4 of 4 Performance Tuning Jobs in Sheffield

Support Team supporting large-scale DB2 subsystems across multiple mainframe environments and geographies. The ideal candidate will be responsible for ensuring the performance, integrity, security, maintenance, and availability of the DB2 database environment while providing L2/L3 production support for mission-critical applications. Key Responsibilities • Manage and support …/OS environments across enterprise mainframe systems. • Monitor database performance, tuning, integrity, availability, and security. • Install, configure, test, and maintain supported DB2 versions and monitoring tools. • Provide Level 2 and Level 3 support for DB2-based applications and environments. • Support highly responsive OLTP (CICS) DB2 environments. • Develop, manage ...

deployed on IaaS or part of DBaaS. Strong understanding of consumer use case and how databases infrastructure capabilities work.• Expertise in infrastructure components, performance tuning, and capacity planning.• Understanding of, and hands on experience of, micro services, software development, infrastructure automation, api development and basic application system ...

Extend Python tooling for SLSA provenance, SBOM generation, hash/digest accuracy, and security scan aggregation (SonarQube, Sonatype IQ, SAST/Container). Optimize performance (parallel builds, caching, scope-reduced BOMs, dependency prefetch). Ensure artifact integrity (correct SHA1/SHA256 mapping, reproducible inputs, evidence modelling). Refactor legacy …/Terraform and container image metadata. Supply-chain security (SLSA, CycloneDX SBOM, digests). Experience with SonarQube, Sonatype IQ, container and SAST scanning. Proven performance tuning (caching, parallelization, dependency pruning). Compliance Awareness. Nice-to-Have Artifact signing/attestations (cosign, OCI). Terraform module and Helm chart ...

deployed on IaaS or part of DBaaS. Strong understanding of consumer use case and how databases infrastructure capabilities work.* Expertise in infrastructure components, performance tuning, and capacity planning.* Understanding of, and hands on experience of, micro services, software development, infrastructure automation, api development and basic application system ...