Argentina onlyBackend Developer (Python/FastAPI/GCP) · Senior · LATAM
Location: Anywhere in LATAM
Job Type: Remote
Project: Fintech Cross-border payments
Time Zone: Flexible within LATAM
English Level: B2 / C1
Get to Know Us Darwoft
At Darwoft, we build digital products with heart. We're a Latin American tech company focused on creating impactful, human-centered software in partnership with clients around the world. Our remote-first culture is rooted in trust, continuous learning, and collaboration.
But above all, Darwoft is a place defined by adaptability. Growth isnt optional here its part of how we operate. Theres no stagnation or comfort zone; instead, youll find a genuine and sometimes rare openness to change. The company provides the challenges and opportunities needed to grow, along with the support to take them on.
Leadership inspires by example without expecting imitation authenticity matters deeply to us. Flexibility is in our DNA. It empowers us to make smart decisions and, more importantly, to question and improve them as processes naturally evolve over time.
Darwoft has a vibrant, genuine culture one that reflects our crew, not just a statement of intent.
If you're looking to join a team where your ideas matter and your impact is real, welcome to Darwoft.
About the Role Backend Developer (Python/FastAPI/GCP)
Were partnering with a fast-growing fintech that enables cross-border payments and remittances directly through WhatsApp, reaching millions of users across Latin America. The company is scaling rapidly and building a new identity, registration, and account-management platform designed to support secure data flows and high-volume onboarding.
Were looking for a Senior Backend Developer experienced in Python, FastAPI, and Google Cloud to help build the backend services powering this new identity and onboarding experience. Your work will shape how users register, verify their identity, and manage their information across the fintech ecosystem.
What You'll Be Doing
Design and build REST APIs using Python and FastAPI to receive, validate, and securely store user registration data.
Implement backend logic for managing emails, phone numbers, beneficiaries, and other identity-related attributes.
Work with relational databases (CloudSQL/MySQL/PostgreSQL), ensuring proper schema design and data integrity.
Integrate with third-party identity/auth providers (OAuth2, OIDC, email/SMS verification).
Define API contracts together with frontend engineers to ensure seamless data exchange.
Add robust auditing, logging, and monitoring for all data operations.
Deploy and operate services on GCP using Cloud Run, CloudSQL, IAM/Service Accounts, Secret Manager, and Pub/Sub.
Apply strong security practices for handling PII and sensitive identity data.
What You Bring
Strong hands-on experience with Python and FastAPI for production-grade API development.
Solid understanding of relational database design and experience with CloudSQL/MySQL/PostgreSQL.
Experience building secure, scalable APIs that process PII following industry best practices.
Practical experience with Google Cloud Platform (Cloud Run, CloudSQL, IAM, Secret Manager, Pub/Sub).
Knowledge of authentication and identity protocols such as OAuth2, OpenID Connect, and JWT.
Familiarity with CI/CD pipelines, Docker-based deployments, and infrastructure automation.
Strong English communication skills in a fully remote environment.
Nice to Have
Experience in fintech, payments, remittances, or identity-driven platforms.
Knowledge of event-driven systems and message brokers (GCP Pub/Sub, Kafka).
Familiarity with Terraform or other IaC tools.
Experience working with auditing, compliance, or fraud-related systems.
What Darwoft Offers (Contractor)
Contractor agreement with payment in USD
100% remote work
Argentinas public holidays
English classes
Referral program
Access to learning platforms
United States
