Senior Backend Engineer - Security

Who We AreDigiCert is a global leader in intelligent trust, dedicated to safeguarding the digital realm by ensuring security, privacy, and authenticity in every interaction. Our innovative AI-powered DigiCert ONE platform integrates PKI, DNS, and certificate lifecycle management, protecting infrastructure, software, devices, messages, and AI entities. Join over 100,000 organizations, including 90% of the Fortune 500, that rely on DigiCert to counteract today's threats and prepare for a quantum-safe future at www.digicert.com. Job SummaryAt DigiCert, we are constructing the trust foundation for an agentic future. As AI agents evolve from basic chatbots to complex autonomous systems with access to sensitive enterprise data, we recognize the urgent need for standardized Identity, Authentication, and Governance protocols. You will play a crucial role in developing the core security infrastructure that defines agent identification and control. Our vision is to establish a "Zero Trust" architecture for AI—ensuring every action an agent performs is cryptographically verifiable, authorized, and secure. Your contributions will help shape our technical culture, influence our technology stack, and scale a platform that will fortify the next generation of enterprise AI. What You Will DoCollaborate with a team of industry-leading cryptographers, AI/ML innovators, cloud infrastructure specialists, and security engineers to redefine the future of secure digital interactions.Design and build the Identity Foundation: Create and manage a cryptographically secure identity system that acts as the trusted source of truth for agent interactions.

Join Crusoe Energy as a Senior Backend Tooling Software Engineer and play a pivotal role in enhancing our backend systems that support our innovative energy solutions. You will be responsible for designing, implementing, and maintaining scalable backend tooling solutions that cater to our growing infrastructure needs.Your expertise will help us streamline our operations, optimize workflows, and improve performance across our engineering teams. If you are passionate about backend engineering and enjoy tackling complex challenges, we invite you to apply and contribute to our mission of transforming energy use.

Join Us in Shaping Cybersecurity!Illumio stands at the forefront of ransomware and breach containment, revolutionizing the way organizations tackle cyber threats and maintain operational resilience. Our breach containment platform, powered by the Illumio AI Security Graph, effectively identifies and mitigates threats across hybrid multi-cloud environments, halting the spread of attacks before they escalate into significant issues.As an industry-recognized Leader in the Forrester Wave™ for Microsegmentation, Illumio empowers Zero Trust strategies, enhancing cyber resilience for the infrastructures and organizations that underpin global operations.Work Arrangement: 4 days in-office at our Sunnyvale, CA Headquarters.Our Vision:Our Engineering team is at the helm of cybersecurity's future. We cultivate a culture driven by visionary leadership, autonomy, and ownership, fostering innovation in the fast-paced cybersecurity landscape.In your role as a Senior Product Security Engineer, you will be pivotal in enhancing the security framework of our products throughout their lifecycle. Collaborating closely with Engineering, Product Management, and various stakeholders, you will design secure architectures, assess intricate systems, conduct hands-on security testing, and implement scalable security automation across the organization.This position demands a robust technical background, exceptional written and verbal communication skills, and the ability to persuade engineering teams to embrace secure-by-design methodologies. You will work autonomously, applying sound judgment to address diverse challenges. Additionally, you will spearhead long-term security maturity initiatives, significantly enhancing our security posture.Your Contributions:Security Architecture & DesignOversee security architecture and design evaluations for prototypes, components, and new product features in distributed cloud environments.Create and manage threat models to proactively pinpoint threats, misuses, and residual risks.Offer security consulting for emerging technologies, including AI/ML, to define security requirements and establish design frameworks.Draft and uphold product security policies, standards, and architectural guidelines.

Illumio works to contain ransomware and breaches, helping organizations strengthen defenses and maintain operational resilience. The company’s AI Security Graph drives a breach containment platform that detects and blocks threats across hybrid multi-cloud setups. This approach aims to prevent attacks from escalating into major incidents. Illumio has been named a Leader in the Forrester Wave™ for Microsegmentation and supports businesses in adopting a Zero Trust security model to protect essential systems. Location and On-Site Requirement This Senior Cloud Security Engineer position is based at Illumio’s headquarters in Sunnyvale, California. The role requires working on-site five days per week. Engineering Culture Illumio’s engineering team values leadership, autonomy, and ownership. Team members collaborate to tackle the challenges of modern cybersecurity, working with a technology stack that covers multiple operating systems, distributed applications, and advanced UI and visualization tools. The group welcomes diverse backgrounds and perspectives, focusing on building strong products and encouraging innovation in response to global security needs. What You Will Do Develop containerized microservices for a distributed, multi-tenant system that processes data and real-time events, as well as network telemetry from several public clouds. These services give customers insights, visibility, and security recommendations to help reduce cloud risks. Design service architectures, present and defend technical concepts to peers, and deliver reliable implementations. Mentor junior engineers, new graduates, and interns to help them grow and integrate into the team. Write code primarily in Go and work with data pipelines using SQL or similar interfaces. The infrastructure platform is built on Kubernetes. Applicants with different programming backgrounds who are eager to learn are encouraged to apply. Take ownership of key features and subsystems, managing the full software development lifecycle from clarifying requirements through deployment and user adoption.

We are seeking a highly skilled Senior Backend/Java Engineer to join our dynamic team at Mindlance in Sunnyvale. The ideal candidate will possess robust Java/J2EE expertise and a thorough understanding of both Oracle and NoSQL databases. You should have between 5 to 10 years of experience working in a scalable, multi-threaded server-side environment, along with 2 to 5 years of experience specifically with databases. A self-starter mentality is essential, as is the ability to thrive in a fast-paced, ever-evolving environment. You will be expected to take ownership of your projects and deliver high-quality results. Familiarity with Enterprise Linux is a must, as is hands-on experience with Java. Experience in the AppleCare domain is a plus.

Join Us in the Fight Against Cyber Threats!At Illumio, we are pioneers in ransomware and breach containment, transforming the way organizations tackle cyberattacks while fostering operational resilience. Our advanced Illumio AI Security Graph enables our breach containment platform to swiftly identify and neutralize threats across hybrid multi-cloud environments, preventing potential disasters before they escalate.As a recognized Leader in the Forrester Wave™ for Microsegmentation, we empower Zero Trust principles, enhancing the cyber resilience of the infrastructure, systems, and organizations that keep the world functioning.Our VisionOur Engineering team thrives on innovative leadership, autonomy, and ownership, cultivating a vibrant synergy that propels us forward in the dynamic cybersecurity landscape.By joining our team, you will contribute to the leader in Zero Trust Segmentation. You will work with an advanced technology stack that encompasses diverse operating systems, distributed applications, and sophisticated UI/visualization tools.Together, we are shaping the future of cybersecurity, continuously developing world-class products driven by a diverse team committed to innovation amidst unprecedented cybersecurity threats.Your Contributions:Develop and maintain containerized microservices and their components for a distributed multi-tenant system that processes data and real-time telemetry from various public clouds, providing customers with insights and security recommendations to mitigate cloud risks.Mentor junior engineers, new graduates, and interns, guiding them in their professional growth and integration into the team.Primarily write code in Java utilizing the Spring Boot framework, while engaging with data pipelines through Kafka, SQL, or similar interfaces.Leverage Kubernetes for service infrastructure; we welcome individuals from diverse technological backgrounds eager to learn.Take ownership of critical features and subsystems, managing the complete software development lifecycle from requirement clarification to successful deployment and customer utilization.Oversee operational aspects of the system, actively addressing challenges to ensure optimal performance.

Onwards Together!Illumio stands at the forefront of ransomware and breach containment, revolutionizing how organizations manage cyber threats and establish operational resilience. Our innovative breach containment platform, powered by the Illumio AI Security Graph, effectively identifies and mitigates risks across hybrid multi-cloud environments, halting the escalation of attacks before they escalate into critical incidents.As a recognized leader in the Forrester Wave™ for Microsegmentation, we empower businesses to adopt a Zero Trust framework, enhancing their cyber resilience across infrastructures and systems that are vital to global operations.Work Environment:This position requires on-site presence five days a week at our Sunnyvale, CA headquarters.Our Team's Vision:Our engineering team embodies a culture fueled by visionary leadership, autonomy, and ownership, fostering a collaborative synergy that propels us forward in the dynamic field of cybersecurity.As a member of our team, you will contribute to the leader in Zero Trust Segmentation, working with a cutting-edge technology stack that encompasses operating systems, distributed applications, and advanced UI/visualization tools.Together, we are shaping the future of cybersecurity and developing world-class products, driven by diverse perspectives and a shared commitment to innovation during unprecedented times of cyber threats.Your Impact:Develop containerized microservices for a distributed, multi-tenant system that processes data, real-time events, and network telemetry from various public clouds to provide customers with actionable insights, visibility, and security recommendations to minimize cloud risks.Design your services, meticulously detail your architecture, advocate for your design decisions among peers, and deliver robust implementations.Mentor junior engineers, new graduates, and interns, fostering their development into productive team members.Primarily write code in Go and engage with data pipelines utilizing SQL or similar interfaces, leveraging Kubernetes for service infrastructure. We welcome candidates with diverse programming backgrounds and a strong desire to learn.Take ownership of key features and subsystems, managing the complete software development lifecycle from requirement clarification to successful deployment and utilization by customers.

The Senior Security Engineer - PKI & Secrets role at CoreWeave sits within the Security Foundations team. This team is responsible for protecting the CoreWeave Cloud, covering everything from data centers and GPU fleets to the platform layers that support customer AI workloads. The PKI & Secrets group manages the cryptographic infrastructure that ensures CoreWeave’s data and systems remain confidential, authentic, and tamper-resistant. Areas of focus include public key infrastructure (PKI), secrets management, hardware security modules (HSMs), key management, and code signing. This position involves close collaboration with teams across the company to deliver cryptographic services that meet high standards for security, reliability, and scalability. What you will do Design, implement, and maintain PKI infrastructure, including certificate authority (CA) hierarchies, issuance policies, certificate lifecycle management, and trust distribution for both Kubernetes clusters and bare-metal hosts. Manage and improve secrets management platforms, focusing on access policies, secret lifecycle governance, and integration using tools such as External Secrets Operator and cert-manager. Operate and scale HSM infrastructure, handling PKCS#11 integration, key ceremony procedures, and high-availability designs to support certificate authorities and signing services. Contribute to the development of key management systems and related security protocols. Locations This position is available in Livingston, NJ; New York, NY; Sunnyvale, CA; Bellevue, WA; and San Francisco, CA.

Primary Function of PositionAs a Senior Software Engineer specializing in Product Security, you will play a pivotal role in bolstering Intuitive's Product Cybersecurity organization. Your efforts will enhance the security posture of our products, infrastructure, and services throughout their lifecycle. This position requires you to design and implement innovative security features and mitigations while supporting the deployment of infrastructure, with a key focus on manufacturing and supply chain security. You will collaborate with various teams and product groups to ensure that our products are of the highest quality and comply with regulatory and organizational standards in a dynamic environment.Essential Job DutiesDesign, develop, and implement robust product security features, mitigations, and tools.Respond to infrastructure-related escalations, diagnose issues, and deploy effective solutions.Conduct comprehensive security reviews, including architecture reviews, code reviews, and vulnerability assessments.Develop and maintain comprehensive security policies, processes, procedures, and documentation such as requirements, test reports, risk analyses, and standard operating procedures.Collaborate with cross-functional teams and third-party vendors to address security concerns and ensure compliance with relevant security laws and regulations.Drive continuous improvement of security processes, policies, and risk mitigation strategies.Prepare and deliver real-time security status updates and reports to key stakeholders.Stay informed on evolving security threats, technologies, and best practices through both formal and self-directed learning.

About Applied IntuitionApplied Intuition, Inc. is at the forefront of advancing physical AI technology. Established in 2017, the company has rapidly grown to a valuation of $15 billion, leading the way in developing the digital infrastructure essential for integrating intelligence into every moving machine globally. Our services cater to diverse sectors including automotive, defense, trucking, construction, mining, and agriculture, focusing on three pivotal areas: tools and infrastructure, operating systems, and autonomy. With eighteen of the top twenty global automakers and the U.S. military among our clients, our solutions are trusted to deliver reliable physical intelligence. Headquartered in Sunnyvale, California, we also have offices in Washington, D.C.; San Diego; Ft. Walton Beach, Florida; Ann Arbor, Michigan; London; Stuttgart; Munich; Stockholm; Bangalore; Seoul; and Tokyo. Discover more at applied.co.We operate primarily in-office, expecting our team to work from our Applied Intuition office five days a week. However, we value flexibility and trust our employees to manage their schedules responsibly, which may include occasional remote work, starting the day with morning meetings from home, or leaving early for family commitments.About the RoleAs a Senior Backend Software Engineer on the Remote Assistance team, you will play a pivotal role in architecting, developing, and maintaining the foundational services and infrastructure that empower our remote assistance platform. Your responsibilities will encompass designing APIs, data pipelines, and backend systems adept at managing real-time data streaming, command processing, and facilitating communication between autonomous vehicles and human operator workstations. This impactful position will be instrumental in realizing the future of autonomous trucking by ensuring our backend systems are both reliable and scalable.Your Responsibilities Include:Designing, developing, and deploying scalable, low-latency backend services for remote assistance session management and real-time data streaming.Architecting and implementing the cloud infrastructure for remote assistance, utilizing technologies such as protobuf and gRPC across multiple AWS regions.

Are you an innovative software engineer with a passion for backend development? Join our dynamic team at Walmart Inc. as a Senior Software Engineer specializing in Backend Java. In this role, you will leverage your expertise to design, develop, and maintain scalable applications that drive our corporate technology initiatives.Your responsibilities will include collaborating with cross-functional teams to enhance system performance, implementing best practices in software development, and mentoring junior engineers. If you are looking to make a significant impact in a fast-paced environment, this is the opportunity for you!

CoreWeave is seeking a Security Engineering Manager to lead the Platform Security team. This position is based in Livingston, NJ, New York, NY, Sunnyvale, CA, Bellevue, WA, or San Francisco, CA. The team’s mission is to embed security into CoreWeave’s Kubernetes-based platform and public cloud environments, supporting high-performance infrastructure for AI and machine learning workloads. Role overview This manager will oversee and expand the Platform Security engineering team, reporting to the Senior Director of Security Foundations. The focus is on hands-on leadership and technical execution, with an emphasis on building and implementing security controls rather than policy development. The role requires close collaboration with Infrastructure, Platform Engineering, Site Reliability Engineering, and other security teams to ensure security measures keep pace with business growth and evolving needs. What you will do Lead and grow the Platform Security engineering team. Integrate security into Kubernetes infrastructure and public cloud platforms such as AWS, GCP, and Azure. Define and execute strategies for cloud security posture, workload isolation, platform guardrails, image integrity, and multi-cloud security. Develop and implement security controls across CoreWeave’s infrastructure. Work closely with other technical teams to align platform security with business needs. The Platform Security team The Platform Security team at CoreWeave engineers systems that enforce security at the infrastructure layer. Their work spans both CoreWeave’s own Kubernetes-based platform and third-party public cloud environments. The team supports GPU-accelerated infrastructure for demanding AI and machine learning workloads, ensuring that both customer and internal services remain secure as CoreWeave’s global presence expands.

Your ContributionBecome an integral part of a dynamic team focused on developing cutting-edge cybersecurity solutions from inception. With guidance from seasoned industry experts, you will have the unique opportunity to architect, build, and deliver highly impactful products that will shape the future of cybersecurity. This is a chance to elevate your career and skill set alongside a company poised for growth.Position SummaryAs a Backend Engineer, your primary responsibility will be to design and implement the management layer for a distributed embedded system. This involves creating the policy structure, ensuring reliable configuration storage, managing secrets, and developing engines that facilitate these functions. Your work will play a crucial role in building a fast, resilient system that directly contributes to the product line's success.

Illumio builds cybersecurity solutions that help organizations contain ransomware and breaches, with a focus on maintaining operational resilience. The company’s AI Security Graph powers a platform that detects and neutralizes threats across hybrid and multi-cloud environments. Illumio’s approach is rooted in Zero Trust principles and supports the protection of critical systems worldwide. This Senior Engineer - Container Security position is based on-site at Illumio’s Sunnyvale, California headquarters. The role requires a full-time presence in the office, five days per week. What you will do Implement Zero Trust Segmentation at the application and pod level to identify and block attack paths in containerized environments. Work with leading container platforms such as Kubernetes, Istio, OpenShift, AKS, EKS, and GKE. Design and develop key features and subsystems, managing work from initial concept through peer review. Deliver solutions that are scalable, stable, secure, and maintainable to protect enterprise infrastructure. Mentor junior engineers, recent graduates, and interns, supporting their growth and integration into the team. Collaborate with field teams and major customers to refine and improve the product. Engineering culture The engineering team at Illumio values leadership, autonomy, and ownership. Team members work together to advance Zero Trust Segmentation, drawing on experience with operating systems, distributed applications, and advanced UI and visualization tools. The group brings together a range of perspectives and a shared commitment to building strong cybersecurity products.

About Applied IntuitionApplied Intuition, Inc. is at the forefront of advancing physical AI. Established in 2017 and currently valued at $15 billion, this Silicon Valley powerhouse is dedicated to developing the digital infrastructure essential for integrating intelligence into every moving machine globally. We cater to diverse sectors, including automotive, defense, trucking, construction, mining, and agriculture, focusing on three foundational areas: tools and infrastructure, operating systems, and autonomy. Our solutions are trusted by eighteen of the top twenty global automakers and the United States military alongside its allies, ensuring the delivery of physical intelligence. With headquarters in Sunnyvale, California, and additional offices in Washington, D.C.; San Diego; Ft. Walton Beach, Florida; Ann Arbor, Michigan; London; Stuttgart; Munich; Stockholm; Bangalore; Seoul; and Tokyo, we invite you to explore more at applied.co.We prioritize in-office collaboration and expect our employees to work primarily from their Applied Intuition office five days a week. However, we also value flexibility and empower our team to manage their schedules responsibly. This may include occasional remote work, starting the day with morning meetings from home prior to coming into the office, or leaving early when necessary to accommodate family commitments.About the RoleWe are on the lookout for a versatile Product Security Engineer who will play a pivotal role in embedding security into Applied Intuition's product design and development process. Collaborating closely with cross-functional engineering teams, you will be instrumental in securing our application platform.At Applied Intuition, you will:Analyze our applications and system architectures from inception to release. Proactively identify security vulnerabilities and integrate robust security controls while conducting architecture reviews and threat modeling.Conduct regular security assessments and leverage AI-assisted testing on our products and systems to systematically pinpoint and mitigate vulnerabilities before they can be exploited.Assist in evolving our vulnerability management program and drive risk contextualization.

About the TeamAt Taara, born from X, Google's Moonshot Factory, we are dedicated to connecting billions of individuals who currently lack access to affordable and reliable internet. Our innovative approach utilizes light to deliver faster and more economical connectivity solutions. Join us in our mission to bridge the digital divide and illuminate the future through groundbreaking wireless optical communication and photonics chip technologies.About the RoleAs a Senior Backend Software Engineer, Cloud & Infrastructure, you will serve as the architect of our global network's core operations. While our hardware establishes the connections, your software will oversee and optimize them. You will be responsible for designing and scaling distributed systems, APIs, and cloud-native infrastructures that monitor and control our wireless optical terminals deployed in the field.We are looking for a versatile candidate who excels in building dependable and scalable backend systems. You should be comfortable developing high-performance Go services, architecting extensive data pipelines for telemetry, and automating cloud infrastructures.Your Impact:Scale the Control Plane: Design and implement a cloud-native backend that manages thousands of optical terminals across the globe.Architect Telemetry Pipelines: Create robust data ingestion and processing systems to handle real-time performance metrics from our optical terminals.Bridge Edge and Cloud: Collaborate with hardware engineers to establish secure and efficient communication between our devices and the cloud.Automate Everything: Spearhead our Infrastructure as Code (IaC) strategy to ensure resilient and reproducible global deployments.Drive Observability: Develop monitoring tools and dashboards to empower our Network Operations Center (NOC) to troubleshoot complex optical links swiftly.

Join our dynamic team at Sonsoft Inc. as an Application Security Engineer! We are looking for a skilled professional to enhance our software security practices, ensuring robust protection against vulnerabilities. In this role, you will collaborate closely with development teams to implement security measures throughout the software development lifecycle.Your expertise will help us identify potential threats, conduct security assessments, and develop secure coding guidelines. This is an excellent opportunity to leverage your skills in a fast-paced environment while contributing to the overall security posture of our applications.

Join Illumio as a Senior Software Engineer specializing in Cloud Security, where you will play a pivotal role in shaping our security solutions. In this position, you will leverage your expertise in designing and implementing robust cloud security frameworks, ensuring the integrity and confidentiality of our clients' data. You will work collaboratively with cross-functional teams to innovate and enhance our security products, addressing the evolving landscape of cyber threats.

About CeribellCeribell is at the forefront of medical technology, dedicated to revolutionizing the diagnosis and management of patients with serious neurological conditions. Our innovative Ceribell System is a cutting-edge, point-of-care electroencephalography (EEG) platform that meets the critical needs of patients in acute care settings. Already in use at hundreds of community hospitals, large academic institutions, and major integrated delivery networks across the nation, our team shares a collective mission to enhance critical care with our rapid seizure detection technology. Join us in making a difference!Position Overview:We are seeking a talented Senior Software Engineer with a strong backend focus to join our dynamic team in developing the next generation of EEG web applications that cater to vital medical use cases. In this role, you will be instrumental in designing, maintaining, and enhancing the backend systems for our EEG Portal web application, which is essential for healthcare providers, researchers, and clinical teams to access, monitor, and analyze EEG data. You will collaborate closely with fellow engineers, product managers, and stakeholders to ensure that our backend systems are robust, secure, and scalable within a medical environment.Key Responsibilities:Backend Development & Maintenance:Design, develop, and maintain backend systems to support the EEG Portal application, ensuring dependable performance and adherence to healthcare standards.Implement new features and enhancements to meet clinical and research demands, prioritizing efficiency and scalability.Troubleshoot, debug, and optimize backend systems to guarantee maximum uptime and reliability for users.Database Management:Write optimized database queries and execute data migration strategies.Monitor and fine-tune database performance, including indexing, replication, and backup processes.API Development & Integration:Develop and maintain RESTful APIs that interact with the frontend and other systems.Ensure APIs are secure, well-documented, and capable of handling large volumes of sensitive medical data.Integrate third-party services and platforms as needed to enhance functionality.Ensure backend services comply with regulatory standards, including data encryption, authentication, and auditing.

About Applied IntuitionApplied Intuition, Inc. is at the forefront of transforming physical AI. Since our inception in 2017, we have reached a valuation of $15 billion, establishing ourselves in Silicon Valley as a leader in developing the digital infrastructure required to infuse intelligence into every moving machine globally. We cater to various industries including automotive, defense, trucking, construction, mining, and agriculture through our three primary areas: tools and infrastructure, operating systems, and autonomy. Our solutions are trusted by 18 of the world's top 20 automakers, as well as the United States military and its allies, ensuring the delivery of physical intelligence. We are headquartered in Sunnyvale, California, with additional offices in Washington, D.C.; San Diego; Ft. Walton Beach, Florida; Ann Arbor, Michigan; London; Stuttgart; Munich; Stockholm; Bangalore; Seoul; and Tokyo. Discover more at applied.co.We operate primarily in-office, expecting employees to work from the Applied Intuition office five days a week. However, we value flexibility and trust our team to manage their schedules responsibly. This may involve occasional remote work, beginning the day with morning meetings from home before heading into the office, or leaving early for family commitments.About the RoleWe are on the lookout for a dynamic Corporate Security Engineer to spearhead our efforts in safeguarding our personnel, endpoints, networks, collaboration platforms, and enterprise data. You will collaborate closely with the IT Infrastructure, Detection & Response, and GRC teams to ensure that our security measures are effective, scalable, and aligned with our business objectives. In this position, you will define the strategic roadmap, make architectural decisions, and represent Corporate Security throughout the organization.Key Responsibilities:Define the value proposition and service model for corporate security capabilities, encompassing network hardening, monitoring, infrastructure hardening, and data security posture.Oversee and optimize email security platforms to guard against phishing, malware, business email compromise, and advanced threats.