Groundwater Modelling Decision Support Initiative (GMDSI)

United States
12,000 Total Employees
Year Founded: 1952

Jobs at Groundwater Modelling Decision Support Initiative (GMDSI)

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Greentech • Professional Services • Software • Analytics
Serves as an underwater acoustics subject matter expert supporting airborne and naval anti-submarine warfare systems. Responsibilities include acoustic and post-mission analysis, operator interface and manual development, operational testing, acceptance testing, operator training, test scenario development, requirements support, system integration, customer liaison, demonstrations, and proposal and business development activities. Domestic and international travel is required.
Greentech • Professional Services • Software • Analytics
Analyzes underwater acoustic data and post-mission results, designs acoustic-system operator interfaces, leads operational testing and acceptance events, develops training and test scenarios, and supports requirements, proposals, demonstrations, and customer engagement. The role requires Airborne or Naval ASW expertise, passive and active acoustic classification skills, system development knowledge, and the ability to travel domestically and internationally while meeting NATO and Canadian security requirements.
Greentech • Professional Services • Software • Analytics
Designs and delivers hardware-focused systems for complex defence and C4I programmes. Responsibilities include requirements capture, interface definition, design analysis, subsystem and cabling specifications, standards application, integration and testing, technical documentation, supplier coordination, and lifecycle support. The role collaborates with safety, security, logistics, and systems integration teams across development, delivery, research, and in-service programmes.
Greentech • Professional Services • Software • Analytics
Leads the pre-contract and post-contract management of complex international aircraft-system subcontracts. Responsibilities include supplier assessment, RFP and statement-of-work development, bid evaluation, negotiations, cost and schedule management, risk and change control, technical integration oversight, quality and airworthiness coordination, performance reporting, and corrective-action planning. The role interfaces with subcontractors, engineering, supply chain, commercial, quality, configuration management, program teams, and customers, with travel of up to 20%.
Greentech • Professional Services • Software • Analytics
Provides technical leadership for vehicle-level communications systems, including requirements, architecture, interfaces, trade studies, integration, testing, validation, and technical documentation. Leads multidisciplinary engineering activities, mentors junior staff, coordinates lab resources, manages traceability and configuration, ensures compliance with military and quality standards, and supports vehicle inspections, retrofits, field modifications, and customer engagements.
Greentech • Professional Services • Software • Analytics
The Quality Engineering Specialist leads quality assurance for engineering and software development projects in regulated aerospace and defense environments. Responsibilities include creating QA plans, conducting audits, managing non-conformances and corrective actions, supporting configuration and design reviews, monitoring testing, facilitating investigations, analyzing quality data, reporting metrics, and ensuring compliance with AS9100, ISO 9001, contractual, and airworthiness standards.
2 Days AgoSaved
Hybrid
Hastings, East Sussex, England, GBR
Greentech • Professional Services • Software • Analytics
Supports Project Managers and Cost Account Managers by maintaining project plans and schedules, monitoring costs, resources, risks, and progress, producing reports, supporting project reviews, tracking actions, and identifying potential issues. The role requires strong organization, communication, attention to detail, collaboration, and willingness to develop a career in project controls or project management.
Greentech • Professional Services • Software • Analytics
Leads enterprise infrastructure and cloud services across Canada and the United Kingdom. Oversees cloud platforms, servers, virtualization, storage, backup, Microsoft 365, identity, security, disaster recovery, monitoring, automation, governance, and service reliability. Manages modernization toward hybrid cloud, infrastructure as code, and platform automation while directing technical teams, budgets, vendors, contracts, operational metrics, compliance, recruitment, and talent development.
Greentech • Professional Services • Software • Analytics
Designs and manages cloud-agnostic infrastructure, CI/CD pipelines, containerized applications, monitoring, automation, and security controls across AWS, Azure, GCP, and on-premises environments. The role includes scripting, infrastructure as code, network and virtualization management, troubleshooting, automated testing, and technology evaluation. It requires collaboration across stakeholders and hybrid work in Calgary or Ottawa, with eligibility for Canadian government security clearance.
Greentech • Professional Services • Software • Analytics
Designs and manages CI/CD pipelines, cloud-agnostic infrastructure, containerized applications, monitoring systems, and automated deployments across AWS, Azure, GCP, and on-premises environments. The role involves Terraform, Kubernetes, Ansible, Docker, scripting, infrastructure troubleshooting, security hardening, network and virtualization management, test automation, and evaluating DevOps tools. This hybrid position requires collaboration with stakeholders throughout the software development lifecycle and eligibility for Canadian government security clearance.
Greentech • Professional Services • Software • Analytics
Provides security engineering expertise across complex defense and cyber projects. Responsibilities include developing security architectures and PKI solutions, producing security documentation and assurance evidence, managing risks and mitigations, supporting accreditation, secure configuration, systems integration, requirements traceability, and security testing. The role collaborates with project managers, solution designers, customers, accreditors, and test teams while ensuring compliance with applicable security frameworks and standards.
Greentech • Professional Services • Software • Analytics
Develops and assures project security deliverables, architectures, documentation, risk mitigations, accreditation artifacts, secure configurations, and security testing evidence. Collaborates with project managers, solution designers, customers, accreditors, and test teams to ensure security requirements are traced through system design and implementation. The role requires experience with complex defense systems, security architectural frameworks, accreditation, and compliance.
Greentech • Professional Services • Software • Analytics
Develops secure system architectures and cybersecurity controls for defense systems. Performs threat modeling, vulnerability assessments, security testing, exploitability analysis, and risk assessments. Creates security test procedures, system security plans, audit artifacts, and security reports while supporting SA&A activities and military security standards. The role also includes stakeholder engagement, technical validation, mentoring junior personnel, and vulnerability remediation tracking.
Greentech • Professional Services • Software • Analytics
Assembles, reworks, operates, and inspects electronic and electromechanical equipment using detailed drawings, parts lists, and manufacturing instructions. Records quality and production results, completes work orders within deadlines, meets productivity expectations, and communicates effectively with team members. The role requires precise, repetitive hands-on work, occasional microscope use, basic computer skills, and adherence to quality standards in an onsite production environment.
9 Days AgoSaved
Hybrid
Hastings, East Sussex, England, GBR
Greentech • Professional Services • Software • Analytics
Leads product and systems security engineering for complex, safety-critical airborne mission systems. Responsibilities include owning security architecture, defining secure-by-design strategies and requirements, leading threat modeling and risk assessments, guiding accreditation activities, advising multidisciplinary engineering teams, reviewing security evidence, engaging assurance stakeholders, and coaching security engineers across a major defence programme.
9 Days AgoSaved
Hybrid
Hastings, East Sussex, England, GBR
Greentech • Professional Services • Software • Analytics
Develops product and systems security for safety-critical airborne mission-computing systems. Responsibilities include security requirements, threat modeling, vulnerability analysis, risk assessments, secure architectures, security assurance evidence, accreditation support, and collaboration with systems, software, hardware, safety, and certification engineers on defence programmes.
13 Days AgoSaved
Hybrid
Hastings, East Sussex, England, GBR
Greentech • Professional Services • Software • Analytics
Manage supplier quality performance, audits, non-conformances, corrective actions, approvals, documentation, and continuous improvement. Partner with Procurement, Supply Chain, suppliers, and internal stakeholders to resolve quality issues, maintain compliance, support counterfeit prevention, and improve supplier processes. The role includes reviewing technical quality documentation, leading supplier development activities, managing returns, and conducting occasional UK and European supplier travel.
Greentech • Professional Services • Software • Analytics
Pilote des systèmes d’hélicoptère sans pilote pour des vols d’essai, de R&D, de post-production, de démonstration et de formation client. Prépare et exécute des plans de vol, rédige des rapports techniques, maintient les procédures opérationnelles et veille à la conformité réglementaire et à la sécurité des vols. Collabore avec l’ingénierie pour l’intégration, les essais, le dépannage et l’amélioration des systèmes SATP.
Greentech • Professional Services • Software • Analytics
Supports the integration, verification, qualification, and testing of complex hardware, software, firmware, and communication systems. Develops test cases and procedures, executes laboratory tests, analyzes results, documents defects and findings, maintains automated test scripts, and supports requirements traceability. Collaborates with Agile/Scrum engineering teams on technical analysis, design documentation, reviews, and system validation under the guidance of experienced engineers.
Greentech • Professional Services • Software • Analytics
Develop and maintain software for mission-critical air and naval sonar systems. Responsibilities include requirements analysis, software design, coding, testing, integration, troubleshooting, root cause analysis, code reviews, technical documentation, and collaboration across engineering teams. The role also provides technical support and presents software designs and validation results. Candidates will work in Agile environments using modern programming languages, object-oriented design, UML, Linux, and version control systems.