151 to 175 of 211 Performance Tuning Jobs in the UK

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

Hiring Organisation
Mayflower Recruitment Ltd
Location
Bolton, Greater Manchester, 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 ...

C++ Software Engineer

Hiring Organisation
Durlston Partners
Location
City of London, London, United Kingdom
London or has the right to work in London. You will be part of a highly collaborative, low-ego engineering culture that prioritises performance, innovation, and impact. Working alongside some of the brightest minds in quantitative trading and systems engineering, you will build and optimise ultra-low latency, high … throughput systems that operate at scale. Key Responsibilities: Design and implement high-performance C++ systems for low-latency trading Optimise existing code for speed and reliability under production workloads Collaborate closely with traders, researchers, and fellow engineers to develop scalable infrastructure Work across the full software lifecycle ...

Kognito DB Developer

Hiring Organisation
Stackstudio Digital Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
From £550 to £600 per day
with data architects and analysts to deliver robust, scalable solutions while ensuring data integrity, security, and compliance across all processes. You continuously monitor system performance, identifying opportunities to enhance speed and scalability, and provide thorough documentation and technical support to stakeholders. Additionally, you participate in design reviews, offering informed … virtualization strategies for efficient access. Collaborate with data architects and analysts to deliver solutions. Ensure data integrity, security, and compliance. Monitor and improve system performance and scalability. Document processes and provide technical support. Participate in design reviews and provide recommendations. Your Profile Essential Skills/Knowledge/Experience ...

Linux Systems Administrator Engineer Banking/Trading Fintech

Hiring Organisation
Stream Search Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£65,000
+ Office) £65K + package + bonus A leading Financial Exchange is seeking a Linux Systems Administrator Engineer to ensure the resilience and performance of critical trading platforms. What youll do: Provide 1st3rd line Linux support across virtual & on-prem systems Monitor live platforms, troubleshoot issues & manage alerts Maintain … collaborate across teams Mentor junior engineers & drive process improvements What youll bring: Strong Linux experience (RedHat/Rocky preferred) Solid troubleshooting, performance tuning & security knowledge Experience with monitoring tools (Nagios/SolarWinds) Bash scripting & GitLab experience AWS/SQL knowledge (nice to have) This is a senior, hands ...

Linux Systems Engineer - HPC

Hiring Organisation
STK Recruitment
Location
Swansea, Neath Port Talbot, Wales, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£465 per day - Ltd Company / Outside IR35
initially Pay Frequency: Weekly Start Date: ASAP Overview We are seeking an experienced HPC Linux Systems Engineer to deploy, configure, optimise and support high-performance computing (HPC) environments. This includes large-scale Linux clusters, GPU-accelerated systems, and associated storage, networking, and authentication infrastructure. Although this role is hybrid … Kickstart, Ansible/Puppet) Install, configure, and optimise HPC schedulers (e.g. Slurm) and MPI environments Deploy and manage GPU (NVIDIA/CUDA) and high-performance storage solutions Monitor, benchmark, and tune system performance across compute, network, and storage Implement authentication, security controls, and system hardening for multi-user ...

Data Architect

Hiring Organisation
Hirexa Solutions UK
Location
Hemel Hempstead, Hertfordshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £450 per day
architect, and optimize scalable enterprise data platforms. The role involves defining data platform architecture, governance standards, and scalable data transformation frameworks, while ensuring high performance, security, and cost efficiency. The architect will provide technical leadership to data engineering and analytics teams and ensure the platform supports enterprise reporting, advanced … modelling standards including dimensional modelling, star schema, and enterprise data models. Lead architecture reviews and solution design discussions for new data initiatives. Optimize Snowflake performance, workload management, and cost governance. Establish data governance frameworks including access control, data security, and compliance standards. Design and support AI/ML-ready ...

Contract Solution Architects (Commodities)

Hiring Organisation
X4 Technology
Location
City of London, London, United Kingdom
back trading systems. The client is hiring 4x Solution Architects across key workstreams: Endur Architect – deep Endur expertise (v26 preferred), covering architecture, grid setup, performance tuning, data segregation, scaling and integrations Integration Architect – designing a scalable event-driven ecosystem around Endur, leveraging Kafka and pub/sub patterns … functionality out of Endur into modern cloud-native services Database Architect – leading large-scale migration from Oracle (15TB+) to Azure SQL Server, covering architecture, performance, and long-term scalability Requirements for the Solution Architects (Commodities) These are hands-on architecture roles , not design-only positions. You will be expected ...

Delphi Developer

Hiring Organisation
Octad Recruitment Consultants (Octad Ltd )
Location
Wickford, Essex, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
term system stability, this role will suit you perfectly. Key Responsibilities Maintain, support, and enhance existing Delphi enterprise applications. Diagnose and resolve complex defects, performance issues, and system bottlenecks. Work closely with business users to translate requirements into technical solutions. Produce clear documentation for updates, fixes, and new features. … experience. Strong experience with complex, data-driven applications. Proven background maintaining or upgrading legacy systems. Experience with visually inherited UIs. Strong debugging, optimisation, and performance-tuning skills. Experience working within Agile, Waterfall, or hybrid SDLC environments. Familiarity with version control (Git, SVN, etc.). Experience collaborating with ...

Database Administrator

Hiring Organisation
Logistex
Location
Kettering, North Northamptonshire, Northamptonshire, United Kingdom
Employment Type
Permanent
smoothly? If so, you could be our next Database Administrator! What is in it for you? Become a member of an Employee-owned trust Performance bonus Cycle to work scheme Option to buy additional leave Private medical insurance What will you be doing? Manage, maintain and optimize Postgres … Oracle databases Perform upgrades, patches, backups and recovery testing Monitor performance and troubleshoot issues proactively Ensure database security, compliance and documentation Support CI/CD, DevOps and cross-functional teams What are we looking for? Proven experience as a DBA or similar role Strong knowledge of Postgres and Oracle ...

Software Engineer

Hiring Organisation
MBDA UK
Location
Stevenage, Hertfordshire, United Kingdom
Employment Type
Permanent
Salary
£64000/annum
BPSS), which are managed by the MBDA Personnel Security Team. What we can offer you: Company bonus : Up to £2,500 (based on company performance and will vary year to year) Pension : maximum total (employer and employee) contribution of up to 14% Overtime: opportunity for paid overtime Flexi Leave … development environment Working with CI/CD pipelines including writing of Automated Test Scripts A willingness to build deep system architecture understanding Experience of performance tuning and root-cause analysis. Desirable: Prior experience with the Ada programming language is desirable Our company: Peace is not a given, Freedom ...

Snowflake Engineers

Hiring Organisation
Fuel Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 550 Daily
working with their insurance client and need experience of building scalable data pipelines and data models and have worked on data transformation, integration and performance tuning previously. Snowflake and SQL are non negotiable and it would be good to have experience with AWS, Data Vault methodology as well ...

Linux Engineer

Hiring Organisation
Morson Edge
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Contract
working with: Linux & Red Hat Enterprise Linux (RHEL) - Administration of RHEL 7/8/9, including installation, patching, upgrades, and lifecycle management - System performance tuning, troubleshooting, and root cause analysis - User, group, permissions, and SELinux management - Filesystem and storage management (LVM, XFS, ext4, NFS) On Prem Infrastructure ...

Senior Infrastructure Engineer / Architect

Hiring Organisation
IT Talent Solutions
Location
Milton Keynes, Buckinghamshire, United Kingdom
Employment Type
Permanent
Salary
£50000 - £70000/annum Excellent benefits
environments across Azure, VMware , and on-prem systems Improve and maintain LAN/WAN, networking, and core security infrastructure Provide expert-level troubleshooting and performance tuning Collaborate with cross-functional teams and senior stakeholders Ensure robust security, disaster recovery, and compliance standards YOU 5+ years of experience ...

Senior Infrastructure Engineer

Hiring Organisation
IT Talent Solutions
Location
Milton Keynes, Buckinghamshire, United Kingdom
Employment Type
Permanent
Salary
£55000 - £70000/annum Excellent benefits
environments across Azure, VMware , and on-prem systems Improve and maintain LAN/WAN, networking, and core security infrastructure Provide expert-level troubleshooting and performance tuning Collaborate with cross-functional teams and senior stakeholders Ensure robust security, disaster recovery, and compliance standards YOU 5+ years of experience ...

Data Migration Engineer

Hiring Organisation
JAM Recruitment Ltd
Location
Rochester, Kent, South East, United Kingdom
Employment Type
Contract
Contract Rate
£41.00 - £42.11 per hour
Skills: Strong experience with Oracle SQL and PL/SQL Solid understanding of Oracle ERP database architecture Experience with joins, subqueries, analytic functions, and performance tuning of data extractions Knowledge of ETL techniques and methods Experience in Oracle 11i data structures or Oracle Cloud environments Previous experience ...

Azure Platform Engineer

Hiring Organisation
Hays
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600.0 - £690.0 per day + up to £690pd (Inside IR35)
integrating mobile applications with cloud-native backends Knowledge of CI/CD pipelines for containerized applications Familiarity with zero-trust architecture principles Background in performance tuning or cost-optimised cloud design If you're interested in this role, click 'apply now' to forward an up-to-date copy ...

Integration Engineer

Hiring Organisation
JAM Recruitment Ltd
Location
Rochester, Kent, South East, United Kingdom
Employment Type
Contract
Contract Rate
£40.00 - £42.00 per hour
Solid understanding of Oracle ERP database architecture and/or Oracle Cloud environments (EPM/Fusion) Experience with joins, subqueries, analytic functions, and performance tuning of data extractions Knowledge of ETL techniques and methods Powershell or other scripting/automation tools Experience in Oracle 11i data structures ...

Senior Developer FX Options Risk

Hiring Organisation
Reed
Location
Central London, London, England, United Kingdom
Employment Type
Contractor
Contract Rate
£900 - £925 per day, Inc benefits
Real-time risk visualisation, scenario tools, trader workflows. C# Backend Services (30%): Pricing requests, risk aggregation, workflow orchestration. PostgreSQL (20%): Schema design, performance tuning, data modelling. Pricing Services/Quant Integration (30%): Interfacing with quant libraries, valuation logic, market data usage. The work includes small, fast-turnaround changes ...

Senior Unity Programmer (Localisation)

Hiring Organisation
Pixel Toys Ltd
Location
Leamington Spa, Warwickshire, West Midlands, United Kingdom
Employment Type
Permanent
system development. You will spend your time implementing and optimising game systems alongside Artists and Designers, while also diving deep into profiling and performance tuning to resolve critical bottlenecks. By creating thorough technical designs and conducting insightful code reviews, you will ensure our codebase remains stable, secure ...

Data Engineer (Big Data/ Hadoop/ Spark Dev)

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£550 - £700 per day
architecture to detailed technical design. Strong Spark development experience. Hands-on experience with Hadoop - configuring multi-node Hadoop clusters, including resource management, security, and performance tuning. Strong Big Data engineering background using Apache Airflow, Spark, dbt, Kafka, and Hadoop ecosystem tools. Knowledge of RDBMS systems (PostgreSQL, SQL Server ...

Rust Developer

Hiring Organisation
IntecSelect
Location
United Kingdom
Employment Type
Contract
Contract Rate
GBP 800 - 850 Daily
Contract | £850/day | Outside IR35 Role Overview: A leading technology-driven trading firm is looking for a Rust Developer to join their high-performance engineering team. You will play a key role in designing, building, and maintaining low-latency, mission-critical trading systems. The role offers the opportunity … This is a fast-paced, intellectually challenging environment where your work has a visible impact on the business. Key Responsibilities: Develop and maintain high-performance trading applications using Rust. Write clean, maintainable, and well-tested code. Collaborate closely with engineers, quants, and operations teams to deliver reliable solutions. Contribute ...

Rust Developer

Hiring Organisation
Intec Select Ltd
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 800 - 850 Daily
Contract 850/day Outside IR35 Role Overview: A leading technology-driven trading firm is looking for a Rust Developer to join their high-performance engineering team. You will play a key role in designing, building, and maintaining low-latency, mission-critical trading systems. The role offers the opportunity … This is a fast-paced, intellectually challenging environment where your work has a visible impact on the business. Key Responsibilities: Develop and maintain high-performance trading applications using Rust. Write clean, maintainable, and well-tested code. Collaborate closely with engineers, quants, and operations teams to deliver reliable solutions. Contribute ...

Rust Developer

Hiring Organisation
Intec Select Ltd
Location
Remote work, Bishopsgate, United Kingdom
Employment Type
Permanent
Salary
£800 - £850/day
Contract | £850/day | Outside IR35 Role Overview: A leading technology-driven trading firm is looking for a Rust Developer to join their high-performance engineering team. You will play a key role in designing, building, and maintaining low-latency, mission-critical trading systems. The role offers the opportunity … This is a fast-paced, intellectually challenging environment where your work has a visible impact on the business. Key Responsibilities: Develop and maintain high-performance trading applications using Rust. Write clean, maintainable, and well-tested code. Collaborate closely with engineers, quants, and operations teams to deliver reliable solutions. Contribute ...

Applications Operations Analyst

Hiring Organisation
Ryder Reid Legal
Location
City of London, London, United Kingdom
experienced Applications Operations Analyst to join its London office. This is a fantastic opportunity to play a key role in maintaining and improving the performance, security, and reliability of enterprise applications across a dynamic and fast-paced professional services environment. Reporting to the Manager of Applications Operations, the successful … also contributing to process improvement, documentation, and integration stability. The role involves close collaboration with infrastructure, security, and business teams to ensure seamless application performance and user experience. Key Responsibilities: Perform system maintenance, patching, and upgrades in line with change management procedures Monitor application health and performance, proactively ...

Senior KDB+ Developer

Hiring Organisation
Stackstudio Digital Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
London, UK (Hybrid) Job Type: Contract - Inside IR35 Role Overview We are seeking an experienced Senior KDB+ Developer to design, develop, and optimize high-performance data platforms built on kdb+. The ideal candidate will have deep expertise in kdb+ tick architecture, performance tuning at scale, and close ...