Site Reliability Engineer at Air Apps | London

Air Apps builds technology to help people plan, work, and live better. Founded in Lisbon in 2018 and still family-led, the company has grown to San Francisco and now London, remaining self-funded and reaching over 100 million downloads. Every day, teams at Air Apps challenge assumptions and develop AI-powered products that make a difference for users worldwide. The company values creativity and aims to improve how resources are managed and lives are impacted. Role Overview The Site Reliability Engineer (SRE) will focus on keeping Air Apps systems reliable, available, and scalable. This role connects software development and operations, using automation, monitoring, and performance tuning to reduce downtime and strengthen system resilience. This is a fully onsite position based in the London Metropolitan Area. Air Apps will consider relocation support for the right candidate. The SRE will work closely with cross-functional teams in a busy office setting. What You Will Do Design and implement systems that are scalable, reliable, and fault-tolerant across cloud platforms. Develop and maintain observability tools for monitoring, logging, and alerting (such as Prometheus, Grafana, Datadog, ELK). Automate infrastructure provisioning, deployment, and incident response using Infrastructure as Code tools like Terraform or CloudFormation. Improve system performance, scalability, and incident response processes to maximize uptime. Work with development and DevOps teams to strengthen system designs for reliability. Conduct root cause analysis and implement steps to prevent future failures. Design and maintain strategies for load balancing, failover, and disaster recovery to ensure high availability.

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.

Blockchain.com is at the forefront of revolutionizing finance, providing millions globally with secure access to cryptocurrency. Established in 2011, we have gained the trust of over 90 million wallet holders and more than 40 million verified users, facilitating over $1 trillion in crypto transactions.Blockchain is the world's premier software platform for digital assets. We operate the largest production blockchain platform globally, driven by our passion for coding and building an open, accessible, and equitable financial future, one innovative software solution at a time.We are seeking a Site Reliability Engineer to join our Core team. This role involves advocating for infrastructure best practices across our organization, enabling us to securely scale a distributed financial platform that serves millions daily.Our distributed financial platform addresses some of the most fascinating challenges in the crypto space for our vast customer base and is experiencing rapid growth. The Site Reliability Engineering (SRE) team at Blockchain merges software and systems engineering to create a platform that simplifies complexity, enhancing security, reliability, and swift product delivery.The SRE organization at Blockchain is a dynamic environment focused on continual improvement. We foster a culture where team members can propose, discuss, design, and implement changes with a high degree of autonomy. We value abstract thinking to develop exceptionally effective tools and strive to eliminate toil.As a member of the Core team, you will gain a comprehensive understanding of our products' infrastructure needs. Your role will include establishing and maintaining innovative engineering solutions to enhance our customers' experience through the development of essential tools. Importantly, you will also mentor and guide developer teams to deliver new features in a rapid, secure, and scalable manner.

ABOUT XCEPTORAt Xceptor, data is the cornerstone of our operations. Our platform is intricately designed to facilitate comprehensive data manipulation. We harness data from diverse sources, ensuring it is curated, normalized, validated, repaired, and enriched. The data produced by Xceptor is reliable and trustworthy, meeting the high standards of our clients.Recognized as a leader in the Financial Services sector, we closely collaborate with Business Users in Middle and Back-Office teams, empowering them to address their data challenges independently, removing the dependency on technology-led projects.Our mission is to empower business users within financial institutions to create automated processes that yield trustworthy data.Our values include:Client CentricityOne TeamImpactful Your Role:As a Site Reliability Engineer (SRE), you will play a vital role in ensuring the reliability, performance, security, and operability of our services in production. You will collaborate with various teams across Xceptor, setting and evolving standards for SLOs/SLIs, observability, incident response, and operational controls. Your focus will be on building automation that reduces operational toil and enables safe and swift deployments in both cloud and on-premises environments.Xceptor employs an AI-first product development lifecycle, where AI agents act as digital partners, enhancing our design, build, testing, documentation, deployment, and operational processes. We engineer reliability through established standards, automation, and measurable signals, while maintaining human oversight for intent, constraints, verification, and accountability. What You’ll Be Doing:As a Site Reliability Engineer, you will enhance the functionality and reliability of our services, ensuring they operate optimally in production.

About Air Apps Air Apps was founded in 2018 by a family in Lisbon, Portugal. The company’s mission is to build the world’s first AI-powered Personal & Entrepreneurial Resource Planner (PRP). With over 100 million downloads worldwide, Air Apps operates from offices in Lisbon and San Francisco. As a self-funded team, Air Apps focuses on developing AI-driven solutions that make a real difference in resource management for individuals across the globe. Role Overview: React Engineer The React Engineer will focus on building responsive and accessible user interfaces for web applications. This role involves close collaboration with designers, product managers, and backend engineers to turn wireframes and prototypes into polished, scalable front-end experiences. The goal is to deliver seamless and engaging interfaces that users enjoy. This posting is part of Air Apps’ effort to grow its talent pool ahead of the official job launch. Candidates will be contacted when the position becomes active. Work Environment Location: Fully onsite at the Lisbon office. Work closely with cross-functional teams in a collaborative setting. Relocation support is available. Key Responsibilities UI/UX Implementation: Develop high-quality, responsive interfaces that match design requirements and work well across browsers and devices. Frontend Technologies: Use modern JavaScript frameworks and libraries such as React, Vue.js, or Angular, along with HTML5, CSS3, and responsive design techniques to build and maintain code. Performance Optimization: Improve page load speed, rendering, and the overall user experience. Integration with APIs: Collaborate with backend teams to connect RESTful or GraphQL APIs, ensuring smooth data exchange between client and server. Accessibility and SEO: Follow best practices for accessibility (including WCAG standards) and search engine optimization to improve usability and reach.

About UsAt Trainline, we are passionate advocates for rail travel, dedicated to creating a greener and more sustainable future for travel. Our platform empowers millions of travelers to discover and book the most cost-effective tickets across various carriers, fares, and journey options through our highly-rated mobile app, website, and B2B partner channels.Join Us in Creating Great Journeys As Europe’s leading rail app, we attract over 125 million monthly visits and facilitate £5.9 billion in annual ticket sales. Collaborating with over 270 rail and coach companies across more than 40 countries, we envision a world where travel is simple, seamless, eco-friendly, and affordable. Today, as a FTSE 250 company, our diverse team of over 1,000 Trainliners from 50+ nationalities is based in London, Paris, Barcelona, Milan, Edinburgh, and Madrid. With a strong focus on growth in the UK and Europe, this is an exciting time to join us on this high-speed journey.Introducing the Reliability & Operations Engineering Team Trainline is at the forefront of technology, delivering world-class digital experiences for millions of customers. Our platform predominantly operates on AWS, utilizing cloud-native architecture, modern CI/CD pipelines, and robust DevOps and SRE methodologies.The Reliability & Operations Engineering team (ReliabilityOps) integrates SRE, Incident Management, and Database Reliability to ensure our platform remains observable, reliable, scalable, and resilient. We work closely with product engineering teams to facilitate safe delivery, respond to incidents, and consistently enhance system reliability.We are in search of a mid-level Site Reliability Engineer who will be instrumental in driving our initiatives forward. You will bring solid production experience, a growth mindset, and a readiness to challenge and be challenged, all while contributing to platform reliability and developing broader technical ownership with guidance from senior 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.

Join us on our mission to revolutionize real estate transactions, making them smarter, faster, and more seamless. The real estate sector is the largest asset class globally, yet its legal processes are still slow, manual, and underfunded. Lawyers often find themselves sifting through complex documents and fragmented information, all while clients demand quicker and more transparent due diligence. That’s where we come in. Orbital Copilot is an AI-powered assistant crafted specifically for commercial real estate law. In collaboration with experienced real estate lawyers, we’ve designed a tool that accelerates intricate due diligence processes by up to 70%, ensuring legal-grade accuracy. We have recently secured a $60 million Series B funding round to expedite our expansion in the UK and US markets. Our trusted partners include leading law firms such as Goodwin and BCLP, who rely on us to eliminate mundane tasks, allowing their legal teams to focus on delivering exceptional client service and expediting deal closures. At Orbital, you will be part of a dynamic team that is redefining the future of real estate transactions—embracing speed, collaboration, and empowerment from day one.Role Overview We are seeking our second Site Reliability Engineer to enhance our platform and reliability initiatives. This position presents an exciting chance to design, implement, and oversee our infrastructure, CI/CD pipelines, and production operations from scratch. You will have the autonomy to shape our technological framework, establish best practices, and develop scalable systems that will lay the groundwork for our future engineering endeavors. If you thrive in a startup culture and enjoy the intersection of software engineering, operations, and infrastructure, we invite you to connect with us.Your Responsibilities Include: ‍ ‍Infrastructure Management:Design and maintain a robust, cloud-based infrastructure on Azure.Develop and manage infrastructure as code (IaC) using tools like Terraform.Take ownership of our system’s reliability and scalability, establishing a solid foundation for our engineering environment.Container Deployment and Orchestration:Manage deployment and orchestration of containerized applications, ensuring efficient performance and reliability.

About Air Apps Air Apps develops AI-powered resource planning tools that help people organize their work and lives. Founded in Lisbon in 2018, the company has grown rapidly, reaching over 100 million downloads worldwide. Offices are located in Lisbon and San Francisco. The team focuses on building long-term, impactful solutions that use artificial intelligence to improve daily planning for individuals and organizations. Air Apps values creativity and encourages team members to shape products that make a difference. Role Overview: Data Engineer The Data Engineer will work onsite in Lisbon, collaborating with cross-functional teams to turn data into actionable insights. This role involves analyzing and interpreting data to improve product performance and support business decisions. Air Apps offers relocation support for those moving to Lisbon. What You Will Do Analyze user behavior, product performance, and business metrics to identify trends and opportunities. Build and maintain interactive dashboards and reports using tools such as Tableau, Looker, Power BI, or Google Data Studio. Collect, clean, and organize large datasets to ensure data quality and usability. Define and monitor KPIs for marketing, product, and business performance. Use SQL, Python, or R for data extraction, analysis, and manipulation. Work closely with product managers, engineers, and marketing to deliver insights that guide decisions. Conduct A/B testing and analyze experiments to support product improvements. What We Look For Strong analytical skills and a data-driven approach to problem solving. Experience with data visualization tools (Tableau, Looker, Power BI, or Google Data Studio). Proficiency in SQL, Python, or R. Ability to communicate insights clearly to technical and non-technical teams. Location This is a fully onsite position based in Lisbon. Relocation assistance is available.

About Air Apps Air Apps builds AI-powered tools that help people plan, work, and live better. Founded in 2018 by a family with a clear vision, the company launched in Lisbon and now operates in both Lisbon and San Francisco. Over 100 million users have downloaded Air Apps products worldwide. The company remains self-funded and focused on long-term impact. Air Apps is dedicated to pushing the boundaries of AI solutions that make a real difference in daily life. Team members help shape products that empower users across the globe. Community Manager Role The Community Manager will nurture and grow the Air Apps user community across forums, social media, and user groups. This role centers on building a welcoming, inclusive environment and sparking engaging conversations. Creativity and strong communication skills are essential for developing new ways to connect users and encourage enthusiasm for the brand. Daily work will involve collaborating with teams across the company to enhance user experience, strengthen brand loyalty, and expand the reach of the community. Location and Work Environment This is a fully onsite position based in the Lisbon office. Collaboration with cross-functional teams is a key part of the role. The company is open to supporting relocation for the right candidate.

Join Legal & General as a Graduate Site Reliability Engineer in London, where you will play a vital role in enhancing our technology operations. This entry-level position offers a unique opportunity to work alongside a dynamic tech team, ensuring our systems operate smoothly and efficiently.As a Graduate in this role, you will be involved in monitoring system performance, troubleshooting issues, and collaborating with various departments to implement automation solutions. Your contributions will help improve our infrastructure and deliver exceptional service to our clients.

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

Air Apps builds AI-powered tools for personal and entrepreneurial resource planning. Founded in Lisbon in 2018, the company has grown to San Francisco and reached over 100 million downloads worldwide. The team focuses on developing solutions that help people manage resources more effectively. Air Apps is looking for an SEO Specialist to help increase organic search visibility for its apps and websites. This role works closely with marketing, product, and development teams to design and execute SEO strategies that support growth. What You Will Do Improve search engine rankings and organic traffic for Air Apps’ digital products Work with cross-functional teams to implement SEO best practices Contribute to projects that shape how people use resource management tools Location and Work Setup This is a fully onsite position based at the Lisbon office Relocation support is available for those moving to Lisbon Join a team committed to redefining resource management through AI-driven solutions.

Air Apps develops an AI-powered Personal & Entrepreneurial Resource Planner (PRP) that helps users organize and manage resources. Founded in Lisbon in 2018, the company has reached over 100 million downloads and operates independently without outside funding. Offices are based in Lisbon and San Francisco. The team is dedicated to supporting individuals and entrepreneurs in working more efficiently and improving daily routines. AI-driven solutions are at the core of making resource planning smarter for users worldwide. Role overview The Customer Support Specialist position is a fully onsite role based in the Lisbon office. Although the hiring region is listed as the London Metropolitan Area, candidates must be willing to relocate to Lisbon. Relocation assistance is available for the right person. This role involves collaborating with multiple teams across Air Apps to support users and contribute to ongoing improvements. The position focuses on providing direct assistance to customers, helping resolve issues, and sharing feedback to enhance the product.

About Air Apps Air Apps is a family-founded company focused on building the world's first AI-powered Personal & Entrepreneurial Resource Planner (PRP). Since starting in Lisbon, Portugal in 2018, the team has grown to include offices in Lisbon and San Francisco. The company remains self-funded and has reached over 100 million downloads worldwide. Air Apps aims for long-term impact, developing AI-driven tools that help people plan, work, and live better. Team members contribute to products designed to empower individuals and entrepreneurs globally. Role Overview: Financial Analyst The Financial Analyst works as part of the finance team, supporting data-driven decisions throughout the company. This position suits early-career finance professionals who want to grow in a technology-focused setting. The role involves close collaboration with senior finance staff and other departments. Key tasks include maintaining accounting records, assisting with financial reporting, managing bank transactions, and helping to improve financial processes. Working at Air Apps offers a close look at the financial operations behind a global product company. Location and Work Setup This is a fully onsite role based in the Lisbon office. Team members work closely with colleagues from various departments in a lively, collaborative setting. Relocation support is available. Main Responsibilities Assist with month-end closing activities and related reporting. Prepare regular and ad-hoc financial reports to support business decisions. Maintain accounting records, oversee bank transactions, and help with tax compliance. Collaborate with Product, Marketing, and Operations teams to gather data and connect financial insights to business goals. Help review and reconcile expense reports, bank statements, and accounts receivable/payable balances. Support monitoring of cash flow and cost analysis projects. Contribute to ongoing improvements and automation of financial processes and tools, including ERP and expense management systems.

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.

About Air Apps Air Apps is a family-founded company focused on building the world’s first AI-driven Personal & Entrepreneurial Resource Planner (PRP). Since starting in Lisbon, Portugal in 2018, and expanding to San Francisco, the team has grown their self-funded business to over 100 million downloads worldwide. The company’s mission centers on challenging traditional approaches and expanding the reach of AI solutions that genuinely improve daily life. Employees play a direct role in shaping products that help users plan, work, and live better. Role Overview The Quality Assurance Analyst will help ensure the reliability, quality, and usability of Air Apps’ mobile and web products. This position is fully onsite at the Lisbon office and involves close collaboration with product managers, developers, and designers. Air Apps offers relocation support for those moving to Lisbon. The team values structured testing, thorough documentation, and a collaborative approach to improving product quality. What You Will Do Run smoke and regression tests to verify new releases and updates. Carry out manual test cases for both web and mobile applications. Identify, document, and report bugs clearly and accurately. Work with developers and product teams to assist in bug triage. Use test management tools such as TestRail, Zephyr, or Xray to organize and track test cases. Log issues and monitor progress using project management tools like Jira or Asana. Test functionality across a range of browsers and mobile devices. Apply basic browser developer tools for inspecting elements, monitoring requests, and troubleshooting. Help improve QA processes and maintain clear documentation standards. Location This is a fully onsite role based in Lisbon. Relocation assistance is available.

About Air Apps Air Apps builds AI-powered tools to help people plan, work, and organize their lives. Founded by a family team in 2018 in Lisbon, the company now operates from both Lisbon and San Francisco. Air Apps remains self-funded and has reached over 100 million downloads worldwide. The team focuses on long-term goals, aiming to challenge what AI can do for real users. Their current mission is to create the first AI-driven Personal & Entrepreneurial Resource Planner (PRP). At Air Apps, each person helps shape products that support users around the globe. The company values progress, creativity, and practical solutions that improve daily life.

About Air Apps Air Apps builds AI-powered tools for personal and entrepreneurial planning. Founded by a family in Lisbon in 2018, the company has grown to reach over 100 million downloads worldwide. Offices are located in Lisbon and San Francisco. Air Apps remains self-funded and values challenging established ways of working. Our Mission The team focuses on developing the Personal & Entrepreneurial Resource Planner (PRP), aiming to improve how people and organizations manage their resources. Air Apps seeks to create solutions that help users plan more effectively and make a real difference in daily life. Why Join Air Apps? Software Architects at Air Apps contribute to products that reach a global audience. Creativity and initiative shape the direction of new AI solutions. The company welcomes those ready to help transform resource management and leave a positive mark.

About xAIAt xAI, our mission is to develop advanced AI systems that can comprehend the universe and assist humanity in its quest for knowledge. Our dedicated team is small, highly motivated, and committed to engineering excellence, making it an ideal environment for individuals who thrive on challenges and curiosity. We foster a flat organizational structure where every employee plays a crucial role in driving our mission forward. We value initiative and excellence, rewarding those who consistently demonstrate strong work ethic and prioritization skills. Effective communication is essential, and all team members are expected to share their insights clearly and concisely.About the TeamYou will join a team responsible for the backend services that power our innovative products, including grok.com and our API. Our focus is on developing and maintaining highly scalable and reliable services capable of efficiently processing tens of thousands of queries per second, hosted across multiple Kubernetes clusters in both on-premises and cloud environments.About the RoleWe are looking for a candidate who meets the following criteria:In-depth expertise in Kubernetes.Proficiency with continuous deployment systems, including Buildkite and ArgoCD.Extensive experience with monitoring tools such as Prometheus, Grafana, and PagerDuty.Strong knowledge of infrastructure as code practices utilizing tools like Pulumi or Terraform.Familiarity with systems programming languages such as Rust, C++, or Go.Experience in traffic management and HTTP proxies, such as nginx and envoy.LocationThis position requires in-person attendance in London, UK. While we typically work from the office five days a week, we do provide flexibility for remote work when necessary. Candidates should be prepared to attend late meetings at least once a week to coordinate with our global teams.