Senior Python Developer (Fintech, SaaS)

TL;DR

Senior Python Developer (Fintech, SaaS): Building and optimizing asynchronous backend services and 3rd party integrations with an accent on API design, payment processing, and system reliability. Focus on applying Domain-Driven Design principles, solving performance bottlenecks, and ensuring robust scalability under high loads.

Location: Remote (global)

Company

hirify.global is a product-minded engineering team behind FunnelFox, a leading platform for mobile apps revenue growth that helps optimize web-to-app funnels and subscription revenue.

What you will do

• Develop asynchronous processes with asyncio and structure services using Domain-Driven Design (DDD), Unit and integration tests.
• Develop and maintain 3rd party integrations such as SSO, Payment providers and attribution pipelines.
• Improve service quality (including reliability and availability) for third-party integrations and API-based product fetching from app stores.
• Work daily with technologies like Python, asyncio, FastAPI, ClickHouse, PostgreSQL, Redis, Kafka, Docker, and Kubernetes.
• Set up payments processing via payment providers and subscription management services.

Requirements

• Solid skill with Python 3.8+.
• Familiarity with asyncio (FastAPI or aiohttp experience is also acceptable), PostgreSQL and SQLAlchemy.
• Understanding of and adherence to software security principles.
• Ability to chase bottlenecks and optimize performance.

Nice to have

• Experience integrating payments processing (Stripe, Adyen, PayPal, etc.) and working with subscriptions.
• Familiarity with Docker, Kubernetes, ElasticSearch, Redis, Prometheus, Grafana.

Culture & Benefits

• Flexible Remote Work with a schedule that fits your life.
• Direct communication and transparency.
• Fast-track impact with quick and clear feedback from the market.
• Support for professional and personal growth.
• Free English lessons, sports, and laptop reimbursements.