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Added 1 min ago
Senior System Engineer
Belay Technologies
Maryland Area, MD
Belay Technologies is seeking a Senior Systems Engineer to join our intel team. This candidate will Analyzes user’s requirements, concept of operations documents, and high-level system…
Added 1 min ago
Network Engineer I
GAMA-1 Technologies
Seattle, WA
The Network Engineer I will serve as a key technical resource for the Customer’s enterprise network, configuring, maintaining, and supporting the infrastructure that keeps network…
Added 1 min ago
NH
Information Technology Technician
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Buffalo, NY
- From $22.25 USD / hour
Multi-task customer calls, e-mails, IT security user provisioning and data center operations.
Added 3 mins ago
SME Software Engineer Wright-Patterson AFB 1
Serco USA
Wright-Patterson AFB, OH · Andrews AFB, MD · Langley AFB, VA · Aurora Buckley AFB, CO · Cannon AFB, NM · Columbus AFB, MS · Dyess AFB, TX · Edwards AFB, CA · Eglin AFB, FL · Eielson AFB, AK · Ellsworth AFB, SD · Fairchild AFB, WA · Glendale Luke AFB, AZ · Goodfellow AFB, TX · Grand Forks AFB, ND · Hanscom AFB, MA · Hill AFB, UT · Kirtland AFB, NM · Laughlin AFB, TX · Little Rock AFB, AR · Maslmstrom AFB, MT · Maxwell AFB-Gunter Annex, AL · McConnell AFB, KS · Minot AFB, ND · Moody AFB, GA · Mountain Home AFB, ID · Nellis AFB, NV · Offutt AFB, NE · Peterson AFB, CO · Robins AFB, GA · Schriever AFB, CO · Scott AFB, IL · Shaw AFB, SC · Sheppard AFB, TX · Tinker AFB, OK · Travis AFB, CA · Vandenberg AFB, CA · Warren AFB, WY · Whiteman AFB, MO
If you want to work on cutting-edge DoD programs, Serco has a great opportunity for you! As a SME Software Engineer, you will be supporting the Special Programs Division (AFLCMC/WAG) at…
Added 3 mins ago
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Forward Deployed Engineer – MEP Design
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Remote, United States
- $99,750 to $123,375 USD / year
Deploy and maintain department-level tools within AI2IO’s security, data handling, and governance standards, and hand off solutions requiring custom or enterprise-scale development to…
Added 4 mins ago
Software Engineer, Manufacturing Automation & Test
Intuitive
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…surgical robotic systems, instruments, and accessories. This engineer will develop software and algorithms for custom semi-automated electro-mechanical systems that assure products’…
Added 4 mins ago
Staff Product Security Engineer
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This role contributes broadly to the Product Security Team and product development groups by designing, building, and maintaining security solutions and features for current and…
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Senior AI/ML Engineer - Onsite in Minnesota
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- $120,100 to $214,500 USD / year
As a Sr AI/ML Engineer, you will join an innovative technology team dedicated to architecting and scaling advanced artificial intelligence and machine learning solutions across the…
Added 4 mins ago
Data Engineer (Faculty Specialist)
University of Maryland College Park (UMCP)
United States
The CATT Lab is seeking a mid-career or senior Data Engineer to join our Data Platform team. This individual will work to design, develop, and support over 40 relational database instances…
Added 5 mins ago
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Senior Offensive Security Engineer (Red Team)
KeyBank National Association
Brooklyn, OH
- $96,000 to $181,000 USD / year
The Senior Offensive Security Engineer is a key member of the Cyber Defense Cyber Adversary and Exposure Mgmt. team, responsible for simulating advanced persistent threats (APTs) and…
Added 6 mins ago
Software Engineer
Quest Analytics
Remote, United States
…complex challenges in healthcare. We’re searching for a Software Engineer to help us build and scale our…
Added 6 mins ago
Multi-Domain DevSecOps Engineer
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San Diego, CA
Implement security measures and best practices to ensure confidentiality, integrity, and availability of data and applications.
Added 6 mins ago
Principal Systems Test Engineer (Onsite)
BAE Systems
Rome, NY
Job Description We are seeking a highly motivated and organized Systems Test Engineer to join our team in Rome, NY, supporting a long-standing government contract. This role is critical to…
Added 6 mins ago
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Senior Microsoft Security Engineer
Robert Half
Remote, United States
- $53.84 to $62.34 USD / hour
We are looking for a Senior Microsoft Security Engineer to lead and strengthen the organization’s Microsoft-based security environment in Michigan. This contract opportunity is ideal for a…
Added 7 mins ago
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Embedded Software Engineer II, Vehicle Core Software
Rivian and Volkswagen Group Technologies
Irvine, CA
- $107,000 to $141,700 USD / year
Rivian and Volkswagen Group Technologies” may collect, use and disclose your personal information or personal data (within the meaning of the applicable data protection laws) when you apply…
Added 7 mins ago
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Senior Platform Integration Engineer
Rivian and Volkswagen Group Technologies
Palo Alto, CA · Irvine, CA
- $146,900 to $201,950 USD / year
The road to the future is uncharted. By combining our expertise across connectivity, AI, security and more, we’ll map a new way forward. Working together, we’ll create a future that’s more…
Added 7 mins ago
Application Security Engineer
Rubrik Job Board
Palo Alto, CA
The Application Security team believes software should be secure because of how it was built, not because someone checked it afterwards. We set the security standards that everything Rubrik…
Added 8 mins ago
Senior Manager, Software Engineer
ICF Resources, LLC
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ICF is seeking a Senior Manager, Software Engineer to lead the engineering team responsible for Sightline ADAPT, a client-facing analytics and decision-support platform serving the utility…
Added 8 mins ago
Lead Software Engineer
ICF Resources, LLC
Reston, VA
ICF is seeking a Lead Software Engineer to lead the hands-on development and continued evolution of the Demand Response Optimization Program (DROP), a client-facing software product that…
Added 8 mins ago
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Senior Cloud Engineer - Governance
Delinea
Remote, United States
- $145,000 to $160,000 USD / year
· Implementation of Zero Trust security strategies and proven ability to protect identities, endpoints, data, applications, and infrastructure
Added 8 mins ago
Information Security Analyst (App Security)
BlueScope Steel North America Corporation
Remote, United States
Use scripting or automation to improve repeatable security tasks, data collection, reporting, and workflow efficiency.
Added 9 mins ago
Systems Software Engineer – Database Engineering & Core Services
Mantis Security Corporation
Reston, VA
Collaborate with cybersecurity, infrastructure, data, and mission stakeholders to integrate security controls, cryptographic protections, logging, monitoring, and auditability throughout…
Added 9 mins ago
Systems Software Engineer – Database Engineering & Core Services
Mantis Security Corporation
Charleston, SC
Collaborate with cybersecurity, infrastructure, data, and mission stakeholders to integrate security controls, cryptographic protections, logging, monitoring, and auditability throughout…
Added 9 mins ago
Infrastructure Engineer/Architect - DDIL SME
Mantis Security Corporation
Reston, VA
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…
Added 9 mins ago
Infrastructure Engineer/Architect - DDIL SME
Mantis Security Corporation
Charleston, SC
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…

Mantis Security Corporation

Systems Software Engineer – Database Engineering & Core Services

Charleston, SC, United States

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Job details

Apply by: Feb 7, 2027
Experience: Typical experience: 10 years of professional software engineering experience.
Posting language: English
Posted: Nov 9, 2026

Original job description

Mantis Security is seeking software engineers with systems programming expertise and a strong background in database engineering. This role focuses on understanding how database engines and core services work internally, reading source code, examining network communications, and modifying software to support mission requirements. Candidates should be able to move beyond queries, schemas, and application interfaces to understand how a database processes requests, exchanges data, and interacts with other components. The work involves tracing behavior through unfamiliar codebases and protocols, identifying where changes belong, and understanding their effects across an integrated technology stack. This role is full time on-site.

What You’ll Do

Develop, maintain, test, and deploy secure, scalable applications and services using C, C++, Rust, Go, Java, Python, or Node.js.
Apply systems programming principles, particularly in C, C++, and Rust, to develop performant and reliable software components.
Develop software supporting process creation, monitoring, control, and inter-process communication.
Build concurrent and multithreaded applications using appropriate synchronization, signal handling, memory management, and resource-control techniques.
Design, implement, and troubleshoot networked applications using sockets, client-server architectures, and applicable network protocols.
Analyze database engine source code, communication protocols, request and response formats, serialization, and packet layouts to support development and integration.
Trace requests through database engine code to identify processing logic, integration points, and the effects of proposed modifications.
Develop relational data-storage solutions using Structured Query Language (SQL), including data modeling, query development, performance tuning, and access control.
Develop and integrate graph database solutions supporting relationship-based data modeling, analysis, and retrieval.
Work across relational databases, graph databases, object storage, and search/indexing engines, including technologies such as PostgreSQL, Redis, RxDB, Neo4j, Amazon S3, and Elasticsearch.
Refactor and modernize existing services, including transitioning functionality from Python to other implementation languages where appropriate.
Develop and maintain Infrastructure as Code (IaC) to provision, configure, and manage infrastructure through repeatable, version-controlled workflows.
Deploy, monitor, and troubleshoot cloud-hosted software, including dependencies on compute, storage, networking, identity, and security services.
Integrate applications with identity providers to support authentication, authorization, federation, single sign-on, and identity-aware access control.
Implement OpenID Connect (OIDC) integrations, including token validation, claims processing, client registration, redirect flows, session management, and secure API access.
Incorporate Zero Trust Architecture principles into software designs, including interactions among policy decision, administration, information, and enforcement components.
Collaborate with cybersecurity, infrastructure, data, and mission stakeholders to integrate security controls, cryptographic protections, logging, monitoring, and auditability throughout the software development lifecycle.
Produce and maintain software designs, interface specifications, deployment procedures, configuration baselines, security implementation details, and operational support materials.

Basic Qualifications

Bachelor’s degree in a quantitative field such as engineering or mathematics. Relevant fields include Electrical Engineering, Computer Engineering, Computer Science, Information Technology, and Information Systems.
Typical experience: 10 years of professional software engineering experience.
Active Top Secret/Sensitive Compartmented Information (TS/SCI) clearance with the ability to obtain a Counterintelligence (CI) Polygraph.
Prior experience supporting the Intelligence Community.
Experience applying programming concepts in a professional or academic setting.
Experience applying modern software development methodologies, such as Agile, DevOps, or DevSecOps, in a professional or academic setting.
Hands-on systems programming experience in one or more of C, C++, or Rust, with the ability to work across additional languages and runtimes as needed.
Experience with operating-system interfaces, process management, inter-process communication, concurrency, and multithreaded application development.
Understanding of synchronization primitives, signal handling, memory management, and resource management.
Experience developing or troubleshooting socket-based applications and client-server communications.
Experience with database engine internals, network protocol development, or comparable source-code and low-level systems analysis.
Ability to navigate unfamiliar source code, trace execution and data flows, and assess how changes affect performance, interoperability, concurrency, and security.
Experience with relational database design, SQL, query optimization, and database access controls.
Understanding of graph database concepts and their application to relationship-based data.
Experience developing infrastructure automation and deploying or supporting software in cloud environments.
Experience integrating applications with identity services using OIDC and applying authentication and authorization controls.
Understanding of Zero Trust Architecture concepts, including Policy Decision Points (PDPs), Policy Administration Points (PAPs), Policy Information Points (PIPs), and Policy Enforcement Points (PEPs).
Strong troubleshooting, technical documentation, and collaboration skills.
Agile Developer certification or Certified Scrum Developer certification.
CompTIA Security+ or higher-level cybersecurity certification.

We are looking for experienced engineers who want to understand how systems work, can reason through complex code and communications, and are comfortable making changes below the application layer.

Candidates who meet the basic qualifications do not need experience with every technology listed under desired qualifications. Depth in systems programming and database engineering, paired with the ability to learn adjacent technologies, is what matters most.

Desired Qualifications

Advanced education: Master’s degree in a quantitative field such as engineering or mathematics. Relevant fields include Electrical Engineering, Computer Engineering, Computer Science, Information Technology, and Information Systems.
Database engineering: Experience with PostgreSQL and Neo4j, including database design, administration, performance optimization, and application integration.
Protocol engineering: Experience interpreting packet captures, working with binary message formats, developing protocol parsers, or modifying database clients, drivers, extensions, or engine code.
Infrastructure automation: Experience using Terraform and Ansible for cloud infrastructure provisioning, configuration management, and application deployment.
Cloud and platform engineering: Experience deploying and maintaining applications and infrastructure in Amazon Web Services (AWS), including AWS GovCloud, Kubernetes, Red Hat OpenShift, and environments subject to Department of Defense Impact Level 5 requirements.
Identity platforms: Experience with PingFederate, Keycloak, Radiant Logic, SailPoint, Secret Server, or Okta; experience migrating identity providers and adapting application code is especially useful.
Public Key Infrastructure (PKI): Experience implementing certificate lifecycle management, key management, certificate validation, and cryptographic service integrations.
Cryptographic interfaces: Experience using PKCS #11 to integrate applications with cryptographic tokens, Hardware Security Modules (HSMs), or other secure key-storage mechanisms.
Modern cryptography: Experience implementing, evaluating, or integrating cryptographic algorithms, including Module-Lattice-Based Key-Encapsulation Mechanism (ML-KEM).
Data protection and service integration: Experience with Trusted Data Format (TDF), Go-based security services, enterprise service integration, or serialization technologies such as Protocol Buffers.

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More about this job

Skills

C
C++
Rust
Go
Oracle Java
Python
Node.js
Communication skills
Troubleshoot
Data storage
Use query languages
SQL
Data modelling
PostgreSQL
Redis
Neo4j
Elasticsearch
Infrastructure as code
Monitor infrastructure
Claims processing
Cybersecurity
Software development
Electrical engineering
Computer engineering
Computer science
Computer technology
Agile
DevOps
Troubleshooting
Documentation
Collaboration
Scrum
Security+
IBM Terraform
Ansible
AWS
Kubernetes
Red Hat OpenShift
ML

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