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Senior Principal Software Engineer (Onsite)

RTX Corporation

Maryland, USA

Full-time

Date Posted: 2025-06-17 Country: United States of America Location: MD440: 8170 Maple Lawn Blvd Fulton MD 8170 Maple Lawn Boulevard , Fulton, MD, 20759 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 Solipsys, Managed by Collins Aerospace Collins Aerospace, an RTX company, is a leader in technologically advanced and

Reverse Engineer

BlueHalo

Annapolis, Maryland, USA

Full-time

At BlueHalo, an AV Company, our analysts provide actionable intelligence. We quickly convert customer requirements into real hardware, software, firmware, and mechanical solutions in weeks, not years. With an organizational structure and design processes tailored to quick reaction, our process identifies risks that would prevent delivery and implements mitigation strategies to meet goals at mission speed. Our team is expanding to do the big things that have never been done before - the things t

Ruby on Rails Developer

Talent Groups

Remote

Contract, Third Party

Experience: 5-8 Years . Required Skill: 5+ years of progressive software development/delivery experience with RubyMandatory Skills: Full stack Java Enterprise2+ years of experience working across a large codebase with responsibility for understanding how changes affect other parts of that codebaseProven ability to work in a fast-paced environment while maintaining adherence to standards and best practicesExperience leading small project teamOrganizational, analytical, and problem-solving skills

Systems Administrator - Intermediate

Johns Hopkins University AppliedPhysicsLaboratory

Laurel, Maryland, USA

Full-time

Description Are you ready to advance your IT career by taking on a wide-ranging role that spans from frontline technical support to more intricate system administration tasks? We are looking for a skilled Intermediate Systems Administrator who will ensure the reliability, security, and performance of our broad IT environments-including stand-alone systems, networked infrastructures, and AWS cloud solutions in specialized SAR and SCI facilities. This position is vital to maintaining operationa

Senior JBoss Engineer

ALTA IT Services

Washington, District of Columbia, USA

Full-time

Senior JBoss Engineer Remote - with occasional meetings in Washington, DC Must be located in the Washington, DC metro area Must be able to obtain Public Trust clearance $145,000-150,000 annually Required Skills and Experience: Experience with JBOSS, Java EE applications, Red Hat In-depth knowledge of Artifactory Proven experience with DevSecOps Engineering Clearance Required: Must be able to obtain and maintain AOPublic Trust Responsibilities: JBOSS Install JBoss EAP on supported platforms (L

Senior JBoss Engineer

System One

Washington, District of Columbia, USA

Contract

Senior JBoss Engineer Remote - with occasional meetings in Washington, DC Must be located in the Washington, DC metro area Must be able to obtain Public Trust clearance $145,000-150,000 annually Required Skills and Experience: Experience with JBOSS, Java EE applications, Red Hat In-depth knowledge of Artifactory Proven experience with DevSecOps Engineering Clearance Required: Must be able to obtain and maintain AOPublic Trust Responsibilities: JBOSS Install JBoss EAP on supported platforms (L

FLEX Senior Systems Engineer - SRE

Marriott International

Bethesda, Maryland, USA

Full-time

Job Description The Senior Systems Engineer - Site Reliability Engineering (SRE) is responsible for the reliability, scalability, and performance of mission-critical cloud and on-prem services that support millions of Marriot customers globally. This role involves overseeing incident management, driving automation efforts, and working closely with cross-functional teams to ensure alignment between SRE strategy and business objectives. Partners closely with Product Teams, Applications teams, Inf

Product Technician

Metrea Management, LLC

Maryland, USA

Full-time

Company Overview Metrea is a defense company dedicated to translating commercial innovation into solutions for the hardest problems in national security. With deep mission expertise, Metrea focuses on delivering effects-as-a-service across Aerospace, Electromagnetic & Cyber, Digital & Synthetic domains via its capability groups. Metrea also consists of six support groups (Operations, People, Finance, Legal, Strategy and Solutions) that guide the development of specific capabilities that Metrea's

Senior Engineer / Analyst for ISRT Scientific Applications

Johns Hopkins Applied Physics Laboratory (APL)

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 exp

Cyber Security/Systems Integration/Test Engineer

Leonardo DRS

Germantown, Maryland, USA

Full-time

Job ID: 112513 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 DRS RADA Technologies is seeking System Integration & Test Engineers to focus on test and evaluation of radar systems. Your immed

Systems Engineer - TS/SCI with Polygraph

General Dynamics Information Technology

Chantilly, Virginia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Engineering Job Qualifications: Skills: Amazon Web Services (AWS), DevOps, Linux Certifications: None Experience: 8 + years of related experience ship Required: Yes Job Description: Ensure the safety and security of our nation as a Systems Engineer at GDIT. You'll apply the

Field Application Engineer, Viasat Government

Viasat, Inc.

Germantown, Maryland, USA

Full-time

About us One team. Global challenges. Infinite opportunities. At Viasat, we're on a mission to deliver connections with the capacity to change the world. For more than 35 years, Viasat has helped shape how consumers, businesses, governments and militaries around the globe communicate. We're looking for people who think big, act fearlessly, and create an inclusive environment that drives positive impact to join our team. What you'll do As a Field Applications Engineer you will provide customer,

Systems Administrator

BlueHalo

Annapolis, Maryland, USA

Full-time

At BlueHalo, an AV Company, our system administrators are more than just button-pushers-we're the gatekeepers of operational excellence in secure environments. As a System Administrator, you'll be part of a team that manages mission-critical infrastructure for Identity and Access Management (IdAM) systems supporting national security efforts. If you're comfortable with both Linux and Windows environments, enjoy scripting and patching, and take pride in keeping systems locked down and mission-re

Cyber Security Engineer

SAIC

Reston, Virginia, USA

Full-time

Job ID: 2503854 Location: RESTON, VA, US Date Posted: 2025-03-27 Category: Cyber Subcategory: Cybersecurity Spec 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's Space & Intel Business Group, USG Mission and Information Technology Division, is seeking a Cyber Security Engineer to provide information security support. This position is in Reston, VA and

System Administrator II

General Dynamics Information Technology

Maryland, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Communication, Information Systems, Operating Systems (OS), System Security, Systems Software Certifications: None Experience: 4 + years of related experience ship Required: Yes Job Description: #ITPolyMD Provide support for implemen

Data Scientist

Booz Allen Hamilton

Fort Meade, Maryland, USA

Full-time

Job Number: R0217828 Data Scientist The Opportunity: As a data scientist, you're excited at the prospect of unlocking the secrets held by a data set, and you're fascinated by the possibilities presented by IoT, machine learning, and artifi cia l intelligence. In an increasingly connected world, massive amounts of structured and unstructured data open new opportunities. As a data scientist at Booz Allen, you can help turn these complex data sets into useful information to solve global challenges.

Java Developer

TEKsystems c/o Allegis Group

Reston, Virginia, USA

Full-time

Description Full Stack Senior Software Engineer Job Description We are looking for Full-Stack Software Engineers to help develop and support our mission critical applications. We are looking for highly motivated engineers who want to solve tough technical challenges and learn and incorporate new technologies into their skillset. In this role, you would use a tech stack including Java Spring Boot, Python , Stored Procedures and Microservices-based architecture in AWS. You will be engaged across t

Senior Software Engineer - Secret Clearance Preferred - Onsite

General Dynamics

Oakton, Virginia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: None Clearance Level Must Be Able to Obtain: Secret Public Trust/Other Required: None Job Family: Software Engineering Job Qualifications: Skills: Application Development, Software Development, Software Development Life Cycle (SDLC) Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: GDIT is seeking a Senior Software Engineer to join our team. ship required. GDIT will spo

Data Scientist

Booz Allen Hamilton

Maryland, USA

Full-time

Job Number: R0221768 Data Scientist The Opportunity: As a data scientist, you're excited at the prospect of unlocking the secrets held by a data set, and you're fascinated by the possibilities presented by IoT, machine learning, and artifi cia l intelligence. In an increasingly connected world, massive amounts of structured and unstructured data open new opportunities. As a data scientist at Booz Allen, you can help turn these complex data sets into useful information to solve global challenges.

Automated Test Framework Software Engineer TS/SCI Poly

Leidos

Annapolis, Maryland, USA

Full-time

Leidos has a new and exciting opportunity for an Automated Test Framework Software Engineer in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match