101 to 125 of 300 Performance Tuning Jobs in the UK

Data Principal

Hiring Organisation
Hackajob Ltd
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent
Your strategic mindset: Quality Advocate: You take personal pride in the integrity of your work. Beyond just fixing bugs, you champion quality assurance and performance tuning as a mindset, ensuring the data programs we build for our clients are robust, reliable, and respected. Industry Stewardship ...

Senior Java Engineer – Azure – Finance Domain – London

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
SpringBoot skills. Experience of developing and deploying on Unix or Linux. Hands‐on experience of using the Kafka ecosystem. Experience of profiling and performance tuning. Experience of Behaviour‐Driven and Test‐Driven development principles and skills. Experience of Public Cloud development. Desirable Skills Working in an Agile development team. ...

Senior Java Engineer (Kafka, Kubernetes, SpringBoot) – Banking

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Hands‐on SpringBoot skills. Experience developing and deploying on Unix or Linux. Hands‐on experience of using the Kafka ecosystem. Experience of profiling and performance tuning. Experience of Behaviour‐Driven and Test‐Driven development principles and skills. Experience of Public Cloud development. Soft Skills Ability to motivate those ...

Oracle Database Administrator (DBA)

Hiring Organisation
Flexible Solutionz
Location
Northwich, Cheshire, North West, United Kingdom
Employment Type
Permanent
Salary
£55,000
business-critical systems remain secure, resilient, and high performing. Working closely with development and infrastructure teams, youll be responsible for maintaining Oracle databases, optimising performance, and supporting ongoing technology improvements across the business. Key Responsibilities Administer and maintain Oracle database environments Monitor database health, performance, and availability Manage … backups, restores, migrations and disaster recovery Support database patching, upgrades, and maintenance Troubleshoot and resolve database performance issues Maintain Oracle Enterprise Manager and Oracle WebLogic environments Automate routine administration tasks where possible Ensure database security, compliance, and best practice Collaborate with IT teams to deliver reliable, high-quality services ...

Director of Software Engineering (UK)

Hiring Organisation
Jobleads-UK
Location
United Kingdom
Flosum , we are building the world's best software for the modern enterprise. Our team is passionate about crafting elegant, high-performance products that delight our customers and set a new bar for engineering excellence. We combine deep expertise in cloud-native development with a relentless focus on quality … This is a hands‐on leadership role for a technical architect at heart who can compress delivery schedules, drive developer velocity, and own the performance of the overall solution. You will be the single point of accountability for turning our roadmap into shipped software—on time, at quality ...

Data Engineer (Databricks)

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
solutions using Azure Databricks and Azure Data Factory Design and optimize data pipelines for processing large volumes of data (multi-million records) with high performance Participate in customer discussions, requirement analysis, and technical solution design Ensure code quality, performance tuning, and adherence to best practices throughout development … Azure Databricks development, including efficient handling of large datasets Strong working knowledge of Azure Data Factory for building complex ETL workflows Experience with performance optimization of data pipelines and distributed processing setups Proficiency in Scala development (hands‐on experience highly desirable) Solid understanding of Azure services relevant to data ...

Senior Java Developer - Fixed Income Algo Technology, VP

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
measurable impact on business outcomes. Job Responsibilities/Role Design and develop reusable algo trading platform components, with a strong focus on high performance and low latency. Collaborate directly with Traders, Quants, and Product Managers to understand business requirements and implement functional enhancements to the algo trading platform. Ensure … strong reliability, scalability, and performance of core algorithmic components. Work seamlessly with wider eTrading Teams and Production Support to maintain and enhance live trading systems. Adhere to stringent engineering standards, continuously striving for best‐in‐class solutions and practices. Qualifications Significant extensive hands‐on coding experience in core Java ...

Network Engineer (eDV)

Hiring Organisation
Oscar Associates (UK) Limited
Location
Cheltenham, Gloucestershire, South West, United Kingdom
Employment Type
Permanent
Salary
£80,000
across modern enterprise environments, supporting the design, implementation, and optimisation of critical network infrastructure. You'll play a key role in ensuring the availability, performance, and security of enterprise networking services while working alongside infrastructure, security, and platform engineering teams. The role offers exposure to a broad range … virtualisation, automation, and cloud-connected environments. Key Responsibilities: Support the design, implementation, and maintenance of LAN, WAN, and data centre network infrastructure. Monitor network performance and availability, investigating and resolving network incidents and faults. Configure, maintain, and troubleshoot switches, routers, firewalls, and associated networking equipment. Assist with network upgrades ...

Lead Backend Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
building cloud-native microservices, Python preferred, though strong experience in another language works too! Systems at scale - You have built distributed architectures and understand performance tuning and observability, on top of solid fundamentals in data structures, algorithms and system design You strive for simplicity - You build systems that … year - Here is what the last one looked like. Benefits Market-competitive salary , benchmarked against your function and reviewed every year Annual performance bonus , linked to company performance and your contribution Share options , a real stake in the company and a share in the future you build Private ...

Boomi Integration Architect (+Lead Developer)

Hiring Organisation
Jobleads-UK
Location
United Kingdom
extensions. Lead Boomi developers and conduct code and design reviews. Define logging, monitoring, error handling and support processes. Support testing, deployment, production issues and performance optimisation. Produce architecture diagrams, technical designs and mapping documents. Work closely with clients, business teams and technical stakeholders. Strong hands-on experience with Boomi … SFTP and X12 transactions. Strong Java or Groovy scripting skills. Experience integrating ERP, CRM, HCM and e-commerce platforms. Strong troubleshooting and performance-tuning skills. Experience leading and mentoring development teams. Strong client-facing and communication skills. Boomi Developer or Architect certification. Experience with Boomi Master Data ...

Oracle PL/SQL Developer - London or Edinburgh

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
involve working closely with delivery teams and end‐client stakeholders to develop, optimise, and support business‐critical Oracle‐based systems, with particular emphasis on performance, stability, and production support. Responsibilities Deliver Oracle PL/SQL development contributing across the full SDLC from requirements through to release and support. Build … production environments, including incident investigation, root‐cause analysis, defect fixes, and controlled releases in line with agreed SLAs. Analyse and improve database and application performance, with exposure to query optimisation, execution plans, indexing, and performance diagnostics. Work closely with project teams, client stakeholders, and QA to deliver high ...

Principal Java Engineer

Hiring Organisation
Jobleads-UK
Location
Wallingford, England, United Kingdom
engineers through technical leadership and best practice. Platform architecture 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 ...

Lead Software Engineer - Java, AWS

Hiring Organisation
Jobleads-UK
Location
Glasgow, Scotland, United Kingdom
based applications Collaborate with stakeholders to define technical requirements and project goals Mentor and support engineers, fostering growth and knowledge sharing Drive code quality, performance, and security standards across projects Implement best practices in software engineering and agile methodologies Troubleshoot and resolve complex technical issues Review code and provide … platforms and containerization Apply familiarity with DevOps practices and CI/CD pipelines Utilize knowledge of front-end technologies and frameworks Demonstrate expertise in performance tuning and optimization Leverage experience with database technologies (SQL and NoSQL) Use understanding of distributed systems and scalability Apply experience in mentoring ...

Solution Architect - GPU & HPC

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
researchers to enterprises running the world’s most compute-intensive workloads. We deliver on-demand and private GPU infrastructure to teams who treat performance as a requirement, not a feature. We’re a tight-knit, fast-moving team working at the cutting edge of AI cloud infrastructure. We practise … more interested in how you think and work than in a perfect CV. You’ll likely come from an HPC, AI infrastructure, or high-performance cloud background and bring a combination of the following: Proven experience in HPC or AI software stack design and delivery at scale — including workload ...

Technical Principal Architect - Agentic AI & Messaging

Hiring Organisation
Jobleads-UK
Location
Glasgow, Scotland, United Kingdom
e.g., Kafka, AMPS) for reliable distributed communication. Database architecture: Architect relational and NoSQL data stores (e.g., Oracle/RDS, MongoDB/DynamoDB) for integrity, performance, and growth. Technical oversight: Guide teams on architectural adoption, engineering excellence, and code quality across core languages and platforms. Governance: Establish documentation, review processes … code review in both languages. Strong experience with relational databases (e.g., Oracle, Amazon RDS) and NoSQL databases (e.g., MongoDB, AWS DynamoDB), including schema design, performance tuning, and data modeling. Experience managing and coordinating technology initiatives across multiple regions and applications. Expertise with data architecture and event driven architecture. ...

Principal Software Engineer AI Native

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
ownership of solution delivery from specification through deployment and ongoing optimisation. Review code and ensure engineering quality, maintainability, security, and performance. Support complex troubleshooting, performance tuning, and root‐cause analysis. AI‐Native Engineering Lead adoption of AI‐assisted development tools and agentic AI workflows. Apply Spec‐Driven Development … architecture and operational excellence. Strong database design and optimisation experience. Experience with relational and NoSQL databases. Understanding of complex data flows, integration architectures, and performance optimisation. Practical experience using AI‐assisted engineering tools. Strong AI literacy and understanding of agentic AI workflows. Experience reviewing and validating AI‐generated code ...

Senior Database Developer (SQL)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
deliver scalable solutions Design and enhance data pipelines, reporting solutions, and operational tooling Support and improve critical business applications and databases Contribute to performance tuning, automation, and continuous improvement initiatives Collaborate with development teams across the wider technology function Requirements Strong commercial experience working with SQL and relational ...

Senior Microsoft Dynamics BC/NAV Developer (Remote)

Hiring Organisation
Jobleads-UK
Location
Chester, England, United Kingdom
with the business Desirable skills: Cloud Technologies (Azure and/or AWS) CI/CD pipeline PowerShell Azure DevOps Salesforce .NET NAV/BC performance tuning Experience of using verticals such as Jet Analytics Best practice code & architectural patterns Commercial experience within the motor industry What ...

Cassandra Database Engineer - NoSQL

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 700 - 745 Daily
replication strategies and partitioning models. Develop and optimise data models aligned to query patterns (denormalization ,partition key design, avoiding hotspots and wide partitions). Performance tuning: compaction strategies consistency levels, read/write path optimisation, JVM/GC tuning. Manager cluster operations: node additions/decommissions, repairs (node ...

Data Solution Principal

Hiring Organisation
Jobleads-UK
Location
Birmingham, England, United Kingdom
Your strategic mindset: Quality Advocate: You take personal pride in the integrity of your work. Beyond just fixing bugs, you champion quality assurance and performance tuning as a mindset, ensuring the data programs we build for our clients are robust, reliable, and respected. Industry Stewardship ...

Lead C++ / Java Developer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
maintain C++ and Java services supporting FX matching and trading workflows.* Own technical delivery for key platform components, ensuring alignment with LSEG architectural principles, performance standards, and operational controls* Build and evolve low‐latency, high‐availability systems handling high message volumes and time‐critical processing.* Ensure systems meet … across production, QA, and client environments, including root‐cause analysis of cross‐system failures.* Improve code quality and maintainability through clean design, automated testing, performance tuning, and controlled refactoring.* Integrate and manage dependencies on messaging platforms, data distribution systems, and upstream/downstream market infrastructure.* Evaluate and adopt ...

Senior Manager- Software Engineering

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
influence the design of secure, scalable, and resilient infrastructure while cultivating top engineering talent. What You’ll Do: Architect and design scalable, resilient, high‐performance backend systems and platforms in AWS, prioritizing reliability, security, and cost efficiency. Contribute hands‐on to key initiatives—including design reviews, prototyping, coding, performance tuning, and debugging—typically 30% of your time, while mentoring engineers and establishing high standards. Lead cross‐team technical initiatives; drive design forums, establish engineering guardrails, and ensure high‐quality delivery via code reviews and automation. Partner closely with Product, Design, Data Science, and Platform teams to define ...

Delphi Developer

Hiring Organisation
Jobleads-UK
Location
Essex, England, United Kingdom
ongoing development and modernisation initiatives. The Role As a Delphi/SQL Developer, you will play a vital role in ensuring the stability, performance, and scalability of a complex enterprise system used globally. You will be responsible for analysing existing codebases, implementing improvements, resolving defects, and contributing to future … drive long‐term system reliability and efficiency. Key Responsibilities Maintain, support, and enhance existing Delphi applications Diagnose and resolve complex software defects and performance issues Analyse legacy code and identify opportunities for improvement and modernisation Work closely with business stakeholders to gather and translate requirements Develop and implement ...

Senior Software Engineer – Real-Time Data Platform

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
You1;ll be working on a distributed, event-driven platform responsible for processing billions of market data messages per day. This is a high-performance environment where reliability, scalability, and correctness are essential. Our platform acts as the backbone of the business, ensuring that accurate and timely market data … highly available systems. Define and manage infrastructure using Terraform. Implement CI/CD pipelines and deployment workflows using tools like Harness. Optimise systems for performance, latency, throughput, and cost. What We1;re Looking For Excellent collaboration and communication skills. Strong experience in distributed systems and event-driven architectures. Hands ...

SQL Developer

Hiring Organisation
Candour
Location
Stoke-On-Trent, England, United Kingdom
role in designing, developing, and optimising database solutions. This is an opportunity for a strong SQL professional to influence technical direction, improve database performance, support business-critical systems, and mentor other developers. All the while, working within a collaborative technology team and playing a key role in improving … design, development, and optimisation of SQL Server database solutions Develop and optimise complex T-SQL including stored procedures, functions, views, and triggers Troubleshoot database performance issues, including query optimisation, blocking, and deadlocks Support database security, backups, recovery, and high availability solutions Work with developers, analysts, and stakeholders to deliver ...