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5 senior software engineer jobs found

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senior software engineer £500 - £600 Greater London
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6 Months or more  (5)
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United Kingdom  (5) Hybrid  (1)
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London  (5) Hybrid  (1)
Contract Spy
Sep 07, 2026
6 Months or more
Go Engineer at Codurance, London, 6 Months initial, £600-£650 per day
£600 - £650 per day
Contract Spy London, UK
Codurance is a global software professional services consultancy, helping clients continuously deliver value through the adoption of quality practices and technical excellence. Software craftsmanship is at the heart of everything we do. We build well-crafted software and help development teams get better at continuously delivering software through the application of extreme programming practices and software craftsmanship values. In 2010, our founders started the London Software Craftsmanship Community (LSCC), now the largest and most active software craftsmanship community in the world, with more than 5,500 developers. Codurance was founded in 2013 and has carried that same community spirit ever since. This is an initial 6-month contract, inside IR35.   Day rate: £600 - £650 day (inside IR35) About the role Our client is a fast-growing, well-funded technology company operating a financially critical platform used by a global customer base,...
Contract Spy
Sep 21, 2026
6 Months or more
Senior Full Stack Developer - C#/Azure/Kafka at Appvia, London, 6 Months, £600-£650 per day (Outside IR35)
£600 - £650 per day
Contract Spy London, UK
Senior Full Stack Developer - C#/Azure/Kafka Internal Title: Software Engineering Senior Consultant Location: London, UK (Hybrid - typically 1-2 days per week in office/client site) Contract: 6-month rolling contract Rate: £600-650 per day, Outside IR35 Start: ASAP About Appvia Appvia is a specialist cloud, platform, and solutions engineering consultancy, helping organisations modernise software systems, improve developer productivity, and adopt cloud-native practices that enable long-term, sustainable delivery. Our software engineering capability focuses on modern application development, cloud-native architecture, event-driven systems, and improving delivery outcomes through better engineering practices. We work across complex, high-impact environments in both the public and private sector, delivering solutions where quality, scalability, reliability, and security are critical. About the Role We’re looking for a Senior Full...
Contract Spy
Sep 14, 2026
6 Months or more
Senior Full Stack Developer - C#/Azure/Kafka at Appvia, London, 6 Months, £600-£650 per day (Outside IR35)
£600 - £650 per day
Contract Spy London, UK
Senior Full Stack Developer - C#/Azure/Kafka Internal Title: Software Engineering Senior Consultant Location: London, UK (Hybrid - typically 1-2 days per week in office/client site) Contract: 6-month rolling contract Rate: £600-650 per day, Outside IR35 Start: ASAP About Appvia Appvia is a specialist cloud, platform, and solutions engineering consultancy, helping organisations modernise software systems, improve developer productivity, and adopt cloud-native practices that enable long-term, sustainable delivery. Our software engineering capability focuses on modern application development, cloud-native architecture, event-driven systems, and improving delivery outcomes through better engineering practices. We work across complex, high-impact environments in both the public and private sector, delivering solutions where quality, scalability, reliability, and security are critical. About the Role We’re looking for a Senior Full...
Contract Spy
Sep 07, 2026
6 Months or more
Senior Full Stack Developer - C#/Azure/Kafka at Appvia, London, 6 Months, £600-£650 per day (Outside IR35)
£600 - £650 per day
Contract Spy London, UK
Senior Full Stack Developer - C#/Azure/Kafka Internal Title: Software Engineering Senior Consultant Location: London, UK (Hybrid - typically 1-2 days per week in office/client site) Contract: 6-month rolling contract Rate: £600-650 per day, Outside IR35 Start: ASAP About Appvia Appvia is a specialist cloud, platform, and solutions engineering consultancy, helping organisations modernise software systems, improve developer productivity, and adopt cloud-native practices that enable long-term, sustainable delivery. Our software engineering capability focuses on modern application development, cloud-native architecture, event-driven systems, and improving delivery outcomes through better engineering practices. We work across complex, high-impact environments in both the public and private sector, delivering solutions where quality, scalability, reliability, and security are critical. About the Role We’re looking for a Senior Full...
Contract Spy
Sep 17, 2026
6 Months or more
Non Functional & Performance Test Architect at Snap Analytics, London/Remote, 6 Months, £600-£750 per day
£600 - £750 per day
Contract Spy Hybrid (London, UK)
Description Key Details... Job Type: Contract (6 months) Location: London or Cirencester Working Style: Hybrid (2-3 days onsite a week) Day rate: £600-750 Why this role exists… We're working with a leading wealth management client to strengthen how non-functional quality is embedded across their technology estate Rather than treating performance, resilience, security, and operational readiness as activities that happen towards the end of delivery, we're building a proactive, shift-left approach where these considerations are built into solutions from the start. We are looking for a Test Architect who will sit within the central technology teams and be responsible for defining and implementing the enterprise-wide Performance Engineering and Non-Functional Testing strategy. What you'll be doing... You'll play a central role in shaping how non-functional quality is approached across an entire organisation, helping teams deliver...
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