Senior Python Developer

Job Posted 15 Days Ago Posted 15 Days Ago
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Poland
Senior level
eCommerce • Fintech • Payments
The Role
The Senior Python Developer will analyze existing code, develop new features, and support integrations, requiring strong programming and architectural skills in Python and related technologies.
Summary Generated by Built In

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 type of 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 

Top Skills

Aiohttp
Asyncio
AWS
Django Orm
Docker
Fastapi
GCP
Kafka
Python 3.8+
RabbitMQ
Sqlalchemy
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The Company
Riga
83 Employees
On-site Workplace
Year Founded: 2022

What We Do

FYST [faist] is a one-stop tech, payments and technology consultancy for eCommerce and FinTech businesses. It empowers entrepreneurs with a unique mix of agile technical payments capabilities, payment technologies guidance, regulatory compliance, and AML advisory services from its team of payment and banking industry leaders. Focused on technological excellence FYST offers clients a full scope of integration and software advisory, complemented by in-house payment gateways development. Designed to help businesses navigate the fast-growing cross-border eCommerce market, FYST brings together leading fintech innovators under one brand, combining unparalleled technical ingenuity, and tailored advice to help fledgling businesses successfully scale up, and receive access to more than 70 global payment methods via the network of partners.

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