Senior Site Reliability Engineer, nilo

• 5+ years in SRE, DevOps, platform, or backend engineering, with real production ownership
• Deep AWS experience across serverless and containers — Lambda, ECS Fargate, and debugging both under pressure
• Strong Terraform skills, including module design and managing state across multiple environments
• Hands-on experience with event-driven architecture (SQS, SNS, EventBridge) and a healthy respect for its failure modes
• Solid PostgreSQL: query tuning, indexing, connection management, and zero-downtime migrations
• Production experience with Datadog or a comparable observability platform (Grafana, New Relic, Honeycomb)
• Comfortable writing production backend code in [Python / Node.js / Go]
• Genuine on-call and incident response experience — you've led an incident and written the postmortem
• Strong security fundamentals: IAM, least privilege, secrets, network isolation, common web vulnerabilities
• Pragmatic about complexity — you reach for the simplest thing that meets the reliability bar
• Effective communicator who can explain a technical tradeoff without jargon
• We would like to encourage you to apply even if the technical requirements cannot be met 100%

Desirable

• We're looking for a Senior Site Reliability Engineer to take ownership of the infrastructure behind our platform. We run web applications and two mobile apps entirely on AWS, built around serverless and event-driven services and managed with Terraform
• This is a hands-on role with real ownership — you'll set the standards for how we run production rather than inherit someone else's. The split is roughly 70% infrastructure and reliability work, 30% backend development. Most of your time goes to the platform, but you'll be comfortable dropping into the application code to debug a slow query, fix a Lambda, or ship an endpoint alongside the product team
• Because we handle sensitive mental health data, reliability and security aren't abstract goals here. When someone books a session in a difficult moment, our platform needs to work
• Own our AWS infrastructure end to end — Lambda, ECS Fargate, SQS, SNS, EventBridge, SES, Cognito, DynamoDB, RDS Postgres, and DMS
• Manage everything as code in Terraform, with well-designed modules, clean state management, and a solid review workflow
• Build and maintain CI/CD pipelines with safe rollout and rollback across web, mobile backends, and infrastructure
• Design our event-driven services for resilience: retries, dead-letter queues, idempotency, graceful degradation
• Own our Datadog and Sentry setup — define SLOs, build dashboards, and keep alerting actionable instead of noisy
• Lead incident response and run blameless postmortems that actually change how we build
• Harden our security posture: IAM, secrets management, network boundaries, Cognito auth flows, and vulnerability remediation
• Protect sensitive health data and support our GDPR and compliance requirements
• Monitor and optimize AWS spend without compromising reliability
• Contribute to backend development — APIs, event consumers, data pipelines, and Postgres and DynamoDB performance
• Participate in architectural discussions and mentor engineers on operational excellence

• Contact: Henriette Stephan