126 to 150 of 211 Performance Tuning Jobs in the UK

Connectivity & Messaging Engineer

Hiring Organisation
Block MB
Location
City of London, London, United Kingdom
deployment processes to ensure high quality and repeatable releases. Provide operational support and incremental enhancements for a 24/7 production environment, contributing to performance tuning and incident response as needed. What we’re looking for Strong software engineering experience writing clean, efficient and well-tested code … with containerisation and orchestration technologies (Docker, Kubernetes) and cloud-aligned engineering patterns. A proactive mindset with a passion for simplifying complex systems, optimising runtime performance and enhancing developer/operational workflows. Nice to have Experience with connectivity protocols like FIX or other financial messaging standards. Prior work on large ...

PostgreSQL DBA

Hiring Organisation
coforge
Location
Sheffield, South Yorkshire, United Kingdom
Employment Type
Permanent
Sheffield, UK. Job Summary: As a PostgreSQL Database Administrator (DBA), you will play a vital role in managing PostgreSQL databases to ensure their optimal performance and reliability. Expertise in PostgreSQL, particularly in GCP environments, will be considered a significant advantage. You will be responsible for managing database schemas, optimizing … integrate PostgreSQL databases into the infrastructure and ensure their optimal performance. Perform PostgreSQL database backups, recovery, and restoration activities. Optimize PostgreSQL configurations and query performance for transactional workloads. Design and implement PostgreSQL data models and SQL scripts for transactional workloads. Manage PostgreSQL databases in GCP environments (preferred). Diagnose ...

Data Platform & Engineering Lead

Hiring Organisation
IO Associates
Location
United Kingdom
Employment Type
Contract, Work From Home
project, you'll be involved in: Migrating enterprise data workloads from Teradata and other legacy systems into Databricks on Azure Designing and building high-performance PySpark pipelines , Delta Lake tables, and medallion architectures Developing scalable ETL/ELT workflows and optimising existing pipelines Implementing Unity Catalog , governance frameworks … platform standards Leading or contributing to cloud-native data platform builds Performance tuning, cost optimisation, and FinOps-aligned engineering Working closely with analytics, data science, and product teams to deliver real business value These projects move fast - you'll be expected to deliver clean, scalable, production-ready engineering ...

Senior Data Architect - Healthcare

Hiring Organisation
RP Recruitment Ltd
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent
role requires balancing OutSystems low-code delivery with strict security for sensitive demographic data. Key Responsibilities Develop highly normalised, scalable data models ensuring performance and integrity Implement secure-by-design practices (RLS, data masking, encryption) Architect FHIR-based integrations via REST/OData Lead GDS data architecture (Point … covering minimisation, retention, and ethics Define data contracts and govern third-party integrations Technical Skills Advanced SQL Server/Azure SQL (T-SQL, performance tuning, indexing) Database security (TDE, audit logging) Knowledge of interoperability standards and clinical safety (DCB0129/0160) Experience delivering successful GDS Beta Assessments Capabilities ...

Site Reliability Engineer

Hiring Organisation
Halian | Managed Services, Recruitment Agency & Contract Staffing
Location
United Kingdom
major incidents, mitigation, RCA, and preventative improvements Own and refine SLIs, SLOs, and error budgets Reduce operational toil through automation Deep-dive Linux debugging, performance tuning, and systems analysis Strengthen observability, monitoring, and alerting Provide technical leadership to a small SRE/engineering group Improve and manage … teams to build reliability into system design What You’ll Bring Strong AWS experience (EC2, networking, autoscaling, IAM, load balancing) Deep Linux troubleshooting skills (performance, networking, debugging) Real 24/7 production on‐call experience Hands‐on incident management and postmortems Experience mentoring or leading a small technical team ...

NET developer

Hiring Organisation
Tank Recruitment
Location
Preston, Lancashire, United Kingdom
Employment Type
Permanent
Write clean, maintainable, and efficient code following best practices Participate in code reviews and contribute to technical discussions Debug and resolve application issues and performance bottlenecks Collaborate with front-end developers, QA engineers, and product teams Support deployment processes and assist with CI/CD pipelines Document technical designs … development Strong proficiency in C# and ASP.NET/.NET Core Solid experience with Microsoft SQL Server Experience writing complex SQL queries, stored procedures, and performance tuning Understanding of RESTful APIs and web services Familiarity with Git or other version control systems Basic understanding of object-oriented programming ...

Lead RPG Developer (IBM i)

Hiring Organisation
Morson Edge
Location
City of London, London, United Kingdom
Employment Type
Permanent
development, enhancement, and support of critical banking applications on the IBM i platform. This role requires strong technical expertise, particularly in system security, performance, and resilient application design. About the Role As an Leading RPG Developer, you will work closely with business and technical stakeholders to deliver robust, secure …/400) operating system RPG (fixed and free format), CL, and embedded SQL IBM Rational Developer for i (RDi) DB2 for i and SQL performance tools (including Visual Explain) IBM i Security features (user profiles, authorization lists, object-level security) System APIs and SQL Services for system management Journaling ...

Lead .Net/SQL Developer

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£800 - £850 per day
Extensive C# .Net Development experience ideally within financial services, on data-heavy projects. Extensive SQL server experience - Must Have. Solid experience in database modelling, performance tuning, and optimisation. Thorough knowledge of application programming for data intensive applications on SQL Server using Stored Procedures/tSQL. Good knowledge ...

Infrastructure Engineer

Hiring Organisation
Solutions Through Knowledge
Location
Cirencester, Gloucestershire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£340 per day
Linux administration skills - RHEL/CentOS/Ubuntu Proven large-scale migration experience Experience with automation tools (e.g. Quest) Knowledge of HA, backup, monitoring, performance tuning Strong troubleshooting and problem-solving skills Able to validate and challenge automation Confident working with application teams and stakeholders ...

MS Dynamics Developer (SC, DV or NATO cleared)

Hiring Organisation
Church International Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
C# following best practices Support full life cycle implementations from requirements through to post-go-live Provide third-line support, troubleshooting, and performance tuning Collaborate with stakeholders to translate business needs into technical solutions Contribute to documentation, testing, and continuous improvement initiatives If you are interested then apply ...

Senior Sharepoint Developer

Hiring Organisation
Larbey Evans
Location
City Of London, England, United Kingdom
CSS3) Experience integrating SharePoint solutions using REST APIs, Microsoft Graph, C#, and .NET Hands-on management of on-prem SharePoint environments, including patching, upgrades, performance tuning, and troubleshooting Experience with Business Connectivity Services (BCS), External Content Types (ECTs), and SQL Server design and optimisation ...

Ruby Developer

Hiring Organisation
Proactive Appointments
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 70,000 - 80,000 Annual
love to hear from you. Key Skills 4+ years' experience with Ruby on Rails Strong understanding of OOP & Rails architecture Extensive experience with PostgreSQL (performance tuning, complex queries) Background job processing with Sidekiq & Redis Expertise in RESTful APIs , JSON, JWT, SSO Experience with AWS & Docker Production system support ...

Mainframe Engineer

Hiring Organisation
Impellam Group
Location
City of London, London, United Kingdom
logging and alerting, DynamoDB for database management, and AWS Lambda for serverless compute tasks related to project workflows. Implement best practices for environment stability, performance tuning, and security compliance. Produce detailed technical documentation, status reports, and issue logs for ongoing support and knowledge sharing. Communicate effectively with cross ...

Senior Developer / Architect

Hiring Organisation
Young's Employment Services Ltd
Location
West London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£95,000
DAPR pub/sub, saga orchestration, transactional outbox DDD fundamentals bounded contexts, aggregates, domain events, CQRS SQL Server schema design, EF Core migrations, query performance tuning This role is perfect for those who thrive in small, flat-structured teams and collaborative environments where every contribution makes a difference. ...

Software Developer

Hiring Organisation
Davies Talent Solutions
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £70,000 per annum
week. Desirable: Experience with Inprotech or iManage. Understanding of ISO27001, secure coding, and general data security principles. SQL Server development (stored procedures, triggers, performance tuning). Experience with SSRS reporting. Exposure to IIS, HTML, CSS, or web-based applications. Profiles Not Considered: To reflect the hiring manager ...

AD Engineer JD L2

Hiring Organisation
Stackstudio Digital Ltd
Location
United Kingdom
Employment Type
Permanent
Sites & Services, replication, and domain controller health. Support AD schema changes, functional level upgrades, and domain controller deployments/migrations. Perform AD health checks, performance tuning, and issue remediation. Azure AD/Entra ID Identity Management Manage hybrid identity configurations, AAD Connect, cloud sync, and SSO integrations. Implement ...

Senior RPG Developer

Hiring Organisation
Moorepay
Location
Pendlebury, Swinton, Manchester, Lancashire, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
CLLE. Skilled in using embedded SQL within RPG. Solid understanding of DB2/400 database design and DDS. Experience in system troubleshooting, debugging, and performance tuning. Familiarity with change management tools (e.g., TurnOver, Aldon). Awareness of compliance, security, and data governance standards. Knowledge of APIs (REST/SOAP ...

VMware Expert CGEMJP

Hiring Organisation
Experis IT
Location
Warwick, Warwickshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP 300 - 488 Daily
large-scale VMware environments, including vMotion setup and optimization. Provide hands-on technical expertise in HPE compute and storage platforms, including installation, configuration, and performance tuning. Collaborate with architecture and engineering teams to ensure infrastructure designs meet operational and business requirements. Troubleshoot and resolve complex infrastructure issues in Real ...

Managing SOC Engineer - MOD DV - Inside IR35

Hiring Organisation
Sanderson
Location
Hemel Hempstead, Hertfordshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £800 per day
servers. Elastic (Elastic Stack/Elastic Security): Hands-on with index lifecycle management (ILM), ingest pipelines, ECS mapping, transforms, and enrichment. Experience designing and tuning detection rules (KQL, EQL), response actions, case workflows, and Elastic Security posture features. Skilled in Fleet/Agent deployment, data stream design, and performance tuning at scale. Strong client management and relationship building experience SIEM experience with Splunk/Elastic Excellent analytical and problem-solving skills coupled with ability to assess complex situations, identify risks, and recommend effective solutions Proven hands-on experience operating Elastic Stack/Elastic Security and Splunk Enterprise ...

Data Architect - Bristol - Hybrid Opportunity

Hiring Organisation
Hays Specialist Recruitment Limited
Location
Bristol, Avon, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £88,000 per annum
Gold layer data products are fit for purpose for analytics, pricing, AI and ML model consumption.Optimise data pipelines for efficiency, cost-effectiveness and high performance, leveraging Databricks for big data processing and machine learning. Governance & Standards Act as the architectural authority for the data estate - reviewing designs, enforcing standards … define and implement a data strategy aligned with business objectives. Proven track record of delivering enterprise-scale data solutions with a focus on performance, security and scalability. Experience in regulated financial services, ensuring compliance with industry standards. Deep expertise in data modelling - conceptual, logical and physical. Data warehousing ...

Data Architect - Bristol - Hybrid Opportunity

Hiring Organisation
Hays
Location
Bristol, England, United Kingdom
layer data products are fit for purpose for analytics, pricing, AI and ML model consumption. Optimise data pipelines for efficiency, cost-effectiveness and high performance, leveraging Databricks for big data processing and machine learning. Governance & Standards Act as the architectural authority for the data estate - reviewing designs, enforcing standards … define and implement a data strategy aligned with business objectives. Proven track record of delivering enterprise-scale data solutions with a focus on performance, security and scalability. Experience in regulated financial services, ensuring compliance with industry standards. Deep expertise in data modelling - conceptual, logical and physical. Data warehousing ...

CRIMS Technical Support Analyst - Edinburgh, London

Hiring Organisation
Aberdeen
Location
United Kingdom, UK
across global regions (APAC, EMEA, AMRS). You’ll work at the intersection of technology, investment products and business operations supporting the delivery and performance of investment solutions. Key Responsibilities Provide Level 2 Technical support for front-office investment platforms, ensuring timely resolution of incidents and service requests. Deliver … real-time support for the investment management system (Charles River IMS/CRIMS) and related OMS components. Monitor system health and performance , proactively identify issues, and implement fixes to maintain platform stability. Perform alert handling, log analysis, and performance tuning of the platform. Troubleshoot OMS connectivity issues ...

Cloud / PreSales Engineer - (AWS, Docker) - UK Remote

Hiring Organisation
Mayflower Recruitment Ltd
Location
United Kingdom
distributed containerized services using Docker and Docker Swarm. Respond to and resolve incidents, working to minimize downtime and ensure high system availability. Investigate system performance, log anomalies, and service issues, escalating when appropriate. Collaborate with DevOps and software engineering teams to implement improvements and automation. Maintain thorough documentation … system configurations, processes, and known issues. Assist in system upgrades, patching, and performance tuning. Support security compliance and auditing activities where applicable. Participate in an on-call support rotation. Required Skills & Experience: 2+ years of experience in a technical support, DevOps, or infrastructure engineering role. Strong hands-on experience ...

Cloud / PreSales Engineer - (AWS, Docker) - UK Remote

Hiring Organisation
Mayflower Recruitment Ltd
Location
City of London, London, United Kingdom
distributed containerized services using Docker and Docker Swarm. Respond to and resolve incidents, working to minimize downtime and ensure high system availability. Investigate system performance, log anomalies, and service issues, escalating when appropriate. Collaborate with DevOps and software engineering teams to implement improvements and automation. Maintain thorough documentation … system configurations, processes, and known issues. Assist in system upgrades, patching, and performance tuning. Support security compliance and auditing activities where applicable. Participate in an on-call support rotation. Required Skills & Experience: 2+ years of experience in a technical support, DevOps, or infrastructure engineering role. Strong hands-on experience ...

Cloud / PreSales Engineer - (AWS, Docker) - UK Remote

Hiring Organisation
Mayflower Recruitment Ltd
Location
Leeds, West Yorkshire, United Kingdom
distributed containerized services using Docker and Docker Swarm. Respond to and resolve incidents, working to minimize downtime and ensure high system availability. Investigate system performance, log anomalies, and service issues, escalating when appropriate. Collaborate with DevOps and software engineering teams to implement improvements and automation. Maintain thorough documentation … system configurations, processes, and known issues. Assist in system upgrades, patching, and performance tuning. Support security compliance and auditing activities where applicable. Participate in an on-call support rotation. Required Skills & Experience: 2+ years of experience in a technical support, DevOps, or infrastructure engineering role. Strong hands-on experience ...