DevOps Engineer

Role: DevOps Engineer with SFTPGo experience Location: London, office based 3-4 days per week, the rest remote Start: ASAP Contract Duration: Full time role (Monday to Friday) 6 months initially (inside IR35) Our client are replacing their existing Axway Managed File Transfer platform with SFTP-Go running on Red Hat OpenShift (OCP). The solution will be delivered as a shared, secure and resilient file-transfer platform for internal and external clients. The DevOps Engineers will provide hands-on platform engineering and infrastructure-as-code capability. Working as part of the SFTP-Go delivery team, they will build and automate the platform, establish GitOps and CI/CD delivery, implement onboarding pipelines, support operational readiness and assist with the controlled migration of services from Axway. Key Responsibilities: Platform Engineering Build and deploy SFTP-Go on Red Hat OpenShift across development, test and production environments. Implement a highly available platform using PostgreSQL as the database backend and S3-compatible object storage. Create repeatable infrastructure-as-code components for platform deployment, configuration and environment promotion. Implement resilience, backup, restore and recovery arrangements in collaboration with Infrastructure and Database teams. GitOps and Configuration Automation Establish GitOps delivery using Argo CD and Git-centred, pull-request-based workflows. Ensure platform infrastructure and configuration are version controlled, reviewable, auditable and capable of automated reconciliation. Build an onboarding repository for account and file-flow definitions, with CI validation against agreed technical and security guardrails. Apply approved SFTP-Go configuration through Terraform, with secrets and SSH keys managed through HashiCorp Vault or External Secrets Operator. CI/CD Engineering Design and implement CI/CD pipelines for platform image builds, Helm chart linting and testing, policy validation and promotion between environments. Automate quality, security and compliance checks within the delivery pipeline. Develop and maintain reusable Helm charts, Terraform modules, pipeline templates and engineering standards. Promote controlled, peer-reviewed change and minimise undocumented manual configuration. Security and Platform Hardening Work with Security and Network Engineers to harden the OpenShift and SFTP-Go platform. Implement RBAC, network policies, secrets management, TLS/PKI controls and secure connectivity patterns. Support vulnerability remediation, image assurance, policy-as-code and the production-readiness approval process. Ensure configuration and deployment practices meet our clients security, audit and operational-control requirements. Observability and Operational Readiness Integrate Prometheus metrics, dashboards, logging and alerting with approved enterprise tooling. Implement and test PostgreSQL backup and restore processes. Produce operational runbooks, troubleshooting procedures and recovery documentation. Support service transition, operational acceptance, training and knowledge transfer to support teams. Axway Migration and Service Onboarding Pre-stage SFTP-Go configuration for migration waves and support testing, cutover, rollback and hypercare activities. Help translate existing Axway routing and workflow configurations into SFTP-Go Event Manager rules and actions. Create reusable documentation, templates and golden paths that enable application teams to onboard file-transfer flows consistently. Work with Integration Engineers and application teams to troubleshoot migration and onboarding issues. Essential Skills And Experience Strong hands-on Kubernetes and Red Hat OpenShift experience supporting production workloads, including deployments, services, ingress or routes, RBAC, network policies, persistent storage and storage classes. Practical experience authoring and maintaining non-trivial Helm charts. Strong Terraform experience, including reusable modules, peer review and state management for production environments. Hands-on GitOps experience using Argo CD or an equivalent tool, with Git-centred and pull-request-based workflows. Experience designing and implementing CI/CD pipelines using tools such as GitLab CI, GitHub Actions or Tekton. Strong Linux fundamentals and scripting or automation experience. Experience working with containers, registries, image build processes and deployment promotion. Working knowledge of secrets management and TLS/PKI fundamentals. A declarative, automation-first approach, with a strong preference for documented, repeatable and auditable change. Exposure to SFTP-Go , Axway or another Managed File Transfer platform. Ability to work effectively across Architecture, Infrastructure, Security, Network, Database, Operations, Integration and application teams. Desirable Skills And Experience Working knowledge of SFTP, SSH and enterprise network concepts, including firewalls, NAT, DMZ connectivity and load balancing. Experience operating PostgreSQL and implementing backup, restore and high-availability arrangements. Experience with S3-compatible object storage. Experience with HashiCorp Vault or External Secrets Operator. Experience implementing policy-as-code using Kyverno or an equivalent technology. Experience migrating a legacy platform into containers using phased or parallel-run cutovers. Experience delivering shared platforms in regulated or financial-services environments. Experience implementing Prometheus-based observability and operational alerting.