CBSbutler Holdings Limited trading as CBSbutler
Open positions
IAM Design SME (Zero Trust & Cloud Architecture)
Contract IAM Design SME (6-month rolling, £540/day) on a major UK bank's identity transformation programme: writing HLDs/LLDs for Zero Trust, federation (OIDC/OAuth2/SAML/SCIM), GCP/Kubernetes/service mesh, Policy-as-Code, PKI and secrets management. Hybrid — three days per week onsite in Sheffield.
Senior DevOps / Automation Engineer
6-month, inside-IR35 remote contract for a Senior DevOps/Automation Engineer building production-grade automation and CI/CD across IBM Z mainframe and distributed platforms, using Python, Ansible Automation Platform, Jenkins/GitHub (Groovy), PostgreSQL, Grafana/Splunk observability and HashiCorp Vault for secure, auditable workflows.
Data Engineer
6-month contract (inside IR35, £460/day) Data Engineer in Telford, UK, hybrid with 2 days per week onsite. Builds and maintains ETL processes with Talend and Oracle RDS, plus GitLab CI/CD pipelines, testing, debugging, and production deployment support.
Senior Linux & DevOps SME - Onsite Contract
12-month rolling onsite contract in Basingstoke (outside IR35, £550–£650/day) for a Linux/DevOps SME who will lead Linux infrastructure, automate operations, and drive CI/CD improvements while working closely with security and engineering teams.
KDB+ Data Engineer: High-Performance Financial Pipelines
Permanent, hybrid role in London building and optimising high-performance KDB+/q and Python data pipelines for large financial datasets in the banking sector. Salary £70k-£80k per year.
Linux/DevOps SME
Contract Linux/DevOps Subject Matter Expert role, fully onsite in Basingstoke on a 12-month rolling contract (outside IR35) at £550–£650/day. The SME designs and maintains Linux infrastructure, automates with Terraform/Ansible, builds CI/CD pipelines and container platforms, and must hold active MOD DV clearance.
KDB+ Data Engineer - Financial Services
Permanent, hybrid role in the City of London for a hands-on KDB+ Data Engineer with 2-3 years of experience, building and optimising data pipelines for financial data in a banking environment using KDB+/q and Python. Salary £70K-£80K.
AWS DevOps Engineer
Six-month inside-IR35 contract (hybrid London) for an AWS DevOps Engineer on a confidential SC-cleared project, designing, building and operating secure, scalable AWS cloud platforms. Day to day is Terraform IaC, GitLab CI/CD pipelines, Docker, Lambda/serverless services and Python/Bash automation, paying £600–£675 per day.
Azure DevOps Engineer
DevSecOps Engineer (MOD / MODCloud) Rate: £645 per day inside ir35 Location: Remote Contract 6 months+ Active SC security clearance is required for this role We're looking for a Lead DevSecOps Engineer to take a key…
Data Engineer- MOD Environment
Contract Data Engineer (inside IR35, up to £600/day, until March 2027) on a long-term UK MOD defence programme, hybrid in the West Midlands. Builds and maintains Azure data pipelines and integrations using SQL and Python/PySpark to support reporting, KPIs/SLAs and data governance. Active DV clearance essential.
DV Cleared Data Engineer — Azure Data Pipelines
DV-cleared Data Engineer supporting a long-term UK defence programme in the West Midlands (hybrid). Day to day you build and maintain Azure-based data pipelines for secure data integration and reporting, using SQL, Python/PySpark, and Azure data services like Data Factory, Databricks, or Synapse.
DV Cleared Data Engineer — Azure Data Pipelines
Contract data engineer (up to £600/day Inside IR35, until March 2027) supporting a long-term UK defence programme in Malvern/West Midlands with hybrid working. Day to day involves building and maintaining Azure data pipelines using Data Factory, Databricks and Synapse to deliver operational reporting, KPIs and data governance; DV clearance is required.
Data Engineer
Contract Data Engineer (6+ months, hybrid in Malvern, inside IR35, GBP 550-600/day) supporting a Ministry of Defence programme. Day to day: building and optimising ETL/ELT pipelines, data models and secure databases with SQL and Python. Current active DV security clearance is essential.
Data Engineer for SAS Viya Migration on AWS
CBSbutler Holdings Limited trading as CBSbutler is recruiting three Data Engineers for a major data transformation programme in a secure public-sector environment in Telford. The role is hybrid, 2 days onsite, paying…
Senior Java Engineer
Contract Senior Java Engineer (6-month rolling, inside IR35) on HMRC's Tax Administration Modernisation Programme, building backend services in agile Scrum teams, including the Historical Records Store. Core stack: Java/Spring, RabbitMQ, MongoDB/Oracle, Python, Git/GitLab, plus AI-assisted development; hybrid with 2 days onsite in Telford and BPSS clearance required.