Senior Software Engineer - Application Core Services | Spain | Remote

Grafana Labs, the company behind the open observability cloud, is founded on the principles of open source, open standards, open ecosystems, and open culture. Grafana Cloud, our fully managed observability platform, is flexible and built for scale. With Grafana Cloud's actually useful AI, organizations can see, understand, and act on all their disparate data to move at the speed of their ambitions. Today, more than 35 million users and 7,000+ customers – including Anthropic, Bloomberg, NVIDIA, Microsoft, and Salesforce – trust Grafana Labs to ensure reliability of their applications and systems, resolve incidents quickly, and optimize their telemetry to reduce noise and cost. We are a 100% remote company with 1,600+ team members across 40+ countries, and we’re backed by leading investors including Lightspeed Venture Partners, Sequoia Capital, GIC, Coatue, J.P. Morgan, CapitalG, and Lead Edge Capital. Learn more at grafana.com and follow us on LinkedIn and X. We’re scaling fast and staying true to what makes us different: an open-source legacy, a global collaborative culture, and a passion for meaningful work. Our team thrives in an innovation-driven environment where transparency, autonomy, and trust fuel everything we do. You may not meet every requirement, and that’s okay. If this role excites you, we’d love you to raise your hand for what could be a truly career-defining opportunity. Senior Software Engineer - Application Core Services This is a remote position. We are considering candidates in Germany, Ireland, Sweden, Spain and the UK only. The Opportunity: Application Core Services (AppCore) partners closely with our Cloud, Enterprise, and Grafana teams to deliver reliable internal and customer-facing systems that power critical parts of the Grafana business. We build on the grafana.com platform to create custom solutions and integrations across the many systems that support a modern software company. The team owns important domain areas that help keep both our customer workflows and internal business processes running smoothly. AppCore is made up of multiple squads, each focused on one or more of these domains. Our work includes maintaining the billing engine responsible for customer usage calculation, automating provisioning after a customer signs a contract, integrating with cloud marketplaces such as AWS, Azure, and GCP, and building and maintaining the user portal our customers rely on to manage their accounts. This is a team working at the intersection of product, platform, and business operations. The systems we build are critical to how Grafana scales. We are looking for engineers who enjoy solving complex workflow and systems problems, improving reliability and developer experience, and building software that directly supports both customers and internal stakeholders. As a company we are remote-first and global, we embrace people of different experiences and backgrounds to build diverse teams where every person brings a unique perspective to the software. Engineers at Grafana also have the opportunity to contribute to Open Source communities and collaborate across teams beyond their immediate scope. What You’ll Be Doing: In this role, you will help design, build, operate, and evolve the critical services that support customer lifecycle workflows and internal business operations across Grafana. Take an active role in influencing the team roadmap and your own career development Drive projects from initial ideation through implementation and into production operations Design, build, operate, and maintain critical systems with a focus on reliability, performance, and availability Build and maintain production backend services and APIs that support core customer and business workflows Contribute to customer-facing and internal web applications, including our account and management portal Design, build, and maintain integrations between Grafana systems and external business platforms such as NetSuite, Salesforce, and other third-party services Work across internal services, APIs, and external systems to build reliable data flows and business-critical automations Continuously improve the existing codebase by addressing technical debt, strengthening CI/CD pipelines, and increasing test coverage Take ownership of the services your team runs, including participating in on-call rotations Collaborate closely with engineers, product managers, and stakeholders across the company using async communication and regular video meetings Work across one or more important AppCore domains, such as billing, provisioning, cloud marketplace integrations, account management workflows, and business systems integrations Contribute to technical design discussions and help shape pragmatic solutions to business-critical problems Embrace our open-source culture and contribute to projects that may not fall directly within your team’s immediate scope As we are remote-first and our engineering organization is entirely remote, we provide guidance and meet regularly using video calls, so an independent attitude, strong communication skills, and transparency are essential. We invest heavily in developer productivity. You can use modern AI coding assistants as part of your daily workflow (your choice of tools, within security guidelines), backed by a company-funded usage budget so you can iterate quickly without unnecessary friction. We encourage pragmatic AI-assisted development: faster prototyping, test generation, refactors, documentation, and incident follow-ups—always paired with strong code review and quality standards. You’ll also have access to frontier models (e.g., GPT-Codex 5/3, Claude Opus 4.6, Gemini 3 Pro). What Makes You a Great Fit: You are comfortable working in a remote-first company where communication is critical You thrive in a collaborative, respectful, and low-ego environment You value autonomy and sound decision-making over unnecessary process and red tape You work well within a team and are motivated to support the people around you You can work independently, but you also know when to ask for help or seek guidance You are curious, pragmatic, and not afraid to ask questions You care deeply about user experience and the quality of the software you build You enjoy working across both backend services and frontend applications, and you are comfortable contributing to APIs as well as user-facing product experiences You have an interest in full-stack development and enjoy working on systems that span service boundaries, internal integrations, and web applications You enjoy solving integration challenges across internal platforms and third-party systems, and you are comfortable reasoning about data flows, system boundaries, and operational reliability You are motivated by improving systems, workflows, and the developer experience over time Requirements: Strong professional software engineering experience with at least one modern programming language such as JavaScript, TypeScript, Node.js, Go, or similar technologies Strong experience building and maintaining production backend services and APIs Solid experience with frontend development using TypeScript, ideally in modern web applications Ability to work effectively across the stack to deliver end-to-end features spanning backend systems, APIs, integrations, and customer-facing web experiences Experience designing, building, and maintaining integrations between internal services and third-party platforms Experience working with external business systems such as NetSuite, Salesforce, or similar SaaS platforms through APIs, events, or middleware Ability to design reliable system interactions across APIs, asynchronous workflows, and service boundaries Experience building and maintaining production systems and services Experience delivering projects from idea to production in a self-driven way Familiarity with owning software in a “you build it, you own it” e…