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38 web application engineer jobs found

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United Kingdom web application engineer £400 - £500
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Contract Spy
Jan 06, 2026
6 Months or more
Embedded Software Engineer at PentenAmio UK, Tewkesbury, 6 Months, £300-£650 per day
£300 - £650 per day
Contract Spy Tewkesbury GL20, UK
Location: Tewkesbury (Hybrid) Work Type: Contract (6 month) Salary: £300 - £650 PD (Inside IR35) Clearance Required: SC About PentenAmio PentenAmio is a leading provider of advanced digital security solutions that power national security and resilience across the UK, Australia and our allies. Focused on solving complex digital challenges that others avoid, we embrace the impossible to deliver transformative technologies that protect those who protect us. Across the UK and Australia, PentenAmio combines a legacy of knowledge and proven delivery across secure mobility and AI-driven deception technologies. Our work spans Government and Defence markets across civil and military applications, powering intelligent advantage on a global scale. Typical Activities Working in collaboration with internal stakeholders across Engineering, Product, and Technical Leadership, the Embedded Software Engineer will design, develop and deliver robust embedded software...
Contract Spy
Jan 02, 2026
Duration not stated
Frontend Engineer at Gendo, London, £400-£650 per day
£400 - £650 per day
Contract Spy London, UK
About Gendo Gendo is a revolutionary, browser-based AI platform designed to empower architects and designers to generate accurate, high-quality visual representations of their designs in seconds, not days - a huge improvement on existing workflows. Within just 12 months of launching, we have 62,000+ architects and designers using Gendo to produce visualizations 100x faster than traditional workflows. We pride ourselves on being a lean, focussed and efficient team formed of highly talented individuals. This, and our product driven mantra, led to us securing both substantial pre-seed-stage and seed-stage funding from renowned investors within the space, enabling us to expand our team and deliver on our ambitious vision. What we value At Gendo, design is our core mission. We believe in the power of tools to elevate creative expression and push the boundaries of architectural possibility. We don't build in a vacuum. We have refined our technology in direct...
Contract Spy
Dec 29, 2025
6 Months or more
Embedded Software Engineer at PentenAmio UK, Tewkesbury, 6 Months, £300-£650 per day
£300 - £650 per day
Contract Spy Tewkesbury GL20, UK
Location: Tewkesbury (Hybrid) Work Type: Contract (6 month) Salary: £300 - £650 PD (Inside IR35) Clearance Required: SC About PentenAmio PentenAmio is a leading provider of advanced digital security solutions that power national security and resilience across the UK, Australia and our allies. Focused on solving complex digital challenges that others avoid, we embrace the impossible to deliver transformative technologies that protect those who protect us. Across the UK and Australia, PentenAmio combines a legacy of knowledge and proven delivery across secure mobility and AI-driven deception technologies. Our work spans Government and Defence markets across civil and military applications, powering intelligent advantage on a global scale. Typical Activities Working in collaboration with internal stakeholders across Engineering, Product, and Technical Leadership, the Embedded Software Engineer will design, develop and deliver robust embedded software...
Contract Spy
Dec 23, 2025
Duration not stated
Frontend Engineer at Gendo, London, £400-£650 per day
£400 - £650 per day
Contract Spy London, UK
About Gendo Gendo is a revolutionary, browser-based AI platform designed to empower architects and designers to generate accurate, high-quality visual representations of their designs in seconds, not days - a huge improvement on existing workflows. Within just 12 months of launching, we have 62,000+ architects and designers using Gendo to produce visualizations 100x faster than traditional workflows. We pride ourselves on being a lean, focussed and efficient team formed of highly talented individuals. This, and our product driven mantra, led to us securing both substantial pre-seed-stage and seed-stage funding from renowned investors within the space, enabling us to expand our team and deliver on our ambitious vision. What we value At Gendo, design is our core mission. We believe in the power of tools to elevate creative expression and push the boundaries of architectural possibility. We don't build in a vacuum. We have refined our technology in direct...
Contract Spy
Dec 18, 2025
6 Months or more
Embedded Software Engineer at PentenAmio UK, Tewkesbury, 6 Months, £300-£650 per day
£300 - £650 per day
Contract Spy Tewkesbury GL20, UK
Location: Tewkesbury (Hybrid) Work Type: Contract (6 month) Salary: £300 - £650 PD (Inside IR35) Clearance Required: SC About PentenAmio PentenAmio is a leading provider of advanced digital security solutions that power national security and resilience across the UK, Australia and our allies. Focused on solving complex digital challenges that others avoid, we embrace the impossible to deliver transformative technologies that protect those who protect us. Across the UK and Australia, PentenAmio combines a legacy of knowledge and proven delivery across secure mobility and AI-driven deception technologies. Our work spans Government and Defence markets across civil and military applications, powering intelligent advantage on a global scale. Typical Activities Working in collaboration with internal stakeholders across Engineering, Product, and Technical Leadership, the Embedded Software Engineer will design, develop and deliver robust embedded software...
Contract Spy
Dec 16, 2025
Duration not stated
Frontend Engineer at Gendo, London, £400-£650 per day
£400 - £650 per day
Contract Spy London, UK
About Gendo Gendo is a revolutionary, browser-based AI platform designed to empower architects and designers to generate accurate, high-quality visual representations of their designs in seconds, not days - a huge improvement on existing workflows. Within just 12 months of launching, we have 62,000+ architects and designers using Gendo to produce visualizations 100x faster than traditional workflows. We pride ourselves on being a lean, focussed and efficient team formed of highly talented individuals. This, and our product driven mantra, led to us securing both substantial pre-seed-stage and seed-stage funding from renowned investors within the space, enabling us to expand our team and deliver on our ambitious vision. What we value At Gendo, design is our core mission. We believe in the power of tools to elevate creative expression and push the boundaries of architectural possibility. We don't build in a vacuum. We have refined our technology in direct...
Contract Spy
Jan 09, 2026
Duration not stated
AWS DevOps Engineer at Scrumconnect Consulting, London EC1A, £400-£500 per day (Outside IR35)
£400 - £500 per day
Contract Spy London EC1A, UK
  400 - 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   Preferred Tech Stack Expertise Cloud Infrastructure : AWS (EKS, RDS, Aurora, ElastiCache, Kafka, IAM) Secure Hosting : Experience working with air-gapped or government-secure environments Container & Cluster Management : Docker, Kubernetes, Rancher, Jenkins, Helm Monitoring &...
Contract Spy
Jan 08, 2026
6 Months or more
Senior Product Developer at Advania UK, Manchester, 6 Months, £450-£500 per day
£450 - £500 per day
Contract Spy Manchester, UK
6 Month Contract London or Manchester We are seeking a highly skilled Senior Product Develope r to join our team and play a key role in building and enhancing our Intranet Product. This position requires deep expertise in SharePoint development and integration, combined with strong proficiency in modern web technologies and cloud services. This role sits within our award-winning Fresh team, which creates beautiful, personalised intranets that empower people to do their best work. You can find out more about our Fresh business here About Fresh Fresh Intranet Recent MSP winners of the UK MSP of the year at 2025 MSP Channel Awards Join an award-winning Microsoft partner and leading technology provider for mid-market businesses. Read more about our Microsoft Designations and Awards here we are also one of the first to achieve the newly launched Microsoft Support Services Designation   Salary & Benefits The budgeted salary for this role...
Contract Spy
Jan 08, 2026
up to 6 Months
Senior Product Designer at Reapit Ltd, London/Remote, 5 Months, £500 per day (Outside IR35)
£500 per day
Contract Spy Hybrid (London, UK)
Reapit - Who are we? Reapit is the original, end-to-end business technology provider for estate agencies of all sizes. We've been helping sales and lettings agents to build relationships and grow their businesses for more than 25 years. Our technology connects property professionals in Europe, the Middle East, Australia, and New Zealand with buyers, sellers, tenants and landlords to power the relationships that change lives. In the United Kingdom and Ireland, Reapit's market-leading technology product suite provides estate and lettings agents with powerful tools covering sales, lettings, property management, block management, client accounts and analytics, underpinned by a robust, security infrastructure. What you'll be doing Reporting to the Global Director of Product Design, you'll be leading design for both an existing project building a responsive CRM product as well as a new consumer-facing product for owners and tenants. You'll be expected to: Conceive,...
Contract Spy
Jan 08, 2026
up to 6 Months
Senior Product Designer at Reapit Ltd, Leeds/Remote, 5 Months, £500 per day (Outside IR35)
£500 per day
Contract Spy Hybrid (Leeds, UK)
Reapit - Who are we? Reapit is the original, end-to-end business technology provider for estate agencies of all sizes. We've been helping sales and lettings agents to build relationships and grow their businesses for more than 25 years. Our technology connects property professionals in Europe, the Middle East, Australia, and New Zealand with buyers, sellers, tenants and landlords to power the relationships that change lives. In the United Kingdom and Ireland, Reapit's market-leading technology product suite provides estate and lettings agents with powerful tools covering sales, lettings, property management, block management, client accounts and analytics, underpinned by a robust, security infrastructure. What you'll be doing Reporting to the Global Director of Product Design, you'll be leading design for both an existing project building a responsive CRM product as well as a new consumer-facing product for owners and tenants. You'll be expected to: Conceive,...
Contract Spy
Jan 08, 2026
6 Months or more
Senior Product Developer at Advania UK, London, 6 Months, £450-£500 per day
£450 - £500 per day
Contract Spy London Wall, City of London, London EC2M 7AD, UK
6 Month Contract London or Manchester We are seeking a highly skilled Senior Product Develope r to join our team and play a key role in building and enhancing our Intranet Product. This position requires deep expertise in SharePoint development and integration, combined with strong proficiency in modern web technologies and cloud services. This role sits within our award-winning Fresh team, which creates beautiful, personalised intranets that empower people to do their best work. You can find out more about our Fresh business here About Fresh Fresh Intranet Recent MSP winners of the UK MSP of the year at 2025 MSP Channel Awards Join an award-winning Microsoft partner and leading technology provider for mid-market businesses. Read more about our Microsoft Designations and Awards here we are also one of the first to achieve the newly launched Microsoft Support Services Designation   Salary & Benefits The budgeted salary for this role...
Contract Spy
Jan 08, 2026
Duration not stated
DV Application Support Engineer at TwinStream, Cheltenham, £500-£600 per day (Outside IR35)
£500 - £600 per day
Contract Spy Cheltenham, UK
Who are we: In 2019, our founders were working as engineers solving complex cross domain problems within government organisations TwinStream was formed to consolidate their collective expertise and experience into one business, providing technical excellence and exceptional service to their clients. We have teams working both on-site with clients and remotely from home.   Details : Employment: Contract (outside of IR35) Rate: £500 - £600 Security Level: Must have live DV- clearance Location: 5 days in either Cheltenham   About the role: Successful candidates will be working as part of an on-site team to maintain and support a managed cross-domain service using a wide range of technology, platforms and tools. The team employ site reliability engineering tools and practices to continuously verify and improve the service.   Responsibilities: Build and Deploy code from multiple project teams:...
Contract Spy
Jan 08, 2026
up to 6 Months
Senior .Net Engineer at AND Digital, Leeds, 3 Months, £430-£530 per day
£430 - £530 per day
Contract Spy Leeds, UK
Contract Senior .Net Engineer for a 3 month contract initially £430-530 per day depending on experience. 1 day a week required on site in Leeds, with flexibility to be 2 days per week. Who We Are: AND Digital are a tech company focused on accelerating digital delivery and dedicated to closing the digital skills gap. We’ve been helping organisations build better digital products and stronger digital teams since 2014. We believe our work should always leave a legacy for the client. We do this through close relationships with our offices (or ‘Clubs’) so that our partners are always prioritised by a regional team close to them. This unique model has driven success for our clients and ourselves, evidenced by our remarkable organic growth since 2014. Today we number more than 1,300 people with Clubs all over the UK and Europe with plans for global expansion in the next couple of years. Join us - and help us fulfil our mission to close the world’s...
Contract Spy
Jan 07, 2026
Duration not stated
Site Reliability Engineer at TwinStream, Hereford/Remote, £500-£600 per day
£500 - £600 per day
Contract Spy Hybrid (Hereford, UK)
Who are we: In 2019, our founders were working as engineers solving complex cross domain problems within government organisations TwinStream was formed to consolidate their collective expertise and experience into one business, providing technical excellence and exceptional service to their clients. We have teams working both on-site with clients and remotely from home.   Day Rate: £500 - £600 Location: Hybrid working near Hereford with possible 24/7 call out when on rota Security Clearance: Must be eligible for DV Clearance   About the role: Our cross-domain services are used within government organisations. The demand for these services continues to grow in both scope and scale. We are seeking an experienced Site Reliability Engineer to help satisfy that demand. As an SRE, you will be responsible for ensuring the availability, performance and cost effectiveness of these services. You will be working with multiple...
Contract Spy
Jan 07, 2026
Duration not stated
Data Engineer – SC Cleared at Scrumconnect Consulting, London EC1A, £350-£400 per day
£350 - £400 per day
Contract Spy London EC1A, UK
350 - 400 GBP per day 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 more than 40 million UK citizens . We are committed to user-centred design, agile delivery, and bringing innovation to digital services that truly matter. Role Overview We are seeking an experienced Data Engineer to design, build, and maintain data products and a modern Strategic Data Platform . You will work within multi-functional Agile delivery teams, ensuring operational stability, support, and continuous enhancement of data solutions. This role is ideal for someone with strong Azure engineering experience, excellent SQL/Python...
Contract Spy
Jan 05, 2026
Duration not stated
Senior Solidity Engineer at Test Yantra Software Solutions Private Limited, London, £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 instruments and systems. Bonus...
Contract Spy
Jan 02, 2026
Duration not stated
Senior Analytics Engineer (SC Cleared) at Scrumconnect Consulting, London, £350-£400 per day (Outside IR35)
£350 - £400 per day
Contract Spy London, UK
350 - 400 Outside IR35 City London Province Greater London Country United Kingdom Postal Code EC1A Job Description   This is a hybrid role requiring travel once per fortnight to the Staines office and once per fortnight to London , aligned with client and team collaboration needs.   About Scrumconnect Consulting Scrumconnect Consulting is a digital and data consultancy delivering high‑quality technology, analytics, and transformation services to public and private sector clients. We work closely with government departments and complex organisations to design and deliver scalable, ethical, and impactful data solutions.   Role Overview As a Senior Analytics Engineer , you will play a critical role in designing, building, and maintaining high‑quality data models that enable analytics, reporting, and data‑driven decision‑making. You will work closely with...
Contract Spy
Jan 02, 2026
Duration not stated
AWS DevOps Engineer at Scrumconnect Consulting, London EC1A, £400-£500 per day (Outside IR35)
£400 - £500 per day
Contract Spy London EC1A, UK
400 - 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   Preferred Tech Stack Expertise Cloud Infrastructure : AWS (EKS, RDS, Aurora, ElastiCache, Kafka, IAM) Secure Hosting : Experience working with air-gapped or government-secure environments Container & Cluster Management : Docker, Kubernetes, Rancher, Jenkins, Helm Monitoring & Observability :...
Contract Spy
Dec 31, 2025
Duration not stated
DV Application Support Engineer at TwinStream, Cheltenham, £500-£600 per day (Outside IR35)
£500 - £600 per day
Contract Spy Cheltenham, UK
Who are we: In 2019, our founders were working as engineers solving complex cross domain problems within government organisations TwinStream was formed to consolidate their collective expertise and experience into one business, providing technical excellence and exceptional service to their clients. We have teams working both on-site with clients and remotely from home.   Details : Employment: Contract (outside of IR35) Rate: £500 - £600 Security Level: Must have live DV- clearance Location: 5 days in either Cheltenham   About the role: Successful candidates will be working as part of an on-site team to maintain and support a managed cross-domain service using a wide range of technology, platforms and tools. The team employ site reliability engineering tools and practices to continuously verify and improve the service.   Responsibilities: Build and Deploy code from multiple project teams:...
Contract Spy
Dec 31, 2025
up to 6 Months
Senior .Net Engineer at AND Digital, Leeds, 3 Months, £430-£530 per day
£430 - £530 per day
Contract Spy Leeds, UK
Contract Senior .Net Engineer for a 3 month contract initially £430-530 per day depending on experience. 1 day a week required on site in Leeds, with flexibility to be 2 days per week. Who We Are: AND Digital are a tech company focused on accelerating digital delivery and dedicated to closing the digital skills gap. We’ve been helping organisations build better digital products and stronger digital teams since 2014. We believe our work should always leave a legacy for the client. We do this through close relationships with our offices (or ‘Clubs’) so that our partners are always prioritised by a regional team close to them. This unique model has driven success for our clients and ourselves, evidenced by our remarkable organic growth since 2014. Today we number more than 1,300 people with Clubs all over the UK and Europe with plans for global expansion in the next couple of years. Join us - and help us fulfil our mission to close the world’s...
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