Senior Core Platform Engineer: Distributed Systems & APIs

ABC arbitrage; Paris; Hybride; EUR 90 000 - 120 000; Plein temps

Résumé du poste

ABC arbitrage in Paris is seeking a Core Platform engineer to join our five-person team. You will design and build core services and libraries in C#/.NET and Python interfaces that power our Data & Research ecosystem.

You tackle distributed systems, performance, API design and developer tooling, taking ownership from architecture to production with a focus on reliability and scalability.

Qualifications

• 5 to 8 years of professional software development experience.
• Strong fundamentals, openness to learn new languages and frameworks.
• Experience building backend or systems software with modern languages.

Responsabilités

• Design and build core services, frameworks and libraries in C#/.NET.
• Design and maintain Python libraries, SDKs and integration layers.
• Work across distributed computing, data infrastructure and internal APIs.
• Build tooling to hide infrastructure complexity and improve productivity.
• Define APIs with consistent, idiomatic C# and Python interfaces.
• Own topics from architecture through production and recovery.
• Contribute to standards, reviews and knowledge sharing.

Connaissances

C#

C++

Rust

Go

Java

API design

Distributed systems

Performance

Developer tooling

Outils

Cassandra

Redis

Grafana

Airflow

Parquet/Iceberg

AWS

Kubernetes

Argo CD

Flux CD

GitLab

GitHub

Codex

Description du poste

ABC arbitrage in Paris is seeking a Core Platform engineer to join our five-person team. You will design and build core services and libraries in C#/.NET and Python interfaces that power our Data & Research ecosystem.

You tackle distributed systems, performance, API design and developer tooling, taking ownership from architecture to production with a focus on reliability and scalability.