226 to 250 of 335 Performance Optimisation Jobs in the UK

IOS Technical Lead

Hiring Organisation
Salt
Location
Crawley, England, United Kingdom
Clean Architecture, etc.) Drive best practices across engineering including TDD, CI/CD, and code quality Oversee API integrations (REST/GraphQL) and ensure performance optimisation Collaborate with cross-functional teams across product, backend, and DevOps Mentor and lead distributed/offshore engineering teams Required Skills & Experience Strong … Proven experience as a Technical Lead or Senior Engineer with architectural ownership Deep understanding of modern mobile architecture patterns Experience building scalable, high-performance mobile applications Strong knowledge of API integration (REST; GraphQL is a plus) Experience with modern development practices (CI/CD, TDD, secure coding) Familiarity with ...

iOS Technical Lead - Inside IR35 - Crawley (hybrid)

Hiring Organisation
Salt
Location
Crawley, West Sussex, South East, United Kingdom
Employment Type
Contract, Work From Home
Clean Architecture, etc.) Drive best practices across engineering including TDD, CI/CD, and code quality Oversee API integrations (REST/GraphQL) and ensure performance optimisation Collaborate with cross-functional teams across product, backend, and DevOps Mentor and lead distributed/offshore engineering teams Required Skills & Experience Strong … Proven experience as a Technical Lead or Senior Engineer with architectural ownership Deep understanding of modern mobile architecture patterns Experience building scalable, high-performance mobile applications Strong knowledge of API integration (REST; GraphQL is a plus) Experience with modern development practices (CI/CD, TDD, secure coding) Familiarity with ...

iOS Technical Lead - Inside IR35 - Crawley (hybrid)

Hiring Organisation
Salt
Location
Chichester, West Sussex, UK
Clean Architecture, etc.) Drive best practices across engineering including TDD, CI/CD, and code quality Oversee API integrations (REST/GraphQL) and ensure performance optimisation Collaborate with cross-functional teams across product, backend, and DevOps Mentor and lead distributed/offshore engineering teams Required Skills & Experience Strong … Proven experience as a Technical Lead or Senior Engineer with architectural ownership Deep understanding of modern mobile architecture patterns Experience building scalable, high-performance mobile applications Strong knowledge of API integration (REST; GraphQL is a plus) Experience with modern development practices (CI/CD, TDD, secure coding) Familiarity with ...

Power BI Developer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Full-Time
Salary
£30,000 - £35,000 per annum
ambitious requests into clear dashboard requirements. Producing wireframes and mock-ups to align design direction prior to build. Auditing and improving existing reports for performance, maintainability, and UX. Documenting models and dashboards clearly for long-term maintainability. Managing deployments, workspaces, and pipelines in Power BI Service. What you bring … need a portfolio or examples of your work. Deep understanding of data modelling , star schema, relationships, and model optimisation. Advanced DAX (complex measures, performance optimisation). Strong Power Query (M) capabilities. Ability to translate complex data into clear, actionable narratives through dashboard structure and design. Confidence in client ...

Lead React Native Engineer

Hiring Organisation
TechShack
Location
United Kingdom
mobile platform. They’re looking for a Lead React Native Engineer to take ownership of their mobile applications across iOS and Android , shaping architecture, performance standards, and release processes as the platform evolves. This is a senior individual contributor role with strong technical influence , working closely with backend, product … experience: • Strong production experience with React Native and TypeScript • Experience building and shipping apps with Expo • Deep understanding of React hooks, state management, and performance optimisation • Experience architecting and scaling mobile applications • High bar for engineering quality, testing, and reliability Nice to have: • Modern React Native architecture (Fabric ...

Mobile App Developer

Hiring Organisation
Hamilton Jones Consulting
Location
Chester, Cheshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£30,000 per annum, Negotiable
structured code Use AI-assisted development tools as part of the development process Participate in code reviews and maintain development standards Continuously improve application performance, reliability and usability About You You will likely have: A degree in Computer Science or a related discipline (or equivalent experience) Around 3+ years … GitHub Copilot or similar Experience building secure, reliable applications for business or operational use Good understanding of mobile networking, data storage, UI rendering and performance optimisation Working Arrangements This role is initially office-based in Chester during onboarding , moving to hybrid working once established in the role. ...

Creative Unity Developer

Hiring Organisation
Adria Solutions
Location
Manchester, North West, United Kingdom
Employment Type
Permanent
Salary
£50,000
interaction design Create polished, engaging interactive moments Build reusable systems and components Contribute to internal tools that support efficient content creation Help solve performance and scalability challenges Youll work in a fast-moving environment where experimentation and iteration are part of the process. Essential Skills Strong C# development experience … such as Blender Comfort working across programming, animation and design Desirable Skills Character animation in Blender JavaScript/TypeScript (for lightweight input interfaces) Unity performance optimisation (e.g. large object counts, DOTS) 3D modelling Shader development Game-flow architecture and state machine design Interest in multi-user or large ...

FPGA Firmware Engineer

Hiring Organisation
Saxon Recruitment Solutions
Location
Ulverston, Cumbria, North West, United Kingdom
Employment Type
Permanent
Salary
£65,000
throughput digital signal processing (DSP), beamforming, and robust operation in demanding subsea environments. The FPGA Engineer will contribute to the development of reliable, high-performance embedded systems deployed in offshore, marine, defence, and scientific applications. What you'll do: 1. FPGA Architecture & Real-Time Signal Processing Develop FPGA designs … processing Beamforming algorithms Pulse compression and matched filtering Implement high-speed streaming data pipelines Optimise fixed-point arithmetic for deterministic real-time performance Design low-latency architectures suitable for active sonar systems. 2. High-Speed Interface Development Implement and validate interfaces such as: High-speed ADC/DAC interfaces ...

Data Architect

Hiring Organisation
Arqtech Search Ltd
Location
Huntingdon, Cambridgeshire, East Anglia, United Kingdom
Employment Type
Contract
compliant data architecture within a high-assurance defence setting. Role Overview The DV Data Architect will be responsible for the design, governance and optimisation of enterprise-level data architecture supporting operational and analytical systems. You will work across structured and unstructured data environments, ensuring that platforms are secure, scalable … engineering, DevOps and analytics teams to support deployment pipelines. Contribute to architectural roadmaps aligned to long-term capability evolution. Ensure high availability, resilience and performance optimisation of data systems. Required Experience Proven experience as a Data Architect within complex, secure or regulated environments. Strong understanding of enterprise data ...

Senior Software Engineer

Hiring Organisation
Platform Recruitment
Location
Cambridge, England, United Kingdom
including for the trialing of new open-source technologies, as well as the prototyping of novel systems. Much of your work will focus on performance optimisation; strong C++ skills are critical for your success in this position . About you: 4+ years' commercial development experience Excellent kernel-level ...

Senior Linux Engineer

Hiring Organisation
Platform Recruitment Limited
Location
Cambridge, Cambridgeshire, East Anglia, United Kingdom
Employment Type
Permanent
Salary
£85,000
including for the trialing of new open-source technologies, as well as the prototyping of novel systems. Much of your work will focus on performance optimisation; strong C++ skills are critical for your success in this position . About you: 4+ years' commercial development experience Excellent kernel-level ...

Senior Linux Engineer

Hiring Organisation
Platform Recruitment Limited
Location
Cambridge, Cambridgeshire, UK
including for the trialing of new open-source technologies, as well as the prototyping of novel systems. Much of your work will focus on performance optimisation; strong C++ skills are critical for your success in this position . About you: 4+ years' commercial development experience Excellent kernel-level ...

Product Manager

Hiring Organisation
Apply Recruitment
Location
Greater Manchester, England, United Kingdom
pragmatic exceptions) Delivery collaboration (Agile ways of working, enabling teams without blocking) Key Activities: Define Platform Strategy, Roadmap & Technical Direction Lead Continuous Improvement & Platform Performance Optimisation Platform Governance & Quality Assurance Vendor Management - Driving value from ServiceNow contract, managing licensing, and implementation partners Support Release, Environment & Lifecycle Management Support ...

Product Manager

Hiring Organisation
Apply Recruitment
Location
East Midlands, England, United Kingdom
pragmatic exceptions) Delivery collaboration (Agile ways of working, enabling teams without blocking) Key Activities: Define Platform Strategy, Roadmap & Technical Direction Lead Continuous Improvement & Platform Performance Optimisation Platform Governance & Quality Assurance Vendor Management - Driving value from ServiceNow contract, managing licensing, and implementation partners Support Release, Environment & Lifecycle Management Support ...

Rust/ C++ Quantitative Developer (HFT)

Hiring Organisation
Venture Search
Location
City of London, London, United Kingdom
Debugging : Maintain real-time trading systems and resolve operational issues efficiently. Qualifications Strong programming capabilities with a focus on low-level development and performance optimization Minimum 2 years of experience developing HFT or trading systems Deep understanding of trading infrastructure, including order books and order state machines Proficiency ...

Data Engineer (Automation)

Hiring Organisation
Network IT
Location
Milton Keynes, Buckinghamshire, South East, United Kingdom
Employment Type
Permanent
Salary
£55,000
supporting live data pipelines, resolving issues in line with ITIL best practices , and implementing proactive alerting and self-healing mechanisms. Identifying and implementing performance optimisations across data pipelines, queries, and reporting workloads. Supporting data governance processes , including data archiving, masking, encryption, and versioning, with opportunities to integrate AI-driven … this role, you will bring: Strong commercial experience delivering end-to-end data engineering and automation solutions in complex environments. Advanced SQL skills, including performance tuning and optimisation across large datasets. Knowledge of Python or R for data processing or analytics. Hands-on experience with data integration ...

Account Manager

Hiring Organisation
Sphere Digital Recruitment Group
Location
London Area, United Kingdom
commercial stakeholders to ensure seamless campaign execution across CTV, OLV, and Display . Key Responsibilities Manage and grow relationships with premium publishers, overseeing onboarding, performance optimisation, and long‐term account health. Conduct daily supply checks and provide clear insights to internal and external stakeholders. Support campaign setup, trafficking … optimisation, and reporting across video and display formats. Assist with pre‐sales tasks including forecasting, audience targeting, and curated site lists. Ideal Candidate 1–3 years’ experience in digital media operations, account management, ad ops, or programmatic trading. Experience working with a DSP or SSP is essential (e.g., DV360 ...

Senior Full Stack Developer

Hiring Organisation
SmartResilience
Location
United Kingdom
climate risk models and resilience solutions. You will work closely with software development and climate science colleagues to create scalable, reliable, and high-performance systems that deliver seamless client experiences. The ideal candidate should be based in UK or Spain. The role is fully remote but with team gatherings … quarterely Key Responsibilities Take full ownership of the design, delivery, and performance of core backend services powering our climate risk and resilience platform. Architect, build, and scale secure, production-grade microservices in Python on AWS, ensuring reliability, resilience, and long-term maintainability. Drive technical decision-making across system design ...

Artificial Intelligence Specialist

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
logging Responsible AI practices: evaluation, content moderation, privacy, and compliance-by-design Architecture & Systems Skills (Must Have) Distributed system design: scalability, fault tolerance, caching, performance tuning Observability: logging/metrics/tracing, prompt/version tracking, monitoring SLIs/SLOs Cost management and performance optimization: model selection/ ...

C# Senior Software Developer

Hiring Organisation
Adria Solutions
Location
Manchester, North West, United Kingdom
Employment Type
Permanent
Salary
£75,000
mentor junior developers, and work on high-impact, secure banking solutions. You will be a key contributor to web portal and API development, ensuring performance, security, and reliability in a dynamic environment. This role is ideal for developers with strong technical expertise who are looking to grow into leadership … trace request flows from UI Controller API Database Response Maintain and publish API documentation via Swagger/OpenAPI Ensure API security, reliability, and performance (error handling, retry logic, logging, timeouts, CORS) Collaborate with database, infrastructure, and QA teams for portal and API releases Participate in code reviews, version control ...

Contract Applications Developer - C++/Windows

Hiring Organisation
Verso Recruitment
Location
Ely, Cambridgeshire, East Anglia, United Kingdom
Employment Type
Contract, Work From Home
working (3 days on site, 2 from home) A contract opportunity for an experienced Contract Applications Developer - C++/Windows to join a high‐performance engineering team in Cambridge, working on motor control, embedded systems, and cross‐platform development across Windows and Linux. This is an initial 6‐month … will develop and enhance software that drives complex motor‐control systems used in advanced engineering environments. The work involves low‐level control, real‐time performance, and robust cross‐platform implementation. Collaboration with electronics, firmware, and systems engineers is central to the role. Key Responsibilities - Design, develop, and maintain C++ ...

Product Engineer (Backend)

Hiring Organisation
Granola
Location
City of London, London, United Kingdom
evolution and scaling of our backend infrastructure Design and implement performant APIs and services Build infrastructure to support cutting-edge AI capabilities Optimise database performance and query efficiency Continuously improve reliability and observability through enhanced monitoring and alerting Collaborate cross-functionally to ensure our infrastructure supports continuous product innovation … using Terraform) Deep knowledge of relational databases (we use PostgreSQL) Familiarity with serverless architectures (we love lambdas!) Solid understanding of security best practices and performance optimisation As a person, you... Are first and foremost a builder Are excited to work in-person from our office in London (most ...

iOS Developer

Hiring Organisation
ARC IT Recruitment
Location
Brighton, Sussex, United Kingdom
Employment Type
Permanent
Salary
GBP 50,000 - 70,000 Annual
principles to write scalable, maintainable code Working with RESTful APIs to integrate app functionality Ensuring apps perform smoothly through memory management, multi-threading, and performance optimisation Collaborating with cross-functional teams on exciting projects Nice to have: experience with Android development (Kotlin) Our client offers a vibrant office ...

Senior CRM Manager

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £65,000 per annum
guide junior team members along the way. What you'll be doing: Developing multi-channel CRM strategies (email, push, SMS) Owning segmentation, journeys, and performance optimisation Turning data into clear, actionable insights Advising clients on CRM best practice and martech Presenting confidently to senior client stakeholders What ...

Linux Kernel Engineer

Hiring Organisation
Platform Recruitment
Location
Cambridge, Cambridgeshire, United Kingdom
Employment Type
Permanent
Salary
£60000 - £85000/annum
including for the trialing of new open-source technologies, as well as the prototyping of novel systems. Much of your work will focus on performance optimisation; strong C++ skills are critical for your success in this position . About you: 4+ years' commercial development experience Excellent kernel-level ...