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About Vix Technology Vix Technology is a global leader in intelligent transportation systems, automated fare collection, and transit analytics. Our technology helps millions of passengers travel every day across more than 200 cities worldwide. The UK Platform Engineering team is responsible for the cloud infrastructure and operational platforms that underpin several of Vix's critical transport solutions. We design, build, operate and continually improve secure, scalable environments supporting rail and public transport customers across production and non-production environments. We're looking for an experienced Senior Platform Engineer who enjoys solving operational challenges, modernising infrastructure, automating repetitive tasks and working closely with product, development and customer teams to deliver reliable services. The Opportunity As a Senior DevOps Engineer, you will be responsible for the operational ownership and continual improvement of multiple customer-facing and internal platforms hosted primarily on AWS. You'll work across a diverse technology estate including Linux and Windows servers, AWS cloud services, CI/CD pipelines, infrastructure as code, monitoring platforms and security tooling. The role combines project delivery with day-to-day operational support, allowing you to influence platform architecture while helping ensure high service availability for our customers. This is an ideal opportunity for someone who enjoys infrastructure engineering, cloud operations, automation and platform modernisation. Key Responsibilities Design, implement and maintain secure, highly available AWS infrastructure. Operate and support production and non-production environments across multiple products. Deliver infrastructure improvements, platform upgrades and cloud migration initiatives. Develop and maintain Infrastructure as Code using CloudFormation and/or Terraform. Build and improve CI/CD pipelines and deployment automation. Automate operational processes using scripting and configuration management tools. Monitor platform health, performance and security, proactively identifying improvements. Investigate and resolve complex infrastructure and application issues. Work closely with software engineering, product management and customer support teams. Contribute to platform architecture and technical design decisions. Participate in operational support and incident management activities. Mentor engineers and promote engineering best practices. Requirements Skills & Experience Essential Proven experience in Platform Engineering, Cloud Engineering, Site Reliability Engineering or DevOps. Strong experience administering AWS cloud environments. Experience managing Linux and Windows infrastructure. Experience with Infrastructure as Code (CloudFormation and/or Terraform). Experience developing CI/CD pipelines. Experience with automation using PowerShell, Bash or Python. Strong understanding of networking fundamentals including DNS, routing, load balancing and firewalls. Experience troubleshooting complex production environments. Understanding of monitoring, logging and observability tools. Knowledge of security best practices and DevSecOps principles. Strong communication skills and ability to collaborate across multiple technical teams. Desirable Experience with container technologies such as Docker. Experience with Kubernetes or Amazon ECS. Experience with RabbitMQ, Kafka or other messaging technologies. Experience with Splunk or similar logging platforms. Experience with AWS Systems Manager, IAM, Secrets Manager and CloudWatch. Experience working in highly regulated or customer-facing production environments. AWS certifications. What You'll Be Working With Depending on the products you support, you'll gain experience across technologies including: AWS Windows & Linux CloudFormation / Terraform GitHub Actions / CI/CD PowerShell, Bash and Python Docker Git