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Senior Java/Kotlin Developer

Paris💼 Full-time🗓 2022-12-12 → 2026-09-26

Core

Senior backend engineer owning features end-to-end, partnering with Product Managers to translate user needs into technical reality for a freelance marketplace platform.

Role type

Senior IC Java/Kotlin Backend Engineer

Builds

Production features for a freelance marketplace connecting freelancers with companies

Domain

Fintech/Marketplace

Deliverable

product features

Required skills

Java, Kotlin, Spring Boot, Hexagonal Architecture, API design, CI/CD, observability, prompt engineering

Preferred skills

AI coding assistants (Cursor, Gemini, Claude Code), BigQuery, dbt, Spark

Technologies

PostgreSQL, MongoDB, Elasticsearch, RabbitMQ, Redis, Google Cloud Platform, Kubernetes, Terraform, ArgoCD, Gitlab CI, Vue.js, Nuxt, TypeScript

Responsibilities

Establish partnerships with Product Managers and Designers to co-create solutions; Own features from sketch to release; Maintain high deployment frequency (70x/week) balancing speed and quality; Share best practices on AI-driven refactoring and prompt engineering; Drive architectural decisions for scalability and modularity; Maintain stewardship over the entire feature lifecycle including testing and monitoring.

Seniority

Senior, hands-on IC

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