Senior Python Developer (Freelance)

Quick Facts

• Role: (Senior) Python Developer (Freelance)

• Work model: 100% remote (EU only)

• Contracts: Freelance B2B, long-term collaboration

• Projects: Fintech Integrations and Risk Decisioning Platform

Description

Freelance Python developer roles supporting two long-term projects: building fintech integrations and creating a risk decisioning platform. Work includes designing and shipping production services such as decision APIs, rule/experiments engines, and resilient event-driven data flows. You’ll collaborate with an international, cross-functional team and deliver reliable integrations with external providers.

Responsibilities

• Build a risk decisioning platform (rule engine, experiments, decision APIs) and new risk products

• Integrate with credit bureaus and ID/fraud/AML vendors

• Implement Kafka event-driven flows resilient to retries, duplicates, and race conditions

• Develop tools for risk analysts, including an LLM risk assistant

• Ensure service reliability using observability tools and operational practices (Datadog, on-call, runbooks)

• For the risk decisioning project: own and shape end-to-end solutions and build integrations with third-party providers (trading venues, tax providers, custodians)

Requirements

• Strong, senior-level Python skills with a track record shipping production systems

• Good spoken and written English

Benefits

• 100% remote, flexible work

• Work with an experienced development team and improve hard and soft skills

• Dev-friendly processes: Continuous Integration, Continuous Delivery, Code Review, bug bashes

• Long-term collaboration on challenging products (FinTech, B2B software, E-commerce and more)