26 to 50 of 156 Performance Optimisation Jobs in the City of London

stunning and technically robust experiences. Key Responsibilities Develop, implement, and maintain gameplay systems and tools using C++ and Blueprints. Collaborate with designers and artists to integrate content and ensure performance and gameplay quality. Optimise performance across multiple platforms (PC, console, and/or mobile). Debug and resolve technical issues related to gameplay, physics, AI, and networking. Contribute … UE5). Strong C++ programming skills and familiarity with Unreal Blueprints. Proven experience developing and shipping at least one game or interactive 3D project. Good understanding of 3D math, performance optimisation, and debugging tools. Ability to work collaboratively in a fast-paced, cross-functional team. Excellent problem-solving skills and attention to detail. What We Offer Competitive tax … free salary and performance bonuses. Relocation support and visa sponsorship for international hires. Health insurance and annual flight allowance. Creative, collaborative studio culture in the heart of Dubai’s growing tech and gaming scene. Opportunities for career growth and professional development. If this is something of interest, then please do apply here and/or send a copy of More ❯

stunning and technically robust experiences. Key Responsibilities Develop, implement, and maintain gameplay systems and tools using C++ and Blueprints. Collaborate with designers and artists to integrate content and ensure performance and gameplay quality. Optimise performance across multiple platforms (PC, console, and/or mobile). Debug and resolve technical issues related to gameplay, physics, AI, and networking. Contribute … UE5). Strong C++ programming skills and familiarity with Unreal Blueprints. Proven experience developing and shipping at least one game or interactive 3D project. Good understanding of 3D math, performance optimisation, and debugging tools. Ability to work collaboratively in a fast-paced, cross-functional team. Excellent problem-solving skills and attention to detail. What We Offer Competitive tax … free salary and performance bonuses. Relocation support and visa sponsorship for international hires. Health insurance and annual flight allowance. Creative, collaborative studio culture in the heart of Dubai’s growing tech and gaming scene. Opportunities for career growth and professional development. If this is something of interest, then please do apply here and/or send a copy of More ❯

IT Business Analyst (LNG) - London Based - Energy Trading Role Summary Aubay is seeking an experienced IT Business Analyst to support a high-profile Vessel Performance Dashboard (VPD) project within a major energy organisation. The successful candidate will play a key role in gathering and translating business requirements into actionable data solutions for the LNG and Products shipping fleets. This … includes engaging with stakeholders, validating data, and ensuring the final dashboard supports performance optimisation and operational insights. This is a dynamic role ideal for a technically confident business analyst with experience working in complex data environments and a solid understanding of vessel operations or industrial logistics. Required Skills and Experience: Proven experience as a Business Analyst in data … between technical and business teams. Excellent documentation skills, including producing user stories, functional specifications, use cases, and process diagrams. Ability to validate and quality-assure dashboard outputs for usability, performance, and accuracy. Comfortable working across Agile and Waterfall project environments. Desired Skills and Experience: Understanding of LNG or product fleet operations, vessel performance metrics, or maritime data analytics. More ❯

IT Business Analyst (LNG) - London Based - Energy Trading Role Summary Aubay is seeking an experienced IT Business Analyst to support a high-profile Vessel Performance Dashboard (VPD) project within a major energy organisation. The successful candidate will play a key role in gathering and translating business requirements into actionable data solutions for the LNG and Products shipping fleets. This … includes engaging with stakeholders, validating data, and ensuring the final dashboard supports performance optimisation and operational insights. This is a dynamic role ideal for a technically confident business analyst with experience working in complex data environments and a solid understanding of vessel operations or industrial logistics. Required Skills and Experience: Proven experience as a Business Analyst in data … between technical and business teams. Excellent documentation skills, including producing user stories, functional specifications, use cases, and process diagrams. Ability to validate and quality-assure dashboard outputs for usability, performance, and accuracy. Comfortable working across Agile and Waterfall project environments. Desired Skills and Experience: Understanding of LNG or product fleet operations, vessel performance metrics, or maritime data analytics. More ❯

up to £300k + Equity We are working with an institutionally backed AI startup operating in stealth mode. The company builds large-scale LLMs and the in-house high-performance systems that train and deploy them efficiently. This is an opportunity for engineers from HFT or HPC backgrounds to apply their system-level expertise to a new domain, working … across runtime systems, scheduling, and optimisation to improve the efficiency of complex AI workloads. Overview You will join a small, research-driven team of engineers and scientists developing advanced model architectures and the distributed infrastructure that supports them. The environment combines large-scale compute, low-latency software engineering, and applied machine learning. Requirements Exceptional academic background, typically a Computer … Science (or related) degree from a leading university Proficiency in C++ or Python for high-performance or systems-level work Strong analytical and communication skills Experience with competitive programming or performance optimisation is advantageous Compensation Base salary up to £300k plus equity. More ❯

improve farm economics, productivity, and environmental impact . Key Responsibilities Lead technical strategy and oversee architecture for scalable, data-driven systems. Remain actively hands-on , designing and developing high-performance C#/.NET back-end systems . Mentor and guide a growing team of developers — setting technical standards and driving best practices. Oversee end-to-end solution delivery, ensuring … performance, security, and maintainability. Collaborate cross-functionally with data scientists, agronomists, and stakeholders to shape product direction. Own cloud infrastructure strategy and implementation on Microsoft Azure . Lead innovation in sustainability-focused agricultural technology and analytics . Contribute to recruitment and technical assessment (including coding challenge design and review). Candidate Assessment Process Our selection process includes a LeetCode … style technical challenge to evaluate: Algorithmic problem-solving Data structures and computational efficiency Code quality and optimisation under time constraints Ideal Candidate Profile Academic and Professional Background Degree/Masters/PhD in Computer Science, Data Science, or a related discipline Proven experience as a Back-End Developer/Engineering Lead/CTO in data-heavy environments Demonstrable history More ❯

improve farm economics, productivity, and environmental impact . Key Responsibilities Lead technical strategy and oversee architecture for scalable, data-driven systems. Remain actively hands-on , designing and developing high-performance C#/.NET back-end systems . Mentor and guide a growing team of developers setting technical standards and driving best practices. Oversee end-to-end solution delivery, ensuring … performance, security, and maintainability. Collaborate cross-functionally with data scientists, agronomists, and stakeholders to shape product direction. Own cloud infrastructure strategy and implementation on Microsoft Azure . Lead innovation in sustainability-focused agricultural technology and analytics . Contribute to recruitment and technical assessment (including coding challenge design and review). Candidate Assessment Process Our selection process includes a LeetCode … style technical challenge to evaluate: Algorithmic problem-solving Data structures and computational efficiency Code quality and optimisation under time constraints Ideal Candidate Profile Academic and Professional Background Degree/Masters/PhD in Computer Science, Data Science, or a related discipline Proven experience as a Back-End Developer/Engineering Lead/CTO in data-heavy environments Demonstrable history More ❯

data, product, and engineering teams, not a "heads-down coder" type. Top 4 Core Skills Python - workflow automation, data processing, and ETL/ELT development. Snowflake - scalable data architecture, performance optimisation, and governance. SQL - expert-level query writing and optimisation for analytics and transformations. dbt (Data Build Tool) - modular data modelling, testing, documentation, and version control. Key More ❯

data, product, and engineering teams, not a heads-down coder type. Top 4 Core Skills Python workflow automation, data processing, and ETL/ELT development. Snowflake scalable data architecture, performance optimisation, and governance. SQL expert-level query writing and optimisation for analytics and transformations. dbt (Data Build Tool) modular data modelling, testing, documentation, and version control. Key More ❯

/dimension design, hierarchies, SCDs). Proven experience building ETL/ELT pipelines using tools such as SSIS , dbt , or Airflow . Solid understanding of database administration , tuning, and performance optimisation across MSSQL and PostgreSQL . Key Responsibilities: Design and maintain data models that meet business requirements, ensuring scalability, consistency, and accuracy. Build and manage ETL/ELT … pipelines to integrate data from S3 and various sources into the analytical layer. Administer and optimise MSSQL Server and PostgreSQL databases for performance and reliability. Collaborate with internal teams to improve data availability, reliability, and performance across systems. Design and maintain secure, scalable AWS cloud infrastructure supporting analytical workloads. Create and maintain dimensional and semantic data models for More ❯

Solutions Candidate Assessment Process: LeetCode-Style Coding Challenge Designed to evaluate algorithmic problem-solving skills Focus on efficient, optimised solutions Challenges will test: Data Structures Algorithm Design Computational Thinking Performance Optimisation Ideal Candidate Profile: Academic and Professional Requirements: Minimum Qualification: Degree/Masters/PhD in Computing, Data Science, or Equivalent Proven Commercial Experience as a Back-End More ❯

Solutions Candidate Assessment Process: LeetCode-Style Coding Challenge Designed to evaluate algorithmic problem-solving skills Focus on efficient, optimised solutions Challenges will test: Data Structures Algorithm Design Computational Thinking Performance Optimisation Ideal Candidate Profile: Academic and Professional Requirements: Minimum Qualification: Degree/Masters/PhD in Computing, Data Science, or Equivalent Proven Commercial Experience as a Back-End More ❯

and Vercel for front-end deployments Scale: Multi-region replication, 3-cloud backups, and private Azure failover Nice to Haves Experience with Kubernetes or migration to Fargate Background in performance optimisation for large-scale data systems Exposure to analytics, media, or streaming environments Strong mentoring or leadership experience in a small engineering team Why Join This is your More ❯

and Vercel for front-end deployments Scale: Multi-region replication, 3-cloud backups, and private Azure failover Nice to Haves Experience with Kubernetes or migration to Fargate Background in performance optimisation for large-scale data systems Exposure to analytics, media, or streaming environments Strong mentoring or leadership experience in a small engineering team Why Join This is your More ❯

solutions, with a preference for experience in both relational databases like SQL Server and NoSQL databases like MongoDB or CosmosDB. debugging and troubleshooting skills within the .NET environment, including performance optimization and monitoring. Familiarity with a range of software development tools, such as source code management (e.g. Azure DevOps, Git), build and release management (e.g. Azure DevOps Pipelines) and More ❯

solutions, with a preference for experience in both relational databases like SQL Server and NoSQL databases like MongoDB or CosmosDB. debugging and troubleshooting skills within the .NET environment, including performance optimization and monitoring. Familiarity with a range of software development tools, such as source code management (e.g. Azure DevOps, Git), build and release management (e.g. Azure DevOps Pipelines) and More ❯

AWS Bedrock, SageMaker, or GCP Vertex AI to deliver scalable cloud-based systems. Implementing strong MLOps and LLMOps practices - from CI/CD and model monitoring to cost and performance optimisation. Partnering with Data Engineers to ensure the pipelines and data structures feeding the models are robust and scalable. Keeping an eye on what's next - new GenAI frameworks More ❯

AWS Bedrock, SageMaker, or GCP Vertex AI to deliver scalable cloud-based systems. Implementing strong MLOps and LLMOps practices - from CI/CD and model monitoring to cost and performance optimisation. Partnering with Data Engineers to ensure the pipelines and data structures feeding the models are robust and scalable. Keeping an eye on what's next - new GenAI frameworks More ❯

will lead a team of skilled network engineers, define the enterprise networking roadmap, and collaborate with cross-functional teams — including Security, Infrastructure, and IT Operations — to deliver a high-performance, high-availability network platform that underpins mission-critical business and customer operations. Key Responsibilities Strategic Leadership Define and execute the strategic vision for enterprise and customer network infrastructure across … scalability across the enterprise. Lead continuous improvement initiatives, driving innovation, automation, and standardisation in network design and operations. Architecture, Design & Delivery Oversee the end-to-end design, implementation, and optimisation of LAN, WAN, SD-WAN, VPN, and wireless solutions across all environments. Manage enterprise routing, switching, VLAN segmentation, firewall policies, telephony systems (ISDN/SIP) , and internal/external … internet access. Ensure network resilience through robust backup, redundancy, and disaster recovery mechanisms. Lead network capacity planning, performance optimisation, and technology refresh cycles . Own the full lifecycle of network-related projects , from requirements gathering through to procurement, budgeting, vendor management , and security assessments . Security, Compliance & Governance Partner with Information Security teams to enhance network security posture More ❯

will lead a team of skilled network engineers, define the enterprise networking roadmap, and collaborate with cross-functional teams — including Security, Infrastructure, and IT Operations — to deliver a high-performance, high-availability network platform that underpins mission-critical business and customer operations. Key Responsibilities Strategic Leadership Define and execute the strategic vision for enterprise and customer network infrastructure across … scalability across the enterprise. Lead continuous improvement initiatives, driving innovation, automation, and standardisation in network design and operations. Architecture, Design & Delivery Oversee the end-to-end design, implementation, and optimisation of LAN, WAN, SD-WAN, VPN, and wireless solutions across all environments. Manage enterprise routing, switching, VLAN segmentation, firewall policies, telephony systems (ISDN/SIP) , and internal/external … internet access. Ensure network resilience through robust backup, redundancy, and disaster recovery mechanisms. Lead network capacity planning, performance optimisation, and technology refresh cycles . Own the full lifecycle of network-related projects , from requirements gathering through to procurement, budgeting, vendor management , and security assessments . Security, Compliance & Governance Partner with Information Security teams to enhance network security posture More ❯

Develop and optimise ETL/ELT workflows using Azure Data Factory, applying robust transformation logic, validation, and lineage tracking to support analytics and reporting. Modernise and manage databases , ensuring performance optimisation, governance standards, and scalable architecture across regions and environments. Oversee cloud operations and resilience , including usage optimisation, disaster recovery, and data archiving in line with governance … and collaboration , leading data mapping, model design, and cross-functional workshops to support platform migration and ongoing delivery. Experience: 610 years experience with SQL Server (including T-SQL and performance tuning). Proven background in ETL/ELT design (ideally using Azure Data Factory). Hands on experience with cloud-based data ingestion and transformation (preferably Azure). Familiarity More ❯

Develop and optimise ETL/ELT workflows using Azure Data Factory, applying robust transformation logic, validation, and lineage tracking to support analytics and reporting. Modernise and manage databases , ensuring performance optimisation, governance standards, and scalable architecture across regions and environments. Oversee cloud operations and resilience , including usage optimisation, disaster recovery, and data archiving in line with governance … collaboration , leading data mapping, model design, and cross-functional workshops to support platform migration and ongoing delivery. Experience: 6–10 years experience with SQL Server (including T-SQL and performance tuning). Proven background in ETL/ELT design (ideally using Azure Data Factory). Hands on experience with cloud-based data ingestion and transformation (preferably Azure). Familiarity More ❯

Collaborate with quants and traders to test and deploy new ideas Build and maintain robust, scalable codebases for live and simulated trading Contribute to continuous improvement across data quality, performance, and reliability Requirements 13 years professional software development experience (Python preferred) Experience building or maintaining back-testing systems , APIs, or data tools Strong understanding of algorithms, data structures, and … performance optimisation Analytical mindset with interest in systematic trading and quantitative research Nice to Have Exposure to trading systems, market data, or algo/bot development Familiarity with numerical libraries (NumPy, Pandas, Numba, etc.) Understanding of version control, CI/CD, or distributed computing More ❯

Collaborate with quants and traders to test and deploy new ideas Build and maintain robust, scalable codebases for live and simulated trading Contribute to continuous improvement across data quality, performance, and reliability Requirements 1–3 years’ professional software development experience (Python preferred) Experience building or maintaining back-testing systems , APIs, or data tools Strong understanding of algorithms, data structures … and performance optimisation Analytical mindset with interest in systematic trading and quantitative research Nice to Have Exposure to trading systems, market data, or algo/bot development Familiarity with numerical libraries (NumPy, Pandas, Numba, etc.) Understanding of version control, CI/CD, or distributed computing More ❯

and new ideas. What You Bring ⚡ SDR Experience 1+ years quota-carrying SDR experience (SaaS, martech, or agency services) with ambition to progress to AE within a year. 📈 Research & Optimisation Mindset Obsess over prospecting, performance optimisation, and leveraging AI + data to smash targets. 🔎 List-Building Strength Skilled at identifying ICPs, budget owners, and decision-makers. ✍️ Communication More ❯