Positiv Cohort

Positiv Cohort in Greater London is looking for a Senior Systems Engineer with extensive experience in electrical engineering and test design. This contract role entails leading complex equipment work packages while managing suppliers and stakeholders effectively. Candidates should have a minimum of 15 years in relevant fields and possess strong communication skills alongside current SC clearance. The role offers a hybrid commute to Stevenage, ensuring flexibility in work arrangements.

Positiv Cohort is seeking a Systems Engineer with a strong Test RMO focus and an Electrical Engineering background to support complex defence equipment delivery. This role involves end-to-end responsibility for equipment work packages, requiring skills in requirements management, stakeholder engagement, and test planning. You will manage the equipment hardware lifecycle and work closely with suppliers and internal teams to ensure successful project delivery. Strong experience in a safety-critical environment is essential, along with a degree in Electrical Engineering or a related field.

Defence Systems Engineering Test & Equipment Delivery- COMPETITIVE RATES OUTSIDE IR-35 The Opportunity We are seeking a Systems Engineer with a strong Test RMO focus and an Electrical Engineering background to support the delivery of complex defence equipment for a leading Customer / End Client. This role sits at the intersection of systems engineering, test, requirements, and project delivery, taking end to end responsibility for assigned equipment work packages - from requirements ownership and supplier management through to testing, qualification, and delivery into the wider system. It is a great opportunity for engineers who enjoy owning equipment-level delivery, working across multiple stakeholders, and ensuring technical compliance through a structured and disciplined test approach. What You'll Be Doing Equipment & Work Package Ownership Own the equipment work package(s) on behalf of the project, including planning, cost control, schedule management, and delivery assurance. Take accountability for the equipment hardware lifecycle, covering development, manufacture, delivery, concessions, non conformances, and fault resolution. Act as the primary technical interface for the equipment with internal stakeholders and the Customer / End Client. Requirements & Test RM Ownership Take full accountability for the requirements set for the allocated equipment(s), working closely with Systems Engineering and Subject Matter Experts. Ensure requirements are clear, traceable, verifiable, and aligned to higher level system needs. Own the equipment test and compliance strategy, including defining test needs and reviewing qualification and verification evidence. Ensure that evidence supports requirements compliance, certification, and acceptance. Test, Verification & Reviews Plan and coordinate equipment level testing and qualification activities. Review and approve test plans, procedures, and reports. Plan and chair design reviews and process gate reviews for assigned equipment. Ensure lessons learned from testing, faults, or concessions are captured and fed back into the design and delivery process. Supplier & Design Authority Management Produce Statements of Work (SOWs) for internal and external design authorities. Technically manage internal and external suppliers/design authorities, ensuring delivery to time, cost, quality, and performance constraints. Maintain regular engagement with suppliers, including on site visits where required. Support contract and delivery discussions by providing clear technical input and risk awareness. Project Management & Governance Create and maintain equipment level plans, showing design, manufacture, test, and delivery activities. Manage risks and opportunities, ensuring mitigations are identified, tracked, and implemented. Provide accurate and timely progress reporting to programme and systems leadership. Support overall programme governance and decision making with robust technical insight. What We're Looking For Essential Skills & Experience Degree or equivalent experience in Electrical Engineering, Systems Engineering, or a related discipline. Experience working as a Systems Engineer or Test RM in a defence, aerospace, or safety critical environment. Strong understanding of requirements management, including ownership, traceability, and verification. Experience defining and managing equipment level test and qualification activities. Proven ability to manage suppliers and design authorities delivering hardware solutions. Comfortable owning cost, schedule, risk, and performance for equipment work packages. Confident stakeholder management skills, including engagement with senior engineers and customers. Desirable Experience working with electrical or electro mechanical equipment. Familiarity with design reviews, certification processes, and formal engineering governance. Experience producing Statements of Work or supporting contractual delivery. Background in delivering equipment through full lifecycle: requirements - design - test - acceptance. Why This Role? Take real ownership of equipment delivery within a complex defence programme. Combine systems engineering discipline with hands on test and delivery responsibility. Work closely with suppliers and customers in a technically demanding environment. Develop both technical depth and project leadership capability.

A leading defence technology company located in the United Kingdom is seeking a Systems Engineer with mechanical bias. The role involves managing and delivering mechanical requirements for missile systems. Candidates should have a degree in Mechanical or Systems Engineering and proven experience in safety-critical environments. Strong experience in requirements engineering is essential. The position offers a dynamic work environment with opportunities for professional growth and innovation.

A prestigious engineering firm seeks a Systems Engineer (Mechanical Bias) in Stevenage. The successful candidate will manage the missile mechanical architecture, ensuring compliance and optimal performance across missile variants. Responsibilities include defining mechanical requirements, managing interfaces, and supporting customer engagement. Essential qualifications include a degree in Mechanical Engineering and experience in systems engineering, particularly in safety-critical industries. The role is pivotal in delivering innovative solutions for complex engineering challenges.

Role Purpose The Systems Engineer (Mechanical Bias) is responsible for the definition, integration, and delivery of the missile mechanical architecture, ensuring that mechanical and thermal solutions are coherent, compliant, and optimised across all missile variants. The role sits at the heart of systems engineering, acting as the focal point for mechanical requirements, interfaces, and validation logic throughout the missile lifecycle. Key Responsibilities Mechanical Architecture & Requirements Lead the establishment and ownership of the Missile Airframe Task Requirements Specification (TRS), ensuring a structured, robust, and traceable mechanical response to the overall Missile TRS. Define and maintain the overall mechanical architecture for all missile variants, ensuring consistency, compliance, and suitability against performance, environmental, and certification requirements. Ensure that mechanical architecture and interfaces are fully aligned with system-level requirements and design intent. Interface Management Manage the mechanical interface with the launcher, ensuring compatibility, robustness, and compliance with system and customer requirements. Lead the management of mechanical and thermal interfaces across the missile, coordinating inputs from multiple engineering domains to ensure fully integrated solutions. Act as the mechanical interface focal point between systems engineering, detailed design teams, and external stakeholders. Modularity, Reuse & Governance Implement and enforce GMA (Generic Missile Architecture) policies, ensuring that modularity, reuse, and commonality objectives are achieved across product variants. Promote architectural decisions that reduce lifecycle cost and complexity while maintaining technical integrity and performance. Verification, Validation & Certification Develop and own the airframe proving logic, defining how mechanical requirements will be validated and verified throughout development. Ensure mechanical compliance to the Airframe TRS, supporting the achievement of missile Certificate of Design and other regulatory approvals. Support reviews, audits, and technical assessments related to mechanical compliance and system integrity. Customer & Stakeholder Engagement Interface with and support the management of customer expectations throughout the development lifecycle, providing clear technical rationale and status on mechanical aspects. Contribute to technical discussions with customers, suppliers, and partners, representing the mechanical architecture with authority and clarity. Planning & Delivery Produce Statements of Work (SOWs), work packages, and associated plans for activities within the mechanical systems engineering scope. Support programme planning, risk management, and delivery activities, ensuring mechanical tasks are achievable, resourced, and appropriately sequenced. Skills & Experience Essential Degree in Mechanical Engineering, Systems Engineering, or a related discipline. Proven experience in systems engineering within complex, safety-critical products (e.g. defence, aerospace, missile systems, or similar). Strong background in mechanical architecture, interfaces, and requirements management. Experience working with requirements specifications, interface control documentation, and verification plans. Ability to operate confidently at system and sub-system level. Desirable Experience with missile, airframe, or launcher systems. Knowledge of thermal management and environmental qualification in harsh operating conditions. Familiarity with modular design approaches and product line architecture. Experience supporting certification or regulatory approval activities.