Python Developer

Ncounter Limited; Plymouth; On-site; GBP 65,000 - 105,000; Full time

Job summary

Ncounter Limited is seeking a senior Reliability Engineer to strengthen our software systems in a fast-paced trading environment. You will maintain performance, stability, and availability of mission-critical applications across offices.

The role requires deep Python expertise, strong Linux experience, and a track record building automation and observability tools to improve response times and resource usage in large-scale systems.

Qualifications

• 5+ years in Python, with familiarity with version control (Git)
• Experience working in a Linux environment
• Experience in building automation tools and managing system configurations
• Knowledge of C++, KDB/q and experience with Slurm, Airflow, Kafka or AMPS
• Background in enhancing system stability, scalability and performance

Responsibilities

• Maintain the performance, stability, and availability of our software systems
• Work closely with mission-critical applications
• Develop reliability features to enhance system operations
• Improve observability of system performance
• Build automation tools to streamline operations
• Identify and resolve bottlenecks to optimize performance
• Conduct root cause analyses for incident resolution
• Collaborate with cross-functional teams to ensure seamless integration across our offices

Skills

Python proficiency

Observability

Root cause analysis

Bottlenecks optimization

Cross-team collaboration

Tools

Airflow

Git

Kafka

Linux

Python

C++

KDB/Q

Slurm

AMPS

Job description

Salary: £65,000 - 105,000 per year

Requirements:

• 5+ years in Python, with familiarity with version control (e.g., Git)
• Experience working in a Linux environment
• Experience in building automation tools and managing system configurations
• Knowledge of C++, KDB/q, and experience with technologies like Slurm, Airflow, Kafka, or AMPS
• Background in enhancing system stability, scalability, and performance
• Conducting root cause analyses to resolve incidents efficiently
• Observability skillset for monitoring and analysis of system performance
• Ability to identify and address bottlenecks to improve response times and resource usage
• Demonstrable background creating and maintaining automation solutions for system operations, deployments, and incident management

Responsibilities:

• Maintain the performance, stability, and availability of our software systems
• Work closely with mission-critical applications
• Develop reliability features to enhance system operations
• Improve observability of system performance
• Build automation tools to streamline operations
• Identify and resolve bottlenecks to optimize performance
• Conduct root cause analyses for incident resolution
• Collaborate with cross-functional teams to ensure seamless integration across our offices

Technologies:

• Airflow
• Git
• Kafka
• Linux
• Python

More:

We are a leading global investment management firm at the forefront of technology innovation, looking to harness a diverse portfolio of systematic and quantitative strategies to deliver high-quality, uncorrelated returns. Our success is built on cutting-edge technology, rigorous scientific research, and deep expertise across trading, technology, and operations. As part of our Reliability team, you will work in a dynamic and fast-paced environment where technology and innovation are central to our mission.

last updated 36 week of 2026