Site Reliability Engineer III

Join MongoDB, a leader in the database market, as we revolutionize the way developers create and manage applications. Our distributed systems support mission-critical services for thousands of customers worldwide.We are seeking a skilled Software Engineer to become part of our Cloud Core Alerts Platform team. You will be instrumental in designing scalable, fault-tolerant, and highly available systems that can process millions of events and alerts in real-time.This role is based in Dublin, where we embrace a hybrid working model.Our domain includes:Alert Streaming Systems: Real-time alerting pipelines using Apache Flink and Amazon Kinesis, delivering critical insights for MongoDB Atlas customers.Event Systems: SOA-based event platforms utilizing gRPC and streaming architectures to efficiently manage the MongoDB activity feed at scale.Communication Systems: Distributed services that ensure reliable delivery of alert notifications across multiple channels (email, SMS, Slack, PagerDuty).Third-Party Integrations: Secure management of customer credentials and seamless integration with external observability providers, ensuring encryption both at rest and in transit.Cross-team Collaboration: Working closely with the broader Customer Observability teams to provide unified telemetry and monitoring experiences.What you'll do:Design and develop distributed systems capable of processing millions of events per second while maintaining high availability and low latency.Lead projects from design to production, ensuring scalability, observability, and operational excellence.Enhance our streaming alerting and eventing platforms to improve reliability, throughput, and the overall developer experience.Collaborate with cross-functional teams to integrate alerting, event, and communication services into the broader customer observability ecosystem.Create secure, multi-tenant integrations with third-party providers, handling sensitive customer credentials with care.Promote best practices in distributed systems design, focusing on resilience, scalability, and fault tolerance.Mentor and guide fellow engineers, sharing expertise in distributed architectures and streaming technologies.

Join our dynamic team at Primark as a Platform Owner focused on Public Cloud solutions. In this pivotal role, you will lead the strategy and implementation of cloud platforms, ensuring they align with our business objectives and enhance operational efficiency. Your expertise will drive innovation, optimize resources, and support our commitment to delivering excellence in customer experience.

Join Our TeamAs an integral member of the CloudEOS team at Arista Networks, you will engage with a dynamic and talented group dedicated to developing innovative software solutions for Cloud-enabled WAN connectivity. Our team oversees the complete lifecycle of control plane, software data plane, and management platform/APIs/services.Your ResponsibilitiesYou will contribute to the creation of groundbreaking products and services that offer highly automated networks, ensuring secure connectivity across multiple global locations. In this position, you will work with diverse technologies, including the Extensible Operating System (EOS), multithreading, multicore software forwarding via DPDK, and various public cloud infrastructures such as AWS, Azure, and GCP. You will also explore areas like path selection, NFV, containers, network segmentation, virtualization, microservices architecture, CI/CD pipelines, and Terraform-based provisioning models.

Join the MongoDB Server Query team and contribute to the development of an exceptional distributed open-source query engine. Our team is pivotal in enhancing the user experience and optimizing data processing performance. We manage the complete lifecycle of queries in the MongoDB Query Language—ranging from parsing and optimization to plan selection and execution, including geospatial search and update subsystems. As our global team expands rapidly, we have established a significant presence in North America across the US and Canada, including cities like New York and Toronto, and in Europe, with locations in Dublin, Germany, France, the Netherlands, the UK, Bulgaria, Spain, and Italy. We offer both office-based and remote work options, ensuring project alignment with convenient working hours across different time zones. We face numerous challenging problems that directly impact users across transactional, time-series, and analytical workloads. We seek your expertise in designing and building the core components of a distributed, flexible schema document database. This position is specifically for candidates located in Dublin, fitting our hybrid working model.

The Enterprise Advanced team at MongoDB is a vibrant and diverse collection of professionals from across Europe and India, dedicated to developing innovative software solutions that empower users to seamlessly run MongoDB on any infrastructure at a global scale. Our cutting-edge software and services facilitate the rapid deployment of fault-tolerant, globally distributed MongoDB clusters, enabling users to set up their systems in just minutes. The Backup Team plays a pivotal role by providing critical infrastructure that ensures our customers can restore their massive, distributed databases to any desired point in time with a simple click. Our mission is to enhance the reliability, speed, and cost-effectiveness of MongoDB backup solutions. This team is responsible for the Backup Agent (Go), comprehensive server-side infrastructure (Java) that manages hundreds of terabytes of data and processes billions of operations daily, as well as the user-friendly interface (JavaScript) utilized by customers to oversee their backups. Key themes in our projects include performance optimization, scalability, and user experience.

Semperis is known for fostering a workplace where employees can grow and succeed together. The company has been recognized on the Inc. 5000 list of America's fastest-growing cybersecurity companies and has earned multiple awards for its positive culture and employee experience. Role overview The Platform Group at Semperis is looking for a Junior Software Engineer based in Dublin, Ireland. This position centers on designing and developing core infrastructure that supports enterprise security and identity products. Collaboration and a commitment to technical excellence are essential in this role. Key responsibilities Design and build shared platform components that improve scalability, reliability, and maintainability across several product teams. Contribute to the architecture of distributed systems using microservices and event-driven patterns for large-scale enterprise requirements. Oversee backend services throughout their lifecycle, focusing on code quality, performance, and operational efficiency. Collaborate with product engineers, DevOps, and architects to define platform features and establish technical standards. Take part in code reviews, pair programming, and provide technical guidance to teammates. Assist with initiatives that enhance developer productivity, system observability, and platform resilience. Participate in architectural discussions and help advance backend development best practices within the organization. Examine system performance and data patterns to spot optimization opportunities and guide future platform improvements. Requirements Minimum of 1 year of professional experience in software engineering, focusing on backend development. Practical experience with C# and .NET Core, including knowledge of modern framework features and performance tuning. Team-oriented mindset with a willingness to learn and contribute in a collaborative environment.

Join Toast, a leading technology company, as a Senior Software Engineering Manager overseeing our dynamic Web Platform and driving Product Led Growth initiatives. In this pivotal role, you will lead a talented team of engineers, fostering innovation and excellence while ensuring the seamless integration of our platform with customer needs and market trends.

At Ripple, we are pioneering a future where value is transferred as effortlessly as information. Our innovative crypto solutions empower financial institutions, businesses, governments, and developers to enhance the global financial system, promoting economic fairness and opportunity for individuals worldwide. Join a dynamic team where you can elevate your career and expand your skill set alongside supportive colleagues.If you are eager to make a significant impact and unlock remarkable career advancement prospects, we invite you to join us in creating tangible value for the world.In 2025, Ripple acquired GTreasury, marking an important step into the expansive corporate finance sector valued in the trillions.With over 40 years of expertise, GTreasury supports some of the largest and most sophisticated companies globally. By integrating its treasury command center into Ripple’s technology stack, we enable businesses to manage and optimize liquidity in real-time, across both traditional and digital assets.Become a part of our mission to revolutionize corporate treasury and the infrastructure that powers the Internet of Value.We are looking for a forward-thinking Staff Software Engineer who is passionate about developing a world-class platform in collaboration with a talented team. Your role will focus on driving technical excellence in application development, from design through implementation and maintenance.Key Responsibilities:Collaborate with architects and product managers to design, estimate, and implement innovative application features across front-end, server-side, and database tiers.Utilize Azure services to develop powerful, scalable, and resilient cloud-based solutions.Enhance software applications and manage delivery pipelines, feature flags, ensuring smooth integration and deployment.Conduct thorough unit, integration, and non-functional (performance, security) testing to ensure production readiness of our software.Employ observability tools and logging to troubleshoot and resolve issues across development, testing, and production environments.Stay updated on technology trends, explore new technologies, engage with tech communities, mentor fellow engineers, and lead technical design and code evaluations.Continuously seek improvements in team operations, processes, methodologies, and technology choices, aiming for excellence in every practice.

Role Overview SyscoGB is looking for a Hybrid Cloud Engineer based in Dublin. This role focuses on designing and implementing cloud solutions that support both innovation and operational efficiency. Collaboration with cross-functional teams is central to the work, ensuring cloud infrastructure and services meet business needs. What You Will Do Design and implement hybrid cloud solutions Work with teams across the company to optimize cloud infrastructure Support the delivery of reliable and efficient cloud services Location Dublin (hybrid work model may apply based on company policy)

Join Starling Bank, the UK's pioneering digital bank, dedicated to revolutionizing the banking experience! Our goal is to leverage cutting-edge technology, provide fair service, and uphold honest values, all accessible through your mobile device.As a fully licensed UK bank, we embody the innovative spirit of a tech company, offering a fairer, user-friendly approach to banking that simplifies money management for everyone.With over 3,000 employees across our locations in London, Southampton, Cardiff, and Manchester, our talented technologists are at the core of our mission, thriving in a fast-paced environment focused on creativity, innovation, and the latest advancements in fintech. We promote a flat organizational structure, empowering you to make impactful decisions while collaborating with your team for optimal results.At Starling, we value self-drive and ownership, encouraging you to engage in building, designing, discovering, and sharing knowledge to ensure efficiency and productivity in delivering exceptional customer outcomes. Our guiding principles are embodied in our five core values: Listen, Keep It Simple, Do The Right Thing, Own It, and Aim For Greatness.Hybrid WorkingStarling embraces a Hybrid work model, ideally requiring you to be within a commutable distance to one of our offices for in-person collaboration. In the Technology department, we ask for a minimum of one day per week in the office.Our Data EnvironmentThe Data teams at Starling focus on various Banking Services & Products, Customer Identity & Financial Crime, and Data & ML Engineering. We are passionate about providing valuable insights to both our business and our customers. Explore more about our team in our latest blogs or through our case studies with Women in Tech.We invite talented data professionals at all levels to join our dynamic team. We appreciate individuals who are engaged, customer-focused, and take pride in their contributions.

Join the Atlas Growth team at MongoDB, where we empower customers on their app development journey. Our cloud engineering group specializes in everything from cluster configuration and data modeling to load testing and managing production workloads at scale. With the help of our in-house experiments platform, we ensure that only valuable features are released, enhancing our customers' experiences. Our engineers collaborate in cross-functional squads that include product, design, analytics, and research, focusing on key metrics like retention. As part of the Atlas Core Engineering organization, we build essential components for MongoDB’s developer data platform.Atlas Growth 2 is dedicated to developing customer-facing features within Atlas, working alongside other engineering teams focused on growth. Recent initiatives include creating an AI Chatbot for cluster creation, implementing a recommendation system to improve database performance, and designing a pricing page to boost conversion rates.We are excited to connect with candidates based in Dublin as we embrace a hybrid working model.

Join our dynamic team as a Senior Engineer specializing in Infrastructure Platforms. You will play a crucial role in shaping our infrastructure, enhancing our scalability and performance. Collaborate with cross-functional teams to design and implement robust systems that support our growing user base.As a Senior Engineer, you will be expected to leverage your extensive experience in software engineering, systems architecture, and cloud technologies to drive innovation within our infrastructure.

Join Primark as a Data Platform & Engineering Lead and drive the evolution of our data architecture and engineering practices. In this pivotal role, you will lead a dynamic team focused on building robust data platforms that support our expansive retail operations. Your expertise will guide the development of innovative data solutions, ensuring data integrity, scalability, and availability.

At Crusoe, we are on a mission to accelerate the abundance of energy and intelligence, creating the driving force behind a world where individuals can ambitiously innovate with AI without compromising on scale, speed, or sustainability.Join us in the AI revolution powered by sustainable technology at Crusoe. Here, you will foster meaningful innovation, make a significant impact, and be part of a team that leads the way in responsible and transformative cloud infrastructure.Role Overview:As a Senior Cloud Support Engineer, you will be instrumental in the transformation of high-performance computing through the provision of sustainable and cost-effective GPU compute power. Your role will empower our customers to harness this technology for pioneering developments in areas such as AI/ML, physics simulations, and computational biology. Acting as the primary technical support contact, you will ensure that our customers can effortlessly utilize Crusoe Cloud to reach their objectives. This position is vital to Crusoe's mission, facilitating our customers' research and development efforts and contributing to a sustainable future. You will engage in exciting projects, collaborate with a talented team, and tackle complex challenges using cutting-edge technologies. We are seeking a highly motivated and experienced technical professional with a strong commitment to customer success, a comprehensive understanding of cloud technologies, and alignment with Crusoe's core values. This is a full-time position.Key Responsibilities:Customer Support: Deliver outstanding technical support to customers via Zendesk, adhering to SLAs and maintaining a high customer satisfaction score (CSAT of 95% or greater).On-Call Rotation: Participate in a 24/7 on-call rotation to promptly address critical issues.Troubleshooting: Diagnose and resolve issues related to VMs, hardware failures, and scaling tests using CLI and internal tools.Alert Management: Oversee alert triage, prepare for maintenance windows, and conduct node delivery testing.Collaboration: Collaborate closely with SRE, Networking, and Storage teams from initial triage through root cause analysis (RCA) delivery.Global Collaboration: Follow established global team collaboration and handoff procedures for ticketing and on-call management.Knowledge Development: Create onboarding materials, knowledge base documentation, and standard operating procedures (SOPs).

Join Arista Networks as a Senior C++ Software Engineer, where you will play a pivotal role in developing innovative software solutions. Work closely with a talented team to design, implement, and optimize high-performance systems that drive our cutting-edge networking solutions.

Join Arista Networks as a Software Engineer specializing in Kernel and BIOS development. In this role, you will contribute to the design, development, and optimization of cutting-edge software for our advanced networking products. You will collaborate with cross-functional teams to ensure seamless integration and functionality of system software components.

Join our dynamic team at Arista Networks, a leader in cloud networking solutions. We're seeking a talented Backend Software Engineer to contribute to our innovative CloudVision platform. In this role, you will develop and optimize backend systems that support our cutting-edge cloud technologies.

About AnthropicAt Anthropic, we are on a mission to develop AI systems that are not only reliable and interpretable but also steerable. Our primary goal is to ensure that AI technology is safe and advantageous for all users and society at large. Our rapidly expanding team consists of dedicated researchers, engineers, policy experts, and business leaders, all working collaboratively to create beneficial AI solutions.Role OverviewAt Anthropic, we believe in the strength of collaboration. Our AI Reliability Engineering (AIRE) team plays a crucial role in maintaining the robustness of Claude, our flagship AI, ensuring it remains reliable for everyone who relies on it. We work closely with various teams within Anthropic to enhance reliability across our essential service paths—from the SDK, through our network, API layers, serving infrastructure, and accelerators, and back again. Our hands-on approach allows us to make impactful improvements during incidents and in collaborative projects.Reliability is an emergent quality that extends beyond individual teams. Our role involves taking a comprehensive view of the systems, offering a unique opportunity for dynamic, cross-functional engagement with the most critical aspects of our operations.

Join us as a Cloud Architect specializing in Azure Databricks, where you will design and manage innovative data platforms on Azure. Your focus will be on leveraging Databricks for a seamless integration of data science, engineering, and analytics, with an emphasis on the two-plane architecture (Control & Data Planes), data governance (Unity Catalog), security (Entra ID, Key Vault), cost optimization, and the development of reliable Lakehouse solutions guided by Microsoft’s Well-Architected Framework principles for data pipelines (Bronze, Silver, Gold layers). You will also ensure effective integration with other Azure services like Synapse, Power BI, and Azure Monitor.Architecture Design: You will be responsible for designing comprehensive end-to-end data solutions, covering every aspect from data ingestion to final consumption utilizing the Databricks Lakehouse Platform on Azure.Control Plane vs. Data Plane: You will gain a deep understanding of the separation between the Control Plane, managed by Databricks, and the Data Plane, owned by the customer within their Azure subscription, ensuring data residency and robust security measures are in place.Data Governance: You will implement Unity Catalog for centralized access control, lineage tracking, and security across various data assets.Security & Identity: Integrating with Microsoft Entra ID (Azure AD) for single sign-on, utilizing Azure Key Vault for secrets management, and employing Microsoft Defender for Cloud to ensure comprehensive protection.Performance & Cost: Your role will involve optimizing cluster configurations (classic vs. serverless), storage solutions (ADLS Gen2), and resource utilization to enhance cost efficiency.