Performance & Reliability Manager – Software House – Peterborough / Hybrid (Key skills: Performance Engineering, Reliability Engineering, SRE, Load Testing, Observability, Chaos Testing, Cloud Platforms, Microservices, Leadership, CI/CD, APM Tools) Are you a technology leader passionate about driving performance, scalability, and reliability across complex software platforms? Do you thrive in high-growth environments where innovation, engineering excellence, and resilience are core values? If so, this is a rare opportunity to define the performance strategy for a fast-moving, product-focused software house. Our client, a leading Software House based in Peterborough, is seeking a Performance & Reliability Manager to lead its global performance and reliability initiatives. This role offers the chance to shape the technical vision for scalable, high-performing systems that underpin enterprise-grade software solutions used by clients worldwide. As Performance & Reliability Manager, you’ll lead cross-functional teams across development, DevOps, and infrastructure, embedding performance and resilience best practices throughout the software lifecycle. You’ll oversee system profiling, capacity planning, and test strategies — ensuring every release meets the highest standards for speed, scalability, and reliability. You’ll drive the adoption of observability and monitoring frameworks, leveraging platforms like Datadog and Dynatrace to build a proactive performance culture. You’ll champion continuous improvement, implement chaos testing programmes, and ensure teams deliver fault-tolerant, data-driven solutions that perform predictably at scale. This is an outstanding opportunity to make a strategic impact within a forward-thinking software business that values autonomy, innovation, and technical mastery. Your leadership will directly influence how world-class software is built, tested, and delivered. Location: Peterborough, UK / Hybrid working Salary: £80,000 – £95,000 Bonus Benefits Applicants must have the right to work in the UK. NOIRUKTECHREC NOIRUKREC