Senior Software Engineer (Rust)

TL;DR

Senior Software Engineer (Rust): Develops high-performance SDKs and global systems for feature flag configurations and experimentation models with an accent on Rust-based core, OpenFeature integration, and low-latency performance. Focus on architecting distributed systems, supporting advanced experimentation, and collaborating on observability and AI integration.

Location: Hybrid in Bordeaux, Grenoble, Lyon, Nantes, Paris, Sophia Antipolis (France) or Madrid (Spain)

Company

hirify.global is a global SaaS business that provides observability and security platforms for cloud applications, enabling digital transformation and infrastructure monitoring.

What you will do

• Develop high-performance SDKs, many of which share a Rust-based core, across various languages and platforms.
• Contribute to the evolution of OpenFeature and its surrounding open-source ecosystem.
• Design and implement systems supporting advanced experimentation models (e.g., mutual exclusion, holdouts, contextual multi-armed bandits).
• Architect global systems for distributing feature flag configurations and ingesting evaluations reliably and at low latency.
• Collaborate with cross-functional teams to integrate feature flagging with hirify.global’s observability and AI-assisted development products.

Requirements

• Experienced backend engineer who enjoys solving ambiguous problems through iteration and pragmatism.
• Proficient in Rust and eager to expand a shared Rust core that powers SDKs and edge components.
• Comfortable working across multiple programming languages and able to learn new ones quickly.
• Skilled at cross-team collaboration and identifying solutions that balance impact and effort.
• Must be able to work from one of the specified office locations (Bordeaux, Grenoble, Lyon, Nantes, Paris, Sophia Antipolis, France or Madrid, Spain) in a hybrid model.

Culture & Benefits

• Operates as a hybrid workplace to support work-life harmony.
• Offers a generous and competitive benefits package, including new hire stock equity (RSUs) and an employee stock purchase plan.
• Provides continuous career development and pathing opportunities.
• Supports employees with best-in-class onboarding, internal mentor, and cross-departmental buddy programs.
• Fosters a friendly and inclusive workplace culture.
• Champions professional development, diversity of thought, innovation, and work excellence.