1 to 25 of 42 Performance Engineering Jobs

Performance Test Engineer

Hiring Organisation
Response Informatics
Location
Warwick, Warwickshire, West Midlands, United Kingdom
Employment Type
Contract
Contract Rate
Up to £200 per day
Description We are looking for an experiencedPerformance Testerwith strong expertise in performance engineering, load testing, and capacity planning. The candidate will be responsible for defining and executing performance test strategies for complex applications, identifying system bottlenecks, and working closely with development, architecture, infrastructure, and DevOps teams … ensure optimal system performance, scalability and reliability. This role is primarilyhandsonwith opportunities to provide technical leadership and guidance. Key Responsibilities Performance Test Strategy & Planning Define end-to-endperformance testing strategyaligned with business and nonfunctional requirements Identify performance test scope, workloads, success criteria, and KPIs Prepare performance ...

.NET Performance Engineer

Hiring Organisation
Initialize Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£70,000
.NET Performance Engineer- Global tech. company - UK - remote Excellent opportunity to join a new team, owning the runtime health and throughput characteristics of the platform. This is a specialist contributor role - you won't be building feature logic, you'll be ensuring the systems that … experience - usage of AI tools (Claude, CoPilot, ChatGPT) - highly desirable 4-5+ years of .NET/C# development with a demonstrable specialism in performance engineering Deep, hands-on experience with .NET profiling tools - dotMemory, dotTrace, PerfView, Visual Studio Diagnostic Tools, or equivalent Strong understanding of .NET memory ...

.NET Performance Engineer

Hiring Organisation
Initialize
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £72,000 per annum
.NET Performance Engineer- Global tech. company - UK - remote - £65 - 72k Excellent opportunity to join a new team, owning the runtime health and throughput characteristics of the platform. This is a specialist contributor role — you won't be building feature logic, you'll be ensuring the systems that … development experience - usage of AI tools (Claude, CoPilot, ChatGPT) 4-5+ years of .NET/C# development with a demonstrable specialism in performance engineering Deep, hands-on experience with .NET profiling tools — dotMemory, dotTrace, PerfView, Visual Studio Diagnostic Tools, or equivalent Strong understanding of .NET memory management ...

Principal Engineer / Architect

Hiring Organisation
Fruition Group
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent
Salary
£80,000
hands-on technical leadership role focused on ensuring the platform remains scalable, maintainable and performant as the organisation grows. You will work across all engineering teams to define architectural standards, guide complex technical decisions and lead initiatives that strengthen performance, reliability, technical sustainability and innovation. What will … role? Architecture Governance Define and maintain system architecture standards Guide the evolution of platform architecture Support major technical decisions across engineering teams Review and approve complex technical designs Technical Debt and Modernisation Define and maintain a technical debt roadmap Lead initiatives such as frontend modernisation and system restructuring Improve ...

Head of Software Engineering

Hiring Organisation
Unity Talent Solutions
Location
City of London, London, United Kingdom
Head of Software Engineering Software as a Medical Device Location: Remote (UK-based), London HQ Contract: Full-time, permanent Reports to: CTO Compensation: £100k - £120k + equity Stage: Funded, venture-backed About Our Client Our client is a spinout from a leading UK university, building AI software that analyses … clearance. The founding team combines deep cardiology and electrophysiology expertise with AI research and commercial experience. The Role They are hiring their first senior engineering hire to build the production software platform that brings AI models into clinical workflows. This is a foundational role: you will own the software ...

Staff Engineer

Hiring Organisation
Tata Consultancy Services
Location
London Area, United Kingdom
design and development of highly scalable, resilient, and performant backend systems. This role is suited for a hands-on technical leader who can set engineering direction, influence architecture, mentor engineers, and drive complex solutions across multiple teams. Your responsibilities: Technical Leadership Evolve the technical strategy and architectural direction … backend services and distributed systems. Design scalable, fault-tolerant, event-driven, and cloud-native backend architectures. Lead complex engineering initiatives spanning multiple teams, domains, or platforms. Provide deep hands-on expertise across Java, microservices, performance engineering, and distributed systems. Backend Engineering Build and optimize backend services ...

Senior Technology Architect-Azure Platform Architecture, Infrastructure/ Cloud Engineering

Hiring Organisation
Infosys
Location
United Kingdom
Description : Role – Senior Technology Architect/Azure Platform Owner Technology –Azure Platform Architecture, Infrastructure/Cloud Engineering Location – London, United Kingdom Compensation – Competitive (including bonus) The opportunity Are you someone who wants to collaborate with some of the best talent in the industry? Create innovative and high-quality solutions … collaboration are encouraged, excellence is rewarded and diversity is respected, this is the place to be. We are looking to aggressively ramp up our Engineering Services team for exciting opportunities in PLM domain specifically windchill. Why should you join Infosys Engineering Services practice? At Infosys, we pioneered ...

Technical Manager

Hiring Organisation
Tech Mahindra
Location
Reading, England, United Kingdom
000+ professionals across 90+ countries helping 1100+ clients, TechM provides a full spectrum of services including consulting, information technology, enterprise applications, business process services, engineering services, network services, customer experience & design services, AI & analytics, and cloud & infrastructure services. It is the first Indian company in the world to have … Cypress, JIRA, Xray, Postman, AI enabled Testing Solution (AVO, AccelQ, UiPath), Plutora, Apwide Golive , AWS/Azure/GCP basic fundamentals, Unix shell Scripting,Performance Engineering Methodology, SRE, LoadRunner, J-Meter, Dynatrace, Splunk. Gremlin, Postman, Performance Testing process, Telecom Domain, Thought Leadership and Program Management Key Responsibilities ...

Senior GenAI Platform Engineer / Senior AI/ML Platform Engineer

Hiring Organisation
Opus Recruitment Solutions
Location
City of London, London, United Kingdom
/AI‐ML Platform Engineer to play a pivotal role in shaping and advancing their next‐generation intelligence platform. This organisation is building high‐performance, real‐time AI systems that support demanding financial and enterprise clients globally, and this position sits at the heart of their most advanced technical … developments. The Role As a senior member of the platform engineering team, you will architect, build, and optimise the underlying infrastructure that powers cutting‐edge GenAI and machine learning workloads. This includes large‐scale model deployment, distributed systems design, high‐throughput data processing, and the creation of robust frameworks ...

Head of Software Development

Hiring Organisation
Reed
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£120,000 - £150,000 per annum, Inc benefits
become available for a growing Financial SaaS, Capital Markets company looking to hire an exceptional Head of Software Development to lead their software engineering organisation and serve as a key member of the senior leadership team. This strategic role combines deep technical leadership with people management and offshore team … coordination, offering a clear pathway to Deputy CTO. The successful candidate will own the end-to-end software delivery lifecycle, drive engineering excellence, and be instrumental in shaping their technology vision. Day-to-Day of the Role: Strategic Leadership : Define and drive the software development strategy in alignment with ...

SC Cleared Observability Consultant: Dynatrace, Splunk, Cloud, ITSM, Clearance

Hiring Organisation
Curo Services
Location
Hatfield, Hertfordshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP 425 Daily
Implement OpenTelemetry collectors, agents, and SDK instrumentation strategies Build dashboards, alerts, and automation workflows Integrate Observability platforms with ITSM, AIOps, Event Management platforms Troubleshooting & Performance Engineering Analyse application, infrastructure, and network performance issues. Lead root cause analysis and performance optimisation initiatives. Enable proactive detection through anomaly … engagement and communication skills. Desirable: Professional Level Certifications in Observability products/OpenTelemetry Associate Certification/Prometheus Associate Certification Familiarity with DevOps and Platform engineering ways of working with associated tools (CI/CD, git, automation etc.) Working level understanding of Cloud/Cloud Native Observability technologies (AWS CloudWatch ...

Software Quality Engineering Lead

Hiring Organisation
P. Moe Talent Collective
Location
Uxbridge, England, United Kingdom
deliver critical software. As they scale their platform to support the organisations and vulnerable individuals who depend on them, they are seeking a Quality Engineering Lead to bridge the gap between manual testing and a modern, automated future. This is a high-impact, hands-on leadership role . … automation strategy from the ground up and mentoring a dedicated team through a significant technical transition. The Opportunity Reporting to the Head of Software Engineering, you will be responsible for defining and implementing a test automation strategy suitable for a .NET and Azure-based stack. This role is essential ...

DevOps Tester

Hiring Organisation
Randstad Digital
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£500 - £600 per day
DevOps Engineer (Performance Testing) 6 Months Contract + extension £600 per day (Inside IR35) Remote working Please note active SC Clearance is needed for the role A leading global consultancy is looking for an experienced hybrid devOps and Performance specialist to superhead critical national infrastructure projects. You will … scalability of a massive cloud-native environment. This is a high-visibility role where you will bridge the gap between infrastructure stability and rigorous performance validation. Key Responsibilities Infrastructure & CI/CD: Design, build, and maintain robust CI/CD pipelines to automate deployment cycles. Performance Engineering ...

DevOps Tester

Hiring Organisation
Randstad Technologies
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £600 per day
DevOps Engineer (Performance Testing) 6 Months Contract + extension £600 per day (Inside IR35) Remote working Please note active SC Clearance is needed for the role A leading global consultancy is looking for an experienced hybrid devOps and Performance specialist to superhead critical national infrastructure projects. You will … scalability of a massive cloud-native environment. This is a high-visibility role where you will bridge the gap between infrastructure stability and rigorous performance validation. Key Responsibilities Infrastructure & CI/CD: Design, build, and maintain robust CI/CD pipelines to automate deployment cycles. Performance Engineering ...

AI Solution Lead

Hiring Organisation
Raytheon
Location
Warminster, Wiltshire, South West, United Kingdom
Employment Type
Permanent
operational objectives. Define scalable, secure, and maintainable AI architectures, covering data pipelines, model lifecycle management, deployment, and monitoring. Establish architectural standards, design patterns, and engineering best practices. Provide technical oversight across the full AI lifecycle: concept, prototyping, production deployment, and optimisation. Review and approve solution designs produced … Engineers and wider delivery teams. Lead, mentor, and develop AI Solution Engineer(s) and associated technical staff. Set technical direction and ensure consistency in engineering standards across AI initiatives. Conduct code and design reviews to ensure quality, security, and maintainability. Identify capability gaps and drive upskilling across ...

Senior Software Engineer

Hiring Organisation
Retelligence
Location
Cambridge, England, United Kingdom
+ Benefits The Opportunity We are seeking a Senior Software Engineer to join a team building high-integrity, scalable platforms. Our engineering culture mirrors the rigour of R&D-heavy environments. You will work on complex distributed systems where performance, data security, and cloud efficiency are the primary … releases of the Microsoft ecosystem while remaining cloud-flexible to suit diverse enterprise and research requirements. Core: C# 14 , .NET 10 (focusing on high-performance primitives and AOT compilation). Cloud: Professional-grade implementation across AWS ( ECS , Lambda , RDS ) and Azure ( AKS , Functions , Cosmos DB ). Infrastructure: Terraform ...

Senior AI Engineer

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
using Python, LangChain, and LangGraph. Implement tool calling (function calling), memory persistence, and error-handling logic for robust autonomous execution. · RAG Implementation: Develop high-performance retrieval pipelines. Optimise chunking strategies, embedding generation (using Amazon Titan or similar), and vector search retrieval in Amazon OpenSearch. · Model Fine-Tuning: Execute fine … tuning jobs on Amazon SageMaker, preparing training datasets and optimising hyperparameters to improve model performance on domain-specific tasks. · Performance Engineering: Optimise latency and throughput of AI applications. Implement caching strategies and use SageMaker Endpoints for efficient inference scaling. · Code Quality & DevOps: Write clean, testable Python code. ...

Artificial Intelligence Engineer

Hiring Organisation
HireQ Talent
Location
London Area, United Kingdom
improvements. You will collaborate with world class engineers and researchers, turning breakthrough ideas into high impact production systems. This is hands on, high ownership engineering, with huge scope, fast iteration cycles, and the ability to influence the direction of the entire AI roadmap. 🧠 What You’ll Work … etc.). Shape the future of our AI platform Prototype bold new ideas fast. Iterate with a “learn quickly, ship often” mindset. Collaborate across engineering, product, and domain experts to identify high impact use cases and refine strategy. 🛠️ What You Bring Must‐Haves Strong Python engineering skills ...

AI Engineer

Hiring Organisation
VIA MATCH LIMITED
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £130,000 per annum
grade AI systems using LLMs Developing RAG pipelines, vector search solutions, and agent-based workflows Creating robust evaluation frameworks to measure accuracy, reliability, and performance Building scalable APIs, services, and data pipelines Implementing observability, monitoring, and feedback loops to continuously improve outputs Optimising models and prompts for latency, cost … building applications using LLM APIs, with a strong understanding of their strengths and limitations Hands-on experience with RAG architectures, vector databases, and prompt engineering Experience developing multi-step workflows or agentic systems (frameworks or custom builds) Strong programming skills (Python or similar), with experience building production systems Solid ...

Technical Lead - Software Developer

Hiring Organisation
Hays
Location
Belfast, County Antrim, Northern Ireland, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
directly shapes real-world outcomes. The RoleIn this senior leadership position, you will: Lead and mentor a multi-disciplinary Scrum team, fostering a high-performance engineering culture. Architect and implement scalable, resilient technical solutions. Collaborate with designers, BAs, product owners and QA to deliver exceptional user experiences. … Technical Lead for key product areas, solving complex problems with pragmatic, modern engineering approaches. Work closely with Product to shape backlogs, prioritise features and plan sprints. Support rapid prototyping to accelerate time-to-value. About YouYou are an experienced engineering leader with: Strong commercial experience leading development teams. ...

HPC - Senior Information Technology Support Engineer

Hiring Organisation
Ascent People Ltd
Location
Oxfordshire, England, United Kingdom
administration skills and hands-on experience in high-demand technical environments. Ideally, you'll have worked in advanced technology, simulation-heavy industries, or similar performance-critical sectors. About the company This is your opportunity to work with a high-performance engineering organisation operating at the absolute cutting … constant, and the technical infrastructure you build directly impacts success at the highest level. If you thrive in fast-paced, data-intensive environments where engineering excellence is non-negotiable, this is the role for you. About the role We're looking for an experienced (senior) HPC Infrastructure Engineer ...

Senior Software Engineer (Python)

Hiring Organisation
Beamost Ltd
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent
Systems to own and evolve a production options trading system. It runs during market hours, ingests real-time market data, and requires profiling-led performance engineering to keep p50/p99 latency, jitter, and reliability within tight bounds. Youll take meaningful ownership day-to-day, partnering closely with … founder and the engineering team to prioritise work, ship improvements quickly, and keep the system fast, reliable, and correct. Who this is for This role is for engineers who have built and owned real-time, performance-critical systems. It is not suitable for candidates whose experience is mainly ...

C++ Trading Platform Developer

Hiring Organisation
Radley James
Location
City of London, London, United Kingdom
looking for a C++ Trading Platform Developer to join its London-based team. This is an opportunity to work at the intersection of high-performance engineering and digital asset markets, building and scaling a global trading platform that operates across dozens of exchanges worldwide. The environment combines … platform spanning multiple continents, covering: Real-time market data capture Order entry and connectivity across numerous exchanges Robust networking and monitoring systems Scaling and performance optimisation of core infrastructure The tech stack is primarily C++ and Python, running on Linux across both development and production. The focus ...

Head of Engineering

Hiring Organisation
XACT PLACEMENTS LIMITED
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
lead their global Application Technology team across the UK, Singapore, and the US. This is a high-impact leadership role where youll shape engineering culture, drive technical excellence, and scale customer-facing SaaS systems used by some of the largest enterprises in the world. What youll be doing: Leading … 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-performance engineering culture through ...

Head of Applications

Hiring Organisation
XACT PLACEMENTS LIMITED
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
lead their global Application Technology team across the UK, Singapore, and the US. This is a high-impact leadership role where youll shape engineering culture, drive technical excellence, and scale customer-facing SaaS systems used by some of the largest enterprises in the world. What youll be doing: Leading … 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-performance engineering culture through ...