1 to 25 of 69 Permanent Performance Tuning Jobs in London

Senior Data Engineer

Hiring Organisation
Eden James Consulting Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
Data Factory and Databricks, replacing legacy SSIS pipelines. Identifying opportunities to harden and automate manual steps within the Finance Close workflow Conduct T-SQL performance tuning across on-prem and cloud environments.Conduct T-SQL performance tuning across on-prem and cloud environments. Collaborate with ...

Senior Java Developer (Low-Latency Payments Systems)

Hiring Organisation
RE Partners
Location
City of London, London, United Kingdom
based in the UK or US and offers the opportunity to build scalable, real-time services using modern technologies. If you’re passionate about performance, have strong Core Java and SpringBoot expertise, and thrive in a collaborative yet opinionated engineering culture, we want to hear from you. Key Responsibilities … DevOps, Product, and QA teams to ensure production-grade solutions. Participate in architectural discussions, advocate for best practices, and provide mentorship to peers. Drive performance tuning, fault tolerance, and observability improvements across services. Required Skills & Experience: 5+ years of experience in Core Java development with a focus ...

Data Engineer

Hiring Organisation
JSS
Location
London Area, United Kingdom
between core systems and the Enterprise Data Warehouse, ensuring accurate and timely reporting Manage and monitor ETL pipelines, identifying and resolving data issues and performance bottlenecks Act as a technical point of contact during financial close periods (monthly, quarterly, year-end) Perform root cause analysis on data issues … cloud-based “Single Source of Truth” data platform Design, develop and maintain ETL workflows using modern tools (e.g. Azure Data Factory, Databricks) Optimise database performance through query tuning, indexing and partitioning strategies Support CI/CD practices using Azure DevOps Produce and maintain technical documentation Provide ...

Java Developer - Payments

Hiring Organisation
Crisil
Location
City of London, London, United Kingdom
exposure to the Payments domain to design, build, and enhance applications supporting global payment processing and modernization programs. The role involves developing scalable, high-performance backend components, integration services, and APIs that enable real-time payments, ISO 20022 message transformations, reconciliation, and workflow automation. The ideal candidate will have … internal systems like Core Banking or Treasury. Develop components supporting real-time payments , event-driven processing , and asynchronous messaging (Kafka, JMS) . Ensure code performance, reusability, and compliance with secure coding and resiliency standards. Payments System Modernization Collaborate with architecture and product teams on payments modernization , API enablement ...

Solace Administrator

Hiring Organisation
BGC Group
Location
London Area, United Kingdom
join our Messaging team. You will be responsible for managing and supporting our enterprise messaging infrastructure built on Solace PubSub+, ensuring high availability, optimal performance, and reliability across production and non-production environments. This includes working on incident response, capacity planning, WAN optimization, and system observability using tools like … software brokers across environments (on-prem and cloud). Provide production support for messaging-related incidents, including root cause analysis and resolution. Monitor system performance and health using Prometheus and Grafana ; proactively identify and address anomalies. Configure and optimize Solace across WAN environments , ensuring low-latency, secure, and reliable ...

Senior Data Engineer

Hiring Organisation
Prism Digital
Location
London Area, United Kingdom
consistency across multiple sources Partner with BI teams to support dashboards and reporting tools Contribute to platform architecture decisions Continuously improve reliability, scalability, and performance You will be expected to work from the Central London office three to four days per week to enable close collaboration with technical … warehouse architecture and methodologies Experience working with large-scale enterprise datasets Strong analytical mindset with a focus on data quality Nice to Haves Snowflake performance tuning and cost optimisation Python Databricks End-to-end data platform architecture Enterprise BI platforms CI/CD pipelines Infrastructure-as-Code Employee ...

Senior Developer

Hiring Organisation
Ascend Consulting
Location
North West London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £80,000 per annum
Server and SAP Business One backend tables Database Management : Write optimized SQL queries, stored procedures, and indexing strategies to efficiently handle large datasets Performance Optimization : Monitor and enhance API performance, database query execution, and application scalability Documentation : Maintain clear and detailed documentation for APIs, database structures … Code Quality : Conduct code reviews, debugging, and error handling to maintain system reliability Best Practices : Stay up to date with API design standards, database performance tuning, and cloud integration trends What You’ll Need 5+ years of backend development experience Strong .NET skills for API development and business ...

Market Data Engineer - C# - Hedge Fund - London

Hiring Organisation
Attribution Search
Location
London Area, United Kingdom
Responsibilities: As a member of the team, you will be responsible for designing, building, and maintaining robust market data systems, with a focus on performance, scalability, and reliability. Design, develop, and maintain real-time and historical market data systems using C#/.NET Build and optimise data ingestion, validation … system architecture Collaborate with quants, traders, and other technology teams to support the full data lifecycle Implement monitoring, logging, and alerting to ensure system performance and stability Contribute to performance tuning and optimisation of latency-sensitive systems Requirements: Degree in Computer Science, Mathematics, Engineering, or a related ...

Co-pilot consultant

Hiring Organisation
KPMG UK
Location
City of London, London, United Kingdom
Power BI to augment client decision-making and operational outcomes. Architecture, Governance & Standards Translate business requirements into end-to-end data architecture, balancing performance, cost, security, and maintainability. Apply and advise on security patterns and contribute to governance-by-design. Enforce technical documentation standards, architectural artefacts, and implementation patterns … audiences. Strong relationship-building and stakeholder management in complex client environments. Code Management CI/CD for Fabric items. Git-based workflow. Testing frameworks. Performance tuning patterns. Cost/capacity optimisation. Desirable Skills & Experience Experience across adjacent Microsoft services often paired with Fabric (e.g., Azure Synapse Analytics, Azure ...

Lead Dynamics 365 Developer and Support

Hiring Organisation
Salt Search
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £87,000 per annum
security standards. Support Provide 2nd and 3rd line support across Dynamics CRM applications. Manage incidents, service requests, and changes following ITIL processes. Monitor CRM performance and proactively resolve operational issues Skills & Experience Required Essential Proven technical expertise in Dynamics 365 CE configuration and customisation. Hands-on with Power Platform … stakeholder management, communication, and problem-solving skills. Desirable Exposure to Copilot and AI-driven tools . ITIL certification or experience working in ITIL environments. Performance tuning and data migration expertise. *Rates depend on experience and client requirements ...

Mid-Senior Ruby on Rails Engineer (B2B SaaS | Hybrid | UK)

Hiring Organisation
Transreport
Location
London Area, United Kingdom
trusted backend partner for Product and Platform teams. Within 12 months, you will: Confidently own and evolve multiple backend systems. Improve database performance and background job efficiency. Reduce operational risk across TOC integrations. Strengthen CI/CD reliability and deployment confidence. Contribute to longer-term backend architecture improvements … party integrations, ensuring reliable and secure data exchange. Infrastructure Collaboration: Work with the Platform team on AWS-based deployments and CI/CD processes. Performance & Reliability: Optimise background processing and database performance to maintain system stability. Incident Response: Support investigation and resolution of production issues. Cross-Functional Collaboration ...

DevOps / Cloud Engineer

Hiring Organisation
Lynx Recruitment Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
work with stakeholders Additional Desirable Skills Experience with tools such as Ansible, Maven, or Gradle Knowledge of AWS networking and database services Experience with performance tuning and high-availability systems ...

Java Software Engineer

Hiring Organisation
Gravitas Recruitment Group (Global) Ltd
Location
London Area, United Kingdom
knowledge of CI/CD, Infrastructure as Code, and automated testing (JUnit, Mockito, integration tests). Experience with SQL and relational databases; understanding of performance tuning and transactionality. Production support experience: monitoring, logging, tracing and incident management. Mindset: self-directed, proactive problem-solver who challenges assumptions rather than ...

Java Developer

Hiring Organisation
Gravitas Recruitment Group (Global) Ltd
Location
London Area, United Kingdom
Containerisation (Docker) and orchestration (Kubernetes) Knowledge of CI/CD pipelines, Infrastructure as Code, and automated testing (JUnit, Mockito) Experience with SQL, relational databases, performance tuning, and transactionality Production support experience, including monitoring, logging, tracing, and incident management Experience/exposure with Clearbank integrations, Mambu, Moneyhub ISAs - saving ...

Pricing & Market Data (Migration Specialist)

Hiring Organisation
HCLTech
Location
London Area, United Kingdom
Technology Stack : Deep Mastery: Gresham Asset Control (legacy) and Prime EDM. Architecture : Cloud-native migrations (AWS/Azure), API design, and SQL/NoSQL performance tuning. Scripting : Python (preferred) or Java for custom business logic and automation. Pricing Logic : Strong understanding of EOD (End of Day) vs. Real-time ...

Infrastructure operations engineer

Hiring Organisation
Asset Inventories
Location
London Area, United Kingdom
Manage virtual machine lifecycle including provisioning, maintenance, migration, and decommissioning Perform OS rebuilds and bare metal provisioning using Rebar Maintain infrastructure stability, availability, and performance Operating Systems Advanced Linux administration including troubleshooting, patching, hardening, and performance tuning Windows Server administration and operational support Perform system upgrades, rebuilds … recovery activities Cloud Support Provide operational support for AWS cloud environments Troubleshoot cloud infrastructure, performance, networking, and access issues Monitor cloud resources and recommend improvements for reliability, security, and cost efficiency Support hybrid infrastructure environments Infrastructure as Code and DevOps Strong experience with Terraform for infrastructure provisioning and updates ...

Senior Java Software Engineer

Hiring Organisation
TetriQ Solutions
Location
City of London, London, United Kingdom
Innovation: Stay updated on emerging Java technologies, propose new solutions, and contribute to innovation initiatives. • Troubleshooting: Analyze logs, resolve complex technical issues, and perform performance tuning. • Documentation: Write technical specifications and other documentation for new and existing applications. Qualifications: • Education: Bachelor's degree in Computer Science, Engineering ...

Data Architect

Hiring Organisation
La Fosse
Location
City of London, London, United Kingdom
pricing, and intelligent automation. This is a high-impact role where you’ll define the data strategy, set engineering standards, and build scalable, high-performance data platforms on Azure. 💡 Why this role stands out Architect the core data platform for a rapidly evolving, tech-driven insurance environment Work with … + lakehouse) Design scalable data models (dimensional, canonical, star/snowflake) Build and optimise Databricks solutions (Delta Lake, DLT, SQL Warehouses) Set standards for performance, governance, and cost efficiency on Azure SQL Lead best practices across ELT/ETL pipelines, CI/CD, and reusable transformations Embed data quality ...

Python Engineer

Hiring Organisation
Ncounter
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £90,000 per annum
hands-on engineering position where you will design, develop and optimise backend services and data pipelines. You will contribute to technical direction, improve system performance and ensure solutions are robust, maintainable and secure. The environment is highly collaborative, suited to engineers who enjoy solving complex problems and taking ownership … consultative, solutions-focused manner Nice to Have: Experience with data intelligence platforms (DataWalk, Palantir, Quantexa etc.) Linux experience, including scripting, debugging and system performance tuning Exposure to AWS or Azure environments Background working within secure, regulated or public sector environments This opportunity offers the chance to work ...

SAP Data & Analytics Lead

Hiring Organisation
N Consulting Global
Location
London Area, United Kingdom
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 … 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 ...

Data Engineer – Health Tech Fully Remote, UK

Hiring Organisation
interAct Consulting Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£55,000 - £70,000 per annum
with a problem-solving mindset. Collaborate with developers, analysts, and implementation teams to shape platform improvements. Contribute to data model design, quality assurance, and performance tuning. About You Strong experience with SQL (analytic queries, performance tuning, stored procedures). Proven experience building ETL pipelines using SSIS ...

Senior Sharepoint Developer

Hiring Organisation
Ryder Reid Legal
Location
City of London, London, United Kingdom
APIs and Microsoft Graph. SharePoint Administration & Operations Administer both SharePoint SE (onprem) and SharePoint Online environments. Manage updates, cumulative patches and platform maintenance. Monitor performance, availability, capacity and reliability. Oversee site collections, permissions, authentication, service applications and governance. Support backup, restore and disaster recovery processes. Troubleshoot complex cloud … JavaScript, React, HTML5, CSS3. Strong REST API and Microsoft Graph integration experience. Solid C#/.NET framework experience. Deep knowledge of SharePoint onprem administration, performance tuning, patching and troubleshooting. Experience with BCS and creating External Content Types. Strong SQL Server skills. Understanding of authentication, permissions, governance and security ...

Data Architect - CPG Domain / Azure

Hiring Organisation
Fractal
Location
City of London, London, United Kingdom
optimization, and production support of data pipelines Work with or extend existing/proprietary ETL frameworks (e.g., Mar's Simpel or similar) and improve performance and reliability Implement data modeling, transformation, and orchestration patterns aligned with best practices Apply data engineering fundamentals including partitioning, indexing, caching, cost optimization … performance tuning Collaborate with upstream and downstream teams to ensure data quality, reliability, and SLAs Architecture & Design Contribute to the design of cloud-native data architectures covering ingestion, processing, storage, and consumption Translate business and analytical requirements into practical, scalable data solutions Support data governance practices including metadata ...

Senior Manager

Hiring Organisation
JSS
Location
Greater London, England, United Kingdom
processes, validations, and reports Develop and optimise solutions, models, calculations, and transformation logic Perform advanced data manipulation, validation, and reconciliation across Tagetik modules Troubleshoot performance, data integrity, and calculation issues Data, SQL & Integrations Use SQL extensively for data extraction, transformation, validation, and root-cause analysis Manage data interfaces between … Tagetik and upstream/downstream systems, including ETL, Datasource configurations, and API/SFTP integrations Ensure robustness, auditability, and performance of data flows and analytical outputs Stakeholder & Team Enablement Translate finance requirements into practical, technically sound system solutions Act as a Tagetik subject matter expert, supporting and upskilling users ...

AWS Data Engineer

Hiring Organisation
Peaple Talent
Location
London Area, United Kingdom
with a focus on: AWS RDS (SQL Server & Aurora PostgreSQL) Building and operating data pipelines (incl. Snowflake integration) Leading SQL Server migrations to AWS Performance tuning, monitoring & optimisation You’ll work closely with cloud, engineering and application teams, playing a key role in shaping database standards and architecture ...