76 to 96 of 96 Performance Optimisation Jobs in Central London

implement browser automation workflows for data collection across multiple web platforms Create tools for managing browser sessions , handling JavaScript-heavy sites, and bypassing common anti-bot measures Optimize scraping performance and reliability for high-volume data collection operations Collaborate with data engineering and product teams across global organizations Deliver high-quality, efficient code in an agile environment with minimal … running Experience working in global, distributed teams Desirable Skills Knowledge of CAPTCHA handling and browser fingerprinting Familiarity with data parsing and extraction from various web formats Understanding of web performance optimization and caching strategies Diversity, Equity, and Inclusion at PCR Digital We are committed to creating a diverse, inclusive workplace where everyone belongs. We welcome applications from people of More ❯

leading global FX trading platform as a Java Engineer, contributing to the backbone of ultra-low latency systems powering high-volume electronic trading. This role focuses on building high-performance, globally distributed Java services that enable real-time transaction processing, configuration management, and support for quantitative research and trading teams. Key Responsibilities: Develop scalable backend systems to support high … frequency FX trading Collaborate with quants and traders to deliver platform enhancements Drive performance tuning and solve low-level technical bottlenecks Maintain high standards in testing, documentation, and code quality Tech Stack & Skills: Strong proficiency in core Java Exposure to JavaScript/TypeScript & HTML5 is a plus Deep understanding of data structures, algorithms, and performance optimization Familiar with More ❯

are designed and delivered to align with business objectives and measurable success outcomes. Act as the voice of engineering in cross-departmental initiatives and planning sessions. Define goals and performance expectations at both team and individual levels, and track progress against them. Key Experience Required: Proven background in designing and delivering enterprise-grade software solutions. Beneficial experience includes T … responsibilities. Excellent communication abilities, with strength in stakeholder engagement and problem-solving. Strong awareness of business priorities and the ability to balance technical decisions with technical outcomes. Skilled in performance optimization, troubleshooting, complex issues, and applying secure coding standards. Extensive hands-on experience with Python. Deep knowledge of system architecture, continuous integration/continuous delivery, and modern engineering practices. More ❯

are designed and delivered to align with business objectives and measurable success outcomes. Act as the voice of engineering in cross-departmental initiatives and planning sessions. Define goals and performance expectations at both team and individual levels, and track progress against them. Key Experience Required: Proven background in designing and delivering enterprise-grade software solutions. Beneficial experience includes T … responsibilities. Excellent communication abilities, with strength in stakeholder engagement and problem-solving. Strong awareness of business priorities and the ability to balance technical decisions with technical outcomes. Skilled in performance optimization, troubleshooting, complex issues, and applying secure coding standards. Extensive hands-on experience with Python. Deep knowledge of system architecture, continuous integration/continuous delivery, and modern engineering practices. More ❯

developers through code reviews, pair programming, and best-practice guidance. Collaboration: Partner with product managers, UX designers, and backend engineers to deliver seamless, performant user experiences. Optimization: Drive frontend performance improvements, focusing on load times, responsiveness, and accessibility. Innovation: Evaluate and introduce modern frontend tools, libraries, and frameworks to improve developer productivity and platform quality. UI/UX Influence … and Tailwind CSS. Strong UI experience - ability to translate complex workflows and data visualizations into intuitive, elegant, and responsive interfaces. Deep understanding of component-driven design, state management, and performance optimization. Experience integrating RESTful and event-driven APIs and handling real-time data. Skilled in testing frameworks (Jest, Cypress, Playwright, etc.) and modern build tooling. Familiarity with design systems More ❯

to life with technical excellence Develop and maintain features across our mobile app and Next.js web platform Build robust, scalable solutions that handle our rapidly growing user base Optimize performance and ensure smooth user experiences across all platforms Integrate with AI/ML services and educational content delivery systems Think like an interaction designer - considering user flows, edge cases … experience isn't required Startup Mindset: Thrives in fast-paced environments with rapid iteration and high impact Innovation Drive: Excited by the opportunity to build cutting-edge educational technology Performance Focused: Understanding of mobile performance optimization and smooth user experiences What We Offer Competitive salary Opportunity to make a real impact on educational outcomes for students worldwide Collaborative More ❯

the-box capabilities, integrations, and strategic customizations. Technical Advisory & Governance: Act as a subject matter expert and technical advisor to clients and internal teams, providing guidance on platform capabilities, performance optimization, security, and scalability. Establish technical governance to ensure solution integrity. Requirement Analysis & Solution Design: Collaborate with business stakeholders to gather and analyze complex requirements, translating them into comprehensive … leveraging various integration methods (e.g., REST, SOAP, JDBC, MID Server). Technical Oversight & Quality Assurance: Provide technical oversight to development teams, ensuring adherence to architectural patterns, coding standards, and performance best practices. Participate in code reviews and ensure solution quality. Prototyping & Demonstrations: Lead the creation of technical prototypes and conduct demonstrations of proposed ServiceNow solutions, showcasing platform capabilities and … addressing client requirements. Performance Tuning & Optimization: Identify and address performance bottlenecks, ensuring the scalability and optimal performance of ServiceNow applications. Advanced Scripting & Development: Possess expert-level experience with ServiceNow scripting (Server-side JavaScript, GlideRecord, GlideSystem, UI Policies, Business Rules, Client Scripts, Script Includes) and the development of custom applications. Agile Leadership: Guide agile development teams from a More ❯

Trade Support Engineer | Production Support | Market Making London | £200,000 – £300,000 (Base + Performance Bonus) | 4 Days in Office We’re working with a leading market-making firm seeking an experienced Trade Support Engineer to join their London team. This is a hands-on, front-office support role within a fast-paced trading environment, where you’ll play … and data analysis (Pandas, NumPy). Advanced SQL experience (PostgreSQL or similar) working with large, real-time datasets. Proven Linux system administration experience, including shell scripting, process monitoring, and performance optimization in low-latency or real-time trading environments. Solid understanding of market data sources (Bloomberg, Refinitiv/Reuters, ICE, etc.). Prior exposure to electronic trading, execution platforms … making systems. Excellent communication and problem-solving skills; able to perform effectively under pressure in a front-office environment. Compensation & Benefits Total Compensation: £200,000 – £300,000 (Base + Performance Bonus) Direct collaboration with traders and technologists in a high-performance, front-office setting. Opportunity to contribute to cutting-edge trading infrastructure across global markets. Work Pattern Hybrid More ❯

Institutional | London (Hybrid) | Up to £100k Albert Bow has partnered with a fast-growing global fintech platform transforming how institutional clients access digital assets. The team is building high-performance, low-latency trading systems at the forefront of financial services. The Role: Join a dedicated, high-performing engineering team to build and maintain Order Management Systems, exchange gateways, and … risk management systems. You’ll work on critical infrastructure powering institutional trading. What You’ll Do: Build scalable, high-performance trading services using Python and SQL Develop and maintain OMS and exchange connectivity systems Apply best practices in multithreading, network programming, and performance tuning Collaborate across teams to improve system reliability and efficiency Contribute to architecture and system … environment What You’ll Bring: Strong Python and SQL experience Experience with low-latency, high-throughput systems (trading, fintech, or real-time applications) Familiarity with multithreading, network programming, and performance optimization Understanding of algorithms, data structures, and distributed systems Experience in trading systems or financial infrastructure is a plus, but blockchain/crypto experience is not required Passion for More ❯

integration between computation, data, and science. You should have Deep experience building and scaling backend systems and distributed applications . Strong coding skills in Python , with an understanding of performance tuning and concurrency. Hands-on experience with Kubernetes , AWS , and modern cloud infrastructure . Proficiency with databases — schema design, performance optimization, and analytics. Familiarity with REST APIs , websockets … security best practices. A disciplined engineering mindset — you think about reliability, maintainability, and long-term scalability. Nice-to-haves Experience with MLOps and model-serving infrastructure. Background in high-performance computing or large-scale scientific workloads. Expertise in data pipeline architecture and real-time streaming systems. Knowledge of scientific or biological computing environments . This is a rare opportunity More ❯

the-box capabilities, integrations, and strategic customizations. Technical Advisory & Governance: Act as a subject matter expert and technical advisor to clients and internal teams, providing guidance on platform capabilities, performance optimization, security, and scalability. Establish technical governance to ensure solution integrity. Requirement Analysis & Solution Design: Collaborate with business stakeholders to gather and analyze complex requirements, translating them into comprehensive … leveraging various integration methods (e.g., REST, SOAP, JDBC, MID Server). Technical Oversight & Quality Assurance: Provide technical oversight to development teams, ensuring adherence to architectural patterns, coding standards, and performance best practices. Participate in code reviews and ensure solution quality. Prototyping & Demonstrations: Lead the creation of technical prototypes and conduct demonstrations of proposed ServiceNow solutions, showcasing platform capabilities and … addressing client requirements. Performance Tuning & Optimization: Identify and address performance bottlenecks, ensuring the scalability and optimal performance of ServiceNow applications. Advanced Scripting & Development: Possess expert-level experience with ServiceNow scripting (Server-side JavaScript, GlideRecord, GlideSystem, UI Policies, Business Rules, Client Scripts, Script Includes) and the development of custom applications. Agile Leadership: Guide agile development teams from a More ❯

faceted leadership role . This engagement demands a senior professional who can seamlessly integrate deep, recent, hands-on engineering execution with strategic team guidance to deliver a scalable, high-performance data ecosystem. Candidates whose recent roles are predominantly architectural or governance-focused will not be a fit. The Mandate: Deep Execution, Strategic Delivery, and Cultural Change This role requires … or non-implementing architectural design in recent years. Core Data Skills: Comprehensive understanding of Data Warehousing methodologies, modern ELT/ETL patterns, Analytics Engineering principles, and advanced SQL for performance optimization. This is a unique opportunity to define the data strategy through execution for a Tier 1 institution and drive cultural change through technical thought leadership. We invite experienced More ❯

Our client is a well-capitalized financial market infrastructure firm expanding its technology capabilities. They are seeking a Head of Engineering to lead the development and scaling of high-performance trading systems in a regulated environment . This is a unique opportunity to drive technical execution, build a high-caliber engineering team, and work on next-generation market infrastructure. … Key Responsibilities Lead, mentor, and scale the engineering team across software, infrastructure, DevOps, and cybersecurity . Design and implement high-performance, low-latency trading systems with tight timing and reliability requirements. Oversee the development of client connectivity layers and ensure system performance meets demanding standards. Implement robust risk controls and operational safeguards while maintaining system efficiency. Collaborate with … engineering function in discussions with executive leadership, partners, and regulators . Ideal Candidate Profile 10+ years of engineering leadership experience , including senior management roles in trading, exchanges, or high-performance systems. Strong technical expertise in trading system architectures , low-latency infrastructure, and performance optimization. Proven experience architecting and scaling systems capable of handling high volumes with ultra-low More ❯

date: ASAP £45,000 - £48,000 per annum The Job As Data Analyst, you will turn marketing and CRM data into actionable insight that drives smarter campaign planning and performance optimisation. You will take ownership of KPI frameworks, forecasts and dashboards, ensuring data underpins every marketing decision. You will: Build and maintain dashboards in Power BI or Looker Studio … to track multi-channel campaign performance Translate business and marketing objectives into measurable data frameworks and KPIs Deliver regular reports and insight to guide campaign optimisation and strategy Forecast and model marketing outcomes using Python, R and SQL Oversee data quality, segmentation and reporting consistency across CRM and digital channels Partner with marketing and comms teams to embed … data analysis or marketing analytics, ideally within an agency environment Strong SQL, Excel and Power BI skills; Python or R for statistical modelling and forecasting Deep understanding of marketing performance metrics and KPI frameworks Excellent communicator, able to turn complex data into clear, engaging insight for non-technical audiences Comfortable managing multiple stakeholders and projects in a fast-paced More ❯

Type: Hybrid - office based 2 days per week Job Description: Design, implement, and optimise live streaming capabilities into existing software-based video pipeline Leverage hardware acceleration to develop high-performance, low-latency video capture, processing, AI inference, visualization and streaming software Work as part of a multidisciplinary team to develop robust and secure-by-design software for a medical … live video streaming development Expertise on software video pipelines (e.g., GStreamer and/or FFmpeg) Excellent C++ development skills with C++11 or higher, multi-threading, inter-process communication and performance optimisation. Proven ability to write clear, maintainable, and well-documented code. Self-starter who can own projects end-to-end—from concept and prototyping through to production. Excellent written More ❯

on Genesys-related technical issues, challenges, and solutions. Serve as a trusted advisor on Genesys technologies, capabilities, and best practices, helping stakeholders maximize the value of their Genesys investments. Performance Optimization and Tuning: Identify opportunities to optimize performance, efficiency, and scalability of Genesys contact center environments through system tuning, configuration adjustments, and capacity planning. Conduct performance assessments … diagnostic analyses, and tuning activities to ensure optimal performance under varying workloads and conditions. Training and Knowledge Transfer: Develop and deliver training sessions, workshops, and educational materials to internal teams and stakeholders on Genesys products, features, and implementation methodologies. Facilitate knowledge sharing and collaboration within the organization to build internal expertise and capabilities in Genesys technologies. Vendor Management and More ❯

modern, agile, and secure hybrid Internet-based/private underlay powered by Palo Alto Networks SD-WAN and SASE technologies. This role is critical to ensuring seamless migration, optimal performance, and robust security across their global network infrastructure. The successful candidate must be certified in either Palo Alto Networks Certified SD-WAN Engineer and/or Palo Alto Networks … components including secure web gateway (SWG), cloud access security broker (CASB), ZTNA, and firewall-as-a-service. Ensure interoperability with existing infrastructure, including firewalls, routers, and cloud services. Security & Performance Optimization Apply best practices for secure internet breakout, segmentation, and traffic steering. Monitor and optimize network performance using Palo Alto’s analytics and visibility tools. Implement policy-based More ❯

dedicated UX/UI designer, engaging in rapid daily iteration to translate high-fidelity, interactive prototypes into pixel-perfect, production-ready code. Real-Time Data Streaming: Engineer the high-performance “live transcript” view, which displays the AI-screened conversation as the phone is ringing . This involves consuming real-time streaming text data from our backend AI orchestration layer … via WebSockets. Mastering Perceived Performance: Implement the critical “mid-call intervention” feature, allowing a user to seamlessly accept a call from the AI agent. You will become an expert in designing for our < 1000ms V2V (voice-to-voice) latency budget, ensuring the entire UX flow feels fast and responsive. API & Backend Integration: Partner with our backend (Application & AI Orchestration … models required to power the Welcome Manager's features, from live transcription to post-call entity-extracted summaries. MWC Demo Ownership: Be directly responsible for the polish, stability, and performance of the Welcome Manager application for its critical debut at MWC 2026. Cross-Functional Partnership: Collaborate closely with the other Senior Android Engineer (who owns the native CallScreeningService and More ❯

dedicated UX/UI designer, engaging in rapid daily iteration to translate high-fidelity, interactive prototypes into pixel-perfect, production-ready code. ? Real-Time Data Streaming: Engineer the high-performance live transcript view, which displays the AI-screened conversation as the phone is ringing . This involves consuming real-time streaming text data from our backend AI orchestration layer … via WebSockets. ? Mastering Perceived Performance: Implement the critical mid-call intervention feature, allowing a user to seamlessly accept a call from the AI agent. You will become an expert in designing for our < 1000ms V2V (voice-to-voice) latency budget, ensuring the entire UX flow feels fast and responsive. ? API & Backend Integration: Partner with our backend (Application & AI Orchestration … models required to power the Welcome Manager's features, from live transcription to post-call entity-extracted summaries. ? MWC Demo Ownership: Be directly responsible for the polish, stability, and performance of the Welcome Manager application for its critical debut at MWC 2026. ? Cross-Functional Partnership: Collaborate closely with the other Senior Android Engineer (who owns the native CallScreeningService and More ❯

connectivity, including caching, buffering, and sync/retry mechanisms. Implement synchronisation strategies between edge devices (e.g. SQLite) and cloud systems (PostgreSQL). Drive best practices in architecture, modularity, and performance through thorough code reviews. Mentor and support engineers, contributing to a culture of technical excellence. Maintain clear and comprehensive technical documentation for APIs and services. Key Requirements as a … with strong Python experience. Proven experience deploying to, or strong passion for working on, constrained hardware (NUCs, Raspberry Pi, embedded Linux). Strong database skills (PostgreSQL, SQLite) and ORM performance optimisation. Experience with TDD and writing maintainable, production-grade code. Strong communicator with collaborative mindset. Nice-to-Haves: Experience working with embedded, IoT, kiosk, or distributed edge systems. Background More ❯

Rate: upto £50/hour – must have own limited company Start Date: ASAP Company Overview Our client is a cutting-edge medical technology company focused on building secure, high-performance software solutions that transform patient care. Their teams work at the forefront of video streaming, AI, and embedded systems, delivering innovative platforms that power next-generation medical devices. Role … We are seeking a Senior C++ Engineer with deep expertise in live video streaming and software-based video pipelines. This role involves integrating WebRTC streaming into existing systems, optimising performance using hardware acceleration, and contributing to the development of secure, production-grade software. You’ll work closely with a multidisciplinary team to deliver robust and scalable solutions for medical … applications. Key Responsibilities Design and implement live video streaming capabilities using WebRTC. Optimise video pipelines using GStreamer and/or FFmpeg with hardware acceleration. Develop high-performance C++ software with multi-threading and IPC. Collaborate with cross-functional teams to build secure-by-design medical device software. Maintain high code quality through documentation and peer reviews. Skills & Experience Expert More ❯