Enigmatic Smile

Senior DevOps Engineer (AWS Platform)

United Kingdom full-time Senior GBP68,000 - GBP68,000
full-time Senior level Technology & IT Salary listed Curated
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About the role

About the Role
We’re a security-first fintech scale-up building a globally distributed platform, and we’re looking for a Senior DevOps Engineer to help scale and mature our AWS infrastructure.
Reporting to the Head of DevOps, you’ll take ownership of a AWS platforms supporting multiple environments and services. You’ll focus on improving resilience, scalability, cost efficiency, and developer experience, while driving standardisation through infrastructure as code and platform best practices.
This is a hands-on role where you’ll collaborate closely with Engineering, WebApps, QA, and Security teams to build systems that are robust, observable, and aligned with AWS best practices and the Well-Architected Framework.
What You’ll Be Doing

Design, build, and manage AWS infrastructure using Terraform, with a focus on reusable modules and standardisation

Operate and optimise AWS services including ECS, EC2, Lambda, SQS/DLQ, CloudWatch, IAM

Develop and improve CI/CD pipelines (GitHub Actions, CodeDeploy) for consistent, reliable deployments

Build and enhance observability frameworks (logging, monitoring, alerting) across distributed systems

Implement and manage identity and access controls, including SSO and access brokering

Collaborate with Security on platform hardening and integration with security tooling (e.g. SIEM, DLP)

Contribute to platform engineering initiatives

Drive cost optimisation efforts across AWS (rightsizing, reserved capacity, scaling strategies, and cost visibility)

Troubleshoot production issues, perform root cause analysis, and implement long-term fixes

Continuously improve infrastructure through automation, documentation, and best practices

Working closely with Engineering team to design, deploy, harden and consistently keep secure containerisation and deployment

Working with Compliance teams on PCI DSS, ISO27001 and SOC2 standards, making sure infrastructure is compliant

Requirements
Required:

Strong experience as a Senior DevOps / Platform Engineer in AWS environments

Deep hands-on expertise with AWS services (ECS, EC2, Lambda, IAM, CloudWatch, SQS, etc.)

Strong knowledge of AWS networking (VPC design, routing, security groups, NACLs, private/public architectures)

Proven experience with Terraform, including building reusable modules

Openness to and experience with infrastructure-as-code approaches, with Terraform preferred but alternative IaC tools considered

Solid understanding of AWS Well-Architected Framework and cloud best practices

Experience designing and operating multi-region architectures

Strong CI/CD experience (GitHub Actions, CodeDeploy or similar)

Experience with identity and access management, including SSO

Strong Linux and containerisation knowledge (Docker, ECS)

Experience building and maintaining observability and monitoring systems

Desirable:

Experience with security tooling integrations (SIEM, DLP, etc.)

Experience working in regulated environments (PCI DSS, ISO 27001, etc.)

Experience with Terraform automation tooling (e.g. Terraform Cloud, Atlantis)

Familiarity with Internal Developer Platforms (IDP) or self-service infrastructure models

Experience with Cloudflare WAF or similar edge security tooling

Exposure to Kubernetes (EKS or Other)

Exposure to Kafka

Familiarity with MongoDB

Scripting or programming experience (any language; Rust a bonus)

Benefits

Competitive salary 68,000+ DOE

Flexible working hours and remote-first setup

Work-from-abroad flexibility

28 days holiday + bank holidays

Private medical insurance (including dependants)

Pension contributions

Training, certifications, and professional development support

Originally posted on Himalayas

Interview prep

Walk in with sharper answers.

Use this as a quick practice sheet before you speak with the employer.

Senior
Technology & IT API integration Data Analysis Remote Collaboration Writing Senior level full-time

Likely questions

  1. Tell us about work you have done that is close to the Senior DevOps Engineer (AWS Platform) role.
  2. How would you approach your first 30 days at Enigmatic Smile?
  3. Which of API integration, Data Analysis and Remote Collaboration have you used recently, and what did it help you achieve?
  4. How have you led people, improved a process, or made a hard decision in a previous role?
  5. How do you handle busy days, changing priorities, or pressure at work?

Prepare before the call

  • A recent example that proves your experience with API integration, Data Analysis and Remote Collaboration.
  • One short story with a problem, your action, and the result.
  • Two examples that show the strengths listed on your CV.
  • A clear reason why this role and company interest you.
  • Your availability, preferred work style, and salary expectations.

Ask them

  • What would success look like in the first 90 days?
  • What are the main problems this hire should help solve?
  • How does the team give feedback and measure good work?
  • What does a normal working week look like for this role?
Practice line

I am interested in the Senior DevOps Engineer (AWS Platform) role because I can bring practical experience in API integration, Data Analysis and Remote Collaboration, learn the team quickly, and contribute to the outcomes Enigmatic Smile needs from this hire.

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