Security Engineer - Offensive Security

Join Twilio as a Staff Engineer in Offensive Security, where you will play a pivotal role in enhancing our security infrastructure. You will be responsible for identifying vulnerabilities and developing robust security measures to protect our systems. Your expertise will be essential in leading initiatives that strengthen our commitment to security.

Role Overview Crusoe is hiring a Staff Security Engineer in Dublin, IE. This role focuses on protecting the company’s technology and infrastructure. The position involves designing, implementing, and maintaining security solutions to safeguard sensitive data and support compliance with industry standards. What You Will Do Design security solutions that address current and emerging threats Implement and maintain security controls across systems and infrastructure Monitor for vulnerabilities and respond to incidents as needed Work with a team of engineers to develop and refine security strategies Support compliance efforts with relevant industry standards Team and Culture Collaborate with skilled professionals who focus on innovation and security. The team values practical solutions and a proactive approach to protecting company assets.

Role Overview Twilio is hiring a Staff Engineer, AI Security to help strengthen security systems using artificial intelligence. This fully remote position is based in Ireland. What You Will Do Design, implement, and maintain security protocols that use AI to protect Twilio’s infrastructure. Work closely with teams across the company to identify risks and improve security measures. Apply deep knowledge of artificial intelligence to develop new approaches for detecting and responding to threats. Collaboration This role partners with cross-functional teams to ensure security practices are integrated throughout Twilio’s systems and operations.

Join the innovative team at MongoDB as a Staff Software Engineer specializing in Server Ingress Security. In this pivotal role, you will be responsible for designing and implementing robust security solutions that protect our server infrastructure from unauthorized access and potential threats. Your expertise will play a crucial part in enhancing the security posture of our applications, ensuring seamless and secure connectivity for our users.

Role overview Jobgether seeks a Staff IT Engineer based in Ireland. The position centers on designing, implementing, and maintaining IT solutions that drive business operations and enhance user experience. This engineer partners with teams across the company to ensure systems remain stable and to address technical challenges as they come up. What you will do Work with colleagues from various departments to deliver IT solutions that fit business needs Design, build, and maintain IT infrastructure to support ongoing operations Troubleshoot and resolve complex technical issues to keep systems reliable Offer technical expertise on projects and help improve existing processes Requirements Solid technical background in IT systems and infrastructure Experience collaborating with cross-functional teams Strong problem-solving skills and attention to detail Ability to handle multiple tasks and priorities in a team environment

At Gong, we leverage advanced AI technology to revolutionize the success of revenue teams. Our Gong Revenue AI Operating System integrates data, insights, and workflows into a cohesive and reliable system that collaborates with the most successful revenue teams globally. With the support of the Gong Revenue Graph, AI-driven intelligence, specialized agents, and trusted applications, we empower over 5,000 organizations worldwide to gain profound insights into their teams and customers, automate essential sales processes, and achieve higher sales outcomes with greater efficiency. Discover more at www.gong.io.Joining Gong means becoming part of a vibrant community dedicated to innovative products, lofty ambitions, and driven individuals. We are at the forefront of shaping the future of revenue intelligence and seek individuals eager to contribute to what lies ahead. You will collaborate with a team that aspires to achieve greatness, operates swiftly, and values craftsmanship as well as camaraderie. In our environment, transparency and trust are fundamental, allowing every team member to make a significant impact. If you are looking to advance, challenge yourself, and engage in work that truly matters, Gong is where you can excel in your career.We are in search of a proactive Digital Architect of Chaos Prevention, someone who treats zero-day vulnerabilities as routine and constructs automated defenses before threats can even pose a challenge. As a Senior Security Operations Engineer, you will be the architect of our protective measures, refining code and strengthening our global infrastructure to enhance security.If you are a cloud-savvy defender who thrives in high-stakes situations and abhors monotonous tasks, your new adventure awaits.Your Responsibilities:Chaos Wrangler: Manage SIEM/SOAR tools like a digital maestro, assisting analysts by automating tedious tasks.Threat Buster: Vigilantly seek out threats before they emerge, not just responding but predicting.Trap Setter: Proactively develop custom logic, YARA rules, and Sigma signatures to detect attackers before they realize they’ve been identified.Multi-Cloud Mastery: Oversee our environments in AWS, GCP, and Azure, ensuring our security posture is impeccable across the board.Fortune Teller: Delve into the obscure corners of the web, analyzing adversarial behavior and transforming threat intelligence into actionable defense strategies.Elite Mentor: Lead and nurture junior analysts and engineers, establishing the benchmark during on-call rotations.Cross-Functional Diplomat: Collaborate effectively across IT, DevOps, and Privacy teams to enhance security protocols.

Confirmo is a premier global payment platform that specializes in stablecoin transactions. Established in Prague in 2014, we have developed one of the most robust infrastructures in the industry, gaining authorization under the EU Markets in Crypto-Assets (MiCA) framework from the Central Bank of Ireland in 2025.As we continue to expand our security team, we are seeking a Security Engineer who is eager to play an integral role in enhancing our security posture. This position goes beyond the traditional role of simply monitoring systems; at Confirmo, security is embedded in everything we do.Position Overview:In this role, you will collaborate closely with our Chief Information Security Officer (CISO) and Head of Security to strengthen our defenses, oversee our infrastructure, and ensure the integrity of our code. You will thrive in a modern, cloud-native environment, utilizing AWS and platforms like Cloudflare for edge security. We seek a versatile professional who is passionate about proactively identifying threats, delving deeply into code, and actively contributing to our security strategy.Key Responsibilities:Evaluate, challenge, and enhance our Software Development Life Cycle (SDLC) processes.Develop and maintain security policies for employees utilizing mobile devices.Conduct GAP analyses in collaboration with our CISO, comparing security standards against our AWS practices.Work with the Head of Security to devise and implement a comprehensive improvement plan.Take an active role in executing and reviewing infrastructure and code-level enhancements outlined in our security roadmap.Your Profile:We are in search of a security enthusiast who realizes that effective security merges infrastructure, code, and compliance.Cloud Security Architecture: Profound knowledge of public cloud infrastructure services (preferably AWS) and best security practices for cloud-native environments.Blue Team & SIEM Operations: Experience with security monitoring and observability platforms (e.g., DataDog), including log management and custom detection rule creation.Application Security (AppSec): Familiarity with secure programming principles and a solid understanding of the OWASP Top 10.

Join Stripe as a Staff Engineer in our Production Engineering team, where you will play a critical role in building and maintaining scalable systems.As a leader in this innovative environment, you will collaborate with cross-functional teams to optimize our infrastructure and enhance the reliability of our services. You will leverage your expertise to influence product design and architecture decisions, ensuring the highest performance and availability.

About SeapointSeapoint is revolutionizing the financial landscape for European startups and scale-ups. Our innovative, AI-driven business account streamlines everything from payroll and expenses to invoice payments and reporting, all centralized in one platform.Founded by Sean Mullaney, the former European CIO at Stripe, alongside a talented team of alumni from renowned companies such as Stripe, Wise, Wayflyer, Nubank, and Tide, we have successfully secured $3M in pre-seed funding led by Frontline Ventures. After nine months of dedicated development, we are now in private beta, collaborating with numerous VC-backed startups that are finally gaining the comprehensive financial insights they've been seeking.We are tackling a genuine challenge: European startups often find themselves caught between the inadequacies of neobanks and the overwhelming complexity of traditional corporate banking. Many are forced to manage 4-6 different financial products manually while earning no interest on their cash deposits. Our solution employs AI automation to alleviate this burden, allowing founders to devote more time to growing their businesses instead of managing spreadsheets.Explore more about our vision here.About the RoleHelp define the technical framework of startup finance.As a Staff Engineer, you will spearhead architectural decisions across our platform, mentor engineering teams, and tackle the toughest technical challenges we encounter. Whether it’s scaling our multi-tenant financial infrastructure or developing integrations with banks and other fintech partners, you will play a crucial role in ensuring reliability at scale.We are seeking leaders from diverse backgrounds who are enthusiastic about creating innovative solutions. You will collaborate with founders and senior engineers experienced in building financial infrastructure at scale, addressing the unique challenges that startups face.While we primarily use a modern stack featuring Typescript, bun, PostgreSQL, and various AWS services, we value curiosity and are always open to exploring new software development methodologies and AI tools.RequirementsKey Qualities: Technical expertise, system design proficiency, and the capability to convert complex problems into elegant solutions that facilitate growth for thousands of startups.If you're eager to create the infrastructure that empowers the next generation of companies, we want to hear from you.

Join MongoDB as a Senior Security Software Engineer focused on enhancing our Infrastructure Security. You will play a crucial role in protecting our systems while working alongside talented individuals in a dynamic environment.

Are you ready to shape the future of data management and AI/ML security? At MongoDB, we are pioneering remarkable transformations across industries, empowering developers to create innovative AI/ML-driven applications that enhance everyday life for individuals and enterprises alike. As the foremost modern data platform and the first database provider to go public in over two decades, we are at the forefront of a booming global data management software market projected to reach $138 billion by 2026. Join our dynamic team and lead the charge in innovation and creativity.Who You AreYou are an experienced security engineering professional eager to enhance MongoDB's customer engagement by bolstering our core database products. You are passionate about tackling complex security challenges while prioritizing exceptional customer experiences, drawing on your extensive expertise. You thrive in collaborative environments, working across various teams to devise and implement practical security solutions.Who We AreThe MongoDB Product Security team comprises a diverse group of experts committed to enhancing MongoDB’s security infrastructure, including both product security and the security capabilities we extend to our customers. We manage the MongoDB Database Server, encompassing both the Community and Enterprise editions.Our organization collaborates with software engineers to architect, implement, and maintain systems that safeguard customer data. Comprising a multidisciplinary team, we address product, software, cloud, infrastructure, and operational security concerns. Our key initiatives include:Establishing a developer-driven security program that integrates seamlessly with engineering artifacts, processes, and tools.Utilizing software architecture and coding standards to mitigate security vulnerabilities.Serving as subject matter experts on security for our technology stack and product offerings.

Telnyx operates a private, global multi-cloud IP network, delivering connectivity for people, devices, and applications. The company invests in edge technology and user-friendly APIs to modernize legacy systems and automate manual processes. Team culture emphasizes financial stability and continuous learning. For more details about Telnyx’s network and edge technology, visit https://telnyx.com/our-network and https://telnyx.com/resources/about-edge-connectivity. Role overview This Junior Security Operations Engineer role is based in Dublin, Ireland or Amsterdam, Netherlands. The position supports Telnyx’s Security Operations (SecOps) program, with a focus on hands-on work and tool development to strengthen security triage, investigation, and response. What you will do Develop and improve AI-assisted security tools, including triage agents for bug bounty submissions, investigation copilots for log and SIEM data, and response workflows that propose and track remediation steps. Split time between building these tools and reproducing vulnerabilities to strengthen the company’s security posture. Collaborate with the Technical Operations Director and the Governance, Risk, and Compliance (GRC) lead. Contribute to vulnerability management, threat response, dark web monitoring, and internal security tooling. Who thrives in this role Engineers interested in AI-driven security solutions. People who enjoy building and refining internal tools. Those who want to combine technical development with hands-on vulnerability work. Collaborators who value learning and growth in a stable, innovative setting.

Join Blockdaemon, a pioneering company in blockchain infrastructure, as a DevOps Security Engineer. In this role, you'll be instrumental in enhancing the security of our platforms and services, ensuring they meet the highest standards of safety and reliability. Your expertise in DevOps and security practices will allow you to work closely with our engineering teams to implement robust security measures, conduct vulnerability assessments, and respond to security incidents.

About UsAt Twilio, we are redefining the landscape of communications, enabling businesses and developers to create personalized experiences from anywhere in the world. Our innovative solutions empower hundreds of thousands of businesses, fostering connections and driving global impact. With our commitment to a remote-first work culture, we celebrate diversity and inclusion, ensuring every team member feels valued and engaged regardless of their location.As we continue to build the future of communication, we invite you to take charge of your career at Twilio, where your contributions help shape our mission.Join Us at TwilioWe are looking for a dedicated Senior Security Automation Engineer to join our dynamic Information Security Team.About the RoleIn this vital role, you will enhance the efficiency of our Information Security Team by automating and optimizing essential security workflows. Your expertise as a Software Engineer specializing in Security Automation will involve collaborating closely with security teams throughout the software development life cycle. You will engage in requirements gathering, technical design, sprint planning, coding, testing, deployment, and ongoing support. You will take ownership of automated workflows that bolster our security initiatives, including cloud security, product security, Governance, Risk & Compliance (GRC), and enterprise security, all while applying Agile methodologies to deliver continuous value to our stakeholders.

Role overview Jobgether is looking for a Staff Engineer to focus on its Data Platform. This senior engineering role involves shaping and advancing the data infrastructure that underpins Jobgether’s products and services. What you will do Design and build data systems that can handle increasing business demands. Improve the reliability and performance of core data infrastructure. Collaborate with engineering, product, and other teams to move data initiatives forward. Enhance the platform’s capabilities to support both new and ongoing projects. Location This position is based in Ireland.

About LastPassLastPass stands at the forefront of password and identity management, simplifying the login experience for both personal and professional realms. With the trust of over 100,000 businesses and millions of individuals, LastPass merges cutting-edge security with seamless accessibility for users ranging from families to enterprise professionals. Our platform ensures that crucial credentials remain secure, private, and easily accessible.Curious about our products? Visit our website and try it free!We invite fresh ideas, champion your development, and value your contributions. If this resonates with your career aspirations, we welcome you to Join Us!LastPass is actively seeking a Senior Cloud Security Engineer:In this role, you will work collaboratively with our DevOps, CI/CD engineers, and Architecture team to establish and uphold security best practices across our infrastructure.About the Team:The Product Security team at LastPass is on the lookout for a Senior Cloud Security Engineer to help protect the privacy and security of our company and users’ data. Our team consists of experienced application and cloud security engineers who work closely with our engineering, platform, and trust & security teams.If you have a passion for tackling complex challenges and are driven by scalability, this is the perfect opportunity for you!Who will you collaborate with?As a Senior Cloud Security Engineer at LastPass, you will partner with DevOps, CI/CD engineers, and our architecture team to enforce security best practices across our infrastructure.What exciting challenges will you face?Utilize your expertise in security architecture to enable engineers to build and securely operate products and services from inception.Evaluate, design, and implement security processes and controls to meet security, compliance, and audit standards.Conduct proactive research to identify emerging threats and attack vectors.

Intercom, a leader in AI Customer Service, is dedicated to enhancing business-customer interactions through innovative technology.Our flagship AI agent, Fin, represents the pinnacle of customer service AI, enabling businesses to provide always-on, exceptional customer support. When combined with our Helpdesk, it forms the Intercom Customer Service Suite, a comprehensive solution designed to tackle complex inquiries that require human touch.Since our inception in 2011, Intercom has built a robust client base of nearly 30,000 global businesses, championing a new standard in customer service. With values that inspire innovation, urgency, and value creation, we are committed to pushing boundaries.What’s the Opportunity?As a Staff Product Engineer, you will take on a pivotal role within our team and contribute significantly to our engineering efforts. You will develop both back-end and front-end systems, collaborating closely with designers, product managers, researchers, and data analysts. Your responsibilities will also include mentoring fellow engineers and partnering with the Engineering Manager to shape the team’s growth and technical direction.What Will I Be Doing?In this role, you will:Contribute to the evolution of our technical architecture to accommodate the growing demands of our customer base.Prioritize agility along with scalability and availability, utilizing continuous deployment to focus on incremental improvements.Engage in all stages of software development, from ideation and prototyping to design and implementation, balancing hands-on coding with architectural leadership.Utilize cutting-edge tools to enhance your development experience, allowing you to focus on solving impactful challenges.Actively participate in the hiring, mentoring, and career progression of engineering talent.Set high standards for technical excellence, performance, reliability, and operational success.

Join Wiz, the fastest-growing company in cloud security, as a Security Engineer specializing in Product and Production Infrastructure. In this role, you will perform security reviews, manage vulnerabilities, and respond to incidents within cloud-native environments. Collaborate closely with our software development and DevOps teams to secure our innovative products and infrastructure while influencing our product roadmap through the use of Wiz-for-Wiz tools. If you're passionate about cloud security and eager to make a significant impact, we want to hear from you!

At Ripple, we are pioneering a future where value is transferred as effortlessly as information. Our innovative crypto solutions empower financial institutions, businesses, governments, and developers to enhance the global financial system, promoting economic fairness and opportunity for individuals worldwide. Join a dynamic team where you can elevate your career and expand your skill set alongside supportive colleagues.If you are eager to make a significant impact and unlock remarkable career advancement prospects, we invite you to join us in creating tangible value for the world.In 2025, Ripple acquired GTreasury, marking an important step into the expansive corporate finance sector valued in the trillions.With over 40 years of expertise, GTreasury supports some of the largest and most sophisticated companies globally. By integrating its treasury command center into Ripple’s technology stack, we enable businesses to manage and optimize liquidity in real-time, across both traditional and digital assets.Become a part of our mission to revolutionize corporate treasury and the infrastructure that powers the Internet of Value.We are looking for a forward-thinking Staff Software Engineer who is passionate about developing a world-class platform in collaboration with a talented team. Your role will focus on driving technical excellence in application development, from design through implementation and maintenance.Key Responsibilities:Collaborate with architects and product managers to design, estimate, and implement innovative application features across front-end, server-side, and database tiers.Utilize Azure services to develop powerful, scalable, and resilient cloud-based solutions.Enhance software applications and manage delivery pipelines, feature flags, ensuring smooth integration and deployment.Conduct thorough unit, integration, and non-functional (performance, security) testing to ensure production readiness of our software.Employ observability tools and logging to troubleshoot and resolve issues across development, testing, and production environments.Stay updated on technology trends, explore new technologies, engage with tech communities, mentor fellow engineers, and lead technical design and code evaluations.Continuously seek improvements in team operations, processes, methodologies, and technology choices, aiming for excellence in every practice.