senior Jobs in district of columbia

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Senior System Engineer

Harmonia Holdings Group, LLC.

•

Washington, District of Columbia, USA

Full-time

Harmonia Holdings Group, LLC is an award-winning, rapidly growing federal government contractor committed to providing innovative, high-performing solutions to our government clients and focused on fostering a workplace that encourages growth, initiative, creativity, and employee satisfaction. Position: Senior System Engineer Location: Washington, DC - Fully Onsite Clearance: Top Secret with SCI Harmonia is currently seeking a Senior System Engineer who understands a wide range of technologies a
Posted 49 days ago | Updated 10 hours ago

Senior Electrical Engineer

Booz Allen Hamilton

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Arlington, Virginia, USA

Full-time

Job Number: R0222656 Electrical Engineer, Senior The Opportunity: Our energy resilience division focuses on leveraging Booz Allen's leadership and expertise in Defense requirements to deliver the best solutions capable of meeting the needs of the most demanding, innovative, and cutting-edge clients in the federal government. As an Electrical Engineer, you will be responsible for driving our team's delivery of energy system design services to clients focused on increasing energy resilience on t
Posted 28 days ago | Updated 2 hours ago

Senior Electrical Engineer

Booz Allen Hamilton

•

Arlington, Virginia, USA

Full-time

Job Number: R0224069 Electrical Engineer, Senior The Opportunity: Our energy resilience division focuses on leveraging Booz Allen's leadership and expertise in defense requirements to deliver the best solutions capable of meeting the needs of the most demanding, innovative, and cutting-edge clients in the federal government. As an Electrical Engineer, you will be responsible for driving our team's delivery of energy system design services to clients focused on increasing energy resilience on t
Posted 1 day ago | Updated 2 hours ago

Electrical Engineer, Senior

BOOZ, ALLEN & HAMILTON, INC.

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Arlington, Virginia, USA

Full-time

Electrical Engineer, Senior The Opportunity: Our energy resilience division focuses on leveraging Booz Allen's leadership and expertise in Defense requirements to deliver the best solutions capable of meeting the needs of the most demanding, innovative, and cutting-edge clients in the federal government. As an Electrical Engineer, you will be responsible for driving our team's delivery of energy system design services to clients focused on increasing energy resilience on their military install
Posted 15 days ago | Updated 9 hours ago

Senior Systems Engineer - Sustainment CPT Lead

QinetiQ US

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McLean, Virginia, USA

Full-time

Company Overview We are a world-class team of professionals who deliver next generation technology and products in robotic and autonomous platforms, ground, soldier, and maritime systems in 50+ locations world-wide. Much of our work contributes to innovative research in the fields of sensor science, signal processing, data fusion, artificial intelligence (AI), machine learning (ML), and augmented reality (AR). QinetiQ US's dedicated experts in defense, aerospace, security, and related fields a
Posted 1 day ago | Updated 1 hour ago

Senior Manager AI Solution Architect

Booz Allen Hamilton

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McLean, Virginia, USA

Full-time

Job Number: R0223469 AI Solution Architect, Senior Manager The Opportunity : Technology is no longer just a support function - it's becoming the core driver of how modern enterprises operate, adapt, and grow. As systems become more interconnected, vendor landscapes more fragmented, and business demands more urgent, the need for strong technical architecture leadership has never been greater. We're looking for a seasoned architect who can bring clarity to complexity, unify disparate tools and p
Posted 13 days ago | Updated 2 hours ago

Senior Data Engineer

Booz Allen Hamilton

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Washington, District of Columbia, USA

Full-time

Job Number: R0224254 Data Engineer, Senior The Opportunity: As a data engineer, 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 engineer, you know that organizing data can yield pivotal insights when it's gathered from disparate sources. W
Posted 14 hours ago | Updated 2 hours ago

FLEX Senior System Engineer - SRE

Marriott International

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Bethesda, Maryland, USA

Full-time

Job Description This is a temporary position. Position Summary: 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 c
Posted 26 days ago | Updated 1 hour ago

Senior O365 Engineer

SAIC

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Washington, District of Columbia, USA

Full-time

Job ID: 2506825 Location: WASHINGTON, DC, US Date Posted: 2025-07-28 Category: Information Technology Subcategory: Sys Administrator Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: None Clearance Level Must Be Able to Obtain: Public Trust Potential for Remote Work: Yes Description SAIC is Seeking a motivated, experienced Senior O365 Engineer with experiences in Microsoft Cloud Technologies to support Pension Benefit Guaranty Corporation (PBGC) in Washington,
Posted 55 days ago | Updated 11 hours ago

Data Engineer, Senior

BOOZ, ALLEN & HAMILTON, INC.

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Arlington, Virginia, USA

Full-time

Data Engineer, Senior The Opportunity: As AI and advanced analytics shift from research to operational deployment, the role of robust, flexible, and secure data infrastructure becomes mission-critical. You know that enabling real-world AI means solving hard data engineering problems-integrating graph databases, geospatial sources, real-time sensor data, and AI-native formats across cloud and edge environments. We need a data engineer with the depth and range to lead this kind of integration. A
Posted 16 days ago | Updated 19 hours ago

Senior Data Engineer

Booz Allen Hamilton

•

Arlington, Virginia, USA

Full-time

Job Number: R0222851 Data Engineer, Senior The Opportunity: As AI and advanced analytics shift from research to operational deployment, the role of robust, flexible, and secure data infrastructure becomes mission-critical. You know that enabling real-world AI means solving hard data engineering problems-integrating graph databases, geospatial sources, real-time sensor data, and AI-native formats across cloud and edge environments. We need a data engineer with the depth and range to lead this ki
Posted 23 days ago | Updated 2 hours ago

FLEX Senior Software Engineer - Salesforce OMS

Marriott International

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Bethesda, Maryland, USA

Full-time

Job Description This is a temporary position. Senior Software Engineer - Salesforce OMS Marriott International is seeking a Senior Software Engineer, Salesforce OMS for the implementation and on-going support of a new OMS & Commerce platform. The ideal candidate will be part of a collaborative project team, responsible for understanding business requirements, development, reviewing code, writing unit test scenarios, and fixing defects for in-use modules/applications. He/she will be responsible
Posted 38 days ago | Updated 1 hour ago

Senior Engineer, Software Systems- DC (R3539)

Shield AI Inc

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Washington, District of Columbia, USA

Full-time

Founded in 2015, Shield AI is a venture-backed defense technology company with the mission of protecting service members and civilians with intelligent systems. Its products include the V-BAT aircraft, Hivemind Enterprise, and the Hivemind Vision product lines. With offices in San Diego, Dallas, Washington, D.C., Boston, Abu Dhabi (UAE), Kyiv (Ukraine), and Melbourne (Australia), Shield AI's technology actively supports U.S. and allied operations worldwide. For more information, visit Follow Sh
Posted 35 days ago | Updated 1 hour ago

Senior Systems Engineer

Cayuse Holdings, LLC

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Washington, District of Columbia, USA

Full-time

Overview The Work The Senior Systems Engineer is responsible for supervising, coordinating, designing, developing, and performing additions and changes to network hardware, infrastructure server environments, operating systems, and attached devices. This includes investigation, analysis, recommendation, configuration, installation, and testing of new network hardware and software. The Systems Engineer provides direct support in the day-to-day operations of network hardware and operating systems,
Posted 36 days ago | Updated 10 hours ago

Sr. Systems Engineer

Convergenz

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Tysons, Virginia, USA

Full-time

The most important qualities we are looking for in Senior Systems Engineer: Technical Abilities: Hands-on experience leading and implementing projects in a Microsoft environment.Managerial Experience: Proven track record of supervising and mentoring others (3+ years preferred); this person will oversee 2 employees.Problem-Solving Skills: Ability to independently troubleshoot and resolve issues proactive and resourceful rather than consultant-dependent.Communication Skills: Strong communication a
Easy Apply
Posted 19 days ago | Updated 19 days ago

Sr. Systems Engineer

Navigant Consulting

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Washington, District of Columbia, USA

Full-time

Job Family: Systems Engineering Travel Required: None Clearance Required: Active Top Secret (TS) What You Will Do: Our Sr. Systems Engineer will provide design, engineering, and administration services for a Law Enforcement Agency. Acts independently under general direction. Provides technical assistance and advice on complex activities. Formulates / defines specifications, develops / modifies / maintains complex systems and subsystems, using vendor engineering releases and utilities for ove
Posted 48 days ago | Updated 1 hour ago

Sr Quality Assurance Analyst (Cityworks Exp. is required) at Washington DC (Hybrid)

SanKar Inc

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Washington, District of Columbia, USA

Contract

Position : Sr Quality Assurance Analyst (Cityworks Exp. is required) at Washington DC (Hybrid) Location: Washington DC (Hybrid) Type: Contract Job Description This role expects to lead small-medium size projects (Waterfall and Agile). Responsibilities 15 years of IT QA experience ideally with Development and Management background. Developing, implementing, and reviewing Use Cases, Test Cases, and Test Scripts. Manual and automation testing. Perform functional testing of web services using SOAP
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Posted 20 days ago | Updated 2 days ago

Senior Cybersecurity Engineer- 5 days onsite Rosslyn, VA

Motion Recruitment Partners, LLC

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Arlington, Virginia, USA

Full-time

Senior Cybersecurity Engineer This client is looking for someone who has experience interacting with federal agencies such as DARPA, DCSA, and OSI PJ, managing compliance efforts in eMASS, maintaining and auditing program security packages, and administering secure computer networks. You'll be responsible for ensuring compliance with federal and DoD cybersecurity standards, as well as developing and maintaining System Security Plans (SSPs) and supporting documentation. The candidate must have an
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Posted 37 days ago | Updated 9 hours ago

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
Posted 47 days ago | Updated 1 hour ago

Senior Security Engineer - Cyber Threat Mitigation Lead

Electronic Consulting Services, Inc (ECS Federal)

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Washington, District of Columbia, USA

Full-time

Job Description ECS is seeking a Senior Security Engineer - Cyber Threat Mitigation Lead to work in our Washington, DC office. ECS Federal is a leading information security and information technology company in Washington, DC. We are looking to hire a Senior Security Engineer - Cyber Threat Mitigation Lead to lead a cross functional team (Cyber Threat Intelligence, Hunt, and Analytics) on a long-term contract in Washington DC. The position is full time/permanent and will support a US Governmen
Posted 23 days ago | Updated 10 hours ago