Senior Python Developer

FYST; España; A distancia; EUR 45.000 - 65.000; Jornada completa

Descripción de la vacante

A fintech company in Spain seeks an experienced developer to work on Python applications. The ideal candidate will have over 5 years of experience, especially in asynchronous programming. Responsibilities include coding, testing, and supporting integrations. The company offers remote work options, career prospects, and competitive compensation.

Servicios

20 days of vacation

Sick leaves

Additional birthday day off

Formación

• 5+ years of professional experience with Python, understanding of asynchronous programming.
• Domain knowledge in payment systems or financial flows is preferred.
• Experience with microservice architectures and API development.

Responsabilidades

• Analyze existing program code and eliminate errors.
• Develop program code for company projects.
• Test and support integrations with side services.

Conocimientos

Python 3.10+

Asynchronous programming

FastAPI

Django ORM

System design

Microservice architectures

API development

Message queues

Unit / integration tests

Grafana loki

Good English communication

Fluent Russian

Herramientas

GitLab CI / CD

Docker

Kubernetes

AWS

GCP

Descripción del empleo

WHAT YOU'LL BE WORKING ON

Analysis of the existing program code, identification and elimination of errors, development of program code for company projects, interaction with the development department, testing, support and development of integrations with side services.

WHAT YOU NEED TO SUCCEED IN THIS ROLE

• 5+ years of professional experience with Python 3.10+, with a deep understanding of its asynchronous programming model
• Domain knowledge in payment systems or financial flows
• Strong hands-on experience with asyncio, FastAPI or aiohttp, SQLAlchemy, and Django ORM
• Experience in system design (Scalability, Reliability & Fault Tolerance, Security, Performance)
• Practical experience with microservice architectures, API development, and service-to-service communication (REST, GRPC)
• Knowledge of and experience with message queues like RabbitMQ or Kafka
• Experience writing and maintaining unit / integration tests with modern testing frameworks
• Experience with Grafana loki (LogQL), Jaeger / Tempo
• Familiarity with GitLab CI / CD, Docker, Kubernetes, Helm, and cloud infrastructure (e.g., AWS, GCP) is a plus
• Knowledge of how 3ds2 flow works is a big plus
• Good English communication skills (written and spoken) and fluent Russian

OUR TECH STACK: Python 3.12, FastAPI, Django, async gRPC, asyncio, pytest, GitLab CI / CD, Kubernetes (K8s), Helm, PostgreSQL.

WHAT WE OFFER

An opportunity to make something great even greater, you can be the reason why we grow, develop, and become the best fintech company on the market!

Career prospects - we are young, we have huge ambitions, and it is important that our employees grow with us. Work with coworkers who are passionate about their business. Compensation that will fully correspond to the competence and knowledge, with yearly performance reviews. Remote typeof work. 20 days of vacation time; bank holidays; Sick leaves; Additional birthday day off. You can find out more about our team, our values, and the unique ways we celebrate our successes here: https://fyst.com/culture.