1 to 25 of 182 Permanent Performance Tuning Jobs in England

Senior MongoDB Engineer

Hiring Organisation
Tanantech
Location
Wolverhampton, West Midlands, United Kingdom
Employment Type
Permanent
ingestion, multi-stage workflows, and external integrations. We are looking for a hands-on Senior MongoDB Engineer with deep experience in database design, performance tuning, and cluster management within AWS cloud environments. This role requires someone who has worked extensively on production-grade MongoDB clusters, ensuring high availability … performance, and resilience in distributed systems. Senior MongoDB Engineer Key Responsibilities: MongoDB Architecture & Engineering Design and implement scalable MongoDB data models (schema design) for: Build and manage MongoDB clusters (replica sets & sharded clusters) Performance Tuning & Optimization Perform advanced query optimization and indexing strategies Proactively identify and resolve ...

DevOps Engineer

Hiring Organisation
Infinity Quest
Location
Halifax, England, United Kingdom
Networking & Security: Experience with GCP Cloud Armor, GCP Networking, and embedding secure-by-design controls from design to runtime. • Automation & Observability: Implementing actionable observability, performance tuning, and automation to reduce toil. Defining and operating against SLOs/SLIs. • Scripting & Tooling: Scripting in Bash, PowerShell, or Python. Familiarity with … managing Google resources, ensuring repeatability and compliance. • Security & Compliance: Embed security best practices and controls throughout the platform lifecycle, safeguarding organisational and customer data. • Performance & Reliability: Define, monitor, and operate against service level objectives (SLOs/SLIs), ensuring high availability, performance, and fault tolerance. • Continuous Improvement: Drive automation ...

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 ...

SQL Server and Data Platform Engineer

Hiring Organisation
Clarksons
Location
City of London, Greater London, UK
Azure SQL, Cosmos DB, Azure Data Factory, and Power BI. What You’ll Do Manage and support SQL Server environments (including Always On, upgrades, performance tuning, HA/DR) Improve how data moves through the platform using Azure Data Factory and related tools Build automation and CI/… make data more reliable and easier to use What We’re Looking For Strong SQL Server experience in production environments Good understanding of performance tuning, indexing, and high availability Experience with upgrades, backups, and disaster recovery Some exposure to Azure SQL or cloud data platforms Interest in automation ...

Principal Java Engineer

Hiring Organisation
RE Partners
Location
London Area, 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: Design … with DevOps, Product, and QA teams to ensure production-grade solutions. Drive architectural changes, advocate for best practices, and provide mentorship to peers. Drive performance tuning, fault tolerance, and observability improvements across services. Required Skills & Experience: 10+ years of experience in Java development with a focus on performance ...

Principal Java Engineer

Hiring Organisation
RE Partners
Location
Milton Keynes, England, United Kingdom
hybrid role is based in the UK 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 … with DevOps, Product, and QA teams to ensure production-grade solutions. Drive architectural changes, advocate for best practices, and provide mentorship to peers. Drive performance tuning, fault tolerance, and observability improvements across services. Required Skills & Experience: 10+ years of experience in Java development with a focus on performance ...

Infrastructure Engineer

Hiring Organisation
Searchability NS&D
Location
Epsom, England, United Kingdom
environments at enterprise scale Leading implementation and optimisation of Nutanix clusters across hybrid infrastructure Providing L2/L3 support for Nutanix platforms, including performance tuning and issue resolution Contributing to HLD/LLD design for Nutanix-based infrastructure solutions Supporting lifecycle activities including upgrades, patching and platform enhancements … Working closely with infrastructure teams to ensure resilient, scalable Nutanix deployments Troubleshooting complex Nutanix performance, storage and virtualisation issues Producing clear technical documentation and operational runbooks Essential Skills & Experience Strong hands-on experience with Nutanix HCI in enterprise environments (L2/L3 level) Proven experience designing and implementing Nutanix ...

Lead BI Developer

Hiring Organisation
Harnham
Location
London Area, United Kingdom
across podcasting, video and next generation consumer experiences. Their analytics and BI capability sits at the heart of digital strategy, supporting product teams, content performance and audience engagement. The business is actively modernising its data stack, moving away from legacy BI platforms toward scalable, best in class solutions. … optimise Power BI solutions, covering data modelling, DAX and semantic layers. Design robust data models using star schema principles and well managed relationships. Own performance tuning across Power BI models and reports to ensure scalability and usability. Partner closely with data engineering and analytics to shape high quality ...

System Programmer

Hiring Organisation
Pyramid Consulting, Inc
Location
Sheffield, England, United Kingdom
Support Team supporting large-scale DB2 subsystems across multiple mainframe environments and geographies. The ideal candidate will be responsible for ensuring the performance, integrity, security, maintenance, and availability of the DB2 database environment while providing L2/L3 production support for mission-critical applications. Key Responsibilities • Manage and support …/OS environments across enterprise mainframe systems. • Monitor database performance, tuning, integrity, availability, and security. • Install, configure, test, and maintain supported DB2 versions and monitoring tools. • Provide Level 2 and Level 3 support for DB2-based applications and environments. • Support highly responsive OLTP (CICS) DB2 environments. • Develop, manage ...

Microsoft SQL Database Site Reliability Engineer

Hiring Organisation
Jobleads-UK
Location
Knutsford, England, United Kingdom
world's largest financial institutions. What You'll Do Lead SQL Engineering - Solve complex SQL Server 2016-2022 challenges across availability, tuning, performance, and architecture. Shape the MSSQL SRE practice - Influence standards, patterns, SLIs/SLOs, and operational models for the SQL estate. Act as the top technical … product, engineering, and platform teams to deliver resilient, scalable database services. What You'll Bring Deep Microsoft SQL Server expertise (SQL 2016-2022) across performance tuning, HA/DR, internals, and enterprise‐scale architecture. Strong SRE mindset - SLIs/SLOs, error budgets, automation‐first thinking, and reliability engineering. ...

DBA - DV Cleared

Hiring Organisation
Hays
Location
Reading, Berkshire, South East, United Kingdom
Employment Type
Permanent
Salary
£600.0 - £650.0 per day + £600 day rate contract inside IR35
support, stability, and availability of Oracle databases. Key Responsibilities: Day-to-day administration of Oracle databases (11g/12c/19c) Database monitoring, performance tuning, and issue resolution Backup, restore, and recovery using RMAN Managing database security, users, roles, and access controls Supporting patching, upgrades, and routine maintenance … requests Essential Skills & Experience: Strong hands-on experience as an Oracle DBA Oracle Database administration (11g/12c/19c) Backup and recovery (RMAN) Performance tuning and troubleshooting Linux/Unix environments Experience working in secure or regulated environments Security Requirements: ACTIVE DV clearance (must be current ...

Lead - Systems Administration

Hiring Organisation
Mphasis
Location
City of London, London, United Kingdom
Support Engineer & Administrator experience to manage, support, and optimize Pitney Bowes mailing and shipping solutions. The role involves end-to-end platform administration, troubleshooting, performance tuning, and integration support across enterprise environments. Key Responsibilities Platform Administration & Support Administer and maintain Pitney Bowes systems (e.g., SendPro, Mailstream, Spectrum, EngageOne … patch management of Pitney Bowes applications. Manage system configurations, user roles, permissions, and access controls. Monitor system health and ensure high availability and performance of the platform. Production Support & Incident Management Provide L2/L3 support for production issues and critical incidents. Conduct root cause analysis (RCA) and implement ...

DBA - DV Cleared

Hiring Organisation
Hays Specialist Recruitment Limited
Location
Reading, Berkshire, England, United Kingdom
Employment Type
Full-Time
Salary
£600 - £650 per day
support, stability, and availability of Oracle databases.Key Responsibilities:Day-to-day administration of Oracle databases (11g/12c/19c)Database monitoring, performance tuning, and issue resolutionBackup, restore, and recovery using RMANManaging database security, users, roles, and access controlsSupporting patching, upgrades, and routine maintenanceWorking within secure, regulated environments … service requestsEssential Skills & Experience:Strong hands-on experience as an Oracle DBAOracle Database administration (11g/12c/19c)Backup and recovery (RMAN)Performance tuning and troubleshootingLinux/Unix environmentsExperience working in secure or regulated environmentsSecurity Requirements:ACTIVE DV clearance (must be current and transferable)UK national with ...

Senior Software Engineer (UK) in London - MineHub

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
London, United Kingdom Posted: 10 months ago This is a job posted by our partner Jooble Tech stack Architecture Python refactoring TypeScript Software Engineer Performance tuning Django Company MineHub offers an open, enterprise‐grade platform designed for digital trade that enhances efficiency, security, and responsibility within the mining … scalable software solutions using Python/Django (legacy) and TypeScript (future). Proactively optimize and modernize systems through tech debt reduction, code refactoring, performance tuning, and ... Compensation Competitive Role type Full time Visa sponsorship Not provided #J-18808-Ljbffr ...

Oracle Developer

Hiring Organisation
Expleo Group
Location
Preston, Lancashire, North West, United Kingdom
Employment Type
Permanent
applications built on Oracle technologies. This role focuses on maintaining and improving existing systems, resolving production issues, implementing enhancements, and ensuring the stability and performance of Oracle-based business applications. The ideal candidate will have strong hands-on expertise in Oracle Database 19c, PL/SQL, and application maintenance … constraints. Support data fixes, data migration, and data validation activities in production and non-production environments. Ensure database code aligns with best practices, performance standards, and security guidelines. Application Maintenance & Production Support Provide day-to-day support and maintenance for Oracle-based applications across multiple environments. Troubleshoot and resolve ...

Senior Backend Engineer

Hiring Organisation
MarkIT Placements
Location
Didcot, Oxfordshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
e.g. Celery, Redis Streams, Kafka) to enable scalable async workloads, retries, and fault-tolerant integrations. Design data models and optimise relational databases (PostgreSQL) for performance, partitioning, and horizontal scale. Introduce caching, rate limiting, and queuing to meet performance budgets and latency goals. Integrate with AI pipelines and model … with event-driven architectures. Proven experience designing and operating production REST APIs with OpenAPI/Swagger. Deep understanding of relational database design, indexing, performance tuning, and migrations (PostgreSQL). Proficiency with containerisation (Docker) and Git-based workflows. Experience with API versioning, security, documentation strategies, and automated testing. Strong ...

Senior Data Architect

Hiring Organisation
Euro Car Parks
Location
Central London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
hands-on Senior Data Architect who is equally comfortable designing the target state for a multi-system SQL data estate, writing and tuning the T-SQL that delivers it, and standing up the security, monitoring and operational practices that keep it running. You will own data architecture across … framework and PowerShell development at expert level partition design and partition-aligned indexing, clustered/nonclustered index strategy, deduplication, parallel-run cutovers, schema migration, performance tuning of high-impact production queries. Driving the in-flight ETL replatform replacing legacy SSIS jobs with a table-driven, parallel ...

Senior Data Analyst

Hiring Organisation
Eden James Consulting Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
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. A strong understanding of Power BI engineering discipline: PBIP/TMDL source format, Git-based version control … with demonstrable experience in a team setting. Proven ability to carry out peer review and QA of analytics work, spotting model errors, DAX issues, performance problems and UX weaknesses. Excellent written and verbal communication skills, including presenting to underwriting and senior stakeholders, with a track record of turning ambiguous ...

iOS Developer

Hiring Organisation
IBU
Location
City of London, London, United Kingdom
highly skilled and motivated iOS Developer to join our dynamic engineering team. The ideal candidate will have strong expertise in building scalable, high-performance iOS applications using modern Apple technologies and best development practices. You will collaborate closely with cross-functional teams to design, develop, test, and maintain robust … Specialisms: Xcode Programming Languages: Swift, SwiftUI, Obj-C RELEVANT EXPERIENCES: Familiarity with Restful APIs to connect iOS applications to back-end services Experience with Performance and Memory Tuning with tools such as instruments Experience with threading and performance tuning Unit and UI testing Accessibility support DESIRED ...

Applications Developer

Hiring Organisation
E.surv Limited
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent
other relational database management systems, maintenance plans, database user and security audit with a proven track record on how to achieve maximum database performance by analysing execution plans, indexes, query performance tuning and other SQL best practices. Proven and demonstrable experience in web programming using the Django … management systems including SQL. Expertise in provision, implementation, maintenance and evolution of the e.surv data warehouse, databases and associated technology whilst also ensuring maximum performance from systems. Good working knowledge of the Linux and Windows command line interfaces. Good working knowledge of user interface design technologies. Ability to coach ...

Application Developer

Hiring Organisation
E.surv Limited
Location
Kettering, Northamptonshire, East Midlands, United Kingdom
Employment Type
Permanent
other relational database management systems, maintenance plans, database user and security audit with a proven track record on how to achieve maximum database performance by analysing execution plans, indexes, query performance tuning and other SQL best practices. Proven and demonstrable experience in web programming using the Django … management systems including SQL. Expertise in provision, implementation, maintenance and evolution of the e.surv data warehouse, databases and associated technology whilst also ensuring maximum performance from systems. Good working knowledge of the Linux and Windows command line interfaces. Good working knowledge of user interface design technologies. Ability to coach ...

Lead Data Engineer / Data Tech Lead

Hiring Organisation
Enablis
Location
Leeds, England, United Kingdom
warehousing solutions Act as a hands-on engineer on complex or high-risk components where required Define and promote best practices for data quality, performance, security and governance Collaborate closely with clients and stakeholders to shape data strategies and solutions Ensure data platforms meet non-functional requirements such … cloud-based data platforms such as AWS (Redshift, Glue), Azure (Data Factory, Synapse) or GCP (BigQuery, Dataflow) Advanced proficiency in SQL, including optimisation and performance tuning Strong experience with ETL/ELT pipelines and data transformation frameworks Programming capability in Python, Scala or Java for data processing Deep ...

Senior Software Engineer (DevOps)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
observable systems using modern DevOps practices, including infrastructure as code and automated quality controls. Take ownership of services in production, including monitoring, troubleshooting, performance tuning and reliability improvements. Work directly with customers to understand requirements, shape technical solutions and clearly communicate progress, risks and outcomes. Troubleshoot complex issues ...

Senior Infrastructure Analyst

Hiring Organisation
Simmons & Simmons
Location
Bristol, Gloucestershire, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
Azure Monitor, Log Analytics/KQL, Application Insights, Science Logic), and improve alerting and diagnostics. Lead reliability and resilience improvements such as such as performance tuning, resource optimisation, cost optimization using FinOps and provide availability enhancements, aligned to our service- level expectations. A senior analyst is expected ...

Generative AI Engineer

Hiring Organisation
Immersum
Location
London Area, United Kingdom
attribution models, allocations, and reporting frameworks — into scalable technical systems Architect and optimise data models and database layers , including schema design, indexing strategies, query tuning, and stored procedures Develop and maintain CI/CD pipelines and engineering tooling to support reliable, frequent, and high-quality deployments Implement event-driven … architectures using Kafka , enabling real-time data processing, system decoupling, and auditability Ensure high performance, reliability, and scalability across distributed systems, including observability, monitoring, and production readiness Partner with product, operations, and investment stakeholders to refine requirements and deliver iterative solutions in Agile environments Core requirements 8+ years ...