Senior Software Engineer (infrastructure focused)

Signify Technology; Greater London; Hybrid; GBP 70,000 - 90,000; Full time

Job summary

Signify Technology is seeking a Senior Software Engineer in London. The ideal candidate will have 5+ years of experience, focusing on infrastructure and DevOps, with advanced Python skills. You will lead architecture and implementation of critical infrastructure projects, ensuring best practices in security and working closely with engineering teams. The role offers a hybrid work model, requiring three days onsite in London. Join a high-performing team committed to operational excellence and strategic cloud solutions.

Qualifications

• 5+ years of experience as a software engineer with a focus on infrastructure or DevOps.
• Advanced skills in Python and experience writing production grade code and tools.
• Proven experience leading infrastructure or platform engineering projects.

Responsibilities

• Lead the architecture and implementation of infrastructure projects end to end.
• Champion DevOps and security best practices across the engineering teams.
• Design and build tools and automation to support deployment, monitoring, and scaling.
• Collaborate with product and engineering teams to ensure infrastructure supports business goals.

Skills

Python

Infrastructure

DevOps

Security best practices

Terraform

Kubernetes

CI/CD pipelines

AWS

Tools

Prometheus

Grafana

Datadog

Job description

Job Title: Senior Software Engineer

Location: London

My client is looking for a senior software engineer with a strong background in infrastructure, DevOps, and security best practices, along with advanced Python development skills. In this role, you’ll play a pivotal part in designing and leading infrastructure-focused projects, helping them scale and secure.

You’ll be joining a high performing, cross-functional engineering team where infrastructure is a first-class concern. You’ll have ownership of critical systems and the opportunity to define how they build and operate in production.

What You’ll Do

• Lead the architecture and implementation of infrastructure projects end to end
• Champion DevOps and security best practices across the engineering teams
• Design and build tools and automation to support deployment, monitoring, and scaling
• Collaborate with product and engineering teams to ensure infrastructure supports business goals
• Improve observability, incident response, and system reliability
• Help shape our cloud strategy, ideally with experience in AWS account and resource management

Requirements

• 5+ years of experience as a software engineer with a focus on infrastructure or DevOps
• Advanced skills in Python and experience writing production grade code and tools
• Proven experience leading infrastructure or platform engineering projects from start to finish
• Solid understanding of cloud infrastructure, ideally with hands-on experience in AWS
• Strong knowledge of security best practices, including secrets management, access control, and compliance frameworks
• Comfortable working in a hybrid team environment (3 days a week onsite in London)
• Experience with Terraform, Kubernetes, or CI/CD pipelines
• Familiarity with observability tooling (e.g. Prometheus, Grafana, Datadog)
• Experience mentoring or leading other engineers