1 to 25 of 35 Permanent Performance Tuning Jobs in the South East

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 ...

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 ...

Senior MS SQL Database Administrator

Hiring Organisation
KBR
Location
Leatherhead, Surrey, United Kingdom
Salary
£ 80 K
forefront of leveraging technology to create lasting business value.About the RoleThe Senior MS SQL Database Administrator is responsible for the administration, maintenance, performance, security, and availability of enterprise Microsoft SQL Server environments supporting critical business applications worldwide. This role serves as a senior member of the Global Database Team … deep Microsoft SQL Server expertise with strong troubleshooting, automation, and operational support skills. This individual will play a key role in ensuring database reliability, performance, and compliance while supporting modernization initiatives, cloud technologies, and enterprise database governance standards.Key ResponsibilitiesInstall, configure, upgrade, and maintain enterprise Microsoft SQL Server environments.Manage database ...

Senior MS SQL Database Administrator

Hiring Organisation
KBR
Location
Leatherhead, Surrey, UK
Employment Type
Full-time
forefront of leveraging technology to create lasting business value. About the RoleThe Senior MS SQL Database Administrator is responsible for the administration, maintenance, performance, security, and availability of enterprise Microsoft SQL Server environments supporting critical business applications worldwide. This role serves as a senior member of the Global Database … deep Microsoft SQL Server expertise with strong troubleshooting, automation, and operational support skills. This individual will play a key role in ensuring database reliability, performance, and compliance while supporting modernization initiatives, cloud technologies, and enterprise database governance standards. Key ResponsibilitiesInstall, configure, upgrade, and maintain enterprise Microsoft SQL Server environments. ...

Senior Systems Engineer II

Hiring Organisation
LexisNexis Risk Solutions Group
Location
Guildford, Surrey, United Kingdom
Salary
£ 80 K
respond promptly to handle storage, backup, infrastructure, and data protection exceptions, ensuring high availability, data integrity, and minimal business impact.Diagnose complex system, storage performance, and data protection problems using logs, traces, performance metrics (I/O, latency, throughput), and advanced diagnostic tools.Manage and administer enterprise storage arrays (Dell … software. Switch CLI experience a plus.Design, implement, and manage cloud storage and backup solutions on Microsoft Azure and Amazon Web Services (AWS), optimizing for performance, security, compliance, scalability, and cost efficiency.Develop, maintain, and optimize automation scripts, workflows, and infrastructure-as-code (IaC) solutions using Bash, Python, Terraform, and complementary ...

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 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 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 ...

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 ...

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
with Kafka concepts (producers, consumers, topics) and ability to integrate with streaming data pipelines. 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 … 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 ...

MLOps Engineer

Location
Oxford, England, United Kingdom
magnitude faster speeds and at far greater scales than ever before, all whilst consuming far less energy than traditional approaches. Lumai is unlocking performance and efficiency gains that could transform the economics of AI and compute infrastructure and reshape how intelligence scales globally. If you are passionate about bringing … tuned to our hardware-in-the-loop workflows Own CI/CD for ML: automated testing of model correctness, numerical accuracy, and on-chip performance after every change to models, compilers, or firmware Develop and maintain tooling for benchmarking model inference on custom silicon, including latency, throughput, power ...

Senior Developer

Hiring Organisation
Young's Employment Services Ltd
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £90,000 per annum, Negotiable
Management, Azure DevOps etc Good knowledge and experience with Azure AI Foundry Strong SQL/SQL Server experience — schema design, EF Core migrations, query performance tuning etc Good knowledge of software architecture, scalability and best practice Experience with Microservices patterns Experience with Frontend Development - React/TypeScript/ ...

Data Migration Manager

Hiring Organisation
Biffa
Location
High Wycombe, Buckinghamshire, United Kingdom
Salary
£ 80 K
medium or larger sized organisations. Analytical mindset with a commitment to detail and adherence to coding and documentation standards. Advanced T-SQL programming and performance tuning abilities. Skilled in using SSIS or Azure Data Factory to manage data migration. Excellent communication and ability to explain technical challenges ...

Proofpoint SME- SC Cleared or SC Eligible

Hiring Organisation
Vallum Associates
Location
Wokingham, England, United Kingdom
DKIM o DMARC • Conduct threat analysis and provide recommendations to enhance email security posture. • Perform platform upgrades, health checks, troubleshooting, and performance tuning. • Collaborate with SOC, Security Operations, Infrastructure, and Microsoft 365 teams on security initiatives. • Develop operational procedures, knowledge articles, and technical documentation. • Support audits, compliance activities ...

Senior Front Office Software Engineer

Hiring Organisation
CMC Markets
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
Markets is seeking a Senior Low Latency Java Developer to join our Quantitative Strategies team within Pricing & Risk, working on our high-performance, high-frequency trading platform. This is a hands-on role at the core of our market-making technology stack, where nanoseconds matter and engineering excellence … critical. You’ll design and build ultra-low latency pricing and risk systems that directly power our global trading operations. If you thrive in performance critical environments and want your work to have real market impact, we would love to hear from you. Please note that this ...

Analytics Engineer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£400.00 - £450.00 per day
implementing dbt models that power clean, consistent metrics. Buidl out orchestartion pipelines using Airflow Creating clear documentation for dashboards, metrics, and models. Ensuring optimal performance and cost efficiency across Snowflake Supporting a stakeholder-first approach to data usability and access. KEY SKILLS AND REQUIREMENTS Extensive experience operating within Snowflake … clarity. Comfortable working independently in a dynamic, fast-changing environment. DESIRABLE SKILLS Experience rebuilding or refactoring a Looker instance from scratch. Familiarity with Snowflake performance tuning and cost optimization. Experience scaling analytics across a cross-functional organisation HOW TO APPLY Please register your interest by sending your ...

Senior Ruby on Rails Developer

Hiring Organisation
Run-Time Group Ltd
Location
Reading, Berkshire, South East, United Kingdom
Employment Type
Permanent
MySQL, Redis, Elasticsearch Async Processing: Sidekiq, Resque Cloud & DevOps: AWS, Heroku, Docker, CI/CD pipelines, IaC Testing & Quality: RSpec, Capybara, TDD methodologies Security, performance tuning, and system hardening AI & LLMs: API integration, prompt engineering, AI-enhanced features and developer tooling Responsibilities: Owns end-to-end system architecture ...

Campaign Build Manager

Hiring Organisation
VodafoneThree
Location
Newbury, Berkshire, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
merge policies, and identity configurations to enable accurate data capture and segmentation Integrating AEP with external systems using APIs and other methods to ensure performance, scalability, and efficiency Monitoring and optimising data flows through testing, analytics, and performance tuning Acting as a trusted advisor to stakeholders-challenging ...

Senior AI Engineer

Location
Wokingham, England, United Kingdom
Gemini, etc.) and relevant frameworks (e.g., LangChain, LangGraph, Crew AI, or similar). Deploy, operate, and iterate on AI systems in production environments, including performance tuning and cost optimization. Design and build Retrieval-Augmented Generation (RAG) systems using embeddings, vector databases, and semantic search. Build and optimize prompts … components of the agentic applications, from backend logic to API integrations. Implement testing, evaluation and monitoring strategies for agentic systems to ensure performance, reliability, and safety, and effective reasoning, tool usage, and failure handling. Collaborate closely with product managers, designers, and other engineers to translate requirements into technical solutions. ...

Senior Quantexa Data Engineer

Hiring Organisation
Lorien
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £85,000 per annum
technical authority and client interface, translating regulatory or business problems into scalable Quantexa architectures Leads teams in shaping data models, ER logic, and performance tuning across high-volume, enterprise datasets Mentors teams while influencing delivery standards, design patterns, and best practice within the workstream In order to secure ...

Lead Business Intelligence Analyst

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £60,000 per annum
within their sector and a growing commitment to data-driven decision making. Data sits at the heart of their strategy, supporting product development, commercial performance, and operational effectiveness. With a collaborative data team and investment in modern analytics platforms, they are building a scalable, governed, and future-focused data … frameworks, and reporting standards Acting as the escalation point for complex BI and reporting challenges Partnering with data engineering teams on architecture, modelling, and performance optimisation Contributing to a major cloud migration programme and helping modernise the wider analytics ecosystem Your Skills & Experience Strong commercial experience with Tableau, including ...