Senior DevOps Engineer
Location: Fully Remote (Must be UK-based)
Duration: Initially 3 months (Very likely extensions)

Rate: £(Apply online only) per day (Outside IR35)
Start Date: ASAP

Interview Process: 1 stage, 45 minute Virtual

Unify is proud to exclusively represent a fast growing SaaS business, who is looking to engage the services of an experienced Senior DevOps Engineer on a Contract basis for initially 3 months.

INTRO:

We're looking for a Senior DevOps Engineer to lead the first two phases of a critical infrastructure transformation over a 3-6+ month period. This high-impact engagement will modernize our clients platform and expand their global infrastructure. The successful contractor will play a leading role in migrating applications from Heroku to AWS, containerizing services in ECS, and launching a production environment in a second region (US).

This is a delivery-focused contract role for someone who thrives in fast-moving environments and can work autonomously to hit the ground running.

PROJECT SCOPE - WHAT YOU'LL DELIVER:

As part of this engagement, you'll take ownership of delivering the following:

Phase 1: UK Core Infrastructure Migration:
- Containerize key services and migrate workloads from Heroku to AWS ECS
- Implement VPC networking, IAM, security groups, and other foundational components
- Build as Infrastructure as Code (IaC) using Terraform or equivalent tools

Phase 2: US Region Expansion:
- Architect and deploy a second production region in the US
- Set up global load balancing, failover, and replication strategy
- Ensure adherence to data residency and latency requirements

KEY RESPONSIBILITIES:

- Define and implement secure, scalable infrastructure patterns
- Build CI/CD pipelines and automation tooling for deployments
- Establish monitoring, logging, and alerting for distributed environments
- Create documentation and optionally provide handover training for internal teams
- Recommend optimizations for cost and performance

YOU WILL BRING:

We're looking for a technically strong, delivery-focused Senior DevOps Engineer who is:
- Independent and proactive — able to take ownership of projects with minimal oversight
- Outcome-oriented — focused on hitting clear milestones within the engagement window
- Highly collaborative — comfortable partnering with dev teams and stakeholders remotely
- Security-minded and detail-oriented.

YOU SHOULD BE EXCITED BY:

- Designing and delivering global, scalable infrastructure
- Working with fast-moving teams on ambitious modernisation efforts
- Introducing DevOps best practices and setting strong foundations
- Delivering real impact within a defined contract period

CONTRACTOR REQUIREMENTS:

Must-Have Experience:
- Proven track record leading high-impact infrastructure migrations
- Deep hands-on expertise in AWS (ECS, VPC, IAM, CloudWatch, Route 53, etc.)
- Experience migrating from Heroku to AWS or other PaaS-to-cloud transformations
- Strong Infrastructure as Code experience (Terraform preferred)
- Container orchestration (ECS, Fargate, or EKS)
- CI/CD tooling (e.g. GitHub Actions, CircleCI, etc.)
- Monitoring, observability, and cost optimisation techniques
- Familiarity with security controls and compliance frameworks

Nice-to-Have Experience:
- Global infrastructure projects and multi-region application design
- CDN and edge delivery experience (e.g. CloudFront, Akamai)
- E-commerce or high-availability platform exposure
- Legacy system refactoring experience
- Serverless architecture exposure (Lambda, API Gateway)

Please apply in the first instance by submitting your latest CV for immediate review by our Talent Team.

Thank you