Senior Founding Backend Engineer

Clera

Brazil

On-site

Who this role is best for

Best suited to experienced backend engineers with a focus on financial systems working in early-stage fintech environments.

Best fit for

Experienced backend engineers with a track record in financial systems and API integration
— “building the backend systems that power financial integrations, data workflows, and ledger foundations”
Candidates who thrive in ambiguous, product-driven environments and can shape technical direction
— “work closely with company leaders and early customers to shape product direction”
Individuals with strong cloud and DevOps skills, particularly in AWS or GCP
— “Practical cloud and DevOps experience with AWS or GCP, Docker, CI/CD, and monitoring”

Things to consider

On-site work in Brazil is required, limiting remote flexibility for candidates
— “On-site in Brazil.”
This role requires significant independence and adaptability to shifting priorities
— “Comfort working with ambiguity, changing priorities, and early-stage product decisions.”

How to stand out

Highlight experience in building and operating public APIs in your resume and interviews
— “Design, build, and operate backend services and public APIs for customers and partners.”
Emphasize hands-on experience with financial data, ledgers, and reconciliation systems
— “familiarity with financial data, ledgers, and reconciliation is valuable.”
Demonstrate your ability to set up logging, metrics, and incident response practices
— “Set up logging, metrics, alerts, and incident response practices.”
Showcase your experience with ETL pipelines and data normalization techniques
— “Build ETL pipelines with data quality checks and reconciliation logic.”
Include examples of integrating complex external APIs with authentication and retries
— “Experience integrating complex external APIs, including authentication, rate limits, retries, and webhooks.”

Pace · SteadyCollaboration · HighAutonomy · MediumDecision Impact · Team

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

design, build, and operate backend services
develop integrations with financial systems
build ETL pipelines
set up logging, metrics, alerts
collaborate with customers

Typical background

5+ years of backend engineering experiencepractical cloud and DevOps experience

Skills & requirements

Required

Backend EngineeringOLTP SystemsRelational Data ModelingREST ApisCloud And Devops ExperienceETL PipelinesObservabilityProduction Operations

Preferred

Event-driven SystemsWorkflow EnginesLLM Deployments

Stack & domain

Backend EngineeringOLTP SystemsRelational Data ModelingREST ApisCloud And DevopsETLObservabilityProduction OperationsFinancial DataLedgersReconciliationEvent-driven SystemsWorkflow EnginesLlmsProblem-solvingTeamworkAdaptabilityFintech

About the role

Original posting from Clera via Ashby

ABOUT 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.

Source: Clera careers (Ashby)