Software Engineer, AI
- Work closely with the founding team and gradually take ownership of central components and features.
- Collaborate with product and design teams to prototype and ship AI-powered features that enhance the user experience.
- Design and implement scalable APIs and microservices that serve AI systems in production.
- Monitor and optimize performance, cost, and accuracy of AI services.
- Design, build, and maintain AI-driven developer tools that supercharge productivity, increase code quality, and streamline release processes.
- Integrate AI-based monitoring, code analysis, and release automation into CI/CD pipelines.
- Continuously evaluate new models, frameworks, and APIs (OpenAI, Anthropic, Hugging Face, etc.) to improve engineering processes.
- Evaluate and integrate AI-powered QA solutions that automatically generate and run test cases, detect regressions, and flag anomalies in production.
- Partner with QA engineers to design intelligent validation pipelines that improve test coverage, reliability, and scalability.
- Contribute to the roadmap creation and ideation process.
- Propose new AI-driven opportunities and evaluate their impact and complexity.
- Actively shape internal standards and best practices for AI development, deployment, and measurement across the company.
Requirements
- 8+ years of professional experience in development using Kotlin or Java.
- Familiarity with key AI concepts, including large language models, prompt engineering, RAG, and multi-agent systems.
- Good understanding of computer systems fundamentals (program execution, linking, multithreading, memory management, processes, and file systems).
- Professional experience with distributed systems in production is a significant advantage.
- Passion and experience building consumer-facing products.
Nice to Have
- Ability to speak French.
Benefits
- 5 days onsite work in central Paris, near Opera.
- Health care (100% coverage).
- Maternity Leave, Paternity Leave, Second Parent Leave (salary maintained at 100%).
- 8-9 weeks of vacation per year (European summer).
- 5 weeks of paid time off (by the state); 1-2 additional weeks (RTT, based on company contract); ~11 bank holidays.
- Two weeks off in summer and one week off in winter.
- No Slack, no email, no FOMO.
- Support for relocation to Paris with visa process, 1 month of Airbnb, assistance from relocation agency, French paperwork, and French lessons.
Rewrite
## Responsibilities
- Work closely with the founding team and gradually take ownership of central components and features.
- Collaborate with product and design teams to prototype and ship AI-powered features that enhance the user experience.
- Design and implement scalable APIs and microservices that serve AI systems in production.
- Monitor and optimize performance, cost, and accuracy of AI services.
- Design, build, and maintain AI-driven developer tools that supercharge productivity, increase code quality, and streamline release processes.
- Integrate AI-based monitoring, code analysis, and release automation into CI/CD pipelines.
- Continuously evaluate new models, frameworks, and APIs (OpenAI, Anthropic, Hugging Face, etc.) to improve engineering processes.
- Evaluate and integrate AI-powered QA solutions that automatically generate and run test cases, detect regressions, and flag anomalies in production.
- Partner with QA engineers to design intelligent validation pipelines that improve test coverage, reliability, and scalability.
- Contribute to the roadmap creation and ideation process.
- Propose new AI-driven opportunities and evaluate their impact and complexity.
- Actively shape internal standards and best practices for AI development, deployment, and measurement across the company.
## Requirements
- 8+ years of professional experience in development using Kotlin or Java.
- Familiarity with key AI concepts, including large language models, prompt engineering, RAG, and multi-agent systems.
- Good understanding of computer systems fundamentals (program execution, linking, multithreading, memory management, processes, and file systems).
- Professional experience with distributed systems in production is a significant advantage.
- Passion and experience building consumer-facing products.
## Nice to Have
- Ability to speak French.
## Benefits
- 5 days onsite work in central Paris, near Opera.
- Health care (100% coverage).
- Maternity Leave, Paternity Leave, Second Parent Leave (salary maintained at 100%).
- 8-9 weeks of vacation per year (European summer).
- 5 weeks of paid time off (by the state); 1-2 additional weeks (RTT, based on company contract); ~11 bank holidays.
- Two weeks off in summer and one week off in winter.
- No Slack, no email, no FOMO.
- Support for relocation to Paris with visa process, 1 month of Airbnb, assistance from relocation agency, French paperwork, and French lessons.
Sourced via adzuna · Listed on CareerPlan, which tracks 70,000+ jobs from 20+ sources.

