26 to 50 of 71 Performance Tuning Jobs in the City of London

It is hybrid and will require 3x days onsite per week. You will be responsible for the design, optimize, and maintain Oracle-based data warehouse solutions to ensure high performance, scalability, and alignment with business intelligence and analytics needs. You will have proven experience reviewing and optimizing Oracle data warehouse environments, conducting performance tuning, indexing strategies and … partitioning. Skills: Deep understanding of Oracle data warehouse architecture and performance optimization. Strong knowledge of relational and OLAP modelling principles. Advanced SQL and PL/SQL skills (Oracle 11g/12c or later). Familiarity with data profiling, data quality assessment, and metadata management. Experience identifying and implementing improvements in data warehouse performance, structure, and scalability. More ❯

with AWS ECS, ECR, and Fargate. Proficient in Python, Node.js, and Docker for building and containerizing secure, scalable applications. Strong knowledge of Apigee and API management, including design patterns, performance tuning, and analytics. Solid understanding of distributed systems and enterprise application architecture with a focus on reliability and security. You will need to be eligible to go through More ❯

integration solutions. Utilise Git for source control and Jenkins/GitHub Actions for CI/CD pipelines. Work with data persistence layers including MySQL and DynamoDB . Assist in performance tuning, monitoring, and automation of API-related services. Contribute to technical documentation and promote knowledge sharing across teams. What We're Looking For (Must-Haves): Strong development experience More ❯

workflows. Experiment with new tools, technologies and approaches to support the organisation’s analytics and insights strategy. Provide ongoing support for data products, including incident management and defining key performance metrics. Collaborate on new data initiatives from the earliest stages, working across multiple technical teams to bring ideas to life. Contribute to proof-of-concept evaluations of emerging technologies … AWS QuickSight. Experience with open-source data stack tools like Airflow, DBT, Airbyte or similar. Strong grasp of software development best practices and CI/CD processes. Skilled in performance tuning, testing, and automation within data engineering environments. Excellent communication skills, with the ability to influence and collaborate effectively with stakeholders across teams. Why Join You’ll be More ❯

workflows. Experiment with new tools, technologies and approaches to support the organisation’s analytics and insights strategy. Provide ongoing support for data products, including incident management and defining key performance metrics. Collaborate on new data initiatives from the earliest stages, working across multiple technical teams to bring ideas to life. Contribute to proof-of-concept evaluations of emerging technologies … AWS QuickSight. Experience with open-source data stack tools like Airflow, DBT, Airbyte or similar. Strong grasp of software development best practices and CI/CD processes. Skilled in performance tuning, testing, and automation within data engineering environments. Excellent communication skills, with the ability to influence and collaborate effectively with stakeholders across teams. Why Join You’ll be More ❯

PowerApps (Canvas & Model-driven) PowerAutomate (Cloud flows, RPA) Dataverse (Advanced schema design, entity relationships, security roles) Microsoft 365: Integration with SharePoint, Teams, Exchange SQL: Complex queries and stored procedures Performance tuning and query optimisation ETL processes, data migration, and database design (desirable) Additional Skills: API integration Azure DevOps Application Lifecycle Management Workflow design (e.g., Visio) UX/UI More ❯

proficiency and at least 5 years of production experience with Go (Golang) . This role is centered on Go, and we require deep experience with its concurrency patterns and performance tuning. ? Strong, proven experience designing, building, and scaling high-availability RESTful APIs for mobile or web clients. ? Deep experience with distributed systems, microservices architecture, and event-driven patterns. ? Demonstrated More ❯

to: Perform ongoing system maintenance, patching, and upgrades in coordination with change management procedures. Manage user access controls, including provisioning, de-provisioning, and access reviews. Monitor system health and performance; initiate health checks and proactively remediate issues. Respond to and resolve incidents and service requests in line with SLAs. Provide break/fix troubleshooting and root cause analysis across … runbooks, and support knowledge base articles. Track and report on improvement KPIs (e.g., ticket trends, patching success rates). Identify inefficiencies and propose automation or process changes. Monitor application performance and assist with capacity planning and tuning. Collaborate with infrastructure teams to support system scalability and optimization. Review, prepare, and implement approved changes following structured change control processes. Support … delivery teams and Information Security, Infrastructure. Track and report on application usage, adoption trends, and user engagement using analytics tools. Measure and report system uptime, availability, SLAs, and service performance trends. Partner with stakeholders to define and monitor adoption success criteria for newly implemented applications. Use telemetry and analytics to identify opportunities for user enablement and feature optimization. Ensure More ❯

to: Perform ongoing system maintenance, patching, and upgrades in coordination with change management procedures. Manage user access controls, including provisioning, de-provisioning, and access reviews. Monitor system health and performance; initiate health checks and proactively remediate issues. Respond to and resolve incidents and service requests in line with SLAs. Provide break/fix troubleshooting and root cause analysis across … runbooks, and support knowledge base articles. Track and report on improvement KPIs (e.g., ticket trends, patching success rates). Identify inefficiencies and propose automation or process changes. Monitor application performance and assist with capacity planning and tuning. Collaborate with infrastructure teams to support system scalability and optimization. Review, prepare, and implement approved changes following structured change control processes. Support … delivery teams and Information Security, Infrastructure. Track and report on application usage, adoption trends, and user engagement using analytics tools. Measure and report system uptime, availability, SLAs, and service performance trends. Partner with stakeholders to define and monitor adoption success criteria for newly implemented applications. Use telemetry and analytics to identify opportunities for user enablement and feature optimization. Ensure More ❯

Hybrid/On-site) Location: London, UK Type: Full-time | Permanent Salary: Competitive + equity + benefits Are you a seasoned Rust Engineer with a passion for building high-performance, reliable systems? We’re looking for an experienced Senior Rust Engineer to join our London team and take ownership of critical backend components that power our next-generation platform. … Mentor junior and mid-level engineers, sharing best practices in systems design and Rust development Collaborate with cross-functional teams to deliver scalable, secure, and fault-tolerant applications Drive performance tuning, code reviews, and architectural improvements across the stack What We’re Looking For 5–8+ years of professional software engineering experience 3–5+ years of hands-on … experience with Rust in production environments Strong understanding of systems programming , concurrency , networking , and low-level performance optimisation Experience with microservices , distributed systems , or blockchain technologies is highly desirable Familiarity with Linux systems , CI/CD pipelines , containerisation (Docker/Kubernetes) , and cloud infrastructure (AWS, GCP, or Azure) A pragmatic engineer who values clean code, testing, and long-term More ❯

Hybrid/On-site) Location: London, UK Type: Full-time | Permanent Salary: Competitive + equity + benefits Are you a seasoned Rust Engineer with a passion for building high-performance, reliable systems? We’re looking for an experienced Senior Rust Engineer to join our London team and take ownership of critical backend components that power our next-generation platform. … Mentor junior and mid-level engineers, sharing best practices in systems design and Rust development Collaborate with cross-functional teams to deliver scalable, secure, and fault-tolerant applications Drive performance tuning, code reviews, and architectural improvements across the stack What We’re Looking For 5–8+ years of professional software engineering experience 3–5+ years of hands-on … experience with Rust in production environments Strong understanding of systems programming , concurrency , networking , and low-level performance optimisation Experience with microservices , distributed systems , or blockchain technologies is highly desirable Familiarity with Linux systems , CI/CD pipelines , containerisation (Docker/Kubernetes) , and cloud infrastructure (AWS, GCP, or Azure) A pragmatic engineer who values clean code, testing, and long-term More ❯

DMS). - Familiarity with 200+ OOTB integrations and strategies for custom integration in complex environments. Enterprise-Scale Deployments: - Expertise in multi-region, high-availability architectures, disaster recovery planning, and performance tuning for large-scale environments. Enterprise Engagement * Proven track record of supporting complex enterprise deals, including running technical workshops, delivering tailored demos, and managing proof-of-value (POV More ❯

DataPower Developer to join our team to support project’s environment. The successful candidate will be responsible for diagnosing, troubleshooting, and resolving environment-related issues, ensuring high availability and performance of the project infrastructure (in datapower and AWS). This role requires a hands-on technical expert with a strong background in DataPower development, complemented by knowledge of AWS … cloud resources including CloudWatch for logging and alerting, DynamoDB for database management, and AWS Lambda for serverless compute tasks related to project workflows. Implement best practices for environment stability, performance tuning, and security compliance. Produce detailed technical documentation, status reports, and issue logs for ongoing support and knowledge sharing. Communicate effectively with cross-functional teams including developers, infrastructure More ❯

DataPower Developer to join our team to support project’s environment. The successful candidate will be responsible for diagnosing, troubleshooting, and resolving environment-related issues, ensuring high availability and performance of the project infrastructure (in datapower and AWS). This role requires a hands-on technical expert with a strong background in DataPower development, complemented by knowledge of AWS … cloud resources including CloudWatch for logging and alerting, DynamoDB for database management, and AWS Lambda for serverless compute tasks related to project workflows. Implement best practices for environment stability, performance tuning, and security compliance. Produce detailed technical documentation, status reports, and issue logs for ongoing support and knowledge sharing. Communicate effectively with cross-functional teams including developers, infrastructure More ❯

team of developers while remaining actively engaged in technical solutioning and development. • Ensure alignment of data models and reports with business KPIs, regulatory requirements, and financial planning processes. • Perform performance tuning of large datasets, ensuring efficient queries and faster reporting outputs. • Work with cross-functional teams (Finance, IT, Data Governance, Architecture) to ensure end-to-end lifecycle delivery …/4HANA and non-SAP data sources. Should have hands on experience on modeling for FI(GL,AP,AR,AA, and CO) processes. • Strong grasp of data governance, lineage, performance optimization, and data security concepts. • Proven ability to design and implement end-to-end analytics solutions from requirements gathering to production rollout. • Excellent communication and stakeholder management skills. • SAP More ❯

team of developers while remaining actively engaged in technical solutioning and development. • Ensure alignment of data models and reports with business KPIs, regulatory requirements, and financial planning processes. • Perform performance tuning of large datasets, ensuring efficient queries and faster reporting outputs. • Work with cross-functional teams (Finance, IT, Data Governance, Architecture) to ensure end-to-end lifecycle delivery …/4HANA and non-SAP data sources. Should have hands on experience on modeling for FI(GL,AP,AR,AA, and CO) processes. • Strong grasp of data governance, lineage, performance optimization, and data security concepts. • Proven ability to design and implement end-to-end analytics solutions from requirements gathering to production rollout. • Excellent communication and stakeholder management skills. • SAP More ❯

models for applications such as object detection, segmentation, tracking, and behavior analysis in real-world retail environments. You will be responsible for optimizing inference pipelines to achieve real-time performance on both edge devices and cloud infrastructure. Collaboration with data and product teams will be key in defining and prototyping innovative use cases, along with developing synthetic data pipelines … to enhance model robustness. Key Responsibilities Design, train, and deploy advanced Computer Vision models for applications including object detection, segmentation, and behavior analysis. Optimize inference pipelines for real-time performance on edge devices (e.g., NVIDIA Jetson, Coral) and cloud environments. Collaborate with cross-functional teams to define new use cases, prototype solutions, and facilitate deployment from lab to real … track record of live deployments in production environments. Proficiency in Python and PyTorch; familiarity with frameworks such as OpenCV, TensorRT, ONNX, or Triton is essential. Knowledge of low-latency performance tuning and multi-threaded programming for real-time processing. Proven experience with object detection and tracking models (e.g., YOLO, Deep SORT, DINOv2). Experience deploying models on edge More ❯

models for applications such as object detection, segmentation, tracking, and behavior analysis in real-world retail environments. You will be responsible for optimizing inference pipelines to achieve real-time performance on both edge devices and cloud infrastructure. Collaboration with data and product teams will be key in defining and prototyping innovative use cases, along with developing synthetic data pipelines … to enhance model robustness. Key Responsibilities Design, train, and deploy advanced Computer Vision models for applications including object detection, segmentation, and behavior analysis. Optimize inference pipelines for real-time performance on edge devices (e.g., NVIDIA Jetson, Coral) and cloud environments. Collaborate with cross-functional teams to define new use cases, prototype solutions, and facilitate deployment from lab to real … track record of live deployments in production environments. Proficiency in Python and PyTorch; familiarity with frameworks such as OpenCV, TensorRT, ONNX, or Triton is essential. Knowledge of low-latency performance tuning and multi-threaded programming for real-time processing. Proven experience with object detection and tracking models (e.g., YOLO, Deep SORT, DINOv2). Experience deploying models on edge More ❯

house from low-latency trading infrastructure and data pipelines to machine learning tools and real-time UIs giving engineers full visibility into the entire system and how it drives performance in live markets. In this role, you’ll work closely with the UI and platform teams to: Develop high-performance Java backend services supporting front-end applications. Optimise … data transport, monitoring and performance across the stack. Contribute to tools spanning trading, risk, and market analytics. They’re looking for: 4+ years’ experience in Java (React/TypeScript a plus). Strong CompSci fundamentals and clean architecture principles. Interest in real-time systems, performance tuning or trading environments. The culture is open and highly collaborative, where More ❯

Systems Software Engineer (Python) Are you a top-tier Software Engineer with a passion for high-performance systems and a knack for solving complex infrastructure challenges? We are seeking an elite developer to join a rapidly growing, highly respected HFT company that operates at the cutting edge of its industry. This isn't a typical infrastructure support role. Our … class blend of software development and systems knowledge: Python is essential, including building production-grade, highly reliable systems. A comprehensive understanding of the Linux operating system, including its internals, performance tuning, and low-level functionalities. Strong knowledge of networking concepts (TCP/IP, routing, load balancing, etc.) and experience troubleshooting and optimising network performance at the system … package, which commonly includes: Health and Wellness benefits like fully covered health insurance, dental, vision, life insurance, and mental health programs. Financial benefits such as a generous pension and performance bonuses. Office Perks including free daily meals, snacks, drinks, commuter benefits, a fitness stipend or on-site gym, and relocation assistance. If you are an experienced Systems Software Engineer More ❯

world-leading quantitative trading firm in the search for an Experienced Software Developer/Engineer to join their OTC technology group in London. This team designs and develops high-performance trading platforms that span both OTC liquidity provision and on-venue execution, covering asset classes such as equities, FX, and crypto. Operating within a highly autonomous environment, the team … works closely with quants, risk and compliance stakeholders, and trading analysts to transform requirements into production-grade systems. With a focus on safety, performance, and velocity, this is a chance to contribute to the design of mission-critical infrastructure with a small, experienced group of engineers where impact is immediate and highly visible... Key Responsibilities Design, build, and maintain … quants, analysts, and compliance stakeholders to refine system requirements and deliver production-ready solutions Implement and optimise low-latency infrastructure, including network stack integration, thread-per-core architectures, and performance tuning Contribute to team-wide design discussions, code reviews, and continuous improvement initiatives Take ownership of projects across the full development lifecycle, from architecture through deployment and monitoring More ❯

world-leading quantitative trading firm in the search for an Experienced Software Developer/Engineer to join their OTC technology group in London. This team designs and develops high-performance trading platforms that span both OTC liquidity provision and on-venue execution, covering asset classes such as equities, FX, and crypto. Operating within a highly autonomous environment, the team … works closely with quants, risk and compliance stakeholders, and trading analysts to transform requirements into production-grade systems. With a focus on safety, performance, and velocity, this is a chance to contribute to the design of mission-critical infrastructure with a small, experienced group of engineers where impact is immediate and highly visible... Key Responsibilities Design, build, and maintain … quants, analysts, and compliance stakeholders to refine system requirements and deliver production-ready solutions Implement and optimise low-latency infrastructure, including network stack integration, thread-per-core architectures, and performance tuning Contribute to team-wide design discussions, code reviews, and continuous improvement initiatives Take ownership of projects across the full development lifecycle, from architecture through deployment and monitoring More ❯

PCI-DSS, SOX). Lead integration efforts with identity providers (IdPs), service providers (SPs), and third-party systems using SAML, OAuth2, OpenID Connect. Conduct security assessments, threat modeling, and performance tuning of ForgeRock AM components. Enable and support product upgrade and engineering aspects for Authentication platform and associated components Provide technical leadership and mentoring to IAM engineers and More ❯

PCI-DSS, SOX). Lead integration efforts with identity providers (IdPs), service providers (SPs), and third-party systems using SAML, OAuth2, OpenID Connect. Conduct security assessments, threat modeling, and performance tuning of ForgeRock AM components. Enable and support product upgrade and engineering aspects for Authentication platform and associated components Provide technical leadership and mentoring to IAM engineers and More ❯

be able to work independenty with minimal help/guidance Good Understanding of Airflow,Data Fusion and Data Flow Strong Background and experience in Data Ingestions,Transformation,Modeling and Performance tuning. One migration Experience from Cornerstone to GCP will be added advantage Suppport the design and development of BigData echosystem Experience in building complex SQL Queries Strong Communication Skills More ❯