76 to 100 of 336 Performance Tuning Jobs in London

Senior KDB+ Developer

Location
Greater London, England, United Kingdom
Project description We 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. Responsibilities Design, 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. ...

DevOps Engineer, Blockchain Infra (Fully Remote)

Hiring Organisation
Binance
Location
London, United Kingdom
Salary
£ 70 K
networking, and secrets management.Experience with service mesh technologies such as Istio or Linkerd.Familiarity with message queues, distributed caching, and high-throughput systems.Experience with performance tuning and capacity planning for large-scale distributed systems.Nice to HaveExperience in cryptocurrency exchanges or blockchain infrastructure providers.Experience operating multi-region, multi-cloud production … environments.Knowledge of RPC infrastructure, distributed databases, or high-performance networking.Familiarity with security and compliance best practices (IAM, WAF, Vault, KMS, etc.).Experience contributing to open-source projectsWhy Binance• Shape the future with the world’s leading blockchain ecosystem• Collaborate with world-class talent in a user-centric global organization ...

ETL Developer

Location
London, United Kingdom
Derivatives (ETD) including futures and options and Cleared OTC products (interest rate swaps, credit default swaps, repos). You will design and build high-performance data pipelines that ensure complete accuracy, regulatory compliance and minimal disruption to daily clearing operations. What you'll do: Legacy System Decoding: Analyze … Cross-functional Collaboration : Work closely with Business Analysts, Risk, Product Control, and Operations teams to translate functional specifications into clean, production-grade ETL code Performance Tuning : Optimize massive batch and real-time streaming data loads (using Autosys, Control-M, or Kafka) to comfortably fit within tight overnight batch ...

Senior Site Reliability Engineer

Location
Greater London, England, United Kingdom
systems to manage platform infrastructure and applications Improve reliability, quality, and time-to-market of our suite of software solutions Measure and optimize system performance, with an eye toward pushing our capabilities forward, getting ahead of customer needs, and innovating to continually improve Provide primary operational support and engineering … multiple large distributed software applications How will you make an impact? Gather and analyze metrics from both operating systems and applications to assist in performance tuning and fault finding Partner with development teams to improve services through rigorous testing and release procedures Participate in system design consulting, platform ...

Senior Software Engineer (Java)

Hiring Organisation
Liquidnet
Location
London, UK
Employment Type
Full-time
optimising mission‐critical trading services across multiple asset classes. Role Responsibilities Design and implement distributed, fault‐tolerant Java services for electronic trading environments Lead performance tuning, optimisation, and refactoring of low‐latency trading components Investigate and resolve production issues, ensuring system stability and high availability Collaborate with global … DevOps, and Product Mentor and guide engineers to improve technical capability and engineering standards Experience/Competences Essential Strong experience designing and building high‐performance, low‐latency Java services within electronic trading Strong experience with distributed messaging technologies (Solace/Kafka) and real‐time systems Strong experience designing ...

Principal AI Data Engineer

Hiring Organisation
EPAM Systems
Location
London, UK
Employment Type
Full-time
GenAI solutions that deliver real business impact. You will work across architecture, engineering and research to build data and AI-enabled platforms, ensuring performance and scalable solutions that accelerate digital transformation for enterprise environments. Develop and evaluate AI/GenAI/AgenticAI prototypes using tools such as Copilot Studio … linting and GitHub workflowsWrite modular reusable Python code using OOP design patterns and frameworks such as Pydantic and PyTorchEmphasize reproducibility, open-source practices and performance tuning in end-to-end deliveryOperate within agile teams, contributing to sprint planning and collaborative reviewsBuild scalable AI workflows and architectures using tools ...

Senior Technology Architect Snowflake

Hiring Organisation
Infosys Technologies
Location
London, United Kingdom
Salary
£ 70 K
architecture reviews, technology evaluations, and platform transformation initiatives.Establish governance, security, resilience, scalability, and cost-optimization frameworks.Lead Snowflake architecture covering security, governance, RBAC, data sharing, performance optimization, and multi-environment strategy.Define enterprise data platform standards and operational best practices.Guide warehouse sizing, workload management, performance tuning, and cost optimization.Design ...

Senior Database Administrator - AWS, Aurora, RDS

Location
Greater London, England, United Kingdom
resilience, and recovery of critical database platforms. The successful candidate will be a hands-on technical expert, actively involved in architecture decisions, database design, performance tuning, data reconciliation, and operational support. Key Requirements: Active SC Clearance held by a Government agency used within the last 6 months. Lead … PostgreSQL. Design scalable, resilient and highly available database platforms, including schema design, data modelling, indexing, replication and disaster recovery strategies. Drive database performance optimisation through SQL development, query tuning, execution plan analysis and configuration improvements. Manage database operations including upgrades, patching, security, monitoring, capacity planning, backup and recovery ...

Senior BI Developer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£450.00 - £500.00 per day
optimise Microsoft Fabric solutions Build, test and maintain ETL pipelines using SQL and SSIS Develop and optimise SSAS Cubes and Tabular Models Support BI performance tuning and optimisation Contribute to CI/CD and deployment processes Maintain technical documentation within Azure DevOps SKILLS & EXPERIENCE Essential Strong Power ...

Senior Technology Architect Snowflake

Hiring Organisation
Infosys Technologies
Location
London, UK
Employment Type
Full-time
technology evaluations, and platform transformation initiatives. Establish governance, security, resilience, scalability, and cost-optimization frameworks. Lead Snowflake architecture covering security, governance, RBAC, data sharing, performance optimization, and multi-environment strategy. Define enterprise data platform standards and operational best practices. Guide warehouse sizing, workload management, performance tuning ...

Senior Oracle Infrastructure Engineer

Location
Greater London, England, United Kingdom
party solutions on occasionWorking with complex and fully integrated business products such as Oracle e-Business Suite or Oracle SaaS solutionsManage database solutions, including performance tuning, high availability, disaster recovery (the traditional DBA role) both in the Cloud (including OCI, AWS, Azure, GCP) and on-premisesYou will support ...

Lead Engineer

Location
Greater London, England, United Kingdom
CSPM, ITSM, DevOps tooling (CI/CD), and secrets management.* Be responsible for the operational model: backup/recovery, DR, platform upgrades, policy hardening, performance tuning, and continuous improvement.* Drive onboarding at scale ensuring standardized onboarding patterns and controls.* Establish guardrails and RBAC/ABAC models aligned ...

Database Platform Engineer

Location
Greater London, England, United Kingdom
across on‐premises and AWS environments Supporting large-scale deployments of PostgreSQL, Microsoft SQL Server, MySQL and CockroachDB, ensuring high availability, disaster recovery and performance Contributing to the design and implementation of automation for database provisioning, upgrades, replication and monitoring using Python, Ansible and Terraform Driving improvements in performance tuning, query optimisation, indexing strategies and storage design Collaborating with application and research teams to design and deliver database solutions that meet demanding scalability and latency requirements Participating in the out-of-hours rota to provide support for critical systems Staying up to date with industry trends ...

Senior Database Administrator London ·

Location
Greater London, England, United Kingdom
hands‐on technical role covering day‐to‐day administration, reliability, design and support across a varied stack that includes MySQL, Redis, QuestDB (a high‐performance time‐series database used for market data and operational metrics), Dolt (a version‐controlled, Git‐for‐data SQL database), and Elasticsearch. The successful candidate … operate our exchange technology products. Responsibilities and Duties Primary resource responsible to administer, monitor, and maintain the Aquis database estate, ensuring high availability, performance, and reliability. Plan and execute database upgrades, patch management, and version migrations with minimal disruption to production systems. Design, implement, and routinely test backup ...

Devops SRE

Location
Greater London, England, United Kingdom
maintain, and enhance CI/CD pipelines enabling automated testing, seamless deployments, and continuous integration. Diagnose and resolve complex system‐level issues related to performance, scalability, networking, and automation. Collaborate with cross‐functional teams to deliver cloud‐native solutions aligned with engineering best practices and business goals. Required Skills … Kubernetes services such as CoreDNS , cert‐manager , Dynatrace , Cloudability , and Infoblox . Familiarity with OPA Gatekeeper for policy enforcement and tenant isolation. Security, Observability & Performance Strong security mindset with a proven track record of designing secure, resilient cloud‐native systems. Experience implementing observability stacks including Prometheus , Dynatrace , and OpenTelemetry ...

Senior Low Latency Rust Engineer

Hiring Organisation
McGregor Boyall Associates Limited
Location
Central London, London, United Kingdom
Employment Type
Permanent
week in office We are assisting with the hire of an experienced low-latency engineer to join a specialist team building frameworks, libraries and performance tooling used across a large global electronic trading environment. This is not a traditional BAU development role attached to one desk or application. … team works across multiple trading platforms, solving complex performance problems and helping define how latency-sensitive systems should be engineered. Approximately 90% of the role is hands-on coding , with a major focus on Rust alongside modern Java. What youll work on Low-latency Rust and Java frameworks Event ...

Lead Data & AI Engineer

Hiring Organisation
EPAM Systems
Location
London, UK
Employment Type
Full-time
feature engineering for analytics and intelligent applications. The role requires hands-on technical expertise in data engineering and AI integration while driving reliability, performance and security for enterprise-scale systems. Design and implement robust data architectures using cloud-native technologiesBuild large-scale ETL/ELT workflows to process heterogeneous … enterprise MLOps frameworksIntegrate GenAI-assisted development methods into data workflows for automation and efficiencyEnsure data governance, lineage, cataloging and quality frameworks across platformsOptimize platform performance, manage compute cost efficiency and enable observability for critical workloadsContribute to best practices, mentoring engineering teams in advanced data and AI engineeringMinimum 8+ years ...

Azure Databricks Data Engineer

Location
City Of London, England, United Kingdom
data delivery across multiple business functions. Develop and support Lakeflow pipelines, Delta Lake implementations, and modern data engineering frameworks. Drive best practices across performance optimisation, security, governance, monitoring, and platform reliability. Collaborate with business, data, and technology teams to deliver high-quality data products that support organisational growth … Factory, ADLS, Key Vault, and other Azure services. Hands-on experience with Git, CI/CD pipelines, deployment automation, and production support. Strong troubleshooting, performance tuning, and optimisation experience across Databricks and SQL environments. Excellent stakeholder engagement and communication skills, with the ability to operate effectively across both ...

Senior Data Analyst

Location
Greater London, England, United Kingdom
stack(Data Factory, Synapse/Fabric, SQL-based semantic layers). Advanced Power BI: data modelling (star schemas), advanced DAX, Power Query/M,performance tuning, RLS and deployment via pipelines. Astrong understanding of Power BI engineering discipline: PBIP/TMDLsource format, Git-based version control, pull-request … andstructured release processes, with demonstrable experience in a teamsetting. Provenability to carry out peer review and QA of analytics work, spotting modelerrors, DAX issues, performance problems and UX weaknesses. Excellentwritten and verbal communication skills, including presenting to underwriters and senior stakeholders, with a track record of turningambiguous business problems ...

Associate Technical Architect - Data

Location
Greater London, England, United Kingdom
Kinesis (Data Streams and Firehose). Orchestrating pipelines using AWS Step Functions/Amazon MWAA/similar services. Designing and optimizing schemas and query performance on Amazon Redshift, including Spectrum and Serverless features. Querying large datasets interactively using Amazon Athena. Managing operational databases using Amazon RDS across engines such … SQS. Strong programming capability in Python and PySpark for large-scale data processing. Proficiency in writing complex SQL queries, analytical functions, and performance tuning for large datasets. Familiarity with NoSQL databases such as Amazon DynamoDB, MongoDB, or DocumentDB. Strong understanding of partitioning, indexing, scaling approaches, and query optimization ...

Senior Software Engineer (Java)

Location
City Of London, England, United Kingdom
optimising mission‐critical trading services across multiple asset classes. Role Responsibilities Design and implement distributed, fault‐tolerant Java services for electronic trading environments Lead performance tuning, optimisation, and refactoring of low‐latency trading components Investigate and resolve production issues, ensuring system stability and high availability Collaborate with global … Architecture, DevOps, and Product Mentor and guide engineers to improve technical capability and engineering standards Experience/Competences Strong experience designing and building high‐performance, low‐latency Java services within electronic trading Strong experience with distributed messaging technologies (Solace/Kafka) and real‐time systems Strong experience designing ...

Cloud Platform Engineer

Location
Greater London, England, United Kingdom
reusable modules, CI/CD pipelines and policy-as-code guardrails. Leverage AI agents extensively to automate and optimise platform work - provisioning, cost and performance optimisation, incident response, remediation and documentation. Prepare the infrastructure for AI agents as first-class "engineers": safe machine identities, scoped permissions, sandboxes, approval workflows … Partner with data engineering to design and optimise data pipelines, data stores and large-scale analytics infrastructure such as BigQuery, including query, cost and performance tuning. Mentor engineers, set technical direction and champion strong platform and security engineering standards across the organisation. What you'll need to succeed: Essential ...

Oracle Data Engineer (SC Cleared)

Hiring Organisation
Sanderson Government and Defence
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£560 - £570 per day
data-focused role Expertise in Oracle Database technologies, including PL/SQL Experience designing and developing ETL/ELT processes Strong SQL development and performance tuning skills Experience working with large-scale and complex data environments Ability to work effectively with technical and business stakeholders Desirable Experience: Government … optimise ETL/ELT pipelines and integration processes Support data migration, transformation and validation activities Ensure high levels of data quality, integrity and performance Collaborate with architects, analysts and delivery teams to implement data requirements Troubleshoot and resolve complex data and database issues Contribute to best practices, standards ...

Senior Software Engineer

Hiring Organisation
AECOM
Location
London, UK
Employment Type
Full-time
decisions and the outcomes delivered. Strong system design and engineering judgement, with experience making practical trade-offs around architecture, data models, reliability, scalability or performance, and diagnosing difficult production problems. Strong communication and collaboration skills, with the ability to turn loosely defined problems into practical solutions and drive delivery … such as GitHub Actions. Depth in distributed or event-driven systems, asynchronous processing, or data-intensive and high-throughput applications. Experience with observability and performance tuning, including tools such as Prometheus, Grafana, ELK or Datadog, or optimising CPU-, GPU- or distributed ML workloads. Experience in startups, scaleups ...

Principal Software Engineer - Squad Lead Engineer

Location
City Of London, England, United Kingdom
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 ...