1 to 25 of 45 Performance Tuning Jobs in the South East

Oracle Database Engineer - up to £90,000 + Bonus - Hybrid

Hiring Organisation
Involved Solutions
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £90,000 per annum
hire an experienced Oracle Database Engineer for their database and platform engineering team. This is a hands-on position covering Oracle administration, automation and performance engineering across large-scale Exadata and cloud environments, including Autonomous Exadata Cloud@Customer. The Oracle Database Engineer role suits an Oracle professional who wants … move beyond routine administration into platform engineering: building automation that removes manual overhead, tuning at scale, and owning multi-tenant database architecture across mission-critical systems. About the role - Oracle Database Engineer (Oracle DBA): Build automation tooling and platform solutions using Ansible and scripting to reduce manual work across ...

Database/Data Engineer

Hiring Organisation
Salt Search
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£230.00 per day
configure database environments across development through to production Automate database provisioning, configuration and deployments Integrate database changes into CI/CD pipelines Support performance tuning, query optimisation and complex troubleshooting Engineer for high availability, resilience, security and recovery Support database migrations, upgrades and modernisation initiatives Work closely with … Looking For Strong hands-on Oracle and PostgreSQL experience Experience with at least one of Cassandra, MongoDB or Couchbase Strong database engineering, performance tuning and troubleshooting skills Automation experience using Terraform, Ansible, Python and/or Shell Experience with Infrastructure as Code, CI/CD and Git Experience ...

Cassandra Database Engineer

Hiring Organisation
Robert Walters
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£650.00 - £706.00 per day
associated technical design. Design for high availability, including active-active architecture, failover and disaster recovery . Build, configure and operationalise Cassandra clusters. Undertake performance tuning, capacity planning and production readiness activities. Manage cluster operations including node additions/decommissions, repairs, backups and recovery. Work closely with application, middleware … production environments Keyspace and table design Data modelling and partition-key design Replication factors and consistency Cassandra architecture and configuration Cluster operations and troubleshooting Performance tuning and capacity planning High availability, failover and disaster recovery CQL and Cassandra internals Linux administration and scripting Experience with technologies such ...

Data Engineer, Vice President

Hiring Organisation
Hackajob Ltd
Location
Slough, Berkshire, UK
Employment Type
Full-time
data collection, deep market expertise, and continuously evolving methodologies. Its data and technology underpin how investors raise capital, evaluate opportunities, monitor portfolios, and assess performance at scale. About Company Intelligence Company Intelligence is Preqins private company data platform, providing structured, auditable company-level data and analytics across the private … markets investment lifecycle. It integrates company, deal, and ownership data with fund, manager, and performance information to deliver a connected view of private capital activity. Built on granular data and robust methodologies, Company Intelligence supports scalable analysis across deal sourcing, due diligence, valuation benchmarking, and comparative research. By increasing ...

Senior Software Engineer Python

Hiring Organisation
MarkIT Placements
Location
Didcot, Oxfordshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
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 DevOps Engineer

Hiring Organisation
MarkIT Placements
Location
Didcot, Oxfordshire, South East, United Kingdom
Employment Type
Permanent
controls. Support the organisation's ongoing compliance and certification requirements. Reliability & SRE Establish and maintain observability across distributed systems. Develop proactive monitoring, alerting and performance-tuning strategies. Help maintain service-level objectives and platform availability. Investigate and resolve infrastructure and application incidents. Coordinate emergency changes, hot fixes … regular capacity and availability reviews. Identify opportunities for AWS cost optimisation. Make effective use of AWS Compute Optimizer, Savings Plans and Graviton . Balance performance, availability, security and cost when making infrastructure decisions. Governance & Compliance Support regular technical and security audits. Maintain infrastructure provenance and configuration records. Implement infrastructure ...

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 Data Analyst

Hiring Organisation
Eden James Consulting Limited
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
Factory, Synapse/Fabric, SQL-based semantic layers). Advanced Power BI engineering skills: data modelling (star schemas), advanced DAX, Power Query/M, performance tuning and RLS, alongside sound engineering discipline, PBIP/TMDL source format, Git-based version control, pull-request review, and structured release, deployment ...

Senior Director of Corporate Applications

Hiring Organisation
Iris Software Group
Location
Slough, Berkshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
Ensure billing systems integrate cleanly with CRM and ERP platforms to maintain a single source of truth for customer and revenue data. Application Reliability & Performance Use Datadog (or equivalent) monitoring to proactively detect issues, identify emerging trends, and deflect incidents before they impact the business. Own application performance tuning and capacity planning across the corporate applications estate, ensuring systems remain fast, stable, and reliable at scale. Establish clear incident management, escalation, and post-incident review processes for corporate systems. Track, analyse, and act on platform performance and reliability metrics, reporting on system health to business ...

SQL Server Developer

Hiring Organisation
Reqwest Limited
Location
Dartford, Kent, South East, United Kingdom
Employment Type
Permanent, Work From Home
applications. Key responsibilities SQL Server database development Complex T-SQL development and optimisation Stored procedures, views and functions Relational database design and data modelling Performance tuning and troubleshooting Supporting database changes through development, test and production Working with developers and stakeholders on new systems and enhancements About … Server database development in production environments , including: Excellent T-SQL skills Strong SQL Server and SSMS experience Relational database design and data modelling Performance optimisation and troubleshooting Experience supporting business-critical applications Exposure to SQL Server Always On/high availability , SQL Server administration, source control, CI/ ...

Senior Full Stack Developer (Java / Angular)

Hiring Organisation
Pontoon
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£700.00 - £750.00 per day
Support Assist in the investigation and resolution of production issues. Participate in incident management, root cause analysis, and system improvement initiatives. Ensure platform stability, performance, and operational reliability. Technical Leadership & Mentoring Provide guidance and mentorship to other engineers. Share knowledge and best practices across the team. Foster a collaborative … Strong knowledge of relational database systems such as: Oracle Microsoft SQL Server Other enterprise-grade RDBMS platforms Experience with: Data modelling Query optimization Database performance tuning Large-scale data management Messaging & Integration Apache Kafka IBM MQ FIX Protocol Understanding of event-driven architectures and asynchronous processing patterns. Delivery ...

Principal Java Engineer

Location
Wallingford, England, United Kingdom
architecture and technical direction across multiple products and services. Design, implement and review high-quality Java and full-stack solutions, APIs and integrations. Lead performance optimisation, scalability and resilience initiatives. Drive security best practices, vulnerability remediation and secure software development lifecycle (SDLC) practices. Work closely with Data, Operations, DevOps … complex production issues. Drive improvements in system observability, monitoring and operational performance. Ensure applications are designed and operated to meet reliability, availability and performance targets. Partner with Operations, DevOps and QA teams to maintain production stability and service quality. Embed a culture of operational excellence, continuous improvement and proactive ...

Data Engineer

Hiring Organisation
Tiro Partners Limited
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £90,000 per annum
pipelines using Python and orchestration tools such as Dagster. Create and optimise efficient data models to support both transactional and analytical workloads. Develop high-performance SQL queries, procedures, and integrations for APIs and data services. Debug, enhance, and maintain existing systems and codebases. Build and execute unit and integration … tests to ensure reliability and maintainability. Conduct profiling and performance optimisation to improve scalability and responsiveness. Produce clear technical documentation for pipelines, databases, and architecture. Collaborate with cross-functional engineering teams across backend, cloud, and product development. Contribute to architectural decisions and continuously evaluate new technologies and best practices. ...

Lead Software Engineer

Hiring Organisation
Hackajob Ltd
Location
Milton Keynes, England, United Kingdom
work environment (e.g., for coding, test creation, troubleshooting, or documentation) with demonstrated ability to critically evaluate, validate, and refine AI-generated outputs for correctness, performance, and security Understanding of responsible AI use in engineering workflows, including data sensitivity considerations, secure handling of inputs/outputs, and adherence to resiliency … their IT systems Preferred qualifications, capabilities, and skills Experience with high-volume batch and real-time data processing using PySpark or similar frameworks, including performance tuning and troubleshooting of large-scale data pipelines In-depth knowledge of relational and distributed databases (e.g., Oracle, Databricks) with hands-on experience ...

Data Engineer

Hiring Organisation
Biffa
Location
High Wycombe, Buckinghamshire, UK
Employment Type
Full-time
technologies. Experience working with structured, semi-structured and large-volume datasets. Knowledge of data governance, security and data quality practices. Strong troubleshooting, optimisation and performance tuning skills. Changing the way people think about waste. At Biffa, we love working with waste. Whether we're turning it into sustainable ...

Head of Data & Analytics - Leading Edge - Financial Services (FinTech Start-up)

Hiring Organisation
Remote Recruit Services Limited
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£110,000 - £130,000 per annum
data platform. Responsibilities include: Designing ETL and ELT pipelines Change Data Capture (CDC) AWS Database Migration Service (DMS) Amazon Redshift optimisation SQL performance tuning Data pipeline monitoring Automation Data lifecycle management AWS Data Platform Own the organisation's cloud data platform, including: Amazon Redshift AWS Database Migration Service ...

Senior Data Engineer

Location
Farnborough, England, United Kingdom
engineering, with a track record of building and maintaining production pipelines and dbt projects at scale Advanced SQL skills: CTEs, window functions, LATERAL joins, performance tuning, and complex multi-source financial queries Production dbt experience: modular models, tests, documentation, and semantic metadata for both AI and BI consumers ...

Senior Data Engineer

Location
Brighton, England, United Kingdom
engineering, with a track record of building and maintaining production pipelines and dbt projects at scale Advanced SQL skills: CTEs, window functions, LATERAL joins, performance tuning, and complex multi-source financial queries Production dbt experience: modular models, tests, documentation, and semantic metadata for both AI and BI consumers ...

Senior Director of Corporate Applications

Hiring Organisation
IRIS
Location
Slough, Berkshire, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
footprint, reducing tool sprawl and duplicate functionality. Develop and execute modernization, consolidation, and platform convergence plans across legacy and current-generation systems. Application Reliability & Performance Use Datadog (or equivalent) monitoring to proactively detect issues, identify emerging trends, and deflect incidents before they impact the business. Own application performance tuning and capacity planning across the corporate applications estate, ensuring systems remain fast, stable, and reliable at scale. Establish clear incident management, escalation, and post-incident review processes for corporate systems. Configuration Discipline & Platform Governance • Champion a configuration-first approach on hosted SaaS platforms, resisting unnecessary customization ...

Oracle PL/SQL Developer

Hiring Organisation
Proactive Appointments
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £55,000 per annum
development using PL/SQL Strong SQL skills and experience using tools such as SQL Developer, Toad or SQL*Plus Experience writing complex and performance-focused SQL queries Experience debugging and performance-tuning PL/SQL Experience with ETL processes and data extraction/transformation/loading ...

Database Administrator (DBA)

Hiring Organisation
Technify Talent Limited
Location
Reading, Berkshire, United Kingdom
Employment Type
Permanent
Salary
£70000 - £80000/annum
complex, high-availability database environment that supports a sophisticated operational software platform. This is an opportunity to join an innovative engineering team where reliability, performance and automation are central to delivering cutting-edge technology. Working closely with software engineers, platform specialists and data teams, you'll ensure the database … production MariaDB/MySQL databases. Develop and manage robust database schema migrations with safe deployment, validation and rollback processes. Monitor, analyse and optimise database performance in high-volume, write-intensive environments. Design and maintain backup, recovery and data retention strategies, regularly validating restore processes. Implement and maintain database security ...

Data Engineer (Snowflake & Kafka)

Hiring Organisation
Lorien
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£0 per annum
experience with AWS services , particularly S3 for storage and Lambda for serverless processing. Solid understanding of data modelling , ETL/ELT processes, and performance optimization. Programming & Engineering Skills Proficiency in Python for data engineering tasks and automation. Ability to design and implement scalable, maintainable data pipelines . Experience with … cloud-native environments and following security/compliance standards. Nice-to-Have Exposure to streaming data architectures and event-driven systems. Knowledge of Snowflake performance tuning and cost optimization. If you find this opportunity intriguing and aligning with your skill set, we welcome the submission of your ...

Data Migration Manager

Hiring Organisation
Marc Daniels
Location
High Wycombe, Buckinghamshire, United Kingdom
Employment Type
Permanent
Salary
£60000 - £70000/annum
medium or large organisation, with a strong technical understanding of data extraction, transformation and loading. You will ideally have: Strong T-SQL programming and performance-tuning experience. Hands-on experience with SSIS and/or Azure Data Factory . Extensive experience of data transformation and integrations. Strong data ...

Senior PHP Developer

Hiring Organisation
INTEC SELECT LIMITED
Location
Basingstoke, Hampshire, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £70,000 per annum
7.4 (CakePHP) and PHP 8+ (Laravel/Symfony). Experience building RESTful APIs and backend services. Strong MySQL knowledge, including query optimisation and performance tuning. Understanding of software architecture, design patterns, and SOLID principles. Experience with JavaScript (ES6+), HTML5, CSS, Git, Docker, and Linux/WSL environments. Strong experience ...

Data Engineer (Snowflake, DBT, AWS)

Hiring Organisation
Red Commerce
Location
Basildon, Essex, South East, United Kingdom
Employment Type
Contract
Perform data mapping and transformation from source systems into target data models. Ensure data quality, lineage, governance, and documentation standards are maintained. Optimise Snowflake performance, queries, materialisations, and data models. Collaborate with architects, analysts, and engineering teams to deliver high-quality data solutions. Required Skills & Experience Strong hands … experience with Snowflake and DBT . Extensive SQL development and performance tuning expertise. Experience building and supporting ETL/ELT frameworks. Strong understanding of data warehousing concepts and dimensional modelling. AWS experience, including services such as S3, Glue, EMR, or PySpark . Knowledge of data governance, quality controls ...