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4 web application engineer jobs found

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United Kingdom Hourly/Freelance web application engineer
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Contract Spy
Dec 31, 2025
Hourly/Freelance
Web Application Engineer - AI Trainer at DataAnnotation, Remote, £Hourly Rate
Contract Spy Remote
Full job description Join the DataAnnotation team and contribute to developing cutting-edge AI systems, while enjoying the flexibility of remote work and setting your own schedule. We are looking for a proficient Web Application Engineer to help advance AI development. As a member of DataAnnotation’s coding team, you’ll be part of a growing community of over 100,000 professionals — including front-end, back-end, full-stack, machine learning, and other engineers — who are driving real-world impact in AI development. Our platform offers an engaging blend of flexibility and challenge: you’ll work closely with state-of the art AI models to take on programming tasks that include creating and solving challenging coding problems, building beautiful apps with rich functionality, and synthesizing insights through data analysis and visualization. Your work directly contributes to refining intelligent systems that learn, adapt, and evolve....
Contract Spy
Dec 31, 2025
Hourly/Freelance
Software Developer (Java) - Quality Assurance (AI Trainer) at Mindrift, Remote, £Freelance Rate
Contract Spy Remote (United Kingdom)
This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. Please submit your resume in English and indicate your level of English proficiency. At Mindrift, innovation meets opportunity. We believe in using the power of collective intelligence to ethically shape the future of AI. What we do The Mindrift platform connects specialists with AI projects from major tech innovators. Our mission is to unlock the potential of Generative AI by tapping into real-world expertise from across the globe. About the Role GenAI models are improving very quickly, and one of our goals is to make them capable of addressing specialized questions and achieving complex reasoning skills. If you join the platform as an AI Tutor in Coding, you'll have the opportunity to collaborate on these projects. Although every project is unique, you might typically: Code generation and code review Prompt evaluation and...
Contract Spy
Dec 30, 2025
Hourly/Freelance
Software Developer (Ruby)/Quality Assurance (AI Trainer) at Mindrift, Remote, £Freelance Rate
Contract Spy Remote (United Kingdom)
This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. Please provide your resume in English and specify your proficiency level. At Mindrift, innovation meets opportunity. We believe in using the power of collective intelligence to ethically shape the future of AI. What we do The Mindrift platform connects specialists with AI projects from major tech innovators. Our mission is to unlock the potential of Generative AI by tapping into real-world expertise from across the globe. About the Role GenAI models are improving very quickly, and one of our goals is to make them capable of addressing specialized questions and achieving complex reasoning skills. If you join the platform as an AI Tutor in Coding, you'll have the opportunity to collaborate on these projects. Although every project is unique, you might typically: Code generation and code review Prompt evaluation and complex...
Contract Spy
Dec 16, 2025
Hourly/Freelance
SEO Specialist - Shopify at Roof Boxed, Chippenham, £Hourly Rate
Contract Spy Chippenham, UK
Job Overview We are looking for an SEO specialist with Shopify to help drive our online presence & google rankings ( www.roofboxed.com) This role is for up to 50 hours per month ( fully flex) 50% on site 50% at home available from month 2. We are open Mon to Thurs 9 till 3, Fri & Sat 8 till 6 . This is a self employed / freelance position. Proven experince and case studies expected on application. Pay range £20 to £25 per hour Responsibilities Conduct comprehensive keyword research to identify opportunities for optimisation across various platforms. Optimise website content, including metadata, headings, and internal linking structures, to improve search engine visibility. Manage and update content within WordPress and other content management systems, ensuring consistency and adherence to SEO standards. Implement technical SEO improvements such as enhancing site speed, mobile responsiveness, and structured data markup....
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