Senior Software Engineer

Runtime; United Kingdom; Remote; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Equity

Flexible hours

Remote-friendly

35 days leave

Pension contributions

Private medical insurance

Life insurance

Laptop provided

Self-learning platforms

Job summary

Runtime is looking for a Senior Backend Engineer to join a fast-growing, Series C backed developer tools company trusted by leading engineering teams to protect and accelerate software delivery. You’ll own backend services from Python and Django to the AWS infrastructure that underpins the product.

You will build, run and scale features at global scale, design event-driven pipelines using Kafka, and own Terraform-based deployments.

Qualifications

• 5+ years building and operating distributed systems in production.
• Strong Python background, ideally with Django.
• Experience with event-driven architectures (Kafka or similar) and high-volume data pipelines.
• Comfortable with AWS.

Responsibilities

• Building and shipping backend features and optimisations that matter at global scale
• Designing event-driven services on Kafka and data pipelines that handle high volumes reliably
• Keeping systems fast, reliable and observable across a distributed architecture
• Owning the infrastructure your services run on, with Terraform and AWS
• Raising engineering standards through testing, code review and mentoring

Skills

Python

Distributed systems

Django

Event-driven architectures

AWS

Tools

Kafka

Terraform

Job description

We’re hiring a Senior Backend Engineer to join a fast-growing, Series C backed developer tools company, trusted by some of the most demanding engineering organisations in the world to protect and accelerate their software delivery.

This is a heavy backend role with real infrastructure ownership. You’ll build and run the services behind the product, from Python and Django through to the AWS infrastructure underneath. The problems cross service boundaries: one week you’re diagnosing a performance regression for an enterprise customer, the next you’re reworking how authentication or billing works at scale.

What the work looks like

• Building and shipping backend features and optimisations that matter at global scale
• Designing event-driven services on Kafka and data pipelines that handle high volumes reliably
• Keeping systems fast, reliable and observable across a distributed architecture
• Owning the infrastructure your services run on, with Terraform and AWS
• Raising engineering standards through testing, code review and mentoring

What we’re looking for

• 5+ years building and operating distributed systems in production
• Strong Python background, ideally with Django
• Experience with event-driven architectures (Kafka or similar) and high-volume data pipelines
• Comfortable with AWS

Why us

• Meaningful equity
• Small, senior team where what you say changes things
• 35 days annual leave, inclusive of optional bank holidays (take them or not)
• Birthday off
• Flexible working hours and flexible remote working
• Pension contributions via Aviva, up to 8%
• Paid sick leave, up to 10 days per year
• Individual private medical insurance via Bupa & Individual healthcare cash plan covering dental and optical
• Paternity and adoption leave
• Income protection & Life insurance
• EV vehicle leasing scheme
• High-performance laptop setup and company swag
• Self-learning platforms