Senior Cloud Infrastructure Engineer

About Langfuse Langfuse builds an open-source LLM Engineering Platform that helps teams develop AI applications. The platform includes tools for tracing, evaluation, and prompt management. As part of ClickHouse, Langfuse focuses on improving AI observability with a strong data-driven approach. Langfuse is the largest open-source solution in its field. The pl…

Unleash Your Imagination with AI Orchestration.n8n is a pioneering open workflow orchestration platform designed for the AI revolution. We empower technical teams to harness the flexibility of code with the efficiency of no-code, enabling faster, smarter automation without limits. Supported by a vibrant community and over 500 builder-approved integrations, we are redefining how systems converge and ideas scale for meaningful impact.Since our inception in 2019, our diverse team of over 220 members has collaborated across Europe and the US, united by a builder spirit with our headquarters in Berlin. Our achievements include:Nurturing a community of more than 650,000 active developers and builders.Amassing over 145k GitHub stars, ranking us among the world’s Top 40 most popular projects.Being recognized as one of Europe’s most promising privately held SaaS startups, ranked 4th in Sifted’s 2025 B2B SaaS Rising 100.Securing $240 million in funding, from Sequoia’s first German seed to our recent $180 million Series C, bringing our valuation to $2.5 billion.We invite you to envision what you can create with us. If you're interested in applying, we encourage you to explore n8n—whether you're technical or not—and share a screenshot of your first workflow with us. You can start here: app.n8n.cloud/register.Join us at this pivotal moment in our journey and help us build the future. Your primary responsibility will be to design, construct, and maintain the cloud infrastructure and networking foundations that power n8n Cloud, ensuring secure and reliable scalability across regions and clients.In this role, you'll influence the architecture, systems, and deployment strategies that enable n8n Cloud to expand with speed, resilience, and confidence:DESIGN & BUILD CLOUD INFRASTRUCTUREArchitect, build, and oversee cloud infrastructure on Azure, prioritizing reliability, scalability, and operational excellence.Develop infrastructure solutions from the ground up rather than merely managing existing tools or templates.Facilitate the evolution of our platform architecture as n8n Cloud scales to millions of users.

Join the Scout24 Team!Scout24, the proud home of ImmoScout24, has been at the forefront of transforming the real estate market in Germany and Austria for over 25 years. Our mission is to create a digital ecosystem that connects homeowners, seekers, and agents seamlessly. We understand that finding the perfect home is one of life's pivotal decisions—just like choosing your career! #WorkingatScout24 means being part of a vibrant and inclusive team composed of approximately 1,100 professionals from 58 different nationalities. We celebrate diversity and individuality while fostering a culture of openness and authenticity that enables personal growth and learning. We believe that mistakes are opportunities for innovation and growth. Together, we take proactive steps towards improvement, embracing responsibility, and engaging in respectful discussions about our successes and challenges because we are #oneteam.If this resonates with you, we would be thrilled to have you on board! Even if you don’t meet every requirement, we welcome the unique value you can bring to our team. Grow with us!Beyond our supportive culture, we offer an array of fantastic benefits that make Scout24 a remarkable workplace!

Join our dynamic team at dev2 as a Cloud Security Engineer. In this role, you will be responsible for safeguarding our cloud infrastructure and ensuring the highest standards of security are maintained. You will collaborate with cross-functional teams to design and implement robust security measures, conduct risk assessments, and respond to security incidents.We are looking for someone with a passion for cybersecurity and a proactive approach to problem-solving. If you thrive in a fast-paced environment and are eager to make a significant impact, we want to hear from you!

Join PPRO, where our mission is to facilitate seamless access to local payment methods, empowering global commerce. We envision a world where anyone can purchase goods and services using their preferred payment method. Our partnerships with industry leaders like Ant Group, PayPal, and Stripe enable us to tap into new markets and connect with a broader customer base, accelerating growth for all.Our strength is rooted in our diverse and multicultural team, comprising over 50 nationalities across more than 10 international locations. United by a common goal, we strive to deliver exceptional products and services to our partners and customers. While we focus on innovating global commerce, we embody principles of #chooseaction, #beopen, #thinkcustomer, #gofurther, and #wintogether.Purpose of the Role:As an Infrastructure Engineer II, you will join the Developer Enablement domain, tasked with ensuring that all cross-functional development teams have access to a robust, scalable, reliable, cost-effective, and highly secure infrastructure for their applications. Your expertise will be pivotal in implementing and maintaining our infrastructure framework, paving the way for development teams to thrive. At PPRO, we operate as a cloud-native FinTech, utilizing AWS for our payment services and GCP for analytics.

Join our innovative team as a Senior DevOps Engineer focused on infrastructure. In this pivotal role, you will collaborate with cross-functional teams to design, implement, and maintain robust infrastructure solutions that enhance our deployment and operational efficiency. Your expertise will directly contribute to the scalability and reliability of our services.

Join our dynamic team at Contentful as a Senior Software Engineer specializing in Backend & Infrastructure. In this pivotal role, you will design and implement robust backend systems that power our content platform. Collaborate with cross-functional teams to enhance our infrastructure, driving innovation and efficiency in our development processes.

Your ResponsibilitiesTake ownership of the backend systems that facilitate thousands of hotel bookings every day.Architect, develop, and maintain our core booking infrastructure, ensuring robust integrations with PMS platforms, channel managers, and payment processors.Establish and uphold a resilient API layer that supports our React frontend operations.Elevate the engineering standards through effective system design, transparent communication, and strong technical leadership.Collaborate closely with the founders to influence the long-term architecture and foster a culture of engineering excellence.

Role overview Forvis Mazars seeks a Senior Fullstack Engineer in Berlin with a strong focus on cloud and AI technologies. This position involves designing, developing, and implementing solutions that draw on modern cloud services and artificial intelligence. What you will do Design and build fullstack applications that connect cloud and AI technologies Collaborate with colleagues to deliver digital solutions for clients Apply technical expertise to projects supporting digital transformation Enhance client experiences by creating innovative, scalable systems Requirements Experience with both frontend and backend development Solid background in cloud platforms and AI tools Enjoys collaborative work and knowledge sharing Motivated to try new approaches and push technical boundaries This role is based in Berlin. Forvis Mazars encourages applications from all genders.

bunch helps funds and private investors set up and manage investment entities with greater efficiency and security. By combining deep sector expertise with thoughtful technology, the team aims to make private markets more accessible and reliable. Role overview: Senior Platform Engineer This Berlin-based position focuses on designing, building, and maintaining the infrastructure and automation that support bunch’s applications. The Senior Platform Engineer blends DevOps agility with the architectural responsibilities of Platform Engineering, helping development teams deliver secure, high-quality software at scale. What you will do Design, implement, and maintain scalable, secure cloud infrastructure in AWS. Manage infrastructure as code using Terraform or similar tools. Oversee container orchestration platforms, including Kubernetes. Develop and maintain disaster recovery and high availability plans. Build and improve CI/CD pipelines for reliable and efficient deployments. Automate provisioning, configuration management, and application deployments. Integrate automated testing and security checks into delivery workflows. Deploy and manage logging, alerting, and observability tools to monitor system health. Troubleshoot and resolve performance issues, outages, and bottlenecks. Work alongside development teams to resolve deployment challenges. Ensure infrastructure and processes meet security, governance, and compliance requirements. Apply security patches and updates to infrastructure and platform components. Collaborate with software engineers to align development and operational practices. How this role fits in This is a highly collaborative position, connecting operations, development, and security. The Senior Platform Engineer shapes the foundation that enables bunch to deliver reliable products to its users.

Join praxipal, where we're revolutionizing healthcare administration with our AI-powered workforce, tackling the global shortage of medical staff.We believe that medical assistants should focus on patient care rather than mundane tasks like scheduling, messaging, or invoicing. Enter Luna, our AI receptionist, who automates communication and is already embraced by over 100 medical practices.As we expand Luna's capabilities to manage all aspects of patient communication, we're on a mission to streamline administrative processes directly within existing practice systems.Backed by one of Europe’s leading investors and recognized as one of Germany's fastest-growing healthtech startups, our team comprises talents from renowned organizations such as Palantir, Amazon, and SAP.We are currently seeking a Senior Software Engineer (Infra & Platform) to construct the reliable, secure, and scalable infrastructure that powers Luna.The RoleLuna operates in real-time, automating critical workflows involving sensitive patient data. Therefore, reliability, latency, and security are not just goals; they are essential features of our product.In this hands-on, technical role, you will establish and maintain the platform that ensures Luna's reliability in daily practice operations. This includes managing cloud infrastructure, CI/CD processes, identity and access management, observability, and Luna’s real-time voice stack. Your work will help minimize risks, streamline deployments, facilitate quick failure diagnostics, and embed security as a core principle.This position is on-site in Berlin and requires fluency in German.

This position is available in Berlin or London. UNLOCK YOUR POTENTIALTrade Republic is Europe's premier savings platform, operating across 17 countries and entrusted with over €100 billion in assets by more than 8 million customers. We are on a relentless pursuit to innovate and expand.Our mission is bold: we aim to empower individuals to build wealth through seamless, secure, and no-cost access to financial systems. Join us and elevate your career by collaborating with exceptional talents and cutting-edge technology to create a positive legacy for millions. ROLE RESPONSIBILITIESAs a Senior Security Engineer within our Cloud Security team, you will design and maintain secure cloud infrastructures that safeguard Trade Republic's essential systems and customer data. Your key responsibilities will include:Creating and enforcing security controls for cloud infrastructure across AWS environments;Establishing and upholding Infrastructure as Code (IaC) security standards along with automated compliance validation;Developing cloud security automation utilizing Terraform, CloudFormation, and Python to enforce security policies;Implementing and refining Cloud Security Posture Management (CSPM) solutions and remediation workflows;Architecting secure network segmentation, VPCs, security groups, and zero-trust network access frameworks;Managing identity and access management (IAM) policies, service control policies, and least privilege frameworks;Monitoring and responding to cloud security incidents using CloudTrail, GuardDuty, Security Hub, and SIEM integration;Conducting security assessments of Kubernetes clusters, container registries, and serverless architectures;Collaborating with platform and infrastructure teams to enhance cloud security and address vulnerabilities;Championing cloud security initiatives, including encryption strategies, secrets management, and data protection measures;Evaluating and integrating cloud-native security tools for runtime protection and threat detection.QUALIFICATIONSRequired Experience:5+ years as a Security Engineer with at least 4 years focused on cloud security;Expertise in AWS, Terraform, and Python;Strong understanding of cloud security frameworks and best practices;Proficient in security automation and compliance tools.

We are seeking a highly skilled Senior Civil Engineer specializing in infrastructure and energy projects to join our dynamic team at dreessommerse. In this role, you will lead engineering initiatives, ensuring compliance with industry standards while delivering innovative solutions for our clients. Your expertise will contribute to the successful execution of various large-scale projects, driving both technical excellence and project efficiency.

Intercom builds AI-powered customer service tools for businesses worldwide. Our flagship AI agent, Fin, helps companies deliver responsive support at any hour. Combined with our Helpdesk, these tools form the Intercom Customer Service Suite, which blends AI automation with human expertise for more complex questions. Since 2011, nearly 30,000 businesses have relied on Intercom to improve their customer experience. Our team values fast iteration, continuous learning, and delivering real value to clients. Role overview Intercom is hiring Senior AI Infrastructure Engineers in Berlin to design and scale the systems behind our next generation of AI products. The AI Infrastructure team works across the stack, from GPU-level programming to the user-facing agents that handle millions of support conversations each month. This group builds and maintains training pipelines and inference systems for custom models like Fin Apex, which are central to our AI offerings. Collaboration with a tight-knit, highly skilled team is part of the role. What you will do Develop and scale training pipelines for large transformer and LLM models, including data ingestion, preprocessing, distributed training, and evaluation. Build and optimize inference services for low-latency, reliable customer experiences, covering autoscaling, request routing, and fallback mechanisms. Improve GPU-level performance by tuning kernels, increasing utilization, and identifying bottlenecks across both training and inference stacks. Work closely with machine learning scientists to implement new training and inference techniques. What we look for Demonstrated experience in model training or inference at scale, with strong skills in low-level GPU programming (such as CUDA or Triton). Experience across multiple areas is a bonus.

Enpal is working to build Europe's largest renewable energy community. The company offers rental services for solar systems, electricity storage, wall boxes, and smart meters, all managed through the Enpal One+ platform. With a focus on digital, decentralized, and fully renewable solutions, Enpal aims to scale quickly and address climate change head-on. Role Overview The Senior Cloud Security Engineer joins the CISO organization in Berlin (Design Office). This role focuses on translating ISO 27001, NIS2, and KRITIS requirements into practical steps, assessing systems, identifying compliance gaps, collecting evidence, and ensuring issues are resolved. The work spans Enpal's entire technology stack, including cloud infrastructure, identity management, endpoints, applications, and various platforms. This is a hands-on position. The engineer will collaborate with IT and CTO teams, review configurations, challenge architectural choices, and use AI tools to improve efficiency. The role is deeply involved in implementation, not just governance. Enpal values agility and offers opportunities for career growth. Security, engineering, and product teams work closely to support the mission of making solar energy accessible and sustainable. The Senior Cloud Security Engineer will help build the compliance framework that keeps Enpal resilient and trusted. What You Will Do Create Secure Solutions: Deliver incremental improvements with each iteration, focusing on user experience and climate goals. Apply Shift-Left and Zero-Trust principles across all units. Translate Regulations into Action: Break down ISO 27001, NIS2/BSIG, and KRITIS requirements into prioritized tasks. Develop solutions or coordinate with CTO and IT teams to implement them. Evaluate Technology Stack for Compliance: Conduct hands-on assessments of Azure, Entra ID, M365, Intune, Defender XDR, AKS, Terraform, CI/CD pipelines, Datawarehouse, and other platforms. Identify where current practices differ from regulatory standards. Build Resilience Against Threats: Strengthen Enpal's ability to mitigate and respond to security threats, keeping systems secure and reliable.

Why Join NebiusNebius is at the forefront of a transformative era in cloud computing, tailored to meet the demands of the global AI economy. We equip our clients with the innovative tools and resources necessary to tackle real-world challenges and revolutionize their industries, all while avoiding significant infrastructure investments and the need for expansive in-house AI/ML teams. Our team works with the latest advancements in AI cloud infrastructure, collaborating with some of the most knowledgeable and creative leaders and engineers in the industry.Our Work EnvironmentWith our headquarters in Amsterdam and a presence on Nasdaq, Nebius has established a global footprint with R&D hubs across Europe, North America, and Israel. Our diverse workforce of over 1400 includes more than 400 highly skilled engineers specializing in both hardware and software engineering, in addition to a dedicated in-house AI R&D team.The RoleYour Responsibilities Will Include:Ensuring fault tolerance, scalability, and seamless operation of our services.Utilizing cutting-edge cloud technology to address various infrastructure challenges.Implementing and enhancing CI/CD processes.Qualifications We Expect:Proven experience with programming languages such as Go, Python, or C++.Strong understanding of classic algorithms and data structures.Commercial experience and in-depth knowledge of Unix systems and network technologies.Experience with containerization and configuration management systems (e.g., Ansible, Salt, Terraform, Docker, Kubernetes, Helm).Bonus Qualifications:A passion for backend development.Experience in designing, developing, and operating high-load distributed systems.Commercial experience with various cloud platforms.We conduct coding interviews as part of our hiring process.

Join dreessommerse as a Senior Project Manager specializing in major transportation infrastructure projects. In this pivotal role, you will lead and oversee complex projects that enhance our road infrastructure, ensuring timely delivery and adherence to budget constraints. Your expertise will be essential in collaborating with multidisciplinary teams, stakeholders, and regulatory bodies to achieve project goals effectively.

About the Role nagarro is looking for an IT Infrastructure Engineer in Berlin to help design, implement, and manage IT systems. This role works closely with teams across the company to keep infrastructure secure and running smoothly. What You Will Do Design and build IT infrastructure components Maintain and monitor system performance and security Work with colleagues from different departments to support business needs Contribute ideas to improve efficiency and reliability

Role Overview scalablegmbh is looking for a Senior Cloud Site Reliability Engineer with a focus on network systems. This position is based in Berlin. What You Will Do Maintain and improve the reliability, performance, and scalability of cloud infrastructure. Work closely with engineering teams to optimize network services and resolve technical challenges. Contribute to developing solutions that strengthen network systems. Support a culture of ongoing improvement across the organization. About You Bring expertise in cloud technologies and network systems. Enjoy solving complex problems and collaborating with others. Ready to make an impact in a growing company.

Role overview Delivery Hero SE is seeking a Senior Manager - Infrastructure Security to join the team in Berlin. This leadership position centers on safeguarding company infrastructure and data by designing and carrying out effective security strategies. Key responsibilities Create and apply security strategies to protect infrastructure and sensitive data Collaborate with teams across the company to spot security risks and address vulnerabilities Maintain compliance with industry standards and best practices Oversee security projects from initial planning through successful completion Encourage security awareness throughout the organization Collaboration and leadership This role works closely with cross-functional teams and plays a central part in building a strong security culture. Success in this position relies on clear communication and effective leadership.