? Barcelona (Hybrid)
· Full-time Why this role exists We're looking for a Senior Site Reliability Engineer to help run and harden the platform behind Frekuent's connected vending and payment devices — tens of thousands of terminals talking to our backend, money moving through payment flows that have to stay up, and customers who notice within minutes when they don't. You'll be our dedicated SRE: you own production, the delivery pipeline and the observability that tells us something is wrong before anyone else does, working closely with the backend, firmware and data teams who build on top of it.

What You'll Do
• Own production on Azure — AKS, App Service, Function Apps, Cosmos DB, IoT Hub and Event Hub, SQL Server, Key Vault — plus the AWS queues that some integrations depend on
• Make the platform resilient to the cloud underneath it: Azure maintenance and platform upgrades, IoT Hub reconnection storms when thousands of devices come back at once, and the relationship with Azure support when something on their side breaks ours
• Own incidents end to end, from first alert to review, so infrastructure problems are handled by the person accountable for them rather than escalating to leadership
• Make our four critical flows — Payments, Connectivity, Transactions and Device Health — observable end to end: dashboards someone actually opens, and alerting that pages on symptoms customers feel rather than on every metric that moves
• Build alerting people act on. The goal is that we detect incidents before a customer or a colleague reports them; an alert that fires and gets ignored counts as a defect
• Standardise how services are deployed — GitOps, Kubernetes manifests and CI/CD in Bitbucket Pipelines — so every service ships the same way and can be rolled back
• Monitor the third parties we depend on — acquirers and payment processors, connectivity carriers, cloud status — so their outages show up on our dashboards before they show up in our support channels
• Own infrastructure-as-code in Terraform, so the environment can be rebuilt from the repository, and give product teams safe, self-service access to the infrastructure they need
• Keep context written down: service inventory, ownership, dependencies and runbooks, in-repo and current, so whoever is on call can act without paging the person who built it — and keep infrastructure work planned and visible in Jira, not only in Slack
• Own database capacity and performance with the backend and data teams: SQL Server and Cosmos DB under mixed operational and analytical load, read workloads kept off the write path, and scaling and index work planned so it never drops production connections
• Carry the infrastructure side of PCI DSS — assessments with our QSA today, and the scope, segmentation and logging of the payments platform we are building in-house
• Own domains,



DNS and certificates across every company property, so nothing expires or goes dark unnoticed
• Design an on-call model that is sustainable with one dedicated SRE and the backend team behind them, and take part in it What We're Looking For
• 6+ years in SRE, platform or DevOps roles, running production systems you were paged for
• Solid Kubernetes in production: deployments, networking, resource tuning, upgrades, and debugging a cluster that is misbehaving at 3am
• Production experience on Azure: AKS, networking, identity and access, and managed data services such as Cosmos DB and Azure SQL; infrastructure-as-code in Terraform and GitOps with Argo CD or similar
• CI/CD design, not just usage — you've built the pipeline other teams ship through
• Observability built for signal: Prometheus, Grafana and long-term storage such as Thanos, SLOs and error budgets, alert design that avoids fatigue
• Real database operations experience — capacity planning, replication and read replicas, query and index tuning, maintenance without downtime — with SQL Server a strong plus
• Comfortable reading and debugging application code — Python services with Celery and Redis most of all, and some .
NET
• Incident management

experience:
you've led an incident, written the review, and seen the follow-ups through
• Security fundamentals for cloud infrastructure: secrets management, network segmentation, hardening, and working through an external audit or penetration test
• Organisation and written communication: decision records, runbooks and service documentation are part of the work, not an afterthought
• Fluent, judged use of AI tooling: you use assistants and coding agents in daily work, give them the context they need, and know where a model may draft and where a person must decide Bonus Points
• Azure certification — AZ-104 or AZ-400
• Payments, fintech or other regulated environments; PCI DSS exposure
• IoT or connected-device fleets — Azure IoT Hub, device connectivity, telemetry at volume, rollouts to hardware in the field
• Status pages and stakeholder-facing service health reporting
• Azure cost management and right-sizing
• AWS, for the parts of the estate that live there Get to know us We're powering the future of unattended commerce. At Frekuent, we're building the critical infrastructure that makes self-service experiences smarter, simpler and more connected.



Our all-in-one payment and loyalty platform helps businesses turn one-time buyers into lifelong customers through seamless payments and rewards that keep them coming back. Since 2016, we've grown into a trusted partner for 500+ clients, processing over 100M transactions a year and connecting 2.5M+ users across Spain, France, Italy, Portugal and Singapore. 2026 has been our biggest year yet. We've grown from a team of 40 to more than 100 people, secured €6M in funding and we're just getting started. Curious about what we're building? Discover more at www.frekuent.com. How we work Principles that shape how we work:
• We embrace challenges, stay curious and look for possibilities where others might see limitations. We're not afraid to explore uncharted territory or tackle problems nobody has solved before.
• We take responsibility for our work, follow through on commitments and proactively find solutions. We don't wait for things to happen; we make them happen.
• We care about the details and take pride in doing things well. We challenge ourselves to deliver high-quality work and continuously raise the bar.
• We listen, learn from others and value different perspectives. We put the best ideas ahead of egos and believe great results come from working together.
• We stay adaptable, adapt quickly and see change as an opportunity to learn and improve. We keep moving forward, even when things don't go as planned. What’s in it for you?
• Hybrid working: Find your balance with 3 days in our Barcelona office and 2 days working remotely. Plus, enjoy 9 additional remote days each year to plan as you please.
• Flexible schedule: We trust you to manage your time and focus on what matters. Start your day anytime between 8:00 and 10:00 and organise your schedule around what works best for you.
• Lunch on us: Monthly meal vouchers to cover your lunches.
• Learning & development: Keep growing with a dedicated training allowance to invest in your skills, certifications and role-specific learning, alongside optional English classes to support your language growth.
• Time to recharge: Enjoy 23 working days of paid time off each year, because doing great work also means making time for yourself.
• Time to connect: Get to know the people behind the work through regular after-work gatherings and team-building activities. Ready to build what doesn’t exist yet? We're growing, pushing boundaries and building something that makes a difference. If you're excited by new possibilities and want to be part of what's next, we'd love to meet you. We're building the future of unattended commerce together. Come ride the frekuency with us. By applying for this job, the candidate acknowledges and agrees that any personal data contained in their application or supporting materials will be processed in accordance with Frekuent's Privacy Policy.

📌 Senior Site Reliability Engineer (Barcelona)
🏢 Frekuent
📍 Barcelona