76 to 100 of 124 Performance Optimisation Jobs in London

Product Owner

Hiring Organisation
Context Recruitment
Location
London, United Kingdom
Employment Type
Permanent
Salary
£45000 - £50000/annum plus excellent benefits
within a CMS-driven environment * Strong knowledge of content management systems (experience with Drupal is highly desirable) * Understanding of UX principles, SEO and website performance optimisation * Ability to manage stakeholders and work collaboratively with technical and non-technical teams * Experience prioritising backlogs and working within Agile environments * Strong ...

Interim Finance Data Lead

Hiring Organisation
In2 Consult
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £550 per day
Build interactive dashboards and self-service reporting capabilities that enable stakeholders to explore data independently Provide technical oversight for data modelling, report architecture, and performance optimisation Support migration or integration of reporting solutions alongside ERP or finance system changes Develop documentation and standards including data dictionaries, reporting frameworks ...

Microsoft Fabric Data Engineer

Hiring Organisation
Movar
Location
London Area, United Kingdom
Design and build scalable data pipelines and lakehouse/warehouse models on Microsoft Fabric (OneLake, Lakehouse, Data Warehouse, Data Factory). Implement medallion architectures, performance optimisation, and cost management for analytics and AI workloads. Define and enforce data engineering standards, governance, and security in an enterprise environment. Mentor ...

C++ Developer

Hiring Organisation
Caspian One
Location
Greater London, England, United Kingdom
focus shifts to delivering the same transformation for the Western Time Zone platform. This is a hands‐on C++ engineering role working on high‐performance, cross‐asset execution and hedging systems within a front-office trading environment. What You’ll Be Doing Enhancing and rebuilding components of a modern … fast‐paced trading environment What We’re Looking For 10+ years’ experience in modern C++ development Strong understanding of STL, Boost , multithreading, and performance optimisation Proven background in capital markets — ideally FX, but cross‐asset experience also welcomed Solid understanding of trading system architecture , market data, execution flows ...

Data Engineer

Hiring Organisation
Vivo Talent
Location
London, United Kingdom
Employment Type
Permanent
Salary
£55000 - £65000/annum
build, and maintain scalable data pipelines and ETL processes Integrate structured and unstructured data from multiple internal and external sources Ensure data quality, consistency, performance, and security across platforms Collaborate with analytics engineers, data analysts, and stakeholders to support data modelling and transformation Monitor, optimise, and troubleshoot data infrastructure … manage robust data infrastructure for large-scale data ingestion and processing Develop automated, reliable data pipelines aligned to best practices Optimise ETL workflows for performance and scalability Implement data governance, access controls, and security standards Support self-service analytics by enabling clean, well-structured datasets Proactively identify and resolve ...

Software Engineering Team Lead

Hiring Organisation
Lorien
Location
London, England, United Kingdom
practices Ability to demonstrate in-depth Python knowledge , both theoretically and practically Experience building systems from scratch and scaling them effectively Strong focus on performance optimisation and efficiency improvements Experience working with Artificial Intelligence or Large Language Models (LLMs) Proven hands-on leadership experience as a Team Lead … Technical Lead Experience supporting development teams and making technical decisions that impact system architecture and performance Role Responsibilities Lead and mentor a team of software engineers Provide technical guidance and architectural direction Contribute hands-on to Python development when required Help design and build scalable and efficient systems Support ...

Software Engineer x 3

Hiring Organisation
Neulinx
Location
City of London, London, United Kingdom
application and SDK • Collaborate closely with product and design from idea through to release • Own features end-to-end, including architecture decisions • Contribute to performance optimisation and developer experience • Work in a high-agency, experimental environment where engineering quality matters This is not a delivery-only environment. Engineers … product and technical direction. They’re looking for software engineers who: • Have strong hands-on React and TypeScript experience • Care deeply about frontend craft, performance and detail • Are comfortable working in ambiguity and high-ownership environments • Have shipped meaningful features in startup or product-led teams • Can contribute ...

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 ...

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 ...

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/ ...

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 ...

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 ...

Contract Product Manager

Hiring Organisation
Formula Recruitment
Location
London Area, United Kingdom
Responsibilities: Own and deliver the product vision, strategy and roadmap aligned to business goals. Apply a data-driven approach to prioritisation, KPIs and performance optimisation. Lead 0–1 product development initiatives. Take products from concept through to launch. Drive end-to-end product delivery within an Agile environment. Collaborate ...

Senior Content Designer

Hiring Organisation
C4S Search Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £800 per day
understanding of design systems and modular design thinking. Ability to deliver high volumes of quality work at pace. Strong commercial awareness and understanding of performance optimisation. Highly organised, proactive, and collaborative. Desirable Experience within ecommerce, fashion or lifestyle brands. Motion design capability. Background in fast-paced retail or product ...

Full Stack Developer

Hiring Organisation
Randstad Technologies Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£65000 - £72000/annum
Full Stack Delivery: End-to-end design, development, and deployment of scalable web applications. System Architecture: Application of complex architecture patterns to support high-performance server-side logic. UI Development: Construction of responsive interfaces and layouts using modern JavaScript frameworks. API & Microservices: Development of RESTful services utilizing the Java … Boot ecosystem. Data Management: Design and maintenance of SQL/NoSQL databases and ORM integration. Quality Control: Execution of unit testing, code reviews, and performance optimization to ensure high standards. Essential Skills Core Languages: Advanced proficiency in Java, JavaScript, HTML, and CSS. Back-End: Extensive experience with Java, Spring ...

Full Stack Developer

Hiring Organisation
Randstad Technologies
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £72,000 per annum
Full Stack Delivery: End-to-end design, development, and deployment of scalable web applications. System Architecture: Application of complex architecture patterns to support high-performance server-side logic. UI Development: Construction of responsive interfaces and layouts using modern JavaScript frameworks. API & Microservices: Development of RESTful services utilizing the Java … Boot ecosystem. Data Management: Design and maintenance of SQL/NoSQL databases and ORM integration. Quality Control: Execution of unit testing, code reviews, and performance optimization to ensure high standards. Essential Skills Core Languages: Advanced proficiency in Java, JavaScript, HTML, and CSS. Back-End: Extensive experience with Java, Spring ...

Senior Java Developer - Low Latency

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
development, testing, and maintenance of low-latency Java applications. - Collaborate with cross-functional teams to gather requirements and design system architecture. - Optimize application performance and troubleshoot latency issues. - Mentor junior developers and ensure adherence to best coding practices. - Participate in code reviews and provide constructive feedback. - Stay updated with … Science, Engineering, or a related field. - Proven experience in Java development, with a focus on low-latency systems. - Strong understanding of multithreading, concurrency, and performance optimization. - Experience with frameworks and libraries such as Spring, Hibernate, and Netty. - Familiarity with distributed systems and network protocols. - Excellent problem-solving skills ...

Junior Data Engineer

Hiring Organisation
Chambers and Partners
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
standards. In this role, you will learn how to champion engineering excellence and act as a subject matter expert for data-related projects, ensuring performance, scalability, and compliance with standards across the data engineering team. Equal Opportunity Statement We are committed to fostering and promoting an inclusive professional environment … agile framework at Chambers Skills and Experience Strong proficiency in SQL , including Spark SQL and MS SQL Server , for querying, data manipulation, and performance optimization. Hands-on experience with Python and PySpark for data processing, transformation, and automation tasks. Proven ability to design, build, and maintain scalable data pipelines ...

Partnerships Development Manager

Hiring Organisation
How Ya Doing
Location
City of London, London, United Kingdom
Open Banking space. They move away from the "one-size-fits-all" approach of larger providers, focusing instead on high-performance, tailored infrastructure for scaling businesses. Senior Partnership Development Manager - Fintech/Payments (Recurring Commerce) We are hiring an experienced Senior Partnership Development Manager to lead growth within … long-term enablement. Product Influence: Serve as the bridge between partners and internal product teams to help guide the roadmap for the digital economy. Performance Optimisation: Run high-level QBRs to identify cross-sell opportunities and improve partner performance. Your Required Experience A track record in Partnership Development ...

Sales Director

Hiring Organisation
Tria
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£110000 - £120000/annum + Commission
based infrastructure used by media companies to deliver live and on-demand video at scale , helping operators reduce delivery costs while improving reliability and performance across their streaming services. Having already secured customers across multiple European markets, the business is now investing in building a presence … media companies, or digital video platforms A track record of closing enterprise deals involving technical stakeholders Confidence discussing topics such as streaming architecture, scalability, performance optimisation, and video delivery Motivation to build a territory rather than step into an established sales patch ...

Senior Developer

Hiring Organisation
Ascend Consulting
Location
North West London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £80,000 per annum
Server and SAP Business One backend tables Database Management : Write optimized SQL queries, stored procedures, and indexing strategies to efficiently handle large datasets Performance Optimization : Monitor and enhance API performance, database query execution, and application scalability Documentation : Maintain clear and detailed documentation for APIs, database structures … Code Quality : Conduct code reviews, debugging, and error handling to maintain system reliability Best Practices : Stay up to date with API design standards, database performance tuning, and cloud integration trends What You’ll Need 5+ years of backend development experience Strong .NET skills for API development and business logic ...

Databricks Architect

Hiring Organisation
Tredence Inc
Location
City of London, London, United Kingdom
Lakehouse architecture, big data engineering, cloud ecosystems, and enterprise data strategy. The ideal candidate will partner with business and technology leaders to deliver high-performance data systems that support analytics, AI/ML, and real-time insights. Key Responsibilities Architecture & Solution Design Architect end-to-end Databricks Lakehouse solutions … including data ingestion, ETL/ELT pipelines, Delta Lake, data warehousing, and data governance frameworks. Define and enforce best practices, security standards, and performance optimization across Databricks workloads. Design scalable big data architectures leveraging Spark, Delta Live Tables, Unity Catalog , and MLflow. Lead cloud architecture design on Azure/ ...

PostreSQL DBA

Hiring Organisation
Hays
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£450.0 - £500.0 per day + up to £500 pd (Outside IR35)
profile end customer. Key Requirements: Proven experience as a Database Administrator (PostgreSQL DBA) Must hold Active Security Clearance (SC) Core development/maintenance and performance optimisation (sharding, partitions) Experience with clustering and extensions such as Pgvector PostGIS and AGE Data migration experience from existing database(s) to Postgres ...

ServiceNow Platform Designer

Hiring Organisation
SmartSourcing Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £650/day
best practice.Review and validate development outputs, ensuring alignment to design principles and long-term sustainability. Shape the platform’s environment strategy, including version upgrades, performance optimisation, and health monitoring. Platform Strategy Roadmap Provide strategic input into licensing, roadmap planning, security posture, and the future evolution of the platform. ...

Frontend Engineering Manager /Arch Manager GenAI experience

Hiring Organisation
Accenture
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
especially looking for individuals who are experts in front-end engineering for mobile or web platforms, with deep experience in modern frameworks and performance optimization. You’ll bring hands-on experience with generative AI technologies and understand how to apply them to enhance product experiences. Consulting experience is also ...