Senior Software Engineer (Credit Team) (Guadalajara)

About Us

Félix is building a financial ecosystem for Latin immigrants in the U.S., starting with a revolution in remittances. Our core product is an AI‑powered chatbot on WhatsApp that allows users to send money home as easily as sending a text message. We leverage AI, blockchain, and stablecoins to make cross‑border payments faster, more affordable, and more accessible.

About The Role

In this role you will be instrumental in shaping the core architecture of our Fintech Platform. You will work in our Credit team to build, optimize, and scale the backend microservices that drive our financial operations. This is a unique opportunity for a talented engineer passionate about secure, high‑performance financial systems and experienced in building solutions that handle complex payment, compliance, and disbursement workflows.

Technology Stack

• Front‑end: React, 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

• Architect and implement scalable backend microservices inside the Credit Team.
• Design and manage infrastructure capable of handling millions of daily requests while maintaining the highest standards of security and performance.
• Utilize Google Cloud services and industry‑standard tools to build and maintain distributed systems.
• Work closely with product, operations, compliance, and other business units to deliver holistic financial solutions.
• Mentor junior developers and promote best practices across the engineering team.
• 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 preferred; upper‑intermediate acceptable for clear professional communication.
• 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 in building and maintaining payment systems, financial disbursement solutions, or compliance‑driven platforms highly desirable.
• Knowledge of security protocols, compliance standards, and KYC/AML processes.
• 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 also considered).
• Equivalent competencies in any of the above will also be considered.

Benefits

• 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.