Jobs in the United States

25+ jobs

Save this search

Added just now
C
Staff Systems Engineer – Mission Analyst
CesiumAstro
Westminster, CO
- $158,000 to $189,000 USD / year
This position operates as a technical authority within a multidisciplinary engineering environment, providing leadership in mission analysis, constellation design, orbital dynamics, and…
Added just now
C
Senior Spacecraft Systems Engineer – Software
CesiumAstro
Westminster, CO
- $133,000 to $161,000 USD / year
The position is organizationally aligned within the Systems Engineering function while working closely day-to-day with the Software Engineering team to support planning, development,…
Added just now
C
Senior Spacecraft Systems Engineer – Software
CesiumAstro
Westminster, CO
- $133,908 to $160,991 USD / year
The position is organizationally aligned within the Systems Engineering function while working closely day-to-day with the Software Engineering team to support planning, development,…
Added just now
C
Senior Spacecraft Systems Engineer - Payload
CesiumAstro
Westminster, CO
- $133,000 to $161,000 USD / year
Support system architecture development, technical trade studies, and engineering analyses to evaluate design alternatives and optimize system performance.
Added just now
C
Senior Spacecraft Systems Engineer - Optical Comms
CesiumAstro
Westminster, CO
- $133,000 to $161,000 USD / year
Working within a multidisciplinary engineering environment, the Senior Systems Engineer collaborates with software, hardware, mechanical, electrical, manufacturing, integration and test,…
Added just now
C
Senior Spacecraft Systems Engineer
CesiumAstro
Westminster, CO
- $133,000 to $161,000 USD / year
Working within a multidisciplinary engineering environment, the Senior Spacecraft Systems Engineer collaborates with software, hardware, mechanical, electrical, manufacturing, integration…
Added just now
C
Senior Spacecraft Systems Engineer
CesiumAstro
Westminster, CO
- $133,000 to $160,000 USD / year
Working cross-functionally with systems, software, electrical, mechanical, manufacturing, integration and test, quality, and program teams, the Senior Spacecraft Systems Engineer supports…
Added just now
C
Senior Communication Systems Engineer - Spacecraft
CesiumAstro
Westminster, CO
- $133,000 to $161,000 USD / year
The ideal candidate will have a strong background in systems engineering, expertise with both space-based communication payloads and ground terminals, and proven ability to coordinate…
Added 1 min ago
Software Engineer II
Serco USA
VA · MD · DC · Herndon, VA
Enthusiasm for software development, innovation, and a desire to work in a great team atmosphere.
Added 1 min ago
Freeze Drying Technical Application Specialist
ATS Automation
Boston, MA · Irvine, CA · San Francisco, CA · Chicago, IL
…sales tools, and works with Product Management, Marketing, Engineering, Service, and Quality to translate customer needs and market insights into product improvements and new…
Added 1 min ago
Senior Network Engineer – Network Infrastructure & Automation
AFMIC American Family Mutual Insurance Company, S.I.
United States
…scalable network solutions. This role combines hands-on network engineering with opportunities to modernize how we work through automation, Infrastructure as Code, and emerging networking…
Added 1 min ago
SO
Analytics Engineer III
System One
Boston, MA
- $45 to $50 USD / hour
…at the university. Working at the intersection of analytics engineering, data engineering, and artificial intelligence, this role applies software engineering principles to transform raw…
Added 1 min ago
SO
Senior Analytics Engineer
System One
Boston, MA
- $68 to $73.33 USD / hour
The Senior Analytics Engineer leads the design and development of the analytics data architecture, semantic models, and data pipelines that power reporting, analytics, and AI-enabled…
Added 1 min ago
Lead, Project Engineer
L3Harris Technologies
Waco, TX
Project Engineering supporting software development or sustainment
Added 1 min ago
Specialist, Project Engineer
L3Harris Technologies
Waco, TX
Project Engineering supporting software development or sustainment
Added 1 min ago
Manager, Procurement
L3Harris Technologies
Palm Bay, FL
…problems and make recommendations. Interface with materiel, engineering, quality, and program management. Monitor activities against department objectives and submit performance reports to…
Added 1 min ago
Associate, Software Engineering
L3Harris Technologies
Anaheim, CA
Apply computer science, engineering, and mathematical analysis concepts and principles in the development of software for the target application
Added 1 min ago
Lead, Systems Engineer (Deputy CSE) - Space Optical Payloads : Sign-on bonus ($30K max)
L3Harris Technologies
Wilmington, MA
…this position will be proficient in all aspects of the systems engineering process, will have direct and significant experience designing and testing complex systems, and will be…
Added 2 mins ago
DevOps Engineer
CTDI
West Chester, PA
Degree in Computer Science, Software Engineering or related field or equivalent work experience.
Added 2 mins ago
CNC Fabricator-Machinist
Kegman Inc
Cape Canaveral, FL
…Employee-Owned Small Business headquartered in Melbourne FL. We provide engineering and technical support services to U.S. Government clients. We are seeking a CNC Fabricator-Machinist to…
Added 2 mins ago
TC
Senior Director of Enterprise Architecture & Innovation
Taylor Corporation
Eden Prairie, MN
- $180,000 to $230,000 USD / year
Drive adoption of AI-first software engineering practices, CI/CD pipelines, infrastructure-as-code (IaC), automated testing, and release management frameworks.
Added 2 mins ago
Enterprise Systems Workspace Product Manager
AllianceBernstein LP.
Nashville, TN
…Managers and will liaise between the business users and AB’s engineering teams, development groups, vendors and service and support…
Added 2 mins ago
Senior Product Manager
Computer Services, Inc.
Remote, United States
Collaborate with Product Line Leadership, Engineering, Architecture, UX and Design, Payments, Core Banking, Technical Product Owners, Marketing, Sales, Customer Success, Qolo, and Apiture…
Added 2 mins ago
Field Project Manager - Décor Installation
idX Corporation
Remote, United States
This position offers the opportunity to take concepts from development through production, collaborate with cross-functional teams, and help shape the future of our manufacturing…
Added 2 mins ago
Bilingual IT Help Desk Customer Service Representative
Orion Innovation
Orlando, FL
…delivers game-changing business transformation and product development rooted in digital strategy, experience design, and engineering, with a unique combination of agility, scale, and…

Mantis Security Corporation

Infrastructure Engineer/Architect - DDIL SME

Reston, VA, United States

Apply About employer

Applications open in a new tab.

Job details

Apply by: Feb 7, 2027
Posting language: English
Posted: Nov 9, 2026

Original job description

Mantis Security is seeking a Denied, Disrupted, Intermittent, and Limited (DDIL) Subject Matter Expert to guide strategy and architecture for secure mission services operating under constrained connectivity. This role focuses on operating at the intersection of tactical communications, systems engineering, and advanced cybersecurity, this role addresses the unique technical challenges of enforcing Zero Trust principles (continuous verification, least privilege access, explicit risk-based attestation) when continuous reachback to enterprise identity providers, policy engines, and cloud trust brokers is degraded or entirely severed. The engineer will establish resilient Policy Enforcement Points (PEP) and decentralized Policy Decision Points (PDP), architect edge-capable Identity, Credential, and Access Management (ICAM) solutions, and optimize cryptographic overhead across constrained tactical data links.

We are looking for someone who has designed, evaluated, or fielded systems for these conditions and understands the tradeoffs involved. The SME will help Government stakeholders and engineering teams determine which capabilities must operate locally, what information can be cached or replicated, how long that information remains trustworthy, and how systems reconnect safely. Success requires sound technical judgment grounded in mission needs and experience beyond traditional enterprise availability planning.

What You’ll Do

Develop DDIL strategies, architectural approaches, and implementation roadmaps for mission applications and supporting security services.
Work with mission owners to define operational scenarios, connectivity constraints, mission priorities, and acceptable levels of degraded service.
Translate those scenarios into requirements for local autonomy, bandwidth use, latency, outage duration, synchronization, and recovery.
Define which identity, authorization, directory, credential, and data protection capabilities must remain available without enterprise reach back.
Architect local identity and attribute services, including virtual directories and approved caching of security information.
Establish approaches for cached attribute freshness, credential expiration, revocation awareness, authorization policy updates, and operation when authoritative sources cannot be reached.
Evaluate access control tradeoffs, including when services should deny access, permit bounded local operation, or require additional safeguards.
Design synchronization and reconnection approaches that address conflicting updates, stale identity data, audit records, and restoration of enterprise consistency.
Define dependencies among applications, identity providers, policy services, directories, encryption services, and key management infrastructure.
Assess data placement, replication, and protection requirements across connected and disconnected environments, including approved cross-domain interfaces.
Develop architecture diagrams, interface requirements, alternatives analyses, risk assessments, and phased implementation recommendations.
Support agreements and approval documentation governing the caching and use of identity and security attributes.
Guide prototypes and demonstrations that validate architectural assumptions under representative network impairments.
Define measurable acceptance criteria and help teams evaluate mission continuity, security behavior, and recovery during connectivity loss and restoration.
Coordinate with Government stakeholders, mission partners, security personnel, and engineering teams to resolve architectural gaps and guide implementation.

Basic Qualifications

Active Top Secret/Sensitive Compartmented Information (TS/SCI) clearance with ability to obtain a Counterintelligence (CI) Polygraph.
Demonstrated subject matter expertise designing, evaluating, or fielding systems that operate with denied, disrupted, intermittent, or limited connectivity.
Experience developing mission or enterprise architectures that support disconnected operation, local processing, and eventual synchronization with authoritative services.
Ability to translate operational constraints into technical requirements, architectural decisions, and testable performance criteria
Understanding of distributed systems concepts, including consistency, replication, caching, conflict resolution, and failure recovery.
Experience addressing identity, authentication, authorization, or credential dependencies when enterprise services are unavailable.
Understanding of the security implications of stale attributes, delayed revocation information, expired credentials, and unavailable policy or key services.
Experience assessing bandwidth, latency, packet loss, and network availability constraints and their effects on application and service behavior.
Experience developing technical strategies, architecture documentation, alternatives analyses, and implementation roadmaps.
Ability to explain architectural tradeoffs and residual risks to Government decision-makers and provide actionable guidance to engineering teams.
Experience working across mission, cybersecurity, infrastructure, and application development stakeholders.
Experience deploying localized Policy Enforcement Points (PEPs) and lightweight Policy Decision Points (PDPs) on edge compute appliances and dismounted kits.
Experience conducting modeling, simulation, and hardware-in-the-loop (HWIL) testing to replicate tactical link degradation, electronic warfare (EW) effects, and packet-loss profiles.

Desired Qualifications

Operational DDIL experience: Experience supporting deployed, tactical, expeditionary, edge, or other mission environments with constrained reach back.
Identity services: Experience with Identity, Credential, and Access Management (ICAM), virtual directories, identity federation, and local identity and attribute caching.
Authorization design: Experience with attribute-based access control, local policy enforcement, bounded offline access, and synchronization of authorization policies.
Data protection: Familiarity with Trusted Data Format (TDF), data tagging, encryption, and access enforcement when central services are unavailable.
Key and certificate services: Experience addressing Public Key Infrastructure (PKI), certificate validation, credential renewal, and key availability in disconnected environments.
Distributed applications: Experience with store-and-forward messaging, durable queues, retry behavior, duplicate handling, and reconciliation after reconnection.
Cross-domain environments: Experience defining approved identity and data exchanges across security domains and mission partner boundaries.
Cloud and edge platforms: Familiarity with Amazon Web Services (AWS), Kubernetes, Red Hat OpenShift, and deployment patterns spanning enterprise and local infrastructure.
Validation and experimentation: Experience using network impairment testing, fault injection, or operational demonstrations to assess degraded-mode behavior.
Zero Trust: Experience adapting identity, device, application, and data security controls to environments where continuous enterprise connectivity cannot be assumed.
Segmentation: Experience implementing software-defined micro segmentation, overlay networks, and dynamic perimeter controls across non-standard transport channels (e.g., HF/VHF/UHF, SATCOM, mesh radios, 5G tactical bubbles).

Apply About employer

More about this job

Skills

Data protection
Inspect data
Documentation
Conflict resolution
Cybersecurity
Microsoft Access
AWS
Kubernetes
Red Hat OpenShift
Apply information security policies

Report this job