Staff Application Security Engineer

IvantiEMEA; Italy, Remote; Netherlands, Remote; Poland, Remote; Scotland, Remote; United Kingdom, Remote

Remote Full-time

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Experience Level

Senior

Qualifications

What You Will Bring: A minimum of 8 years of experience in web application security, with profound technical knowledge of both common and advanced security vulnerabilities, exploitation techniques, and practical remediation strategies. Demonstrated proficiency in applied cryptography, threat modeling, vulnerability assessment (including CVSS scoring and penetration testing), as well as secure software development practices.

About the job

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.

About Ivanti

Ivanti is a leading provider of IT asset and service management software. We are dedicated to helping organizations securely manage their digital transformation, ensuring productivity and innovation. Our solutions are designed to provide comprehensive visibility and control, enabling secure digital workspaces for businesses across the globe.

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Shawbrook

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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.

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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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Apr 24, 2026

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Full-time|On-site|London Metropolitain Area

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Staff Application Security Engineer

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About Ivanti

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