Senior Product Reliability Engineer

Join fyxer as a Senior Product Reliability Engineer and play a crucial role in ensuring the reliability and performance of our innovative products. In this position, you will collaborate with cross-functional teams to develop and implement best practices for product reliability, while also troubleshooting issues to enhance user experience.

We are seeking a highly skilled Lead Product Reliability Engineer to join our innovative team at fyxer in London. In this critical role, you will be responsible for enhancing the reliability and performance of our products, ensuring that we meet our high standards and customer expectations.Your expertise will help us develop robust solutions that can withstand the demands of our users, while also fostering a culture of excellence within our engineering team.

Join our dynamic team as a Senior Site Reliability Engineer at Bumble Inc., where your expertise in Linux and system-level operations will be pivotal in managing complex production environments. We seek a proactive engineer capable of independently troubleshooting incidents, leading post-incident recovery efforts, and implementing enhancements to boost overall system stability, performance, and observability. This role is ideal for hands-on SREs with a solid foundation in Linux infrastructure and third-party system operations, focusing on optimizing large-scale environments of over 5,000 hosts utilizing technologies such as Kafka, Redis, and Kubernetes. Please note, this position centers on operational excellence rather than application development, requiring deep technical acumen and advanced troubleshooting capabilities.

Join Graphcore, a pioneering company at the forefront of artificial intelligence and machine learning technology, as a Senior Systems Engineer specializing in Performance and Reliability. In this role, you will be instrumental in ensuring that our systems deliver exceptional performance and reliability that sets us apart in the industry.Your expertise will contribute to designing, implementing, and optimizing system architectures that support our cutting-edge technology. You will collaborate closely with cross-functional teams to tackle complex challenges and drive innovation within the organization.

Join Wise as a Senior Software Engineer I focused on reliability! In this pivotal role, you will be at the forefront of ensuring our systems are robust, scalable, and efficient. You will collaborate with cross-functional teams to identify and resolve issues, enhance system performance, and contribute to our mission of making international money transfers easy and affordable. If you are passionate about technology and thrive in a dynamic environment, we want to hear from you!

What You'll Accomplish:As a Senior Data Reliability Engineer, you will spearhead the integration of Site Reliability Engineering (SRE) across all engineering practices. Your leadership will ensure that every engineer and team is dedicated to crafting software that is not only resilient but also exceptionally reliable. You will collaborate with a diverse, cross-functional team of subject matter experts and on-call engineers, focused on maintaining high performance of our platform around the clock.Overseeing a comprehensive suite of products, you will be responsible for the reliability of enterprise-grade applications that process thousands of queries per second. Elliptic is acclaimed for its extensive and dependable datasets, and your role will be pivotal in establishing a market-leading infrastructure for data quality and governance. This involves creating the processes, culture, and frameworks that will enhance observability, data quality, lineage, and remediation, forming a crucial backbone of our data and intelligence platform.Your Responsibilities:This role spans multiple teams, and you will receive full support from leadership and engineering while showcasing exemplary standards. Your main tasks will include:Promote the principles of SRE and DRE throughout the engineering teams.Lead the development of a data quality framework that assures our clients of the accuracy of our data and supports marketing and revenue initiatives.Define and manage the on-call process within the SRE function:Quickly gain an in-depth understanding of our systems.Lead incident management.Conduct post-incident reviews.Ensure timely completion of follow-up actions.Assess and enhance our existing end-to-end on-call processes.Participate in the on-call rotation, approximately every 4 to 5 weeks, ensuring 24/7 coverage.Evaluate, manage, and improve our current monitoring, alerting, paging, and documentation solutions.Provide reports on system uptime, availability, and performance across our product range.Draft post-mortem reports for both internal and external stakeholders.Represent the SRE and DRE functions during discussions with top-tier enterprise financial institutions.

Join our innovative team at Graphcore as a Senior Systems Engineer, where your expertise in performance and reliability analysis will play a crucial role in shaping the future of our cutting-edge technology. This position offers you the opportunity to work with a talented group of engineers and researchers dedicated to advancing AI capabilities.Your responsibilities will encompass analyzing and optimizing system performance, ensuring reliability, and collaborating with cross-functional teams to implement best practices. You will leverage your technical knowledge to identify bottlenecks and propose solutions that enhance system efficiency.

About Axon Axon’s mission is to safeguard life. The company develops devices and cloud-based software focused on public safety and justice. Teams at Axon work together to address complex challenges, valuing transparency, empathy, and a range of perspectives from users, communities, and colleagues. Role Overview: Senior Site Reliability Engineer I This position sits within the Site Reliability Engineering (SRE) team. The main focus: tackle real-time challenges across Axon’s mission-critical, cloud-native services. The work centers on maintaining the reliability and quality customers expect. Collaboration is key, both within the SRE group and across the wider engineering organization, to help product teams deliver new features consistently. Work Location and Flexibility This role is based in London, England, United Kingdom. Axon uses a hybrid working model. Team members are expected onsite from Tuesday to Friday, with remote work on Mondays (unless a workplace accommodation is granted). The company emphasizes in-person collaboration to support teamwork, mentorship, and shared success.

About UsAt Heidi Health, we believe that healthcare deserves a more harmonious approach—one that ensures care remains continuous and deeply personalized. Our innovative AI Care Partner collaborates with healthcare providers to enhance the care experience for patients and clinicians alike.Our diverse team includes doctors, engineers, designers, researchers, and creatives, all dedicated to creating tools that empower clinicians to focus on what matters most: their patients.In just 18 months, we've reclaimed over 18 million hours for healthcare professionals, facilitating 73 million patient visits across 116 countries. Currently, our technology supports more than two million patient visits weekly worldwide.With nearly $100 million in funding, we are expanding our presence in the US, UK, Canada, and Europe, partnering with prestigious health systems such as the NHS, Beth Israel Lahey Health, and Monash Health.The OpportunityJoin our core Platform/SRE team, where you will take charge of production reliability. This role involves active incident response, on-call duties, system reliability, and daily operational oversight of Heidi’s platform.We welcome applications from mid-level SREs eager to embrace greater responsibility, as well as senior SREs who relish hands-on operational roles. This position emphasizes operational involvement and aims to maintain the health of real systems in production.Your ResponsibilitiesEngage in on-call and incident response: Address production incidents, assist in service restoration, and facilitate clear communication during incidents, escalating to leading incidents over time.Enhance operational reliability: Identify recurring issues and reliability risks, driving improvements through better alerting, automation, system enhancements, and process refinements.Manage production environment components: Operate and enhance Kubernetes clusters, cloud infrastructure, and core platform services, increasing responsibility as expertise grows.Boost observability: Refine dashboards, alerts, logs, and traces to enable earlier detection and faster diagnosis of issues, concentrating on actionable insights.Minimize operational toil: Automate repetitive tasks, streamline runbooks, and enhance tooling to facilitate smoother and safer on-call and daily operations.

At Thought Machine, we are on a daring mission to eliminate legacy technology from the world's banking systems. Our innovative core and payments technology, designed to operate seamlessly in the cloud, forms the backbone of modern banking. This ambitious endeavor requires talented individuals working collaboratively to develop exceptional technology.Our rapid growth in recent years has expanded our team to over 550 professionals across our offices in London, New York, Singapore, Sydney, and our newly established Engineering Hub in Lisbon. With over £500 million raised in funding from esteemed investors such as Molten Ventures, Eurazeo, Intesa Sanpaolo, Temasek, Nyca Partners, JPMorgan Chase Strategic Investments, and Standard Chartered Ventures, we are poised for continued success.We pride ourselves on cultivating a workplace culture that fosters creativity and productivity while ensuring that our team enjoys the journey. Regularly recognized for our outstanding workplace environment, we have received high Glassdoor ratings for UK fintech companies and offer one of the most generous employee share packages in the industry. Additionally, we have been named one of the world's most innovative fintechs by Global Finance Magazine and recognized by the Financial Times as one of Europe’s fastest-growing companies for two consecutive years, as well as a UK Best Employer for 2026.As a Senior Site Reliability Engineer, you will be entrusted with the critical responsibility of maintaining and enhancing the production infrastructure that supports our customers' advanced Core Banking and Payments platforms. This role offers a unique opportunity to make a significant impact on the global financial landscape while collaborating with some of the brightest minds in the industry to tackle complex engineering challenges.You will be a vital part of the Site Reliability Engineering team based at Thought Machine HQ in London, addressing the complexities of automating fleet management operations, mentoring fellow team members, fostering best practices within engineering, and developing operational processes that streamline interactions between Thought Machine and our SaaS clients.The SRE team plays a crucial role in navigating the technical challenges associated with Thought Machine’s growth ambitions, requiring collaboration with senior stakeholders and our customers on initiatives that are pivotal to the company’s success.

About Neo4j Neo4j builds a graph intelligence platform used by 84 of the Fortune 100 and supported by the world’s largest graph community. The platform powers knowledge graphs for AI, delivers reliable graph capabilities across cloud environments, and integrates with a wide range of systems. Neo4j’s technology is designed for precision, accountability, and governance, helping organizations turn data into actionable insights for intelligent applications and AI systems. Engineered for seamless operation in any cloud, Neo4j supports dynamic, personalized, and autonomous AI solutions. The focus is on delivering swift results, contextual knowledge, and solutions that improve both customer and employee experiences. Our Vision Neo4j’s mission is to help the world understand data. As business and society become more interconnected, Neo4j’s technology enables organizations to find and understand relationships within their data. The company pioneered the graph database category and continues to lead in helping teams innovate and stay competitive. About the Site Reliability Engineering Team The Site Reliability Engineering (SRE) team supports Neo4j’s Database as a Service (DBaaS) product, Neo4j Aura. Aura operates globally across all major cloud providers, running hundreds of Kubernetes clusters and managing thousands of Neo4j instances in production. This team is redefining SRE within Neo4j Aura. Rather than simply reacting to incidents, the SRE group empowers teams to design for reliability from the start. The work centers on building tools, practices, and a culture that embed SRE principles into the foundation of Aura’s operations. Collaboration with product teams and a commitment to resilience and engineering excellence are central to the team’s approach. What You Will Do Automate for insight and scale: Build systems that enable fast, safe, and scalable troubleshooting across thousands of Neo4j instances. This includes developing internal tools that provide actionable insights. Location London

Become a Force for Good with Axon.At Axon, our mission is to Protect Life. We are innovators tackling society’s most pressing safety and justice challenges through our integrated ecosystem of devices and cloud software. Like our products, we thrive on collaboration, connecting with transparency and empathy, and embracing diverse perspectives from our customers, communities, and each other.Working at Axon is fast-paced, challenging, and purposeful. Here, you will take the initiative and make a tangible impact. Constantly develop your skills as you dedicate yourself to a mission that matters within a company that values your contributions.Your ContributionJoin us in revolutionizing infrastructure automation for critical law enforcement systems. As a Senior Site Reliability Engineer, you will lead the creation of a cutting-edge infrastructure provisioning and automation platform. This platform allows engineering teams to independently access cloud infrastructure, ensuring safety and efficiency while minimizing manual interventions and operational risks.Your role will involve hands-on contributions to build and enhance systems leveraging automation and intelligent agents to generate, validate, test, and manage infrastructure at scale. We seek an engineer with a strong software development background, proficiency in programming languages such as Go or Python, and extensive experience in designing and operating cloud platforms, with a drive to enhance developer productivity, reliability, and platform robustness.Work Location:This position is based in our London office and follows a hybrid work schedule. We emphasize in-person collaboration, requiring team members to be onsite from Tuesday to Friday, with the option to work remotely on Mondays, unless a workplace accommodation has been approved. We believe that connection fuels innovation, and our in-office culture is designed to promote meaningful teamwork, mentorship, and collective success.Key ResponsibilitiesDevelop robust, user-friendly foundational platforms and tools that enable engineering teams to provision infrastructure quickly, consistently, and securely across diverse cloud providers.Write efficient, maintainable, and clear code in Go.Promote and uphold Infrastructure as Code (IaC) best practices and coding standards.Utilize strong problem-solving skills to troubleshoot issues in cloud-native distributed systems.Influence and educate the engineering organization on adopting new and improved architectural patterns.Provide comprehensive documentation to facilitate self-service by engineers.

Senior Site Reliability Engineer At ClearScore, we pride ourselves on being a unique workplace that has revolutionized the financial services industry over the past decade. With millions of users benefiting from our services, our success is driven by a collaborative culture that values hard work, adaptability, and mutual respect. This environment empowers our team members to realize their full potential and achieve outcomes that profoundly impact our users' lives. Our mission is to enhance the financial wellbeing of our users by placing their needs at the forefront of our innovations. Leveraging advanced technology, insightful analytics, and stunning design, we help our users gain financial confidence and make informed decisions. We believe in fostering an environment where our employees can thrive, which is why we prioritize output over hours logged. We embrace an inclusive culture that encourages personal wellness while supporting career growth and development. Your Responsibilities: Drive architectural advancements by participating in RFCs, architecture forums, and company-wide initiatives to enhance reliability, scalability, and efficiency. Lead and advance ClearScore’s Kubernetes platform, focusing on designing, upgrading, and optimizing clusters at scale while shaping our Kubernetes usage across the organization. Independently troubleshoot and resolve complex production issues, utilizing a profound understanding of distributed systems and containerization to prevent and mitigate incidents. Design and contribute to Kubernetes controllers and automation tools that enhance our infrastructure and developer experience. Improve our AWS estate, ensuring cost-effectiveness, security, and scalability while promoting best practices across teams. Collaborate with developers to enhance service observability, implement strategic metrics and alerting, and create informative dashboards for intricate systems. Construct and maintain CI/CD pipelines from inception for new use cases, manage migrations, and introduce new tooling as necessary. Engage with open-source projects by providing fixes, feedback, or developing new tools aligned with our mission. Mentor mid-level SREs and other engineers, fostering their growth in technical mastery and operational excellence.

Role overview The Forward Deployed Reliability Engineer at Palantir Technologies in London plays a key role in supporting the reliability and performance of Palantir's software as it becomes part of client operations. This position centers on ensuring that solutions remain stable and effective after deployment. What you will do Partner with clients to help integrate Palantir's technology into their daily workflows. Troubleshoot and resolve complex technical challenges to keep systems stable. Work to optimize performance and apply established reliability engineering practices. Collaborate with teams across disciplines to enhance system functionality and deliver results for clients.

At Orgvue, we are at the forefront of organizational design and planning software, harnessing the transformative power of data visualization and modeling to help organizations become more adaptable and high-performing. Our platform empowers HR, finance, and business leaders to make swift, informed workforce decisions in an ever-evolving landscape.Trusted by some of the world's largest enterprises and renowned management consulting firms, Orgvue enables organizations to visualize and proactively shape their futures. Headquartered in London, we also have offices in Philadelphia, The Hague, Toronto, and Sydney.We are currently on the lookout for a Principal Site Reliability Engineer to join our team as a senior technical leader specializing in scaling and fortifying our AWS and Kubernetes-based infrastructure.Role OverviewIn this pivotal role, you will collaborate with product, platform, and operations teams to ensure our systems are reliable, observable, and resilient, even at scale. This position marries hands-on technical proficiency with strategic foresight, enabling us to cultivate a world-class reliability culture and a strong engineering framework for growth. We seek an individual with robust technical skills, exceptional communication abilities, and a passion for cross-team collaboration.Key ResponsibilitiesEstablish and uphold SLOs, SLIs, and error budgets across vital servicesDesign and execute a comprehensive cloud infrastructure and tooling strategyElevate SRE practices organization-wideImplement effective observability metrics, logs, and traces using our observability toolsLead the team in creating automated, self-healing systemsManage and refine our incident response protocols, including on-call practices and a post-mortem cultureMentor engineers throughout the organization on reliability best practices, operational readiness, and scalable infrastructureDrive Infrastructure as Code (IaC) initiatives using Terraform, Kubernetes, CloudFormation, and GitOps methodologiesWork closely with security, DevOps, and software teams to guarantee compliance, scalability, and operational excellenceAssess and introduce tools, patterns, and practices that enhance the performance and reliability of our SaaS platformQualificationsProven experience leading SRE transformationsExtensive hands-on expertise with Kubernetes (EKS preferred) in production settingsStrong proficiency with AWS core services (EC2, EKS, RDS, S3, ALB/NLB, IAM, CloudWatch, etc.)Expertise in Infrastructure as Code utilizing tools such as Terraform, with familiarity in GitOps workflowsSolid background in observability: metrics, visualization, logging, and tracingUnderst...

Join our dynamic Release Engineering team at Kaluza as a Site Reliability Engineer. In this pivotal role, you will play a crucial part in enhancing our software development lifecycle by developing innovative engineering solutions that empower our software teams to deploy high-quality code efficiently. Your efforts will significantly boost engineering productivity through the optimization of testing, deployment, and release processes across all Kaluza engineering teams.

Senior Product EngineerAbout the PositionCaribou is seeking a talented and experienced Senior Product Engineer to elevate our product team. This key role demands a full-stack engineer with a strong product intuition and proven history of transforming innovative ideas into successful products from inception to launch.As we harness the latest in AI and LLM technology, your expertise in these areas will be crucial. You should be well-versed in contemporary techniques and capable of building independently, even in the absence of a dedicated design team.Your primary responsibility will be to translate raw business objectives into impactful customer-facing features, ensuring a top-tier customer experience. You will guide the entire product development lifecycle, from understanding real user issues to crafting thoughtful solutions and implementing them across our technology stack.This position intersects engineering, product development, AI, and design. Collaborating closely with founders and cross-functional teams, you will tackle ambiguous challenges and deliver elegant, scalable solutions that enhance our customer experience.Your ResponsibilitiesLead the full-stack development of new product features from initial concept through to production deployment.Engage in product discovery: analyze customer feedback, map user workflows, identify opportunities, and prioritize feature development.Utilize AI and LLMs to enhance product capabilities, streamline development processes, and innovate complex tax workflows.Work alongside the tax team to deeply understand user needs and translate them into actionable product enhancements.Make informed decisions regarding infrastructure and architecture to ensure high-performance, reliable feature delivery.Enhance code quality by writing maintainable code, contributing to design systems, and refining engineering practices.Job Requirements5+ years of experience as a full-stack or product-focused engineer in a web application startup environment.Strong technical proficiency in modern front-end frameworks and back-end technologies.

At Wayve, we are dedicated to fostering a diverse, fair, and respectful workplace culture that values the unique skills and perspectives of every individual, irrespective of sex, race, religion, belief, ethnic or national origin, disability, age, citizenship, marital status, domestic partnership, sexual orientation, gender identity, veteran status, pregnancy or related conditions (including breastfeeding), or any other basis protected by applicable law.About UsEstablished in 2017, Wayve is at the forefront of developing Embodied AI technology. Our cutting-edge AI software and foundational models empower vehicles to perceive, interpret, and navigate complex environments, significantly improving the usability and safety of automated driving systems.Our mission is to create autonomous solutions that drive the world forward. Our intelligent, mapless, and hardware-agnostic AI products cater to automakers, facilitating the shift from assisted to fully automated driving.We thrive on the challenges posed by a fast-paced environment—embracing uncertainty and tackling complex problems to unlock innovative solutions. We hold ourselves to high standards while remaining humble in our pursuit of excellence, constantly evolving to pave the way for a smarter, safer future.Your contributions at Wayve will truly make a difference. We celebrate diversity, embrace new ideas, and cultivate an inclusive work environment where we support each other to make an impact.Join us at Wayve and let your career take flight!The RoleAs a Senior Site Reliability Engineer in Vehicle Software, you will ensure the reliability, observability, and safety of Wayve’s autonomous driving fleet while operating on public roads. You will collaborate at the intersection of software, hardware, and operations, transforming real-world incidents and performance bottlenecks into sustainable engineering enhancements. This role provides a clear connection between your work and the delivery of safer deployments, accelerated iterations, and expanded fleet capabilities.

Location: London, Waterloo (Hybrid, 4 days in-office - Wednesday is our designated work from home day, though you are welcome to join us in the office on Wednesdays if you prefer)At getground, we are revolutionizing one of the world's most significant asset classes: property. With over £2 billion in assets on our platform and a community of more than 30,000 users across 70 countries, we are shaping the future of asset ownership and tackling wealth inequality.Our innovative product streamlines property investing from start to finish, making real estate investment accessible to everyone.Your Key Responsibilities:Collaborating within cross-functional product teams to transition infrastructure and reliability initiatives from concept to live deployment.Thriving in a dynamic environment where autonomy and ownership are fundamental to our operations.Developing and sustaining a robust, scalable infrastructure within our GCP cloud ecosystem. Utilizing Kubernetes, Terraform, Cloudflare, and cutting-edge observability tools to ensure seamless platform functionality.Working closely with engineering teams to formulate CI/CD pipelines, enhance deployment methodologies, and advocate for reliability as a core engineering principle.Contributing to the establishment of SRE practices for a rapidly growing fintech platform. Mentoring fellow engineers as we expand our teams and influence.Your Day-to-Day Activities:Designing, implementing, and maintaining cloud infrastructure on Google Cloud Platform (GCP), ensuring it meets scalability, reliability, and security standards.Taking ownership of our Kubernetes clusters and containerization strategy, including Docker image optimization, cluster management, and deployment orchestration.Creating and optimizing Infrastructure as Code using Terraform, producing modular, testable, and well-documented configurations that adapt to our rapid growth.Managing and enhancing our Cloudflare infrastructure, including Workers for edge computing, DNS, CDN, security policies, and performance optimization.Implementing AI-powered product features in isolated and secure serverless environments.Establishing comprehensive monitoring and observability with Prometheus and Grafana, defining SLIs/SLOs, and proactively identifying potential issues before they affect users.Designing and maintaining CI/CD pipelines with appropriate quality gates, testing strategies, and deployment methodologies (blue-green, canary) to facilitate rapid deployments.

About WheelyWheely is revolutionizing premium transportation in major cities across Europe, the United States, and the Middle East. We seamlessly integrate cutting-edge technology with the artistry of five-star chauffeuring to provide an unparalleled experience that has earned the trust of over 100,000 active riders and 1,200 corporate clients.As a profitable and rapidly growing scale-up, we have raised $43M and surpassed $100M in annual revenue. Following our recent launch in New York City, we are swiftly expanding across the US and EMEA. If you take pride in your craft and are eager to contribute to our next phase of growth, we invite you to connect with us.Our infrastructure has been rebuilt almost from the ground up over the past few years, and we are now seeking to further expand our infrastructure team.As a valued member of our team, you will focus on minimizing incidents related to availability, performance, and security. You will accelerate the delivery of new features to customers by building flexible, highly available, and secure infrastructure, ensuring a smooth journey for every customer.