Senior Cyber Defense Engineer Jobs

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Senior AI Engineer, Big Data & AI Solutions Overview The Security Solutions Data Science team develops AI and machine learning capabilities that help protect the global payments ecosystem from fraud and cyber threats. Supporting Mastercard’s Safety Net product, the team develops and enhances models that analyze billions of transactions and identify suspicious activity. As a Senior AI Engineer, you will work at the intersection of big data engineering and AI/ML, helping build and support the data, features, models, and production processes behind fraud detection. Ideal Candidate Profile You are a big data and AI/ML engineer who has used Apache Spark in a professional environment and has hands-on experience working within CI/CD-driven engineering environments. You understand how large-scale data moves from raw inputs through data and feature pipelines into machine learning models, and how those models are deployed, monitored, and improved in production. Large-scale data → Spark/PySpark → Data & Feature Pipelines → ML models → Production Deployment→ CI/CD→Monitoring & Drift Detection → Optimization & Retraining Experience with Generative AI, RAG, LLMs, or agentic AI is valuable, but the foundation for this role is large-scale data engineering and production AI/M

The Security Incident Response Team (SIRT) plays a vital role in keeping Datadog safe from cybersecurity threats, defending the organization against threat actors, and maintaining the trust of our customers by ensuring their data remains protected. In this role, you will work closely with teams across Datadog to identify, triage, and respond to a wide range of threats, ensuring that we can contain any incidents as quickly as possible. You will also contribute to the tools and systems that make us more effective in our mission, and help ensure we have cross-functional learning from incidents to improve our defensive posture going forward. At Datadog, we place value in our office culture - the relationships and collaboration it builds, and the creativity it brings to the table. We operate as a hybrid workplace to ensure our Datadogs can create a work-life harmony that best fits them. What You’ll Do: Partner with our Cyber Threat Intelligence and Detection Engineering teams to identify threats to Datadog and ensure we have appropriate, accurate, high-signal detections for those threats. Triage escalated alerts to determine whether a security incident is occurring or may occur imminently. Respond to security incidents, whether as an incident commander or as an incident responder Make us more efficient through building tools and automations that eliminate repetitive processes Help us improve our overall security posture through post-incident reviews, tabletop and purple team exercises, and process/runbook improvements. Participate in a light on-call rotation. Who You Are: You have at least 5 years of experience in security incident response, threat hunting, security operations, cloud security, or other operational security domains. You’ve worked with at least one public cloud platform (AWS, GCP, or Azure) and cloud-native technologies like Kubernetes, Docker, or Terraform. You have a strong understanding of cloud-native threat actor TTPs and corresponding defensive contr

What We Do: Cybercrime is growing, and more businesses are getting hit by threats that used to target only the biggest organizations. That pushes defenders like us to operate at the highest level, and it deepens our need for good people who want to make a meaningful impact. Founded in 2015 by former NSA cyber operators, Huntress is a remote-first team working to make enterprise-grade cybersecurity accessible to businesses of all sizes. We work closely with security teams and service providers protecting complex environments, often without the time or headcount to handle it all. That’s why we build our technology in-house and back it with a 24/7 human-led Security Operations Center (SOC). As a result, our platform is never disconnected from the experts who manage it, ensuring our customers' protection. Huntress now secures more than 5M endpoints and 16M identities worldwide. Those numbers keep growing because more businesses rely on us to help carry the load and operate with more confidence. Every day, you can see that commitment in how we stand with our customers and how we show up for each other. Reports to: Manager, IT Solutions Engineering Location: Remote US Compensation Range: $130,000 to $140,000 base plus bonus and equity What You’ll Do: As a Senior IT Automation Engineer on the IT Solutions Engineering team, you will shape how Huntress uses automation and AI to work smarter, move faster, and scale securely. You will own the strategy and operating model for our Automation and Agentic AI Center of Excellence, turning tools such as Claude, Glean, Zapier, and related platforms into practical systems that improve how teams get work done. You embrace continuous improvement by testing what has the most leverage, learning quickly, and improving the patterns that scale. You find friction before it becomes someone else’s problem and owning the path from idea to adoption. You measure success by the operational impact, security, and value your systems create acros

Rubrik’s Sales and Sales Engineering organisation is a united team of elite, cross-functional professionals helping companies and government entities build resilience against cyberattacks, malicious insiders, and operational disruptions. We provide continuous professional development through our world-class sales enablement program, and our One Rubrik selling approach gives you all the resources you need to exceed your goals, maximize your earning potential, and take your career to the next level, all while doing something that truly matters: protecting the world’s data. Rubrik is looking for Sales Engineers to provide technical direction and business guidance to the regional sales team. As a Sales Engineer, you will be accountable for regional revenue goals by driving innovative technical programs and overseeing day-to-day account-level activities. You will be r esponsible for evangelizing, positioning, and architecting Rubrik’s Cyber Resilience, Observability, and Remediation tools to a targeted list of new & existing customers throughout the UKI region. What You'll Do: Provides technical leadership and direction to customers and internal staff in the development of fully integrated technology solutions in support of pre-sales activities in the assigned market. Assists in the analysis, design and development of fully integrated technology solutions. Demonstrates technical leadership and subject matter expertise on Rubrik’s products, distributed architectures, file systems, and competitive storage offerings in the SAN product space. Acts as technical expert and consultant to develop and propose solutions that meet the technology and business requirements of assigned customers. Makes technical and sales presentations to customer's technical staff and senior management. Serves as a trusted technology advisor to customers and serves as an internal resource on technical issues or specific business applications within an assigned market segment. Successf

What We Do: Cybercrime is growing, and more businesses are getting hit by threats that used to target only the biggest organizations. That pushes defenders like us to operate at the highest level, and it deepens our need for good people who want to make a meaningful impact. Founded in 2015 by former NSA cyber operators, Huntress is a remote-first team working to make enterprise-grade cybersecurity accessible to businesses of all sizes. We work closely with security teams and service providers protecting complex environments, often without the time or headcount to handle it all. That’s why we build our technology in-house and back it with a 24/7 human-led Security Operations Center (SOC). As a result, our platform is never disconnected from the experts who manage it, ensuring our customers' protection. Huntress now secures more than 5M endpoints and 16M identities worldwide. Those numbers keep growing because more businesses rely on us to help carry the load and operate with more confidence. Every day, you can see that commitment in how we stand with our customers and how we show up for each other. Reports to: Manager, Product Research Location: Remote US Compensation Range: $170,000.00 to $185,000.00 base plus bonus and equity What You’ll Do: Do you like getting into the weeds on all things technical, psychological, and educational, and have a desire to know how things work? Then this is the position for you. We are looking for that Swiss Army Knife that brings broad experience to each challenge presented. The Huntress Product team has the unique honor of waking up every morning knowing we’re going to make hackers regret targeting our partners and customers. As a Senior Product Researcher for our Security Awareness Training product, we’re looking for someone who wants to pour all of their creativity into building and implementing simple solutions that are disproportionately effective at countering these constantly evolving threats. One should have experi

What We Do: Cybercrime is growing, and more businesses are getting hit by threats that used to target only the biggest organizations. That pushes defenders like us to operate at the highest level, and it deepens our need for good people who want to make a meaningful impact. Founded in 2015 by former NSA cyber operators, Huntress is a remote-first team working to make enterprise-grade cybersecurity accessible to businesses of all sizes. We work closely with security teams and service providers protecting complex environments, often without the time or headcount to handle it all. That’s why we build our technology in-house and back it with a 24/7 human-led Security Operations Center (SOC). As a result, our platform is never disconnected from the experts who manage it, ensuring our customers' protection. Huntress now secures more than 5M endpoints and 16M identities worldwide. Those numbers keep growing because more businesses rely on us to help carry the load and operate with more confidence. Every day, you can see that commitment in how we stand with our customers and how we show up for each other. Reports to: Director, Engineering Location: Remote US, Only Compensation: $165,000 to $190,000 base plus bonus and equity What You’ll Do: Huntress is building an Agentic SOC. When our detection pipeline raises a signal, an LLM-based agent picks it up and investigates it end-to-end. It gathers telemetry across our products, reconstructs what happened, and makes a well-documented determination about whether the activity is malicious. Over time, it will take on more of the work itself, growing from resolving routine cases to acting fast when it finds an attack and handing analysts cases with the evidence already assembled. This system is meant to augment our analysts, not replace them. It takes the high-volume, repetitive work off their plates so they can focus on complex cases and hands-on keyboard intrusions where human expertise matters most. It also reduces toil in

What We Do: Cybercrime is growing, and more businesses are getting hit by threats that used to target only the biggest organizations. That pushes defenders like us to operate at the highest level, and it deepens our need for good people who want to make a meaningful impact. Founded in 2015 by former NSA cyber operators, Huntress is a remote-first team working to make enterprise-grade cybersecurity accessible to businesses of all sizes. We work closely with security teams and service providers protecting complex environments, often without the time or headcount to handle it all. That’s why we build our technology in-house and back it with a 24/7 human-led Security Operations Center (SOC). As a result, our platform is never disconnected from the experts who manage it, ensuring our customers' protection. Huntress now secures more than 5M endpoints and 16M identities worldwide. Those numbers keep growing because more businesses rely on us to help carry the load and operate with more confidence. Every day, you can see that commitment in how we stand with our customers and how we show up for each other. Reports to: Senior Manager, Technical Recruiting Location: Remote US Compensation Range: $130,000 to $150,000 base plus bonus and equity What You'll Do: This role belongs to a senior technical recruiting partner who understands that the right hire can change a team's trajectory. Outcome-Obsessed by nature, this partner owns every search from intake through close and measures success by each hire's impact on the Huntress mission while building strong relationships with candidates and hiring managers along the way. Candor defines the work: direct feedback helps teams align and shows candidates exactly where they stand. When searches get difficult or priorities shift, Warrior Spirit keeps things moving, resilient, focused, and resourceful from the first conversation to the signed offer. Creativity drives how this role finds talent, sourcing strong candidates through inv

About Teneo Teneo is the global CEO advisory firm. We partner with our clients globally to do great things for a better future. Drawing upon our global team and expansive network of senior advisors, we provide advisory services across our five business segments on a stand-alone or fully integrated basis to help our clients solve complex business challenges. Our clients include a significant number of the Fortune 100 and FTSE 100, as well as other corporations, financial institutions and organizations. Our full range of advisory services includes strategic communications, investor relations, financial transactions and restructuring, management consulting, physical and cyber risk, organizational design, board and executive search, geopolitics and government affairs, corporate governance and ESG. The firm has more than 1,800 employees located in 50+ offices around the world. Description The Senior Vice President within Teneo’s Strategy and Communications business is a pivotal member of our account teams. Senior Vice Presidents are responsible for executing strategic programs and communications initiatives in support of Teneo’s clients. This individual should have extensive experience working with and within technology companies, particularly with the founders of dynamic startups. They should have a strong understanding of and network among non-traditional media, including but not limited to podcasts, online video hosts, and newsletter writers. It is critical that they approach communications from a holistic perspective, with a demonstrable understanding of how earned media, social, events, and all of the communications levers can be utilized in concert to advance client goals. They will work closely with Account Leaders and teams to deliver best-in-class service and function as a cohesive unit. Responsibilities Manage complex strategic communications planning and execu

About Teneo Teneo is the global CEO advisory firm. We partner with our clients globally to do great things for a better future. Drawing upon our global team and expansive network of senior advisors, we provide advisory services across our five business segments on a stand-alone or fully integrated basis to help our clients solve complex business challenges. Our clients include a significant number of the Fortune 100 and FTSE 100, as well as other corporations, financial institutions and organizations. Our full range of advisory services includes strategic communications, investor relations, financial transactions and restructuring, management consulting, physical and cyber risk, organizational design, board and executive search, geopolitics and government affairs, corporate governance and ESG. The firm has more than 1,800 employees located in 50+ offices around the world. The Opportunity Teneo's San Francisco office is growing, and the Senior Vice President will be one of the people who shapes it. You will work with a small, senior team that helps technology companies through moments of significant transition. Our clients are also rethinking what communications means inside their companies, and this role gives you a front-row seat to that work. You will do excellent client work now and help build the office's reputation in the Bay Area over time. Who We're Looking For Someone who understands how technology companies work from the inside, especially dynamic startups and their founders. The strongest candidates have built or rebuilt something: a team, a function, a process, or a way of working. We value in-house experience at technology companies, and we also welcome agency and advisory professionals with deep tech-client experience who bring the same builder's mindset. Responsibilities Manage complex strategic communications planning and execution, using every lever together: earned media

About Teneo Teneo is the global CEO advisory firm. We partner with our clients globally to do great things for a better future. Drawing upon our global team and expansive network of senior advisors, we provide advisory services across our five business segments on a stand-alone or fully integrated basis to help our clients solve complex business challenges. Our clients include a significant number of the Fortune 100 and FTSE 100, as well as other corporations, financial institutions and organizations. Our full range of advisory services includes strategic communications, investor relations, financial transactions and restructuring, management consulting, physical and cyber risk, organizational design, board and executive search, geopolitics and government affairs, corporate governance and ESG. The firm has more than 1,800 employees located in 50+ offices around the world. Description : A Senior Vice President within Teneo is responsible for maintaining and building business relationships with clients and executing work programs. Senior Vice Presidents are highly motivated and dedicated individuals with significant experience across all aspects of capital market s communications and investor relations. The role requires a high level of Financial acumen and capital markets judgment , including an ability to interpret financial results, guidance and anticipate market reaction , with a preference for prior sell side equity analyst roles , buy side a nd / or in house IR experience . A Senior Vice President is recognized as expert in their respective field and brings a wealth of experience, a track record for successful execution and a network of professional relationships . Responsibilities : Serves as a trusted business advisor by influencing client direction in all areas of investor relations Develops Teneo’s client IR strategies that create competitive advantage in the face of changing business, sect

About the Role Rubrik's Senior CXO Customer Advocacy Manager sits at the intersection of technology, storytelling, and enterprise customer engagement. It lives within the CXO Transformation team, a function that operates outside of marketing and is embedded in Rubrik's most senior customer relationships. The person in this role owns two interconnected programs: Rubrik's customer story program and the CXO Visionaries program. They identify the right customers, lead discovery conversations, and translate complex data security and cyber resilience outcomes into narratives that hold up at the board and C-suite level. They also own CXO Visionaries — Rubrik's exclusive, invitation-only community for Fortune 500 and Global 2000 CIOs, CISOs, and CTOs — running the full program from member recruitment and CXO Visionary profiles to speaking engagements at Rubrik CXO events, award recognition, and executive thought leadership opportunities. They bring enough technical depth to earn credibility with senior IT and security leaders, and enough craft to turn that credibility into content and experiences that actually get used. This is a builder's role. Its programs need structure, repeatable processes, a strong point of view on quality, and someone who can manage the full lifecycle. Responsibilities Customer Discovery and Story Development Build and manage a pipeline of customer story candidates across key verticals, use cases, and geographies, in close partnership with sales, customer success, business value, and the product/engineering teams Lead customer discovery conversations that go beyond intake interviews to surface the real operational impact of Rubrik's platform: what the threat looked like, what recovery required, and what changed afterward Write and produce first-draft narratives across formats including written customer stories, video briefs, executive one-pagers, and event-ready abstracts CXO Visionaries Program Own and operate the CXO Visionaries program end

What We Do: Cybercrime is growing, and more businesses are getting hit by threats that used to target only the biggest organizations. That pushes defenders like us to operate at the highest level, and it deepens our need for good people who want to make a meaningful impact. Founded in 2015 by former NSA cyber operators, Huntress is a remote-first team working to make enterprise-grade cybersecurity accessible to businesses of all sizes. We work closely with security teams and service providers protecting complex environments, often without the time or headcount to handle it all. That’s why we build our technology in-house and back it with a 24/7 human-led Security Operations Center (SOC). As a result, our platform is never disconnected from the experts who manage it, ensuring our customers' protection. Huntress now secures more than 5M endpoints and 16M identities worldwide. Those numbers keep growing because more businesses rely on us to help carry the load and operate with more confidence. Every day, you can see that commitment in how we stand with our customers and how we show up for each other. Reports to: Senior Manager, Detection Engineering & Threat Hunting Location: Remote Australia Compensation Range: $150,000 to $170,000 AUD base plus bonus and equity What You’ll Do: Members of the Huntress DE&TH team wake up every morning with the honor of impeding threat actors through a combination of detection engineering and threat hunting. This team sits alongside our 24x7 Security Operations Center, and our Adversary Tactics & Tactical Response function, and plays a pivotal role in detecting threats actors before they get a chance to impact our partner environments. As a Senior Detection Engineering and Threat Hunting (DE&TH) Analyst you should be drawn to the hard problems: detecting stealthy intrusions, managing false positives and false negatives at scale, and uncovering clues that may expose an evolving campaign across Huntress partner

What We Do: Cybercrime is growing, and more businesses are getting hit by threats that used to target only the biggest organizations. That pushes defenders like us to operate at the highest level, and it deepens our need for good people who want to make a meaningful impact. Founded in 2015 by former NSA cyber operators, Huntress is a remote-first team working to make enterprise-grade cybersecurity accessible to businesses of all sizes. We work closely with security teams and service providers protecting complex environments, often without the time or headcount to handle it all. That’s why we build our technology in-house and back it with a 24/7 human-led Security Operations Center (SOC). As a result, our platform is never disconnected from the experts who manage it, ensuring our customers' protection. Huntress now secures more than 5M endpoints and 16M identities worldwide. Those numbers keep growing because more businesses rely on us to help carry the load and operate with more confidence. Every day, you can see that commitment in how we stand with our customers and how we show up for each other. Reports to: Director, Accounting Location: Remote US Compensation Range: $165,000 to $175,000 base plus bonus and equity What You’ll Do: You are a revenue accounting leader who brings sharp technical judgment, operational discipline, and a genuine commitment to developing people. You make complex ASC 606 questions clear, help teams move quickly with confidence, and care deeply about whether the revenue engine works in practice, not just on paper. You improve systems and processes without waiting for every detail to be solved first. You lead the revenue accounting team through close, audit, and the daily realities of a growing SaaS business. You spot issues in contracts, billing workflows, and controls and own the path to a better outcome. You provide clear guidance and feedback to your team, focusing on accurate reporting, scalable operations, and measurable impact.

About the Team At Capco, we believe in fostering an inclusive work environment where you can #BeYourselfAtWork. Our Cybersecurity team partners with leading financial institutions to evaluate, design, and implement risk-aware security solutions that enable business growth and resilience. We help organizations navigate an evolving threat landscape by delivering strategic advisory services across cyber risk, governance, resilience, data protection, cloud security, and emerging technologies. As artificial intelligence continues to transform the financial services industry, we work closely with clients to establish secure, responsible, and compliant AI adoption strategies. Our team helps organizations manage AI-related risks, strengthen governance frameworks, secure AI-enabled platforms, and build trust in the use of emerging technologies. We combine deep financial services expertise with cybersecurity, risk management, data, and technology capabilities to advise executive leadership on their most critical security and digital transformation priorities. About the Job As a Senior Consultant within Capco’s Cybersecurity Practice, you will play a key role in delivering complex cybersecurity and technology risk engagements for leading Investment Banking, Retail Banking, Wealth Management, Capital Markets, and Insurance clients. You will work alongside industry experts and client stakeholders to solve challenging business problems, strengthen security capabilities, and support large-scale transformation initiatives. You will also help clients address emerging risks associated with cloud adoption, digital transformation, artificial intelligence, and evolving regulatory expectations. What You'll Get to Do Design and enhance cybersecurity policies, standards, controls, and governance frameworks across domains including Operational Resilience, Data Security, IAM, Cloud Security, Application Security, Digital Trust, and Technology Risk. Support clients in developing secure AI and

What We Do: Cybercrime is growing, and more businesses are getting hit by threats that used to target only the biggest organizations. That pushes defenders like us to operate at the highest level, and it deepens our need for good people who want to make a meaningful impact. Founded in 2015 by former NSA cyber operators, Huntress is a remote-first team working to make enterprise-grade cybersecurity accessible to businesses of all sizes. We work closely with security teams and service providers protecting complex environments, often without the time or headcount to handle it all. That’s why we build our technology in-house and back it with a 24/7 human-led Security Operations Center (SOC). As a result, our platform is never disconnected from the experts who manage it, ensuring our customers' protection. Huntress now secures more than 5M endpoints and 16M identities worldwide. Those numbers keep growing because more businesses rely on us to help carry the load and operate with more confidence. Every day, you can see that commitment in how we stand with our customers and how we show up for each other. Reports to: Director, Detection Engineering & Threat Hunting Location: Remote US Compensation Range: $150,000 to $170,000 base plus bonus and equity What You’ll Do: Members of the Huntress DE&TH team wake up every morning with the honor of impeding threat actors through a combination of detection engineering and threat hunting. This team sits alongside our 24x7 Security Operations Center and our Adversary Tactics & Tactical Response function, and plays a pivotal role in detecting threat actors before they can impact our partner environments. As a Senior Detection Engineering and Threat Hunting (DE&TH) Analyst, you should be drawn to the hard problems: detecting stealthy intrusions, managing false positives and false negatives at scale, and uncovering clues that may expose an evolving campaign across Huntress partners. In this role, you will turn