Senior Software Engineer, DevOps

Caliza builds commercial banking infrastructure for cross-border businesses. The Senior Software Engineer, DevOps owns and improves the infrastructure used to run, deploy, and monitor Caliza’s software, while also shipping production code across infrastructure and application services. The role focuses on reliability, security, observability, disaster recovery, and safe delivery of payment systems.

Responsibilities:

• Learn our infrastructure and deployment pipelines end to end
• Help design and build our agentic development environment
• Improve our monitoring and alerting so we catch payment-impacting issues before customers do
• Strengthen our disaster recovery and backup strategy, and test it
• Make our compliance evidence (access reviews, change logs, audit trails) easier to produce
• Maintain and evolve our Kubernetes-based infrastructure on AWS: AWS CDK for provisioning, Helm/kubectl for workload deployments
• Build and improve deployment pipelines with GitHub Actions
• Write and ship production code: infrastructure as code, internal tooling, and changes to our application services, such as instrumentation, health checks and performance fixes
• Own observability with New Relic: dashboards, alerting, and SLOs for critical payment flows
• Operate and scale our managed services, including messaging (CloudAMQP) and databases (MongoDB Atlas, PostgreSQL)
• Manage secrets, access controls and identity infrastructure
• Design for high availability and disaster recovery, and lead incident response and postmortems
• Optimize AWS cost and performance
• Partner with engineering and compliance on security controls and audit readiness

Requirements:

• Professional English required
• Strong programming skills in at least one general-purpose language, ideally Java or Kotlin, with a real track record of shipping and reviewing production code
• 5+ years of experience in infrastructure, DevOps or SRE roles
• Strong experience operating production systems on AWS
• Proficiency with Kubernetes in production
• Experience with infrastructure as code (AWS CDK, Terraform or similar) and Helm
• Experience building CI/CD pipelines, ideally with GitHub Actions
• Experience with monitoring and observability tools such as New Relic
• A security-first mindset: least-privilege access, secrets management, network security
• Comfort with on-call and incident response
• Hands-on experience with AI-assisted development in your daily work, with the judgment to review and question what the tools produce
• Comfort with high autonomy and ambiguity in a fast-moving, remote startup
• Clear written communication
• Candidates must be authorized to work in their country of residence
• We are not able to sponsor visas for this role
• Experience in fintech, payments or other regulated environments
• Experience supporting SOC 2 audits, which we maintain today, or ISO 27001, which we may pursue
• Experience working in Spring Boot codebases, in Java or Kotlin
• Experience with RabbitMQ and MongoDB in production
• Experience operating identity and access management systems (e.g. Keycloak)