The Security Engineering team at Chainalysis is dedicated to embedding robust security practices and technologies into the core of our platforms and products. Our mission is to proactively defend and secure our services, collaborating closely with various technical teams to implement a security-first approach in all aspects of development, deployment, and operations. Our team leads the development and integration of advanced security tools, compliance protocols, and incident response mechanisms to ensure our platform remains resilient against evolving threats. As a Senior Security Engineer at Chainalysis, you will work closely with the Platform Services team to ensure that security is foundational to our engineering infrastructure. This role blends platform engineering expertise with a strong security focus, making you a critical contributor to building, managing, and securing the core infrastructure that supports our products. You will partner with the Platform Services team to enhance and secure Kubernetes clusters, manage AWS cloud systems, and drive the evolution of our infrastructure with a security-first approach. In this role, you’ll: Collaborate with our development, operations, and security teams, integrating secure practices into our CI/CD pipelines. Enhance the security posture of the organization through the development and deployment of security improvements across various platforms including Linux, Kubernetes, and AWS. Collaborate closely with the Platform team to prioritize daily tasks and contribute to Engineering initiatives, utilizing technologies like Python and Terraform to implement security controls and configurations to AWS, Kubernetes and other systems. Manage internal tooling and operations with a focus on maintaining cloud networks, firewalls, and security best practices, while also having the autonomy to make administrative decisions within the scope of the Security department's alignment. We’re looking for candidates who have: Strong experience in designing, deploying, and managing secure cloud infrastructures using Kubernetes and Terraform Excellent communication skills, both verbal and written, for effective collaboration with cross-functional teams. Proficient in Linux system administration, with skills in patching, package upgrades, and securing Linux environments to maintain system integrity. Extensive experience with AWS cloud services and a deep understanding of cloud architectures, deployments, and security practices. Skilled in software engineering with a strong grasp of 1 or more languages and object-oriented design principles. Preferred experience with Python or Java. Expertise in using Terraform for infrastructure as code, adept at automating cloud service deployments and maintaining scalable, secure infrastructures. Strong experience with Kubernetes, including deploying and managing containerized applications, and orchestrating their scaling and management. Thorough knowledge of cloud network security protocols, including experience in setting up and managing cloud firewalls, CloudFlare configurations, and securing cloud networks. Independent decision-making skills with the authority to implement security changes, requiring alignment with overarching security policies while maintaining autonomy in daily operations. Nice to have experience: Experience with Kafka and securing real-time data processing capabilities Experience working in Blockchain or Crypto technologies Technologies we use: Coding Languages: Java, Python, and Javascript IaC: Terraform Cloud: AWS, GCP, Cloudflare CI/CD Pipeline: GitHub, GitHub Actions, Jenkins APIs: REST APIs About Chainalysis Blockchain technology is powering a growing wave of innovation. Businesses and governments around the world are using blockchains to make banking more efficient, connect with their customers, and investigate criminal cases. As adoption of blockchain technology grows, more and more organizations seek access to all this ecosystem has to offer. That’s where Chainalysis comes in. We provide complete knowledge of what’s happening on blockchains through our data, services, and solutions. With Chainalysis, organizations can navigate blockchains safely and with confidence. You belong here. At Chainalysis, we believe that diversity of experience and thought makes us stronger. With both customers and employees around the world, we are committed to ensuring our team reflects the unique communities around us. Some of the ways we’re ensuring we keep learning are an internal Diversity Committee, Days of Reflection throughout the year including International Women’s Day, Harvey Milk Day, World Humanitarian Day, and UN International Migrants Day, and a commitment to continue revisiting and reevaluating our diversity culture. We encourage applicants across any race, ethnicity, gender/gender expression, age, spirituality, ability, experience and more. If you need any accommodations to make our interview process more accessible to you due to a disability, don't hesitate to let us know. You can learn more here. We can’t wait to meet you.