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69 io engineer jobs at 41 companies in Frederick, MD

1d
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Distributed Operations Senior Systems Engineer (IO)
Fort Meade, Maryland, United States
OnsiteFull Time
SAIC
SAICNASDAQ: SAIC: Provides government and defense clients with technology and engineering services.
12+ YOETS/SCI with CI polygraph; Bachelor's in Science/Engineering/Math +14 yrs or Master's +12 yrs (4 yrs experience may substitute); ability to brief senior government personnel and collaborate with stakeholders.
Model Based Systems Engineering (MBSE)
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1d
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Distributed Operations Senior Systems Engineer (IO)
Fort Meade, Maryland, United States
$160k-$200k/yr OnsiteFull Time
SAIC
SAICNYSE: SAIC: Provides engineering, IT, and mission support services to government.
12+ YOETS/SCI+CI polygraph required; Bachelor's in science, engineering or math with 14+ years or Master's with 12+ years (or 4 years experience in lieu of advanced degree); strong written/oral communication and stakeholder engagement skills.
Model Based Systems Engineering (MBSE)
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1w
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Apple iOS Developer
Dulles, Virginia, United States
$120k-$200k/yr OnsiteFull Time
Markon Solutions
Markon Solutions: Provides professional program and engineering services to federal agencies.
4+ YOEActive TS/SCI with polygraph, 4+ years experience with BS (or 6 additional years substitution), Python and C development, reverse engineering iOS/MacOS, PoC exploit development, git experience.
Python, C, git, Objective-C, Swift, C++
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1w
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Apple iOS Developer
Dulles, Virginia, United States
$120k-$200k/yr OnsiteFull Time
Markon
Markon: Provides professional services and management consulting for government agencies.
4+ YOEActive TS/SCI with polygraph, BS or equivalent (4 years plus BS; 6 additional years may substitute), 4+ years experience, Python and C development/testing, reverse engineering iOS/MacOS, git, Objective-C/Swift/C++ familiarity.
Python, C, git, Objective-C, Swift, C++, ARM, X86
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4d
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Lead AI Engineer (Mobile Technology)
Owings Mills, Maryland, United States
$145k-$247k/yr HybridFull Time
T. Rowe Price
T. Rowe PriceNASDAQ: TROW: Global investment management firm providing funds and retirement services.
8+ YOEBachelor's or Master's in CS/Engineering or equivalent experience; 8+ years in software/mobile engineering; hands-on iOS/Android development; experience building AI-enabled or agentic engineering workflows; strong architecture and leadership skills.
Claude Code, Swift, SwiftUI, Kotlin, Jetpack Compose, Java, Python, GitHub, CI/CD, Jira, Confluence, Figma
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1mo
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Network Engineer - Senior
Sterling, Virginia, United States
$133k-$226k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
6+ YOE6+ years network engineering experience, Bachelor's required (Master's preferred). Top Secret/SCI polygraph clearance, TCP/IP, routing, SD‑WAN, VoIP, Cisco IOS, INFOSEC/COMSEC, O&M, virtualization, cloud, SecDevOps.
Cisco IOS, VMware, AWS, Azure, SD-WAN, VoIP, SecDevOps, Agile
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1w
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Senior Principal Cyber Mobile CNO Engineer
Sterling or Chantilly
$122k-$253k/yr OnsiteFull Time
Nightwing
Nightwing: Provides advanced cyber and intelligence solutions for national security.
5+ YOETS/SCI with polygraph, 5+ years C/C++ on Unix/Linux, Android/iOS mobile development, mobile vulnerability assessment, reverse engineering, degree in a technical discipline.
C, C++, Unix, Linux, Make, CMake, Hex-Rays, Ghidra, AOSP, Bitbucket, Bamboo, JIRA, git, ARM64, ARM32
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2w
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Senior Systems Engineer
Boonsboro, Maryland, United States
OnsiteFull Time
Changeis
Changeis: Provides systems engineering and infrastructure solutions to ensure resilient, secure, and modern client IT environments.
Design and maintain resilient infrastructure (Linux, Windows, Cisco IOS, cloud), implement HA/DR and failover, lead containerization (Kubernetes/OpenShift/Docker), ensure security compliance and vulnerability remediation, and support DR exercises and system testing.
Linux, Windows, Cisco IOS, cloud, Kubernetes, OpenShift, Docker, CI/CD, RBAC, AI, ML
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1w
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Network Engineer - Senior
Sterling, Virginia, United States
OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Designs and manufactures advanced defense and aerospace systems.
6+ YOEMinimum 6 years relevant experience, Bachelor’s required (Master’s preferred). Must obtain Top Secret/SCI with polygraph. Skills: TCP/IP, routing, Cisco IOS, LAN/WAN/VPN/SD-WAN, virtualization, cloud (AWS/Azure), INFOSEC/COMSEC.
Cisco IOS, VMware, AWS, Azure
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1mo
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Network Engineer and Cisco Specialist, Senior
Washington or McLean
$78k-$176k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
5+ YOE5+ years network engineering experience, 2+ years Cisco experience, knowledge of Cisco ASA Firepower, Nexus, routers, IOS, GRE, IBGP, Juniper, MPLS L3VPN; Secret clearance and Bachelor\u0002s degree required.
Cisco ASA Firepower, Cisco Nexus, Cisco routers, Cisco Systems IOS, Juniper, MPLS L3VPN, GRE, IBGP, Cisco TMS, Cisco Voice
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1mo
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iOS Developer
Reston, Virginia, United States
OnsiteFull Time
BigBear.ai
BigBear.aiNYSE: BBAI: AI-powered decision intelligence for complex mission environments.
3+ YOEActive U.S. Top Secret clearance (or ability to obtain), 3+ years experience, proficiency in Python and C, experience reverse engineering iOS/macOS, proof-of-concept exploit development, and git.
Python, C, git, Objective-C, Swift, C++, iOS, macOS, ARM, x86
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2w
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iOS Engineer, Customer Growth
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
$179k-$232k/yr RemoteFull Time
Thumbtack
Thumbtack: Online marketplace connecting homeowners with local service professionals.
Experienced iOS engineer with Swift or Objective-C, proven track record shipping consumer apps, cross-functional collaboration, testing, releasing, and maintaining App Store apps.
Swift, Objective-C
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2w
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MAC OS Engineer Team Lead
Arlington, Virginia, United States
OnsiteFull Time
Chenega Corporation
Chenega Corporation: Provides professional government, defense, and facility support services.
5+ YOEHigh school diploma, 5+ years experience, DoD IAT Level II required, DoD Secret clearance required, macOS/iOS enterprise administration, MDM (JAMF, Intune, Workspace ONE), DISA STIGs and RMF, scripting and automation, vulnerability remediation and ACAS support.
macOS, iOS, JAMF, Intune, Workspace ONE, Active Directory, ACAS, DISA STIGs, RMF
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2w
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iOS Engineer
Washington, District of Columbia, United States
$125k-$140k/yr OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesNational Stock Exchange of India: TCS: Global provider of IT services, consulting, and business solutions.
8+ YOE8+ years iOS experience with Swift, PassKit/Apple Pay, MapKit/CoreLocation, NearbyInteraction/CoreNFC, secure coding, API integrations, CI/CD, BLE, and payment compliance.
Swift, PassKit, Apple Pay, MapKit, CoreLocation, NearbyInteraction, CoreNFC, Google Maps SDK, Location Services API, CI/CD, BLE
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1mo
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iOS-Savvy CNO Developer
Fort Meade or Maryland or Virginia or Colorado or Texas or Utah or Alaska or Hawaii or North America
OnsiteFull Time
Wyetech
Wyetech: Provides professional engineering services for government and commercial sectors.
1+ YOEUS citizenship and active TS/SCI with agency polygraph required. Degree in Computer Science/Computer Engineering, software development experience, at least 1 year of cybersecurity/CNO-specific development, iOS internals and reverse engineering skills.
iOS, Android
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6d
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iOS CNO Software Engineer
Chantilly, Virginia, United States
OnsiteFull Time
REDLattice
REDLattice: Provides advanced cybersecurity software and vulnerability research services.
Experience developing iOS software, exploit development, reverse engineering, kernel and OS internals, strong programming in Objective-C/Swift/C/C++/Python, active TS/SCI with polygraph, bachelor's degree in a technical field.
Objective-C, Swift, C, C++, Python, LLDB, IDA Pro, Ghidra, Frida, Hopper, Git, Bitbucket, ARM64
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2mo
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Senior iOS Engineer
McLean, Virginia, United States
OnsiteFull Time
Range
Range: AI-powered platform for wealth management and financial planning.
5+ YOE5+ years mobile development; Swift and SwiftUI expertise; modular, testable iOS architecture; mentoring; strong communication.
Swift, SwiftUI
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3mo
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iOS-Savvy CNO Developer
Fort Meade, Maryland, United States
$106k-$118k/yr OnsiteFull Time
ARSIEM
ARSIEM: Provides cybersecurity and software engineering to government agencies.
1+ YOEActive TS/SCI with polygraph; US citizen. 1 year cybersecurity/CNO development; 1 year software development. iOS internals and reverse engineering experience. Bachelor’s in CS/CE; MS/MA optional.
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1mo
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Senior iOS Engineer, Crypto Trading
Menlo Park or New York City or Bellevue or Washington or Denver or Westlake or Chicago or Lake Mary or Clearwater or Gainesville or Toronto
$153k-$230k/yr HybridFull Time
Robinhood
RobinhoodNASDAQ: HOOD: Provides a commission-free platform for investing and financial services.
6+ YOE6+ years iOS experience, strong Swift and modern iOS frameworks knowledge, scalable mobile architecture, real-time/data-intensive app experience preferred, mentoring and technical leadership experience, US citizen or lawful permanent resident required.
Swift, iOS
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2w
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Lead Mobile Engineer, iOS (Enterprise Platforms Technology)
McLean or New York City or Chicago
$179k-$246k/yr OnsiteFull Time
Capital One
Capital OneNYSE: COF: Financial services offering credit cards, banking, and loans.
4+ YOEBachelor's degree, 4+ years software engineering, 3+ years building iOS apps with Swift, experience with Kotlin and Agile, mentoring experience, strong communication and problem solving.
Swift, Kotlin
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