Senior Security Engineer, Platform Security

About Mach Industries Founded in 2023, Mach Industries is a rapidly growing defense technology company focused on developing next-generation autonomous defense platforms. At the core of our mission is the commitment to delivering scalable, decentralized defense systems that enhance the strategic capabilities of the United States and its allies. With a workforce of approximately 350 employees, we operate with startup agility and ambition. Our vision is to redefine the future of warfare through cutting-edge manufacturing, innovation at speed, and unwavering focus on national security. We are dedicated to solving the next generation of warfare with lethal systems that deter kinetic conflict and protect global security. The Role We are seeking a Senior Platform Security Engineer to lead security efforts across our growing Unmanned Aircraft Systems (UAS) portfolio. This role focuses on securing both hardware and increasingly software-driven systems, including autonomy platforms, command-and-control (C2) applications, APIs, cloud infrastructure, and embedded devices. As our products scale and become more connected, the attack surface expands across edge, air, and cloud environments. This role ensures security is built into the full system lifecycle—from hardware and firmware to applications and distributed services. Key Responsibilities Lead end-to-end product security across UAS platforms, including embedded systems, flight software, APIs, backend services, and cloud infrastructure. Design and implement secure architectures covering device identity, authentication, authorization, and data protection. Perform security assessments across software, firmware, and hardware, including application testing, code review, and adversarial analysis. Build and integrate security into CI/CD pipelines, including automated testing, scanning, and policy enforcement. Partner with software, hardware, and firmware teams to embed security into the development lifecycle. Secure communications

Discord has a highly engaged community of millions of daily active users who use the platform for many different reasons, but there’s one thing that nearly everyone does: play video games. Discord plays a uniquely important role in the future of gaming, and we are focused on making it easier and more fun for people to hang out before, during, and after playing games. More broadly, Discord is about empowering people to find belonging in all kinds of communities, and those people trust us to keep their communications safe. Our Platform Security Engineering team protects the systems we use to create Discord, making the "secure way" the "easy way." We're looking for a Senior Engineer to advance this mission through security expertise, software development, and operational excellence, with a particular focus on identity and access management: who and what can access Discord's systems, how they authenticate, and how access stays scoped to what's actually needed. You'll help identify leveraged opportunities to reduce security risk across Engineering, then design and deliver technical solutions: lovable "paved paths" for managing identities and access, shipping code, configuring cloud infrastructure, and operating services. If you're a security engineer with a deep interest in identity and access management, who's eager to own technically and socially complex projects, and excited to improve security and privacy at Discord, read on! This position is based in our San Francisco office. For this role, the Hiring Manager would like folks to be in the office 1-2 days a week. What you'll do Own software engineering projects end-to-end on a highly autonomous, horizontally integrated team with a lot of leverage. This is a code-forward role! Define what identity means for autonomous agents and other non-human actors at Discord (how they're provisioned, scoped, authenticated, authorized, and audited). As the role of these actors grows, and create primitives to implement that vision.

Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of developers and creators. At Roblox, we’re building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device. We’re on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there. A career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone. As a Senior Cloud Security Engineer, you will define and implement the security strategy and controls across our hybrid and multi-cloud environment. Embedded within the Platform Security team, you will operate with a high degree of autonomy, partnering closely with Infosec and Infrastructure teams to secure our cloud infrastructure. Your architectural decisions will directly impact the security of a global platform. You Will: Create Paved Roads: Build innovative services and tooling that make the secure path the easiest path, enabling developers to deploy faster and safer. Engineer Self-Healing Infrastructure: Architect and scale systems that monitor our cloud posture and automatically enforce a self-healing security baseline. Design Secure-by-Default Blueprints: Partner deeply with infrastructure teams to bake threat modeling and secure-by-default patterns into the core DNA of our cloud environments. Implement Effective Guardrails: Deploy organizational security controls that protect our developers without slowing them down. Advance Detections: Write and optimize detections tailored specifically to our footprint. You Have: 4+ years: of relevant professional experience. Experience writing a

Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of developers and creators. At Roblox, we’re building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device. We’re on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there. A career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone. As a Senior Security Software Engineer for Infrastructure Security you will be a part of the Information Security organization and report to the Senior Manager of Infrastructure Security. You will help shape the future of Platform Security at Roblox. We work closely with Production IAM, Network Security, and Cloud Security at Roblox. You Will: Identify security gaps and threats in our cloud and on premise infrastructure, partnering with Governance Risk and Compliance teams to create standards and policies along the way. This will help Roblox meet regulatory and compliance requirements. Harden our infrastructure by introducing secure by default configurations, designs and guardrails for all developers at Roblox. Own and drive solutions that enable Roblox engineers to design, build, and use infrastructure securely at scale. Work closely with other InfoSec teams (AppSec, D&R, GRC, CorpSec, CloudSec, NetSec) and partner with engineering teams across Roblox, specifically the Infrastructure organization, to ensure the secure outcomes of security and product driven initiatives. You Have: 5+ years of experience writing code and/or relevant technical experience. Experience with

As a Cloud Security Engineer you will partner with different stakeholders across the organization to secure our cloud infrastructure. As part of the Platform Security organization we secure the building blocks of Datadog’s applications and infrastructure. We do this by building solutions to solve systemic risks and combine an approach of making the secure path easier and the insecure path harder to secure and accelerate the business. We regularly partner with the most bleeding edge internal products and are working to solve and build solutions to enable our safe usage of AI. We also develop AI based solutions to enable security at scale. We are looking for a Service Mesh and Kubernetes focused security specialist to help round out an incredibly strong infrastructure security focused group. You will rotate through a variety of internal projects and gain deep exposure to Datadog’s infrastructure. At Datadog, we place value in our office culture - the relationships that it builds, the creativity it brings to the table, and the collaboration of being together. We operate as a hybrid workplace to ensure our employees can create a work-life harmony that best fits them. What You’ll Do: Solve our most challenging cloud infrastructure security problems starting with our core building blocks and golden paths. Enable our engineers to build and ship secure solutions quickly. Build and extend Datadog’s Platform Security solutions. Leverage and influence the direction of Datadog’s products to secure our infrastructure, and provide internal feedback that enables our teams to improve the products for ourselves and our customers. Who You Are: You have a BS/MS/PhD in a Computer Science, Engineering or related scientific field or equivalent professional experience. Passionate about advocating for and implementing solutions to complex problems, at-scale, in a large multi-cloud environment. You don’t want to just provide security recommendations, you want to help imple

At Rockstar Games, we create world-class entertainment experiences. Become part of a team working on some of the most rewarding, large-scale creative projects to be found in any entertainment medium - all within an inclusive, highly-motivated environment where you can learn and collaborate with some of the most talented people in the industry. Rockstar is on the lookout for a passionate Senior Security Platform Engineer who is skilled at diving into complex software designs to identify security flaws and vulnerabilities. This is a full-time, in-office position based out of Rockstar’s NYC headquarters in Downtown Manhattan. WHAT WE DO The Rockstar Games Application Security team partners with numerous development teams across the company to incorporate security practices throughout the software development lifecycle. We strive to understand the threat landscape affecting our development studios, the gaming industry, and the world at large to define secure development standards and guidelines to safeguard our business and protect our players. We independently assess our application code and builds through various techniques (static analysis, dynamic analysis, software composition analysis, etc.) to identify potential vulnerabilities and design flaws and work with development teams to remediate. RESPONSIBILITIES Architect and support secure software development lifecycle operations embedded in software development pipelines. Provide technical security guidance to developers, team leads, and producers. Drive remediation efforts behind internally and publicly identified vulnerabilities. REQUIREMENTS 5+ years of experience working in a professional, academic or research environment identifying and remediating security bugs/flaws, assisted by automated pipelines. Knowledge of common web security vulnerabilities (e.g., OWASP Top 10), client-side security landscape, attack techniques and remediation tactics/strategies. Experience implementing and tuning SAST, SCA