Head of Performance & Reliability Engineering Full-Time - Hybrid (3 days in Cambridgeshire) Up to £95,000 + Bonus This is an exceptional opportunity to join a major organisation at a pivotal stage in their digital transformation. As Head of Performance & Reliability Engineering You'll shape strategy, lead performance testing and chaos engineering initiatives, and … embed reliability best practices across engineering, DevOps, and infrastructure teams. This is a senior, strategic leadership role focused on system excellence, observability, and continuous improvement. Ideal Candidate: Proven experience leading PerformanceEngineering, Reliability, or SRE functions Deep expertise in performance testing methodologies (load, stress, spike, soak) Strong hands-on background with LoadRunner and Dynatrace (plus tools … such as NeoLoad, k6, or JMeter) Skilled in chaos engineering , resilience testing , and system scalability Experience defining and managing SLOs, SLIs, and error budgets Strong knowledge of distributed systems , cloud platforms (AWS, Azure, or GCP), and microservice architectures Proven ability to influence senior stakeholders and embed performance and reliability into the SDLC Inspirational leader with experience building, mentoring More ❯
Basingstoke, Hampshire, England, United Kingdom Hybrid/Remote Options
Opus Recruitment Solutions Ltd
Software Engineering Manager – £90k + Progression to COO | Basingstoke | Hybrid (3 Days Onsite) We’re hiring on behalf of our client for a strategic and delivery-focused Software Engineering Manager to lead a growing development organisation in Basingstoke. This is a brand-new leadership role with a clear path to COO-level progression , offering the chance to shape … engineering direction, culture, and performance from the ground up.You’ll oversee global teams across Development, Testing, DevOps, and BAU Support, driving technical excellence, delivery discipline, and people-first leadership. Working closely with Product, Sales, and Customer Delivery, you’ll ensure engineering is aligned with business goals and release cycles. Key Responsibilities: Lead and scale high-performing engineering teams Own technical architecture, code quality, and system resilience Champion engineering standards and governance in regulated environments Drive delivery across Agile, Waterfall, and hybrid methodologies Collaborate cross-functionally to support pre-sales, implementation, and support Shape a high-trust, high-performanceengineering culture What We’re Looking For: 10+ years in software engineering, 5+ in More ❯
Central London, London, United Kingdom Hybrid/Remote Options
Oscar Associates (UK) Limited
Head of Engineering - Fully Remote - £100,000-£150,000 I'm currently partnered with one of the biggest names in their industry - a genuinely market-leading organisation with world-renowned clients - and they are looking for an exceptional Head of Engineering to join them during a hugely exciting period of growth. This is a standout opportunity for a … senior engineering leader who still enjoys staying hands-on. The role is a true 50/50 split between leadership and coding, giving you both strategic influence and deep technical involvement. The position is fully remote across the UK, with a highly competitive salary of £100,000-£150,000, and some exceptional benefits. The Role As Head of Engineering, you'll take ownership of both the technical direction and the growth of the engineering function. You will be managing and mentoring a development team of 10 engineers, working directly with both the CTO and the Founder, and shaping how the business scales throughout 2026 and beyond. My client is investing heavily into their engineering organisation, and More ❯
London, South East, England, United Kingdom Hybrid/Remote Options
Oscar Technology
Head of Engineering - Fully Remote - £100,000-£150,000 I'm currently partnered with one of the biggest names in their industry - a genuinely market-leading organisation with world-renowned clients - and they are looking for an exceptional Head of Engineering to join them during a hugely exciting period of growth. This is a standout opportunity for a … senior engineering leader who still enjoys staying hands-on. The role is a true 50/50 split between leadership and coding, giving you both strategic influence and deep technical involvement. The position is fully remote across the UK, with a highly competitive salary of £100,000-£150,000, and some exceptional benefits. The Role As Head of Engineering, you'll take ownership of both the technical direction and the growth of the engineering function. You will be managing and mentoring a development team of 10 engineers, working directly with both the CTO and the Founder, and shaping how the business scales throughout 2026 and beyond. My client is investing heavily into their engineering organisation, and More ❯
London, South East, England, United Kingdom Hybrid/Remote Options
Oscar Technology
VP of Engineering - Fully Remote - £150,000-£200,000 I'm currently partnered with one of the biggest names in their industry - a genuinely market-leading organisation with world-renowned clients - and they are looking for an exceptional VP of Engineering to join them during a hugely exciting period of growth. This is a standout opportunity for a … senior engineering leader who still enjoys staying hands-on. The role is a true 50/50 split between leadership and coding, giving you both strategic influence and deep technical involvement. The position is fully remote across the UK, with a highly competitive salary of £150,000-£200,000, and some exceptional benefits. The Role As VP of Engineering, you'll take ownership of both the technical direction and the growth of the engineering function. You will be managing and mentoring a development team of 10 engineers, working directly with both the CTO and the Founder, and shaping how the business scales throughout 2026 and beyond. My client is investing heavily into their engineering organisation, and More ❯
Chief Engineer Location: Hailsham Industry: Advanced Materials/Aerospace/Defence/Engineering Salary: Competitive, permanent role An established international organisation specialising in advanced materials and precision process engineering is seeking a Chief Engineer to lead its technical function. The business focuses on advanced equipment design, and R&D activities that support aerospace, defence, and high-performanceengineering sectors. The company name will not be disclosed. This position provides technical leadership across engineering design, process development, and product delivery. It requires a blend of hands-on expertise and strategic direction, ensuring complex systems and equipment meet performance, reliability, and cost targets. The role reports to the Operations Manager and offers responsibility for shaping … capability, mentoring multidisciplinary teams, and guiding technology from concept through to customer deployment. Key Responsibilities Lead the engineering function, setting technical direction and supporting multidisciplinary teams Oversee design activities with full responsibility for technical governance and design processes Deliver engineering projects on schedule, within budget, and to defined quality and regulatory standards Work closely with R&D to More ❯
Lead SRE/Observability Engineering Lead - (Outside IR35 Contract/Remote) Location: Bristol/London HQ - Largely Remote (Occasional Travel) Day Rate: Outside IR35 - £650 to £750 p/d Duration: 3-6 Months Initial - with intention to extend Payment Terms: Monthly Our client is a FTSE100 Wealth/Asset Management firm seeking to engage a Lead SRE Engineer … instrumentation of their new Observability solution. This role will be critical in delivering against our Digital OKRs by embedding observability best practices, frameworks, and tooling across digital platforms and engineering teams. Key Responsibilities: Strategy & Roadmap: Define and drive the observability roadmap in alignment with business priorities and digital platform objectives. Champion observability-by-design standards across the Software Development … Lifecycle (SDLC). Reliability & Performance: Establish and manage SLIs, SLOs, and error budgets to track and improve system reliability. Support capacity and availability planning through real-time telemetry and predictive analytics. Instrumentation & Runbooks: Design and implement observability runbooks covering metrics, logs, traces, synthetics, and customer journey monitoring. Set standards for instrumentation, dashboards, alerting, and enable teams to self-serve More ❯
Bristol, Avon, South West, United Kingdom Hybrid/Remote Options
Sanderson Recruitment
Lead SRE/Observability Engineering Lead - (Outside IR35 Contract/Remote) Location: Bristol/London HQ - Largely Remote (Occasional Travel) Day Rate: Outside IR35 - £650 to £750 p/d Duration: 3-6 Months Initial - with intention to extend Payment Terms: Monthly Our client is a FTSE100 Wealth/Asset Management firm seeking to engage a Lead SRE Engineer … instrumentation of their new Observability solution. This role will be critical in delivering against our Digital OKRs by embedding observability best practices, frameworks, and tooling across digital platforms and engineering teams. Key Responsibilities: Strategy & Roadmap: Define and drive the observability roadmap in alignment with business priorities and digital platform objectives. Champion observability-by-design standards across the Software Development … Lifecycle (SDLC). Reliability & Performance: Establish and manage SLIs, SLOs, and error budgets to track and improve system reliability. Support capacity and availability planning through real-time telemetry and predictive analytics. Instrumentation & Runbooks: Design and implement observability runbooks covering metrics, logs, traces, synthetics, and customer journey monitoring. Set standards for instrumentation, dashboards, alerting, and enable teams to self-serve More ❯
Glasgow, City of Glasgow, United Kingdom Hybrid/Remote Options
Lorien
SQL Performance Engineer - Hybrid (Glasgow or Edinburgh) - Up to £50,000 Are you passionate about optimising high-volume data systems and solving complex performance challenges? We're hiring a Performance Engineer to join a growing tech team working on a cutting-edge financial data platform. This is a hybrid role, with 2 days in the office (Glasgow … or Edinburgh) and 3 days working from home . What You'll Be Doing Tuning and optimising complex SQL queries to improve system performance Building tooling for diagnostics and deployment risk management Automating performance testing and benchmarking across environments Collaborating with Engineering, DevOps, and Product teams to improve throughput and scalability Supporting deployment strategies for high-risk … releases Designing and testing new performance features What We're Looking For Proven experience in SQL performance tuning and query optimisation Familiarity with performance testing tools (e.g., JMeter, k6) Experience with observability platforms (e.g., Azure Monitor, Grafana) Strong problem-solving skills and a collaborative mindset Ability to develop and interpret MI for decision-making Bonus Skills Experience More ❯
Glasgow, Lanarkshire, Scotland, United Kingdom Hybrid/Remote Options
Lorien
SQL Performance Engineer - Hybrid (Glasgow or Edinburgh) - Up to £50,000 Are you passionate about optimising high-volume data systems and solving complex performance challenges? We're hiring a Performance Engineer to join a growing tech team working on a cutting-edge financial data platform. This is a hybrid role, with 2 days in the office (Glasgow … or Edinburgh) and 3 days working from home . What You'll Be Doing Tuning and optimising complex SQL queries to improve system performance Building tooling for diagnostics and deployment risk management Automating performance testing and benchmarking across environments Collaborating with Engineering, DevOps, and Product teams to improve throughput and scalability Supporting deployment strategies for high-risk … releases Designing and testing new performance features What We're Looking For Proven experience in SQL performance tuning and query optimisation Familiarity with performance testing tools (e.g., JMeter, k6) Experience with observability platforms (e.g., Azure Monitor, Grafana) Strong problem-solving skills and a collaborative mindset Ability to develop and interpret MI for decision-making Bonus Skills Experience More ❯
London, South East, England, United Kingdom Hybrid/Remote Options
Harnham - Data & Analytics Recruitment
daily batch processing to real-time capability. This role suits a hands-on MLOps expert who is capable of implementing new standards, automating deployment lifecycles, and mentoring a large engineering team on best practices. What you'll be doing: MLOps Strategy & Implementation: Design and deploy end-to-end MLOps processes, focusing heavily on governance, reproducibility, and automation. Real-Time … experiment tracking, and deployment within the Databricks platform. DevOps for ML: Build and automate robust CI/CD pipelines using GIT to ensure stable, reliable, and frequent model releases. PerformanceEngineering: Profile and optimise large-scale Spark/Python codebases for production efficiency, focusing on minimising latency and cost. Knowledge Transfer: Act as the technical lead to embed … MLOps standards into the core Data Engineering team. Key Skills: Must Have: MLOps: Proven experience designing and implementing end-to-end MLOps processes in a production environment. Cloud ML Stack: Expert proficiency with Databricks and MLflow . Big Data/Coding: Expert Apache Spark and Python engineering experience on large datasets. Core Engineering: Strong experience with GIT More ❯
to Work With: Modern microservices architecture powering high-volume systems Containerisation using Docker and Kubernetes for scalable deployments Cloud-native platforms and automated CI/CD pipelines Real-time performanceengineering and distributed computing challenges Secure development practices with a focus on system architecture and compliance Key Responsibilities: Advocating TDD and solid development practices Providing technical leadership and … provide support What You'll Need: Experience working on large commercial systems Strong skills in C#, .NET Core, and Web APIs Database experience, working with both SQL and NoSQL Performance tuning and optimisation expertise Contact Philip Boltt at Lorien Global for more information. IND_PC1 Guidant, Carbon60, Lorien & SRG - The Impellam Group Portfolio are acting as an Employment Business More ❯
london (city of london), south east england, united kingdom
Elevate Partners
/div> <\/span><\/div> Our client, a global leader in quantitative research and systematic trading, is seeking an exceptional C++ Software Engineer to join their world -class engineering team as they expand operations to Dublin. This is a rare opportunity to work with one of the most sophisticated and data -driven investment funds globally, developing ultra -low … latency, high -performance systems that power trading and research across global markets.<\/span> <\/span><\/div> <\/span><\/div> As part of a high -impact engineering team, you will contribute to the design, implementation, and optimisation of mission -critical trading infrastructure, working at the intersection of technology, data, and quantitative finance.<\/span> <\/span …/div> <\/span><\/div> Key Responsibilities<\/b><\/span> <\/span><\/div> <\/span><\/div> Design, develop, and optimise high -performance C++ applications supporting quantitative trading, data analysis, and research workflows. <\/span><\/span><\/li> Contribute to the architecture and development of low -latency trading systems, market data feeds, and execution platforms. More ❯
London, South East, England, United Kingdom Hybrid/Remote Options
Xact Placements Limited
ambitious Head of Applications to lead their global Application Technology team across the UK, Singapore, and the US. This is a high-impact leadership role where you’ll shape engineering culture, drive technical excellence, and scale customer-facing SaaS systems used by some of the largest enterprises in the world. What you’ll be doing: Leading and growing a … global application engineering team , spanning backend and frontend systems Building critical SaaS capabilities for enterprise clients: account lifecycle, access control, notifications, logging, multi-tenancy, and more Partnering with local leads to ensure global alignment and consistent delivery standards Driving a high-performanceengineering culture through structured reviews, coaching, and career development pathways Partnering with Product Design to … robust enterprise workflows Tackling complex technical challenges across large-scale data pipelines, secure access, event-driven systems, and multi-tenant architectures Embedding Agile, DevOps, and best practices into the engineering organisation What they’re looking for: 10+ years of experience building and managing distributed engineering teams across multiple regions Proven track record as a global leader , managing local More ❯
Senior Python Engineer Salary: Pays up to £85,000 Location: London (2 Days in Office) Join a high-performanceengineering team redefining how global systems fight fraud at scale, where you'll architect resilient solutions, shape technical direction, and mentor others to deliver mission-critical impact with performance, reliability, and simplicity. The Opportunity Step into a pivotal … role where your engineering expertise shapes the future of digital integrity. As a Senior Engineer, you'll design and deliver high-impact, cross-service features that power a cutting-edge platform used by global customers. You'll have the freedom to make architectural decisions, drive performance and reliability improvements, and mentor talented engineers across a collaborative, high-growth … ownership of designing, building, and operating scalable backend systems that power a global, data-driven platform. You'll lead the delivery of complex, cross-service features, shaping architecture, improving performance, and ensuring reliability across the stack. Collaboration is key as you work closely with Product, Data, and Design to translate ambitious ideas into resilient, production-ready solutions. You'll More ❯
Glasgow, City of Glasgow, United Kingdom Hybrid/Remote Options
Lorien
growing, global-reaching SAAS company with a great reputation in their domain, are currently looking to hire a Technical Lead/Lead Developer or even a hands-on Software Engineering Manager with a background in C# to join their team, help lead from the front, and play a key role in the next stages of the company's evolution … As a Technical Lead/Lead Developer, you will play a pivotal role in leading a feature team, ensuring the successful delivery of business goals, and cultivating a high-performanceengineering culture. You will collaborate closely with cross-functional teams, including QA, product, design, data analysts and more, to deliver high-quality, scalable, and performant systems that meet … the team up by recruiting new staff down the line as well as developing the skills of those already in the squad Ability to set and reach goals, execute performance development planning, and conducting regular one-to-one meetings Why Join This Company? This company offers a competitive salary, a comprehensive benefits package, and a supportive, inclusive work environment. More ❯
Glasgow, Lanarkshire, Scotland, United Kingdom Hybrid/Remote Options
Lorien
growing, global-reaching SAAS company with a great reputation in their domain, are currently looking to hire a Technical Lead/Lead Developer or even a hands-on Software Engineering Manager with a background in C# to join their team, help lead from the front, and play a key role in the next stages of the company's evolution … As a Technical Lead/Lead Developer, you will play a pivotal role in leading a feature team, ensuring the successful delivery of business goals, and cultivating a high-performanceengineering culture. You will collaborate closely with cross-functional teams, including QA, product, design, data analysts and more, to deliver high-quality, scalable, and performant systems that meet … the team up by recruiting new staff down the line as well as developing the skills of those already in the squad Ability to set and reach goals, execute performance development planning, and conducting regular one-to-one meetings Why Join This Company? This company offers a competitive salary, a comprehensive benefits package, and a supportive, inclusive work environment. More ❯
London, South East, England, United Kingdom Hybrid/Remote Options
Xact Placements Limited
ambitious Head of Applications to lead their global Application Technology team across the UK, Singapore, and the US. This is a high-impact leadership role where you’ll shape engineering culture, drive technical excellence, and scale customer-facing SaaS systems used by some of the largest enterprises in the world. What you’ll be doing: Leading and growing a … global application engineering team , spanning backend and frontend systems Building critical SaaS capabilities for enterprise clients: account lifecycle, access control, notifications, logging, multi-tenancy, and more Partnering with local leads to ensure global alignment and consistent delivery standards Driving a high-performanceengineering culture through structured reviews, coaching, and career development pathways Partnering with Product Design to … robust enterprise workflows Tackling complex technical challenges across large-scale data pipelines, secure access, event-driven systems, and multi-tenant architectures Embedding Agile, DevOps, and best practices into the engineering organisation What they’re looking for: 10+ years of experience building and managing distributed engineering teams across multiple regions Proven track record as a global leader , managing local More ❯
opportunity for a student currently undertaking a sandwich degree in Computer Science, Computer Systems, Cyber Security, Networking or a related field, to spend a year embedded in a high-performanceengineering environment. You will join our Network and Security Engineering team, responsible for supporting and maintaining G-Research's enterprise and global data centre network. Working alongside … operational stability and efficiency of our core network systems, while developing skills across areas such as routing, tooling, automation, and infrastructure operations. Key responsibilities include: Monitoring the health and performance of the network infrastructure Investigating and responding to alerts and live incidents Troubleshooting hardware and software issues, in collaboration with vendors Managing connectivity and service provider issues Handling support … that includes a placement year and be on track to graduate in 2029. You'll be naturally curious, comfortable solving problems, and motivated to work in a fastpaced, high-performance technical environment. The ideal candidate will have: A placement year as part of a relevant degree programme (e.g. Computer Science, Cyber Security, Networks) An understanding of switching and routing More ❯
space. The company harnesses the expertise of its 13,000 employees towards these three functions: observe, decide and guide, for the civil and military markets. Benefits: Competitive salary Company performance bonus scheme Pension scheme - up to 10% employer contribution Private medical insurance Comprehensive health cash plan 25 days annual leave + bank holidays Flexible benefits programme (buy & sell holiday … basic pay) and Paternity/Non-Pregnant Parent/Co-adopter leave 4 weeks full pay) What does the role look like? We are actively seeking a Senior Systems & Performance Engineer to join our Wolverhampton-based team, contributing expertise to military and civil actuation projects. This individual will play a key role in an integrated product team, leveraging their … experience to autonomously plan and execute Systems & PerformanceEngineering work packages. Collaboration with the Principal Systems/Performance Engineer will enhance project delivery as needed. Responsibilities include developing technical specifications and solutions for intricate actuation systems, involving requirements capture, architecture development, trade studies, requirements validation, design performance analysis, modeling, verification, and integration. What will your day More ❯
is going through the gears, backed by world-class investors, and heading towards a big future. Theyve built a platform already trusted by global enterprise brands and now the engineering team is growing fast to take things to the next level. Youll join as a Senior Backend Engineer , taking ownership of complex Python/Django services that power enterprise … decarbonisation. Expect to design elegant APIs, tackle data-heavy challenges, and collaborate closely with sustainability experts and product teams. What makes this special? High-performanceengineering team smart, passionate, and collaborative Big mission accelerating how the worlds largest businesses understand and reduce carbon footprints Cutting-edge scale-up energy late seed, gearing up for Series A, equity on … a great fit if you bring: 7+ years backend experience (Python expertise essential) Strong knowledge of Django (or similar) and API design Experience scaling apps, with an eye for performance and reliability A proactive, problem-solving mindset and love for collaboration Enjoy a collaborative, chic, and modern office environment with team lunches, regular away days, and lots more! Package More ❯
Derbyshire, England, United Kingdom Hybrid/Remote Options
Oscar Technology
The Role An exciting opportunity has arisen for a skilled Software Engineer to join a growing Agile development team, working on advanced software solutions for complex engineering applications. This is a technical development role with a strong focus on modern C++ and software engineering best practices. You will be involved in the full development lifecycle, from requirements gathering … Visual Studio, Git, Jira etc Great communication skills Desirable Strong Maths/Physics background React and JavaScript The Company This is a well-established organisation recognised for delivering high-performanceengineering software used worldwide. Their teams are highly collaborative, technically driven, and committed to pushing the boundaries of precision and performance. They provide an environment that values innovation More ❯
Power BI. The role requires deep technical expertise in Spotfire s visual and scripting frameworks, alongside the ability to reverse-engineer, redesign and optimize data models for scalable, high-performance reporting in Power BI. This role is critical to navigating functional parity, data transformation and performance alignment between platforms, working closely with business users, report owners and Power … and Power BI developers to align source data, dataflows and model transformations. Work with business stakeholders to define functional parity, consolidate multiple versions and recommend optimisations. Provide guidance on performanceengineering approaches in Power BI, including model size reduction, incremental refresh, composite models, DirectQuery/Import trade-offs. Support UAT by validating that migrated Power BI reports meet More ❯
Safran is an international high-technology group, operating in the aviation (propulsion, equipment and interiors), defense and space markets. Its core purpose is to contribute to a safer, more sustainable world, where air transport is more environmentally friendly, comfortable and More ❯
role owns test strategy and delivery across multiple test streams (functional, regression, integration, UAT, non-functional), defines automation and test data strategies, manages risk and stakeholders, and brings an engineering mindset to accelerate quality through automation (including Playwright), shift-left practices, and continuous testing. Key Responsibilities Define and own the end-to-end test strategy for Duck Creek or … implementation for modern web UI automation, including best practices for resilience, parallel execution, cross-browser testing, and integration with pipelines. Define and lead Non-Functional Testing (NFT) strategy covering performance, load, scalability, security, and accessibility testing; coordinate with platform and infra teams for environments and tooling. Define Test Data Management (TDM) strategy: data profiling, synthetic data generation, masking, subset … environment refresh cadence to support all test stages. Drive test environment strategy, including environment provisioning, configuration management, and service virtualization/mock services for dependent integrations. Implement a Test Engineering mindset: promote shift-left testing, testability by design, contract testing, continuous feedback, and test-driven development where applicable. Manage stakeholder relationships across business, product owners, solution and integration architects More ❯