Senior Software Engineer - Platform Engineering

Codat; United Kingdom; On-site; GBP 60,000 - 80,000; Full time

Job summary

A modern tech company in the United Kingdom is seeking a highly motivated Senior Backend Engineer to join their Platform & Infrastructure team. In this role, you'll take ownership of the platform services, driving their evolution and ensuring operational excellence. Your responsibilities will include designing and maintaining core services, mentoring others, and establishing best practices in a high-growth environment. The ideal candidate will have extensive experience in cloud environments and strong skills in C#.

Qualifications

• Extensive experience operating production systems in a high availability, cloud environment.
• Deep expertise in a strongly typed language, particularly C#.
• Practical experience with Infrastructure as Code tools like Terraform.
• Proficiency in modern build and deployment processes.
• Track record of building reliable systems with a focus on observability.
• Experience with Docker and Kubernetes.
• Strong foundation in networking and security.

Responsibilities

• Design, implement, and maintain core platform services and tools.
• Drive the technical roadmap for cloud infrastructure.
• Establish best practices for CI/CD and observability.
• Lead resolution of production incidents and mitigate issues.
• Mentor product engineers on platform usage and best practices.

Skills

Operating production systems

C#

Infrastructure as Code

Continuous deployment

Observability

Docker

Kubernetes

Networking

Security best practices

Tools

Terraform

CI/CD pipelines

Job description

About Codat

Codat is an advisory intelligence solution purpose-built for modern commercial banking. Through rich, specialized data, forward-looking insights, and integrated workflows, Codat empowers banking teams to deepen their relationships, grow their revenue, and simplify their day-to-day work.

Founded in 2017 and backed by JPMorgan, PayPal, Amex, Plaid, and Shopify, Codat has successfully powered over 350,000 connections to business customers’ financial systems — and is trusted by industry leaders to turn scattered information into actionable, strategic advantages in real time, every time.

The role

We are looking for a highly motivated senior backend Engineer to join our Platform & Infrastructure team. You will take ownership and drive the evolution of our mission-critical platform and services, recognising that platform is the product for our engineers. You’ll contribute to the technical roadmap, lead hands-on implementation and ensure operational excellence across our backend foundation, focussing on simplicity, scalability, performance and security. We require someone passionate about defining best practices, mentoring others and developing systems that allow our product teams to move quickly and reliably in a high-growth environment.

What you’ll do

• Design, implement and maintain core platform services and tools that enhance developer productivity, reliability and security for all engineering teams.

• Help drive the technical roadmap for our cloud infrastructure, promoting architecture principles focused on simplicity, scalability, and cost efficiency.

• Establish and advocate for best practices in areas like CI/CD pipelines, observability (logging, metrics, tracing), and automated testing to ensure operational excellence.

• Lead the resolution of complex production incidents and proactively identify and mitigate reliability and performance bottlenecks across our platform foundation.

• Mentor and guide product engineers on proper platform usage, architectural patterns, and operational best practices, embodying the "platform is the product" mindset.

What You'll Bring

• Extensive experience operating production systems in a high availability, cloud environment.

• Deep expertise in a strongly typed language and the ability to quickly deliver value in C#.

• Practical experience with Infrastructure as Code tools, like Terraform.

• Proficiency in modern build and deployment processes, including automated, progressive continuous deployments.

• A proven track record of building robust, reliable systems with a strong focus on observability and operational excellence.

• Experience with containerization and orchestration technologies, including Docker and Kubernetes.

• Strong foundation in networking and security best practices.

Our Values

• Stay Curious:
  We seek to understand 'The Why?' to make better decisions.

• Progress over polish:
  We move things forward, make clear calls, and learn through action and feedback

• Own it
  We challenge openly, commit fully and take responsibility for outcomes- good and bad