Positiv Cohort Ltd

Systems Engineer- Requirements

Positiv Cohort Ltd  •  Stevenage, GB (Onsite)  •  11 days ago
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Job Description

We’re looking for an experienced Technical Requirements Systems Engineer to drive the definition, structure, and governance of system and software requirements for a complex, high‑impact engineering programme.

This is a critical role at the heart of delivery — translating stakeholder needs into clear, testable, and traceable requirements that underpin system design, integration, and validation.

If you thrive on bringing structure to complexity and enjoy working across systems, software, and testing domains, we’d love to hear from you.

🔍 About the Role

You’ll take ownership of the requirements lifecycle — from early stakeholder engagement through to detailed specification — ensuring alignment across engineering, development, and test teams.

You’ll lead the development of both high‑level and detailed specifications, with a strong focus on traceability, governance, and real-world testability

🧩 Key Responsibilities

🔹 Requirements Analysis & Governance

  • Analyse and refine system requirements to align with programme objectives
  • Translate stakeholder needs into clear, structured, and testable requirements
  • Develop and maintain a robust requirements governance framework
    • Traceability (end-to-end)
    • Version control
    • Change management

🔹 Stakeholder Engagement

  • Collaborate with a wide range of stakeholders, including:
    • End users of test systems
    • System designers and engineers
    • Software developers
    • Integration & test teams
  • Facilitate workshops, reviews, and requirement validation sessions
  • Ensure alignment between technical delivery and business needs

🔹 Documentation & Specification

  • Own the creation and progression of:
    • Technical Requirements Specification (TRS)
    • Software Requirements Specification (SRS)
  • Produce high-quality documentation that is:
    • Clear, complete, and unambiguous
    • Structured and maintainable
    • Fit for engineering and test teams

🔹 System & Software Requirements Development

  • Define end-to-end system requirements including:
    • Hardware
    • Software
    • Interfaces
    • Constraints
  • Break down high-level requirements into:
    • Detailed software functionality
    • Performance and behavioural requirements
  • Ensure full traceability between TRS and SRS

🔹 Integration, Test & Simulation

  • Ensure requirements are testable and measurable
  • Align requirements with system integration and validation strategies
  • Support the use of simulation-led testing to validate system behaviour

📦 Key Deliverables

Technical Requirements Specification (TRS)

A complete, high-level requirements document covering the full test system, including:

  • Stakeholder-driven inputs
  • Hardware, software, and interface requirements
  • System constraints and dependencies

Software Requirements Specification (SRS)

A detailed, structured breakdown of software requirements that:

  • Defines system functionality and behaviour
  • Links directly back to TRS (full traceability)
  • Supports development, integration, and testing

🛠️ What We’re Looking For

  • Strong experience in requirements engineering within complex systems environments
  • Proven track record delivering TRS / SRS documentation
  • Deep understanding of:
    • System integration & testing
    • Verification & validation processes
    • Simulation-based testing approaches
  • Experience with requirements management tools (e.g. DOORS, Jama, Polarion)
  • Excellent stakeholder engagement and communication skills
  • Highly structured, detail-oriented, and analytical mindset

🎯 Why Join?

  • Work at the centre of a technically complex, high-impact programme
  • Shape how requirements drive design, development, and testing
  • Collaborate with multidisciplinary teams across engineering, software, and operations
  • Play a key role in ensuring successful system delivery
Positiv Cohort Ltd

About Positiv Cohort Ltd

Agile. Capable. Cohort-Powered

Positiv+ Cohort is a specialist professional services company built for high-stakes, high-assurance delivery.

We partner with senior leaders in defence, government, and other secure industries to turn complex objectives into measurable outcomes. Based in Farnborough, our teams bring over 25 years of domain expertise across cybersecurity, cloud infrastructure, systems and software engineering.

Our leadership team has held the same types of roles as many of our clients - so we understand the pressures, constraints, and need for results from the inside out. Whether you’re dealing with legacy integration, digital transformation, or accelerated delivery requirements, we adapt quickly and deliver reliably.

We shape every engagement to match the scope, objectives, and pace of your project — offering outcome-focused, security-cleared services that help programmes succeed under pressure.

Our Services

+ Project Delivery & Professional Services

+ Embedded Systems Design & Validation

+ Software-Defined Systems

+ Advanced Engineering & Project Management

+ Cyber, Cloud & Digital Enablement

Structured Oversight and Assurance

Why Positiv+?

+ Specialists in secure, complex environments

+ Agile, accountable delivery teams

+ Deep technical and domain knowledge

+ High-trust engagements with structured assurance

Contact the Cohort by sending a message, visiting our website or emailing hello@positivcohort.com

Industry
Architecture & Engineering
Company Size
11-50 employees
Headquarters
Farnborough, GB
Year Founded
Unknown
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