Mid Level Developer Jobs in Washington, DC

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Sr. Software Engineer ServiceNow - U.S. Citizen - This role sits within Optum Serves Technology Product organization

Widescope Consulting and Contracting Services

•

Remote

Full-time

Job Title: Sr. Software Engineer ServiceNow Location: Headquarters / Telecommute Classification (HR only): Exempt Non-Exempt Reports To (Title): COO Widescope Consulting and Contracting JOB SUMMARY The statements below are not intended to be all-inclusive of the duties and responsibilities of the position. Based on leadership decisions and business needs, all other duties as assigned will be expected for each position. Widescope Consulting and Contracting is proud to serve our nation's milita
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Posted 36 days ago | Updated 15 days ago

Senior Database Engineer (SQL)

Costar Group

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Arlington, Virginia, USA

Full-time

Senior Database Engineer (SQL) Job Description OVERVIEW: CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included in the S&P 500 Index and the NASDAQ 100, CoStar Group is on a mission to digitize the world's real estate, empowering all people to discover properties, insights and connections that improve their businesses and lives. We have been living and breathing the world of real estate infor
Posted 35 days ago | Updated 3 hours ago

Senior Software Engineer

Brilliant Infotech Inc.

•

Remote

Contract

Job Description: Design and implement data migration pipelines using NodeJS and / or JavaDevelop programs, tools and / or scripts to migrate structured metadata (e.g., sports events, teams, stats)Write and / or update QA programs to validate correctness and completeness of data migrationPerform self-QA and debugging to ensure high-quality deliveryCollaborate with teammates to iterate, test, and validate migration logicMaintain documentation and logs of migration and QA outcomesProactively raise
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Posted 21 days ago | Updated 1 day ago

Senior Engineer / Analyst for ISRT Scientific Applications

Johns Hopkins University AppliedPhysicsLaboratory

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Laurel, Maryland, USA

Full-time

Description Do you enjoy leading teams, mentoring staff, and guiding complex technology development efforts and analyses? Are you interested in researching, developing, and analyzing innovative ways to produce impactful information from many different types of sensors and sources of data? Do you want to advance US defense capabilities in Intelligence, Surveillance, Reconnaissance, and Targeting? If so, we're looking for someone like you to join our team at APL! We are seeking a creative and
Posted 60+ days ago | Updated 4 hours ago

Senior Software Engineer

Two95 International

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Remote

Full-time

Title: Senior Software Engineer Location: Remote Work Type : Fulltime Salary: $Open Responsibilities: Full-Stack Development: Design, develop, and maintain scalable, secure, and efficient software applications using Scala and TypeScript.Cloud Infrastructure: Utilize AWS services (CFN, EC2, Lambda, S3, Dynamo, etc.) to deploy and manage applications in the cloud.Containerization & Orchestration: Implement containerized solutions using Docker, deploy and manage services on Kubernetes.Distributed
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Posted 22 days ago

System Developer - C++

Judge Group, Inc.

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Manassas, Virginia, USA

Contract

Location: Manassas, VA Description: The Judge Group's direct client in the financial services domain is seeking an experienced Senior System Developer - C++ in Manassas, VA/ HYBRID. Job Title: System Developer - C++ Job Location: Manassas, VA/ Hybrid Job Description: Code, test, and review software using technologies including C++, STL, Boost, Multithreading, Unix, Perl, Python and XML. Requirement analysis and Design of new features and enhancements to existing components. Produce/update
Posted 8 days ago | Updated moments ago

Senior Cybersecurity Engineer (US Federal)

Workday, Inc.

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McLean, Virginia, USA

Full-time

Your work days are brighter here. At Workday, it all began with a conversation over breakfast. When our founders met at a sunny California diner, they came up with an idea to revolutionize the enterprise software market. And when we began to rise, one thing that really set us apart was our culture. A culture which was driven by our value of putting our people first. And ever since, the happiness, development, and contribution of every Workmate is central to who we are. Our Workmates believe a h
Posted 37 days ago | Updated 4 hours ago

Senior Cyber Security Engineer

ManTech

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Chantilly, Virginia, USA

Full-time

ManTech seeks a motivated, career and customer-oriented Senior Cyber Security Engineer to join our team in Chantilly, VA. Responsibilities include but are not limited to: Maintain operations of identity and access management services including directory, access, identity, and privileged access management servicesMaintain infrastructure in cloud or virtualized environmentsPerform Linux based system upgrades and patchesEngineer and deployment of a privileged access management (PAM) solutionEnginee
Posted 42 days ago | Updated 8 hours ago

Sr. ServiceNOW developer with CSM experience - Customer Service Management + ITSM

Georgia IT

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Remote

Contract

Sr. ServiceNOW developer with CSM experience - Customer Service Management + ITSM Remote Duration 10-12 months Rate DOE Looking for Senior ServiceNow Developer with the following skillset/experience9-10 years of hands-on experience as a ServiceNow developerUI Builder good to haveCustomer Service (we have 3 CSM instances) must have hands-on experience including - Integration + customization configurationIntegration + customization +configurationITSM MUST haveHRSD should be conversantPortal De
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Posted 7 days ago

Senior System Engineer

SAIC

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Fort Meade, Maryland, USA

Full-time

Job ID: 2506166 Location: FORT MEADE, MD, US Date Posted: 2025-06-24 Category: Engineering and Sciences Subcategory: Systems Engineer Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: TS/SCI with Poly Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description SAIC, a leading provider of systems engineering & integration, systems development & deployment, intelligence analysis and targeting, and training solutions for the Intelligence
Posted 46 days ago | Updated 1 hour ago

Senior Machine Learning Engineer

Draper

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Remote or Reston, Virginia, USA

Full-time

Overview: Draper is an independent, nonprofit research and development company headquartered in Cambridge, MA. The 2,000+ employees of Draper tackle important national challenges with a promise of delivering successful and usable solutions. From military defense and space exploration to biomedical engineering, lives often depend on the solutions we provide. Our multidisciplinary teams of engineers and scientists work in a collaborative environment that inspires the cross-fertilization of ideas
Posted 60+ days ago | Updated 4 hours ago

Lead Full Stack Developer

ICF

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Reston, Virginia, USA

Full-time

The Lead Developer will play a pivotal, technical-leadership role in successfully deploying technical solutions for our clients. This role will be responsible for configuring, customizing, and implementing ServiceNow applications to meet specific business requirements. Technical expertise and attention to detail are critical to the success of our projects and the satisfaction of our clients. Job Responsibilities Collaborate with analysts and stakeholders to provide technical guidance throughout
Posted 60+ days ago | Updated 4 hours ago

Full Stack Developer Sr

Jacobs

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Washington, District of Columbia, USA

Full-time

As a Sr Full Stack Developer at Amentum, you'll be at the forefront of designing, developing, and deploying sophisticated enterprise applications in support of government IT missions. You'll lead efforts across the full software development lifecycle while applying advanced technical knowledge and strategic insight to create systems that are efficient, secure, and scalable. Your day-to-day responsibilities will include: Lead architectural design and development efforts for enterprise-level appli
Posted 4 days ago | Updated 4 hours ago

Sr Python Developer

Accenture LLP

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Chantilly, Virginia, USA

Full-time

At Accenture Federal Services, nothing matters more than helping the US federal government make the nation stronger and safer and life better for people. Our 13,000+ people are united in a shared purpose to pursue the limitless potential of technology and ingenuity for clients across defense, national security, public safety, civilian, and military health organizations. Join Accenture Federal Services, a technology company and part of global Accenture, to do work that matters in a collaborative
Posted 60+ days ago | Updated 4 hours ago

Software Engineer, Backend

West Coast Consulting LLC

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Remote

Contract

Job Description Title: Software Engineer, Backend Duration: Aug 5, 2025 - Jul 31, 2026 Location: Remote (North America) TECHNICAL SKILLS Must Have3+ years of software development experience in one or more general purpose programming languages (Java, Scala, Go, C++, Python).Nice To Have Experience with prompt engineering, machine learning or data science. Cost Center Code49 - Tech-Ads Engineering JOB DESCRIPTION The Ad Safety & Verification (ASV) team is small, scrappy, and able to execute o
Posted 7 days ago | Updated moments ago

Lead Cybersecurity Engineer

Zachary Piper Solutions, LLC

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Remote

Full-time

Piper Companies is seeking a Lead Cybersecurity Engineer to join a cutting-edge decision science security organization. The Lead Cybersecurity Engineer will be responsible for designing robust cybersecurity measures and access management solutions to protect the organization's systems and data. Responsibilities of the Lead Cybersecurity Engineer include: Design robust cybersecurity measures and access management solutions to protect the organization's systems and data. Lead the implementatio
Posted 29 days ago | Updated 28 days ago

Sr. Developer

Canyon Associates

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Remote

Full-time

Remote position is mandatory C# Oracle preferred, Sql Server is a plus asp.net front end UI experience Blazor experience is preferred Will see Javascript experience Must have web applications, Winforms experience is a plus
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Posted 28 days ago

Software Developer Senior

Jacobs

•

Washington, District of Columbia, USA

Full-time

Amentum is searching for a Top Secret cleared Software Developer (Senior) to join our team in Washington, DC. As a Top Secret Software Developer for this program, you will be working in an organization that's mission is to develop and operate the best possible software for critical national security enterprise applications. This organization leverages SCRUM and SAFE Agile software development methodology and strong Dev Ops practices. You will be responsible for developing code, testing and debu
Posted 60+ days ago | Updated 4 hours ago

Software Engineer

Tavant

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Remote

Contract

Hello, Greeting from Tavant. please find the job description below and let me know your interest to submit. Role: Software Engineer Location: Remote 3 experienced engineers (likely senior level) to contribute to backend development. The ideal candidates should: 7+ years of development experienceFamiliarity with Flask (for building APIs), PostgreSQL, Redis, and Google Cloud (Google Cloud Platform)Node jsReactCybersecurity experience preferred
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Posted 6 days ago

Senior System Engineer (Government)

AT&T Inc.

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Oakton, Virginia, USA

Full-time

Job Description: This position requires office presence of a minimum of 5 days per week and is only located in the location(s) posted. No relocation is offered. AT&T Global Public Sector is a trusted provider of secure, IP enabled, cloud-based, network solutions and professional services to the Federal Government. We are dedicated to recruiting, developing and empowering a diverse, high-performing workforce that is passionate about what they do, committed to our shared values and dedicated to
Posted 60+ days ago | Updated 4 hours ago