Managers (FPMs), Business Analysts, Solution Architects, UX/UI Designers, QA Engineers, and DevSecOps teams to deliver end-to-end solutions across the full software development lifecycle. The Senior Full Stack Developer is responsible for designing, developing, integrating, and supporting secure, scalable, and high-performing enterprise web applications using modern cloud-native technologies.
Seeking knowledge of Adobe Target, Adobe Analytics, taxonomy, digital asset management, content management systems (CMS), search engine optimization (SEO), and online/digital metrics using industry best practices. Collaborate with Marketing and Digital staff and other internal business units/vendors to ensure timely/accurate implementation of digital content enhancements/requirements to support business needs and member experience.
Falls Church, VA4 days ago
Responsibilities- Support the delivery of client solutions using advanced analytics, exploratory data analysis, data wrangling, and ETL processes within a SAFe Agile environment.
- Derive insights from data and build robust data applications using analytics and coding tools (e.g., Python, R, Alteryx, SQL, SAS).
Gaithersburg, MD2 days ago
June 26, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.
However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contractor’s legal duty to furnish information. The disclosed range takes into account the wide range of factors that are considered in making compensation decisions including, but not limited to, geographic location, relevant education, qualifications, certifications, experience, skills, seniority, performance, sales or revenue-based metrics, and business or organizational needs.
However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contractor’s legal duty to furnish information. The disclosed range takes into account the wide range of factors that are considered in making compensation decisions including, but not limited to, geographic location, relevant education, qualifications, certifications, experience, skills, seniority, performance, sales or revenue-based metrics, and business or organizational needs.
Job title: Python DeveloperLocation: Washington, DCClient: GSA Data.govClearance: Public Trust ClearanceOverview: We are looking for a Senior Backend Engineer to support federal software engineering efforts, primarily focused on operations and maintenance of Data.gov applications. The ideal candidate has strong Python and Flask experience, and is comfortable working in a dockerized development environment.
Support alignment with security and compliance frameworks such as CIS Benchmarks, NIST, HIPAA, FedRAMP, and SOC 2. • Assist with incident detection, investigation, response, and audit trail maintenance across AWS accounts and services. • Strong hands-on knowledge of AWS services, including EC2, S3, RDS, Lambda, ECS/EKS, CloudFront, Route 53, IAM, CloudTrail, AWS Config, and KMS.
Springfield, VA30+ days ago
This position is part of our Cyber and Intelligence division, which plays a critical role in supporting Enterprise-Level Security and Modernization efforts across IT infrastructure, cybersecurity, physical facilities, and personnel operations. When extending an offer, HII's Mission Technologies division takes a variety of factors into consideration which include, but are not limited to, the role's function and a candidate's education or training, work experience, and key skills.
Springfield, VA30+ days ago
Desired experience: Experience supporting; ServiceNow ITSM implementations, federal or regulated environments, platform governance and backlog management, user acceptance testing (UAT) and release validation. This position is part of our Cyber and Intelligence division, which plays a critical role in supporting Enterprise-Level Security and Modernization efforts across IT infrastructure, cybersecurity, physical facilities, and personnel operations.
Springfield, VA30+ days ago
Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals. This position is part of our Cyber and Intelligence division, which plays a critical role in supporting Enterprise-Level Security and Modernization efforts across IT infrastructure, cybersecurity, physical facilities, and personnel operations.
Determines computer user needs; analyzes system capabilities to resolve problems on program intent, output requirements, input data acquisition, programming techniques and controls; prepares operating instructions; designs and develops compilers and assemblers, utility programs, and operating systems. 9 years relevant experience with Bachelors in related field; 7 years relevant experience with Masters in related field; 4 years relevant experience with PhD in related field; or High School Diploma or equivalent and 13 years relevant experience.
Germantown, MD28 days ago
Job Description: Senior Applications Developer/Engineer, highly proficient in leading and independently maintaining, developing, testing and delivering high quality, enterprise-wide solutions. Required Experience: 10 Years+ experience: Designing, developing, testing, and maintaining custom Jira solutions .
Five or more years of specific successful Business Development, Capture Management or Program Management experience within the defense or federal market areas including but not limited to: Acquisition, Global Logistics, Integrated Product Support, Modernization, Intelligence and Operations, Engineering Services and additional capability/market areas required to sustain manned and unmanned platforms. The ideal candidate should understand services type contract arrangements and acquisition life cycles, and understand the organizational structure and mission of the 11 Unified Combatant Commands in the Department of War, the Department of State, the Department of Homeland Security, the Federal Emergency Management Agency, and other FEDCIV agencies.
HII - Mission Technologies is currently seeking a Junior BI Developer/Analyst to work out of Fairfax, VA in support of the DoD/DoW Advana War Data Platform designed to aggregate operational, intelligence, logistics, and sensor data from multiple domains, enable Joint All-Domain Command and Control (JADC2) by providing a common data fabric, and support AI/ML applications for predictive analytics, targeting, and mission planning. • Develops business intelligence components supporting War Data Platform (WDP) Core Integration data operations by preparing structured datasets, building baseline dashboards, and conducting routine analytic validation across Unclassified and NIPR, Secret and SIPR, and Top Secret and JWICS enclaves.
Serving federal, state, & local government clients as well as public higher education institutions, our team of professionals brings fresh perspective to help clients anticipate disruption, reimagine the possible, and fulfill their mission promise. Our purpose comes through in our work with clients that enables impact and value in their organizations, as well as through our own investments, commitments, and actions across areas that help drive positive outcomes for our communities.
Serving federal, state, & local government clients as well as public higher education institutions, our team of professionals brings fresh perspective to help clients anticipate disruption, reimagine the possible, and fulfill their mission promise. Our purpose comes through in our work with clients that enables impact and value in their organizations, as well as through our own investments, commitments, and actions across areas that help drive positive outcomes for our communities.
Sterling, Virginia30+ days ago
You will also play a key role in enhancing and automating request fulfillment workflows, integrating ServiceNow with network management systems, ensuring seamless workflows across various business processes. Pay Range:
There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications.
p>Qualifications: Bachelors degree in Technical field or equivalent work experience 10+ years of related work experience TS/SCI with Poly required ServiceNow certifications (e.g., Certified System Administrator, Certified Application Developer) Strong knowledge of JavaScript, AngularJS, and web services (REST, SOAP) Experience with ServiceNow modules including CMDB, ITSM, and Discovery Experience in developing custom applications and integrations in ServiceNow Knowledge of database design and management within ServiceNow Strong troubleshooting, problem-solving and analytical skills Excellent communication and collaboration abilities Experience with Agile development methodologies.
Desired:
ServiceNow Certified Implementation Specialist - ITSM Experience with other ITSM platforms and NMS tools Familiarity with network protocols, technologies, and common NMS platforms Knowledge of ITIL processes and best practices Familiarity with scripting languages commonly used in network automation (e.g., Python, NodeJS, Perl) Experience with performance analytics and reporting in ServiceNow.
section class="comp-km6xx8tr CohWsy wixui-column-strip" id="comp-km6xx8tr">Closure Technologies is seeking a Systems Software Developer in Chantilly, VA who will leverage their development skills and experience to support the successful ingestion, cleansing, transformation, loading, and display of significant amounts of data, with a particular focus on Cloud data.
- Strong software development experience, to include significant Java development, data analysis/parsing, and SQL/database experience.
Sterling, Virginia30+ days ago
h2>Key Job Responsibilities: Provide onsite support for Java-based web applications within a microservices architecture, ensuring high availability, reliability, and performance of deployed systems in the customer space. Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers’ most demanding challenges.
McLean, Virginia19 days ago
In this role, you’ll develop and customize applications that directly support analytic workflows—leveraging Python, PostgreSQL, and AWS services such as SQS to deliver secure, reliable, and high‑performance capabilities. Who We Are: We offer advanced services in data science, data engineering, software engineering, AI solutions, cybersecurity, staff augmentation, and IT program management.
Chantilly, Virginia6 days ago
The ideal candidate brings experience with ML frameworks—including scikit‑learn, SpaCy, TensorFlow, PyTorch, and Keras—along with strong proficiency in Natural Language Processing techniques. This role requires demonstrated experience developing cloud‑based solutions using AWS services, building and consuming REST services, and working with SQL databases such as Postgres.
Washington, DC30+ days ago
With nearly 2,000 team members around the world, and a rich legacy spanning more than 70 years, Versar Global Solutions delivers a broad array of planning, analysis and risk management solutions, project and program management, operations and maintenance services, and information technology applications for environmental management and remediation projects, mission critical facilities and installations, and in support of readiness and contingency operations. In this pivotal role, you will collaborate with our dynamic Geospatial & Digital Solutions (GDS) Market Sector team to support diverse IR&D and customer-focused projects within a multi-disciplinary organization to achieve specific goals and objectives.
This role will focus on developing a “game-like” platform where both technical and non-technical users can design, run, and evaluate real-world scenarios involving aerial drones and autonomous maritime systems. Leveraging platforms like Unreal Engine (AirSim) or Unity, you will create intuitive tools and immersive environments that enable rapid scenario testing, validation, and experimentation.