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Full Stack Developer
System One
Cleveland, OH
We are seeking a Full Stack Developer with strong expertise in Java, Spring Boot, Angular, and Microservices to support the design, development, and maintenance of enterprise-scale…
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Full Stack Developer
System One
Pittsburgh, PA
We are seeking a Full Stack Developer with strong expertise in Java, Spring Boot, Angular, and Microservices to support the design, development, and maintenance of enterprise-scale…
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Cloud DevOps Engineer
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Washington, DC
- $71.5 USD / hour
User accounts, security schemes, attachments, custom workflows, automation scripts, Marketplace applications, and custom API integrations.
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Fundraising Vice President, Development
Alzheimer's Association
Indianapolis, IN
Proficiency with applications for Microsoft Office (Excel, Word and PowerPoint), Google Suite (Docs, Sheets, Slides), and teleconferencing software, such as Zoom
Added 1 min ago
TT
Founding Product Engineer
True Talent Solutions Partners
San Francisco, CA
- $165,000 to $210,000 USD / year
…directly with customers to turn their research needs into reliable…
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Client Services Counselor - II
Placer County
CA
Placer County’s Children’s System of Care office in Tahoe is currently accepting applications for Client Services Counselor I and II. These positions provide a broad range of direct…
Added 1 min ago
Client Services Counselor - I
Placer County
CA
Placer County’s Children’s System of Care office in Tahoe is currently accepting applications for Client Services Counselor I and II. These positions provide a broad range of direct…
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Staff AI/ML Software Engineer – Navigation R&D
DePuy Synthes Products Inc. Legal Entity
Boston, MA · Warsaw, IN
We are searching for the best talent for a Staff AI/ML Software Engineer – Navigation R&D. This is a hybrid role to be based out of Boston, MA or Warsaw, IN.
Added 1 min ago
Professional, Finance Datahub
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New Brunswick, NJ · West Chester, PA · Palm Beach Gardens, FL · Warsaw, IN · Raritan, NJ · Raynham, MA
…transformation of enterprise finance data platforms within the Finance Applications IT…
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Insurance Strategist
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Remote, United States
Demonstrated proficiency in basic computer applications such as Microsoft Office software products
Added 1 min ago
16339 - Software Solutions Architect
Smith Johnson Tech
Lansing, MI
· Lead development of software applications, server components and services using various development tools and State of Michigan approved/supported technologies.
Added 2 mins ago
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Customer Service Coordinator (Multiple Shifts- Days or Nights)
Off Duty Management
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Software Engineer
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Senior Software Engineer (5829) (Boulder, CO) (Secret)
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Mantis Security Corporation

Infrastructure Engineer/Architect - DDIL SME

Charleston, SC, United States

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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).

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Skills

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

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