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Senior Software Engineer (Consumer Lending Team)

Flix
Guadalajara, MexicoPosted Jul 28, 2026
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Senior Software Engineer (Consumer Lending Team)

Félix Guadalajara, Jalisco, México

Senior Software Engineer (Consumer Lending Team)

Félix Guadalajara, Jalisco, México Hace 4 días Sé de los primeros 25 solicitantes

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Oriana Ortega

Oriana Ortega

Technical Recruiter @ Félix

About Us


At Félix, 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 B company, backed by over $100 million in funding from top-tier global investors, including QED, Castle Island, Switch Ventures, HTwenty, Monashees, and 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, the Félix founders were selected as “Endeavour Entrepreneurs” and were recipients 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 shit 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 our Consumer Lending team 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 Consumer Lending Team.
  • 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 preferred. Upper-intermediate is also fine, as long as you can communicate clearly in a professional setting.
  • 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.


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  • Nivel de antigüedad

    No corresponde

  • Tipo de empleo

    Jornada completa

  • Función laboral

    Ingeniería y Tecnología de la información

  • Sectores

    Servicios financieros y Tecnología, información y medios de comunicación

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