{"id":4288685,"url":"https://alion.io/job/pemcco-systems-software-engineer","title":"Systems Software Engineer","company":{"id":4422833,"name":"PEMCCO","domain":"pemcco.com","url":"https://alion.io/company/pemcco","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"BambooHR","truth_index":{"grade":"C","score":59,"open_postings":19,"ghost_share":0.684,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-11-12T10:38:37Z"}},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Washington, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":68,"max":115,"currency":"USD","period":"hour","gross":null,"usd_annual":230000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"Amazon S3","optional":false},{"name":"C++","optional":false},{"name":"ElasticSearch","optional":false},{"name":"Go","optional":false},{"name":"Java","optional":false},{"name":"Neo4j","optional":false},{"name":"Node JS","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false},{"name":"Redis","optional":false},{"name":"Rust","optional":false},{"name":"Scrum","optional":false},{"name":"SQL","optional":false},{"name":"Zero Trust","optional":false},{"name":"Ansible","optional":true},{"name":"AWS","optional":true},{"name":"JavaScript","optional":true},{"name":"Kubernetes","optional":true},{"name":"OpenShift","optional":true},{"name":"PKI","optional":true},{"name":"Terraform","optional":true}],"status":"live","first_seen_at":"2026-11-13T22:39:26Z","employer_posted_date":"2026-11-13","last_verified_at":"2026-11-13T22:39:26Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"Pay:$68.43 - $115.91 hourly, depending on experience\nBenefits:Medical, Dental, Vision, Paid Time Off, Paid Holidays, Employee Assistance Program, and other company-sponsored benefits\nSecurity Clearance:Active TS/SCI clearance required; must be eligible for and able to obtain a Counterintelligence (CI) Polygraph\nCertifications:Agile Developer or Certified Scrum Developer certification and CompTIA Security+ (or higher)\nAre you a software engineer who wants to understand how systems work beneath the application layer? Do you enjoy analyzing source code, tracing network communications, understanding database internals, and solving complex engineering challenges?\nPEMCCO is seeking a Systems Software Engineer with expertise in systems programming and database engineering to support mission-focused government programs. This role goes beyond traditional application development and database administration. You will work directly with database engines, communication protocols, operating system interfaces, cloud platforms, and identity services to develop, integrate, and enhance secure software solutions.\nThis position is ideal for engineers with experience in systems programming, database engineering, software integration, cloud technologies, and secure application development who enjoy understanding how complex systems behave and interact across an integrated technology stack.\nAbout PEMCCO\nPEMCCO delivers engineering, technology, cybersecurity, and mission support services to federal government customers. Our teams develop and sustain secure, innovative solutions that support critical government operations and mission success.\nJob Overview\nPEMCCO is seeking an experienced Systems Software Engineer to support the development, modernization, and integration of secure software systems.\nIn this role, you will analyze source code, trace data flows and network communications, understand database engine processing, and implement software changes that support evolving mission requirements. You will work across relational databases, graph databases, identity platforms, cloud environments, and supporting infrastructure while collaborating with cybersecurity, infrastructure, and mission stakeholders.\nThis is a highly technical position for engineers who can reason through complex software behavior, troubleshoot issues across multiple layers of a technology stack, and confidently work within unfamiliar codebases and protocols.\nWhat You'll Do\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 high-performance, reliable software components.\nDevelop software supporting process creation, monitoring, control, and inter-process communication.\nBuild concurrent and multithreaded applications utilizing 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 methods, and packet layouts.\nTrace requests through database engine code to identify processing logic, integration points, and operational impacts.\nDevelop relational data-storage solutions using 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 technologies including 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) solutions to provision, configure, and manage environments 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 and implementations.\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.\nWhat You Bring\nRequired Qualifications\nBachelor's degree in Computer Science, Computer Engineering, Electrical Engineering, Information Technology, Information Systems, Mathematics, or a related field.\n10+ years of software engineering experience.\nActive TS/SCI clearance with the ability to obtain and maintain a CI Polygraph.\nExperience supporting Intelligence Community or other federal government programs.\nStrong software development experience using one or more modern programming languages such as C, C++, Rust, Go, Java, or Python.\nExperience with systems programming concepts, including process management, concurrency, multithreading, inter-process communication, and memory management.\nExperience developing or troubleshooting networked applications and client-server systems.\nExperience with relational databases, SQL, and database design concepts.\nAbility to analyze and modify complex codebases and troubleshoot problems across multiple layers of a system.\nExperience with Agile software development methodologies.\nStrong communication, collaboration, and technical documentation skills.\nSecurity+ (or higher) certification.\nPreferred Experience\nExperience with database internals or database-engine development.\nExperience with PostgreSQL, Neo4j, Redis, Elasticsearch, or similar technologies.\nExperience with cloud technologies such as AWS or AWS GovCloud.\nExperience with Kubernetes, OpenShift, Terraform, or Ansible.\nExperience implementing OIDC, SSO, identity management, or Zero Trust architectures.\nExperience supporting classified or mission-critical environments.\nExperience with protocol analysis, packet captures, serialization technologies, or low-level communications.\nExperience with cryptographic services, PKI, HSMs, or PKCS #11 integrations.\nAdvanced degree in a related technical field.\nWhy Join PEMCCO?\nSupport meaningful national security and government missions.\nSolve challenging engineering problems involving systems programming, databases, cloud infrastructure, cybersecurity, and software development.\nWork with cutting-edge technologies across software engineering, identity management, cloud computing, data platforms, and cybersecurity.\nCollaborate with highly skilled engineers, architects, cybersecurity professionals, and mission stakeholders.\nExpand your expertise across multiple technical disciplines while contributing to critical programs.\nWork Environment\nFull-time onsite position supporting the development and modernization of complex software systems.\nCollaborative team environment focused on software engineering, database technologies, cloud platforms, and infrastructure automation.\nOpportunities to work across multiple technology domains, including systems programming, networking, data platforms, identity services, and cybersecurity.\nFast-paced environment with challenging technical problems and opportunities for continuous learning and professional growth.\nBenefits\nMedical Insurance\nDental Insurance\nVision Insurance\nPaid Time Off\nPaid Holidays\nAdditional company-sponsored benefits\nApply Today\nIf you are an experienced engineer who enjoys understanding how systems work internally, solving complex technical challenges, and building secure, mission-focused solutions, we encourage you to apply.\nJoin PEMCCO and help develop the next generation of secure software, database technologies, and mission-critical services supporting government operations.\nEqual Opportunity Employer\nPEMCCO, Inc. is an equal opportunity employer. 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