Clera

Founding Engineer

São Paulo. Posted 2 days ago

The role

You will build backend systems for financial integrations, workflow orchestration and ledger foundations. You will work closely with founders and early customers to shape product direction and engineering practices.

What you will do

  • Design, build and operate backend services and public APIs for customers and partners.
  • Develop integrations with ERP systems, banks, and financial document and file sources.
  • Build ETL pipelines with data quality controls, validation and reconciliation.
  • Establish observability and operational practices, including logging, metrics, alerts, incident response and on-call readiness.
  • Collaborate with founders and customers to identify problems, prototype solutions, measure impact and decide what to build or retire.
  • Apply LLMs where they can deliver measurable value, with appropriate production guardrails.
  • Document architectural decisions and improve engineering quality, testing and security practices.

Required qualifications

  • At least 5 years of backend engineering experience delivering and owning production systems end to end.
  • Strong experience with OLTP systems, relational data modeling, REST APIs, transactional data, and consistency and availability trade-offs.
  • Experience integrating complex external APIs, including authentication, rate limits, retries and webhooks.
  • Ability to extract, validate and normalize data from sources such as PDFs, XML and email.
  • Practical cloud and DevOps skills, including AWS or GCP, Docker, CI/CD, and production logging and monitoring.
  • Experience with ETL, data quality, reconciliation and operational excellence.
  • Comfort working with ambiguity, shifting priorities and incomplete specifications.

Nice to have

  • Familiarity with accounting and ledgers, including double-entry bookkeeping and journal entries.
  • Experience with event-driven systems, workflow engines and production LLM deployments.
  • Fintech or B2B SaaS experience, founding-engineer experience, and basic React or Next.js skills.

Before you apply

  • Visa sponsorship is not available.

About the company

clera is an early-stage fintech team building backend systems for financial integrations, workflow orchestration and ledger foundations.