Application Security Manager

UnilyLower Eashing, United Kingdom

On-site Full-time

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Experience Level

Manager

Qualifications

Main ResponsibilitiesDefine and implement application security policies and frameworks. Conduct threat modeling and risk assessments to identify vulnerabilities. Engage in regular application security testing and remediation processes. Oversee cloud and container security assessments. Collaborate with engineering teams to embed security practices into the development workflow.

About the job

Job Purpose

As Unily continues to strengthen its position in the rapidly evolving Employee Experience platform market, we are seeking an experienced Application Security Manager. This pivotal role will be responsible for designing and implementing a robust application security program that seamlessly integrates strategic management with practical technical execution. The Application Security Manager will ensure that security practices are ingrained throughout the software development lifecycle (SDLC), allowing Unily to deliver secure products efficiently.

The Application Security Manager will establish and enforce secure development policies, advocate for privacy by design principles, and manage the risk and escalation process. Additionally, the role will involve active participation in technical assurance activities, including threat modeling, application testing, dependency analysis, cloud and container security assessments, and CI/CD pipeline hardening.

This role serves as both a strategic partner to leadership and a trusted advisor to engineering teams, acting as a key point of contact for clients when necessary.

About Unily

About UnilyUnily collaborates with some of the world's largest enterprises to drive Organizational Velocity through digital Employee Experience transformation. Esteemed brands such as Estée Lauder Companies, CVS Health, and British Airways leverage Unily's leading Employee Experience platform to enhance productivity, streamline communication, and cultivate a highly connected workplace.

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Application Security Engineer

Shawbrook

Full-time|On-site|Glasgow / Manchester or London

Join our dynamic team at Shawbrook as an Application Security Engineer. In this pivotal role, you will be responsible for safeguarding our applications by implementing robust security measures throughout the software development lifecycle. Your expertise will help identify vulnerabilities and enhance our overall security posture, ensuring our systems remain …

Feb 17, 2026

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Application Security Engineer

Palantir Technologies

Full-time|On-site|London, United Kingdom

Join Palantir, a pioneering force in data-driven software solutions, as a Senior Application Security Engineer. Our mission is to empower organizations to make critical decisions that save lives, enhance security, and drive innovation. As part of our esteemed Product Security team, you will collaborate closely with cross-functional teams to implement secure-by-design principles across our product offerings. Your expertise will be crucial in conducting comprehensive security reviews, threat modeling, and guiding the architectural design to ensure robust security measures are integrated from the ground up. You will lead strategic security initiatives that enhance our entire product suite and help identify and mitigate potential vulnerabilities through advanced analysis techniques. This is an opportunity to make a significant impact in a company dedicated to transforming the world through technology.

Jun 25, 2018

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Application Security Engineer

ElevenLabs

Full-time|On-site|United Kingdom

About ElevenLabsElevenLabs is at the forefront of AI innovation, dedicated to redefining human interaction with technology.Founded in January 2023, we introduced the first human-like AI voice model and have rapidly grown to serve millions of users and numerous organizations, including major enterprises like Deutsche Telekom and Meta. Backed by distinguished investors such as Andreessen Horowitz, ICONIQ Growth, and Sequoia, we have successfully raised $781 million in funding, achieving a valuation of $11 billion.Our expansion has led to three primary platforms:ElevenAgents provides businesses with the tools to create seamless and intelligent customer experiences, offering the necessary integration, testing, monitoring, and reliability for large-scale voice and chat agent deployment.ElevenCreative empowers creators and marketers to produce and edit audio, music, images, and videos in over 70 languages.ElevenAPI offers developers access to our advanced AI audio foundational models.Our achievements are driven by the creativity and dedication of our team - a diverse group of researchers, engineers, and operators, including IOI medalists and former founders. If you're passionate about making a significant impact and are ready to work hard, we want to connect with you.How We OperateAgile Environment: We prioritize rapid experimentation, lean teams, and minimal bureaucracy.Impact Matters: We focus on the contributions you make rather than job titles; no task is too small or too large.AI-Driven: Our use of AI enhances speed and quality across all departments, from engineering to operations.Commitment to Excellence: Every output must reflect the high standards of our AI models.Global Talent: We value your skills over your geographic location.What We ProvideDynamic Culture: Join us in a generational opportunity to shape the future of AI, collaborating with a team that is continually pushing boundaries.Opportunities for Growth: Be part of a vibrant team with endless chances to make an impact beyond your immediate role.Professional Development: We are committed to your continuous learning and growth.

Feb 4, 2026

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Application Security Engineer

ion

Full-time|On-site|London

Join our dynamic team at ion as an Application Security Engineer, where you will play a crucial role in safeguarding our applications and data. You will collaborate with development teams to identify vulnerabilities and implement security best practices, ensuring that our software is resilient against threats.Your expertise will help us create secure coding standards and guidelines, conduct security assessments, and perform code reviews. You will be at the forefront of enhancing our security posture and contributing to the overall success of our projects.

Apr 1, 2026

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Staff Application Security Engineer

Ivanti

Full-time|Remote|EMEA; Italy, Remote; Netherlands, Remote; Poland, Remote; Scotland, Remote; United Kingdom, Remote

Are you a seasoned Staff Application Security Engineer eager to implement innovative security solutions and uphold technical excellence? At Ivanti, you will be instrumental in shaping the future of secure digital workplaces by designing and enhancing top-tier products utilized globally. Join our vibrant, collaborative team and make a significant impact—helping organizations securely navigate the fast-paced digital landscape. Your expertise will protect countless users while fostering innovation at every level. Why This Role Matters As a Staff Application Security Engineer at Ivanti, your role is vital in protecting our products and users from emerging threats. Your contributions will ensure trust and resilience in our technology, enabling organizations around the world to operate securely and innovate with confidence. What You’ll Do: Oversee the integration of security best practices across all stages of the software development lifecycle, guaranteeing robust protection for Ivanti's products, services, and IT assets. Develop innovative and scalable security tools, processes, and solutions to proactively identify, remediate, and mitigate vulnerabilities in extensive and complex codebases. Design secure architectures, conduct thorough threat modeling, and lead penetration testing and code reviews for both web and mobile applications to uphold the highest security standards. Collaborate with development, operations, and architecture teams to deeply embed security into DevOps practices and promote a culture of continuous security awareness throughout the organization. Lead security education initiatives by providing clear, actionable training and documentation to cross-functional teams, driving vulnerability remediation efforts with stakeholders of varying technical expertise. Work with global product and engineering teams, business leaders, and third-party security vendors to interpret vulnerability reports and coordinate effective security solutions and disclosure programs. Advise stakeholders on prioritizing vulnerabilities, enforcing secure coding standards, applying cryptographic techniques, and adopting industry-leading security protocols and compliance practices.

Apr 10, 2026

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Senior Application Security Engineer

Addepar

Full-time|Remote|Remote, UK

Addepar is looking for a Senior Application Security Engineer to help protect our applications and data. This position is fully remote and open to candidates based in the UK. Key responsibilities Find and assess security vulnerabilities within applications Apply security controls and measures to address risks Collaborate with teams across the company to strengthen security practices Support compliance efforts with relevant industry standards Teamwork and influence This role partners closely with engineering and other departments to improve application security. The Senior Application Security Engineer will play a part in shaping Addepar’s overall security approach as we develop and maintain our technology.

Apr 22, 2026

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Senior Application Security Engineer at Prolific | Remote, UK

Prolific

Full-time|Remote|Remote, UK

Prolific seeks a Senior Application Security Engineer to help protect its applications and user data. This position is fully remote within the UK. Key responsibilities Evaluate application security and spot potential risks Collaborate with engineering and product teams to design secure software architectures Improve security practices throughout the development lifecycle Support efforts to safeguard user data and maintain trust in the Prolific platform Role focus This role centers on working closely with technical teams to build security into every stage of software development. The Senior Application Security Engineer will play a part in shaping secure solutions and reinforcing Prolific’s commitment to protecting its users. Location This is a remote role open to candidates based in the UK.

Apr 27, 2026

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Principal Solutions Engineer - Application Security

Wiz Inc.

Full-time|Remote|Remote - United Kingdom

Wiz Inc. works at the center of cloud security, helping organizations protect their cloud environments and support business growth. The company’s platform scans and secures over 230 billion files every day, serving a global customer base that includes more than half of the Fortune 100. Wiz’s team brings together professionals from over 20 countries, collaborating to safeguard the infrastructure of some of the world’s largest companies. Security teams worldwide rely on Wiz’s expertise and solutions. Role overview The Principal Solutions Engineer - Application Security will play a key part in supporting Wiz’s customers as they secure their cloud applications. This role offers the chance to work with a diverse team and contribute to the protection of critical cloud infrastructure. What makes Wiz unique Trusted by security teams at leading global companies Handles security for a significant share of the Fortune 100 Processes and protects massive volumes of data daily Encourages creative approaches and values each team member’s expertise More information about Wiz’s growth can be found here.

Apr 30, 2026

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Application Security Engineer at Writer | London, UK

WRITER

Full-time|Hybrid|London, UK

About WRITERWRITER is at the forefront of empowering the world's leading enterprises with AI-driven solutions. Our mission is to enhance human capabilities through superintelligence, proving that transformative, reliable AI is achievable. By bridging IT and business teams, we enable organizations to undergo enterprise-wide transformations. Hundreds of renowned companies, including Mars, Marriott, Uber, and Vanguard, utilize WRITER's comprehensive platform to build and deploy AI agents based on their unique data, powered by our enterprise-grade LLMs. With a valuation of $1.9B and support from top-tier investors like Premji Invest, Radical Ventures, and ICONIQ Growth, WRITER is solidifying its role as a pioneer in enterprise generative AI.Founded in 2020, and with offices in San Francisco, New York City, Austin, Chicago, and London, our dynamic team is dedicated to innovative thinking and swift action. We invite talented, dedicated builders and visionaries to join us in shaping the future of work through AI. About the RoleJoin us as a Security Engineer specializing in Application Security at WRITER, where security innovation meets enterprise-scale challenges. You will lay the foundational security measures to safeguard the AI systems that support some of the most recognizable brands globally. Collaborating closely with engineering teams, your role will be pivotal in integrating security into every aspect of our coding processes, ensuring our platform remains robust and trustworthy.This is a tremendous opportunity to shape the security landscape for enterprise AI applications, from threat modeling our LLM architectures to creating scalable automated security controls across our growing platform. Embrace the challenge of discovering creative solutions that allow us to proceed securely. You will encounter unique hurdles that most security engineers may never face, including securing AI agents, shielding training data pipelines, and designing controls for systems that are still in their infancy.This position offers the flexibility of remote work within the US or a hybrid model from our San Francisco or New York City offices, with direct reporting to the Head of Security Engineering.

Feb 12, 2026

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Application Security Specialist

hellokindred

Contract|On-site|Knutsford

Join our dynamic team at hellokindred as an Application Security Specialist. In this role, you will leverage your expertise to safeguard applications and protect sensitive data through rigorous security assessments and proactive threat modeling. Collaborate with cross-functional teams to implement best practices and ensure compliance with industry standards.

Mar 13, 2026

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Application Security Manager

Unily

Full-time|On-site|Lower Eashing, United Kingdom

Job PurposeAs Unily continues to strengthen its position in the rapidly evolving Employee Experience platform market, we are seeking an experienced Application Security Manager. This pivotal role will be responsible for designing and implementing a robust application security program that seamlessly integrates strategic management with practical technical execution. The Application Security Manager will ensure that security practices are ingrained throughout the software development lifecycle (SDLC), allowing Unily to deliver secure products efficiently.The Application Security Manager will establish and enforce secure development policies, advocate for privacy by design principles, and manage the risk and escalation process. Additionally, the role will involve active participation in technical assurance activities, including threat modeling, application testing, dependency analysis, cloud and container security assessments, and CI/CD pipeline hardening.This role serves as both a strategic partner to leadership and a trusted advisor to engineering teams, acting as a key point of contact for clients when necessary.

Mar 15, 2026

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Lead Application Security Specialist

Prolific

Full-time|Remote|Remote, UK

Prolific seeks a Lead Application Security Specialist to strengthen the security of its applications and systems. This is a fully remote role open to candidates based in the UK. Key responsibilities Manage and mentor a team dedicated to application and system security. Detect vulnerabilities and implement solutions to address them. Maintain compliance with industry security standards. Role impact This position directly shapes the security practices behind Prolific’s products and services. The Lead Application Security Specialist plays a central part in managing risk and supporting the organization’s reputation for trustworthiness.

Apr 27, 2026

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Security Engineer at incident.io | London

incident.io

Full-time|On-site|London

Join Our Team as a Security EngineerAt incident.io, we are transforming incident response with our cutting-edge AI platform, dedicated to minimizing response times and enhancing reliability. Our comprehensive solution integrates on-call management, incident response, AI SRE, and status updates into one seamless platform, empowering teams to act swiftly, reduce outages, and keep their customers informed.Since our inception in 2021, we have successfully assisted over 1,500 organizations, including renowned names like Netflix, Airbnb, and Block, in managing over 500,000 incidents. Each month, thousands of engineers, product managers, and support staff rely on incident.io to restore services efficiently, maintain alignment during high-pressure situations, and focus on what truly matters.We are a rapidly expanding, ambitious team that values our customers, the quality of our product, and the magic we create together. With $100M raised from prestigious investors like Index Ventures, Insight Partners, and Point Nine, along with contributions from top executives in the tech industry, we’re poised for significant growth.Your RoleAs our inaugural Security Engineer, you will play a vital role in our product teams, ensuring application security is integrated from the foundational stages. Collaborating closely with engineers, you will identify vulnerabilities before they progress to production, mentor your peers on secure coding practices, and foster a culture where security is a primary focus.This position offers a unique opportunity to work at the intersection of security and engineering, contributing to the design and development of secure systems that align with our commitment to customer satisfaction.

Jan 1, 2026

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Application Security Penetration Tester Consultant

Coalfire

Full-time|On-site|United Kingdom

Join Coalfire as a Consultant specializing in Application Security Penetration Testing. In this critical role, you will be responsible for identifying vulnerabilities and providing actionable insights to enhance the security posture of our clients’ applications. You will collaborate with a talented team of security experts to develop and implement testing methodologies that align with industry standards.

Jan 9, 2026

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Security Analyst - Investment Banking Applications

System Canada Technologies

Contract|On-site|London

Join our dynamic team at System Canada Technologies as a Security Analyst, focusing on Investment Banking Applications. In this role, you will be responsible for ensuring the integrity and security of our financial systems. Collaborate with cross-functional teams to assess vulnerabilities, implement security protocols, and enhance application security. If you are passionate about cybersecurity and have a keen interest in the finance sector, we want to hear from you!

Mar 10, 2013

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Senior Application Engineer / Developer

Telefónica Tech

Full-time|On-site|London

Join Our Team as a Senior Application Engineer / DeveloperAre you passionate about crafting cutting-edge AI and cloud-native applications that leave users in awe? Are you eager to explore the frontiers of software delivery, AI engineering, and innovative application patterns? If you have a knack for developing intelligent applications that push the boundaries of technology, we want to hear from you!In this dynamic role, you will be at the forefront of building AI-driven solutions, focusing on hands-on development to create applications that challenge the status quo.Key Responsibilities:Design, build, test, and deploy state-of-the-art applications.Transform software delivery processes in the AI and cloud era.Evaluate AI code generation for accuracy and functionality.

Jan 30, 2026

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Application Security Architect - Join Veeva's Mission in Oxford

Veeva Systems Inc.

Full-time|Hybrid|United Kingdom - Oxford

Veeva Systems is a visionary firm dedicated to revolutionizing the life sciences industry through innovative cloud solutions. We empower organizations to expedite the delivery of therapies to patients, achieving over $3B in revenue last year and showcasing our remarkable growth trajectory. Our core values drive us: Do the Right Thing, Customer Success, Employee Success, and Speed. Notably, we became a public benefit corporation (PBC) in 2021, ensuring a balance between the needs of our customers, employees, society, and investors. As a Work Anywhere company, we prioritize your flexibility, allowing you to work from home or in the office to maximize your productivity in the environment that suits you best. Join us in transforming the life sciences sector and making a significant impact on our customers, employees, and the wider community.

Jan 4, 2023

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Applications Engineer

Bosch Group

Internship|On-site|Birmingham

Join the Bosch Group as an Applications Engineer and contribute to innovative solutions in technology and engineering. In this role, you will work closely with clients to understand their needs and provide tailored technical support. This is an excellent opportunity for recent graduates or individuals seeking to gain hands-on experience in a dynamic environment.

Feb 17, 2026

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Senior Security Engineer

Abound

Full-time|On-site|London

Abound is changing how consumer lending works in the UK and beyond. By combining advanced AI with Open Banking data, the company looks at a person’s complete financial situation, not just a credit score, to make lending decisions that are fairer and more accurate. Since launch, Abound has issued over £1.3bn in loans, with a credit performance that outpaces industry averages. The company became profitable within 2.5 years and has backing from major investors, including Citi and Deutsche Bank. With over £2bn in funding, Abound is recognized as one of Europe’s fastest-growing fintechs. Role overview This Senior Security Engineer position is based in London and sits within the Platform team. The role blends DevSecOps responsibilities, serving as a bridge between product engineering and Corporate IT. As a hands-on contributor, the Senior Security Engineer critically reviews security architecture across both production and internal IT environments. During the first 6 to 12 months, the focus will be on designing and implementing next-generation cloud security architecture in AWS and GCP. The role also involves building and maturing internal SOC capabilities, particularly around detection and response. What you will do Manage Microsoft Sentinel to strengthen SIEM/SOAR capabilities Automate RBAC for identity and access management across AWS, Microsoft Entra, and internal systems Embed security controls into GitLab CI/CD pipelines, including scanning, infrastructure-as-code reviews, and automated policy enforcement Support a shift-left approach by integrating security throughout the software development lifecycle Technology stack Cloud & Compute: AWS, ECS Fargate, Aurora, Lambda, GCP Data Lake: S3, DMS, Glue Security & Identity: Microsoft Defender (XDR), Microsoft Sentinel (SIEM/SOAR), Defender for Cloud (CSPM), Microsoft 365, Entra, Intune Cloud Security Tooling: GuardDuty, Security Hub, Inspector, Security Command Center Code & Infrastructure: Terraform, GitLab CI/CD

Apr 24, 2026

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Security Engineer

airapps

Full-time|On-site|London Metropolitain Area

airapps is hiring a Security Engineer to help safeguard digital assets and infrastructure in the London Metropolitan Area. This role centers on identifying weaknesses, managing security risks, and ensuring strong security measures are in place. Key responsibilities Identify vulnerabilities throughout information systems Reduce and address security risks as they arise Implement and maintain effective security protocols Support efforts to comply with relevant industry standards Help strengthen the company’s overall security posture Location This position is based in the London Metropolitan Area.

Apr 24, 2026

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Application Security Manager

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