{"schemaVersion":"jobsearcher.job.v1","id":"e892debf41a33ff52f298fef","url":"https://jobsearcher.com/jobs/e892debf41a33ff52f298fef","canonicalUrl":"https://jobsearcher.com/jobs/e892debf41a33ff52f298fef","title":"Systems Software Engineer – Database Engineering & Core Services","description":"Description:\n\nMantis 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.\n\nCandidates 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.\n\nThis role is full time on-site.\n\nWhat You’ll Do\n\nDevelop, maintain, test, and deploy secure, scalable applications and services using C, C++, Rust, Go, Java, Python, or Node.js.\nApply systems programming principles, particularly in C, C++, and Rust, to develop performant and reliable software components.\nDevelop software supporting process creation, monitoring, control, and inter-process communication.\nBuild concurrent and multithreaded applications using appropriate synchronization, signal handling, memory management, and resource-control techniques.\nDesign, implement, and troubleshoot networked applications using sockets, client-server architectures, and applicable network protocols.\nAnalyze database engine source code, communication protocols, request and response formats, serialization, and packet layouts to support development and integration.\nTrace requests through database engine code to identify processing logic, integration points, and the effects of proposed modifications.\nDevelop relational data-storage solutions using Structured Query Language (SQL), including data modeling, query development, performance tuning, and access control.\nDevelop and integrate graph database solutions supporting relationship-based data modeling, analysis, and retrieval.\nWork across relational databases, graph databases, object storage, and search/indexing engines, including technologies such as PostgreSQL, Redis, RxDB, Neo4j, Amazon S3, and Elasticsearch.\nRefactor and modernize existing services, including transitioning functionality from Python to other implementation languages where appropriate.\nDevelop and maintain Infrastructure as Code (IaC) to provision, configure, and manage infrastructure through repeatable, version-controlled workflows.\nDeploy, monitor, and troubleshoot cloud-hosted software, including dependencies on compute, storage, networking, identity, and security services.\nIntegrate applications with identity providers to support authentication, authorization, federation, single sign-on, and identity-aware access control.\nImplement OpenID Connect (OIDC) integrations, including token validation, claims processing, client registration, redirect flows, session management, and secure API access.\nIncorporate Zero Trust Architecture principles into software designs, including interactions among policy decision, administration, information, and enforcement components.\nCollaborate with cybersecurity, infrastructure, data, and mission stakeholders to integrate security controls, cryptographic protections, logging, monitoring, and auditability throughout the software development lifecycle.\nProduce and maintain software designs, interface specifications, deployment procedures, configuration baselines, security implementation details, and operational support materials.\nRequirements:\n\nBasic Qualifications\n\nBachelor’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.\nTypical experience: 10 years of professional software engineering experience.\nActive Top Secret/Sensitive Compartmented Information (TS/SCI) clearance with the ability to obtain a Counterintelligence (CI) Polygraph.\nPrior experience supporting the Intelligence Community.\nExperience applying programming concepts in a professional or academic setting.\nExperience applying modern software development methodologies, such as Agile, DevOps, or DevSecOps, in a professional or academic setting.\nHands-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.\nExperience with operating-system interfaces, process management, inter-process communication, concurrency, and multithreaded application development.\nUnderstanding of synchronization primitives, signal handling, memory management, and resource management.\nExperience developing or troubleshooting socket-based applications and client-server communications.\nExperience with database engine internals, network protocol development, or comparable source-code and low-level systems analysis.\nAbility to navigate unfamiliar source code, trace execution and data flows, and assess how changes affect performance, interoperability, concurrency, and security.\nExperience with relational database design, SQL, query optimization, and database access controls.\nUnderstanding of graph database concepts and their application to relationship-based data.\nExperience developing infrastructure automation and deploying or supporting software in cloud environments.\nExperience integrating applications with identity services using OIDC and applying authentication and authorization controls.\nUnderstanding of Zero Trust Architecture concepts, including Policy Decision Points (PDPs), Policy Administration Points (PAPs), Policy Information Points (PIPs), and Policy Enforcement Points (PEPs).\nStrong troubleshooting, technical documentation, and collaboration skills.\nAgile Developer certification or Certified Scrum Developer certification.\nCompTIA Security+ or higher-level cybersecurity certification.\n\nWe 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.\n\nCandidates 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.\n\nDesired Qualifications\n\nAdvanced 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.\nDatabase engineering: Experience with PostgreSQL and Neo4j, including database design, administration, performance optimization, and application integration.\nProtocol engineering: Experience interpreting packet captures, working with binary message formats, developing protocol parsers, or modifying database clients, drivers, extensions, or engine code.\nInfrastructure automation: Experience using Terraform and Ansible for cloud infrastructure provisioning, configuration management, and application deployment.\nCloud 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.\nIdentity platforms: Experience with PingFederate, Keycloak, Radiant Logic, SailPoint, Secret Server, or Okta; experience migrating identity providers and adapting application code is especially useful.\nPublic Key Infrastructure (PKI): Experience implementing certificate lifecycle management, key management, certificate validation, and cryptographic service integrations.\nCryptographic interfaces: Experience using PKCS #11 to integrate applications with cryptographic tokens, Hardware Security Modules (HSMs), or other secure key-storage mechanisms.\nModern cryptography: Experience implementing, evaluating, or integrating cryptographic algorithms, including Module-Lattice-Based Key-Encapsulation Mechanism (ML-KEM).\nData protection and service integration: Experience with Trusted Data Format (TDF), Go-based security services, enterprise service integration, or serialization technologies such as Protocol Buffers.","company":"Mantis Security","rawCompany":"mantis security","city":"Charleston","state":"SC","isRemote":false,"isActive":true,"createdAt":"2026-11-10T08:37:03.431Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"},{"code":"15-1211.00","title":"Computer Systems Analysts","slug":"computer-systems-analysts"}],"industries":[{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"},{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Systems Software Engineer – Database Engineering & Core Services","description":"Description:\n\nMantis 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.\n\nCandidates 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.\n\nThis role is full time on-site.\n\nWhat You’ll Do\n\nDevelop, maintain, test, and deploy secure, scalable applications and services using C, C++, Rust, Go, Java, Python, or Node.js.\nApply systems programming principles, particularly in C, C++, and Rust, to develop performant and reliable software components.\nDevelop software supporting process creation, monitoring, control, and inter-process communication.\nBuild concurrent and multithreaded applications using appropriate synchronization, signal handling, memory management, and resource-control techniques.\nDesign, implement, and troubleshoot networked applications using sockets, client-server architectures, and applicable network protocols.\nAnalyze database engine source code, communication protocols, request and response formats, serialization, and packet layouts to support development and integration.\nTrace requests through database engine code to identify processing logic, integration points, and the effects of proposed modifications.\nDevelop relational data-storage solutions using Structured Query Language (SQL), including data modeling, query development, performance tuning, and access control.\nDevelop and integrate graph database solutions supporting relationship-based data modeling, analysis, and retrieval.\nWork across relational databases, graph databases, object storage, and search/indexing engines, including technologies such as PostgreSQL, Redis, RxDB, Neo4j, Amazon S3, and Elasticsearch.\nRefactor and modernize existing services, including transitioning functionality from Python to other implementation languages where appropriate.\nDevelop and maintain Infrastructure as Code (IaC) to provision, configure, and manage infrastructure through repeatable, version-controlled workflows.\nDeploy, monitor, and troubleshoot cloud-hosted software, including dependencies on compute, storage, networking, identity, and security services.\nIntegrate applications with identity providers to support authentication, authorization, federation, single sign-on, and identity-aware access control.\nImplement OpenID Connect (OIDC) integrations, including token validation, claims processing, client registration, redirect flows, session management, and secure API access.\nIncorporate Zero Trust Architecture principles into software designs, including interactions among policy decision, administration, information, and enforcement components.\nCollaborate with cybersecurity, infrastructure, data, and mission stakeholders to integrate security controls, cryptographic protections, logging, monitoring, and auditability throughout the software development lifecycle.\nProduce and maintain software designs, interface specifications, deployment procedures, configuration baselines, security implementation details, and operational support materials.\nRequirements:\n\nBasic Qualifications\n\nBachelor’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.\nTypical experience: 10 years of professional software engineering experience.\nActive Top Secret/Sensitive Compartmented Information (TS/SCI) clearance with the ability to obtain a Counterintelligence (CI) Polygraph.\nPrior experience supporting the Intelligence Community.\nExperience applying programming concepts in a professional or academic setting.\nExperience applying modern software development methodologies, such as Agile, DevOps, or DevSecOps, in a professional or academic setting.\nHands-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.\nExperience with operating-system interfaces, process management, inter-process communication, concurrency, and multithreaded application development.\nUnderstanding of synchronization primitives, signal handling, memory management, and resource management.\nExperience developing or troubleshooting socket-based applications and client-server communications.\nExperience with database engine internals, network protocol development, or comparable source-code and low-level systems analysis.\nAbility to navigate unfamiliar source code, trace execution and data flows, and assess how changes affect performance, interoperability, concurrency, and security.\nExperience with relational database design, SQL, query optimization, and database access controls.\nUnderstanding of graph database concepts and their application to relationship-based data.\nExperience developing infrastructure automation and deploying or supporting software in cloud environments.\nExperience integrating applications with identity services using OIDC and applying authentication and authorization controls.\nUnderstanding of Zero Trust Architecture concepts, including Policy Decision Points (PDPs), Policy Administration Points (PAPs), Policy Information Points (PIPs), and Policy Enforcement Points (PEPs).\nStrong troubleshooting, technical documentation, and collaboration skills.\nAgile Developer certification or Certified Scrum Developer certification.\nCompTIA Security+ or higher-level cybersecurity certification.\n\nWe 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.\n\nCandidates 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.\n\nDesired Qualifications\n\nAdvanced 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.\nDatabase engineering: Experience with PostgreSQL and Neo4j, including database design, administration, performance optimization, and application integration.\nProtocol engineering: Experience interpreting packet captures, working with binary message formats, developing protocol parsers, or modifying database clients, drivers, extensions, or engine code.\nInfrastructure automation: Experience using Terraform and Ansible for cloud infrastructure provisioning, configuration management, and application deployment.\nCloud 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.\nIdentity platforms: Experience with PingFederate, Keycloak, Radiant Logic, SailPoint, Secret Server, or Okta; experience migrating identity providers and adapting application code is especially useful.\nPublic Key Infrastructure (PKI): Experience implementing certificate lifecycle management, key management, certificate validation, and cryptographic service integrations.\nCryptographic interfaces: Experience using PKCS #11 to integrate applications with cryptographic tokens, Hardware Security Modules (HSMs), or other secure key-storage mechanisms.\nModern cryptography: Experience implementing, evaluating, or integrating cryptographic algorithms, including Module-Lattice-Based Key-Encapsulation Mechanism (ML-KEM).\nData protection and service integration: Experience with Trusted Data Format (TDF), Go-based security services, enterprise service integration, or serialization technologies such as Protocol Buffers.","datePosted":"2026-11-10T08:37:03.431Z","dateModified":"2026-11-10T08:37:03.431Z","hiringOrganization":{"@type":"Organization","name":"Mantis Security","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Charleston","addressRegion":"SC","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"e892debf41a33ff52f298fef"},"url":"https://jobsearcher.com/jobs/e892debf41a33ff52f298fef"}}