---
title: 'Senior Software Engineer (Fintech Platform) at Felix Technologies, Inc.'
canonical: 'https://feeny.ai/job/senior-software-engineer-fintech-platform-felix-technologies-inc-rio-de-janeiro-g2fsjrefa7pe'
type: 'job'
last_seen: '2026-09-05'
---

# Senior Software Engineer (Fintech Platform) at Felix Technologies, Inc.

- **Company:** Felix Technologies, Inc.
- **Location:** Rio de Janeiro, Brazil
- **Employment:** full-time
- **Work type:** hybrid
- **Posted:** 2026-06-09
- **Last confirmed live:** 2026-09-05
- **Apply:** https://jobs.gem.com/felix/am9icG9zdDrXB5bqKsh4Iu1xqMOKvC3w

## Job description

## About Us

At [Félix](https://felixpago.com/), we're building the financial ecosystem for Latin immigrants in the U.S., starting with a revolution in remittances. Our core product is an AI-powered chatbot built on WhatsApp, allowing our users to send money home as easily as sending a text message. We leverage cutting-edge technology like AI, blockchain, and stablecoins to make cross-border payments faster, more affordable, and more accessible than ever before.

We are a hyper-growth Series C company, backed by over $200 million in funding from top-tier global investors, including QED, Castle Island, Switch Ventures, HTwenty, Monashees, and Andreessen Horowitz with support from General Catalyst Customer Value Fund. This isn't just about the numbers; it's a testament to the trust our investors have in our vision and our team. Additionally, Félix was selected as an “Endeavour Entrepreneur” and was a recipient of the CrossTech Fintech Startups Award. We are a group of extremely talented and dedicated high-performers, united by our shared obsession with a single goal: empowering our customers. We are all owners of Félix, driven by a bias for action and a true experimentation spirit to get things done with urgency and focus.

Joining Félix means you will be part of a team building a legacy, a company that will outlive us all. This is a rare opportunity to apply your skills to a deeply meaningful mission—serving a community that has been underserved for too long. We are a team that is fiercely loyal to each other, where radical transparency and constructive feedback are how we grow and push for excellence. We are bold, we care less about what others are doing, and more about creating sustainable value and a product that truly makes our users' lives better. We are building the future, today.

## About the Role

In this role, you will be instrumental in shaping the core architecture of our Fintech Platform. You will work in one of our three squads—Payments, Disbursements, or GRC—to build, optimize, and scale the backend microservices that drive our financial operations. This is a unique opportunity for a talented engineer who is passionate about secure, high-performance financial systems and has experience in building solutions that handle complex payment, compliance, and disbursement workflows.

Technology Stack:

- We are technology agnostic and value candidates with diverse backgrounds. While familiarity with the following is helpful, your willingness to learn and adapt is paramount:
- Front-end: React, HTTP, HTML/DOM, JavaScript, CSS, AJAX
- Back-end: Python, Flask/FastAPI, REST APIs, Redis, SQL, gRPC
- Cloud: Google Cloud services (Firestore, Cloud Storage, Pub/Sub, Google Artifact Registry, Cloud Run, BigQuery, Cloud Composer, etc.)
- Infrastructure: Kubernetes, Terraform, NewRelic, PagerDuty

## Responsibilities

- Platform Architecture & Development: Architect and implement scalable backend microservices inside the Payments, Disbursements, or GRC squad.
- Payments Squad: Develop and optimize systems for securely collecting funds from users, ensuring efficient transaction processing.
- Disbursements Squad: Design and implement robust services that handle the secure and timely disbursement of funds to beneficiaries.
- GRC Squad: Build and enhance systems for user onboarding, KYC, and compliance, ensuring adherence to regulatory standards.
- Infrastructure & Scalability: Design and manage infrastructure capable of handling millions of daily requests while maintaining the highest standards of security and performance.
- Cloud Integration: Utilize Google Cloud services and industry-standard tools to build and maintain distributed systems.
- Cross-functional Collaboration: Work closely with product, operations, compliance, and other business units to deliver holistic financial solutions.
- Mentorship & Growth: Mentor junior developers and promote best practices across the engineering team.
- Continuous Improvement: Leverage user feedback and system analytics to refine and iterate on platform capabilities.

## Requirements

- 5+ years of experience as a Software Engineer in a fast-paced, dynamic environment.
- Fluent or advanced English.
- Proven track record of building, shipping, and iterating on software applications, particularly in the Fintech domain.
- Solid foundation in algorithms and data structures.
- Experience designing and implementing web services, including REST APIs.
- Familiarity with architectural patterns such as Hexagonal Architecture, Event-Driven Architecture, and practices like A/B Testing, Feature Flags, and Gradual Rollouts.
- Domain Expertise: Experience in building and maintaining payment systems, financial disbursement solutions, or compliance-driven platforms is highly desirable.
- Knowledge of security protocols, compliance standards, and KYC/AML processes.
- A passion for developing products that make a real impact on millions.
- Commitment to continuous learning and staying abreast of emerging technologies.
- Excellent collaboration and prioritization skills in a team-oriented environment.
- Curiosity and/or experience in Fintech is a plus (equivalent competencies will also be considered).
- These are the applicable requisites, although equivalent competencies in any of the above will also be considered.

## What We Offer

- Competitive salary
- Initial stock options grant
- Annual performance bonus
- Health, dental, and vision plans
- Work model: currently fully remote, with a future transition to a hybrid setup.
- Continuous learning opportunities
- Unlimited PTO
- Paid parental leave
- Empowering opportunities for growth in a dynamic entrepreneurial environment

## Equal Opportunity Employer

At Félix, we are committed to providing equal employment opportunities to all qualified employees and applicants without regard to race, religion, nationality, sex, sexual orientation, gender identity, age, or disability. This policy applies to all terms and conditions of employment, including recruitment, hiring, placement, promotion, training, compensation, benefits, and termination.

Want to learn more about our privacy practices? Check out our [Privacy Policy](https://www.felixpago.com/en/legal).

## About Felix Technologies, Inc.

## Company Overview
- **One-liner**: Félix is an AI-powered financial services platform that enables Latino immigrants in the U.S. to send money to Latin America via WhatsApp and is expanding into broader cross-border financial products.
- **Entity Type**: Private (Series B)
- **Headquarters**: San Francisco, California, United States (also operates with a remote HQ model)
- **Founded**: 2021
- **Founders**: Manuel J Godoy (Co-Founder & CEO), Bernardo Garcia (Co-Founder)

## Core Business
- **Primary Industry**: Financial Services – Remittances and cross-border payments.
- **Target Customers**: B2C – Latino immigrants in the United States sending money to family in Latin America (Mexico, Guatemala, Honduras, El Salvador, Colombia, Ecuador, Peru, and more).
- **Mission / Purpose**: To build the financial companion for Latino immigrants in the United States, starting with remittances and expanding into the broader financial life that follows.

## Products & Services
- **Félix WhatsApp Chatbot**: Core product – an AI-powered chatbot integrated into WhatsApp that allows users to send money to Latin America in three steps. No app download required. Supports payments via credit/debit card or cash, with recipients receiving funds in bank accounts or via store pickup.
- **Broader Financial Services (in development)**: Félix is expanding beyond remittances into additional financial services for Latino immigrants, including managing money across borders with trust, speed, and simplicity.

## Market Standing
- **Valuation**: Not publicly disclosed.
- **Key Metric**: Total Funding – $99.5M (as of May 2025) across six rounds (Pre-Seed, Seed, Series A, Series B). Annual Revenue reported at $1.5M.
- **Notable Investors/Partners**: QED Investors (led Series B), Castle Island Ventures (led Series A), Switch Ventures (led Pre-Seed), HTwenty, Monashees, General Catalyst Customer Value Fund.
- **Growth Signals**:
  - Processed over $6B in transactions since inception.
  - Headcount grew ~99.2% year-over-year to 261 employees (across 15 countries).
  - Expanded services to Guatemala and Honduras after initial focus on Mexico.
  - 93 active job postings (as of late 2025/early 2026), with yearly job posting growth of +389.5%.

## Competitive Advantages
- **Deeply integrated with WhatsApp**: Users can send money without leaving a chat app they already use, lowering barriers to adoption.
- **Latino-built, culturally tailored**: Team understands the financial, cultural, and emotional reality of sending money home; support in Spanish, 24/7.
- **Technology stack**: Combines AI, blockchain, and stablecoins to make cross-border payments faster, more affordable, and more accessible.
- **Top-tier investor backing**: Over $100M from respected global fintech and crypto investors, validating the model.

## Strategic Focus
- **Expansion into full financial services**: Moving beyond remittances to become the financial companion for Latino immigrants (e.g., savings, lending, credit).
- **Geographic growth**: Adding new sending corridors (e.g., El Salvador, Colombia, Ecuador, Peru) and recipient countries.
- **Product development**: Leveraging AI and chat-based interfaces to simplify more financial tasks.

## Why Work Here
- **Culture**: Described as a hyper-growth Series B company with a “legendary” mission – a group of high-performers united by an obsession with customer empowerment. Values include inclusion, speed, and impact.
- **Remote/hybrid policy**: Remote-first HQ in San Francisco, with offices in SF and distributed across 15 countries (including Mexico, Argentina, Brazil, Colombia, etc.). Offers flexibility.
- **Engineering & growth**: Strong emphasis on tech (101 employees in technical roles). Active hiring for senior software engineers, data analysts, credit risk analysts, fraud specialists, and product managers.
- **Notable perks**: Backed by top investors; opportunity to work on cutting-edge AI, blockchain, and stablecoin technology for a mission-driven product that serves an underserved market.

## Sources
1. [jobs.gem.com](https://jobs.gem.com/felix) – Career page and company data
2. [linkedin.com](https://linkedin.com/company/felix-pago) – Company details, workforce, and financials
3. [felixpago.com](https://www.felixpago.com/en/what-is-felix) – Product description and service regions
4. [felixpago.com](https://www.felixpago.com/en/life-at-felix) – Culture, milestones, and mission

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