Vantor

About the Company

Headquartered in Belfast, Northern Ireland, Vantor is a Managed Security Services Provider (MSSP) that specializes in providing outsourced, managed cybersecurity services. Our services are designed to help organizations across the UK and Ireland protect their digital assets and infrastructure. Our Mission Today's digital world is full of opportunity and threats, we want to see our clients prosper by helping them protect their staff, data and operations from cyber threats. Vantor's mission is to work with business leaders and IT departments to strengthen their cybersecurity posture by using industry best practices and implementing advanced cybersecurity services in a proportionate, practical, and cost-effective way.

Listed Jobs

Company Name

Vantor

Job Title

Mission Planning - Systems Engineer

Job Description

Job title: Mission Planning – Systems Engineer Role Summary: Design, develop, and maintain system-level artifacts for the mission planning ground system, ensuring alignment with stakeholder requirements, participating in Agile SDLC, and producing current as‑built documentation. Expectations: U.S. citizen or permanent resident, eligible to obtain a U.S. Government Secret clearance, minimum of 2 years relevant experience, Bachelor’s degree in Aerospace, Computer Science, Physical Science, Mathematics or related field, strong teamwork, self‑motivation, and excellent written and oral communication skills. Key Responsibilities: • Participate in Agile Software Development Life Cycle activities for mission planning ground system software. <br>• Collaborate with feature owners, program managers, product owners, developers, testers, and operations to define features and craft optimal system designs. <br>• Create system‑level design artifacts and manage requirements in context. <br>• Lead design sessions with component SMEs across the organization, implementing agreed designs. <br>• Develop and maintain as‑built models and design documents for software components. <br>• Work with internal clients from back‑end processing to user interfaces, focusing on mission planning functions. Required Skills: • Systems engineering and system design expertise. <br>• Experience with Agile SDLC and requirement management. <br>• Proficiency in documentation and as‑built modeling. <br>• Strong collaboration, listening, and communication skills. <br>• Self‑motivation and attention to detail. Required Education & Certifications: • Bachelor’s degree in Aerospace Engineering, Computer Science, Physical Science, Mathematics or related discipline. <br>• U.S. citizen, permanent resident, asylee, or refugee status. <br>• Ability to obtain a U.S. Government Secret security clearance (current or eligibility).

Longmont, United states

On site

Junior

08-01-2026

Company Name

Vantor

Job Title

Geospatial Programmer

Job Description

**Job Title** Geospatial Programmer **Role Summary** Develop and maintain Python‑based geospatial analysis tools to support national security analytics. Provide automation, data modeling, and performance optimization for large spatial datasets, and mentor analysts in custom code development. **Expectations** - Full‑time, on‑site work (Monday‑Friday) with a U.S. government‑clearance client. - Maintain TS/SCI clearance with polygraph. - Deliver reliable, scalable code and documentation under tight operational timelines. **Key Responsibilities** - Write custom Python scripts, modules, libraries, and dynamic DLLs for geospatial analysis. - Automate geoprocessing workflows for large datasets; provide ad‑hoc scripting support. - Teach analysts to write and debug custom code. - Optimize data management: deduplication, reduction, and scaling from regional to global scope. - Leverage distributed computing resources to handle massive geospatial data. **Required Skills** - 5+ years of professional software development, primarily in Python. - Expertise in geospatial analysis, image processing, and spatial reasoning. - Experience with NoSQL (Elasticsearch) and relational (PostgreSQL) databases. - Proficiency in data modeling, workflow automation, and performance tuning. - Strong debugging, system integration, and customer support capabilities. **Required Education & Certifications** - Bachelor’s degree in Computer Science, Geography, or related technical field (equivalent experience acceptable). - TS/SCI security clearance with active polygraph. ---

Mc lean, United states

On site

Mid level

11-01-2026

Company Name

Vantor

Job Title

Full Stack Developer

Job Description

Job title: Full Stack Developer Role Summary: Design, develop, and maintain a web‑based application for data ingest, archival, retrieval, display, and dissemination. Collaborate with cross‑functional teams to deliver functional features that meet client requirements, while ensuring compliance with security and quality standards. Expectations: - U.S. Person (citizen, permanent resident, asylee, or refugee) with an active TS/SCI clearance and required polygraph. - Willingness to work onsite full‑time. - Ability to join daily Scrum meetings, run tests, and demonstrate deliverables at sprint end. Key Responsibilities: - Translate customer requests into documented requirements in coordination with product management. - Implement application features using Shell scripting, Python (FastAPI), Java, JavaScript, Vue.js, and Tailwind CSS. - Develop front‑end interfaces and back‑end database processing, ensuring architectural integrity across the stack. - Design relational databases, manage SQL workflows, and maintain data integrity. - Collaborate with UI/UX experts and power users to create intuitive user experiences. - Conduct unit and integration testing of new features; ensure compliance with acceptance criteria. - Participate in daily Scrum, identify blockers, and provide status updates. - Deliver completed functionality to product manager/team at sprint closure. Required Skills: - Strong experience with JavaScript (Hono.js) and Python (FastAPI). - Proficiency in TypeScript/JavaScript (Vue.js) and Tailwind CSS. - Knowledge of DevOps tools (CDKTF/terraform). - Relational database design and SQL query development. - Git source‑control fundamentals. Preferred Skills (not mandatory): - Building chat interfaces and integrating LLM APIs. - Docker/Podman container usage. - AWS cloud environment experience. Required Education & Certifications: - Bachelor’s degree in Computer Science or related field. - Minimum 5 years of full‑stack development experience. - Active TS/SCI clearance with required polygraph; U.S. citizenship required.

Mc lean, United states

On site

Mid level

11-01-2026

Company Name

Vantor

Job Title

Linux (DevSecOps) System Administrator (TS/SCI)

Job Description

**Job Title:** Linux (DevSecOps) System Administrator (TS/SCI) **Role Summary:** Provide Linux system administration and DevSecOps support for a private cloud and AI/ML infrastructure. Work directly with mission partners, AI/ML researchers, software engineers, and cybersecurity teams to ensure platform reliability, security compliance, and operational readiness. **Expectations:** - U.S. Person with active TS/SCI clearance and ability to obtain CI polygraph. - Full‑time, on‑site in Herndon, VA. - Self‑starter who can handle Tier 1‑2 support, ad‑hoc requests, and shifting priorities. **Key Responsibilities:** - Monitor and resolve hardware/software outages across compute clusters. - Maintain and upgrade infrastructure supporting data science and R&D activities. - Troubleshoot tenant/user issues and fulfill service requests. - Implement cybersecurity remediation in coordination with security teams. - Deploy, configure, and integrate applications using Docker/Podman, GitLab, and related CI/CD pipelines. - Add and configure new hardware in multi‑cluster environments. - Author and update operational procedures and documentation. - Ensure platform compliance with customer policies, DISA STIGs, and federal cybersecurity standards. **Required Skills:** - Minimum 2 years Linux system administration (RHEL/CentOS or similar). - Hands‑on experience with Docker/Podman, Packer, GitLab, GitLab Runners. - Tier 1‑2 support and complex troubleshooting. - Software upgrade, patching, system monitoring, and R&D support. - Basic scripting (Bash) and automation concepts. **Required Education & Certifications:** - Bachelor’s degree in Computer Science, Information Systems, Software Engineering, or related field **or** 4 years equivalent experience. - Active TS/SCI clearance with CI polygraph eligibility. **Preferred (Not Required) Skills & Experience:** - 3+ years Linux administration with Ansible, Terraform, and Kubernetes. - Python full‑stack development; familiarity with Hadoop, HDFS, ElasticSearch, YARN. - Experience with cybersecurity tools (e.g., Carbon Black, McAfee, SecurityOnion, Snort) and CI/CD tools (SonarQube, Fortify). - Knowledge of DISA STIGs, RMF/ATO processes, NIST 800‑53/800‑171. - Strong written and verbal communication; ability to work both independently and in teams.

Herndon, United states

On site

Junior

11-01-2026