101 to 125 of 336 Performance Tuning Jobs in London

partnering with clients on their most critical strategic transformations. We are Wavestone. Energetic, solution-driven experts who focus as much on people as on performance and growth. Hand in hand, we share a deep desire to make a positive impact. We are an ambitious firm with a worldwide reach … cloud data ecosystems: Azure (Data Factory, Synapse, Fabric, ADLS, Databricks)AWS (Glue, Redshift, EMR)GCP (BigQuery, Dataflow)Databricks (Spark/PySpark)Snowflake (SQL, Snowpark, performance tuning)Desirable ExperienceStrong SQL and/or Python capability, and familiarity with tools such as dbt, Git, CI/CD, or MLOps frameworks. ...

environments. Essential Criteria 8-10+ years of dedicated experience delivering complex enterprise data migration and data engineering projects. Mastery of SQL (complex joins, performance tuning, advanced analytical queries, and reconciliation). Strong Azure Cloud Stack Experience: Azure Data Factory (ADF) Azure SQL DB Azure Data Lake/ ...

environments. Essential Criteria 8-10+ years of dedicated experience delivering complex enterprise data migration and data engineering projects. Mastery of SQL (complex joins, performance tuning, advanced analytical queries, and reconciliation). Strong Azure Cloud Stack Experience: Azure Data Factory (ADF) Azure SQL DB Azure Data Lake/ ...

Strong proficiency in Python, Go, and/or Bash; ability to write maintainable, production-quality code. GNU/Linux: Deep system-level understanding, including performance tuning and hardening. Windows Server: Proficiency in Windows Server 2016+ including ADFS, ADCS, and ADDS. Networking: Strong understanding of IP networking, physical network ...

governance. Strong domain understanding of Capital Markets data and reporting expectations (front-to-back awareness is a plus). Proficiency in SQL (advanced querying, performance tuning, reconciliation logic). Strong proficiency in Python for data analysis and automation (pandas, validation frameworks, scripting). Experience supporting or validating ...

recovery and performanceContributing to the design and implementation of automation for database provisioning, upgrades, replication and monitoring using Python, Ansible and TerraformDriving improvements in performance tuning, query optimisation, indexing strategies and storage designCollaborating with application and research teams to design and deliver database solutions that meet demanding scalability ...

across multiple sectors (e.g., banking, insurance, telecom, public sector, manufacturing, retail).Technical ExpertiseExtensive experience with Snowflake features (e.g., data sharing, Snowpark, zero-copy cloning, performance tuning).Proficiency in cloud ecosystems (AWS, Azure, GCP) and infrastructure-as-code (e.g., Terraform).Strong background in databases, data warehouses, and distributed processing ...

QUANT SYSTEMS DEVELOPER – High Performance Trading InfrastructureLondon – Hybrid100,000-150,000 + bonusQuant Capital is recruiting on behalf of a leading global quant investment firm seeking a Systems Developer to join its high-impact technology group in London. This role is part of a core engineering team focused … building and maintaining the backbone infrastructure supporting high-performance trading and large-scale research. In this hands-on role, you will gain significant exposure to distributed systems, high-throughput computing, and low-latency infrastructure. You'll work on complex technical challenges that directly influence the firm's ability ...

future of finance with Citi Tech. Job Responsibilities/Role: Design and develop reusable algo trading platform components, with a strong focus on high performance and low latency. Collaborate directly with Traders, Quants, and Product Managers to understand business requirements and implement functional enhancements to the algo trading platform. … Ensure the strong reliability, scalability, and performance of core algorithmic components. Work seamlessly with wider eTrading Teams and Production Support to maintain and enhance live trading systems. Adhere to stringent engineering standards, continuously striving for best-in-class solutions and practices. Qualifications: Significant extensive hands‐on coding experience ...

availability solutions , with deep ownership of Windows clustering (failover/HA patterns, maintenance, upgrades, troubleshooting) Lead Linux automation and platform standardization (configuration, patching, hardening, performance tuning) Own Infrastructure as Code strategy with Terraform (modules, environments, state, governance) Own automation strategy with Ansible (reusable roles, inventories, secure secrets handling … level experience designing and operating Windows Server HA and clustering (Failover Clustering and related components) Strong Linux administration and automation experience (systemd, networking, storage, performance) Advanced skills with Terraform and Ansible (architecture, reusable components, secure operations) Strong deployment/release engineering experience with Octopus Deploy and GitHub (release governance ...

goals and enhancing our leading position. Job Responsibilities/Role: Design and develop reusable algo trading platform components, with a strong focus on high performance and low latency. Collaborate directly with Traders, Quants, and Product Managers to understand business requirements and implement functional enhancements to the algo trading platform. … Ensure the strong reliability, scalability, and performance of core algorithmic components. Work seamlessly with wider eTrading Teams and Production Support to maintain and enhance live trading systems. Adhere to stringent engineering standards, continuously striving for best-in-class solutions and practices. Qualifications: Significant extensive hands-on coding experience ...

Project descriptionWe are seeking an experienced Senior KDB+ Developer to design, develop and optimize high performance data platforms built on kdb+. The ideal candidate will have deep expertise in kdb+ tick architecture, performance tuning at scale and close collaboration with business stakeholder - particularly within Risk functions … deliver robust, efficient and maintainable solutions. ResponsibilitiesDesign, develop and maintain kdb+ tick systems with strong understanding of data organization, schema design and the performance implications of different architectural approaches. Build and operate solutions handling large scale, high frequency datasets, ensuring low latency, high throughput and efficient memory usage. Analyze ...

databases, cloud infrastructure (AWS), system troubleshooting, and production support. You will work closely with customers, internal engineering teams, and operations to ensure system stability, performance, and reliability. Key ResponsibilitiesProvide production and application support for live systemsManage and maintain Microsoft SQL Server databasesTroubleshoot performance issues, database errors, and system … Science or related field5+ years of experience in Production Support, Application Support, DBA, or Engineering SupportStrong hands-on experience with: Microsoft SQL Server & SQLDatabase performance tuning and troubleshootingWindows and/or Linux environmentsExperience with: Patching, upgrades, and migrationsCloud platforms, preferably AWSStrong problem-solving and communication skillsNice to HaveExperience ...

Location: London (Hybrid – 3 days in office) Type: Full‐time Are you ready to step into a high-performance environment at the heart of global markets? We're looking for a motivated and technically skilled eTrading Production Support Engineer to join our fast‐paced Application Support team based … Tokyo, and Singapore. What You’ll Do: Oversee the day‐to‐day production support for critical FX applications Monitor system health, perform capacity and performance management, and resolve incidents efficiently Lead change management activities, including planning, scheduling, and implementing upgrades Collaborate with developers, business analysts, and infrastructure teams ...

both. A genuine DevOps mindset: comfortable owning build pipelines, container images, releases, and the operational side of a product. Experience designing software for performance, scalability, and predictable cost on cloud infrastructure. Bonus PointsHands-on experience with Snowflake, especially Native Apps, Snowpark Container Services, or building stored procedures and UDFs … etc.).Understanding of graph theory and graph algorithms (centrality, community detection, pathfinding, embeddings), or strong curiosity to learn them. Background in distributed systems, JVM performance tuning, or columnar/analytical query engines. Experience working in a distributed, remote-first team and shipping to enterprise customers.#Li-HybridWhy Join Neo4j ...

analytics and reporting Collaborate with cross-functional teams to understand data requirements and deliver robust solutions Monitor, troubleshoot, and enhance data workflows for performance and reliabilityMaintain technical documentation and contribute to data engineering best practices Required Skills & Qualifications: Strong experience with Databricks- DLT, Delta Lake concepts, UC governance Solid …/ELT processes, and data architecture Experience in MS Copilot, AI Foundry , Databricks (MosiacAI, MLflow, Agentbricks, Genie) Strong analytical background with problem-solving skills Performance tuning concepts like watermarking, late data handling, parallelism & checkpointing Hands-on expertise in ADF, and Qlik Replicate for data ingestion and replication Experience ...

incident management, security remediation, CI/CD and automation. The Opportunity As TechOps Engineer, you’ll be responsible for the reliability, security and performance of complex UAT and production environments hosted on Azure. You’ll act as a senior escalation point for L2 and L3 incidents, diagnosing issues across … resilient and scalable production platforms by: • Building and supporting UAT and production environments within Microsoft Azure. • Performing hands-on RHEL administration, including hardening, patching, performance tuning and troubleshooting. • Acting as an escalation point for L2 and L3 incidents. • Leading root-cause analysis and implementing permanent fixes for recurring ...

product objectives into sound technical designs and testable acceptance criteria; decompose epics into implementable storiesDesign and implement complex features; complete complex bug fixes and performance improvementsDefine and uphold Definition of Ready/Done including code quality, automated test coverage, security checks, and observabilityEstablish/maintain CI/CD pipelines … Java/JVM, JavaScript/TypeScript, .NET/C#, Python, C/C++, SQL, Linux, or WindowsExperience with relational and non-relational data stores, performance tuning, and data modellingKnowledge of CI/CD platforms, containers, cloud technologies, observability, and monitoring practicesUnderstanding of secure coding, performance optimisation, reliability ...

Terraform Your Profile Essential skills/knowledge/experience: Experience with AWS data stack (S3, EMR, EC2, etc.) PySpark & Snowflake & CI/CD & DevOps Performance optimisation and large-scale data processing Data modelling (RDV/BDV or similar patterns preferred) Query performance tuning DBT (or equivalent ...

data management systems. Ensure systems meet business requirements and industry practices. Design, implement, automate and maintain large scale enterprise data ETL processes. Build high-performance algorithms, prototypes, predictive models and proof of concepts. Build, test and maintain batch ETL pipelines for assigned datasets, following existing teampatterns and standards. Implement … Bachelor's degree in computer science, engineering, or a related technical field, or equivalentpractical experience. 5+ years building production data pipelines. Strong SQL, including performance tuning on large tables. Python for data transformation and pipeline orchestration. Experience with a distributed query engine (Presto, Spark, Hive or similar ...

objectives into sound technical designs and testable acceptance criteria; decompose epics into implementable stories* Design and implement complex features; complete complex bug fixes and performance improvements* Define and uphold Definition of Ready/Done including code quality, automated test coverage, security checks, and observability* Establish/maintain CI/…/JVM, JavaScript/TypeScript, .NET/C#, Python, C/C++, SQL, Linux, or Windows* Experience with relational and non-relational data stores, performance tuning, and data modelling* Knowledge of CI/CD platforms, containers, cloud technologies, observability, and monitoring practices* Understanding of secure coding, performance ...

objectives into sound technical designs and testable acceptance criteria; decompose epics into implementable stories Design and implement complex features; complete complex bug fixes and performance improvements Define and uphold Definition of Ready/Done including code quality, automated test coverage, security checks, and observability Establish/maintain CI/…/JVM, JavaScript/TypeScript, .NET/C#, Python, C/C++, SQL, Linux, or Windows Experience with relational and non‐relational data stores, performance tuning, and data modelling Knowledge of CI/CD platforms, containers, cloud technologies, observability, and monitoring practices Understanding of secure coding, performance ...

Software Developer – High Performance Trading SystemsLocation: London (On-site)400k+ total compWe are looking for a talented software engineer to join a high-performing team responsible for architecting and delivering the systems that underpin a leading and disruptive global trading operation. You'll work on the full lifecycle … high-throughput, low-latency platforms – including algorithmic trading engines, venue connectivity, and real-time pricing infrastructure. Expect deep technical ownership, constant performance tuning, and direct impact on production trading. What you'll work on: Design and optimise mission-critical systems where microseconds and gigabits matterBuild core infrastructure ...

pair programming, and test-driven development. Drives Continuous Delivery and Automation efforts across supported applications by means of Root Cause Analysis reviews, knowledge management, performance tuning, and user training. Operates and evolves CI/CD pipelines, Infrastructure-as-Code tooling, and GitOps workflows to support rapid, safe delivery … which is annually reviewed), and enjoy a whole host of additional benefits such as:27 days annual leave (plus bank holidays)A discretional annual performance related bonusPrivate Medical Care & Life InsuranceEmployee Assistance ProgramPension PlanPaid Parental LeaveSpecial discounts for employees, family, and friendsAccess to an array of learning and development ...

solutions within a complex enterprise environment. Essential Skills Strong Oracle PL/SQL development experience. IBM DataStage ETL development expertise. Advanced SQL development and performance tuning skills. Data warehousing and data integration experience. Experience working with large datasets in enterprise environments. Strong analytical and problem-solving skills. Desirable ...