46 systems engineer intern jobs at 23 companies in Frederick, MD

PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
2w
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Systems Engineer III
Odenton or Fort Meade
OnsiteFull Time
Quevera
Quevera: Software engineering and cloud solutions for government and defense.
Active TS/SCI with Polygraph required. Proven engineering experience with Microsoft Defender for Endpoint and Trellix HX, MECM/SCCM/Intune deployment, Kusto Query Language (KQL), OpenIOC/YARA, and Windows/Linux/macOS internals. DoD 8570/8140 IAM Level II/III compliance required.
Microsoft Defender for Endpoint (MDE), Trellix HX, MECM, SCCM, Intune, Kusto Query Language (KQL), YARA, OpenIOC, Windows, Linux, macOS, Jira, Confluence, Cameo, Model-Based Systems Engineering (MBSE)
2mo
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Cloud Systems Engineer
Reston, Virginia, United States
$148k-$267k/yr OnsiteFull Time
Parsons
ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.
7+ YOETop Secret/SCI clearance; Bachelor's in related field or equivalent experience; 7-14 years in systems engineering; AWS, Terraform; Java; MongoDB; 30-40% international travel; active passport.
AWS, Terraform, Java, MongoDB
1mo
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Staff Systems Engineer - International Travel Required
Hanover, Maryland, United States
$124k-$218k/yr HybridFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
Active US Top Secret/SCI clearance with polygraph and valid US passport required. Experience with systems integration, test plan development, Windows/Linux/UNIX/RHEL, Python/Bash, cyber security requirements, and leading integration & test; willing to travel internationally 2-4 times/year.
Windows, LINUX, UNIX, RHEL, Python, Bash, Elastic Search, Data Flow, Docker, Kubernetes
1mo
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Communications Systems Analyst Intern
Arlington, Virginia, United States
OnsiteInternship
Telesat
TelesatNasdaq: TSAT: Operates satellites providing global communications and broadband internet services.
U.S. citizen pursuing a Bachelors or Masters in engineering/technical field; understanding of link budgets, antenna patterns, and optical communications; strong technical writing; ability to complete STK Level 1 and 2 certification.
Ansys Systems Tool Kit (STK)
1mo
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IT Systems Engineer, Client Platform Engineer
Boston or New York City or Washington or United States
$325k-$360k/yr HybridFull Time
Anthropic
Anthropic: Developing safe and reliable artificial intelligence systems.
8+ YOEBachelor's or equivalent, 8+ years building secure IT systems, experience managing large MDM fleets, macOS/Windows internals, Python/shell/PowerShell, GitOps/CI/CD, public cloud and device telemetry experience.
Python, Shell scripting, PowerShell, Swift, Go, MDM, Jamf, Intune, Workspace ONE, GitOps, CI/CD, Claude, macOS, Windows
2mo
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AI Systems and Automation Intern
Arlington, Virginia, United States
OnsiteSeasonal, Internship
Toffler Associates
Toffler Associates: Strategic advisory firm providing future-focused foresight and planning.
Enrollment in or recent completion of a degree in Computer Science, Data Science, Engineering, or related field; familiarity with cloud platforms (AWS, Google Cloud), big data (Hadoop, Spark), and Git; strong problem-solving and communication skills; must be legally authorized to work in the United States without visa sponsorship.
AWS, Google Cloud, Hadoop, Spark, Git
1mo
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Solar Engineer Intern/Co-op Fall 2026 - Energy Solutions
Fairfax, Virginia, United States
OnsiteInternship
Legence
LegenceNasdaq: LGN: Engineering and maintenance services for mission-critical building systems.
Pursuing a BSEE (sophomore or junior preferred); CAD experience helpful; proficiency with Microsoft Word and Excel; strong communication skills; ability to travel for field work; hands-on PV system exposure through co-op.
CAD, Microsoft Word, Microsoft Excel
3d
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Software Developer, GO Systems
Austin or Menlo Park or Washington or New York City
$171k-$240k/yr OnsiteFull Time
Meta
MetaNASDAQ: META: Develops social networking platforms and virtual reality technologies.
8+ YOEBachelor's degree or equivalent,8+ years building and shipping full‑stack projects,experience scaling internal tooling and driving multi‑team technical roadmaps,ability to communicate across global teams.
PHP, Hack, JavaScript, React
1mo
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Senior Network / Communications Engineer
Reston, Virginia, United States
HybridContract
Global C2 Integration Technologies
Global C2 Integration Technologies: Provides AI and engineering solutions for defense missions.
10+ YOEBachelor's degree in related field; 10+ years network/communications experience; strong AWS networking; Terraform; VSAT and terrestrial systems; TS/SCI clearance; international travel.
AWS, Terraform, VSAT, Cisco Routing and Switching, VPN, Firewall
2mo
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Intern Fleet Support Engineering (McLean, VA, US)
McLean, Virginia, United States
OnsiteInternship
SES
SESEuronext Paris: SESG: Provides global satellite-based video and data connectivity services.
Avionics and aircraft systems troubleshooting; RF/CDMA familiarity; read schematics; maintain manuals; analyze data logs; drive root-cause analysis and improvements.
Avionics, RF testing equipment, Test equipment, Network tools, Linux, Windows, IP networking
2mo
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Application Services Software Engineer
Clarksburg, Maryland, United States
$105k-$135k/yr OnsiteFull Time
Forterra
Forterra: Develops autonomous ground vehicle systems and software for defense.
2+ YOE2-3 years software engineering, systems integration, DevOps, or internal tools; strong C#, .NET, APIs, scripting, SQL; experience building or supporting internal applications and automations.
C#, DOTNET, SQL, PowerShell, Power Automate, Microsoft 365, Azure
2mo
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Software Engineering Intern
Washington, District of Columbia, United States
HybridInternship
Social Impact
Social Impact: Provide management consulting for global development effectiveness.
0+ YOEPursuing CS/SE/Data Science degree; strong problem-solving; able to work independently and with others; interest in scalable enterprise systems; US citizen; DC area; internship; background check.
Node.js, React, Python, PostgreSQL, REST APIs, Git/GitHub
3w
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Vulnerability Research Engineer
Kyiv or Washington or Tel Aviv or London
RemoteFull Time
Commit
Commit: End-to-end software, cloud, and cybersecurity consulting and development.
2+ YOE2+ years in vulnerability research/offensive security or low-level systems engineering; reverse engineering, binary analysis, fuzzing, exploit development experience; strong OS internals and debugging skills; ability to ship production tools.
2mo
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Embedded Software Engineer
Shady Grove, Pennsylvania, United States
OnsiteFull Time
Manitowoc
ManitowocNYSE: MTW: Manufactures and services heavy-duty cranes and lifting equipment.
10+ YOESenior embedded software engineer with 10+ years in real-time/safety-critical systems; leadership experience; strong C/C++ skills; knowledge of safety standards; travel both international and domestic.
C, C++, RTOS, CAN, J1939, LIN, Ethernet, MATLAB/Simulink, Git, Azure DevOps, Linux
1mo
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CNO Developer
Hanover or Aurora
$115k-$190k/yr OnsiteFull Time
ManTech
ManTech: Provides technology solutions for defense and intelligence agencies.
2+ YOEBS+4yrs or MS+2yrs or HS+8yrs; experience with Python or C/C++; troubleshooting and debugging; networking, low-level system internals, reverse engineering and Atlassian tools preferred; active TS/SCI w/Poly required.
Python, C, C++, TCP/IP, JIRA, Confluence, Crucible, Assembly
2mo
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CNO Developer Level 1
Fort Meade, Maryland, United States
$120k-$150k/yr OnsiteFull Time
Markon Solutions
Markon Solutions: Provides professional program and engineering services to federal agencies.
5+ YOEActive TS/SCI with polygraph; BS in CS/Engineering with 5+ years; C/C++/Python; OS internals; reverse engineering; assembly; debugging; embedded systems; network protocols; exploit mitigations; modern C++.
IDA Pro, Ghidra, Binary Ninja, objdump, gdb, WinDbg, OllyDbg, JTAG/BDI
2mo
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Software Engineer - Platform & Infrastructure
Washington or San Francisco
$165k-$220k/yr HybridFull Time
Promise
Promise: Providing payment and financial assistance systems for government agencies.
5+ YOE5+ years of software or infrastructure experience in a platform/infra/SRE role; production Kubernetes; Terraform IaC; internal systems; on-call; AI tools experience.
Kubernetes, Terraform, Google Cloud Platform, CI/CD, ArgoCD, Typescript, Golang, AI tools
2mo
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CNO Developer Level 1
Fort Meade, Maryland, United States
$120k-$150k/yr OnsiteFull Time
Markon
Markon: Provides professional services and management consulting for government agencies.
5+ YOEActive TS/SCI with poly; BS in Computer Science, Engineering, or related field with 5+ years; experience with Assembly, C, C++, and/or Python; OS internals; vulnerability research and reverse engineering; familiarity with reverse engineering tools; debugging tools; embedded systems exposure; exploit mitigations such as DEP/ASLR; TCP/IP knowledge; t...
Assembly, C, C++, Python, IDA Pro, Ghidra, Binary Ninja, objdump, gdb, WinDbg, OllyDbg, JTAG/BDI
1mo
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Engineering Director, Business Applications
San Francisco or San Jose or New York City or Seattle or Austin or Washington or California or Massachusetts or New Jersey or Washington or United States
$264k-$402k/yr RemoteFull Time
Thumbtack
Thumbtack: Online marketplace connecting homeowners with local service professionals.
Senior engineering leader with experience managing managers, building internal platforms and business applications (Salesforce-centered), and delivering AI-enabled, auditable workflows across systems of record.
Salesforce
1mo
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Configuration Management Analyst
Arlington or Crystal City
HybridFull Time
BTAS
BTAS: A woman-owned small business delivering IT, engineering, and program management capabilities to DoD programs.
6+ YOEBachelor's or Associate's degree plus 4 years; 6 years in program management, technical or business analysis; 3 years in aircraft systems CM; CM experience with DoD/international aircraft programs.