Role Description Join a small, specialized team building ClickHouse's next frontier — secure, highly scalable database platforms for government and enterprise clients across cloud, hybrid, and on-prem environments. Our team is looking for exceptional engineers to design, develop, deploy, and secure a ClickHouse Cloud database platform across a variety of regulated and mission-critical environments. This is an exciting opportunity to architect solutions for high-performance, highly regulated systems, including environments with restricted or no internet connectivity. This role involves architecting secure, resilient, and scalable solutions tailored for sensitive workloads. You will work closely with Security, Dataplane, ClickHouse Core, and Infrastructure teams to ensure compliance with NIST, FedRAMP, Protected B, IRAP, and other security frameworks, while enabling our elastic, limitless scale, high-performance, server-less ClickHouse Cloud capabilities across cloud, hybrid, and on-prem deployments. What will you do? - Design and develop a highly available, scalable, and secure ClickHouse Cloud platform for regulated and mission-critical environments. - Build innovative deployment automation across cloud, hybrid, and on-prem systems, including disconnected environments when needed. - Work closely with existing Dataplane and Core teams to ensure software parity with existing cloud infrastructure. - Solve unique scaling, reliability, and performance challenges in regulated environments. - Design and deploy ClickHouse Cloud on Kubernetes and containerized environments ensuring high availability, replication, and backup. - Develop and maintain Helm charts, operators, and Kubernetes manifests for database management. - Implement repeatable automation to build, scale, and troubleshoot infrastructure components across diverse deployment models. - Optimize ClickHouse Cloud database performance and storage architecture for on-prem, hybrid, and government cloud deployments. - Integrate secure authentication, encryption, and access control mechanisms. - Develop and maintain technical documentation for system architecture, security, and compliance audits. - Troubleshoot and resolve database performance, security, and operational issues. - Automate deployments and lifecycle management using Terraform, Ansible, or CI/CD pipelines. Qualifications - Permanent Resident and/or U.S. Citizenship required (per U.S. federal contract requirements). - 6+ years of relevant software development industry experience building and operating scalable, fault-tolerant, distributed systems. - Experience with ClickHouse or relational (PostgreSQL, MySQL) and NoSQL (MongoDB, Cassandra) databases. - Proficiency with Kubernetes tools (Helm, Kustomize, operators, Istio, service mesh). - Experience with secure, regulated, or restricted network environments (including airgapped architectures) is a strong plus. - Experience with containerized deployments (Docker, Kubernetes, OpenShift), ideally in regulated or enterprise environments. - Experience with cloud platforms (AWS, Azure, GCP, AWS GovCloud, Azure Government, or on-prem equivalents). - Proficiency in programming/scripting languages (Go or Python) for automation and integration. - Excellent communication skills and the ability to work well within a team and across engineering teams. - Strong problem solver with solid production debugging skills. - Passionate about efficiency, availability, scalability, and data governance. - Thrives in a fast-paced environment and sees themselves as a partner with the business with the shared goal of moving the business forward. - High level of responsibility, ownership, and accountability. Requirements - The typical starting salary for this role in the US is $141,000 — $208,000 USD. - The typical starting salary for this role in US Premium Markets is $157,000 — $230,000 USD. - Compensation may vary based on education, qualifications, certifications, experience, skills, location, performance, and business needs. - If you have any questions or comments about compensation as a candidate, please get in touch with us at paytransparency@clickhouse.com. Benefits - Flexible work environment - ClickHouse is a globally distributed company and remote-friendly. We currently operate in over 20 countries. - Healthcare - Employer contributions towards your healthcare. - Equity in the company - Every new team member who joins our company receives stock options. - Time off - Flexible time off in the US, generous entitlement in other countries. - A $500 Home office setup if you’re a remote employee. - Global Gatherings - Opportunities to engage with colleagues at company-wide offsites. - Culture - As part of a rapidly scaling startup, you will be instrumental in shaping our culture.

• Design deploy maintain optimize and automate scalable secure and resilient cloud infrastructure and solutions across Azure GCP and AWS • Manage backup and disaster recovery strategies across cloud platforms • Implement and maintain robust cloud security controls aligned with industry standards CIS NIST and ISO 27001 • Implement and maintain Infrastructure as Code cloud automation and CI CD driven deployments • Support cloud automation initiatives including infrastructure automation integrations operational workflows and platform stability improvements • Enable AI and intelligent automation use cases in alignment with established governance and security standards • Troubleshoot cloud platform issues support incident resolution and maintain technical documentation and runbooks • Help define and enforce cloud governance standards including management groups subscriptions Azure Policy RBAC naming conventions tagging and cost controls • Implement automation in ServiceDesk identity and other enterprise platforms to drive consistent efficient and rapid experiences • Engage with IT and functional stakeholders to define business processes align them to appropriate technology solutions and represent Definium technology interests on initiatives with significant technology impact • Translate functional and technical requirements into solution architecture and provide build and deployment guidance to software developers • Design scalable supportable systems by selecting technology stacks that can be supported by a broad ecosystem of providers and technically skilled Definium staff • Identify and evaluate technology partners and maintain relationships with strategic vendors to stay informed of evolving capabilities and risks • Stay current on leading and emerging technologies and evaluate fit against financial security and operational requirements • Cross train and mentor junior engineers

Role Description Serve as a cloud architecture leader, providing guidance and mentorship to team members, while supporting a DoD mission program. Design and deliver secure, compliant workloads within a platform-managed hub-and-spoke environment across AWS GovCloud and Azure Government. - Architect and deliver secure, scalable AWS‑centric solutions (with multi‑cloud fluency across Azure Government/GCP) as a spoke workload team operating inside a platform‑managed hub‑and‑spoke environment. - Be well‑versed in platform management constructs (network hub, identity, operations, DevOps, shared services) to facilitate design discussions and articulate workload requirements to platform owners/providers. - Operate as a liaison between mission teams, leadership, and platform providers, ensuring workload strategies align with programmatic, operational, and compliance goals. - Translate DoD operational constraints (Cloud Computing SRG impact levels, RMF/ATO, DISA STIGs) into practical workload architectures and deployment patterns that inherit and align with platform guardrails. Qualifications - Experience in cloud architecture and deployment. - Strong understanding of DoD compliance and security engineering. - Proficiency in AWS and Azure platforms. - Ability to mentor and manage technical teams. - Experience with IaC tools like Terraform, CloudFormation, Bicep, or CDK. Requirements - Define and communicate workload requirements for routing, firewall/inspection, DNS, identity trust, logging/telemetry, secrets, and egress. - Manage cross-functional teams and discussions, ensuring alignment between workload needs and platform provisioning. - Drive the creation of workload reference architectures and IaC templates ensuring alignment with platform guardrails and program security policies. - Lead the team in implementing secure network zoning and service exposure. - Design CI/CD pipelines with security/compliance gates. - Map workload data and mission needs to SRG IL2–IL6 and engineer control implementations. - Provide team guidance on applying Zero Trust principles. - Lead collaboration efforts with external vendors and industry solution providers. - Define and manage workload resilience strategies. - Guide team members in implementing and monitoring FinOps practices for ongoing cost control. Benefits - Remote work with limited travel. - Opportunities for professional development and mentorship. - Competitive salary and benefits package.

• Manage and maintain Azure Cloud operations, ensuring high availability and reliability. • Develop, maintain, and optimize Terraform code for infrastructure provisioning. • Design, implement, and monitor GitLab CI/CD pipelines for deploying Terraform code to Azure. • Collaborate with cross-functional teams to ensure seamless integration and automation of cloud infrastructure. • Continuously improve system performance and scalability through automation and process optimization. • Troubleshoot and resolve infrastructure and deployment-related issues effectively. • Stay updated with industry best practices and emerging technologies in DevOps and Cloud Engineering.