Python Developer

ARM; West of England; On-site; GBP 69,000 - 116,000; Full time

Job summary

Advanced Resource Managers Ltd in Bristol is seeking a Python Developer to build and maintain low-latency Python services and APIs. The role requires a high level of UK security clearance (SC) for a 12-month contract and offers up to £84 per hour inside IR35.

You will profile and tune performance, containerise applications for Kubernetes, and contribute to CI/CD pipelines and testing. Strong Python skills, concurrency understanding, and experience with real-time systems are essential.

Qualifications

• Considerable experience in professional Python development.
• Strong understanding of concurrency and memory management and GIL implications for performance.
• Hands-on experience with Kubernetes and containerisation (Docker).
• Familiarity with CI/CD tooling and Git-based workflows.
• Proven performance profiling: CPU, memory and I/O, latency tuning and concurrency (asyncio, multiprocessing, threading).
• Experience building near real-time systems (event-driven or streaming: Kafka, RabbitMQ, WebSockets).

Responsibilities

• Design, build and maintain low-latency Python services and APIs.
• Profile and tune application performance for near real-time requirements.
• Diagnose and resolve complex issues across services, containers and Kubernetes workloads.
• Contribute to architecture and design decisions balancing performance and scalability.
• Containerise applications and manage deployments and resource tuning on Kubernetes.
• Write unit and integration tests and contribute to CI/CD pipelines.

Skills

Python

Concurrency

Performance tuning

CI/CD

Kubernetes

Docker

Asyncio

WebSockets

Tools

Kubernetes

Docker

Kafka

RabbitMQ

Git

Job description

Python Developer

Location:Bristol

Contract: 12 months
Paying:Up to£84p/h Inside IR35

Please note that due to the nature of the work, you will need a high level of UK security clearance (SC).

Responsibilities:

• Design, build and maintain low-latency, high-throughput Python services and APIs
• Profile and tune application performance to meet near real-time requirements
• Diagnose and resolve complex issues across services, containers and Kubernetes workloads
• Contribute to architecture and design decisions, balancing performance, scalability and maintainability
• Containerise applications and manage deployments, configuration and resource tuning on Kubernetes
• Write unit and integration tests and contribute to CI/CD pipelines

Essential Skills and Experience

• Considerable experience in professional Python development
• Strong understanding of concurrency, memory management and the GIL?s implications for performance
• Hands-on experience with Kubernetes and containerisation (Docker), including deploying, scaling and debugging services in clusters
• Familiarity with CI/CD tooling and Git-based workflows
• Proven performance tuning expertise: profiling CPU, memory and I/O, optimising latency and throughput, and tuning concurrency (asyncio, multiprocessing, threading)
• Experience building near real-time systems, such as event-driven or streaming architectures (e.g., Kafka, RabbitMQ, WebSockets)

Desired Skills

• Cloud experience (AWS, Azure or GCP), including managed Kubernetes (EKS, AKS, GKE)
• Performance optimisation with Cython, Rust or C extensions