Senior Backend Software Engineer Python

Client Server; Greater London; Hybrid; GBP 100,000 - 120,000; Full time

Benefits offered by this job

Equity

Pension

Remote-friendly

Job summary

Client Server in London is seeking a Senior Backend Software Engineer to own the orchestration engine using Python, FastAPI and AWS in a high-velocity production environment. You’ll design for unpredictable workloads and contribute to the AI-native data platform.

Based in London with the flexibility to work from home twice a week, you’ll ship end-to-end infrastructure, write Terraform, monitor deployments and influence the product roadmap within a small, ambitious team offering equity and strong

Qualifications

• Advanced backend Python development experience.
• Strong understanding of distributed systems and scalable architectures.
• Experience with AWS and IaC (Terraform).
• Proficient in Docker, PostgreSQL and DynamoDB.

Responsibilities

• Owns the Python-based orchestration engine for scheduling, execution, retries, concurrency and cancellation.
• Designs for unpredictable workloads and builds the AI-native data plane.
• Develops end-to-end infrastructure, writes Terraform, and ships production-grade changes.
• Collaborates with customers and engineers to influence product roadmap.

Skills

Advanced backend Python

FastAPI

Distributed systems

System architecture & scalability

AWS

Terraform

Docker

PostgreSQL

DynamoDB

CI/CD

GitHub Actions

Collaboration & communication

Tools

FastAPI

Terraform

Docker

PostgreSQL

DynamoDB

GitHub Actions

Job description

Senior Backend Software Engineer Python Client Server•London, England

Senior Backend Software Engineer / Developer (Python) London / WFH to £120k

Are you a technologist with start-up experience looking for your next opportunity?

You could be progressing your career at a tech start-up that is producing an AI native data pipelining platform.

As a Senior Backend Software, you'll own the orchestration engine that controls scheduling, execution, state, retries, concurrency and cancellation, using Python, FastAPI and AWS in a high velocity production environment. You'll design for unpredictable workloads, solving challenges around capacity, back pressure and isolation, while building the AI native layer that will underpin the next generation of the product.

You'll own your infrastructure end-to-end, writing Terraform, monitoring what you ship and resolving issues in production. Working across the full development lifecycle, you'll take features from idea through to production, collaborate directly with customers to solve complex real-world problems and use your technical insight to influence the product roadmap. As part of a small, ambitious engineering team, you'll also have a genuine opportunity to shape engineering standards, culture and ways of working.

Location / WFH:

You’ll join colleagues in the London office (close to Waterloo) with flexibility to work from home twice a week.

About you:

• You have advanced backend Python coding skills, including FastAPI


• You have a good understanding of system architecture, design and scalabilityYou have experience of working on distributed systems


• You're familiar with other technology in the stack including: AWS, IaC using Terraform, Docker, PostgreSQL, DynamoDB, CI/CD, GitHub actions, Blacksmith runners


• You're collaborative and pragmatic with great communication skills, keen to input into technical discussion and decision making

What's in it for you:

• Salary to £120k


• Equity


• Impactful role with excellent career progression as the company scales


• Pension


• Remote