Freelance Engineer – Python, Ruby, Data & AI Agents
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Job Description
Freelance Python/Ruby engineer building deterministic data workflows and AI agents for Adomik’s advertising performance platform. Developing backend services, APIs and analytics features with Snowflake and AWS.
Responsibilities:
- Develop and maintain Python backend services and REST APIs
- Contribute to Ruby codebases, preferably Ruby on Rails
- Build and evolve AI agents and MCP tools for advertising-data use cases
- Connect data processing, SQL queries, analytical methods and statistical reasoning to production features
- Work on revenue analysis, anomaly detection and explanations of revenue variations
- Design reliable workflows where numerical computations remain deterministic and AI models handle language-related tasks
- Work with data platforms and cloud services such as Snowflake and AWS
- Deliver features from design to production
- Contribute to testing, code reviews, CI/CD, documentation and sound engineering practices
- Collaborate closely with the Tech, Product, Data Engineering and Data Science teams
- Participate in a possible technical assessment and technical interview with the Tech team
Requirements:
- Professional experience with Python in production
- Professional experience or strong familiarity with Ruby
- Experience in data analysis or data science
- Strong SQL skills and experience working with analytical data
- Experience building backend applications or REST APIs
- Experience with Git, testing, code reviews and modern software development practices
- Ability to work independently and deliver production-ready features
- Strong communication skills and a pragmatic approach to problem solving
- Fluent English, both written and spoken, with confidence in technical discussions and documentation
- French is a plus, but not required
- Full-time availability, approximately 40 hours per week
- Availability to work Monday to Friday from 9:30 to 18:30 Paris time
- Location within two hours of Paris time throughout the year
- MCP, LLM agents, Snowflake or AWS Bedrock experience is a plus, but not mandatory
Benefits:
- Long-term freelance engagement
- 100% remote work
- Opportunity to work on real-world AI agents and advertising-data products
- Direct collaboration with Tech, Product, Data Engineering and Data Science teams
- End-to-end ownership, from data and analytics to production features
- Modern technical environment including Python, Ruby, Snowflake, AWS and AI technologies
- International team and daily collaboration in English
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