Who we are

TRLLN

is building the future of asset intelligence. Our

Tracking-as-a-Service (TaaS)

platform combines a proprietary

IoT mesh network, telemetry, and advanced analytics

to deliver real-time visibility over physical assets --- track any asset, anywhere --- with no gates, readers, or fixed infrastructure. Born inside

IFCO

, the global market leader in reusable packaging containers for fresh food, TRLLN is now a

standalone subsidiary of IFCO

: engineered for the world's largest reusable-asset network ---

400 million assets across 50+ countries

--- and combining that proven, industrial scale with the agility and focus of a tech company, from our

Barcelona HQ . What environment will you be joining?

As a

Senior Site Reliability Engineer

at

TRLLN

, you'll join the product engineering team that builds and runs the

core of our platform

: the backend and infrastructure that ingest, process, and serve

high-volume IoT telemetry

in near real time, on a

multi-tenant, cloud-native architecture

on

Google Cloud

--- GKE, Cloud Run, Managed Kafka, Pub/Sub, AlloyDB and BigQuery, all managed with Terraform. You will be our

first dedicated reliability role

. Today reliability is everyone's job and nobody's specialty: the team has strong software engineering foundations, an observability stack we are actively maturing, and availability commitments to customers that we want to back with real

SLOs, alerting and runbooks

. Your job is to turn that into a

reliability practice

--- and to make the engineers around you better at operating what they build. Security is a big part of this role.

The platform goes through external security assessments and is preparing for the

EU Cyber Resilience Act ; the operational side of that --- cloud security posture, vulnerability and supply-chain management, incident readiness,



business continuity --- will sit with you. TRLLN is a

startup-like environment backed by a global enterprise

: we move fast, iterate with purpose, and care deeply about doing things right, always balancing

pragmatism, speed and quality . And we face real scale challenges: seasonal traffic peaks from massive IoT device rollouts, a growing hardware fleet in the field, demanding reliability targets, and a platform engineered to keep growing. What we're looking for

Strong

analytical and problem-solving

skills, with a focus on delivery and quality. Demonstrated leadership in

technical decision-making

,

mentoring

, and

team collaboration . Excellent

communication skills.

Able to explain complex systems and trade-offs clearly, both verbally and in writing. An

enabler mindset . You make the team better. What you bring

Proven experience

operating high-volume / high-traffic distributed systems in production

--- event streaming (Kafka, Pub/Sub or similar), telemetry or time-series data, performance under real load, and capacity planning for traffic peaks. Strong

reliability engineering

background: experience working with SLIs/SLOs and error budgets, alerting design, incident management, blameless postmortems. Hands-on with the

observability stack : Prometheus / OpenTelemetry / Grafana or a cloud-native equivalent (we use Cloud Monitoring + Managed Prometheus) --- metrics, logging and distributed tracing, including their cost. Solid

Kubernetes

,

Docker

and

Terraform

(or similar IaC)



experience --- networking, autoscaling, workload identity, private clusters. We run on

GCP , but experience on any major cloud transfers. Production databases : PostgreSQL (AlloyDB / Cloud SQL or equivalent) --- performance, backups, restore and failover. Platform security, hands-on : cloud security posture (IAM and least privilege, network segmentation, secrets management, encryption / KMS), WAF and rate limiting (Cloud Armor or similar), and remediating findings from external security assessments and pentests. Vulnerability management and supply chain : image and dependency scanning, SBOMs, signed and attested builds, patch cadence --- plus the operational side of security incident response and business continuity / disaster recovery. Compliance as an engineer : comfortable turning regulatory and audit requirements (EU Cyber Resilience Act, ISO 27001 / SOC 2) into controls, evidence and runbooks --- you'll help us get audit-ready. CI/CD and GitOps : pipelines as code, progressive delivery, safe rollbacks (we use GitHub Actions). You

write production code : comfortable reading and contributing to Go and/or JVM (Kotlin / Java) services, not just YAML. Automation and instrumentation are part of the job. Comfortable working in both English and Spanish. Nice to have

Cloud

FinOps

/ cost optimisation experience. Load and chaos testing. Exposure to

IoT / device fleets

or telemetry-heavy products. Security certifications (e.g. CKS, GCP Professional Cloud Security Engineer) or prior experience on an ISO 27001 / SOC 2 certification effort. What we offer

Hybrid work model

with a

versátil schedule Based in our

Barcelona HQ Comprehensive health insurance

for your family unit Salary range:

55.000€ -- 70.000€ Annual training budget

for continuous learning and growth

#J-18808-Ljbffr

📌 Senior Site Reliability Engineer (Madrid)
🏢 Tamarind Intelligence
📍 Madrid