Senior Data Engineer

Senior Data Engineer

Location:

Bristol

Contract:

Outside IR35

Rate: £68 per hour

Security Clearance: DV Cleared

Working Pattern: 5 Days On Site

Nationality Requirement:
Sole British Nationals Only

We are recruiting on behalf of a highly secure engineering and technology programme seeking an experienced Senior Data Engineer to support the design, development and delivery of secure, scalable and high-performance data solutions within a regulated environment.

This role will focus heavily on the Elastic Stack and Apache NiFi, supporting enterprise-scale data ingestion, transformation and analytics capabilities across complex secure systems.

The successful candidate will play a key role in architecting resilient data platforms, optimising real‑time and batch processing pipelines, and ensuring compliance with strict governance and security standards.

• Design and implement scalable, resilient data pipeline architectures using Elastic Stack and Apache Ni Fi
• Develop secure frameworks for data ingestion, transformation and integration
• Build and maintain batch and real‑time data processing pipelines
• Ensure high standards of data quality, integrity and traceability across all systems

• Configure, optimise and maintain Elasticsearch clusters for performance and resilience
• Develop and maintain Logstash pipelines for efficient data processing
• Create dashboards and visualisations within Kibana to support operational and strategic reporting
• Monitor and manage large-scale data flows and platform performance in real time
• Carry out troubleshooting, root cause analysis and performance tuning activities

• Work closely with security and governance teams to ensure compliance with stringent security standards
• Implement secure data handling processes including encryption, RBAC and audit logging
• Support clustering, replication and failover strategies to ensure system availability
• Develop backup, disaster recovery and data retention strategies

• Produce technical documentation covering architecture, workflows and security controls
• Support knowledge transfer and operational handovers to internal teams
• Collaborate with engineering, infrastructure and Dev Ops teams across the programme

• Strong hands‑on experience with Elasticsearch, Logstash, Kibana and Apache Ni Fi
• Proven experience designing and implementing enterprise‑scale data pipelines
• Background working within secure or regulated environments such as defence, government or finance
• Strong understanding of data ingestion and processing frameworks, real‑time and batch processing architectures, data modelling for analytics and distributed system troubleshooting and optimisation
• Knowledge of encryption and secure data handling, RBAC and audit controls, Dev Ops and CI/CD principles, and Git/version control systems
• Active DV Clearance essential
• Sole British National essential

• AWS, Azure or GCP within secure environments
• Docker and Kubernetes
• Kafka, Spark or additional data engineering technologies

Our clients and their customers come from diverse backgrounds and so do we. We hire our people from various walks of life, each of whom make our company stronger with their talent, uniqueness, and expertise. This is what makes our company special; if you want to help us grow and take this ethos to our clients, then we cannot wait to collaborate with you!