Permanent Performance Optimisation Jobs in the City of London

9 of 9 Permanent Performance Optimisation Jobs in the City of London

Software Engineer - Solution Design Exp (City Of London)

City of London, Greater London, UK
Lorien
Step Functions, S3, SNS/SQS, Cognito, etc.). Actively contribute to back-end development using Python, ensuring best practices in clean code and performance optimization. Support front-end architecture and implementation using Angular, ensuring a seamless and scalable user experience. Ensure robust CI/CD pipelines, infrastructure as More ❯
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Software Engineer - Solution Design Exp

City Of London, England, United Kingdom
Lorien
Step Functions, S3, SNS/SQS, Cognito, etc.). Actively contribute to back-end development using Python, ensuring best practices in clean code and performance optimization. Support front-end architecture and implementation using Angular, ensuring a seamless and scalable user experience. Ensure robust CI/CD pipelines, infrastructure as More ❯
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Java Developer - Ultra Low Latency

City Of London, England, United Kingdom
Selby Jennings
Role Overview: We are looking for a highly skilled Java Software Engineer to join a fast-paced, high-performance engineering team focused on building ultra-low latency systems for a leading digital asset trading platform. This role is ideal for someone with a deep understanding of real-time systems … and a passion for performance optimisation in latency-sensitive environments. Key Responsibilities: Design, implement, and optimise ultra-low latency trading components in Java Develop and maintain exchange connectivity , order routing, and market data processing systems Collaborate with traders and quantitative developers to deliver high-performance, production-grade … solutions Continuously profile and tune system performance to minimise latency and maximise throughput Required Skills & Experience: Strong proficiency in core Java , with a focus on performance, concurrency, and memory management Proven experience building low-latency, high-throughput systems in trading or similarly demanding environments Deep understanding of multithreading More ❯
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Remote Azure Data Engineer (Contract)

City of London, London, United Kingdom
Hybrid / WFH Options
Discovered MENA
BI teams on reporting layers Supporting data discovery, KPI definition, and data quality initiatives Documenting architecture, metadata, and data lineage for project transparency Driving performance optimization and issue resolution across the data stack ✅ What We’re Looking For: 5+ years of experience in data engineering, integration, and ETL/ More ❯
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UI Developer (City Of London)

City of London, Greater London, UK
Selby Jennings
their London office. Specialising in React/TypeScript and a server side language, you will be focused on building and enhancing real-time, high-performance user interfaces for trading platforms as well as contributing to maintaining and developing platform infrastructure. Key Responsibilities: Design, develop, and maintain sophisticated front-end … consistency across applications. Participate in the full software development lifecycle, including requirements gathering, design, coding, testing, deployment, and support. Contribute to the modernization and performance optimization of existing UI infrastructure. Preferred Qualifications: Proven experience working on financial systems, ideally within trading platforms or other real-time systems . Strong More ❯
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UI Developer

City Of London, England, United Kingdom
Selby Jennings
their London office. Specialising in React/TypeScript and a server side language, you will be focused on building and enhancing real-time, high-performance user interfaces for trading platforms as well as contributing to maintaining and developing platform infrastructure. Key Responsibilities: Design, develop, and maintain sophisticated front-end … consistency across applications. Participate in the full software development lifecycle, including requirements gathering, design, coding, testing, deployment, and support. Contribute to the modernization and performance optimization of existing UI infrastructure. Preferred Qualifications: Proven experience working on financial systems, ideally within trading platforms or other real-time systems . Strong More ❯
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Technical Development Lead - Decarbonisation and Energy

City of London, London, United Kingdom
Astute Technical Recruitment Ltd
leadership across RIBA Stages 0-4 and Stage 7 to ensure integrated engineering and commercial outcomes. Oversee building and system-level energy modelling for performance optimisation. Develop bespoke modelling tools for energy forecasting, demand-side management, and system analysis. Create robust business cases and financial models to support funding … bids and project viability. Present complex technical and financial insights to internal and external stakeholders. Support the optimisation of building energy systems via digital twin models, analytics, and BEMS improvements. Collaborate across engineering, commercial, business development, and delivery teams to ensure successful project execution. Professional qualifications We are looking More ❯
Employment Type: Permanent
Salary: £90,000
Posted:

C++ Engineer - Feed Handlers (City Of London)

City of London, Greater London, UK
Stanford Black Limited
Feed Handler team, a critical part of the firm’s high-frequency trading platform. This is a strategic hire into one of the most performance-sensitive teams in the organisation, responsible for developing low-latency systems that process and enrich global market data in real time. The code built … with direct input from the business, full visibility of your impact, and ownership from design through to production. Key Responsibilities: Design and implement high-performance, enterprise-grade C++ systems for ingesting and distributing market data. Contribute to system architecture decisions, performance tuning, and strategic platform development. Own solutions … programming. Experience building low-latency or high-throughput systems (financial experience essential). Strong problem-solving skills, attention to detail, and a passion for performance optimisation. Why Apply? Work in a high-impact seat building mission-critical infrastructure. Cutting-edge tech and a firm-wide commitment to engineering excellence. More ❯
Posted:

C++ Engineer – Feed Handlers

City Of London, England, United Kingdom
Stanford Black Limited
Feed Handler team, a critical part of the firm’s high-frequency trading platform. This is a strategic hire into one of the most performance-sensitive teams in the organisation, responsible for developing low-latency systems that process and enrich global market data in real time. The code built … with direct input from the business, full visibility of your impact, and ownership from design through to production. Key Responsibilities: Design and implement high-performance, enterprise-grade C++ systems for ingesting and distributing market data. Contribute to system architecture decisions, performance tuning, and strategic platform development. Own solutions … programming. Experience building low-latency or high-throughput systems (financial experience essential). Strong problem-solving skills, attention to detail, and a passion for performance optimisation. Why Apply? Work in a high-impact seat building mission-critical infrastructure. Cutting-edge tech and a firm-wide commitment to engineering excellence. More ❯
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Performance Optimisation
the City of London
25th Percentile
£65,000
Median
£75,000
75th Percentile
£96,250
90th Percentile
£102,500