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1 Contract API job in Colchester + 10 miles

Just Recruitment is working with a growing, well established and market leading organisation, based on the outskirts of Colchester - they are looking to add a Wordpress/React Developer to their existing team, on a 12 month fixed term contract basis. The key purpose of the role is to assist with new projects, as well as working on the maintenance and development of existing projects. You will work closely with the wider business team on all projects. You must have the ability to accurately code design layouts. The end result should be pixel-perfect, accessible, responsive, secure, and performant. As a WordPress developer, you will be expected to develop WordPress sites using our internal starter theme. Knowledge in creating WordPress based websites. Exposure to server-side JavaScript, APIs - Proficiency in modern JavaScript features (ES6+) Strong Experience in HTML and
Just Recruitment is working with a growing, well established and market leading organisation, based on the outskirts of Colchester - they are looking to add a Wordpress/React Developer to their existing team, on a 12 month fixed term contract basis. The key purpose of the role is to assist with new projects, as well as working on the maintenance and development of existing projects. You will work closely with the wider business team on all projects. You must have the ability to accurately code design layouts. The end result should be pixel-perfect, accessible, responsive, secure, and performant. As a WordPress developer, you will be expected to develop WordPress sites using our internal starter theme. Knowledge in creating WordPress based websites. Exposure to server-side JavaScript, APIs - Proficiency in modern JavaScript features (ES6+) Strong Experience in HTML and
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154 exact matches jobs are outside your preferred location

API testing (RestAssured or similar) The successful applicant will have strong Playwright/JavaScript knowledge, strong experience of API testing, have written automated performance tests, be comfortable working with AWS services and experience using monitoring tools * be experienced with API testing (RestAssured and Java knowledge would be beneficial)
API testing (RestAssured or similar) The successful applicant will have strong Playwright/JavaScript knowledge, strong experience of API testing, have written automated performance tests, be comfortable working with AWS services and experience using monitoring tools * be experienced with API testing (RestAssured and Java knowledge would be beneficial)
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NEW

Automation Engineer - Banking

Essential Consulting
EC1, City of London
Unspecified Competitive Daily Rate (inside IR35)
Experience of converting vendor API's into useable/easy to consume offerings delivered via a third party platform
Experience of converting vendor API's into useable/easy to consume offerings delivered via a third party platform
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NEW
You will be working on a standard API layer wrapping 3rd party services (i.e Intercom and Gong) specifically to standardise the interface for cadencing/marketing/enrolment/email sequencing.
You will be working on a standard API layer wrapping 3rd party services (i.e Intercom and Gong) specifically to standardise the interface for cadencing/marketing/enrolment/email sequencing.
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FEATUREDNEW
Role Title: Appian Developer - Location: London - Duration: 30/11/2025 - Via Umbrella Company - We are seeking a skilled and motivated Appian Developer to join our dynamic team. The ideal candidate will be responsible for designing, developing, and implementing business process management (BPM) solutions using the Appian platform. You will work closely with business analysts, stakeholders, and other developers to deliver scalable and efficient applications that meet business requirements. Design and develop BPM applications using Appian. Collaborate with cross-functional teams to gather and analyse requirements. Build and maintain Appian objects such as records, reports, interfaces, and process models. Integrate Appian applications with external systems using APIs and web services. Participate in code reviews, testing, and deployment activities.
Role Title: Appian Developer - Location: London - Duration: 30/11/2025 - Via Umbrella Company - We are seeking a skilled and motivated Appian Developer to join our dynamic team. The ideal candidate will be responsible for designing, developing, and implementing business process management (BPM) solutions using the Appian platform. You will work closely with business analysts, stakeholders, and other developers to deliver scalable and efficient applications that meet business requirements. Design and develop BPM applications using Appian. Collaborate with cross-functional teams to gather and analyse requirements. Build and maintain Appian objects such as records, reports, interfaces, and process models. Integrate Appian applications with external systems using APIs and web services. Participate in code reviews, testing, and deployment activities.
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PREMIUMNEW

Software Engineer - SC Cleared

Stott & May Professional Search Limited
London
Up to £0.00 per day
Hybrid - 2 Days a Week London We're looking for a Software Engineer with strong skills in Node.js, React, and TypeScript to build scalable web applications. You'll work across the stack, using Docker, Azure Web Apps, and ElasticSearch. Develop full-stack applications with Node.js, React, and TypeScript Build and maintain RESTful APIs and responsive UIs Containerize and deploy apps using Docker and Azure Web Apps Implement and optimize search with ElasticSearch Collaborate with product and DevOps teams Write clean, testable code and participate in code reviews Solid experience with Node.js, React, and TypeScript Familiarity with Docker, Azure Web Apps, and ElasticSearch Good understanding of REST APIs and modern frontend tools Comfortable with Git workflows and agile development Strong communication and problem-solving skills
Hybrid - 2 Days a Week London We're looking for a Software Engineer with strong skills in Node.js, React, and TypeScript to build scalable web applications. You'll work across the stack, using Docker, Azure Web Apps, and ElasticSearch. Develop full-stack applications with Node.js, React, and TypeScript Build and maintain RESTful APIs and responsive UIs Containerize and deploy apps using Docker and Azure Web Apps Implement and optimize search with ElasticSearch Collaborate with product and DevOps teams Write clean, testable code and participate in code reviews Solid experience with Node.js, React, and TypeScript Familiarity with Docker, Azure Web Apps, and ElasticSearch Good understanding of REST APIs and modern frontend tools Comfortable with Git workflows and agile development Strong communication and problem-solving skills
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NEW

Head Of Infrastructure Architecture

Magnus Partners Talent Solutions
London
Competitive day rate (or equivalent)
About the Company - A dynamic London-based fintech startup is revolutionising financial services through cutting-edge technology. Their mission is to deliver secure, scalable, and innovative solutions that empower users in a rapidly evolving digital landscape. Join a forward-thinking team to build a next-generation platform that redefines how financial systems operate, driven by innovation, collaboration, and excellence. Role Overview - As the Technical Lead for Infrastructure & Architecture, youll spearhead the development of a transformative financial platform, reporting directly to the CEO. Leading a compact team of two developers, youll design and deliver a robust, secure architecture that sets new industry standards. This hands-on role demands deep expertise in full-stack development, blockchain technologies, and a relentless drive to innovate.
About the Company - A dynamic London-based fintech startup is revolutionising financial services through cutting-edge technology. Their mission is to deliver secure, scalable, and innovative solutions that empower users in a rapidly evolving digital landscape. Join a forward-thinking team to build a next-generation platform that redefines how financial systems operate, driven by innovation, collaboration, and excellence. Role Overview - As the Technical Lead for Infrastructure & Architecture, youll spearhead the development of a transformative financial platform, reporting directly to the CEO. Leading a compact team of two developers, youll design and deliver a robust, secure architecture that sets new industry standards. This hands-on role demands deep expertise in full-stack development, blockchain technologies, and a relentless drive to innovate.
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Role: Cyber Security Engineer - Salary/Rate: up to £700 per day (inside IR35) Location: Hybrid London - Contract Duration: until October 2025 - We are currently looking for a Cyber Security Engineer for our government client. This Cyber Security Engineer role is hybrid, based between 2-3 days per week on site in central London and the remainder of the week working remotely. The contract for the Cyber Security Engineer position is until October 2025 with potential to extend, operating inside IR35. Security Clearance: Security Check ('SC Clearance') This role is inside IR35 - Due to the service of the role, it will now be based on an Umbrella solution. * Experience penetration testing, ethical hacking, or completing vulnerability assessments. * Security testing tools (e.g., Burp Suite, OWASP ZAP, Nikto, Nmap, Metasploit, etc.).
Role: Cyber Security Engineer - Salary/Rate: up to £700 per day (inside IR35) Location: Hybrid London - Contract Duration: until October 2025 - We are currently looking for a Cyber Security Engineer for our government client. This Cyber Security Engineer role is hybrid, based between 2-3 days per week on site in central London and the remainder of the week working remotely. The contract for the Cyber Security Engineer position is until October 2025 with potential to extend, operating inside IR35. Security Clearance: Security Check ('SC Clearance') This role is inside IR35 - Due to the service of the role, it will now be based on an Umbrella solution. * Experience penetration testing, ethical hacking, or completing vulnerability assessments. * Security testing tools (e.g., Burp Suite, OWASP ZAP, Nikto, Nmap, Metasploit, etc.).
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NEW

D365 CE Developer

La Fosse
London
£600 - 650 per day + Outside IR35
Job Title: D365 CE Developer (Contract) Location: Central London (Hybrid – 3 days onsite per week) Contract Duration: 3 Months - Outside IR35 - We are seeking an experienced Dynamics 365 Customer Engagement (CE) Developer for a 3-month contract. The ideal candidate will have strong experience in data migration and system integration within the D365 CE environment. This hybrid role requires 3 days per week onsite in Central London. * Develop and customise solutions in Dynamics 365 CE * Lead and support data migration activities * Integrate D365 CE with external systems using APIs and middleware * Collaborate with business and technical teams to ensure seamless delivery * Proven experience as a D365 CE Developer * Strong skills in data migration and integration * Hands-on experience with Power Platform, JavaScript, plug-ins, and workflows
Job Title: D365 CE Developer (Contract) Location: Central London (Hybrid – 3 days onsite per week) Contract Duration: 3 Months - Outside IR35 - We are seeking an experienced Dynamics 365 Customer Engagement (CE) Developer for a 3-month contract. The ideal candidate will have strong experience in data migration and system integration within the D365 CE environment. This hybrid role requires 3 days per week onsite in Central London. * Develop and customise solutions in Dynamics 365 CE * Lead and support data migration activities * Integrate D365 CE with external systems using APIs and middleware * Collaborate with business and technical teams to ensure seamless delivery * Proven experience as a D365 CE Developer * Strong skills in data migration and integration * Hands-on experience with Power Platform, JavaScript, plug-ins, and workflows
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FEATUREDNEW

Automation Developer

Networking People (UK) Limited
London
£550 - £600 per day + Deemed Inside IR35 via Umbrella solution
Contract: Automation Python Developer - Start Date: ASAP - Duration: 6 months - Location: Remote working (possible occasional travel to London site) Rate: £550 - 600 a day (Deemed Inside IR35 via umbrella solution) We are urgently seeking an experienced Automation Developer (With Python and Jinja2 expertise) to join a major financial services organisation on a business-critical infrastructure modernisation and automation programme. This is a fantastic opportunity to play a key role in delivering cutting-edge automation solutions within a dynamic and forward-thinking environment. * Assist with migrating multi-tenanted network services onto a new platform. * Drive improvements in the UAT process through automation. * Build automation capabilities for infrastructure testing. * Develop and enhance reusable infrastructure automation patterns to support a holistic automatio
Contract: Automation Python Developer - Start Date: ASAP - Duration: 6 months - Location: Remote working (possible occasional travel to London site) Rate: £550 - 600 a day (Deemed Inside IR35 via umbrella solution) We are urgently seeking an experienced Automation Developer (With Python and Jinja2 expertise) to join a major financial services organisation on a business-critical infrastructure modernisation and automation programme. This is a fantastic opportunity to play a key role in delivering cutting-edge automation solutions within a dynamic and forward-thinking environment. * Assist with migrating multi-tenanted network services onto a new platform. * Drive improvements in the UAT process through automation. * Build automation capabilities for infrastructure testing. * Develop and enhance reusable infrastructure automation patterns to support a holistic automatio
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NEW
A global Tech Company requires a Contract hands on Technical OneTrust SME to support the design, configuration, and integration of OneTrust’s Data Privacy Management suite—particularly focused on DSAR automation, API-based integrations, and data redaction workflows. * Set up API integrations between OneTrust and third-party systems such as Slack, Gmail, Microsoft 365, ServiceNow, or internal databases
A global Tech Company requires a Contract hands on Technical OneTrust SME to support the design, configuration, and integration of OneTrust’s Data Privacy Management suite—particularly focused on DSAR automation, API-based integrations, and data redaction workflows. * Set up API integrations between OneTrust and third-party systems such as Slack, Gmail, Microsoft 365, ServiceNow, or internal databases
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FEATUREDNEW

Mulesoft Developer

Hexaware Technologies UK Ltd
London
Unspecified
Job Description Designing, developing, and testing integration solutions using the Mulesoft Anypoint Platform. This includes creating and managing APIs, working with various integration patterns, and collaborating with other teams to ensure seamless data flow and application connectivity.
Job Description Designing, developing, and testing integration solutions using the Mulesoft Anypoint Platform. This includes creating and managing APIs, working with various integration patterns, and collaborating with other teams to ensure seamless data flow and application connectivity.
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Draft new API extensions and write specifications.- Prototype interface changes and proposals. * Hands-on experience with one or more of the following API's: Vulkan, OpenGL ES, Metal, DirectX11 or DirectX12.
Draft new API extensions and write specifications.- Prototype interface changes and proposals. * Hands-on experience with one or more of the following API's: Vulkan, OpenGL ES, Metal, DirectX11 or DirectX12.
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The ideal candidate will have hands-on experience with Playwright or Cypress and a solid understanding of API testing as well as a keen eye for detail. * API Tools: Java, Rest-assured, maven, JUnit, Allure * You can analyse, design and implement automated test cases for API endpoints to ensure that requirements are met, industry standards are upheld, and documentation is correct. * You have some experience designing, implementing and executing API performance and load tests. * We use gatling to drive our API tests and monitor key application metrics from these in addition to built-in response time reports.
The ideal candidate will have hands-on experience with Playwright or Cypress and a solid understanding of API testing as well as a keen eye for detail. * API Tools: Java, Rest-assured, maven, JUnit, Allure * You can analyse, design and implement automated test cases for API endpoints to ensure that requirements are met, industry standards are upheld, and documentation is correct. * You have some experience designing, implementing and executing API performance and load tests. * We use gatling to drive our API tests and monitor key application metrics from these in addition to built-in response time reports.
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The ideal candidate will have hands-on experience with Playwright or Cypress and a solid understanding of API testing as well as a keen eye for detail. * API Tools: Java, Rest-assured, maven, JUnit, Allure * You can analyse, design and implement automated test cases for API endpoints to ensure that requirements are met, industry standards are upheld, and documentation is correct. * You have some experience designing, implementing and executing API performance and load tests. * We use gatling to drive our API tests and monitor key application metrics from these in addition to built-in response time reports.
The ideal candidate will have hands-on experience with Playwright or Cypress and a solid understanding of API testing as well as a keen eye for detail. * API Tools: Java, Rest-assured, maven, JUnit, Allure * You can analyse, design and implement automated test cases for API endpoints to ensure that requirements are met, industry standards are upheld, and documentation is correct. * You have some experience designing, implementing and executing API performance and load tests. * We use gatling to drive our API tests and monitor key application metrics from these in addition to built-in response time reports.
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6 months - London - hybrid x2 day onsite x3 remote - Active SC cleared or eligible candidates will be considered - Inside ir35 - umbrella only - This is an ideal role for an architect who is looking for a new challenge to help implement data strategy across a complex programme which is at the heart of the core UK Brexit capability. The ideal candidate will be responsible for designing, implementing, and maintaining our Dynatrace-based monitoring and observability solution, ensuring optimal performance, scalability, and reliability of our enterprise applications and infrastructure. The candidate will be working in a multi-supplier team and will be responsible for leading team members. Essential skills and experience * Dynatrace is MANDATORY "Application Architect with experience of working in a distributed enterprise landscape.
6 months - London - hybrid x2 day onsite x3 remote - Active SC cleared or eligible candidates will be considered - Inside ir35 - umbrella only - This is an ideal role for an architect who is looking for a new challenge to help implement data strategy across a complex programme which is at the heart of the core UK Brexit capability. The ideal candidate will be responsible for designing, implementing, and maintaining our Dynatrace-based monitoring and observability solution, ensuring optimal performance, scalability, and reliability of our enterprise applications and infrastructure. The candidate will be working in a multi-supplier team and will be responsible for leading team members. Essential skills and experience * Dynatrace is MANDATORY "Application Architect with experience of working in a distributed enterprise landscape.
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FEATUREDNEW

Dynatrace Architect

LA International Computer Consultants Ltd
Lambeth, SE1 7ND
£500 - £600 per day
Be aware they maybe needed onsite 2/3 days a week - London - This is an ideal role for an architect who is looking for a new challenge to help implement data strategy across a complex programme which is at the heart of the core UK Brexit capability. The ideal candidate will be responsible for designing, implementing, and maintaining our Dynatrace-based monitoring and observability solution, ensuring optimal performance, scalability, and reliability of our enterprise applications and infrastructure. The candidate will be working in a multi-supplier team and will be responsible for leading team members - Dynatrace is MANDATORY 'Application Architect with experience of working in a distributed enterprise landscape. Some experience of broad spectrum integration patterns, web services, xml, wsdl, json/REST, APIs, batch workloads.
Be aware they maybe needed onsite 2/3 days a week - London - This is an ideal role for an architect who is looking for a new challenge to help implement data strategy across a complex programme which is at the heart of the core UK Brexit capability. The ideal candidate will be responsible for designing, implementing, and maintaining our Dynatrace-based monitoring and observability solution, ensuring optimal performance, scalability, and reliability of our enterprise applications and infrastructure. The candidate will be working in a multi-supplier team and will be responsible for leading team members - Dynatrace is MANDATORY 'Application Architect with experience of working in a distributed enterprise landscape. Some experience of broad spectrum integration patterns, web services, xml, wsdl, json/REST, APIs, batch workloads.
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NEW

Magento Developer

WHD Consulting Ltd
London
From £450 to £520 per day
My client is looking for a talentedMagento Developerwith strong backend experience to join their dynamic dev team. If you enjoy building custom ecommerce solutions, integrating complex systems, and collaborating in a supportive tech environment, this could be the role for you. This role is predominately remote, although the team meet up onsite once a month near Farringdon. There is no specific requirement to attend every month, however some flexibility would be beneficial. The Role - Youll be responsible for delivering tailored features and functionality across a variety of ecommerce projects. * Developing and maintaining bespoke Magento functionality. * Working with the development team to ensure new code aligns with the Magento framework and delivers great performance. * Reviewing code, pull requests, and supporting peer development.
My client is looking for a talentedMagento Developerwith strong backend experience to join their dynamic dev team. If you enjoy building custom ecommerce solutions, integrating complex systems, and collaborating in a supportive tech environment, this could be the role for you. This role is predominately remote, although the team meet up onsite once a month near Farringdon. There is no specific requirement to attend every month, however some flexibility would be beneficial. The Role - Youll be responsible for delivering tailored features and functionality across a variety of ecommerce projects. * Developing and maintaining bespoke Magento functionality. * Working with the development team to ensure new code aligns with the Magento framework and delivers great performance. * Reviewing code, pull requests, and supporting peer development.
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Cardiff Based - Hybrid Working - A large financial organisation is seeking a diligent Business Test Analyst to support the development of business test strategies and test plans. This role involves collaborating with various stakeholders to ensure the delivery of high-quality testing outcomes that align with business requirements. Responsibilities * Contribute to and support the development of business test strategies and test plans across multiple markets. * Demonstrate strong capabilities in functional and business acceptance testing while collaborating effectively with business stakeholders. * Translate business requirements and operational workflows into test scenarios and relevant test cases. * Define, document, and maintain business test scenarios and test cases in collaboration with business stakeholders, analysts, and product teams.
Cardiff Based - Hybrid Working - A large financial organisation is seeking a diligent Business Test Analyst to support the development of business test strategies and test plans. This role involves collaborating with various stakeholders to ensure the delivery of high-quality testing outcomes that align with business requirements. Responsibilities * Contribute to and support the development of business test strategies and test plans across multiple markets. * Demonstrate strong capabilities in functional and business acceptance testing while collaborating effectively with business stakeholders. * Translate business requirements and operational workflows into test scenarios and relevant test cases. * Define, document, and maintain business test scenarios and test cases in collaboration with business stakeholders, analysts, and product teams.
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PREMIUMNEW
Contract .NET Developer - £500-550pd .NET | Azure | C# | SQL | Insurance - Location:Central London 2 days pw - Senior .NET Engineer required by our established Insurance client, to work on their market-leading product utilizing the .NET stack. Recognized as a leading InsureTech, you will be working in a growing technology team renowned for its high-performance engineering environment. * Backend software development experience, with expertise in C#, .NET, SQL and Azure. * Proficient in designing and developing APIs with a focus on performance, scalability, and security. * Extensive experience in cloud environments (preferably MS Azure), specializing in microservices and serverless architecture. * Familiarity with JavaScript and/or TypeScript and ReactJS. * Proficiency in agile methodologies and cross-team collaboration.
Contract .NET Developer - £500-550pd .NET | Azure | C# | SQL | Insurance - Location:Central London 2 days pw - Senior .NET Engineer required by our established Insurance client, to work on their market-leading product utilizing the .NET stack. Recognized as a leading InsureTech, you will be working in a growing technology team renowned for its high-performance engineering environment. * Backend software development experience, with expertise in C#, .NET, SQL and Azure. * Proficient in designing and developing APIs with a focus on performance, scalability, and security. * Extensive experience in cloud environments (preferably MS Azure), specializing in microservices and serverless architecture. * Familiarity with JavaScript and/or TypeScript and ReactJS. * Proficiency in agile methodologies and cross-team collaboration.
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La Fosse are currently partnered with a customer who are looking to recruit a Cloud and Infrastructure Engineer into their team, on an initial 6 month contract, with a view to extend to 12 months. This role is outside IR35, paying £500 per day and will be 50/50 between office and home working. The office location for this role is Central London. We are looking for a highly motivated Cloud Infrastructure Engineer to build and manage our cloud estate. As the Cloud Infrastructure Engineer you will work alongside our developers, data engineers and 3rd party vendors to build and design both internally built workloads and off the shelf solutions in a resilient and reliable manner. You will also be providing both reactive and pro-active operational support of the environment. * Extensive hands-on cloud infrastructure management including backups, disaster recovery, specifica
La Fosse are currently partnered with a customer who are looking to recruit a Cloud and Infrastructure Engineer into their team, on an initial 6 month contract, with a view to extend to 12 months. This role is outside IR35, paying £500 per day and will be 50/50 between office and home working. The office location for this role is Central London. We are looking for a highly motivated Cloud Infrastructure Engineer to build and manage our cloud estate. As the Cloud Infrastructure Engineer you will work alongside our developers, data engineers and 3rd party vendors to build and design both internally built workloads and off the shelf solutions in a resilient and reliable manner. You will also be providing both reactive and pro-active operational support of the environment. * Extensive hands-on cloud infrastructure management including backups, disaster recovery, specifica
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FEATUREDNEW

Cyber Security Engineer - DevSecOp

SUMMER-BROWNING ASSOCIATES LIMITED
London
Up to £0.00 per day + Excellent Day Rates
Summer-Browning Associates is currently assisting our client in the Public Sector, who is looking for a Cyber Security Engineering for an initial six-month assignment. Location: Hybrid working - London * Experience in penetration testing and vulnerability assessments of web applications, APIs, and cloud infrastructure. * Experience in integrating automated security tools into CI/CD pipelines (SAST, DAST, dependency checking, IaC, etc.) and making necessary recommendations. * Proficiency in security testing tools such as Burp Suite, OWASP ZAP, Nikto, Nmap, Metasploit, etc. * Ability to identify vulnerabilities and ensure secure coding practices. * Experience in maintaining security assurance across the SDLC in line with NCSC guidelines. * Knowledge of DevSecOps principles and tools (e.g., Veracode, SonarQube, GitHub Advanced Security, IaC scanning, etc.).
Summer-Browning Associates is currently assisting our client in the Public Sector, who is looking for a Cyber Security Engineering for an initial six-month assignment. Location: Hybrid working - London * Experience in penetration testing and vulnerability assessments of web applications, APIs, and cloud infrastructure. * Experience in integrating automated security tools into CI/CD pipelines (SAST, DAST, dependency checking, IaC, etc.) and making necessary recommendations. * Proficiency in security testing tools such as Burp Suite, OWASP ZAP, Nikto, Nmap, Metasploit, etc. * Ability to identify vulnerabilities and ensure secure coding practices. * Experience in maintaining security assurance across the SDLC in line with NCSC guidelines. * Knowledge of DevSecOps principles and tools (e.g., Veracode, SonarQube, GitHub Advanced Security, IaC scanning, etc.).
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What is the average salary for API in Colchester?

Average salary per year
£42,499

The average salary for a API in Colchester is £42,499. API in Colchester salaries range from £30,000 to £47,499.

Frequently Asked Questions

How many contract API jobs are there in Colchester?
There are 1 contract API jobs within 10 miles of Colchester available on Totaljobs right now.
What other similar jobs are there to contract API jobs in Colchester?
As well as contract API jobs in Colchester, you can find contract Service, Game Developer, Hosting, amongst many others.