Senior Python Backend Engineer – Remote, Transaction Platform

Crystal Intelligence; Warszawa; Remote; PLN 253,807 - 338,409; Full time

Benefits offered by this job

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Job summary

Crystal Intelligence is seeking a Senior Python Engineer to enhance transaction monitoring systems with a fully remote role open to applicants in Europe. You will improve stability, maintain high code quality, and optimize performance on the Crystal platform.

The ideal candidate has over 8 years of Python experience, strong architecture skills, and proficiency in SQL/NoSQL databases. Join a dynamic team focused on client solutions and innovative technologies.

Qualifications

• 8+ years of commercial experience developing Python backend services and APIs for the web.
• Solid software architecture skills.
• Strong knowledge of SQL/NoSQL databases and data architecture.
• Experience in developing client-facing solutions.
• Product-oriented mindset.

Responsibilities

• Owning the transaction monitoring part of the Crystal platform.
• Maintaining code to high-quality standards.
• End-to-end feature design and implementation.
• Providing code reviews and constructive feedback.
• Performance optimizations including database queries.

Skills

Python backend services

SQL/NoSQL databases

Software architecture

Performance optimizations

Client-facing solutions

Fluent English

Tools

Redis

RabbitMQ

PostgreSQL

Kubernetes

AWS

Flask

Job description

Crystal Intelligence is seeking a Senior Python Engineer to enhance transaction monitoring systems with a fully remote role open to applicants in Europe. You will improve stability, maintain high code quality, and optimize performance on the Crystal platform.

The ideal candidate has over 8 years of Python experience, strong architecture skills, and proficiency in SQL/NoSQL databases. Join a dynamic team focused on client solutions and innovative technologies.