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16 security engineer jobs found

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Contract Spy
Jul 16, 2026
Duration not stated
Mobile Security Engineer at Derisk 360, London/Remote, £Contract Rate
Contract Spy Hybrid (London, UK)
We’re Hiring: Mobile Security Engineer Experience: 8+ Years Location: Bristol / London, UK (Hybrid – Onshore) Employment Type: Contract (Inside IR35) Company: Derisk360 Preferred: Immediate Joiners (0–15 Days Notice Period) Are you passionate about securing mobile applications and protecting enterprise platforms from emerging threats? Join Derisk360 as a Mobile Security Engineer and help strengthen the security posture of mobile applications through security assessments, threat modelling, and secure engineering practices. What You'll Do: Conduct regular reviews of mobile application security posture using hands-on security assessment techniques. Perform threat modelling and recommend appropriate mitigation strategies for mobile platforms. Develop and maintain penetration testing tools, scripts, security policies, and procedures. Assess and improve the security of Android and iOS applications. Collaborate with development...
Contract Spy
Jul 16, 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
Jul 14, 2026
Duration not stated
Lead Android Engineer – Mobile Platform (Kotlin/Android SDK) at UST, Leeds/Remote, £Contract Rate
Contract Spy Hybrid (Leeds, UK)
Role description Lead Android Engineer – Mobile Platform (Kotlin / Android SDK) Leeds (Hybrid – 2–3 days onsite) Start: ASAP Employment Type: Fixed Term Employment/ Contract Inside IR35   About the Role We are looking for a Lead Android Engineer to drive technical design and delivery across our mobile platform. This is a hands-on technical leadership role, where you will take ownership of Android architecture, lead proof-of-concept (POC) initiatives, and build high-performance, secure, and scalable mobile applications. You will work closely with engineering teams, product stakeholders, and architects to define best practices and deliver robust mobile solutions that support business-critical use cases.   What You’ll Be Doing Lead Android technical design and architecture, ensuring scalable and maintainable solutions Drive POC development and innovation initiatives, validating new...
Contract Spy
Jul 14, 2026
Duration not stated
Principal Data Engineer at UST, Nottingham/Remote, £Contract Rate
Contract Spy Hybrid (Nottingham, UK)
Role description Principal Data Engineer Nottingham/ London (Hybrid) Contract Inside IR35/ Permanent     About the Role As a Principal Data Engineer, you will combine deep technical expertise with engineering leadership to drive the design, development and evolution of our cloud-scale data platform. You will provide technical leadership across distributed data processing, data products, streaming architectures and data platform capabilities, while remaining hands-on with coding, design and engineering best practices. You will play a key role in shaping engineering standards, mentoring teams, influencing technical direction and delivering robust, scalable data solutions that enable our Engineers, Data Scientists, Analysts and Governance teams to unlock business value.     What You'll Do Lead the design, development and continuous evolution of cloud-scale data platforms and data products across batch and...
Contract Spy
Jul 14, 2026
Duration not stated
Principal Data Engineer at UST, London/Remote, £Contract Rate
Contract Spy Hybrid (London, UK)
Role description Principal Data Engineer Nottingham/ London (Hybrid) Contract Inside IR35/ Permanent     About the Role As a Principal Data Engineer, you will combine deep technical expertise with engineering leadership to drive the design, development and evolution of our cloud-scale data platform. You will provide technical leadership across distributed data processing, data products, streaming architectures and data platform capabilities, while remaining hands-on with coding, design and engineering best practices. You will play a key role in shaping engineering standards, mentoring teams, influencing technical direction and delivering robust, scalable data solutions that enable our Engineers, Data Scientists, Analysts and Governance teams to unlock business value.     What You'll Do Lead the design, development and continuous evolution of cloud-scale data platforms and data products across batch and...
Contract Spy
Jul 14, 2026
Duration not stated
Machine Learning/MLOps Engineer at UST, Nottingham/Remote, 6 Months, £Contract Rate
Contract Spy Hybrid (Nottingham, UK)
Machine Learning / MLOps Engineer Location:  Nottingham, UK (Hybrid) Employment Type:  6-Month Fixed-Term Contract / Contract Inside IR35 Start Date:  Immediate     We are seeking a Machine Learning / MLOps Engineer to help build, deploy, and support production-ready machine learning solutions on Azure and Databricks. Working closely with Data Scientists, Data Engineers, Platform Engineers, and business stakeholders, you will be responsible for operationalising ML models, building scalable data and ML pipelines, implementing monitoring, and supporting the end-to-end ML lifecycle. This role will initially span MLOps, data engineering, and platform activities while the capability continues to mature.     Key Responsibilities Deploy and operationalise machine learning models developed by Data Science teams. Build and maintain ML and data pipelines using Python, PySpark, SQL, Azure, and Databricks. Develop...
Contract Spy
Jul 13, 2026
Duration not stated
Lead Software Engineer (Java, AWS) at The Very Group, Liverpool/Remote, £Contract RAte
Contract Spy Hybrid (Liverpool, UK)
Lead Software Engineer (Java, AWS) - Contract Role - Inside IR35 Role Purpose We are looking for a Lead Software Engineer for an initial 6 Month Contract (Inside IR35) - this role will be onsite 2 days a week in our Speke HQ working in our FS squads. The Lead Engineer is a key role within a Software or Data Engineering sub-community providing technical leadership and guidance to Engineers across all squads working with them to deliver and maintain production ready, secure, stable, and performant code in line with TVG Engineering standards in a DevSecOps manner. They lead by example and play an active part of software design, coding, reviews, testing, and debugging. They are at the forefront of solving challenging technical problems, and are responsible for software engineering excellence, innovation, and continuous improvement within the sub-community across all squads they work with. Scope of Role Leadership: Technical mentor and coach to Software/Data...
Contract Spy
Jul 13, 2026
Duration not stated
Red Hat Systems Engineer at Xoriant, London Canary Wharf/Remote, £Contract Rate
Contract Spy Hybrid (Canary Wharf, London, UK)
Senior Red Hat Systems Engineer / Linux Engineering Lead Canary Wharf, UK Hybrid (2 days a week) Long Term Contract (Inside IR35)   Seasoned Senior Red Hat Systems Engineer with over 10 years of deep expertise in Red Hat Enterprise Linux (RHEL) , specializing in large-scale infrastructure design, automation, performance optimization, and enterprise platform engineering across on-prem (VMware) and cloud (AWS) environments. Recognized for combining advanced Linux engineering skills with strong leadership , driving operational excellence, mentoring teams, and delivering resilient, secure, and highly automated infrastructure solutions aligned with business and regulatory requirements.   Professional Summary Expert in end-to-end Linux lifecycle management , including patching, OS upgrades, image creation, and large-scale deployments. Extensive experience with Red Hat Satellite , Ansible Automation Platform , and enterprise...
Contract Spy
Jul 09, 2026
Duration not stated
Senior Software Tester at SRT Marine, Bristol/Remote, £Contractor Rate
Contract Spy Hybrid (Bristol, UK)
Location Bristol, Bristol, City of (Hybrid) Department SYSTEMS DEVELOPMENT Employment Type Contractor Minimum Experience Experienced SRT Marine Systems plc (SRT) is a market leader in the domain of international marine surveillance technology and systems. We are a respected, established, and an ambitious multi-national company headquartered in the UK with a global customer base.   The company has a worldwide impact in the marine sector by leading the next generation of Maritime Domain Awareness technologies “MDA”, products, and systems that significantly enhance security, safety, environmental protection, and sustainability. Our customers are global and range from the largest national coast guards to individual vessel owners.   SRT is an exciting company where high-quality results are rewarded. We are ambitious and constantly seek to innovate in...
Contract Spy
Jul 09, 2026
Duration not stated
Senior Software Tester at SRT Marine, Cardiff/Remote, £Contractor Rate
Contract Spy Hybrid (Cardiff, UK)
Location Cardiff (Hybrid) Department SYSTEMS DEVELOPMENT Employment Type Contractor Minimum Experience Experienced SRT Marine Systems plc (SRT) is a market leader in the domain of international marine surveillance technology and systems. We are a respected, established, and an ambitious multi-national company headquartered in the UK with a global customer base.   The company has a worldwide impact in the marine sector by leading the next generation of Maritime Domain Awareness technologies “MDA”, products, and systems that significantly enhance security, safety, environmental protection, and sustainability. Our customers are global and range from the largest national coast guards to individual vessel owners.   SRT is an exciting company where high-quality results are rewarded. We are ambitious and constantly seek to innovate in order to deliver...
Contract Spy
Jul 09, 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
Jul 07, 2026
Duration not stated
Principal Data Engineer at UST, Nottingham/Remote, £Contract Rate
Contract Spy Hybrid (Nottingham, UK)
Principal Data Engineer Nottingham/ London (Hybrid) Contract Inside IR35/ Permanent     About the Role As a Principal Data Engineer, you will combine deep technical expertise with engineering leadership to drive the design, development and evolution of our cloud-scale data platform. You will provide technical leadership across distributed data processing, data products, streaming architectures and data platform capabilities, while remaining hands-on with coding, design and engineering best practices. You will play a key role in shaping engineering standards, mentoring teams, influencing technical direction and delivering robust, scalable data solutions that enable our Engineers, Data Scientists, Analysts and Governance teams to unlock business value.     What You'll Do Lead the design, development and continuous evolution of cloud-scale data platforms and data products across batch and streaming workloads Act as...
Contract Spy
Jul 07, 2026
Duration not stated
Principal Data Engineer at UST, London/Remote, £Contract Rate
Contract Spy Hybrid (London, UK)
Principal Data Engineer Nottingham/ London (Hybrid) Contract Inside IR35/ Permanent     About the Role As a Principal Data Engineer, you will combine deep technical expertise with engineering leadership to drive the design, development and evolution of our cloud-scale data platform. You will provide technical leadership across distributed data processing, data products, streaming architectures and data platform capabilities, while remaining hands-on with coding, design and engineering best practices. You will play a key role in shaping engineering standards, mentoring teams, influencing technical direction and delivering robust, scalable data solutions that enable our Engineers, Data Scientists, Analysts and Governance teams to unlock business value.     What You'll Do Lead the design, development and continuous evolution of cloud-scale data platforms and data products across batch and streaming workloads Act as...
Contract Spy
Jul 07, 2026
Duration not stated
Lead Android Engineer – Mobile Platform at UST, Leeds/Remote, £Contract Rate
Contract Spy Hybrid (Leeds, UK)
Role description Lead Android Engineer – Mobile Platform (Kotlin / Android SDK) Leeds (Hybrid – 2–3 days onsite) Start: ASAP Employment Type: Fixed Term Employment/ Contract Inside IR35   About the Role We are looking for a Lead Android Engineer to drive technical design and delivery across our mobile platform. This is a hands-on technical leadership role, where you will take ownership of Android architecture, lead proof-of-concept (POC) initiatives, and build high-performance, secure, and scalable mobile applications. You will work closely with engineering teams, product stakeholders, and architects to define best practices and deliver robust mobile solutions that support business-critical use cases.   What You’ll Be Doing Lead Android technical design and architecture, ensuring scalable and maintainable solutions Drive POC development and innovation initiatives, validating new...
Contract Spy
Jul 06, 2026
Duration not stated
Red Hat Systems Engineer at Xoriant, London Canary Wharf/Remote, £Contract Rate
Contract Spy Hybrid (Canary Wharf, London, UK)
Senior Red Hat Systems Engineer / Linux Engineering Lead Canary Wharf, UK Hybrid (2 days a week) Long Term Contract (Inside IR35)   Seasoned Senior Red Hat Systems Engineer with over 10 years of deep expertise in Red Hat Enterprise Linux (RHEL) , specializing in large-scale infrastructure design, automation, performance optimization, and enterprise platform engineering across on-prem (VMware) and cloud (AWS) environments. Recognized for combining advanced Linux engineering skills with strong leadership , driving operational excellence, mentoring teams, and delivering resilient, secure, and highly automated infrastructure solutions aligned with business and regulatory requirements.   Professional Summary Expert in end-to-end Linux lifecycle management , including patching, OS upgrades, image creation, and large-scale deployments. Extensive experience with Red Hat Satellite , Ansible Automation Platform , and enterprise...
Contract Spy
Jun 16, 2026
Duration not stated
Windows Engineer at Test Yantra, Edinburgh, £250-£270 per day
Contract Spy Hybrid (Edinburgh, UK)
JOB DETAILS Minimum years of experience: 5+ years Job Description: The ideal candidate will have extensive experience with Windows Administration, SCCM (System Center Configuration Manager) for Windows deployments and a strong understanding of Active Directory, including Group Policy Objects (GPOs). Key Responsibilities: 1. Manage and maintain Windows server environments. 2. Perform deployments using SCCM, ensuring smooth and efficient updates and installations. 3. Administer Active Directory, including the creation and management of GPOs. 4. Troubleshoot and resolve issues related to Windows servers, SCCM, and Active Directory. 5.Monitor system performance and ensure the security and integrity of the network. 6.Collaborate with other IT team members to support overall IT infrastructure. Requirements: - Proven experience as a Windows Administrator. - Proficiency in SCCM for Windows deployments. - Strong knowledge of Active Directory and GPOs. - Excellent troubleshooting...
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