Rio de Janeiro, Brazil

Senior Full Stack Engineer (Integrations team) (Rio de Janeiro)

Salary: unknownHybridSeniorFull-stack engineering

JavaScriptPythonRubySQLFlaskFastAPIRedisgRPCReactReact NativeGCPBigQuery

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Felix, a software company in fintech and payments, has an open position for Senior Full Stack Engineer (Integrations team) (Rio de Janeiro). It is a hybrid position in Rio de Janeiro, Brazil. We classify it as a senior-level role in full-stack engineering. The stack in the posting includes Flask, FastAPI, Redis, gRPC, React and React Native. Candidates need 5+ years of experience. English is required. Perks named in the posting: equity and unlimited PTO. There are 35 open positions from Felix on this site, 14 of them in IT and engineering.

Posted 15 days ago · Last checked 2026-11-04

About Felix

Fintech and payments Software product company 35 open positions, 40% in IT and engineering. Most open roles: Product and design (28), Full-stack engineering (8), Data and machine learning (7).

All open jobs at Felix →

50 open full-stack engineering jobs in Brazil All open jobs at Felix →

Workplace	Hybrid
Seniority	Senior
Role	Full-stack engineering
Countries	Brazil
Languages	JavaScriptPythonRubySQL
Employment type	full_time
Key facts	Stack: JavaScript, Python, Ruby, SQL, Flask, FastAPI, Redis, gRPC, React, React Native, GCP, BigQuery · Experience: 5+ years · Languages: English · Equity · Unlimited PTO

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Senior Full Stack Engineer (Integrations team) (Rio de Janeiro)

About Felix

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