Senior Founding Backend Engineer

Engg; Brasil; Remote; BRL 229,000 - 407,000; Full time

Job summary

Clera is hiring a Senior Founding Backend Engineer in Brazil to design, build, and operate backend services and public APIs that power fintech integrations. You will work with leaders and early customers to shape product direction and establish strong engineering practices.

You will develop integrations with financial systems, build ETL pipelines with data quality checks, and set up logging, metrics, alerts, and incident response. LLMs may be applied to workflows with safeguards.

Qualifications

• 5+ years of backend engineering delivering production systems end to end.

Responsibilities

• Design, build, and operate backend services and public APIs for customers and partners.
• Develop integrations with financial systems and process data from APIs, documents, and files.
• Build ETL pipelines with data quality checks and reconciliation logic.
• Set up logging, metrics, alerts, and incident response practices.
• Collaborate with customers to prototype solutions, measure impact, and prioritize what to build.
• Apply LLMs to production workflows when they provide measurable value, with appropriate safeguards.
• Document architectural decisions, testing practices, and security standards.

Skills

Backend engineering

REST APIs

OLTP systems

Relational data modeling

AWS

GCP

Docker

CI/CD

Observability

ETL

LLMs

Tools

SQLite/SQL tooling

Job description

# Senior Founding Backend EngineerClera · BrazilLocation: BrazilSalary: $45,000 to $80,000 USDFunding: $3MPosted: Oct 15, 2026Clera is hiring a Senior Founding Backend Engineer based in Brazil. Every apply link on Engg.space goes straight to the company's own careers page - no recruiter middleman, no generic job-board form.Apply directly at Clera## Role detailsABOUT THE ROLE Join an early-stage fintech software company as a founding engineer, building the backend systems that power financial integrations, data workflows, and ledger foundations. You will work closely with company leaders and early customers to shape product direction and establish strong engineering practices. WHAT YOU'LL DO - Design, build, and operate backend services and public APIs for customers and partners. - Develop integrations with financial systems and process data from APIs, documents, and files. - Build ETL pipelines with data quality checks and reconciliation logic. - Set up logging, metrics, alerts, and incident response practices. - Collaborate with customers to prototype solutions, measure impact, and prioritize what to build. - Apply LLMs to production workflows when they provide measurable value, with appropriate safeguards. - Document architectural decisions, testing practices, and security standards. WHAT WE'RE LOOKING FOR - At least 5 years of backend engineering experience delivering production systems end to end. - Strong experience with OLTP systems, relational data modeling, REST APIs, 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 emails. - Practical cloud and DevOps experience with AWS or GCP, Docker, CI/CD, and monitoring. - Experience with ETL, observability, and production operations; familiarity with financial data, ledgers, and reconciliation is valuable. - Exposure to event-driven systems, workflow engines, or guarded production LLM deployments is a plus. - Comfort working with ambiguity, changing priorities, and early-stage product decisions. COMPENSATION & BENEFITS Base salary: $45,000 to $80,000 USD annually. Visa sponsorship is not available. LOCATION On-site in Brazil.