Senior Software Engineer, DevOps

Senior Software Engineer, DevOps
About Caliza
Caliza is commercial banking infrastructure for companies that operate across borders. Most global businesses still piece together several banks, FX providers and spreadsheets to move money. Caliza replaces that with one platform and API: hold USD accounts, collect and pay in 33+ currencies, and convert between fiat and stablecoins, over local rails, SWIFT or stablecoins, in minutes instead of days. On top of that, we’re building the treasury layer: programmable accounts, approval policies, automated reconciliation and working capital, run by a customer’s finance team or their AI agents.
Our customers are importers, exporters, FX brokers, payment companies and fintechs across the Americas, Europe, Africa and Asia. We’re licensed and regulated across our core markets, and our team has built financial infrastructure at Visa, Nubank, EBANX, Flutterwave, Upstart, Intuit and Silicon Valley Bank.
Our backers
Initialized Capital, Better Tomorrow Ventures, Abstract Ventures, New Form Capital, QED Investors, Valor Capital and Quona Capital, along with the founders of Flutterwave, Chipper Cash, Rappi, Pomelo, Dock, Remesa Online and Anchorage.
About the role
Caliza moves money in real time across payment rails and countries. When our systems are down, our customers' money stops. That makes reliability, security and the ability to ship safely core to the business, not a back-office concern.
Good DevOps makes every other engineer faster and safer: you'll own the infrastructure we use to run, ship and monitor our software end to end, reporting to our security & infrastructure lead, who focuses on security while you drive DevOps. This isn't a role that only runs other people's code: you'll write and ship production code yourself, in our application services as well as our infrastructure, held to the same standards of review and testing as the rest of the team. Strong software engineering fundamentals matter as much here as infra experience: you should be comfortable reading and contributing to our codebase, not just the pipelines around it.
Location: Remote, with at least 4 hours of overlap with US Eastern time. Professional English required.
In your first six months, you'll
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.
What you'll be doing
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.
What we're looking for
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. This matters as much as your infra background, since you'll work directly in our SDLC and application codebase, not just around it.
5+ years of experience in infrastructure, DevOps or SRE roles.
Strong experience operating production systems on AWS.
Proficiency with Kubernetes in production.

Work arrangement
Yes