Staff Engineer

A Staff Engineer at Sonio responsible for the Elixir/Phoenix ecosystem, architecting high-scale, resilient systems, and driving engineering velocity.

Location: Remote (France, Paris visits every 1-1.5 months)

Salary: €85k–€100k + 10% bonus

Responsibilities

• Architecting high-scale, resilient systems in Elixir/Phoenix.
• Driving engineering velocity across the squad.

Requirements

• 8+ years of software engineering experience.
• 3+ years in Elixir in production at scale.
• Expertise in web & cloud native environment.
• Deep knowledge of Elixir/Phoenix/Ecto/PostgreSQL performance.
• Experience with distributed systems in a cloud context.
• Strong architecture and API design skills.
• Written communication skills to author RFCs/ADRs.
• Technical leadership without authority.
• Fluent English; French a plus.

Benefits

• Generous salary (€85k - €100k + 10% bonus).
• Bonus for experience in a regulated environment and React/TypeScript familiarity.
• Flexible work arrangement (remote work possible with Paris visits every 1-1.5 months).