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10 software engineer jobs found

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software engineer £500 - £600 Greater London
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Duration not stated  (7) 6 Months or more  (2) up to 6 Months  (1)
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Contract Spy
Jul 02, 2026
Duration not stated
Software Engineer - AI Trainer - Remote - 8/20 hrs week - Freelance at 10x Team, London, £60 - £110 an hour
£400 - £800 per day
Contract Spy Remote (London, UK)
Updated: 21 June 2026 Freelance 8–20 hrs/week Remote (EU/UK)   Are you an experienced software engineer who instinctively spots gaps in technical reasoning and understands the complex realities of software development? Do you have 8 to 20 hours per week available alongside your main job or freelance projects? Join us in shaping how AI understands and applies software engineering expertise at scale.   About the Role 10x.team connects expert freelancers with leading AI labs building next-generation models. We are looking for knowledgeable software engineers based in the EU or UK to enhance the accuracy, depth, and real-world relevance of AI-powered engineering systems.   What You Will Do Review and refine AI-generated outputs related to software engineering, technical documentation, code quality, and practical aspects of software development Evaluate AI responses for technical accuracy, practicality, and alignment...
Contract Spy
Jun 22, 2026
Duration not stated
Senior Software Engineer (Contract) at Softwire, London Area, £500-£650 per day
£500 - £650 per day
Contract Spy London Area, United Kingdom
Senior Software Engineer - Outside IR35 - Contract (Insurance) About the role Essential: Self-starter, someone who can pick up context quickly, drive outcomes efficiently, and to a high quality Competent in doing high-level designs, solution management, and scoping Understanding of data modelling best practices Ability to translate technical solutions to non-technical stakeholders and bring them on the journey Experience working in an agile delivery environment Experience working with React, TypeScript, Azure, Microsoft SQL, and Databricks (if they don’t have all of these, that’s workable, but be good to understand any they don’t have experience with) Frontend: React + TypeScript + Vite Material UI with Emotion for styling TanStack React Query 5 for server state React Router 7 React Hook Form+Yup for forms/validation MSAL for Entra ID auth Jest+Testing Library for unit tests; Playwrightfor E2E and visual tests Hosted as an Azure Static...
Contract Spy
Jun 17, 2026
Duration not stated
Senior Software Engineer at Softwire, London, £500-£650 per day (Outside IR35)
£500 - £650 per day
Contract Spy London, UK
About the job   Senior Software Engineer - Outside IR35 - Contract (Insurance)   About the role   Essential:   Self-starter, someone who can pick up context quickly, drive outcomes efficiently, and to a high quality Competent in doing high-level designs, solution management, and scoping Understanding of data modelling best practices Ability to translate technical solutions to non-technical stakeholders and bring them on the journey Experience working in an agile delivery environment Experience working with React, TypeScript, Azure, Microsoft SQL, and Databricks (if they don’t have all of these, that’s workable, but be good to understand any they don’t have experience with)   Frontend:   React + TypeScript + Vite Material UI with Emotion for styling TanStack React Query 5 for server state React Router 7 React Hook Form+Yup for...
Contract Spy
Jun 23, 2026
Duration not stated
Software Engineer (3 month contract) at Sphere, London SE1 1UN, £600 a day
£600 per day
Contract Spy Southwark St, London SE1 1UN, UK
ABOUT US: Here at Sphere (www.onsphere.com) we operate in the dynamic world of energy commodities trading, where information and speed are crucial for success. However, data in these markets is often fragmented and opaque, leaving participants with incomplete and poor-quality information…. Here at Sphere, we aim to bring order to this chaos by leveraging our innovative voice and AI technologies, as well as our patented Liquidity Lake, which consolidates all actionable liquidity onto one screen. Enhanced by AI insights and quantitative analytics, our platform is designed to support even the most skilled traders; See more. Win more. THE OPPORTUNITY: Pick up and own, the transformation of a typescript library running within Electron Produce recommendations for improvements to the interaction of the typescript library with the server backend and separately with the UI Refactor the library to drastically reduce the daily maintenance...
Contract Spy
Jun 16, 2026
up to 6 Months
Software Engineer at Sphere, London, 3 Months, £600 per day
£600 per day
Contract Spy Southwark St, London SE1 1UN, UK
ABOUT US:   Here at Sphere (www.onsphere.com) we operate in the dynamic world of energy commodities trading, where information and speed are crucial for success. However, data in these markets is often fragmented and opaque, leaving participants with incomplete and poor-quality information…. Here at Sphere, we aim to bring order to this chaos by leveraging our innovative voice and AI technologies, as well as our patented Liquidity Lake, which consolidates all actionable liquidity onto one screen. Enhanced by AI insights and quantitative analytics, our platform is designed to support even the most skilled traders; See more. Win more.   THE OPPORTUNITY:   Pick up and own, the transformation of a typescript library running within Electron Produce recommendations for improvements to the interaction of the typescript library with the server backend and separately with the UI Refactor the library to drastically reduce the...
Contract Spy
Jun 29, 2026
Duration not stated
Senior Data Engineer (Contract) at Softwire, London Area, £550-£650 per day
£550 - £650 per day
Contract Spy London Area, United Kingdom
Senior Data Engineer - Outside IR35 - Contract (Insurance Client) About the role Softwire is seeking an experienced Data Engineer with a strong knowledge of Python (including PySpark) and SQL, and a good understanding of software engineering best practices (including SDLC, CI/CD, automated testing, DevOps) to join an established small team working on delivering a data & analytics platform in Microsoft Fabric for a speciality insurance provider. This is a senior, hands-on role that will require owning and delivering workstreams independently while supporting a junior team member. Key Responsibilities Building new ingestion pipelines in Microsoft Fabric using Python (PySpark) notebooks Modelling data for consumption in Power BI through a dimensional gold warehouse layer and a semantic model Improving platform performance Working across cross-functional areas such as logging, monitoring (with Azure Log Analytics and Fabric) and data governance (within...
Contract Spy
Jun 18, 2026
Duration not stated
Automation Test Engineer at ByDesign Secure, London, £500 a day
£500 per day
Contract Spy London, UK
Opening: Join the Mission We deliver secure, mission‑critical platforms and services for government and regulated organisation’s operating in high‑assurance environments. Our teams work at the intersection of cloud engineering, DevSecOps, and platform enablement, helping organisation’s adopt Google Distributed Cloud (air‑gapped GCP). This role offers the opportunity to shape automation‑first testing strategies for new cloud‑native platforms, influence tooling and quality standards, and ensure solutions are secure, resilient, compliant, and testable by design. Role Purpose As an Automation Test Engineer, you will be responsible for designing, building, and operating automated testing capabilities across platform and application delivery teams. You will: Define and implement test automation strategies aligned to IaC, CI/CD, and DevSecOps practices Select, evaluate, and trade‑off test tooling suitable for air‑gapped Google Distributed Cloud...
Contract Spy
Jun 17, 2026
6 Months or more
Senior SDET at Codurance, London, 6 Months, £500 per day
£500 per day
Contract Spy London, UK
Description Codurance is an innovative consultancy that helps organisations embrace the power of technology to drive business success. We are currently seeking an experienced contract SDET / QA Engineer to join our dynamic team. As a Codurance SDET, you will be embedded directly within a high-autonomy engineering pod, owning quality end-to-end and working alongside a small team of AI-enabled engineers. This is an initial  6-month contract, inside IR35. Day rate: £500 Requirements To be successful in this role, you should have: Strong test automation skills with a senior SDET or QA Engineer mindset and you own quality end-to-end, not just execute test cases Experience building regression, feature validation, and performance test coverage, ideally from a low or undefined baseline Comfort operating with high autonomy inside a small engineering squad, without a dedicated QA lead above you An AI-first approach to your...
Contract Spy
Jun 11, 2026
Duration not stated
Automation Test Engineer at ByDesign Secure, London, £500 per day (Outside IR35)
£500 per day
Contract Spy London, UK
Opening: Join the Mission We deliver secure, mission‑critical platforms and services for government and regulated organisation’s operating in high‑assurance environments. Our teams work at the intersection of cloud engineering, DevSecOps, and platform enablement, helping organisation’s adopt Google Distributed Cloud (air‑gapped GCP). This role offers the opportunity to shape automation‑first testing strategies for new cloud‑native platforms, influence tooling and quality standards, and ensure solutions are secure, resilient, compliant, and testable by design. Role Purpose As an Automation Test Engineer, you will be responsible for designing, building, and operating automated testing capabilities across platform and application delivery teams. You will: Define and implement test automation strategies aligned to IaC, CI/CD, and DevSecOps practices Select, evaluate, and trade‑off test tooling suitable for air‑gapped Google Distributed Cloud...
Contract Spy
Jun 29, 2026
6 Months or more
Product Lead - New Venture, Wonderbly Group at Wonderbly, London, 6 Months, Up to £500 per day
£450 - £500 per day
Contract Spy Hybrid (London, UK)
Product Lead Contract role - 3 -5 days per week, 6 months initially Location - Hybrid, Central London office Day rate - Up to £500 per day, depending on experience Reports to - Chief Product Officer, Wonderbly Group   The Opportunity Wonderbly Group has spent years perfecting the art of personalised books, stories that put real people at the heart of the narrative. Now we 're launching a new venture in an adjacent space that moves us deeply: helping people capture the memories, voices and stories of the people they love, and turn them into beautiful, lasting books and journals. The bones of this business already exist. What we need is someone to help us reimagine it from the ground up: new technology, a new digital product, a transformed ecommerce experience and a fresh brand expression, while preserving the emotional heart of what makes this category so meaningful. We're looking for a builder, someone with a genuine passion for...
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