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

- **Company:** Felix
- **Location:** Rio de Janeiro, Brazil
- **Workplace:** Hybrid
- **Salary:** Salary: unknown
- **Seniority:** Senior
- **Role:** Full-stack engineering
- **Countries:** Brazil
- **Languages:** JavaScript, Python, Ruby, SQL
- **Employment type:** full_time
- **Posted:** 2026-10-20
- **Key facts:** Stack: JavaScript, Python, Ruby, SQL, Flask, FastAPI, Redis, gRPC, React, React Native, GCP, BigQuery; Experience: 5+ years; Languages: English; Equity; Unlimited PTO
- **Job page:** https://rolefalcon.com/job/83281951-senior-full-stack-engineer-integrations-team-rio-de-janeiro-felix-rio-de-janeiro

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.

To apply, open the job page above and follow its Apply link to the original posting.

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