Senior Full-Stack Engineer: Build CX Ops Tools & APIs (Remote)

Félix; Buenos Aires; Remote; ARS 169,356,000 - 261,732,000; Full time

Benefits offered by this job

Competitive salary

Stock options

Annual bonus

Remote work

Job summary

Félix is building a global financial platform for Latinos, transitioning to an in-house, scalable CX platform. You will own features end-to-end, from React UI to Node.js services, shaping operational modules used by our CX team daily.

You will work on secure integrations, complex data views, and tools that reduce operator workload, all while maintaining high coding standards and collaboration across teams.

Qualifications

• 5+ years of experience as a Software Engineer in a fast-paced environment.
• Fluent or advanced English.
• Advanced React & UI Engineering: deep understanding of React and web standards; TypeScript proficiency expected.
• Solid Node.js / backend skills: design and build REST APIs with good patterns.
• Data modeling with relational schemas and transactional integrity.
• Security & Authorization: RBAC over sensitive data.
• Aggregation / BFF patterns: design backend-for-frontend layers.

Responsibilities

• End-to-End Feature Ownership: build modules from UI to back-end data models.
• Module Development: ship high-density data views and internal tools.
• Secure Integration Layer: implement BFFs and aggregators with strict authorization.
• Operational Efficiency: translate workflows into technical solutions to reduce handling times.
• Engineering Craft: maintain code quality, mentor peers, raise engineering standards.

Skills

5+ years exp

Fluent English

React

Node.js

TypeScript

Tools

REST API design

Job description

Félix is building a global financial platform for Latinos, transitioning to an in-house, scalable CX platform. You will own features end-to-end, from React UI to Node.js services, shaping operational modules used by our CX team daily.

You will work on secure integrations, complex data views, and tools that reduce operator workload, all while maintaining high coding standards and collaboration across teams.