Site Reliability Engineer

Citadel Securities; Sydney; Hybrid; AUD 180,000 - 260,000; Full time

Job summary

Citadel Securities is seeking a Site Reliability Engineer to join our Sydney-based team. The role focuses on keeping our distributed trading platforms highly available, scalable, and secure, with emphasis on incident response and automation.

You will work closely with engineers across teams to optimize performance and reliability. The ideal candidate has strong UNIX/Linux skills, TCP/IP networking understanding, and experience in scripting (Bash/Python) and SQL.

Qualifications

• UNIX/Linux proficiency with strong command-line skills.
• Understanding of TCP/IP and UDP networking concepts.
• Experience writing and optimizing SQL queries.
• Proficiency in Bash and Python scripting for automation.
• Experience in trading desk environments is advantageous.
• Solid Python development experience and scripting capabilities.
• Familiarity with operating system performance tuning.

Responsibilities

• Provide first-line support and perform root cause analysis in real-time, distributed systems.
• Assist with capacity planning and deployment for large-scale applications and infrastructure.
• Coordinate application migrations and infrastructure upgrades.
• Collaborate with team members and lead troubleshooting sessions as needed.

Skills

UNIX/Linux

Networking (TCP/IP/UDP)

SQL queries

Scripting (Bash/Python)

Trading desk knowledge

Python development

OS performance tuning

Tools

Bash

Python

Job description

# Site Reliability EngineerGurugram, Sydney## Job Description**Objectives**Candidates who have less than 3 years of experience should possess:* Good knowledge of UNIX/Linux command line.* Good understanding of the usage of TCP/IP and UDP networking in applications.* Basic understanding of network routing and troubleshooting.* Basic experience in writing SQL database queries.* Basic experience in Bash, Python or other scripting language.**Candidates with 3+ years of experiences should possess:*** First line support and root cause problem diagnosis within a real-time, distributed environment.* Large-scale application and infrastructure capacity planning and deployment.* Organizing application migrations and infrastructure upgrades.**Behavioral Requirements*** Clear ability to collaborate with multiple colleagues and lead brainstorming and other live troubleshooting sessions.* Good verbal communication skills with a self-driven, inquisitive attitude to problem-solving.* Clear ability to manage multiple priorities and deadlines.* Genuine curiosity in technology and staying abreast of current technology trends.**Skills and Preferred Qualifications*** Trading desk support experience and knowledge of trading systems and applications.* Intermediate-level Python development experience.* Understanding of operating system performance tuning.*Opportunities may be available from time to time in any location in which the business is based for suitable candidates. If you are interested in a career with Citadel, please share your details and we will contact you if there is a vacancy available.*