UNKNOWN

ADAPTED_NOW

We are seeking a Full Stack Software Developer to develop, create, maintain, and write/code new (or modifies existing) computer applications, software, or specialized utility programs. Prefer an accredited Computer Science, Cyber Security, Information Technology, Software Engineering, Information Systems, or Computer Engineering degree; or a degree in a Mathematics or Engineering field.

YEAR

CALIBRE Systems, Inc. (CALIBRE) is an employee-owned management consulting and digital transformation company supporting government and industry. CALIBRE is committed to the success of our clients, and delivers enduring solutions that solve management, technology, and program challenges. CALIBRE is a leading provider of solutions serving clients in the public and private sectors - Defense, Federal / Civil and Commercial corporations. Our employees - operating from our Alexandria, Virginia headquarters, five regional offices across the U.S. and in two foreign countries - are committed to delivering high quality solutions. 
CALIBRE and its subsidiaries are an Equal Opportunity Employer and supports transitioning service members, veterans and individuals with disabilities. We offer a competitive salary and full benefits package. To be considered, please apply via our website at <a href="https://urldefense.com/v3/__http:/www.calibresys.com/__;!!D1XWH5In!Qkx82SYK92oKjJ7-Frwd6F0l0fYP5PYZB0F9SIM2mYfqkXijbHOeiSxf36SM6DfGX2nbkigGxcvTEcNqxqMyCsgPBQ$">www.calibresys.com</a>. Come join our dynamic team. #CALIBRECareers

Calibre Systems

Software Developer - Advanced

Software Developer Intermediate

FEED

This work aligns with the FAA’s broader initiative to modernize legacy flight service capabilities, replacing aging infrastructure with scalable, cloud-based platforms designed to improve safety and operational efficiency—particularly in remote and high-dependency aviation environments. 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 .

Everything we do is built on our commitment to do the right thing for our customers, our employees, and our communities. Learn more about the values and culture that are the foundations of our business.

Leidos

Senior Software Developer - Java

Appcast Exclusive 1

The resource will mainly support the US Government Client eCommerce Platform, a key revenue-generating application within the Commerce Tech Applications portfolio, as well as its closely integrated applications (Endeca, Enterprise Search, and Oracle Web Center Content). • Experience in application support including but not limited to querying and analyzing database information, environment deployments to web and application servers, performing load and performance testing, certificate management, and monitoring server health.

PLANIT Group is a fast-growing global technology consulting firm dedicated to delivering innovative solutions to our clients that drive results. We collaborate with our partners and customers to help them improve performance, efficiency, and quality. Our team delivers innovative solutions and services - including management consulting, systems integration, ERP solutions, enterprise architecture, communications, and infrastructure services. We focus on delivering value and driving increased productivity and efficiencies for our clients’ mission. Our extensive experience in the Federal, Defense, Intelligence, State, Local, Healthcare and Commercial industries delivers proven results and accelerated benefits.
Clients engage PLANIT for our expertise, innovative approach, and our exceptional team. We promote a creative, client-centric work environment and culture, striving to provide challenging and rewarding opportunities for our company’s employees and partners. Integrity and innovation are the core principles of our company philosophy. Our customers engage us to create solutions to complex mission challenges, and PLANIT delivers. For more information, visit http://www.planitgroup.com/. Innovation. Integration. Integrity.

PlanIT Group

Software Developer / Application Support

FULL_TIME

Configure, administer, and support Appian application deployments across development, test, and production environments, coordinating with DevSecOps and infrastructure teams. * Design and implement integrations with external systems using Appian connected systems, integration objects, REST APIs, and approved plug-ins.

SimVentions is 100% employee-owned and proudly ranked among Virginia’s Best Places to Work year after year! We are seeking a Database Architect to join our team! This position requires daily on-site presence at our Virginia Beach office.

Surprise

Senior Appian Developer

A degree from an accredited College/University in Software Engineering, Computer Science, or related discipline is preferred; Able to perform all functional duties independently; Experience training/mentoring less experienced personnel; Experience authoring or contributing to software-related documentation such as requirements specifications, design documents, technical manuals, and user manuals; Excellent communication skills. Expertise in Struts, Spring MVC, Git Bash, Java25, WebSphere, Tomcat, GitHub, GitHub Copilot, VersionOne, JUnit, JDBC, Maven, ALM, UFT.

Software Developer

This is a great opportunity to join a fast-paced agile team that works with the latest technologies and patterns, asynchronous programming, and MVVM to design and develop next-gen Esri software. Design, develop, and build software components, frameworks and SDKs for other engineering teams and external developers consuming our API.

We show people how to make the world work better with maps and apps. We are the best in our fields from all walks of life and all over the world. We come together in small teams to make big ideas happen. With our GIS technology, anything is possible. Come join us.

Esri

Sr. Software Developer - C#/WPF for UI/UX Development

Ivy Exec

POSTING_API

HOUR

The ideal candidate will have strong experience in designing, developing, testing, deploying, and supporting integrations for Oracle Fusion Cloud Applications and a proven ability to deliver scalable, secure, and reliable enterprise integrations across HCM, ERP, Finance, Procurement, and SCM modules. Oracle Integration connection creation documentation: [a href="https://docs.oracle.com/en/cloud/paas/application-integration/integrations-user/connection-creation.html"][docs.oracle.com].

BC Forward

Oracle Fusion Integration / API Developer

Assess existing application architecture, isolate and resolve complex production defects, remediate technical debt, and improve application reliability, maintainability, performance, and response times. Collaborate with architects, business analysts, product owners, and cross-functional delivery teams to define requirements, resolve technical blockers, and deliver high-quality solutions in Agile environments.

NuAxis Innovations

.NET Developer

You'll work alongside experienced engineers across the software development lifecycle, contributing to the design, development, testing, debugging, configuration, and support of Java-based applications. Job Summary/Company : Our client is seeking a junior to mid-level Java Developer with a TS, TS/SCI, or TS/SCI CI Poly to work onsite in support of a mission-essential program.

Bringing the Best People and the Best Companies Together Since 1970.
Sparks Group (formerly SPARKS, Sparks IT Solutions, and Sparks Personnel) is the Washington DC Area's leading temporary staffing and full-time recruiting services provider. Whether you are seeking your next opportunity or looking to add talent, Sparks Group is the ideal partner for you! Each of our four divisions (Sparks Office, Sparks Accounting &amp; Finance, Sparks IT, and Sparks Creative) specializes in placing professionals in temporary/contract, temporary-to-full-time, and full-time roles across a diverse array of staffing categories, positions and levels including: office/administrative, customer service, human resources and talent acquisition, legal support, government and cleared personnel, mortgage/banking, accounting and finance, contracts and procurement, information technology and creative/marketing.
Sparks Group brings over four decades of experience placing professionals in challenging and rewarding positions at many of the area&rsquo;s most prestigious organizations. Our primary focus is presenting opportunities that match each candidate&rsquo;s skill-sets, experience levels, career objectives, and growth needs. Sparks Group has regularly ranked as one of the top US staffing and recruiting firms having been named to Inavero&rsquo;s Best of Staffing Lists&reg; for Client and Employee Satisfaction (2012-2017). Additionally, Sparks Group is proud to have been recently selected for other awards Staffing Industry Analysts&rsquo; 2017 Best Staffing Firms to Work For, Washington Business Journal Best Places to Work (2017), the Washington Post&rsquo;s Top Workplaces&reg; List (2017, 2014), Forbes&reg; Best Professional Recruiting Firms (2017), and the National Capital Business Ethics Award.

Sparks Group

Java Developer w/Top Secret clearance

This hands-on software development role will design, build, integrate, test, deploy, troubleshoot, and sustain enterprise analytics applications using Google Cloud Platform, Looker Enterprise, LookML, and Looker Studio or Looker Studio Pro. At least three years of hands-on Google Looker Enterprise and LookML development experience, including production semantic models, Explores, dashboards, reusable components, access controls, testing, deployment, and sustainment.

Credence

Senior Google Cloud Platform Looker Developer

Credence Mgmt Solutions

This role partners with stakeholders, system administrators, and cross-functional teams to deliver scalable applications, workflows, and integrations while supporting platform modernization and process automation. Design, develop, customize, and deploy ServiceNow applications, modules, workflows, forms, and user interfaces to support business and operational requirements.

ServiceNow Developer

List of tasks to be performed: • Work with GIS (Geographic Information Systems) software and platforms, along with programming languages and tools for web mapping and spatial data management. o Application Programming Interfaces (APIs) like ESRI Map APIs, Leaflet, and OpenLayers to integrate mapping and geospatial functionalities into web applications.

GIS Map Developer - Level III

Leads a group of engineers, analysts, and/or technicians assigned for the duration of a project or may function as ongoing lead within a group of engineers associated with one or more technical areas within the telecom function (such as, but not limited to, network design, engineering, implementation, or operations/user support). • Ability to develop functional requirements specifications, data mappings, function mapping, setting of configuration tables and setting of transaction/control tables.

Senior SAP Developer

System One IT has multiple 12-month+ contract openings for highly skilled and experienced ServiceNow Developers to play a key role in the successful implementation and adoption of ServiceNow applications across a federal enterprise. Strong communication skills to enable proactive and effective collaboration with a virtual team, including the ability to clearly articulate status and present to both customers and program leadership.

Every day, System One focuses on services and solutions that require a high degree of specialization, in-demand technical skills, and large-scale operational expertise. We are essential partners to those on the front lines of our nation’s most critical infrastructure, technology, and life sciences initiatives. 
Founded more than 40 years ago as a staffing partner to the engineering industry, today System One is a diversified organization operating in over 50 locations and putting more than 9,000 people to work in the United States, Canada, and the United Kingdom.

System One

Senior ServiceNow Developers (on-site)

You will also manage and participate in designing and developing solutions using various ServiceNow modules, portals and features including Service Portal, CSM, APO, Integration Hub, Flows, Business Rules, Script Includes, Service Catalog, Asset Management, CMDB, AI Agents, and other ServiceNow modules, as required. Credence has an immediate need for a Senior ServiceNow Developer who will assist in solutioning and development of applications leveraging ServiceNow OOTB modules, configuration and Service Portals as necessary to ensure the required business outcomes are delivered.

ServiceNow Service Portal Developer

You will architect and implement scalable agent frameworks that integrate LLMs, APIs, external tools, and enterprise systems to automate complex workflows for datacenter operations. We are seeking a Senior Agentic AI Developer to design, build, and deploy advanced autonomous AI systems capable of multi-step reasoning, tool usage, and dynamic decision-making.

Senior Agentic AI Developer

The successful candidate will help build data ingestion and processing pipelines, support Retrieval-Augmented Generation (RAG) solutions, develop AI integrations, and provide technical support to end users in a dynamic and collaborative environment. Generative AI or Machine Learning certifications such as Microsoft Azure AI Engineer Associate, AWS Certified Machine Learning Engineer, Google Professional Machine Learning Engineer, Databricks, or NVIDIA certifications.

AI Developer

Monitor production AI systems, perform root-cause analysis, support incident response and scheduled helpdesk support, and contribute to Responsible AI documentation (model cards, impact assessments); participate in two-week Agile sprints using Government-furnished AI engineering tools (e.g., GitHub Copilot, with model inference via Azure AI Foundry, Google Vertex AI, or AWS Bedrock), taking part in code and prompt reviews under the same review and security gates as hand-written code, and keeping code, prompts, and documentation in Government-approved repositories with full traceability. Build Large Language Model (LLM) integrations, Retrieval-Augmented Generation(RAG) pipelines, vector search, and agentic AI workfl ows using Model ContextProtocol (MCP)-based tools, engineered to the government’s AI agent securityframework (OWASP Top 10 for LLM Applications, NIST AI RMF) with promptengineering, retrieval quality controls, and human-in-the-loop oversight.

AI Full Stack Developer

Create new and maintain existing software applications in various programming languages, including Python, Java, JavaScript, Fortran, C/C++, Hypertext Markup Language (HTML), CSS, shell scripting and related technologies, including charting tools such as Highcharts,GNU plot, Mapping API tools (Google Maps, Esri, Leaflet), Content Management System (i.e WordPress), ArcGIS, SQL, Single-Sign-on (i.e. ActivClient), and AWS technologies such as Elastic Beanstalk, S3, command line interfaces, etc. Ability to port legacy systems to new operating systems, recommend improvements in application design to improve application performance and security, and provide accurate and reliable oceanographic data ingestion and dissemination services to ensure high data quality.

Systems Software Developer Jobs in Mclean, VA

Software Developer - Advanced Calibre Systems

Software Developer Intermediate Calibre Systems

Senior Software Developer - Java Leidos

Software Developer / Application Support PlanIT Group

Senior Appian Developer Surprise

Software Developer PlanIT Group

Sr. Software Developer - C#/WPF for UI/UX Development Esri

Oracle Fusion Integration / API Developer BC Forward

.NET Developer NuAxis Innovations

Java Developer w/Top Secret clearance Sparks Group

Senior Google Cloud Platform Looker Developer Credence

ServiceNow Developer Credence

GIS Map Developer - Level III PlanIT Group

Senior SAP Developer PlanIT Group

Senior ServiceNow Developers (on-site) System One

ServiceNow Service Portal Developer Credence

Senior Agentic AI Developer PlanIT Group

AI Developer System One

AI Full Stack Developer System One

Full Stack Developer BERING DYNAMIC SOLUTIONS LLC

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