
We are seeking a highly skilled Senior Systems Engineer with a strong focus on software systems to join our dynamic team in the defence sector This role is pivotal in shaping complex systems that meet diverse customer needs, ensuring robust requirements management, and driving software development aligned with strategic product line goals.
Competitive Rates Outside IR-35

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