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12 web application engineer jobs found

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web application engineer £400 - £500 Greater London
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Duration not stated  (10) up to 6 Months  (1) 6 Months or more  (1)
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United Kingdom  (12) Hybrid  (4)
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Contract Spy
May 21, 2026
Duration not stated
Senior Solidity Engineer at Test Yantra, London/Remote, £400 per day
£400 per day
Contract Spy London, UK
Must have skills: Demonstrable experience with Solidity. Strong understanding of blockchain security practices and potential vulnerabilities. Proficiency in Hardhat and Foundry. Experience with Solidity security testing tools like Slither, Mythril, Echidna Practical experience with scripting languages like Javascript or Typescript. Ability to craft unit, integration, fork, and invariant tests, ensuring code longevity. Demonstrable aptitude for best development practices, data structures, algorithms, and methodologies. Bachelor's degree in Computer Science, Engineering, or a related STEM discipline. Excellent debugging and troubleshooting skills. Strong written and verbal communication skills. Self-motivated with the ability to work in a fast-paced, evolving environment. Proficient communication skills in English. Development background in sectors such as banking, finance, or trading, paired with a comprehensive grasp of financial...
Contract Spy
May 20, 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
May 14, 2026
Duration not stated
AI Prompt Engineer/Agent Builder at Grant Thornton, London, £400-£600 per day
£400 - £600 per day
Contract Spy London, UK
AI Prompt Engineer/Agent builder Who we are At Grant Thornton we're building something bold. We're doing things differently - looking to the future, driving ambitious growth and pioneering positive change in our industry. Providing audit, tax and advisory services, we empower clients through strategic insight, curiosity, and genuine partnership. And we empower our people with real opportunity. Our journey from great to exceptional is well underway. With significant investment behind us and a clear strategy for growth, there's real momentum. Our Agile Talent Community (ATC) brings together experienced contract professionals who want choice without losing connection. You work where you add the most value, alongside teams who treat you as a partner rather than a placeholder. Grant Thornton 's Marketing function is delivering an ambitious AI transformation programme - building a suite of Claude-powered agents that automate and augment the full marketing workflow,...
Contract Spy
May 14, 2026
Duration not stated
Senior Solidity Engineer at Test Yantra, London/Remote, £400 per day
£400 per day
Contract Spy Hybrid (London, UK)
Must have skills: Demonstrable experience with Solidity. Strong understanding of blockchain security practices and potential vulnerabilities. Proficiency in Hardhat and Foundry. Experience with Solidity security testing tools like Slither, Mythril, Echidna Practical experience with scripting languages like Javascript or Typescript. Ability to craft unit, integration, fork, and invariant tests, ensuring code longevity. Demonstrable aptitude for best development practices, data structures, algorithms, and methodologies. Bachelor's degree in Computer Science, Engineering, or a related STEM discipline. Excellent debugging and troubleshooting skills. Strong written and verbal communication skills. Self-motivated with the ability to work in a fast-paced, evolving environment. Proficient communication skills in English. Development background in sectors such as banking, finance, or trading, paired with a comprehensive grasp of financial...
Contract Spy
May 13, 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
May 07, 2026
Duration not stated
Senior Solidity Engineer at Test Yantra, London/Remote, £400 per day
£400 per day
Contract Spy Hybrid (London, UK)
Must have skills: Demonstrable experience with Solidity. Strong understanding of blockchain security practices and potential vulnerabilities. Proficiency in Hardhat and Foundry. Experience with Solidity security testing tools like Slither, Mythril, Echidna Practical experience with scripting languages like Javascript or Typescript. Ability to craft unit, integration, fork, and invariant tests, ensuring code longevity. Demonstrable aptitude for best development practices, data structures, algorithms, and methodologies. Bachelor's degree in Computer Science, Engineering, or a related STEM discipline. Excellent debugging and troubleshooting skills. Strong written and verbal communication skills. Self-motivated with the ability to work in a fast-paced, evolving environment. Proficient communication skills in English. Development background in sectors such as banking, finance, or trading, paired with a comprehensive grasp of financial...
Contract Spy
May 06, 2026
Duration not stated
Automation Test Engineer at ByDesign Secure, London, £500 per 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
May 06, 2026
up to 6 Months
LAN Engineer at WWT EMEA UK LIMITED, London, 3 Months, to £400 per day
£300 - £400 per day
Contract Spy London, UK
World Wide Technology (WWT) is a global technology integrator and supply chain solutions provider. Through our culture of innovation, we inspire, build, and deliver business results, from idea to outcome. World Wide Technology UK is looking for an Network Engineer with strong experience in campus Cisco network technologies, Wi-Fi, campus security, and ideally some knowledge of Fortinet firewalls, though internal support for Fortinet is available; familiarity with Cisco Catalyst Centre, automation pipelines, and a willingness to perform a range of tasks from racking equipment to liaising with end users is essential. Candidates will be involved in network design, implementation standards, automation, testing procedures, and the use of third-party and internal resources for specialized tasks.  This is a contract Role & Inside IR35 Network Engineer - LAN Contract Duration: 3 months Rolling Contract Location: London, United Kingdom (Hybrid with...
Contract Spy
May 05, 2026
Duration not stated
Azure DevOps Engineer at Scrumconnect Consulting, London, £500 per day (Outside IR35)
£500 per day
Contract Spy London, UK
500 outside IR35 City London Province Greater London Country United Kingdom Postal Code EC1A Job Description About Scrumconnect Consulting:   Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million UK citizens. With a strong commitment to user-centred design and agile delivery, and more to deliver innovative digital services that matter Role Overview: We're seeking a Azure DevOps Engineer to join our dynamic team. This role requires a blend of technical expertise, leadership, and a passion for cloud technologies. You'll be instrumental in automating, optimizing, and securing our Azure environments, driving efficiency, and innovation across our projects. Responsibilities: Lead Azure infrastructure projects,...
Contract Spy
May 01, 2026
6 Months or more
Technical Business Analyst at Codurance, London Area, 6 Months, £500-£600 per day
£500 - £600 per day
Contract Spy London Area, United Kingdom
Contract Technical Business Analyst - Mobile Development | 6 Months | £500-600/day   Are you an exceptional Senior Technical Business Analyst who embodies our values of pragmatism, professionalism, and transparency? We're seeking an individual who shares our commitment to excellence. This role is predominantly remote, though you may be required to travel to our London office once or twice over the course of the engagement.   As a Codurance Technical Business Analyst, you will be a pivotal link between clients, stakeholders and team members, ensuring successful delivery outcomes for all parties involved. This role is centred around a mobile application being developed for a large logistics organisation. You will be the sole BA embedded within a team of client engineers, working in parallel with Codurance colleagues on a broader engagement. It thrives on building trust and fostering collaborative environments, making it ideal for someone who can...
Contract Spy
Apr 29, 2026
Duration not stated
Senior Solidity Engineer at Test Yantra, London/Remote, £400 per day
£400 per day
Contract Spy Hybrid (London, UK)
Must have skills: Demonstrable experience with Solidity. Strong understanding of blockchain security practices and potential vulnerabilities. Proficiency in Hardhat and Foundry. Experience with Solidity security testing tools like Slither, Mythril, Echidna Practical experience with scripting languages like Javascript or Typescript. Ability to craft unit, integration, fork, and invariant tests, ensuring code longevity. Demonstrable aptitude for best development practices, data structures, algorithms, and methodologies. Bachelor's degree in Computer Science, Engineering, or a related STEM discipline. Excellent debugging and troubleshooting skills. Strong written and verbal communication skills. Self-motivated with the ability to work in a fast-paced, evolving environment. Proficient communication skills in English. Development background in sectors such as banking, finance, or trading, paired with a comprehensive grasp of financial...
Contract Spy
Apr 22, 2026
Duration not stated
Senior Solidity Engineer at Test Yantra, London/Remote, £400 per day
£400 per day
Contract Spy Hybrid (London, UK)
Must have skills: Demonstrable experience with Solidity. Strong understanding of blockchain security practices and potential vulnerabilities. Proficiency in Hardhat and Foundry. Experience with Solidity security testing tools like Slither, Mythril, Echidna Practical experience with scripting languages like Javascript or Typescript. Ability to craft unit, integration, fork, and invariant tests, ensuring code longevity. Demonstrable aptitude for best development practices, data structures, algorithms, and methodologies. Bachelor's degree in Computer Science, Engineering, or a related STEM discipline. Excellent debugging and troubleshooting skills. Strong written and verbal communication skills. Self-motivated with the ability to work in a fast-paced, evolving environment. Proficient communication skills in English. Development background in sectors such as banking, finance, or trading, paired with a comprehensive grasp of financial...
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