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5 senior systems engineer jobs found

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senior systems engineer Remote
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£600 - £700  (1) £700 and up  (2)
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Remote  (5) London  (2)
Outside Spy
Sep 16, 2026
Duration not stated
Engineering Manager - contract - outside IR35 at Mindera, Remote, £Contract Rate
Outside Spy Remote
We are seeking a passionate Software Engineering Manager who will provide technical expertise and operate with excellence. Being creative, curious, and confident, you will be an integral part of our empowered, self-managing, multi-disciplinary engineering teams - designing, building, releasing, and maintaining products. You will play a key role in driving our ambition to create a best-in-class software engineering team, environment, and culture. This is an initial 12 month contract (outside IR35) that requires you to work on client site 3 days a week in London, Paddington. Requirements Your key accountabilities will include: Team Management: Build, mentor, and manage a high-performing software engineering team. Foster a culture of collaboration, innovation, and continuous improvement within the team. Facilitate communication and collaboration among team members. Ensure budgets, people and resource allocation, and workload, balance across projects. Agile...
Outside Spy
Sep 10, 2026
6 Months or more
Senior C# Engineer - .NET 9/10, AWS Lambda, SQS, SNS - OUTSIDE IR35 at Smart-Sourcer, 100% Remote (UK only), 11 Months, £700-£800 per day
£700 - £800 per day
Outside Spy Remote (United Kingdom)
Senior C# Engineer - .NET 9/10, AWS Lambda, SQS, SNS - OUTSIDE IR35 £700-£800 per day - Outside IR35 - 100% Remote - 11 month rolling contract Takeaway: Contribute to the architecture and build of a major greenfield B2B SaaS platform as a deeply senior, hands-on C# engineer, with heavy emphasis on deep .NET engineering , high-performance distributed systems , and real-world AWS serverless delivery . You'll also have the opportunity to develop hands-on skills with Claude Code , one of the most advanced AI-assisted development tools in the industry. Role Overview: You'll operate as the technical spearhead for a greenfield product build, reporting to the Director of Engineering. Expect deep Back End engineering, distributed system design, and high-quality serverless delivery, plus the chance to adopt modern AI-assisted development practices as part of your workflow. What You'll Bring: Senior/Staff-level Back End mastery in C# and .NET 9/10 , with the...
Outside Spy
Sep 17, 2026
up to 6 Months
Product Manager - Central London with hybrid working (four days per week remote) at Gilbert Scott Associates, Central London with hybrid working (four days per week remote), 6 Months, £Contract Rate
Outside Spy Remote (Central London with hybrid working (four days per week remote), UK)
Product Managers required by a not-for-profit organisation in central London with hybrid working (four days per week remote), where you can join a growing and evolving product team, solving real needs for real people. Assignment - Product Manager Location - Central London with hybrid working (four days per week remote) Skills - Product Manager, Product Owner, Consumer Apps or Field Service Management, Agile, Commercial Awareness, Vendor Management Duration - Six months with possible extensions Rate - £450 to £500 + VAT per day (outside IR35) To qualify the Product Owner will have demonstrable experience within product ownership and/or product management, a good understanding of Agile, have strong commercial awareness (ie the ability to link product decisions to business value, cost optimisation and ROI) and good communication (both verbal and written), relationship building, stakeholder management and vendor management competencies. In addition, the Product Owners...
Outside Spy
Sep 14, 2026
6 Months or more
Engineering Manager (Consulting) - Architecture, AI Engineering & Agentic Systems - Global at Smart-Sourcer, London & 80% remote, 6 Months, £Contract Rate
Outside Spy Remote (London & 80% remote, UK)
Engineering Manager (Consulting) - Architecture, AI Engineering & Agentic Systems - Global Enterprises The takeaway: This is a consulting role for an ex-Tech Lead or Engineering Manager who can guide enterprise engineering teams, shape architecture, and embed modern AI engineering processes & practices (including agentic coding systems like Claude Code ) without writing code themselves, but with the skills to understand what the engineers are doing and to support them through the transition. You'll be the person who understands how everything works under the HOOD, even if you're not the one typing, guiding and influencing the stakeholders to ensure the secure and successful adoption of AI engineering within global corporations. About the Role: We're hiring an Engineering Manager (Consulting) to help large organisations modernise their engineering capability and adopt production-grade AI. You'll work across multiple enterprise scale clients, shaping...
Outside Spy
Sep 10, 2026
Duration not stated
Security Architect at NexGen Associates, Remote, £750-£800 per day
£750 - £800 per day
Outside Spy Remote
Security Architect – DV Cleared – Defence contract role Location: Preston – onsite three days per week, two days per week remote Day rate: £750 - £800 per day Outside IR35 Initial contract: Four months, likely to extend for at least a further 12 months You will only be considered for this contract role if you hold a current DV clearance, this is essential to the nature of the work you will undertaking. NexGen Associates is recruiting for an experienced Senior Security Architect to support a highly sensitive technology programme within a secure environment on a contract basis. The successful contractor will provide security architecture expertise across complex, business-critical systems involving multiple technologies, suppliers and delivery teams. You will help shape the programme’s security direction, ensuring that risks and protection requirements are properly considered throughout the design and implementation process. Due to the sensitive nature of the work,...
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