Founding Backend Engineer

Clera Labs, Inc.; Brésil; Sur place; BRL 229 000 - 407 000; Plein temps

Avantages offerts par ce poste

Remote none

Résumé du poste

Clera Labs, Inc. in Brazil seeks an experienced backend engineer to design, build, and operate backend services and public APIs for customers and partners, focusing on financial integrations and ledger foundations.

You will work closely with founders and early customers to prototype solutions, measure impact, and shape product and engineering practices, applying LLMs where value is proven while ensuring security and observability.

Qualifications

• 5+ years of backend engineering delivering and owning production systems.
• Experience with OLTP systems, relational data modeling, REST APIs.
• Experience integrating complex external APIs, preferably in financial contexts.
• Practical cloud and DevOps skills with AWS or GCP, Docker, CI/CD, and monitoring.
• Familiarity with data pipelines and reconciliation; double-entry accounting is valuable.
• Knowledge of event-driven systems and workflow tools (Kafka, SQS, Temporal, Airflow).
• Comfort with ambiguity and collaboration with customers; fintech or B2B SaaS experience a plus.

Responsabilités

• Design, build, and operate backend services and public APIs for customers and partners.
• Develop integrations with financial systems, ERPs, banks, and data sources, including robust auth and retry.
• Build ETL pipelines with data validation, quality controls, and reconciliation logic.
• Extract, validate, and normalize information from PDFs, XML, emails, and other sources.
• Establish observability and operational practices through logs, metrics, alerts, and on-call readiness.
• Work with founders and customers to identify problems and prototype solutions.
• Apply LLMs in production with guardrails and monitoring.
• Document architectural decisions and improve testing, quality, and security standards.

Connaissances

Backend engineering

OLTP systems

Relational modeling

REST APIs

Data pipelines

Double-entry accounting

Kafka / SQS

Webhooks

Temporal / Airflow

Cloud platforms

Docker

CI/CD

Monitoring

Formation

Bachelor's in Computer Science

Outils

AWS

GCP

Docker

Temporal

Airflow

Kafka

SQS

Description du poste

About the Role

Join an early-stage fintech team building backend systems for financial integrations, workflow orchestration, and ledger foundations. You will work closely with founders and early customers to prototype solutions, measure their impact, and shape product and engineering practices.

What You’ll Do

• Design, build, and operate backend services and public APIs for customers and partners.

• Develop integrations with financial systems, ERPs, banks, and data sources, including robust authentication, retry, rate-limit, and webhook handling.

• Build ETL pipelines with data validation, quality controls, and reconciliation logic.

• Extract, validate, and normalize information from PDFs, XML, emails, and other unstructured sources.

• Establish observability and operational practices through logs, metrics, alerts, incident response, and on-call readiness.

• Work with founders and customers to identify problems, prototype quickly, and decide which features to pursue or retire.

• Apply LLMs in production when there is measurable value, with appropriate guardrails and monitoring.

• Document architectural decisions and improve engineering standards for testing, quality, and security.

What We’re Looking For

• 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, and consistency and availability trade-offs.

• Experience integrating complex external APIs, preferably in financial or ERP contexts.

• Practical cloud and DevOps skills with AWS or GCP, Docker, CI/CD, and production monitoring.

• Experience with data pipelines and reconciliation; familiarity with double-entry accounting and ledgers is valuable.

• Knowledge of event-driven systems such as Kafka, SQS, or webhooks, and workflow tools such as Temporal, Airflow, or Prefect.

• Comfort with ambiguity, shifting priorities, and close collaboration with customers; fintech, B2B SaaS, or founding-engineer experience is a plus.

Compensation & Benefits

Annual base salary: $45,000 to $80,000 USD. Visa sponsorship is not available.

Location

On-site in Brazil.