Principal Performance Engineer - Database & AI Benchmarking

About ClickHouseRanked among the most innovative and rapidly growing private cloud companies, ClickHouse is proud to be featured on the 2025 Forbes Cloud 100 list. With a robust clientele exceeding 3,000 and an impressive annual recurring revenue (ARR) growth of over 250% year on year, ClickHouse is a leader in real-time analytics, data warehousing, observab…

Join our dynamic team at dev2 as a Senior/Lead Software Engineer specializing in Database Reliability. We are seeking an experienced professional who will ensure the performance, reliability, and availability of our database infrastructure. You will play a crucial role in designing and implementing solutions that enhance our database systems while collaborating closely with cross-functional teams.

Join our dynamic App Core Team as an iOS Engineer at redcare-pharmacy, where you will be at the forefront of developing innovative mobile solutions that enhance the pharmacy experience for our customers. In this role, you will leverage your expertise in iOS development to create robust applications that are user-friendly and efficient.

As a Platform Database Engineer specializing in NoSQL and graph database solutions, you will design, implement, and manage innovative data solutions as part of our central platform.You will assume technical ownership of graph data models and develop complex query patterns to address highly interconnected domains.In this role, you will plan and execute migrations from traditional relational databases or file-based data storage to modern NoSQL and graph databases.Collaboration with backend engineering teams is key to seamlessly integrate our database solutions into existing and new backend services.Your expertise will help evaluate and choose the best NoSQL and graph database technologies tailored for various products and platform use cases.You will ensure the performance, scalability, reliability, and maintainability of our database solutions in a live production environment.Contributing to platform architecture decisions, establishing technical standards, and promoting best practices will be part of your responsibilities.Support product teams by providing guidance, conducting reviews, and engaging in hands-on collaboration.

As a PostgreSQL Platform Database Engineer, you will design, implement, and manage robust PostgreSQL-based database solutions tailored for multi-tenant environments.Take charge of PostgreSQL schema design, enhance performance through tuning, and ensure operational stability.Lead the migration processes from legacy or diverse database systems to PostgreSQL, ensuring smooth transitions.Work in close collaboration with backend engineering teams to seamlessly integrate database solutions into backend services.Establish and uphold standards and best practices for relational data modeling and database operations.Guarantee high availability, effective backup and recovery strategies, and consistent performance of PostgreSQL systems.Contribute to architectural decisions and long-term data strategies for the platform.Provide support and enablement for product teams through reviews, guidance, and hands-on collaboration.

Join Us in Advancing Europe’s Hypersonic Technologies At Hypersonica, we are at the forefront of redefining European defense technology. Our mission is to provide unmatched speed, resilience, and technological independence, setting new benchmarks in the industry. We pride ourselves on being a compact, elite team dedicated to tackling significant challenges and delivering swift solutions. As a Reliability and Safety Engineer, you'll immerse yourself in a dynamic and innovative environment where the potential for growth is limitless. You won’t just fill a position; you’ll actively influence the company’s trajectory. We believe in hiring a select group of extraordinary individuals possessing wide-ranging technical expertise, sound judgment, and the capacity to work independently. We prioritize talent over conventional roles. While this position addresses a critical business need, its evolution will be shaped by your unique contributions. If you've accomplished what others deemed impossible or possess a distinctive skill set that defies traditional boundaries, we encourage you to reach out. Your work here will play a crucial role in enhancing Europe’s technological sovereignty.

CAI Overview:Are You Ready?Established in 1996, CAI has evolved into a leading professional services firm with nearly 800 dedicated professionals across the globe. We specialize in Life Sciences and Mission Critical industries, delivering essential solutions in high-stakes environments. Our commitment to operational readiness and exceptional performance is underpinned by our meticulous methodologies, field-tested processes, and the elite expertise we have cultivated over three decades.Our approach is straightforward, driven by our Purpose:· We strive to be the trusted partner for our clients as they endeavor to create a better working world and enhance the human experience.At CAI, we uphold our Foundational Principles in all aspects of our lives:· We act with integrity.· We support one another.· We contribute to society.· We work towards a sustainable future.We are unwavering in our pursuit of excellence, consistently pushing boundaries and exceeding expectations. From our inception, we have committed to doing what others deem impossible, not just setting industry standards but completely redefining them. We embrace bold thinking and innovative approaches, operating at the intersection of wisdom, technology, and humanity. For us, operational readiness is not merely a target; it is a way of life. We believe that tomorrow demands the best of today. Our relentless efforts, precision, efficiency, and belief in continuous improvement guide us as we look towards the future.FULLY AVAILABLE FOR A 2-YEAR ASSIGNMENT IN GERMANYPosition Summary:As a Reliability Field Engineer, you will play a crucial role in our Operational Readiness team. Your responsibilities will include coordinating, preparing, reviewing, and researching equipment and material databases that enable our teams to recommend optimal maintenance and asset management practices for our clients. If you are passionate about gaining hands-on experience while developing your maintenance and reliability skills, this position is ideal for you.

Role overview Jobgether seeks an Engineering Manager specializing in Site Reliability Engineering to lead a team dedicated to the development and maintenance of essential systems. This role is based in Germany and centers on ensuring the reliability and performance of the company's core infrastructure. What you will do Guide and mentor a team of site reliability engineers. Supervise the stability, scalability, and efficiency of production environments. Champion reliability and performance best practices within the team. Collaborate with other departments to align infrastructure with business objectives and sustain high system availability. Requirements Demonstrated experience managing engineering teams, particularly in site reliability or similar areas. Solid background in designing and supporting reliable, scalable systems. Strong ability to work with both technical and non-technical groups to advance business goals.

N26 is looking for a Site Reliability Engineer to join the Platform Engineering team in Berlin. This role centers on maintaining and improving the reliability, performance, and scalability of core systems. Role overview Work closely with cross-functional teams to support and enhance the platform. The focus is on building solutions that keep systems stable and responsive as the company grows. What you will do Monitor and improve system reliability and uptime Collaborate with other teams to address performance and scalability challenges Contribute to solutions that strengthen the platform’s technical foundation Location This position is based in Berlin.

Join us as an Engineering Manager on our Observability Reliability Engineering Obsession (OREO) team within Platform Engineering.In this role, you will spearhead the Reliability & Observability team, enhancing Doctolib's observability platform to support our rapid service expansion while empowering a top-tier SRE team.Working in our technology team means creating innovative products and features that enhance the experiences of care teams and patients. We operate in agile feature teams, collaborating closely with product, design, and business teams.You will lead a group of Site Reliability Engineers dedicated to defining our observability strategy and ensuring our platform's reliability, debuggability, and scalability. This role combines people management, technical leadership, and strategic planning, emphasizing the development of organizational capabilities in logging, metrics, tracing, and alerting.Your team is also responsible for managing crucial transversal services that facilitate secure, scalable infrastructure management throughout the organization, such as HashiCorp Vault for secrets management and Terraform Enterprise for infrastructure as code.

Site Reliability Engineer Company Overview At Orcrist Technologies, we are pioneering a next-generation data intelligence platform designed to manage petabyte-scale data with lightning-fast query responses. Our innovative solution is based on Kubernetes and is offered as both a B2B SaaS and an on-premise self-hosted option, including air-gapped deployments. We empower clients in defense, law enforcement, and enterprise sectors to translate mission-critical data into actionable insights. Your Role As a Site Reliability Engineer, you will be integral in deploying and managing our data intelligence platform within agency-controlled environments. You will construct and operate secure, highly available Kubernetes clusters, both on-premises and in hybrid architectures. In this role, you will also respond as a forward-deployed SRE during incidents and upgrades, ensuring our systems adhere to strict privacy, audit, and legal evidence standards tailored for law enforcement applications. Key Responsibilities Deploy, install, and manage Kubernetes clusters for our platform in on-prem and hybrid settings. Configure and maintain GitOps workflows, Helm/Kustomize, and artifact registries within restricted networks. Design and lead incident response initiatives for the observability stack (Prometheus, Grafana) and enforce disaster recovery protocols. Enhance system security through network segmentation, mTLS, IAM, and vulnerability remediation. Create compliance documentation, operational runbooks, and train both agency and Orcrist teams on best practices. About You 5+ years of experience in SRE/DevOps, with a focus on on-call ownership and managing production systems. Extensive hands-on experience with Kubernetes (on-prem/hybrid), GitOps (Argo CD/Flux), and infrastructure automation tools (Ansible, Terraform). Strong expertise in observability tools (Prometheus, Grafana, Loki) and complex incident response methodologies. Fluency in both German and English (C1+), authorized to work in Germany, with a willingness to travel (20–30%). Preferred Qualifications In-depth understanding of IT and governance frameworks within law enforcement or the public sector. Relevant certifications such as CKA/CKAD, ISO 27001 Lead Implementer, CISSP, or GDPR Practitioner. Demonstrated experience integrating with essential enterprise systems, including Identity and Access Management (SAML, LDAP), and Security Information and Event Management (SIEM) platforms. Familiarity with digital evidence workflows and contributions to judicial processes. Previous exposure to managing sensitive environments, including air-gapped systems and investigative tools for public safety.

Who We AreHelsing is a pioneering defense AI company dedicated to safeguarding democracies. Our mission is to attain technological leadership, enabling open societies to make sovereign decisions and uphold their ethical standards. As a company, we recognize the profound responsibility that comes with developing and deploying powerful technologies like AI, and we are committed to addressing this responsibility with integrity.Our team consists of driven engineers, AI specialists, and customer-facing program managers who are passionate about solving the most complex and impactful challenges. We embrace a culture of openness and transparency, encouraging healthy debates about the role of technology in defense, its benefits, and its ethical implications.The RoleWe operate primarily in high-security, on-premise environments, and we are seeking a Site Reliability Engineer to support these critical infrastructures. In this role, you will be responsible for the design, implementation, and management of our on-premise Kubernetes infrastructure.We value engineers who exhibit a strong work ethic, prioritize effectively, and excel in teamwork. Clear communication, knowledge sharing, and collaboration are essential to advancing both our team and our mission.The Day-to-DayAs a Site Reliability Engineer, you will design and build cloud-native infrastructure platforms on-premises, focusing on Kubernetes-based solutions that empower our development teams to operate services at scale.You will create robust observability frameworks using tools like Grafana, Prometheus, and distributed tracing to ensure system reliability and performance.You will architect and implement secure, multi-tenant Kubernetes clusters to support our high-security environments.

About ClickHouseHonored in the 2025 Forbes Cloud 100 list, ClickHouse stands out as a leading innovator among rapidly growing private cloud enterprises. With a customer base exceeding 3,000 and an impressive annual recurring revenue growth of over 250 percent, ClickHouse is at the forefront of real-time analytics, data warehousing, observability, and AI workloads.The company’s continuous and accelerating growth was recently underscored by a substantial $400 million Series D funding round. Notable clients such as Capital One, Lovable, Decagon, Polymarket, and Airwallex have either adopted our platform or expanded their existing operations in the last three months. These organizations join an esteemed roster of AI pioneers and global brands, including Meta, Cursor, Sony, and Tesla.We aim to revolutionize how businesses utilize data. Join us on our exciting journey!Note: This role is available for remote work in any country where ClickHouse has a hiring presence.About the TeamThe ClickPipes - Database Integrations team is responsible for developing a platform that facilitates real-time data replication from databases into ClickHouse at an unparalleled petabyte scale.As a member of this team, you will tackle complex database-related challenges and distributed system issues, including understanding database internals to refine snapshotting strategies, managing schema evolution during live replication, ensuring data type compatibility across various systems, maintaining low end-to-end latency under unpredictable loads, and utilizing robust execution frameworks to guarantee data consistency across unreliable networks. We operate transparently — our database integrations are constructed on PeerDB, an open-source CDC platform to which we actively contribute.Check out some of our latest projects:ClickPipes for Postgres now supports failover replication slotsMongoDB CDC to ClickHouse with Native JSON SupportUnder the Hood: Building MySQL Change Data Capture in ClickPipesYour Responsibilities:Develop data-driven systemsDesign and implement high-performance integrations with databases (Postgres, MySQL, MongoDB), data lakes (Iceberg, Delta Lake), and data warehouses (BigQuery, Snowflake).

GetYourGuide connects travelers with memorable experiences in over 12,000 cities. Since 2009, the company has helped millions discover new destinations. The Berlin headquarters leads a global team, with offices in cities such as New York and Bangkok. More than 850 employees collaborate to reshape how people find and book travel adventures. The Staff Site Reliability Engineer joins the Operational Excellence team, which works to minimize disruptions, boost productivity, and build user trust. As GetYourGuide expands its AI-powered travel solutions, this role ensures engineering speed and reliability remain strong so customers enjoy seamless experiences. What you will do Collaborate with product teams to improve system reliability, performance, and trust across the platform. Incident management and reliability Reduce the number of incidents, as well as Mean Time to Detect (MTTD) and Mean Time to Recovery (MTTR). Lead post-incident reviews and turn findings into lasting improvements. Create tools and runbooks that speed up diagnosis and resolution of production issues. Foster a culture that treats incidents as learning opportunities, not blame assignments. Take part in the infrastructure on-call rotation. Observability and production confidence Advance the Datadog-based observability stack, including metrics, logs, traces, dashboards, and alerts. Help teams define meaningful Service Level Objectives (SLOs) and prevent alert fatigue. Strengthen production debugging tools so engineers can solve issues independently. Change confidence and release quality Lower change failure rates by guiding teams on effective testing and deployment practices. Learn more about GetYourGuide’s team and mission at getyourguide.careers.

Join us at Jacobs Douweegberts as a Maintenance & Reliability Engineer (m/w/d) in Elmshorn, where you will play a crucial role in enhancing our production capabilities and ensuring the reliability of our equipment. This position offers an opportunity to work in a dynamic environment, focusing on continuous improvement and efficiency.

Site Reliability Engineer Company Overview At Orcrist Technologies, we are pioneers in developing the Orcrist Intelligence Platform (OIP), a robust and secure Kubernetes-native system designed for flexibility across cloud, on-prem, and air-gapped environments. Our dedicated Innovation team spearheads new initiatives, working independently from delivery teams to prototype and validate comprehensive solutions before they become fully-fledged products. Role Overview As a Site Reliability Engineer, you will play a crucial role in accelerating Innovation's rapid prototyping cycles. Your responsibilities will include automating prototype environments, overseeing demo deployments, and validating platform constraints early in the development process. You will swiftly provision sandboxes, ensure prototypes are deployable, and create infrastructure handoff packages for seamless productization. Key Responsibilities Automate the provisioning and teardown of prototype environments using Kubernetes, GitOps, and Pulumi/Terraform to facilitate rapid discovery cycles. Manage reliable demo deployments that showcase new initiatives while maintaining a quick iteration pace. Early validation of air-gapped, on-premise, and cloud constraints to ensure prototypes are ready for adoption by productization teams. Implement observability for prototypes using OpenTelemetry, Prometheus, and Grafana, along with lightweight Service Level Objectives (SLOs) to support validation efforts. Create comprehensive infrastructure handoff packages, including deployment specifications, Helm charts, and runbooks to ensure a smooth transition to productization. Collaborate with the Platform team to ensure prototypes align with standards while meeting the rapid iteration demands of the Innovation team. Qualifications 4+ years of experience in Site Reliability Engineering or Platform engineering with practical knowledge of Kubernetes and GitOps. Proven track record in rapid environment provisioning, ephemeral deployments, and infrastructure automation. Comfortable validating deployability constraints (air-gapped, on-prem) early in the development process. Exceptional technical writing skills, capable of producing clear deployment specifications and handoff artifacts that minimize adoption friction. Eligibility to work in Germany; EU or NATO citizenship is preferred. Preferred Qualifications Proficiency in the German language (B1+), experience with BSI/ISO compliance, and familiarity with supply chain security tools (e.g., Cosign, Kyverno). Experience working in prototype or R&D environments, demo automation, or infrastructure handoff processes. What We Offer Access to a modern tech stack including Kubernetes, Argo CD, Terraform, Prometheus, Vault, Kyverno, GitOps, and OpenTelemetry. A remote-first work environment in Germany, complemented by regular meetups in Berlin and 30 days of vacation. Engagement in mission-driven projects that have a meaningful impact on public safety and defense. Provision of equipment and a home office budget, along with support for professional development.

Flip is building an AI-powered employee experience platform designed for frontline workers. The mission centers on giving every employee, no matter their location, access to essential company information. Flip’s goal is to become the most widely used platform for frontline teams, changing how these teams connect and collaborate. Role overview As a Site Reliability Engineer in the Platform Squad, the focus is on keeping Flip’s infrastructure reliable, fast, and scalable. The role involves shaping reliability practices, developing internal tools, and supporting engineering teams as they deploy at scale. This position is well suited for someone who enjoys building high-throughput, highly available systems and wants to have a direct impact on the operations of a SaaS platform in production. What you will do Scale infrastructure: Improve and optimize Azure cloud environments and Kubernetes clusters to support global growth and high availability. Ensure resilience and safety: Build and maintain zero-downtime deployments, rollback strategies, and disaster recovery plans to keep the platform running around the clock. Advance observability: Enhance the LGTM stack (Loki, Grafana, Tempo, Mimir) to provide teams with visibility and use these tools to define and refine Service Level Objectives (SLOs). Automate infrastructure: Create and improve infrastructure as code using Pulumi in Go, reducing manual work and making the platform more self-service for engineers. Promote reliability practices: Support CI/CD best practices, incident response, post-mortems, and improvements to developer experience across engineering. Shape the platform’s future: Collaborate with your squad and engineering leadership to influence the roadmap, including scaling, cost management, security, and compliance. Location This role is open to candidates based in Berlin or Stuttgart, Germany, as well as remote applicants located within Europe.

Join asklio as a Core Engineer, where you'll be part of an innovative team committed to developing cutting-edge solutions. We are looking for individuals who are passionate about technology and eager to make a significant impact in our projects. This role offers a unique opportunity to work on exciting challenges in a collaborative environment.

Join Brainlab as a (Senior) IT Systems Engineer specializing in Core IT Infrastructure, where you will play a pivotal role in managing and optimizing our IT systems. Your expertise will help ensure the reliability and efficiency of our technological backbone, supporting innovative healthcare solutions.