51 to 75 of 179 Performance Tuning Jobs in London

design, development and management of high quality, efficient and effective solutions in Microsoft SQL Server T-SQL and related tools to support and extend data migration projects. Optimise database performance by identifying bottlenecks, fine-tuning queries, and implementing best practices to enhance the efficiency of internal systems and improve response times. Analyse and cleanse production-level data to … Writing complex scripts for data manipulation and management report generation Export/Import of data Data conversion/migration Data correction Database object creation (Functions, Stored Procedures, Tables, etc) Performance tuning of new and existing code Analyse SQL code for potential flaws Optimisation and maintenance of existing products Desired Skills 3+ years of SQL Developer experience supporting MS More ❯

and technology. A typical day in this role involves collaborating with technology leaders, contributing to the enhancement of day-to-day operations, and ensuring improvements in availability, reliability, latency, performance, and efficiency of the ESC. You will be required to occasionally participate in "on-call" rotations to resolve incidents occurring out-of-hours. The overarching goal is to deliver … cloud providers. A typical day in this role involves collaborating with technology leaders, contributing to the enhancement of day-to-day operations, and ensuring improvements in availability, reliability, latency, performance, and efficiency of the ESC. You will be required to occasionally participate in "on-call" rotations to resolve incidents occurring out-of-hours. Eligibility requirement Fluency in written and … including our Conversations on Race and Ethnicity (CORE) and AmazeCon (gender diversity) conferences, inspire us to never stop embracing our uniqueness. Mentorship & Career Growth We're continuously raising our performance bar as we strive to become Earth's Best Employer. That's why you'll find endless knowledge-sharing, mentorship and other career-advancing resources here to help you More ❯

per day - PAYE via Umbrella Only Role Overview: We are looking for a seasoned Azure Batch Cloud Architect to lead the design and implementation of scalable, secure, and high-performance batch processing solutions in Microsoft Azure. This role is pivotal in supporting data-intensive workloads and compute-heavy operations critical to financial services, including risk modelling, regulatory reporting, and … to ensure end-to-end automation, compliance, and observability. Define and enforce governance, cost optimisation, and security best practices for batch workloads in Azure. Lead proof-of-concept initiatives, performance tuning, and capacity planning for compute-intensive applications. Provide architectural guidance on containerised batch jobs using Docker and Azure Kubernetes Service (AKS) where applicable. Maintain documentation and provide … Event Grid, or Logic Apps. Strong communication and stakeholder management skills. Preferred Qualifications: Azure certifications (e.g., Azure Solutions Architect Expert, Azure DevOps Engineer Expert). Experience with HPC (High Performance Computing) or grid computing in financial services. knowledge of cost modelling and performance benchmarking for batch workloads. Familiarity with hybrid cloud or multi-cloud strategies. More ❯

multidisciplinary teams Desirable Attributes Exposure to microservices architecture and event-driven systems (e.g., Kafka) Experience with design systems and component libraries (e.g., Material, Storybook) Familiarity with observability tools and performance tuning Prior consulting experience or experience in client-facing roles Engagement Model Outside IR35 12-month initial contract with potential for extension or permanent employment Hybrid working model More ❯

PostgreSQL or similar. Strong working knowledge of Oracle PL/SQL and the ability to translate procedural logic into C#. Solid experience with PostgreSQL, including handling dialect differences and performance tuning. Comfortable working in hybrid environments where legacy and modern platforms coexist. Familiarity with AI-enabled tools that accelerate development and migration tasks. Strong grasp of software architecture principles More ❯

and technology. A typical day in this role involves collaborating with technology leaders, contributing to the enhancement of day-to-day operations, and ensuring improvements in availability, reliability, latency, performance, and efficiency of the ESC. You will be required to occasionally participate in "on-call" rotations to resolve incidents occurring out-of-hours. The overarching goal is to deliver … the Life A typical day in this role involves collaborating with technology leaders, contributing to the enhancement of day-to-day operations, and ensuring improvements in availability, reliability, latency, performance, and efficiency of the ESC. You'll spend roughly 50% of your time operating production systems and 50% working with your team to make long-term improvements to the … reliability, availability, and performance of those software systems. Over the course of a week, you will root cause why some deployments recently failed, and fix those bugs. Later in the week you may execute a highly sensitive time-critical change to production. You can round off the week by participating in design discussions by another team, writing code, and More ❯

Responsibilities: Develop and maintain front-to-back pricing and risk solutions using Java 21 Collaborate with Front Office, Quants, Risk, and DevOps teams Prioritise non-functional requirements such as performance, reliability, and maintainability Improve development tooling, deployment pipelines, and overall engineering processes Provide level 3 support and contribute to operational excellence Essential Skills: Strong core Java development (streams, lambdas … concurrency APIs) Deep understanding of distributed systems and multithreaded architectures Proficiency in TDD, agile delivery, and CI/CD for complex enterprise systems Experience with performance tuning and monitoring tools (JVisualVM, Prometheus, Elastic Stack) Solid Computer Science foundation (algorithms, data structures, concurrency) Proven track record delivering applications from design to production Desirable Experience: Background in investment banking, particularly More ❯

Responsibilities: Develop and maintain front-to-back pricing and risk solutions using Java 21 Collaborate with Front Office, Quants, Risk, and DevOps teams Prioritise non-functional requirements such as performance, reliability, and maintainability Improve development tooling, deployment pipelines, and overall engineering processes Provide level 3 support and contribute to operational excellence Essential Skills: Strong core Java development (streams, lambdas … concurrency APIs) Deep understanding of distributed systems and multithreaded architectures Proficiency in TDD, agile delivery, and CI/CD for complex enterprise systems Experience with performance tuning and monitoring tools (JVisualVM, Prometheus, Elastic Stack) Solid Computer Science foundation (algorithms, data structures, concurrency) Proven track record delivering applications from design to production Desirable Experience: Background in investment banking, particularly More ❯

Agile project experience with CI/CD exposure Excellent communication and problem-solving skills Ability to thrive in high-pressure environments Bonus Points: Deep understanding of Murex DB schemas & performance tuning Business process modelling and continuous improvement experience If you're passionate about delivering high-performance financial solutions and want to work with leading global trading desks More ❯

efficient and convenient. Are you adaptable, flexible and pragmatic with a DevOps mindset? Are you able to apply good engineering processes to deliver software products of high quality and performance, even with occasionally ambiguous requirements? The ideal candidate will be a lifelong learner who enjoys solving technical problems, is curious about new technologies, and loves sharing knowledge and experience … and emerging technologies to assist in the future roadmap of our products. As a team, we are responsible for the health of the systems we build. You should understand performance tuning and optimisation, and how to diagnose technical issues across local, pre-release and production environments running on AWS. We operate a DevOps culture and are responsible for … languages in particular Golang Proving technical leadership and direction to your team and contributing to the wider engineering organisation. Deep technical understanding of MySQL and relational databases, particularly database performance tuning. Knowledge of best practises around Modern Software Engineering, CI/CD, DORA metrics. Experience of troubleshooting and fixing performance issues in a full-stack application; from browser More ❯

needs into effective technical prototypes and solutions Collaborate with stakeholders, data teams, and service partners Ensure data security, governance, and regulatory compliance Monitor and optimise cloud resource usage and performance Automate data lifecycle tasks to improve speed, consistency, and reliability Support analytics teams with clean, modelled data for self-service tools Mentor peers, share documentation, and support technical best … Azure : Data Factory, Synapse, Monitor, ARM GCP : BigQuery, Dataflow, Cloud Composer, Pub/Sub Strong knowledge of data warehousing, storage, and modelling Experience with ETL/ELT processes and performance tuning Hands-on scripting (Python, PowerShell) for automation Familiarity with CI/CD tools (Azure DevOps, GitHub Actions) Infrastructure as Code: Terraform, ARM templates Working knowledge of data More ❯

needs into effective technical prototypes and solutions Collaborate with stakeholders, data teams, and service partners Ensure data security, governance, and regulatory compliance Monitor and optimise cloud resource usage and performance Automate data lifecycle tasks to improve speed, consistency, and reliability Support analytics teams with clean, modelled data for self-service tools Mentor peers, share documentation, and support technical best … Azure : Data Factory, Synapse, Monitor, ARM GCP : BigQuery, Dataflow, Cloud Composer, Pub/Sub Strong knowledge of data warehousing, storage, and modelling Experience with ETL/ELT processes and performance tuning Hands-on scripting (Python, PowerShell) for automation Familiarity with CI/CD tools (Azure DevOps, GitHub Actions) Infrastructure as Code: Terraform, ARM templates Working knowledge of data More ❯

Spring Boot, and MuleSoft or equivalent integration tools. Develop and manage microservices and APIs, handling high data volume using Kafka. Work with containerized environments like OpenShift or Kubernetes. Tune performance, monitor systems using Splunk, Dynatrace, or AppDynamics. Automate deployments and drive CI/CD processes. Collaborate with cross-functional teams, mentor developers, and solve complex technical challenges. Required Key … ESB, and Web Services. Strong SQL and PL/SQL (Oracle) knowledge. Hands-on experience with OpenShift/Kubernetes, WebLogic, JBoss, or Tomcat. Proven experience in monitoring, logging, and performance tuning tools. Solid understanding of TDD, unit testing frameworks like JUnit, and scripting with Cucumber/Litmus. Excellent communication and analytical skills. About Us: Ascendion is a global More ❯

and technology. A typical day in this role involves collaborating with technology leaders, contributing to the enhancement of day-to-day operations, and ensuring improvements in availability, reliability, latency, performance, and efficiency of the ESC. You will be required to occasionally participate in "on-call" rotations to resolve incidents occurring out-of-hours. The overarching goal is to deliver … cloud providers. A typical day in this role involves collaborating with technology leaders, contributing to the enhancement of day-to-day operations, and ensuring improvements in availability, reliability, latency, performance, and efficiency of the ESC. You will be required to occasionally participate in "on-call" rotations to resolve incidents occurring out-of-hours. Eligibility requirement Fluency in written and … our Conversations on Race and Ethnicity (CORE) and AmazeCon (gender diversity) conferences, inspire us to never stop embracing our uniqueness. Mentorship and Career Growth We're continuously raising our performance bar as we strive to become Earth's Best Employer. That's why you'll find endless knowledge-sharing, mentorship and other career-advancing resources here to help you More ❯

software, platforms, and infrastructure. The Role Join us as a DevSecOps and help us build the future of data sovereignty! We're seeking an DevSecOps passionate about creating high-performance, secure, scalable, and reliable services for our production infrastructure and security. You'll have a direct impact, improving existing systems and developing innovative solutions to complex challenges. Our small … response to critical issues and minimize service disruptions. • Scale the Acra platform and applications to support large concurrent user bases (25+ users) and sustained daily usage. This will involve performance tuning, capacity planning, and optimization of resource utilization. • Collaborate closely with the product engineering team to influence the design and implementation of new products and features, ensuring they More ❯

clearing systems. The role is responsible for Database management of the Clearing applications utilising Oracle, PostGres and/or MS-SQL DB technologies including performing administration, configuration, installation, maintenance, tuning, and support of the database environments. This position will be within a team of existing DBAs that cover Oracle, Postgres and SQLServer Your working environment At ABN AMRO we … upgrade experience Experience with installing/configuring/maintaining a global monitoring solution is valued Postgres Partitioning, Foreign data Wrappers knowledge and experience would be an advantage Strong Postgresql performance tuning and troubleshooting experience. Strong backup and recovery techniques using logical, physical backups. (pgbackrest/commvault pref) Valued Linux/Network skills Understanding of cluster file systems and More ❯

clearing systems. The role is responsible for Database management of the Clearing applications utilising Oracle, PostGres and/or MS-SQL DB technologies including performing administration, configuration, installation, maintenance, tuning, and support of the database environments. This position will be within a team of existing DBAs that cover Oracle, Postgres and SQLServer Your working environment At ABN AMRO we … upgrade experience Experience with installing/configuring/maintaining a global monitoring solution is valued Postgres Partitioning, Foreign data Wrappers knowledge and experience would be an advantage Strong Postgresql performance tuning and troubleshooting experience. Strong backup and recovery techniques using logical, physical backups. (pgbackrest/commvault pref) Valued Linux/Network skills Understanding of cluster file systems and More ❯

the department. Required Qualifications Bachelor's degree with at least 5 years of experience, or equivalent. In-depth knowledge and expertise in data engineering, including: Snowflake (data warehousing and performance tuning) Informatica (ETL/ELT development and orchestration) - nice to have Python (data processing and scripting) - required AWS (data services such as S3, Glue, Redshift, Lambda) - required Cloud More ❯

in JavaScript, HTML, CSS, or web development for building or customising visualisations (nice to have, but not essential) Strong understanding of data design principles, UI/UX, and dashboard performance tuning Experience supporting projects in the A.E.C. sector (or a strong interest in this space) Excellent communication skills, with confidence to engage clients and present solutions Relevant degree More ❯

in JavaScript, HTML, CSS, or web development for building or customising visualisations (nice to have, but not essential) Strong understanding of data design principles, UI/UX, and dashboard performance tuning Experience supporting projects in the A.E.C. sector (or a strong interest in this space) Excellent communication skills, with confidence to engage clients and present solutions Relevant degree More ❯

Work independently and own feature development from concept to delivery. • Collaborate with the engineering team and contribute to the overall design of the system. • Develop automated tests and conduct performance tuning • Contribute to code reviews Key qualifications • Bachelor's degree in a technical field, computer science, software engineering or similar. • 10+ years’ experience in software development, spanning backend More ❯

Work independently and own feature development from concept to delivery. • Collaborate with the engineering team and contribute to the overall design of the system. • Develop automated tests and conduct performance tuning • Contribute to code reviews Key qualifications • Bachelor's degree in a technical field, computer science, software engineering or similar. • 10+ years’ experience in software development, spanning backend More ❯

seek a senior systems engineer with extensive Linux experience to join the Quant Systems team. This is a hands-on technical role within an engineering team responsible for high-performance trading and research infrastructure. It offers the opportunity to be part of an inclusive, collaborative, and engaging working environment. WHAT YOU'LL DO DAY-TO-DAY You'll be … part of a global team that designs and maintains the firm's largest compute infrastructure, which includes operating system platforms, software development tooling, high-performance computing, networking, and storage for research and trading. You'll have the opportunity to work on a wide variety of technology initiatives in a distributed computing environment with a primary focus on Linux-based … This includes, but is not limited to, workload scheduling design and implementation, fleet management, clustered file system design and operation, software design and life cycle (SDLC), kernel and network performance tuning for low-latency and high-throughput applications, and metrics collection and data mining analysis. WHO WE'RE LOOKING FOR • A degree in computer science (or another technical More ❯

Able to troubleshoot at all levels, from network to operating systems to software applications - Experience supporting cloud systems or other services. Proficient troubleshooting and anticipating problems that affect the performance, reliability, or availability of software systems PREFERRED QUALIFICATIONS - Excellent communication and problem-solving skills across languages - Experience operating 24x7 high-availability, distributed software applications and performance tuning More ❯

with automated testing, security scanning, and progressive roll-outs. Implement end-to-end observability -metrics, traces, logs, and alerts-so engineers and customers alike can trust the health and performance of our agentic workers. Champion platform security : secrets management, zero-trust networking, least-privilege IAM, image provenance, and compliance-ready audit trails. Collaborate closely with AI & product engineers , shaping … runtime environments, data pipelines, and workflow orchestration for large-scale model serving. Continuously improve reliability and cost efficiency through chaos testing, capacity planning, performance tuning, and proactive incident response. Requirements You May Be a Good Fit if You Have : Core technical expertise in the following domains: Cloud Infrastructure Mastery (AWS, Azure): deep understanding of IAM, networking, storage, and … level logging (SIEM-friendly formats). Backend Engineering Strengths in the following areas : Strong Language Proficiency : advanced in Python, Go, or Java with clean code principles, test coverage, and performance awareness. Service Architecture : experience building and operating high-availability, distributed systems (microservices and event-driven). API Design : REST and gRPC, with versioning, throttling, auth, and schema validation (OpenAPI More ❯