Contract 'Performance Tuning' Job Vacancies

1 to 25 of 26 Contract Performance Tuning Jobs

BI Developer

London, South East, England, United Kingdom
Harnham - Data & Analytics Recruitment
best practices. Produce full technical documentation and user handover materials. Skills & Experience Proven experience designing SQL-based data models and warehouses . Strong SQL development , ETL/ELT , and performance tuning skills. Data integration expertise with Salesforce , NetSuite , and HR systems (API/ETL). Advanced Power BI (Power Query M, DAX) Proven experience designing SQL-based data … models and warehouses Strong SQL development , ETL/ELT , and performance tuning skills. Understanding of SaaS metrics (ARR, MRR, churn, NRR, CAC, revenue recognition). Excellent documentation, communication, and stakeholder engagement skills. Outcomes (3 Months) Operational Finance Data Cube integrating all core data sources. Automated Power BI dashboards for executive reporting. Documented, repeatable integration and refresh processes . More ❯
Employment Type: Contractor
Rate: £400 - £450 per day
Posted:

Data Engineer

London, South East, England, United Kingdom
Hybrid / WFH Options
Robert Half
and supporting the team's move toward predictive analytics and ML Ops workflows. Role The Data Engineer will own and assess the Snowflake platform, proposing and executing optimisation around performance, cost, scalability, and architecture improvements. Lead DBT development and maintenance, with emphasis on test frameworks, transformation efficiency, and eliminating redundant or resource-heavy flows (e.g., excessive temp table usage … . Design, implement, and maintain CI/CD pipelines to automate reliable deployment of data transformations. Provide deep insight into Snowflake infrastructure, including cost and pricing models, performance tuning, and resource governance. Support ML Ops/predictive analytics operationalisation - managing updates, performance monitoring, and change rollout rather than building models from scratch. Be a technical mentor and … environments. Advanced experience with DBT, including testing, modular modelling, and optimisation. Track record in building or maintaining CI/CD pipelines for data workflows. Strong familiarity with Snowflake infrastructure, performance tuning, and cost modelling. Excellent communication skills and ability to mentor or teach other engineers. Desirable/Nice to Have Exposure to ML Ops (particularly around operationalising models More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

Senior Java Developer Contract Dublin 6-18 Months

Dublin, City of Dublin, Republic of Ireland
Adecco
contract basis 6 months initially rolling up to potentiality 18-20 months. My client is looking for a senior developer to perform hands-on development of high throughput, high performance, and data intensive platforms, as well as be an active contributor to ongoing efforts to evolve their architecture. You will partner with multiple Information Technology teams to design and … and object-oriented design. Strong skills in multi-threading, collections framework, JDBC and knowledge of Java profiling tools. Proficiency with frameworks just as Spring/Spring Boot, Knowledge of performance tuning data intensive applications. Expertise in performance profiling, ability to identify performance improvements and memory optimisation.Strong coding, debugging, and analytical skills, You will have strong knowledge More ❯
Employment Type: Contract
Rate: £474 - £561/day ltd company
Posted:

Quantitative Developer

East London, London, England, United Kingdom
Hybrid / WFH Options
Robert Half
models, and tools supporting trading, pricing, and risk management. Collaborate with quantitative analysts, data scientists, and traders to implement and optimise models in production environments. Build and enhance high-performance systems for data processing, pricing, and simulation. Translate complex mathematical models into robust, efficient, and maintainable code. Ensure system reliability, scalability, and low latency across all components. Participate in … model validation, performance tuning, and version control processes. Stay up to date with advances in quantitative finance, computational techniques, and emerging technologies. Profile Strong programming experience in Python, C++, or C#; knowledge of NumPy, Pandas, and QuantLib advantageous. Solid understanding of mathematics, statistics, and numerical methods - including stochastic calculus, Monte Carlo simulation, and optimisation. Familiarity with derivatives pricing … risk metrics, and financial instruments across asset classes. Experience building low-latency systems and optimising performance for computational workloads. Proficient in working with SQL and managing large financial datasets. Knowledge of cloud platforms (Azure, AWS) and DevOps tools (Git, CI/CD) desirable. Excellent problem-solving and analytical skills, with a keen attention to detail. Strong communication and collaboration More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

Ab Initio Developer

Northampton, Northamptonshire, United Kingdom
Experis
maintain ETL solutions using Ab Initio (Graphical Development Environment, Co>Operating System, EME, and Conduct>It). Integrate data from multiple heterogeneous sources into unified, high-quality datasets. Perform performance tuning, debugging, and optimization of existing ETL processes. Implement data quality, validation, and error-handling frameworks. Collaborate with architects and DBAs on data modeling, pipeline design, and environment … warehouse concepts . Familiarity with big data ecosystems (Hadoop, Hive, Spark) and cloud platforms (AWS, Azure, GCP) is a plus. Proven ability to troubleshoot complex ETL jobs and resolve performance issues. Experience working with large-scale datasets and enterprise data environments. Experience in the banking, financial services domain preferred. Exposure to CI/CD pipelines and DevOps tools for More ❯
Employment Type: Contract
Rate: £420 - £550/day Market Rate
Posted:

Senior Data Engineer - £450/day Outside - 6 Months Ext

London, South East, England, United Kingdom
Hybrid / WFH Options
Involved Solutions
programme, working on high-impact projects that enable data-driven decision-making. Responsibilities for the Senior Data Engineer: Design, build, and maintain scalable data pipelines and architectures, ensuring reliability, performance, and best-in-class engineering standards Leverage Databricks, Spark, and modern cloud platforms (Azure/AWS) to deliver clean, high-quality data for analytics and operational insights Lead by … improve existing systems, introducing new technologies and methodologies that enhance efficiency, scalability, and cost optimisation Essential Skills for the Senior Data Engineer: Proficient with Databricks and Apache Spark, including performance tuning and advanced concepts such as Delta Lake and streaming Strong programming skills in Python with experience in software engineering principles, version control, unit testing and CI/ More ❯
Employment Type: Contractor
Rate: £375 - £450 per day
Posted:

Senior Data Engineer

City of London, London, United Kingdom
Adecco
at Working level: Advanced SQL proficiency : expertise in writing complex, highly-performant SQL queries, including common table expressions (CTEs), window functions, and complex joins. Experience with query optimization and performance tuning on relational databases like PostgreSQL, MySQL, or similar Cloud data ecosystem (AWS) : hands-on experience with core AWS data services. Key services include: S3 for data lake More ❯
Employment Type: Contract
Rate: £550 - £600/day
Posted:

Senior Data Engineer

London, South East, England, United Kingdom
Adecco
at Working level: Advanced SQL proficiency : expertise in writing complex, highly-performant SQL queries, including common table expressions (CTEs), window functions, and complex joins. Experience with query optimization and performance tuning on relational databases like PostgreSQL, MySQL, or similar Cloud data ecosystem (AWS) : hands-on experience with core AWS data services. Key services include: S3 for data lake More ❯
Employment Type: Contractor
Rate: £550 - £600 per day
Posted:

DataPower Developer

London, South East, England, United Kingdom
Lorien
our UK banking client team on an initial 6 month contract. The successful candidate will be responsible for diagnosing, troubleshooting, and resolving environment-related issues, ensuring high availability and performance of the project infrastructure (in datapower and AWS). This role requires a hands-on technical expert with a strong background in DataPower development, complemented by knowledge of AWS … cloud resources including CloudWatch for 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-functional teams including developers, infrastructure More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

Data Engineer

London, South East, England, United Kingdom
Hybrid / WFH Options
Robert Half
their data requirements and support their work.* Collect, process, and transform datasets from various sources, ensuring data quality and integrity.* Optimise and maintain the organisation's Snowflake infrastructure, providing performance tuning, enhancements, and regular "MOT" checks.* Develop and maintain DBT pipelines, mainly on Snowflake, to enable efficient transformation and modelling of data.* Implement efficient data models and schemes More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

DevOps Engineer

Edinburgh, Midlothian, Scotland, United Kingdom
Lorien
Optimise infrastructure with Karpenter for autoscaling and cost efficiency. Ensure robust AWS networking (VPC, Transit Gateway, PrivateLink, Route 53) and enforce security best practices. Drive incident response, monitoring, and performance tuning. Key Technologies: AWS (EKS, Fargate, EC2, S3), Terraform, CloudFormation, GitLab, ArgoCD, Docker, Kubernetes, Helm, Cassandra, OTel, Grafana, Splunk, Karpenter, Python, Bash. Desirable: Experience with Google Cloud Platform (GCP More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

Data Engineer

London, South East, England, United Kingdom
Robert Half
maintain scalable data pipelines to support manufacturing, quality, and supply chain data workflows. Implement and manage data transformation models using dbt to standardise and validate datasets. Optimise and monitor performance of Snowflake data warehouse environments. Collaborate with cross-functional teams (Data Scientists, Quality, Manufacturing, IT) to define data requirements and deliver reliable data solutions. Develop and maintain ETL/… or related field. 3-5+ years of experience as a Data Engineer, ideally in a pharmaceutical, biotech, or regulated manufacturing environment. Strong hands-on experience with: Snowflake (architecture, performance tuning, cost optimisation) DBT (model development, testing, documentation, deployment) SQL (advanced query optimisation and debugging) Experience with data integration and orchestration tools (Airflow, Dagster, Prefect, or similar). More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

SQL DBA

Leeds, West Yorkshire, England, United Kingdom
Hybrid / WFH Options
Tenth Revolution Group
person IT hub in Romania, though recent offshore support has proven unreliable. Project Overview The business is undertaking a comprehensive health check of its IT systems to ensure stability, performance, and readiness for future scaling. This includes reviewing SQL Server environments, identifying risks, and recommending upgrades or optimisations. The role is critical to maintaining operational continuity and supporting future … transformation. Key Responsibilities Conduct a full health check of existing SQL Server databases and infrastructure Review and optimise database performance, indexing, and query efficiency Identify and resolve potential risks or vulnerabilities in the current setup Recommend and implement upgrades or patches where necessary Ensure high availability and disaster recovery configurations are in place Document findings and provide clear recommendations … offshore teams (Romania) Support knowledge transfer and handover for future permanent hire Essential Skills & Experience Proven experience as a SQL Server DBA in enterprise environments Strong understanding of database performance tuning and optimisation Experience with backup/recovery strategies and disaster recovery planning Ability to conduct system audits and produce actionable recommendations Comfortable working independently and remotely Excellent More ❯
Employment Type: Contractor
Rate: £465 per day
Posted:

Senior Software Engineer

West London, London, United Kingdom
Hybrid / WFH Options
Aimtech Recruitment Ltd
a live production environment. This is a hands-on engineering role, suited to someone who can move beyond theory designing, implementing, and optimising real-world solutions that enhance the performance, scalability, and maintainability of our data layer. Youll join a collaborative engineering team and act as a subject-matter expert in MongoDB usage, schema design, and data interaction patterns … within Django applications. What Youll Do Design and implement solutions that improve how Django and MongoDB interoperate. Review and refactor existing data models, ensuring performance and scalability. Work closely with backend teams to guide best practices around schema design, indexing, and query optimisation. Educate and mentor engineers on effective MongoDB usage patterns and integration strategies. Help evolve internal tooling … development. What Were Looking For Proven experience as a Senior Software Engineer with a strong focus on backend systems and database design. Advanced MongoDB knowledge schema design, aggregation pipelines, performance tuning, replication, and indexing strategies. Strong experience with Django and MongoEngine , including hands-on integration work. Ability to architect, build, and deliver solutions not just advise or design More ❯
Employment Type: Contract, Work From Home
Rate: From £550 to £600 per day
Posted:

SAP Basis Consultant

Nationwide, United Kingdom
Techniche Global Ltd
Technical Lead and SAP Basis Team Lead as required to plan upgrades that align with SAP technology advances. Lead SAP technical initiatives as instructed by SAP Technical Lead. Perform performance reviews of existing systems and present recommendations with associated implementation plans. Work within the SAP Basis team to provide appropriate response in resolving SAP production environment issues. To ensure … Major Tasks and Activities: The role requires a Senior SAP Basis Contractor with a minimum of 5 years’ experience who will be accountable for following activities amongst others: System performance tuning and availability. Utilizing Solman 7.2 and CALM to improve operational excellence. Provide Basis support and guidance on Projects as applicable. Carrying out new system installations and associated More ❯
Employment Type: Contract
Rate: £600 - £700/annum £600-700 per day UMB
Posted:

Datapower Developer/Data Developer - Inside IR35 - Hybrid Working

London, United Kingdom
Hybrid / WFH Options
Europa Search
cloud resources including CloudWatch for 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-functional teams including developers, infrastructure More ❯
Employment Type: Contract
Rate: GBP 400 Annual
Posted:

Datapower Developer

London, United Kingdom
Stackstudio Digital Ltd
cloud resources including CloudWatch for 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-functional teams including developers, infrastructure More ❯
Employment Type: Contract
Rate: From £400 to £420 per day
Posted:

Cisco Applications Admin x 2 - Webex

Reading, Berkshire, United Kingdom
Hybrid / WFH Options
CBSbutler Holdings Limited trading as CBSbutler
Meetings platforms . You'll be the subject matter expert for unified collaboration services, ensuring seamless, secure communication across the organisation. From user administration and troubleshooting to integrations and performance tuning, you'll keep collaboration running at enterprise scale. Key Responsibilities: Administer, configure, and maintain Cisco Webex and Cisco Meetings environments. Manage user accounts, permissions, licensing, and policies. … Monitor system performance and availability - troubleshoot and resolve incidents quickly. Support upgrades, patching, and integrations with other collaboration tools. Work with security and networking teams to enforce compliance and security standards. Develop and maintain documentation, best practices, and operational procedures. Act as an escalation point for collaboration-related support issues. Essential Skills & Experience: Proven experience administering Cisco Webex and More ❯
Employment Type: Contract
Rate: £550 - £600/day
Posted:

Cisco Applications Admin x 2 - Webex

Reading, Oxfordshire, United Kingdom
Hybrid / WFH Options
CBSbutler Holdings Limited trading as CBSbutler
Meetings platforms . You'll be the subject matter expert for unified collaboration services, ensuring seamless, secure communication across the organisation. From user administration and troubleshooting to integrations and performance tuning, you'll keep collaboration running at enterprise scale. Key Responsibilities: Administer, configure, and maintain Cisco Webex and Cisco Meetings environments. Manage user accounts, permissions, licensing, and policies. … Monitor system performance and availability - troubleshoot and resolve incidents quickly. Support upgrades, patching, and integrations with other collaboration tools. Work with security and networking teams to enforce compliance and security standards. Develop and maintain documentation, best practices, and operational procedures. Act as an escalation point for collaboration-related support issues. Essential Skills & Experience: Proven experience administering Cisco Webex and More ❯
Employment Type: Contract
Rate: GBP 550 - 600 Daily
Posted:

DV Cleared IP Network Engineer - Outside IR35 - 6 months - Farnborough OR Bristol

Bristol, United Kingdom
Hamilton Barnes
DV Cleared IP Network Engineer - 6 months - Farnborough OR Bristol - Outside IR35 Our close client is seeking a DV Cleared IP Network Engineer to deliver secure, resilient, and high-performance IP-based network solutions across Defence and Government environments. This hands-on role focuses on implementing, configuring, and supporting complex multi-vendor network and security infrastructures in mission-critical … Level Designs (HLD) into deployable, compliant solutions. Perform network integration, testing, and validation activities. Troubleshoot complex routing, switching, and Firewall issues in high-security environments. Support ongoing network optimisation, performance tuning, and upgrades. Collaborate with cross-functional security, infrastructure, and operations teams to ensure service reliability and compliance. Essential Skills & Experience: Current DV clearance (mandatory). Strong practical More ❯
Employment Type: Contract
Rate: GBP Annual
Posted:

SAP ABAP Developer - DV Cleared

Aldermaston, Berkshire, Aldermaston Wharf, United Kingdom
CBSbutler Holdings Limited trading as CBSbutler
Gateway oData Services, CDS Views, ABAP for HANA, RFC Function Modules, Data dictionary object, BADI, BAPI, User-Exits, Web Services, Smart forms, client & server Proxy, ALV Report, Classical Reports, Performance tuning & Transformations Experience of SAP PO/PI desirable Ability to take responsibility for the design activities on projects, the production of design specifications and the review of More ❯
Employment Type: Contract
Rate: £650 - £730/day
Posted:

VMware/Omnissa Horizon VDI Consultant

Hampshire, United Kingdom
Hybrid / WFH Options
Perfect People Recruitment Solutions Ltd
regions. Responsibilities: Horizon migration planning, execution, and optimisation Master image creation, pool configuration, patching User profile, persona and application delivery: App Volumes Dynamic Environment Manager (DEM) Horizon Cloud integration Performance tuning and troubleshooting Multi-region alignment and user experience optimisation Working alongside Nutanix platform engineers for platform readiness Essential Experience: Proven delivery of Horizon production environments at scale …/Cohesity/Rubrik/ICMU DR beneficial) Project Highlights: Global DaaS migration to Nutanix HPE HCI Enterprise grade, multi-region deployment Focus on scalability, resilience, and improved user performance VMware/Omnissa Horizon VDI Consultant Location: Hybrid: Hampshire and remote Engagement: Outside IR35 Duration: Initial 6 months Start: ASAP More ❯
Employment Type: Contract
Rate: GBP Annual
Posted:

Databricks Architect - SC Cleared

London, United Kingdom
SR2 - Socially Responsible Recruitment
Databricks-based data platforms in cloud environments (AWS or Azure). Define migration strategies from Legacy data environments to Databricks. Design data ingestion, transformation, and orchestration workflows to meet performance and security standards. Provide technical leadership on data lake, data warehouse, and streaming architecture best practices. Collaborate with Enterprise Architects, Data Engineers, and Security teams to align solutions with … cloud and governance standards. Optimise performance, cost, and scalability of Databricks clusters and data pipelines. Contribute to architecture documentation, patterns, and reference models for reuse across the programme. Essential Skills & Experience Proven experience as a Data/Solution Architect specialising in Databricks (AWS preferred; Azure considered). Demonstrable experience in end-to-end implementation or migration to Databricks. Deep … Lake). Strong experience with data modelling, ETL/ELT design , and orchestration tools (Airflow, DBT, or similar). Proficiency in Python, SQL, and Spark for data transformation and performance tuning. Experience with CI/CD pipelines and Infrastructure as Code (Terraform, CloudFormation, or Bicep). Understanding of data security, governance, and compliance frameworks within regulated or government environments. More ❯
Employment Type: Contract
Rate: GBP 550 - 600 Daily
Posted:

Oracle AI Technical Consultant

London, United Kingdom
Morson Edge
associated AI frameworks. Collaborate with business stakeholders to identify and deliver impactful AI-enabled business solutions. Provide technical leadership and best-practice guidance on Oracle AI tools, integration, and performance optimisation. Drive enhancements, integrations, and continuous improvement across the Oracle ecosystem. Produce technical documentation, solution designs, and training materials for internal teams. Partner with data, infrastructure, and integration teams … APEX , VBCS , SQL/PLSQL , and related technologies. Experience designing and integrating AI-based solutions in SaaS/PaaS/IaaS environments. Strong knowledge of integration architecture, security, and performance tuning. Familiarity with Azure DevOps or similar CI/CD frameworks. Excellent communication, documentation, and stakeholder engagement skills. Preferred Qualifications 10+ years of hands-on experience across Oracle development More ❯
Employment Type: Contract
Rate: £600 per day + None
Posted:

Tech Lead, Linux, AIX, VMware, Windows, Hybrid

London, United Kingdom
Hybrid / WFH Options
Sanderson Recruitment
platforms e.g. Linux, AIX, Windows, VMware. Ensure compliance with patching, config standards and security. Manage End-of-Life (EoX) planning, upgrades, migrations etc. Oversee platform monitoring including capacity and performance management. Implement standard operating procedures to ensure consistency across computing services. Collaborate with engineering and architecture teams to influence operational designs. Drive automation of routine operational tasks using tools … e.g. Ansible, SCCM, SCOM (or similar). Provide reporting on platform performance, incidents & compliance. Manage vendor relationships. Contribute to audits, IT risk assessments and compliance reporting. Identify opportunities for continuous improvement. Skills & experience required: Technical knowledge of Linux, AIX, Windows Server, VMware, and Red Hat Demonstrated expertise in patch management Demonstrated expertise in configuration compliance Demonstrated expertise in performance More ❯
Employment Type: Contract, Work From Home
Rate: £600 - £750 per day
Posted:
Performance Tuning
10th Percentile
£350
25th Percentile
£424
Median
£500
75th Percentile
£620
90th Percentile
£715