Senior Python Engineer

Elity Global; Amsterdam; On-site; EUR 70,000 - 90,000; Full time

Job summary

A leading high-frequency trading firm is seeking a Senior Python Engineer to enhance the reliability and performance of their internal systems. This role involves building automation and tooling for managing large-scale infrastructure, primarily using Python. The ideal candidate has over 5 years of engineering experience, strong Python skills, and an automation mindset. If you're ready to take on a challenging role in a dynamic environment, we want to hear from you!

Qualifications

• 5+ years of engineering experience, preferably in a tech environment.
• Ability to deliver maintainable, well-tested systems in Python.
• Comfortable working with production infrastructure.

Responsibilities

• Build and maintain internal systems for managing infrastructure.
• Design APIs and tooling for infrastructure provisioning.
• Improve automation for deployment and configuration.

Skills

Strong Python skills

Automation mindset

Strong communication skills

Tools

Ansible or similar

Linux internals

Job description

A leading high-frequency trading firm is hiring a Senior Python Engineer to build the internal systems that run and manage a high-performance infrastructure platform. This team develops the software used to provision, configure, observe, and control large-scale Linux and network environments supporting latency-sensitive trading systems.

This is a strongly engineering-led role: you will write production Python, design and maintain core platform services and work closely with Linux, network, and platform specialists. The work has direct operational impact, and the engineering bar is high.

Responsibilities

• Build and maintain internal systems used to manage infrastructure at scale (primarily Python).
• Design APIs and tooling for infrastructure provisioning and lifecycle management.
• Improve automation for configuration, deployment, and change coordination across complex environments.
• Develop and evolve observability and operational tooling to improve reliability and performance.
• Diagnose production issues, perform root cause analysis, and drive long-term fixes.
• Collaborate across teams to plan and deliver infrastructure changes safely.

Requirements

• 5+ years of engineering experience (finance experience not required).
• Strong Python skills and the ability to deliver maintainable, well-tested systems.
• A strong automation mindset and a preference for reducing operational complexity.
• Comfortable working close to production infrastructure and operational workflows.
• Strong communication skills and ability to work effectively across teams.

Nice to Have

• Experience with infrastructure automation tools and configuration management (Ansible or similar).
• Familiarity with Linux internals, networking, virtualization or bare-metal environments.

Are you looking for your next challenge in 2026? We'd love to hear from you.