Annapolis Junction, Maryland, United States · On-site
$154k–$278k/yr
Senior+
Leidos has a new and exciting opportunity for a Sr. Systems Engineer in our Intel Sector's Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operation…
Skills: System Architecture, Requirements Analysis, Network Design, Data Flow Analysis, Secure Systems Engineering
Annapolis Junction, Maryland, United States · On-site
$83k–$149k/yr
Senior+
Technical Writer Leidos has a new and exciting opportunity for a Technical Writer in our Intel Sector's Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Netw…
Skills: Technical Writing, Editing, Proofreading, Microsoft Office Suite, Configuration Management
Annapolis Junction, Maryland, United States · On-site
Senior+
We are seeking a Cloud Software Engineer to develop, maintain, and enhance complex and diverse Big-Data Cloud systems based upon documented requirements. In this role, you will directly contribute to all stages of back-e…
Skills: Java, Cloud Computing, Hadoop Eco-System, Distributed Computing, Information Retrieval
Annapolis Junction, Maryland, United States · On-site
$99k–$225k/yr
Senior
DNEA and Signals Analyst The Opportunity: Do you enjoy the thrill of the hunt? Are you motivated by the head-to-head challenge of gaining access to well-protected networks? As a network exploitation professional, you kno…
Annapolis Junction, Maryland, United States · On-site
$160k–$200k/yr
Senior+
T-Rex is looking for a fully cleared Outreach SME4 to work on a program in the Annapolis Junction, Maryland area in support of the Intelligence Community. Responsibilities: This Position Is An Onsite Role Provide direct …
Annapolis Junction, Maryland, United States · On-site
Senior+
Swift is a privately held, mission-driven and employee-focused services and solutions company headquartered in Reston, VA. Our capabilities include Software Development, Engineering & IT, Data Science, Cyber Enablement, …
Skills: Turkish Language Proficiency, Translation, Transcription, Gisting, SIGINT Operations
The Swift Group, LLC
Reverse Engineer
Annapolis Junction, Maryland, United States · On-site
Senior+
Swift is a privately held, mission-driven and employee-focused services and solutions company headquartered in Reston, VA. Our capabilities include Software Development, Engineering & IT, Data Science, Cyber Enablement, …
Annapolis Junction, Maryland, United States · On-site
$175k–$225k/yr
Senior+
A day in the life: We are seeking a highly skilled Senior Software Engineer to support the development, enhancement, integration, and sustainment of mission-critical applications, frameworks, and services that enable fro…
Annapolis Junction, Maryland, United States · On-site
Senior
Themis Insight solves difficult business, IT, and analytic problems by addressing the whole problem – not just the symptoms – using interdisciplinary approaches that are both practical and innovative. We provide fresh al…
Annapolis Junction, Maryland, United States · On-site
$85k–$100k/yr
Senior
Job TitleTechnical WriterWhy IDS? IDS believes in resolving conflict, building innovative approaches to do so. Combining operational expertise with an intimate understanding of today’s greatest challenges, we bring our c…
Skills: Technical Writing, Documentation Lifecycle Management, Knowledge Management, Microsoft Word, Microsoft PowerPoint
Annapolis Junction, Maryland, United States · On-site
$87k–$198k/yr
Senior
IT Project Manager The Opportunity: You know that project managers touch every single part of a business and wear multiple hats: from caring for the client and their meaningful project goals to participating in business …
Annapolis Junction, Maryland, United States · On-site
$104k–$218k/yr
Mid level$1.5B raised
Job Title: Korean Operational Language Analyst Job Category: Language Services Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to 1…
Skills: Korean Language Proficiency, SIGINT Operations, Cryptologic Language Processing, Translation, Transcription
Annapolis Junction, Maryland, United States · Hybrid
$170k–$230k/yr
Senior+
***An active or rein-statable TS/SCI with Polygraph security clearance is REQUIRED. Please do not apply if you currently do not possess this level of clearance.*** Are you a Senior Software Engineer who is ready for a ne…
Skills: Prometheus, Grafana, Cloudwatch, Java, Spring Boot
Annapolis Junction, Maryland, United States · On-site
$87k–$198k/yr
Senior+
Capture Manager The Opportunity: Drive the capture of business development opportunities, including shaping, proposal, contract start-up, and execution. Apply advanced skills, extensive technical expertise, and full indu…
Annapolis Junction, Maryland, United States · On-site
$112k–$196k/yr
Senior+$700M raised
In a world of possibilities, pursue one with endless opportunities. Imagine Next! At Parsons, you can imagine a career where you thrive, work with exceptional people, and be yourself. Guided by our leadership vision of v…
Annapolis Junction, Maryland, United States · On-site
Senior
Acclaim Technical Services, founded in 2000, is a leading cyber operations, intelligence solutions and operations, network infrastructure, engineering and business enablement and enterprise operations company supporting …
Skills: Ghidra, FPGA Tools, Software Engineering, System Analysis, Network Design
Annapolis Junction, Maryland, United States · On-site
Mid level
When You Love the Work You Do, Any Mission Is Possible Position: Software Engineer/ Data Analyst ***(Active Clearance with a Polygraph is Required) We’re on multiple contracts and have many opportunities. It is encourage…
Annapolis Junction, Maryland, United States · On-site
Senior
When You Love the Work You Do, Any Mission Is Possible Position: Software Engineer (Large Scale Web Applications) ***(Active Clearance with a Polygraph is Required) We’re on multiple contracts and have many opportunities…
Skills: JavaScript, TypeScript, Python, Distributed Web Applications, DevOps Automation
Annapolis Junction, Maryland, United States · On-site
Senior
When You Love the Work You Do, Any Mission Is Possible Position: Senior AI Engineer ***(Active Clearance with a Polygraph is Required) We’re on multiple contracts and have many opportunities. It is encouraged if applican…
Skills: Python, LLM Orchestration, RAG, Data Engineering, Vector Databases
Annapolis Junction, Maryland, United States · On-site
$87k–$198k/yr
Entry level
Test Engineer The Opportunity: Test software following a formal automated testing method using various telephony and networking hardware spanning multiple hardware platforms. Perform baseline, integration, system, and re…
Skills: Automated Testing, Python, Test Script Development, System Testing, Test Case Creation
Sign up with Clera and we'll reach out the moment a role actually fits you — no more spraying applications into the void.
$154k–$278k/yr
Full-time
postgraduate degree
Paid Time Off, Paid Holidays, 401K With Company Match, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling
Posted 82d ago
~40 hrs/week
Responsibilities
Design and develop new capabilities for complex systems within a Scaled Agile Framework environment. Provide technical guidance for system architecture, network implementation, and risk assessments across geographically distributed components.
Requirements
Requires a postgraduate degree with 13-20 years of experience and an active TS/SCI with Polygraph clearance. Must have deep expertise in system architecture, data center infrastructure, and secure systems engineering.
Full job description
Leidos has a new and exciting opportunity for a Sr. Systems Engineer in our Intel Sector's 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 and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security!
Job Summary
A Senior Systems Engineer is needed to join a high performing agile team using the Scaled Agile Framework (SAFe) methodology. Candidates must possess a high level of in-depth expertise necessary to design and develop new capabilities for a complex system with exacting interface, performance, and security requirements. The selected individual will provide system engineering expertise in several of the following areas: architecture, design, development, requirements analysis, data flow, network design/implementation, testing, and documentation. She/he will analyze user requirements, system architecture, and system requirements specifications, provide systems engineering expertise, and develop system architecture and system design documentation. Responsibilities include supporting and providing guidance for system development and implementation planning through assessment of system engineering plans and system integration and test plans; supporting the development of system configuration documentation, including designs for capacity and performance planning; and performing engineering activities such as risk assessments and analyses of alternatives for a variety of system related issues and concerns. Responsibilities may also include helping to create test procedures and defining task success criteria.
Primary Roles and Responsibilities
Provide guidance and support for system engineering of large-scale systems, major system elements, and interfacing systems that are part of a large complex network environment with geographically distributed components.
Provide technical guidance and support for future system enhancements and design.
Update System Engineering Documentation.
Provide Analysis of Alternatives (AoA) or similar evaluation methodologies.
Interface with Program Management, System and Software Integration Engineers, Test Engineers, Information Assurance Engineers, and other project team members in an Agile environment.
Develop and implement system engineering practices ensuring the proper degree of engineering rigor is applied to all assigned tasks.
Communicate with and effectively collaborate with internal technical professionals on a day-to-day basis, and with representatives from customer organizations when necessary.
Actively participate in program increment planning and related Agile team activities.
Provide hands on technical assistance to engineering teams for data gathering and auditing purposes throughout multiple data centers.
Basic Qualifications
Masters with 15 – 20 years of prior relevant experience or Doctorate with 13 – 16 years of prior relevant experience.
Must have in-depth experience in several of the following areas: system architecture, design and development, requirements analysis, data flow design/analysis, network design/implementation, testing, technical system documentation.
Must have experience or strong familiarity with data centers and/or server rooms, to include the following: Rack based Servers, Network Switches, KVM's, Routers, Backup and Recovery devices, Firewalls, and security appliances.
Must have at least 1-3 years of experience with infrastructure components (Servers, Switches, Firewalls, and other Enterprise Infrastructure hardware).
Must have at least 5 years of experience working on system architecture design, building, and integration.
Must have at least 5 years of experience working on large complex system architectures.
Must have requirements verification traceability experience.
Must have experience analyzing user requirements, system architecture, and/or system requirements specifications.
Must have experience in discovery, research and analysis for hardware and software transitions.
Must have experience gathering information related to the lifecycle of equipment and software.
Must possess a solid understanding of secure systems engineering and development.
Must be comfortable working on multiple systems and components simultaneously in various configurations.
Must be able to effectively plan and prioritize tasking and communicate clearly regarding technical options and trade-offs.
Must be capable of performing systems engineering activities in support of Agile teams on a large program.
Must be committed to adopting, adhering to, and championing best practices.
Clearance Required: Must have TS/SCI with Polygraph on day one. This is firm.
Preferred Qualifications
In-depth experience transitioning legacy systems to new architectures.
Experience with model-based systems engineering.
Experience with risk management/risk register.
Experience with the Scaled Agile Framework (SAFe) methodology or as a member of an Agile team.
Experience working as an admin on Windows Server and Linux Server platforms.
At Leidos, the opportunities are boundless. We challenge our staff with interesting assignments that allow them to thrive professionally and personally. For us, helping you grow your career is good business. We look forward to learning more about you – apply today.
careers.leidos.com/CONMD
CSSKEY
CONMD
If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.
Original Posting:
June 22, 2026
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Pay Range:
Pay Range $154,050.00 - $278,475.00
The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
Related keywords
TS/SCI PolygraphSystems EngineeringSAFeCNOSIGINTCryptographic Key ManagementData CentersRack ServersNetwork SwitchesKVMRoutersFirewallsSecurity AppliancesModel-Based Systems EngineeringWindows ServerLinux Server
Leidos is an innovation company rapidly addressing the world’s most vexing challenges in national security and health.
Industry
Defense and Space Manufacturing
Company size
10,001+ employees
Founded
1969
Headquarters
Reston, Virginia
LinkedIn followers
571,848
Leidos is a Fortune 500® innovation company rapidly addressing the world’s most vexing challenges in national security and health. The company's global workforce of 48,000 collaborates to create smarter technology solutions for customers in heavily regulated industries. Headquartered in Reston, Virginia, Leidos reported annual revenues of approximately $15.4 billion for the fiscal year ended December 29, 2023.
Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®.
Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos.
Your most important work is ahead, visit careers.leidos.com for our latest opportunities.
Offices: 1750 Presidents St, Reston, Virginia 20190, US · 11955 Freedom Drive, Reston, VA 20190, US · 1145 N 2nd St, Leavenworth, KS 66048, US · 9600 Great Hills Trail, Austin, TX 78759, US · 221 3rd St, Newport, RI 02840, US
How much do Security & Safety jobs in Annapolis Junction, MD pay?
Based on 697 listings with disclosed salaries, most security & safety jobs in Annapolis Junction, MD pay between $88k–$253k per year. Individual offers vary with seniority, company size, and specialization.
How many Security & Safety jobs are open in Annapolis Junction, MD right now?
There are currently 855 open security & safety positions in Annapolis Junction, MD listed on Clera. New openings are added daily as companies post roles.
Which companies are hiring for Security & Safety roles in Annapolis Junction, MD?
Companies currently hiring include Captivation, General Dynamics Information Technology, Peraton, Wyetech, LLC, Booz Allen Hamilton, among others. Browse the listings above to see every active employer.
Are there remote or hybrid Security & Safety jobs in Annapolis Junction, MD?
Yes — 99 of the 855 open security & safety positions offer remote or hybrid work (3 remote, 96 hybrid).
How do I apply for Security & Safety jobs in Annapolis Junction, MD?
Each listing links directly to the employer's application page. Apply early — fresh listings get the most recruiter attention in the first two weeks.